20-F

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 20-F

(Mark One)

☐         REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

OR

☒         ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2021

OR

☐         TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to __________

OR

☐         SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of event requiring this shell company report __________

Commission file number 001-37384

GALAPAGOS NV

(Exact name of Registrant as specified in its charter and translation of Registrant’s name into English)

Belgium

(Jurisdiction of incorporation or organization)

Generaal De Wittelaan L11 A3

2800 Mechelen, Belgium

(Address of principal executive offices)

Onno van de Stolpe

Chief Executive Officer

Galapagos NV

Generaal De Wittelaan L11 A3

2800 Mechelen, Belgium

Tel: +32 15 342 900 Fax: +32 15 342 901

(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act.

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
American Depositary Shares, each representing one ordinary share, no par value per share	GLPG	The Nasdaq Stock Market LLC
Ordinary shares, no par value per share*		The Nasdaq Stock Market LLC*

* Not for trading, but only in connection with the registration of the American Depositary Shares.

Securities registered or to be registered pursuant to Section 12(g) of the Act. None

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act. None

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

Ordinary shares, no par value per share: 65,552,721 as of December 31, 2021

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    ☒  Yes    ☐  No

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.    ☐  Yes    ☒  No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days    ☒  Yes    ☐  No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    ☒  Yes    ☐   No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.:

Large accelerated filer  ☒ Accelerated filer  ☐ Non-accelerated filer  ☐ Emerging growth company  ☐

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act.  ◻

† The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.  ☒

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

U.S. GAAP  ☐ International Financial Reporting Standards as issued
by the International Accounting Standards Board  ☒ Other  ☐

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.    ☐  Item 17    ☐  Item 18

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ☐  Yes    ☒  No

TABLE OF CONTENTS

		Page
INTRODUCTION		1
PART I		4
Item 1	Identity of Directors, Senior Management and Advisers	4
Item 2	Offer Statistics and Expected Timetable	4
Item 3	Key Information	4
	A.  Selected Financial Data	4
	B.  Capitalization and Indebtedness	6
	C.  Reasons for the Offer and Use of Proceeds	6
	D.  Risk Factors	6
Item 4	Information on the Company	50
	A. History and Development of the Company	50
	B. Business Overview	51
	C. Organizational Structure	106
	D. Property, Plants and Equipment	106
Item 4A	Unresolved Staff Comments	107
Item 5	Operating and Financial Review and Prospects	107
	A. Operating Results	119
	B. Liquidity and Capital Resources	130
	C. Research and Development, Patents and Licenses, Etc	134
	D. Trend Information	134
	E. Off-Balance Sheet Arrangements	134
	F. Tabular Disclosure of Contractual Obligations	135
	G. Safe Harbor	136
Item 6	Directors, Senior Management and Employees	136
	A. Directors and Senior Management	136
	B. Compensation	143
	C. Board Practices	155
	D. Employees	159
	E. Share Ownership	159
Item 7	Major Shareholders and Related Party Transactions	159
	A. Major Shareholders	159
	B. Related Party Transactions	163
	C. Interests of Experts and Counsel	170
Item 8	Financial Information	170
	A. Consolidated Statements and Other Financial Information	170
	B. Significant Changes	171
Item 9	The Offer and Listing	171
	A. Offer and Listing Details	171
	B. Plan of Distribution	171
	C. Markets	171
	D. Selling Shareholders	171
	E. Dilution	171
	F. Expenses of the Issue	171

Item 10	Additional Information	171
	A. Share Capital	171
	B. Memorandum and Articles of Association	171
	C. Material Contracts	171
	D. Exchange Controls	172
	E. Taxation	172
	F. Dividends and Paying Agents	183
	G. Statement by Experts	184
	H. Documents on Display	184
	I.   Subsidiary Information	184
Item 11	Quantitative and Qualitative Disclosures About Market Risk	184
Item 12	Description of Securities Other than Equity Securities	186
	A. Debt Securities	186
	B. Warrants and Rights	186
	C. Other Securities	186
	D. American Depositary Shares	186
PART II		189
Item 13	Defaults, Dividend Arrearages and Delinquencies	189
Item 14	Material Modifications to the Rights of Security Holders and Use of Proceeds	189
Item 15	Controls and Procedures	189
Item 16	Reserved	190
Item 16A	Audit Committee Financial Expert	190
Item 16B	Code of Ethics	190
Item 16C	Principal Accountant Fees and Services	190
Item 16D	Exemptions from the Listing Standards for Audit Committees	191
Item 16E	Purchases of Equity Securities by the Issuer and Affiliated Purchasers	191
Item 16F	Change in Registrant’s Certifying Accountant	191
Item 16G	Corporate Governance	191
Item 16H	Mine Safety Disclosure	193
PART III		194
Item 17	Financial Statements	194
Item 18	Financial Statements	194
Item 19	Exhibits	194
SIGNATURES
EXHIBIT INDEX

ii

INTRODUCTION

Unless otherwise indicated or unless the context requires otherwise, “GLPG,” “the company,” “our company,” “we,” “us,” and “our” refer to Galapagos NV and its consolidated subsidiaries.

We own various trademark registrations and applications, and unregistered trademarks, including GALAPAGOS, JYSELECA (in the European countries where we commercialize filgotinib), and our corporate logo. All other trade names, trademarks and service marks referred to in this annual report on Form 20-F, or this annual report, are the property of their respective owners. Trade names, trademarks and service marks of other companies appearing in this annual report are the property of their respective holders. Solely for convenience, the trademarks and trade names in this annual report may be referred to without the ® and ™ symbols, but such references should not be construed as any indicator that their respective owners will not assert, to the fullest extent under applicable law, their rights thereto. We do not intend to use or display other companies’ trademarks and trade names to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

Our audited consolidated financial statements have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the International Accounting Standards Board, or IASB. Our consolidated financial statements are presented in euros. All references in this annual report to “$,” “US$,” “U.S.$,” “U.S. dollars,” “dollars,” and “USD” mean U.S. dollars and all references to “€” and “euros” mean euros, unless otherwise noted. Throughout this annual report, references to “ADSs” mean American Depositary Shares or ordinary shares represented by American Depositary Shares, as the case may be.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This annual report contains forward-looking statements within the meaning of Section 27A of the Securities Act

of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, that are based on our management’s beliefs and assumptions and on information currently available to our management. All statements other than present and historical facts and conditions contained in this annual report, including statements regarding our future results of operations and financial positions, business strategy, plans and our objectives for future operations, are forward-looking statements. When used in this annual report, the words “anticipate,” “believe,” “can,” “could,” “estimate,” “expect,” “intend,” “is designed to,” “may,” “might,” “plan,” “potential,” “predict,” “objective,” “should,” or the negative of these and similar expressions identify forward-looking statements. Forward-looking statements include, but are not limited to, statements about: the initiation, timing, progress and results of our preclinical studies and clinical trials, and our research and development programs;

● the initiation, timing, progress and results of our preclinical studies and clinical trials, and our research and development programs;

● our ability to advance product candidates into, and successfully complete, clinical trials;

● our reliance on the success of our product candidate filgotinib and certain other product candidates;

● the timing or likelihood of regulatory filings and approvals;

● our ability to develop sales and marketing capabilities;

● the commercialization of our product candidates, if approved;

● the pricing and reimbursement of our product candidates, if approved;

● the implementation of our business model, strategic plans for our business, product candidates and technology;

● the scope of protection we are able to establish and maintain for intellectual property rights covering our product candidates and technology;

● our ability to operate our business without infringing, misappropriating or otherwise violating the intellectual property rights and proprietary technology of third parties;

● cost associated with enforcing or defending intellectual property infringement, misappropriation or violation; product liability; and other claims;

● regulatory developments in the United States, Europe, and other jurisdictions;

● estimates of our expenses, future revenues, capital requirements and our needs for additional financing;

● the potential benefits of strategic collaboration agreements and our ability to enter into strategic arrangements;

● our ability to maintain and establish collaborations or obtain additional grant funding;

● the rate and degree of market acceptance of our product candidates if approved by regulatory authorities;

● our financial performance;

● developments relating to our competitors and our industry, including competing therapies;

● our ability to effectively manage and anticipate growth;

● our ability to attract and retain qualified employees and key personnel;

● statements regarding future revenue, hiring plans, expenses, capital expenditures, capital requirements and share performance; and

● other risks and uncertainties, including those listed in the section of this annual report titled “Item 3.D.—Risk Factors.”

You should refer to the section of this annual report titled “Item 3.D.—Risk Factors” for a discussion of important factors that may cause our actual results to differ materially from those expressed or implied by our forward-looking statements. As a result of these factors, we cannot assure you that the forward-looking statements in this annual report will prove to be accurate. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame or at all. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. Further, we cannot assess the impact of each such factor on our business or the extent to which any factor, or combination of factors, may cause actual results to be materially different from those contained in any forward-looking statement.

You should read this annual report and the documents that we reference in this annual report and have filed as exhibits to this annual report completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forwardlooking statements by these cautionary statements. In light of the significant risks and uncertainties to which our forward-looking statements are subject, you should not place undue reliance on or regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified timeframe, or at all. We discuss many of these risks in greater detail in this annual report. For all forward-looking statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.

This annual report contains market data and industry forecasts that were obtained from third parties and industry publications. These data involve a number of assumptions and limitations, and you are cautioned not to give undue weight to such estimates. We have not independently verified any thirdparty-information. While we believe the market position, market opportunity and market size information included in this annual report is generally reliable, such information is inherently imprecise.

Please see the Glossary of Terms at the end of Item 4 for definitions of scientific and other terms used in this annual report.

2

Summary of risk factors

We are heavily dependent upon our global R&D collaboration with Gilead and the amendment of our arrangement with Gilead for the commercialization and development of filgotinib. There can be no assurance that these arrangements will deliver the benefits we expect, including but not limited to the payment of potential future milestones, opt-in and/or royalty payments by Gilead.

We have no historical product revenues, which makes it difficult to assess our future prospects and financial results.

We have limited sales and distribution experience and are currently building a marketing and sales organization. We expect to continue to invest significant financial and management resources to continue to build these capabilities and to establish a European commercial infrastructure. To the extent any of our product candidates for which we maintain commercial rights is approved for marketing, if we are unable to establish marketing and sales capabilities or enter into agreements with third parties to market and sell our product candidates, we may not be able to market and sell any product candidates effectively, or generate product revenues.

The marketing and sale of filgotinib or future approved products may be unsuccessful or less successful than anticipated. We are heavily dependent on the success of filgotinib, which is approved for the treatment of rheumatoid arthritis in the European Union, Great Britain, and Japan and marketed under the brand name Jyseleca, and approved for the treatment of ulcerative colitis in European Union and Great Britain, and under regulatory review in Japan for the treatment of ulcerative colitis.

We are also dependent on the success of our other clinical-stage product candidates, such as our inflammation candidates/trials (such as GLPG3667, GLPG0555, GLPG3121, and GLPG4399, and the MANTA/MANTA RAy trials with filgotinib), and our lung fibrosis candidate (GLPG4716). We cannot give any assurance that any product candidate will successfully complete clinical trials or receive regulatory approval, which is necessary before it can be commercialized.

Clinical development is a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials as well as data from any interim analysis of ongoing clinical trials may not be predictive of future trial results or approved label for clinical use. Clinical failure can occur at any stage of clinical development.

Due to our limited resources and access to capital in the past, we have decided to prioritize development of certain product candidates and may have forgone the opportunity to capitalize on product candidates or indications that may ultimately have been more profitable or for which there was a greater likelihood of success.

We may not be successful in our efforts to use and expand our novel target discovery platform to build a pipeline of product candidates.

The regulatory approval processes of the FDA, the EMA, the MHLW, and other comparable regulatory authorities are lengthy, time consuming and inherently unpredictable which may affect the commercial viability of our products in development. If we are unable to ultimately obtain regulatory approval for our product candidates, our business will be substantially harmed.

In connection with our global clinical trials, local regulatory authorities may have differing perspectives on clinical protocols and safety parameters, which impacts the manner in which we conduct these global clinical trials and could negatively impact our chances for obtaining regulatory approvals or marketing authorization in these jurisdictions, or for obtaining the requested label or dosage for our product candidates, if regulatory approvals or marketing authorizations are obtained.

Even if we receive regulatory approval for any of our product candidates, we will be subject to ongoing obligations and continued regulatory review, which may result in significant additional expense. Additionally, our product candidates, if approved, could be subject to labeling and other restrictions and market withdrawal, and we may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with our products.

3

Our future clinical trials or those of any of our collaborators may reveal significant adverse events not seen in our preclinical studies or earlier clinical trials and result in a safety profile that could inhibit regulatory approval or market acceptance of any of our product candidates.

Coverage and reimbursement decisions by third-party payers may have an adverse effect on pricing and market acceptance.

Legislative and regulatory activity may exert downward pressure on potential pricing and reimbursement for any of our product candidates, if approved, that could materially affect the opportunity to commercialize.

We face significant competition for our drug discovery and development efforts, and if we do not compete effectively, our commercial opportunities will be reduced or eliminated.

Our ability to compete may decline if we do not adequately protect our proprietary rights.

Our business, results of operations and future growth prospects could be materially and adversely affected by the COVID-19 pandemic.

The market price of the ADSs could be subject to wide fluctuations.

We may be at an increased risk of securities class action litigation.

PART I

Item 1       Identity of directors, senior management and advisers

Not applicable.

Item 2       Offer statistics and expected timetable

Not applicable.

Item 3       Key information

A.     Selected financial data

Our audited consolidated financial statements have been prepared in accordance with IFRS, as issued by the IASB. We derived the selected statements of consolidated operations data, selected statements of consolidated financial position and selected statements of consolidated cash flows, each as of December 31, 2021, 2020 and 2019 from the audited consolidated financial statements, which are included herein. We derived the selected statements of consolidated operations data, selected statements of consolidated financial position and selected statements of consolidated cash flows, each as of 2018 and 2017 from our audited consolidated financial statements, which are not included herein.

This data should be read together with, and is qualified in its entirety by reference to, “Item 5—Operating and financial review and prospects” as well as our financial statements and notes thereto appearing elsewhere in this annual report. Our historical results are not necessarily indicative of the results to be expected in the future.

4

Consolidated statement of operations:

	Year ended December 31,
	2021		2020		2019		2018		2017
		(Euro, in thousands, except per share data)
Product net sales	€	14,753	€	2	€	—	€	—	€	—
Collaboration revenues		470,093		478,051		834,901		278,666		127,087
Total net revenues		484,846		478,053		834,901		278,666		127,087
Cost of sales		(1,629)		—		—		—		—
Research and development expenses		(491,707)		(523,667)		(420,090)		(316,222)		(218,502)
Sales and marketing expenses		(69,956)		(66,468)		(24,577)		(4,146)		(2,803)
General and administrative expenses		(140,899)		(118,757)		(72,382)		(34,377)		(24,415)
Other operating income		53,749		52,207		50,896		29,000		28,830
Operating income/loss (-)		(165,596)		(178,632)		368,748		(47,080)		(89,802)
Fair value re-measurement of share subscription agreement and warrants		2,960		3,034		(181,644)		—		—
Other financial income		70,548		18,667		21,389		18,264		4,877
Other financial expenses		(30,911)		(152,844)		(59,968)		(2,602)		(30,582)
Income/loss (-) before tax		(122,999)		(309,775)		148,525		(31,417)		(115,507)
Income taxes		(2,423)		(1,226)		165		(822)		(198)
Net income/loss (-) from continuing operations		(125,422)		(311,001)		148,689		(32,240)		(115,704)
Net income from discontinued operations, net of tax		22,191		5,565		1,156		2,981
Net income/loss (-)	€	(103,231)	€	(305,436)	€	149,845	€	(29,259)	€	(115,704)
Net income/loss (-) attributable to:
Owners of the parent		(103,231)		(305,436)		149,845		(29,259)		(115,704)
Basic income/loss (-) per share	€	(1.58)	€	(4.69)	€	2.60	€	(0.56)	€	(2.34)
Diluted income/loss (-) per share	€	(1.58)	€	(4.69)	€	2.49	€	(0.56)	€	(2.34)
Basic income/loss (-) per share from continuing operations	€	(1.91)	€	(4.78)	€	2.58	€	(0.62)	€	(2.34)
Diluted income/loss (-) per share from continuing operations	€	(1.91)	€	(4.78)	€	2.47	€	(0.62)	€	(2.34)
Weighted average number of shares - Basic (in '000 shares)		65,500		65,075		57,614		52,113		49,479
Weighted average number of shares - Diluted (in '000 shares)		65,500		65,075		60,113		52,113		49,479

Condensed consolidated statement of financial position:

	December 31,
	2021		2020		2019		2018		2017
		(Euro, in thousands)
Current financial investments	€	2,469,809	€	3,026,278	€	3,919,216	€	—	€	—
Cash and cash equivalents		2,233,368		2,135,187		1,861,616		1,290,796		1,151,211
Cash and cash equivalents classified as assets held for sale		—		7,884		—		—		—
Total assets		5,193,160		5,717,731		6,068,609		1,439,496		1,286,274
Share capital		292,075		291,312		287,282		236,540		233,414
Share premium account		2,730,391		2,727,840		2,703,583		1,277,780		993,025
Total equity		2,643,362		2,670,355		2,875,658		1,214,249		1,011,983
Total non-current liabilities		1,983,325		2,412,101		2,621,158		5,342		102,592
Total current liabilities		566,474		635,274		571,793		219,905		171,699
Total liabilities		2,549,798		3,047,375		3,192,951		225,247		274,291
Total liabilities and equity	€	5,193,160	€	5,717,731	€	6,068,609	€	1,439,496	€	1,286,274

5

Condensed consolidated statement of cash flows:

	2021		2020		2019		2018		2017
	(Euro, in thousands)
Cash and cash equivalents at beginning of the period	€	2,143,071	€	1,861,616	€	1,290,796	€	1,151,211	€	973,241
Net cash flows generated from/used in (-) operating activities		(503,827)		(427,336)		3,208,617		(142,466)		(147,030)
Net cash flows generated from/used in (-) investing activities		541,238		757,288		(3,764,660)		(15,914)		(549)
Net cash flows generated from/used in (-) financing activities		(3,876)		22,040		1,335,751		287,876		353,357
Transfer to current financial investments		—		—		(198,922)		—		—
Effect of exchange rate differences on cash and cash equivalents		56,763		(70,539)		(9,966)		10,089		(27,808)
Cash and cash equivalents at end of the period	€	2,233,368	€	2,143,071	€	1,861,616	€	1,290,796	€	1,151,211

	December 31,
	2021		2020		2019		2018		2017
		(Euro, in thousands)
Current financial investments	€	2,469,809	€	3,026,278	€	3,919,216	€	—	€	—
Cash and cash equivalents from continuing operations		2,233,368		2,135,187		1,861,616		1,290,796		1,151,211
Cash and cash equivalents classified as assets held for sale		—		7,884		—		—		—
Current financial investments and cash and cash equivalents	€	4,703,177	€	5,169,349	€	5,780,832	€	1,290,796	€	1,151,211

B.     Capitalization and indebtedness

Not applicable.

C.     Reasons for the offer and use of proceeds

Not applicable.

D.     Risk factors

Our business is subject to significant risks. You should carefully consider all of the information set forth in this annual report and in our other filings with the U.S. Securities and Exchange Commission, or the SEC, including the following risk factors which we face, and which are faced by our industry. Our business, financial condition, or results of operations could be materially adversely affected by any of these risks. This report also contains forward-looking statements that involve risks and uncertainties. Our results could materially differ from those anticipated in these forward-looking statements, as a result of certain factors including the risks described below and elsewhere in this annual report and our other SEC filings. See “Special Note Regarding Forward-Looking Statements” above.

Risks related to commercialization

The marketing and sale of filgotinib or future approved products may be unsuccessful or less successful than anticipated. We are heavily dependent on the success of filgotinib, which is approved for the treatment of rheumatoid arthritis in the European Union, Great Britain, and Japan, and approved for the treatment of ulcerative colitis in the European Union and Great Britain, and under regulatory review in Japan for the treatment of ulcerative colitis.
​

6

We, and our collaboration partner, Gilead, began commercializing filgotinib in the European Union and Great Britain, and Gilead began commercializing filgotinib in Japan for the treatment of rheumatoid arthritis, or RA, following receipt in September 2020 of marketing approval from the European Medicines Agency, or the EMA, from the Medicines and Healthcare products Regulatory Agency, or the MHRA, and from the Japanese Ministry of Health, Labor and Welfare, or the MHLW. We received marketing approval from the EMA for the treatment of ulcerative colitis, or UC in November 2021, and from the MHRA in January 2022. Gilead expects to receive a decision on the application for approval from the MHLW for filgotinib for the treatment of UC in the first half of 2022.

In 2021, we assumed sole responsibility in Europe for the commercialization of filgotinib as well as for all future indications for filgotinib, including becoming the marketing authorization holder for Jyseleca for the treatment of RA in twenty-seven European countries, Iceland, Norway and Liechtenstein (the European Economic Area or EEA), and Great Britain, with Gilead maintaining commercialization rights and remaining the marketing authorization holder for filgotinib and other future indications for filgotinib outside of Europe, including in Japan where Jyseleca is approved for the treatment of RA and is co-marketed with Eisai. Although we have secured reimbursement for Jyseleca in fourteen European countries, including Germany, France, Spain, Italy and Great Britain, and our sales force commenced making sales of Jyseleca in the second half of 2021, we have limited experience as a commercial company, and there is limited information about our ability to overcome many of the risks and uncertainties encountered by companies commercializing products in the biopharmaceutical industry. To market and sell filgotinib, and any other product candidates that are approved for marketing in the future, we will need to successfully:

• establish and maintain, in the geographies where we hope to treat patients, relationships with qualified treatment centers who will be treating the patients who receive filgotinib and any future products;

• continue to obtain adequate pricing and reimbursement for filgotinib and any future products in each of the jurisdictions in which we plan to commercialize approved products;

• obtain regulatory authorization for the development and commercialization of the product candidates in our pipeline;

• develop and maintain successful strategic alliances; and

• manage our spending as costs and expenses increase due to clinical trials, marketing approvals, and commercialization, including for any extension of marketing approval of filgotinib, and for any future products.

If we are not successful in accomplishing these objectives, we may not be able to develop product candidates, successfully commercialize filgotinib or any future products, raise capital, expand our business, or continue our operations. Further, to the extent that Gilead is commercializing filgotinib in one or more jurisdictions, we are significantly dependent on their successful accomplishment of these objectives, which is largely out of our control.

The commercial success of filgotinib and of any future products will depend upon the degree of market acceptance by physicians, healthcare payers, patients, and the medical community.

The commercial success of filgotinib and of any future products will depend in part on acceptance by the medical community, patients, and third-party or governmental payers as medically useful, cost-effective, and safe. Filgotinib and any other products that we and our current and future partners may bring to the market may not gain market acceptance by physicians, patients, third-party payers and others in the medical community. If these products do not achieve an adequate level of acceptance, we may not generate significant product revenue and may not become profitable. The degree of market acceptance of filgotinib and of any future products will depend on a number of factors, including:

• the efficacy and safety as demonstrated in clinical trials;

• the timing of market introduction of the product as well as the timing of entry of competitive products;

• the clinical indications for which the product is approved;

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• acceptance by physicians, the medical community, and patients of the product as a safe and effective treatment;

• the convenience of prescribing and initiating patients on the product;

• the potential and perceived advantages of such product over alternative treatments;

• the cost of treatment in relation to alternative treatments, including any similar generic treatments;

• the availability of coverage and adequate reimbursement and pricing by third-party payers and government authorities;

• relative convenience and ease of administration;

• the prevalence and severity of adverse side effects; and

• the effectiveness of sales and marketing efforts.

Even if a product displays a favorable efficacy and safety profile in preclinical and clinical studies and receives regulatory approval, market acceptance of the product will not be known until after it is launched. Our efforts to educate the medical community and third-party payers on the benefits of our products may require significant resources and may never be successful. Our efforts to educate the marketplace may require more resources than are required by the conventional methods marketed by our competitors. Any of these factors may cause filgotinib or any future products to be unsuccessful or less successful than anticipated.

We have limited sales and distribution experience. We expect to continue to invest financial and management resources to build these capabilities further. To the extent any of our product candidates for which we maintain commercial rights is approved for marketing, if we are unable to establish marketing and sales capabilities or enter into agreements with third parties to market and sell our products, we may not be able to market and sell any products effectively, or generate product revenues as projected.
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We have built, and continue to build a marketing and sales organization for the marketing, sales, and distribution of pharmaceutical products. In 2021, we assumed sole responsibility in Europe for the commercialization of filgotinib, approved in RA at that point, and as well as for all future indications for filgotinib, with Gilead maintaining commercialization rights and the marketing authorization holder for filgotinib and other future indications for filgotinib outside of Europe. This assumption of responsibility by us has required us to, and will require us to continue to, develop robust marketing and sales capabilities. We have limited experience as a commercial company and there is limited information about our ability to overcome many of the risks and uncertainties encountered by companies commercializing products in the biopharmaceutical industry. In order to commercialize filgotinib independently in Europe and any product candidates that receive marketing approval and for which we maintain commercial rights, we will need to maintain and expand marketing, sales, distribution, managerial and other non-technical capabilities or make arrangements with third parties to perform these services, and these efforts may not achieve the desired results. Further, in the event of development of any other product candidates for which we maintain commercial rights, we may elect to build a targeted specialty sales force which will be expensive and time consuming. Any failure or delay in the development of our internal market access, sales, marketing and distribution capabilities would adversely impact the commercialization of these products. With respect to any proprietary product candidates we may have in the future, we may choose to partner with third parties that have direct sales forces and established distribution systems, either to augment our own sales force and distribution systems or in lieu of our own sales force and distribution systems.

If we are unable to continue to develop and scale our own sales, marketing and distribution capabilities for filgotinib in Europe, or for any future products which we choose to commercialize ourselves, we will not be able to commercialize such products successfully without reliance on third parties and, in the case of filgotinib, we may be unable to realize all of the benefits of the transition of European rights to filgotinib from Gilead to us. Further, if we are unable to enter into collaborations with third parties for the commercialization of approved products, if any, on acceptable terms or at all, or if any such partner (such as Gilead, in the case of filgotinib and filgotinib for additional indications) does not devote sufficient resources to the commercialization of our product or otherwise fails in commercialization efforts, we may not be able achieve the commercial goal for any of our product candidates that

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receive regulatory approval. If we are not able to commercialize our product candidates well, either on our own or through collaborations with one or more third parties, our future revenue will be materially and adversely impacted.

Coverage and reimbursement decisions by third-party payers may have an adverse effect on pricing and market acceptance.

There is significant uncertainty related to the third-party coverage and reimbursement of newly approved drugs. To the extent that we retain commercial rights following clinical development, we would seek approval to market our product candidates in the United States, the European Union and other selected jurisdictions. Market acceptance and sales of our product candidates, if approved, in both domestic and international markets will depend significantly on the availability of adequate coverage and reimbursement from third-party payers for any of our product candidates and may be affected by existing and future healthcare reform measures. Third-party payers, such as government authorities, private health insurers and health maintenance organizations, decide which drugs they will cover and establish payment levels. See section entitled “Information on the Company – Pharmaceutical coverage, pricing and reimbursement.”

We cannot be certain that coverage and adequate reimbursement will be available for any of our product candidates, if approved. Also, we cannot be certain that reimbursement policies will not reduce the demand for, or the price paid for, any of our product candidates, if approved. If reimbursement is not available or is available on a limited basis for any of our product candidates, if approved, we may not be able to commercialize successfully any such product candidate.

Obtaining coverage and reimbursement approval for a product from a government or other third-party payer is a time consuming and costly process that could require us to provide supporting scientific, clinical and cost-effectiveness data for the use of our products to the payer. We may not be able to provide data sufficient to gain acceptance with respect to coverage and reimbursement or to have pricing set at a satisfactory level. If reimbursement of our future products, if any, is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels such as may result where alternative or generic treatments are available, we may be unable to achieve or sustain profitability.

In certain countries, particularly in the European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product candidate. To obtain reimbursement or pricing approval in some countries, we may be required to conduct additional clinical trials that compare the cost-effectiveness of our product candidates to other available therapies. If reimbursement of any of our product candidates, if approved, is unavailable or limited in scope or amount in a particular country, or if pricing is set at unsatisfactory levels, we may be unable to achieve or sustain profitability of our products in such country.

The delivery of healthcare in the European Union, including the establishment and operation of health services and the pricing and reimbursement of medicines, is almost exclusively a matter for national, rather than EU, law and policy. National governments and health service providers have different priorities and approaches to the delivery of healthcare and the pricing and reimbursement of products in that context. In general, however, the healthcare budgetary constraints in most EU member states have resulted in restrictions on the pricing and reimbursement of medicines by relevant health service providers. Coupled with ever-increasing EU and national regulatory burdens on those wishing to develop and market products, this could prevent or delay marketing approval of our product candidates, restrict or regulate post-approval activities and affect our ability to commercialize any products for which we obtain marketing approval.

Legislative and regulatory activity may exert downward pressure on potential pricing and reimbursement for any of our product candidates, if approved, that could materially affect the opportunity to commercialize.

The United States and several other jurisdictions are considering, or have already enacted, a number of legislative and regulatory proposals to change the healthcare system in ways that could affect our ability to sell any of our product candidates profitably, if approved. Among policy-makers and payers in the United States and elsewhere, there is significant interest in promoting changes in healthcare systems with the stated goals of containing healthcare costs, improving quality and/or expanding access to healthcare. In the United States, the pharmaceutical industry has been a particular focus of these efforts and has been significantly affected by major legislative initiatives. There have been, and likely will continue to be, legislative and regulatory proposals at the federal and state levels directed at broadening the availability of healthcare and containing or lowering the cost of healthcare. See section entitled “Information on the

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Company – Patient Protection and Affordable Care Act and Healthcare Reform.” We cannot predict the initiatives that may be adopted in the future. The continuing efforts of the government, insurance companies, managed care organizations and other payers of healthcare services to contain or reduce costs of healthcare may adversely affect:

• the demand for any of our product candidates, if approved;

• the ability to set a price that we believe is fair for any of our product candidates, if approved;

• our ability to generate revenues and achieve or maintain profitability;

• the level of taxes that we are required to pay; and

• the availability of capital.

We expect that the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or, collectively, the ACA, as well as other healthcare reform measures that may be adopted in the future, may result in more rigorous coverage criteria and in additional downward pressure on the price that we receive for any approved product. Any reduction in reimbursement from Medicare or other government programs may result in a similar reduction in payments from private payors. The implementation of cost containment measures or other healthcare reforms may prevent us from being able to generate revenue, attain profitability or commercialize our product candidates.

Legislative and regulatory proposals have been made to expand post-approval requirements and restrict sales and promotional activities for pharmaceutical and biologic products. We cannot be sure whether additional legislative changes will be enacted, or whether FDA regulations, guidance or interpretations will be changed, or what the impact of such changes on the marketing approvals of our product candidates, if any, may be. In addition, increased scrutiny by Congress of the FDA’s approval process may significantly delay or prevent marketing approval, as well as subject us to more stringent product labeling and post-marketing testing and other requirements.

Moreover, increasing efforts by governmental and third-party payors in the United States and abroad to cap or reduce healthcare costs may cause such organizations to limit both coverage and the level of reimbursement for newly approved products and, as a result, they may not cover or provide adequate payment for our product candidates. There has been increasing legislative and enforcement interest in the United States with respect to specialty drug pricing practices. Specifically, there have been several recent U.S. Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring more transparency to drug pricing, reduce the cost of prescription drugs under Medicare, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs.

We expect that the healthcare reform measures that have been adopted and may be adopted in the future, may result in more rigorous coverage criteria and in additional downward pressure on the price that we receive for any approved product and could seriously harm our future revenues. Any reduction in reimbursement from Medicare or other government programs may result in a similar reduction in payments from private payors. The implementation of cost containment measures or other healthcare reforms may prevent us from being able to generate revenue, attain profitability or commercialize our products.

Risks related to product development and regulatory approval

We are also dependent on the success of our other clinical-stage product candidates, such as our inflammation candidates (such as filgotinib, GLPG3667, GLPG0555, GLPG3121, and GLPG4399), our lung fibrosis candidate (GLPG4716), and our autosomal dominant polycystic kidney disease candidate (GLPG2737). We cannot give any assurance that any product candidate will successfully complete clinical trials or receive regulatory approval, which is necessary before it can be commercialized.

Filgotinib is in Phase 3 trials in Crohn’s disease, or CD. Our business and future success is substantially dependent on our ability to commercialize filgotinib and to develop, obtain regulatory approval for, and then successfully commercialize filgotinib in additional indications. Our business and future success also depend on our ability to develop

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successfully, obtain regulatory approval for, and then successfully commercialize our other clinical-stage product candidates, including GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121 and GLPG4399.

Our product candidates will require additional clinical development, management of clinical and manufacturing activities, regulatory approval in multiple jurisdictions (if regulatory approval can be obtained at all), securing sources of commercial manufacturing supply, building of, or partnering with, a commercial organization, substantial investment and significant marketing, sales and distribution efforts before any revenues can be generated from product sales. We are not permitted to market or promote any of our product candidates before we receive regulatory approval from the FDA, the EMA, the MHRA, or any other comparable regulatory authority such as the MHLW, and we may never receive such regulatory approval for any of our product candidates. We cannot assure you that our clinical trials for filgotinib in CD, GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121, GLPG4399 and other candidates will be completed in a timely manner, or at all, or that we will be able to obtain approval from the FDA, the EMA, the MHRA, the MHLW, or any other comparable regulatory authority for any of these product candidates. We cannot be certain that we will advance any other product candidates into clinical trials. If any of filgotinib in CD, GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121, GLPG4399 or any future product candidate is not approved and commercialized, we will not be able to generate any product revenues for that product candidate. Moreover, any delay or setback in the development of any product candidate could adversely affect our business and cause the price of the American Depositary Shares, or ADSs, or our ordinary shares to fall.

Due to our limited resources and access to capital in the past, we have decided to prioritize development of certain product candidates and may have forgone the opportunity to capitalize on product candidates or indications that may ultimately have been more profitable or for which there was a greater likelihood of success.

Because we had limited resources in the past, we had to decide which product candidates to pursue and the resources to allocate to each. Consequently, we are currently primarily focused on the commercialization of filgotinib in RA and UC, and the development of filgotinib in CD, as well as on advancing our clinical-stage pipeline, including filgotinib, GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121, and GLPG4399. Our decisions concerning the allocation of research, collaboration, management, commercial and financial resources toward particular compounds, product candidates or therapeutic areas may not lead to the development of viable commercial products, we may forgo or delay pursuit of opportunities with other product candidates, or for other indications that may prove to have greater commercial potential. Similarly, our potential decisions to delay, terminate or collaborate with third parties in respect of certain product development programs may also prove not to be optimal and could cause us to miss valuable opportunities. If we make incorrect determinations regarding the market potential of our product candidates or misread trends in the pharmaceutical industry, our business, financial condition and results of operations could be materially adversely affected.

The regulatory approval processes of the FDA, the EMA, the MHRA, the MHLW and other comparable regulatory authorities are lengthy, time consuming and inherently unpredictable which may affect the commercial viability of our products in development. If we are unable ultimately to obtain regulatory approval for our product candidates, our business will be substantially harmed.

The time required to obtain approval by the FDA, the EMA, the MHRA, the MHLW and other comparable regulatory authorities is unpredictable but typically takes many years following the commencement of clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory authorities. In addition, approval policies, regulations, or the type and amount of clinical data necessary to gain approval may change during the course of a product candidate’s clinical development and may vary among jurisdictions. Although we and Gilead have received regulatory approval for filgotinib in the European Union, Great Britain, and Japan for the treatment of RA, in the European Union and Great Britain for the treatment of UC, and filgotinib is currently under regulatory review in Japan for the treatment of UC, it is possible that none of our other existing product candidates or any product candidates we may seek to develop in the future will ever obtain regulatory approval.

Our product candidates could fail to receive regulatory approval for many reasons, including the following:

• the FDA, the EMA, the MHRA, the MHLW or other comparable regulatory authorities may disagree with the design or implementation of our clinical trials;

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• we may be unable to demonstrate to the satisfaction of the FDA, the EMA, the MHRA, the MHLW or other comparable regulatory authorities that a product candidate is safe and effective for its proposed indication;

• the results of clinical trials may not meet the level of statistical significance required by the FDA, the EMA, the MHRA, the MHLW or other comparable regulatory authorities for approval;

• we may be unable to demonstrate that a product candidate’s clinical and other benefits outweigh its safety risks;

• filgotinib and many of our other product candidates are developed to act against targets discovered by us, and because many of our product candidates are novel mode of action products, they can carry an additional risk regarding the desired level of efficacy and safety profile;

• the FDA, the EMA, the MHRA, the MHLW or other comparable regulatory authorities may disagree with our interpretation of data from preclinical studies or clinical trials;

• the data collected from clinical trials of our product candidates may not be sufficient to support the submission of a new drug application, or NDA, supplemental NDA, biologics license application, or BLA, or other submission or to obtain regulatory approval in the United States, Europe or elsewhere;

• the FDA, the EMA, the MHRA, the MHLW or other comparable regulatory authorities may find deficiencies with or fail to approve the manufacturing processes or facilities of third-party manufacturers with which we contract for clinical and commercial supplies, or such processes or facilities may not pass a pre-approval inspection; and

• the approval policies or regulations of the FDA, the EMA, the MHRA, the MHLW or other comparable regulatory authorities may change or differ from one another significantly in a manner rendering our clinical data insufficient for approval.

This lengthy approval process as well as the unpredictability of future clinical trial results may result in our or our collaboration partners’ failure to obtain regulatory approval to market filgotinib in CD, GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121, GLPG4399 and/or other product candidates, which would harm our business, results of operations and prospects significantly. In addition, even if we were to obtain approval, regulatory authorities may approve any of our product candidates for fewer or more limited indications or patient populations than we request, may grant approval contingent on the performance of costly post-marketing clinical trials, or may approve a product candidate with a label that does not include the labeling claims necessary or desirable for the successful commercialization of that product candidate. In certain jurisdictions, regulatory authorities may not approve the price we intend to charge for our products. Any of the foregoing scenarios could materially harm the commercial prospects for our product candidates.

We cannot be certain that any of our product candidates will be successful in clinical trials or receive regulatory approval. Further, our product candidates may not receive regulatory approval even if they are successful in clinical trials. If we do not receive regulatory approvals for our product candidates, we may not be able to continue our operations. Even though we have successfully obtained regulatory approval for filgotinib in several jurisdictions and even if we successfully obtain regulatory approvals to market one or more of our product candidates, our revenues will be dependent, to a significant extent, upon the size of the markets in the territories for which we gain regulatory approval and have commercial rights or share in revenues from the exercise of such rights. If the markets for patient subsets that we are targeting (such as UC) are not as significant as we estimate, we may not generate significant revenues from sales of such products, if approved.

Additionally, as of May 26, 2021, the FDA noted it is continuing to ensure timely reviews of applications for medical products during the COVID-19 pandemic in line with its user fee performance goals; however, the FDA may not be able to continue its current pace and approval timelines could be extended, including where a pre-approval inspection or an inspection of clinical sites is required and due to the COVID-19 pandemic and travel restrictions the FDA is unable to complete such required inspections during the review period.

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In connection with our global clinical trials, local regulatory authorities may have differing perspectives on clinical protocols and safety parameters, which impacts the manner in which we conduct these global clinical trials and could negatively impact our chances for obtaining regulatory approvals or marketing authorization in these jurisdictions, or for obtaining the requested label or dosage for our product candidates, if regulatory approvals or marketing authorizations are obtained.

In connection with our global clinical trials, we are obligated to comply with the requirements of local regulatory authorities in each jurisdiction where we execute and locate a clinical trial. Local regulatory authorities can request specific changes to the clinical protocol or specific safety measures that differ from the positions taken in other jurisdictions. For example, filgotinib received approval in RA from the EMA in the European Union, the MHRA in Great Britain, and the MHLW in Japan, yet a complete response letter, or CRL, from the FDA in the United States. The FDA, EMA, the MHRA, and MHLW will receive the full data from the MANTA and MANTA-RAy male semen parameter studies conducted in parallel to the FINCH Phase 3 program in RA. We cannot assure you that the same view of the MANTA and MANTA-RAy results will be adopted by regulatory authorities at the marketing authorization stage, now that filgotinib received marketing authorization in the EEA, Great Britain, and Japan for RA, and in the EEA, and Great Britain for UC. The FDA or other regulatory authorities may approve different labels, including for whom the drug is indicated or require different warnings or precautions, or impose dosing restrictions that differ from the approved dosing regimen in other jurisdictions, and these differences could have a material adverse effect on our ability to commercialize our products in these jurisdictions. Regulatory authorities could also not approve our applications, which would adversely affect our business prospects and ability to achieve or sustain profitability.

Even if we receive regulatory approval for any of our product candidates, we will be subject to ongoing obligations and continued regulatory review, which may result in significant additional expense. Additionally, our product candidates, if approved, could be subject to labeling and other restrictions and market withdrawal and we may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with our products.

Any regulatory approvals that we receive for our product candidates may also be subject to limitations on the approved indicated uses for which the product may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including Phase 4 clinical trials, and surveillance to monitor the safety and efficacy of the product, and we may be required to include labeling that includes significant use or distribution restrictions or significant safety warnings, including boxed warnings.

If the FDA, EMA, the MHRA, the MHLW, or any other comparable regulatory authority approves any of our product candidates, the manufacturing processes, labeling, packaging, distribution, adverse event reporting, storage, advertising, promotion and recordkeeping for the product will be subject to extensive and ongoing regulatory requirements. These requirements include submissions of safety and other post-marketing information and reports, registration requirements and continued compliance with current good manufacturing practices, or cGMPs, and good clinical practices, or GCPs, for any clinical trials that we conduct post-approval. Manufacturers and other parties involved in the drug supply chain for prescription drug and biological products must also comply with product tracking and tracing requirements and for notifying the FDA of counterfeit, diverted, stolen and intentionally adulterated products or products that are otherwise unfit for distribution in the United States. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency, or with our third-party manufacturers or manufacturing processes, or failure to comply with regulatory requirements, may result in, among other things:

• restrictions on the marketing or manufacturing of the product, withdrawal of the product from the market, or voluntary or mandatory product recalls;

• fines, untitled or warning letters or holds on clinical trials;

• refusal by the FDA, the EMA, the MHLW, or any other comparable regulatory authority to approve pending applications or supplements to approved applications filed by us, or suspension or revocation of product approvals or licenses;

• product seizure or detention, or refusal to permit the import or export of products; and

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• injunctions or the imposition of civil or criminal penalties.

For example, the Medicines and Healthcare products Regulatory Agency of the United Kingdom has assigned a black triangle to filgotinib, indicating that it is on a list of medicines subject to additional monitoring. Additionally, the EMA recently announced that its Pharmacovigilance Risk Assessment Committee (PRAC), the EMA’s safety committee, has started a safety review of JAK inhibitors used to treat certain chronic inflammatory disorders, including filgotinib. This safety study is intended to investigate whether certain serious risks associated with the JAK inhibitors Xeljanz (tofacitinib) and Olumiant (baricitinib) are associated with all JAK inhibitors authorized in the EU for the treatment of inflammatory disorders. Further, while we and Gilead elected in 2020 not to pursue approval and commercialization of filgotinib in the U.S., in 2021, the FDA announced that following completion of its review of a safety study of Xeljanz (tofacitinib), it would require revisions to the Boxed Warning, the FDA’s most prominent warning, for Xeljanz and certain other JAK inhibitors that are the subject of the EMA’s current review to include information about the risks of serious heart-related events, cancer, blood clots and death. It is unknown at this time whether the results of the EMA’s safety review will result in amendments to the marketing authorization for filgotinib, what other additional requirements the EMA may put in place with respect to the development of JAK inhibitors generally, or what consequences other future actions by the EMA and other comparable regulatory authorities may have on the prospects for filgotinib and other JAK inhibitors. Delays or adverse developments or results or perceived adverse developments or results relating to the EMA’s review could harm our business and could cause the price of our securities to fall. Examples of such adverse developments include, but are not limited to:

● The EMA and/or other regulatory authorities determining that additional non-clinical or clinical studies, or JAK class-based warnings, are required with respect to filgotinib and other JAK inhibitors;

● Safety, efficacy or other concerns relating to filgotinib and other JAK inhibitors;

● Decreased acceptance of filgotinib and other JAK inhibitors by patients, the medical community, and healthcare payors;

● Changes in EMA policy or guidance regarding filgotinib and other JAK inhibitors; and

● In serious cases, the PRAC can recommend following a safety study that the marketing authorization for a product should be suspended or revoked.

The policies of the FDA, the EMA, the MHRA, the MHLW, and other comparable regulatory authorities may change, and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our product candidates. If we are slow or unable to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained, which would adversely affect our business, prospects and ability to achieve or sustain profitability.

Filgotinib may be subject to box warnings, labeling restrictions or dose limitations in certain jurisdictions, which could have a material adverse impact on our ability to market filgotinib in these jurisdictions.

Based on preclinical findings, we expect that filgotinib, if approved in the U.S. or in other jurisdictions, may have a labeling statement warning female patients of childbearing age to take precautionary measures of birth control to protect against pregnancy. In animal toxicology studies in the preclinical phase, filgotinib at an exposure dose above the approved dose in humans induced adverse effects on semen parameters. We and Gilead are conducting dedicated male semen analysis studies in CD and UC patients (MANTA) and in RA, psoriatic arthritis, or PsA, and ankylosing spondylitis, or AS, patients (MANTA-RAy). In the EU, Great Britain, and Japan where filgotinib has been approved for RA, and in the EU and Great Britain for UC, those regulatory authorities could impose new labeling or other requirements upon learning of new information related to filgotinib.

Even if filgotinib receives regulatory approval or marketing authorization, the FDA or other regulatory authorities may impose dosing restrictions that differ from the approved dosing regimens in other jurisdictions.

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Box warnings, labeling restrictions, dose limitations and similar restrictions on use could have a material adverse effect on our ability to commercialize filgotinib in those jurisdictions where such restrictions apply.

Clinical development is a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials as well as data from any interim analysis of ongoing clinical trials may not be predictive of future trial results or an approved label for clinical use. Clinical failure can occur at any stage of clinical development.

Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can occur at any time during the clinical trial process. Although product candidates may demonstrate promising results in early clinical (human) trials and preclinical (animal) studies, they may not prove to be effective in subsequent clinical trials. For example, testing on animals may occur under different conditions than testing in humans and therefore the results of animal studies may not accurately predict human experience. Likewise, early clinical studies may not be predictive of eventual safety or effectiveness results in larger-scale pivotal clinical trials. The results of preclinical studies and previous clinical trials as well as data from any interim analysis of ongoing clinical trials of our product candidates, as well as studies and trials of other products with similar mechanisms of action to our product candidates, may not be predictive of the results of ongoing or future clinical trials. For example, the positive results generated to date in preclinical studies and Phase 1, Phase 2 and Phase 3 clinical trials for filgotinib in RA and UC and in the Phase 2 clinical trials for CD do not ensure that later clinical trials, including any post-approval clinical trials for approved products, will continue to demonstrate similar results or observations, including the Phase 3 studies in CD, currently ongoing. Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy traits despite having progressed through preclinical studies and earlier clinical trials. In addition to the safety and efficacy traits of any product candidate, clinical trial failures may result from a multitude of factors including flaws in trial design, dose selection, placebo effect and patient enrollment criteria. A number of companies in the pharmaceutical industry have suffered significant setbacks in advanced clinical trials due to lack of efficacy or adverse safety profiles, notwithstanding promising results in earlier trials, and it is possible that we will as well. Based upon negative or inconclusive results, we or our collaboration partners may decide, or regulators may require us, to conduct additional clinical trials or preclinical studies. In addition, data obtained from trials and studies are susceptible to varying interpretations, and regulators may not interpret our data as favorably as we do, which may delay, limit or prevent regulatory approval.

We may experience delays in our ongoing clinical trials and we do not know whether planned clinical trials will begin on time, need to be redesigned, enroll patients on time or be completed on schedule, if at all. Clinical trials can be delayed for a variety of reasons, including delays related to:

• obtaining regulatory authorization to commence a trial;

• reaching agreement on acceptable terms with prospective contract research organizations, or CROs, and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;

• obtaining Institutional Review Board, or IRB, or ethics committee approval at each site;

• obtaining regulatory concurrence on the design and parameters for the trial;

• obtaining approval for the designs of our clinical development programs for each country targeted for trial enrollment;

• recruiting suitable patients to participate in a trial, which may be impacted by the number of competing trials that are enrolling patients;

• having patients complete a trial or return for post-treatment follow-up;

• clinical sites deviating from trial protocol or dropping out of a trial;

• adding new clinical trial sites;

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• manufacturing sufficient quantities of product candidate or obtaining sufficient quantities of comparator drug for use in clinical trials;

• the availability of adequate financing and other resources;

• the ongoing COVID-19 pandemic; or

• the ongoing armed conflict between Russia and Ukraine, and sanctions against Russia.

We could encounter delays if a clinical trial is suspended or terminated by us, our collaboration partners, by the IRBs or ethics committees of the institutions in which such trials are being conducted, or by the FDA, the EMA, the MHRA, MHLW, or other comparable regulatory authorities, or recommended for suspension or termination by the Data Monitoring Committee, or the DMC, for such trial. A suspension or termination, including in some cases a clinical hold, may be imposed due to a number of factors, including failure to conduct the clinical trial in accordance with regulatory requirements or our clinical protocols, inspection of the clinical trial operations or trial site by the FDA, the EMA, the MHRA, MHLW, or other comparable regulatory authorities, safety issues or adverse side effects, including those seen in the class to which our product candidates belong, failure to demonstrate a benefit from using a drug, changes in governmental regulations or administrative actions, manufacturing issues or lack of adequate funding to continue the clinical trial. For example, it is possible that safety issues or adverse side effects could be observed in trials for filgotinib in RA, UC, and CD; for GLPG3667, GLPG0555, GLPG3121 or GLPG4399 in inflammation, for GPG4716 in lung fibrosis, and for GLPG2737 in ADPKD, which could result in a delay, suspension or termination of the ongoing trials of filgotinib (in one or more indications), GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121, and GLPG4399. If we experience delays in the completion of, or experience a termination of, any clinical trial of our product candidates, the commercial prospects of our product candidates will be harmed, and our ability to generate product revenues from any of these product candidates will be delayed or prevented. In addition, any delays in completing our clinical trials will increase our costs, slow down our product candidate development and approval process and jeopardize our ability to commence product sales and generate revenues. Any of these occurrences may harm our business, financial condition and prospects significantly. In addition, many of the factors that cause or lead to a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

If filgotinib in CD, GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121, or GLPG4399, or any other product candidate is found to be unsafe or lack efficacy, we will not be able to obtain regulatory approval for it and our business would be materially harmed.

In some instances, there can be significant variability in safety and/or efficacy results between different trials of the same product candidate due to numerous factors, including changes in trial protocols, differences in composition of the patient populations, adherence to the dosing regimen and other trial protocols and the rate of dropouts among clinical trial participants. We do not know whether any Phase 2, Phase 3, or other clinical trials we or any of our collaboration partners may conduct will demonstrate consistent or adequate efficacy and safety to obtain regulatory approval to market our product candidates. If we are unable to bring any of our current or future product candidates to market, our ability to create long-term shareholder value will be limited.

We initiated our first clinical study in 2009, and for 15 of our compounds with novel modes of action, Phase 2 studies were initiated. Phase 3 studies in RA, UC, and CD were initiated by our collaboration partner Gilead for filgotinib.

The rates at which we complete our scientific studies and clinical trials depend on many factors, including, but not limited to, patient enrollment.

Patient enrollment, a significant factor in the timing of clinical trials, is affected by many factors including the size and nature of the patient population, the proximity of patients to clinical sites, the eligibility criteria for the trial, the design of the clinical trial, competing clinical trials and clinicians’ and patients’ perceptions as to the potential advantages of the product candidate being studied in relation to other available therapies, including any new drugs that may be approved for the indications we are investigating.

Furthermore, our efforts to build relationships with patient communities may not succeed, which could result in delays in patient enrollment in our clinical trials. In addition, any negative results we may report in clinical trials of our

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drug candidate may make it difficult or impossible to recruit and retain patients in other clinical trials of that same drug candidate. Delays in the completion of any clinical trial of our product candidates will increase our costs, slow down our product candidate development and approval process and delay or potentially jeopardize our ability to commence product sales and generate revenue. In addition, some of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

We may not be successful in our efforts to use and expand our novel target discovery platform to build a pipeline of product candidates.

A key element of our strategy is to use and expand our novel target discovery platform to build a pipeline of product candidates and progress these product candidates through clinical development for the treatment of a variety of diseases. Although our research and development efforts to date have resulted in a pipeline of product candidates directed at various diseases, we may not be able to develop product candidates that are safe and effective. Even if we are successful in continuing to build our pipeline, the potential product candidates that we identify may not be suitable for clinical development, including as a result of being shown to have harmful side effects or other characteristics that indicate that they are unlikely to be product candidates that will receive marketing approval and achieve market acceptance. If we do not continue to develop successfully and to commercialize products, we will face difficulty in obtaining product revenues in future periods, which could result in significant harm to our financial position and adversely affect the price of the ADSs or our ordinary shares.

We face significant competition for our drug discovery and development efforts, and if we do not compete effectively, our commercial opportunities will be reduced or eliminated.

The biotechnology and pharmaceutical industries are intensely competitive and subject to rapid and significant technological change. Our drug discovery and development efforts may target diseases and conditions that are already addressed by existing therapies or by product candidates that are being developed by our competitors, many of which have substantially greater resources, larger research and development staffs and facilities, more experience in completing preclinical testing and clinical trials, and more or better formulation, marketing and manufacturing capabilities than we do. As a result of these resources, our competitors may develop drug products that render our products obsolete or noncompetitive by developing more effective drugs or by developing their products more efficiently. Our ability to develop competitive products would be limited if our competitors succeed in obtaining regulatory approvals for product candidates more rapidly than we are able to or in obtaining patent protection or other intellectual property rights that limit our drug development efforts. We depend upon our management team to develop and successfully implement strategies for us to obtain regulatory approvals for our selected product candidates more speedily than our competitors and to obtain and maintain patent protection and other intellectual property rights that protect our drug development efforts. Any drug products resulting from our research and development efforts, or from our joint efforts with collaboration partners or licensees, might not be able to compete successfully with our competitors’ existing and future products, or obtain regulatory approval in the United States, European Union or elsewhere. Further, we may be subject to additional competition from alternative forms of treatment, including generic or over-the-counter drugs.

In the field of RA, therapeutic approaches have traditionally relied on DMARDS such as MTX and sulphasalazine as first-line therapy. These oral drugs work primarily to suppress the immune system and, while effective in this regard, the suppression of the immune system leads to an increased risk of infections and other side effects. Accordingly, in addition to DMARDS, monoclonal antibodies targeting TNF, like AbbVie’s Humira, or IL-6 like Roche’s Actemra, have been developed. These biologics, which must be delivered via injection, are currently the standard of care as first-line and second-line therapies for RA patients who have an inadequate response to DMARDS. In November 2012, Xeljanz, marketed by Pfizer, was approved by the FDA as an oral treatment of adult patients with RA who have had an inadequate response to, or who are intolerant to, MTX. Xeljanz was approved by the EMA in 2017. Olumiant, a once-daily JAK1/2 inhibitor, marketed by Lilly, was approved by the EMA for RA in 2017 and by the FDA in 2018. A JAK inhibitor called Rinvoq which received approval for use in RA from FDA and EMA in 2019 is marketed by AbbVie. Filgotinib (Jyseleca), developed by us in collaboration with Gilead, is a preferential JAK1 inhibitor approved in 2020 for use in RA in European Union, Great Britain and Japan. We expect that Jyseleca will compete with all of these therapies now that it is marketed. If generic or biosimilar versions of these therapies are approved, we would also expect to compete against these versions of the therapies.

In the field of IBD, first line therapies are oral (or local) treatments with several low-cost generic compounds such as mesalamine, more effective in UC, and azathioprine, more effective in CD. Steroids such as budesonide are used in

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both UC and CD. For more advanced therapy, monoclonal antibodies with various targets such as TNF and more recently, integrins such as vedolizumab (Entyvio, marketed by Takeda) are approved. We are also aware of other biologics currently approved or in clinical development for these indications, such as ustekinumab (Stelara), developed by Johnson & Johnson, which is approved for UC and UV, and risankizumab (Skyrizi), developed by AbbVie under regulatory review for CD and under development for UC. Celgene/BMS has a new oral therapy, ozanimod (Zeposia), approved in UC and in Phase 3 in CD. Pfizer’s Xeljanz was approved by the FDA for UC in 2018. Filgotinib (Jyseleca) was approved in 2021 by the EC for UC and currently in Phase 3 for CD. Abbvie’s Rinvoq is under regulatory review for UC and is currently in a Phase 3 trial in CD. The number of treatments for UC and CD presents a substantial level of competition for any new treatment entering the IBD market. We expect that Jyseleca will compete with all of these therapies now marketed for UC, and when marketed for CD. If generic or biosimilar versions of these therapies are approved, we would also expect to compete against these versions of the therapies.

In the field of Pso, patients with mild to moderate disease are often treated with corticosteroids or other conventional topical therapies such as Vitamin D, retinoids or light therapy. Patients with moderate to severe psoriasis or who do not respond well to conventional therapies are advised to switch to oral drugs or injectables to reduce skin inflammation. These therapies include methotrexate, or more effective biologics such as adalimumab (Humira), infliximab (Remicade), etanercept (Enbrel), ustekinumab (Stelara), certolizumab pegol (Cimzia), secukinumab (Cosentyx), brodalumab (Siliq), infliximab (Avsola/Inflectra/Renflexis), ixekizumab (Talz), guselkumab (Tremfya), risankizumab (Skyrizi). When severe psoriasis is not adequately treated, patients can develop PsA. In the field of PsA, similar treatments as for Pso are used; infliximab (Avsola/Inflectra/Renflexis), certolizumab pegol (Cimzia), abatacept (Orencia), golimumab (Simponi), ustekinumab (Stelara), ixekizumab (Taltz) and guselkumab (Tremfya). Oral medication used for PsA is tofacitinib (Xeljanz) and upadacitinib (Rinvoq) is approved by the EMA and FDA.

In the field of SLE, anti-inflammatory drugs like NSAIDS, corticosteroids, and methotrexate are commonly used to treat lupus symptoms such as fever, arthritis and pleurisy. Belimumab (Benlysta) and recently anifrolumab (Saphnelo) are the only approved drug to treat SLE, and help control disease activity. Voclosporin (Lupkynis) from Aurinia was approval for treatment of lupus nephritis by the FDA and EC. BIIB059 from Biogen, dapirolizumab pegol from UCB/Biogen and obinutuzumab (Gazyva) from Roche are in Phase 3. In terms of oral medication, tofacitinib (Xeljanz) and upadacitinib (Rinvoq) are in Phase 2.

In the field of Sjögren’s syndrome, cevimeline (Evoxac®) is the only approved drug available.

In the field of AS, therapies approved by FDA and the EC are etanercept (Enbrel), infliximab (Remicade), adalimumab (Humira), golimumab (Simponi), certolizumab (Cimzia), secukinumab (Cosentyx), ixekizumab (Taltz), tofacitinib (Xeljanz) and upadacitinib (Rinvoq). Despite the availability of these treatments, a significant number of AS patients do not achieve low disease activity today.

In the field of OA, there are currently no disease-modifying drugs approved. Current treatment involves weight loss, physical therapy, prednisolone, non-steroidal anti-inflammatory drugs, and pain management. Medivir announced in September 2017 that a Phase 2 trial in patients with knee OA with MIV-711, a cathepsin K inhibitor, demonstrated structural benefit. Sprifermin, a novel recombinant human fibroblast growth factor 18, was developed by Merck KGaA and outlicensed to TrialSpark/High Line Bio. In a Phase 2 trial published in 2018, sprifermin showed to be effective at increasing cartilage thickness in a dose-dependent manner in knee OA patients, with an acceptable safety profile. Biosplice Therapeutics (formerly Samumed) is conducting a Phase 3 program with lorecivivint, an intra-articular approach aimed at the wnt pathway in OA joints. Novartis in-licensed a Phase 2 ready drug M6495 (also ALX-1141 developed as part of an agreement between Merck and Ablynx, which is now a subsidiary of Sanofi), a nanobody aimed at ADAMTS-5, but its status is unknown at the time of the publication. Novartis is as well conducting a Phase 2 study in knee osteoarthritis with LNA043, a ANGPTL3 agonist.

In the field of IPF, there are two approved disease modifying drugs, pirfenidone (Esbriet), marketed by Roche, and nintedanib (Ofev), marketed by Boehringer Ingelheim. These drugs are not well tolerated by patients and prolong life for IPF patients by a matter of months, leaving an unmet medical need for those developing disease-modifying drugs in this field. Fibrogen is running Phase 3 trials with pamrevlumab (anti-CTGF antibody) in IPF patients. Roche has a late-stage contender, RG6354, in Phase 3 for IPF gained through the acquisition of Promedior. PLN-74809 is a αvβ6 and αvβ1 integrin inhibitor from Pliant Therapeutics in Phase 2 for IPF. BI 1015550 (PDE4 inhibitor) from Boehringer Ingelheim, CC-90001 (JNK1 inhibitor) from BMS, Saracatinib (Src kinase inhibitor) from Astrazeneca, GB0139 (TD139)

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(Galectin-3 inhibitor) from Galecto Biotech, VP01 (AT2 agonist) from Vicore Pharma, BMS-986278 (LPA1 antagonist) from BMS, Setanaxib (GKT831) (NOX1&4 inhibitor) from Calliditas/Genkyotex are all in Phase 2 for IPF.

In the field of ADPKD, there is currently no cure. Symptoms like high blood pressure, pain and kidney stones are treated with conventional medication. In 2018, a first drug tolvaptan (Jynarque, Samsca, marketed by Otsuka) to slow down the growth of kidney cysts was approved for patients with rapidly progressing, chronic kidney disease. Bardoxolone from Reata Pharmaceuticals and lixivaptan from Palladio Biosciences are in Phase 3, tesevatinib from Kadmon Corporation and oxypurinol from Xortx Therapeutics are in Phase 2 development. RGLS4326 from Regulus Therapeutics, ANG-3070 from Angion Biomedical and Ricolinostat from BMS is currently being tested in a Phase 1 trial in ADPKD.

Many of our competitors have significantly greater financial, technical, and human resources than we have. Mergers and acquisitions in the pharmaceutical, medical device and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Our commercial opportunity could be reduced or eliminated if our competitors develop or market products or other novel therapies that are more effective, safer, or less costly than our current or future product candidates, or obtain regulatory approval for their products more rapidly than we may obtain approval for our product candidates. Our success will be based in part on our ability to identify, develop, and manage a portfolio of product candidates that are safer and more effective than competing products.

Our product candidates may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval, limit the commercial profile of an approved label, or result in significant negative consequences following marketing approval, if any.

Undesirable side effects caused by our product candidates could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA, the EMA, the MHRA, the MHLW, or other comparable regulatory authorities. Results of our trials could reveal a high and unacceptable severity and prevalence of certain side effects. In such an event, our trials could be suspended or terminated and the FDA, the EMA, the MHRA, the MHLW, or comparable regulatory authorities could order us to cease further development of or deny approval of our product candidates for any or all targeted indications. The drug-related side effects could affect patient recruitment or the ability of enrolled patients to complete the trial or result in potential product liability claims. Any of these occurrences may harm our business, financial condition and prospects significantly.

For example, the ISABELA Phase 3 trials in IPF were discontinued in February 2021, prior to recruitment completion. The decision was based on the recommendations of the Independent Data Monitoring Committee (IDMC) which, following a regular review of unblinded data, concluded that ziritaxestat’s benefit-risk profile no longer supported continuing these studies.

If one or more of our product candidates receives marketing approval, and we or others later identify undesirable side effects caused by such products, a number of potentially significant negative consequences could result, including:

● regulatory authorities may withdraw approvals of such product;

● regulatory authorities may require additional warnings on the label;

● we may be required to create a medication guide outlining the risks of such side effects for distribution to patients;

● we could be sued and held liable for harm caused to patients; and

● our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of the particular product candidate, if approved, and could significantly harm our business, results of operations and prospects.

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Our future clinical trials or those of any of our collaborators may reveal significant adverse events not seen in our preclinical studies or earlier clinical trials and result in a safety profile that could inhibit regulatory approval or market acceptance of any of our product candidates.

If significant adverse events or other side effects are observed in any of our clinical trials, we may have difficulty recruiting patients to our clinical trials, patients may drop out of our trials, we may be required to pause, delay, or abandon the trials or our development efforts of one or more product candidates altogether, we may be required to have more restrictive labeling, or we may experience the delay or denial of regulatory approval by the FDA, EMA, MHRA, the MHLW, or other applicable regulatory authorities. We, the FDA, or other applicable regulatory authorities, or an IRB may suspend clinical trials of a product candidate at any time for various reasons, including a belief that subjects or patients in such trials are being exposed to unacceptable health risks or adverse side effects. Some potential therapeutics developed in the biotechnology industry that initially showed therapeutic promise in early-stage trials have later been found to cause adverse events or other side effects that prevented their further development. Even if any such adverse events or other side effects do not preclude the product candidate from obtaining or maintaining marketing approval, undesirable side effects may inhibit market acceptance of the approved product due to its tolerability versus other therapies.

Risks related to our financial position and need for additional capital

We have no historical product revenues, which makes it difficult to assess our future prospects and financial results.

Pharmaceutical product development is a highly speculative undertaking and involves a substantial degree of uncertainty. Our operations to date have been generally limited to developing our technology and undertaking preclinical studies and clinical trials of our product candidates, currently including filgotinib in CD, GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121 or GLPG4399. We may not have the ability to overcome many of the risks and uncertainties frequently encountered by companies in new and rapidly evolving fields, particularly in the pharmaceutical area. Consequently, the ability to predict our future operating results or business prospects is more limited than if we had a longer operating history or approved products on the market.

With the exception of the year ended December 31, 2019, we have incurred significant losses since our inception and anticipate that we will continue to incur significant losses for the foreseeable future.

With the exception of the year ended December 31, 2019, we have incurred significant operating losses since our inception in 1999. We reported net income of €149.8 million for the year ended December 31, 2019, net losses of €305.4 million for the year ended December 31, 2020, and net losses of €103.2 million for the year ended December 31, 2021. Our prior losses, combined with expected future losses, have had and will continue to have an adverse effect on our shareholders’ equity and working capital. We expect to continue incurring significant research, development, and other expenses related to our ongoing operations, and to continue incurring operating losses for the foreseeable future.

We cannot be sure that we will generate significant revenues from sales of products for the foreseeable future. If any of our product candidates fail in clinical trials or do not gain regulatory approval, or if any of our product candidates, if approved, fail to achieve market acceptance, we may never become profitable. Even if we achieve profitability in the future, we may not be able to sustain profitability in subsequent periods.

If one or more of our product candidates is approved for commercial sale and we retain commercial rights, we anticipate incurring significant costs associated with commercializing any such approved product candidate. Additionally, we may not achieve significant revenues from sales of products. Therefore, even if we are able to generate revenues from the sale of any approved product, we may not become profitable.

We may require substantial additional funding, which may not be available to us on acceptable terms, or at all.

Our operations have consumed substantial amounts of cash since inception. We are currently conducting clinical trials for filgotinib in CD, GLPG2737, GLPG3667, GLPG4716, GLPG0555, GLPG3121, GLPG4399, and other product candidates. Developing pharmaceutical product candidates, including conducting clinical trials, is expensive. We will require substantial additional future capital in order to complete clinical development and, if we are successful, to commercialize any of our current product candidates. If the FDA, or any other comparable regulatory agency, such as the EMA, requires that we perform studies or trials in addition to those that we currently anticipate with respect to the

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development of our product candidates, or repeat studies or trials, our expenses would further increase beyond what we currently expect, and any delay resulting from such further or repeat studies or trials could also result in the need for additional financing and other resources.

Our existing current financial investments and cash and cash equivalents may not be sufficient for us to complete advanced clinical development of our product candidates or, if applicable, to commercialize product candidates that would be approved. Accordingly, we may continue to require substantial additional capital to continue our clinical development activities and potentially engage in commercialization activities. Because successful development of our product candidates is uncertain, we are unable to estimate the actual funds we will require to complete research and development and commercialize our product candidates. The amount and timing of our future funding requirements will depend on many factors, including but not limited to:

● the progress, costs, results of and timing of our ongoing and planned clinical trials;

● our ability to reach milestones under our existing collaboration arrangements and enter into additional collaborative agreements for the development and commercialization of our product candidates;

● the willingness of the FDA, EMA, the MHRA, the MHLW, and other comparable regulatory authorities to accept our clinical trials and preclinical studies and other work as the basis for review and approval of product candidates;

● the outcome, costs and timing of seeking and obtaining regulatory approvals from the FDA, EMA, the MHRA, the MHLW, and other comparable regulatory authorities;

● whether our collaboration partners continue to collaborate with us on the development and commercialization of our product candidates;

● the number of product candidates and indications that we pursue, whether developed from our novel target discovery platform, otherwise developed internally or in-licensed;

● the timing and costs associated with manufacturing our product candidates for clinical trials and other studies and, if approved, for commercial sale;

● our need to expand our development activities and, potentially, our research activities;

● the timing and costs associated with establishing sales and marketing capabilities;

● the costs associated with the our existing and future product sales, marketing, commercial manufacturing, and distribution activities;

● market acceptance of any approved product candidates;

● the costs of acquiring, licensing or investing in additional businesses, products, product candidates and technologies;

● the cost to maintain, expand and defend the scope of our intellectual property portfolio, including the amount and timing of any payments we may be required to make, or that we may receive, in connection with licensing, filing, prosecution, defense and enforcement of any patents or other intellectual property rights;

● the extent to which we may be required to pay milestone or other payments under our in-license agreements and the timing of such payments;

● our need and ability to hire additional management, development and scientific personnel; and

● our need to implement additional internal systems and infrastructure, including financial and reporting systems.

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Some of these factors are outside of our control. Based upon our current expected level of operating expenditures and our existing current financial investments and cash and cash equivalents, we believe that we will be able to fund our operating expenses and capital expenditure requirements for the coming years. This period could be shortened, but not below a period of 12 months, if there are any significant increases beyond our expectations in spending on development programs or more rapid progress of development programs than anticipated. Accordingly, we expect that we could need to raise additional funds in the future. Additional funding may not be available to us on acceptable terms, or at all. If we are unable to obtain funding from equity offerings or debt financings, including on a timely basis, we may be required to:

● seek additional collaboration partners for one or more of any future proprietary product candidates at an earlier stage than otherwise would be desirable or on terms that are less favorable than might otherwise be available;

● relinquish or license on unfavorable terms our rights to technologies or any future proprietary product candidates that we otherwise would seek to develop or commercialize ourselves;

● significantly curtail one or more of our research or development programs;

● curtail our product sales, marketing, commercial manufacturing, and

● cease operations altogether.

Raising additional capital may cause dilution to our existing shareholders, restrict our operations or require us to relinquish rights to our product candidates or technologies.

We may seek additional funding through a combination of equity offerings, debt financings, collaborations and/or licensing arrangements. To the extent that we raise additional capital through the sale of equity or convertible debt securities, your ownership interest will be diluted, and the terms may include liquidation or other preferences that adversely affect your rights as a holder of the ADSs or our ordinary shares. The incurrence of indebtedness and/or the issuance of certain equity securities could result in increased fixed payment obligations and could also result in certain additional restrictive covenants, such as limitations on our ability to incur additional debt and/or issue additional equity, limitations on our ability to acquire or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business. In addition, issuance of additional equity securities, or the possibility of such issuance, may cause the market price of the ADSs or our ordinary shares to decline. In the event that we enter into collaborations and/or licensing arrangements in order to raise capital, we may be required to accept unfavorable terms, including relinquishing or licensing to a third party on unfavorable terms our rights to technologies or product candidates that we otherwise would seek to develop or commercialize ourselves or potentially reserve for future potential arrangements when we might be able to achieve more favorable terms.

Risks related to our reliance on third parties

We are heavily dependent upon our collaboration arrangements with Gilead and certain other third parties for the development and commercialization of our products and there can be no assurance that these arrangements will deliver the benefits we expect.

In July 2019, we entered into a 10-year global research and development collaboration with Gilead. In connection with our entry into the option, license and collaboration agreement, we received an upfront payment of $3.95 billion and a €960 million ($1.1 billion) equity investment from Gilead. Under the option, license and collaboration agreement, we will fund and lead all discovery and development autonomously until the end of the relevant Phase 2 clinical study. After the completion of a qualifying Phase 2 clinical study (or in certain circumstances, the first Phase 3 clinical study), Gilead will have the option to acquire an exclusive commercial license to that program in all countries outside of Europe. If the option is exercised, we and Gilead will co-develop the compound and share costs equally. In addition, we are heavily dependent on Gilead for the commercialization of filgotinib and the further development of our product candidate filgotinib outside of Europe. Gilead may not devote sufficient resources or give sufficient priority to the programs in respect of which it acquires a commercial license pursuant to the option, license and collaboration agreement.

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Furthermore, Gilead may not be successful in the commercialization of filgotinib outside of Europe and further development and commercialization of filgotinib or other programs for which it acquires a commercial license, even when they do devote resources and prioritize their efforts for such programs.

In addition, the terms of the collaboration with Gilead and any collaboration or other arrangement that we may establish may not ultimately prove to be favorable to us or may not be perceived as favorable, which may negatively impact the trading price of the ADSs or our ordinary shares. In addition, pursuant to the collaboration with Gilead, we are entitled to certain option payments and tiered royalties and milestones on certain products. There can be no assurance that such payments will be sufficient to cover the cost of development of the relevant product candidates.

We are subject to a number of additional risks associated with our dependence on our collaborations with third parties, the occurrence of which could cause our collaboration arrangements to fail. In particular, the collaboration we entered into in July 2019 is managed by a set of joint committees comprised of equal numbers of representatives from each of us and Gilead. Conflicts may arise between us and Gilead, such as conflicts concerning the interpretation of clinical data, the achievement of milestones, the interpretation of financial provisions or the ownership of intellectual property developed during the collaboration, and there can be no assurance that the joint committees will be able to resolve any such conflicts. If any such conflicts arise, Gilead could act in a manner adverse to our best interests. Any such disagreement could result in one or more of the following, each of which could delay or prevent the development or commercialization of product candidates subject to the collaboration arrangements, and in turn prevent us from generating sufficient revenues to achieve or maintain profitability:

● reductions or delays in the payment of milestone payments, royalties or other payments we believe are due;

● actions taken by Gilead inside or outside our collaboration which could negatively impact our rights or benefits under our collaboration including termination of the collaboration for convenience; or

● unwillingness on the part of Gilead to keep us informed regarding the progress of its development and commercialization activities or regulatory approval or to permit public disclosure of the results of those activities.

In addition to our collaboration with Gilead, we may also enter into future collaborations which will give rise to similar risks, although our ability to enter into such collaborations may be limited given the scale of our collaboration with Gilead.

If our global research and development collaboration with Gilead or other collaborations on research and development candidates do not result in the successful development and commercialization of products or if Gilead or another one of our collaboration partners terminates its agreement with us, we may not receive any future research funding or milestone or royalty payments under the collaboration. If we do not receive the funding we expect under these agreements, our development of our product candidates could be delayed and we may need additional resources to develop product candidates.

The transition of European rights to filgotinib from Gilead to us has been a significant undertaking, the completion of which may require additional substantial financial and managerial resources, and we may not be successful.

We may encounter costs and delays related to completing the transition of the European rights to filgotinib from Gilead to us. Delays or difficulties completing the planned transition could delay or prevent us from realizing its anticipated benefits. We may not complete the separation on the terms or on the timeline that we announced, or may, for any or no reason and at any time until the planned separation is complete, modify or change its terms. Any of the foregoing may result in our not achieving the operational, financial, strategic and other benefits we anticipate, and in each case, our business, results of operations and financial condition could be adversely affected. These challenges could lead to costly administrative procedures, distract management from other business activities, and could have an adverse impact on our financial condition.

We may not be successful in establishing future development and commercialization collaborations, particularly given the scale of our collaborations with Gilead, and this could adversely affect, and potentially prohibit, our ability to develop our product candidates.

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Developing pharmaceutical products, conducting clinical trials, obtaining regulatory approval, establishing manufacturing capabilities and marketing approved products is expensive. Accordingly, we have sought and may in the future seek to enter into collaborations with companies that have more resources and experience. In the future, however, our ability to do so may be limited given the scale of the 10-year global research and development collaboration that we entered into with Gilead in July 2019. If Gilead declines to exercise its option and we are otherwise unable to obtain a collaboration partner for our product candidates, we may be unable to advance the development of our product candidates through late-stage clinical development and seek approval in any market. In situations where we enter into a development and commercial collaboration arrangement for a product candidate, we may also seek to establish additional collaborations for development and commercialization in territories outside of those addressed by the first collaboration arrangement for such product candidate. If any of our product candidates receives marketing approval, we may enter into sales and marketing arrangements with third parties with respect to otherwise unlicensed or unaddressed territories. Furthermore, there are a limited number of potential collaboration partners, and we expect to face competition in seeking appropriate collaboration partners. If we are unable to enter into any development and commercial collaborations and/or sales and marketing arrangements on acceptable terms, or at all, we may be unable to successfully develop and seek regulatory approval for our product candidates and/or effectively market and sell approved products, if any.

We rely on third parties to conduct our preclinical studies and clinical trials. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our product candidates, and our business could be substantially harmed.

We have relied upon and plan to continue to rely upon CROs to monitor and manage data for our preclinical and clinical programs. We rely on these parties for execution of our preclinical studies and clinical trials, and we control only certain aspects of their activities. We and our CROs also rely upon clinical sites and investigators for the performance of our clinical trials in accordance with the applicable protocols and applicable legal and regulatory requirements and scientific standards. Nevertheless, we are responsible for ensuring that each of our studies and trials is conducted in accordance with the applicable protocol and applicable legal and regulatory requirements and scientific standards, and our reliance on CROs as well as clinical sites and investigators does not relieve us of our regulatory responsibilities. We are required to, and do, have mechanisms in place to adequately manage, oversee and control our clinical trials, including selection of CROs, auditing activities, strong focus on set-up (during which deliverables, timelines and roles and responsibilities are defined), and strong oversight during the conduct of clinical trials. We, our CROs, as well as the clinical sites and investigators are required to comply with current Good Clinical Practices (GCPs), which are regulations and guidelines enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area, or EEA, and comparable regulatory authorities for all of our products in clinical development. Regulatory authorities enforce these GCPs through periodic inspections of trial sponsors, investigators and clinical sites. If we, any of our CROs or any of the clinical sites or investigators fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA, EMA, the MHRA, MHLW, or comparable regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot assure you that upon inspection by a given regulatory authority, such regulatory authority will determine that any of our clinical trials comply with GCP regulations. We also cannot assure you that our CROs, as well as the clinical sites and investigators, will perform our clinical trials in accordance with the applicable protocols as well as applicable legal and regulatory requirements and scientific standards, or report the results obtained in a timely and accurate manner. In addition to GCPs, our clinical trials must be conducted with products produced under current Good Manufacturing Practice (cGMP) regulations. While we have agreements governing activities of our CROs, we have limited influence over the actual performance of our CROs as well as the performance of clinical sites and investigators. In addition, significant portions of the clinical trials for our product candidates are and will continue to be conducted outside of Belgium, which will make it more difficult for us to monitor CROs as well as clinical sites and investigators and perform visits of our clinical sites, and will force us to rely heavily on CROs to ensure the proper and timely conduct of our clinical trials in accordance with the applicable protocols and compliance with applicable regulations, including GCPs. Failure to comply with applicable protocols and regulations in the conduct of the clinical trials for our product candidates may require us to repeat clinical trials, which would delay the regulatory approval process. Additionally, the performance of our CROs may also be delayed or disrupted by the ongoing COVID-19 pandemic, including due to travel or quarantine policies, availabilities of staff, exposure of CRO staff to COVID-19 or re-prioritization of CRO resources as a result of the pandemic, or by the ongoing armed conflict between Russia and Ukraine, and sanctions against Russia.

Some of our CROs have an ability to terminate their respective agreements with us if it can be reasonably demonstrated that the safety of the subjects participating in our clinical trials warrants such termination, or as a result of

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data integrity compromise, or if there is reasonable belief that good clinical practice or applicable laws or regulations will be materially violated, or if we make a general assignment for the benefit of our creditors, or if we are liquidated.

If any of our relationships with these CROs terminate, we may not be able to enter into arrangements with alternative CROs or to do so on commercially reasonable terms. In addition, our CROs are not our employees, and except for remedies available to us under our agreements with such CROs, we cannot control whether or not they devote sufficient time and resources to our preclinical and clinical programs. If CROs do not carry out their contractual duties or obligations successfully or meet expected deadlines, if they need to be replaced, or if the quality or accuracy of the clinical data they obtain is compromised due to the failure (including by clinical sites or investigators) to adhere to our clinical protocols, regulatory requirements or for other reasons, our clinical trials may be extended, delayed or terminated and we may not be able to obtain regulatory approval for or successfully commercialize our product candidates. As a result, our results of operations and the commercial prospects for our product candidates would be harmed, our costs could increase substantially and our ability to generate revenues could be delayed significantly.

Switching or adding additional CROs involves additional cost and requires management time and focus. In addition, there is a natural transition period when a new CRO commences work. As a result, delays may occur, which can materially impact our ability to meet our desired clinical development timelines. Though we carefully manage our relationships with our CROs, there can be no assurance that we will not encounter challenges or delays in the future or that these delays or challenges will not have a material adverse impact on our business, financial condition and prospects.

We rely completely on third parties to manufacture our preclinical and clinical drug supplies and to produce commercial supplies of any approved product.

We do not currently have, nor do we plan to acquire, the infrastructure or capability internally to manufacture our drug supply for our approved products or preclinical and clinical drug supplies. This reliance on third parties increases the risk of shortages of our drugs or drug candidates and of the availability of such drugs or drug candidates at an acceptable cost or quality. This could potentially delay, prevent or impair our development and commercialization efforts.

If, for any reason, we were to experience an unexpected loss in the supply of any of our approved products, our product candidates or placebo or comparator drug used in certain of our clinical trials, whether as a result of manufacturing, supply or storage issues or otherwise, we could experience delays, disruptions, suspensions or terminations of, or be required to restart or repeat, any pending or ongoing clinical trials or commercial distribution of our approved products could be negatively affected. The facilities used by our contract manufacturers or other third-party manufacturers to manufacture our approved products and our product candidates are subject to the FDA’s, EMA’s, MHRA’s, MHLW’s and other comparable regulatory authorities’ pre-approval inspections that can be conducted after we submit the required approval applications to any relevant regulatory authority, such as, for example, an NDA or BLA to the FDA. We monitor, but do not control, the implementation of the manufacturing process of, but are dependent on, our contract manufacturers or other third-party manufacturers for compliance with cGMP regulatory requirements for manufacture of any drug products. If our contract manufacturers or other third-party manufacturers do not successfully manufacture material that conforms to applicable specifications and the strict regulatory requirements of the FDA, EMA, MHRA, MHLW or others or if such authority finds deficiencies at a contract manufacturer’s facility or is unable to conduct an inspection necessary to evaluate such facility due to delays or disruptions caused by the COVID-19 pandemic, we will not be able to secure and/or maintain regulatory approvals for our products manufactured at these facilities. This could significantly impact our ability to develop, obtain regulatory approval for or market our product candidates, if approved.

We rely on our manufacturers to purchase from third-party suppliers the materials necessary to produce our product candidates for our clinical trials and our approved products. There are a limited number of suppliers for raw materials that we use to manufacture our drugs and there may be a need to assess alternate suppliers to prevent a possible disruption of the manufacture of the materials necessary to produce our product candidates for our clinical trials and our approved products. We do not have any control over the process or timing of the acquisition of raw materials by our manufacturers, and delays may result for reasons beyond our control, including the COVID-19 pandemic.

Moreover, although we have established agreements for commercial production of filgotinib as certain manufacturing obligations are transferred back to us from Gilead, we currently do not have any agreements for the

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commercial production of the underlying raw materials. If our manufacturers or we are unable to purchase these raw materials after regulatory approval has been obtained for our product candidates, the commercial launch of our products would be delayed or there would be a shortage in supply, which would impair our ability to generate revenues from the sale of our products. Additionally, if we receive regulatory approval for our product candidates, we may experience unforeseen difficulties or challenges in the manufacture of our products on a commercial scale compared to the manufacture for clinical purposes.

We expect to continue to depend on contract manufacturers or other third-party manufacturers for the foreseeable future. We recently entered into long-term agreements with some of our historical contract manufacturers and currently obtain our supplies of finished drug product through individual purchase orders which cannot guarantee adequate supplies of finished products. In addition, although we intend to do so in the coming months, we have not yet entered into agreements with any alternate fill/finish suppliers.
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We rely on clinical data and results obtained by third parties that could ultimately prove to be inaccurate or unreliable.

If the third-party data and results we rely upon prove to be inaccurate, unreliable or not applicable to our product candidates, we could make inaccurate assumptions and conclusions about our product candidates and our research and development efforts could be materially adversely affected.

Risks related to our intellectual property

Our ability to compete may decline if we do not adequately protect our proprietary rights.

Our commercial success depends on obtaining and maintaining proprietary rights to filgotinib, any future product, and our current and any future product candidates, as well as successfully defending these rights against third-party challenges. We will only be able to protect our product candidates, and their uses from unauthorized use by third parties to the extent that valid and enforceable patents, or effectively protected trade secrets, cover them. Our ability to obtain patent protection for our product candidates is uncertain due to a number of factors, including:

● we may not have been the first to make the inventions covered by pending patent applications or issued patents;

● we may not have been the first to file patent applications for our product candidates or the compositions we developed or for their uses;

● others may independently develop identical, similar or alternative products or compositions and uses thereof;

● our disclosures in patent applications may not be sufficient to meet the statutory requirements for patentability;

● any or all of our pending patent applications may not result in issued patents;

● we may not seek or obtain patent protection in countries that may eventually provide us a significant business opportunity;

● any patents issued to us may not provide a basis for commercially viable products, may not provide any competitive advantages, or may be successfully challenged by third parties;

● our compositions and methods may not be patentable;

● others may design around our patent claims to produce competitive products which fall outside of the scope of our patents; or

● others may identify prior art or other bases which could invalidate our patents.

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Even if we have or obtain patents covering our product candidates or compositions, we may still be barred from making, using and selling our product candidates or technologies because of the patent rights of others. Others may have filed, and in the future may file, patent applications covering compositions or products that are similar or identical to ours. If a patent owned by a third party covers one of our product candidates or its use, this could materially affect our ability to develop the product candidate or sell the resulting product if approved. Because patent applications are not published until 18 months from their priority date, there may be currently pending applications unknown to us that may later result in issued patents that our product candidates or compositions may infringe. Additionally, because the scope of claims in pending patent applications can change, there may be pending applications whose claims do not currently cover any of our product candidates but may be altered such that one or more of our product candidates are covered when the resulting patent issues. These patent applications may have priority over patent applications filed by us.

Moreover, even if we are able to obtain patent protection, such patent protection may be of insufficient scope to achieve our business objectives. For example, others may be able to develop a product that is similar to, or better than, ours in a way that is not covered by the claims of our patents.

Obtaining and maintaining a patent portfolio entails significant expense and resources. Part of the expense includes periodic maintenance fees, renewal fees, annuity fees, various other governmental fees on patents and/or applications due in several stages over the lifetime of patents and/or applications, as well as the cost associated with complying with numerous procedural provisions during the patent application process. We may or may not choose to pursue or maintain protection for particular inventions. In addition, there are situations in which failure to make certain payments or noncompliance with certain requirements in the patent process can result in abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. If we choose to forgo patent protection or allow a patent application or patent to lapse purposefully or inadvertently, our competitive position could suffer. Moreover, in some circumstances, we do not have the right to control the preparation, filing or prosecution of patent applications, or to maintain the patents, covering technology subject to our collaboration or license agreements with third parties. For example, under our collaboration agreement with Gilead, Gilead controls litigation on our patents for filgotinib in jurisdictions outside the European region and for any optioned programs. Therefore, these patents and patent applications may not be prosecuted or enforced in a manner consistent with the best interests of our business.

Legal actions to enforce our patent rights can be expensive and may involve the diversion of significant management time. In addition, these legal actions could be unsuccessful and could also result in the invalidation of our patents or a finding that they are unenforceable. We may or may not choose to pursue litigation or other actions against those that have infringed on our patents, or used them without authorization, due to the associated expense and time commitment of monitoring these activities. If we fail to protect or to enforce our intellectual property rights successfully, our competitive position could suffer, which could harm our results of operations.

Pharmaceutical patents and patent applications involve highly complex legal and factual questions, which, if determined adversely to us, could negatively impact our patent position.

The patent positions of biotechnology and pharmaceutical companies can be highly uncertain and involve complex legal and factual questions. The interpretation and breadth of claims allowed in some patents covering pharmaceutical compositions may be uncertain and difficult to determine and are often affected materially by the facts and circumstances that pertain to the patented compositions and the related patent claims. The standards of the United States Patent and Trademark Office, or USPTO, the European Patent Office, and other foreign counterparts are sometimes uncertain and could change in the future. Consequently, the issuance and scope of patents cannot be predicted with certainty. Patents, if issued, may be challenged, invalidated or circumvented. Certain U.S. patents and patent applications may also be subject to interference proceedings, and U.S. patents may be subject to reexamination proceedings, post-grant review and/or inter partes review in the USPTO. European patents and other foreign patents may be subject also to opposition or comparable proceedings in the corresponding foreign patent office, which could result in either loss of the patent or denial of the patent application or loss or reduction in the scope of one or more of the claims of the patent or patent application. In addition, such interference, reexamination, post-grant review, inter partes review and opposition proceedings may be costly. Accordingly, rights under any issued patents may not provide us with sufficient protection against competitive products or processes.

In addition, changes in or different interpretations of patent laws in the United States, Europe, and other jurisdictions may permit others to use our discoveries or to develop and commercialize our technology and products

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without providing any compensation to us, or may limit the number of patents or claims we can obtain. The laws of some countries do not protect intellectual property rights to the same extent as U.S. and European laws and those countries may lack adequate rules and procedures for defending our intellectual property rights.

If we fail to obtain and maintain patent protection and trade secret protection of our product candidates, we could lose our competitive advantage and competition we face would increase, reducing any potential revenues and adversely affecting our ability to attain or maintain profitability.

Developments in patent law could have a negative impact on our business.

From time to time, courts and other governmental authorities in the United States, Europe and other jurisdictions may change the standards of patentability and any such changes could have a negative impact on our business.

If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed.

In addition to patent protection, because we operate in the highly technical field of development of therapies, we rely in part on trade secret protection in order to protect our proprietary technology and processes. However, trade secrets are difficult to protect. It is our policy to enter into confidentiality and intellectual property assignment agreements with our employees, consultants, outside scientific collaborators, sponsored researchers, and other advisors. These agreements generally require that the other party keep confidential and not disclose to third parties all confidential information developed by the party or made known to the party by us during the course of the party’s relationship with us. These agreements also generally provide that inventions conceived by the party in the course of rendering services to us will be our exclusive property. However, these agreements may not be honored and may not effectively assign intellectual property rights to us. Adequate remedies may not exist in the event of unauthorized use or disclosure of our confidential information. The disclosure of our trade secrets would impair our competitive position and may materially harm our business, financial condition and results of operations.

In addition to contractual measures, we try to protect the confidential nature of our proprietary information using physical and technological security measures. Such measures may not, for example, in the case of misappropriation of a trade secret by an employee or a third party with authorized access, provide adequate protection for our proprietary information. Our security measures may not prevent an employee or consultant from misappropriating our trade secrets and providing them to a competitor, and recourse we take against such misconduct may not provide an adequate remedy to protect our interests fully. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret can be difficult, expensive, and time-consuming, and the outcome is unpredictable. In addition, courts outside the United States may be less willing to protect trade secrets, with protection varying across Europe and in other countries. Trade secrets may be independently developed by others in a manner that could prevent legal recourse by us. If any of our confidential or proprietary information, such as our trade secrets, were to be disclosed or misappropriated, or if any such information was independently developed by a competitor, our competitive position could be harmed.

We will not seek to protect our intellectual property rights in all jurisdictions throughout the world and we may not be able to adequately enforce our intellectual property rights even in the jurisdictions where we seek protection.

Filing, prosecuting and defending patents on our current and future product candidates in all countries and jurisdictions throughout the world would be prohibitively expensive, and our intellectual property rights in some countries could be less extensive than those in the United States and Europe, assuming that rights are obtained in the United States and Europe. Furthermore, even if patents are granted based on our European patent applications, we may not choose to perfect or maintain our rights in all available European countries. In addition, the laws of some foreign countries do not protect intellectual property rights to the same extent as laws in the United States and Europe. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries, or from selling or importing products made using our inventions. The statutory deadlines for pursuing patent protection in individual foreign jurisdictions are based on the priority dates of each of our patent applications.

Competitors may use our technologies in jurisdictions where we do not pursue and obtain patent protection to develop their own products and further, may export otherwise infringing products to territories where we have patent protection, but enforcement is not as strong as that in the United States and Europe. These products may compete with our products and our patents or other intellectual property rights may not be effective or sufficient to prevent them from

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competing. Even if we pursue and obtain issued patents in particular jurisdictions, our patent claims or other intellectual property rights may not be effective or sufficient to prevent third parties from so competing.

The laws of some foreign countries do not protect intellectual property rights to the same extent as the laws of the United States and Europe. Many companies have encountered significant problems in protecting and defending intellectual property rights in certain foreign jurisdictions. The legal systems of some countries, particularly developing countries, do not favor the enforcement of patents and other intellectual property protection, especially those relating to pharmaceuticals or biotechnologies. This could make it difficult for us to stop the infringement of our patents, if obtained, or the misappropriation of our other intellectual property rights. For example, many foreign countries have compulsory licensing laws under which a patent owner must grant licenses to third parties. In addition, many countries limit the enforceability of patents against third parties, including government agencies or government contractors.

In these countries, patents may provide limited or no benefit. Patent protection must ultimately be sought on a country-by-country basis, which is an expensive and time-consuming process with uncertain outcomes. Accordingly, we may choose not to seek patent protection in certain countries, and we will not have the benefit of patent protection in such countries.

Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly, could put our patent applications at risk of not issuing and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate, and the damages or other remedies awarded, if any, may not be commercially meaningful. In addition, changes in the law and legal decisions by courts in the United States, Europe and other jurisdictions may affect our ability to obtain adequate protection for our technology and the enforcement of intellectual property. Accordingly, our efforts to enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or license.

If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and our business may be adversely affected.

Our registered or unregistered trademarks or trade names may be challenged, infringed, circumvented or declared generic or determined to be infringing on other marks. We may not be able to protect our rights to these trademarks and trade names, which we need to build name recognition by potential partners or customers in our markets of interest. Over the long term, if we are unable to establish name recognition based on our trademarks and trade names, then we may not be able to compete effectively, and our business may be adversely affected.

Our inability to protect our intellectual property or failure to maintain the confidentiality and integrity of data or other sensitive company information, by cyber-attack or other event, could have a material adverse effect on our business.

Our success and competitive position are dependent in part upon our proprietary intellectual property. We rely on a combination of patents and trade secrets to protect our proprietary intellectual property, and we expect to continue to do so. Although we seek to protect our proprietary rights through a variety of means, we cannot guarantee that the protective steps we have taken are adequate to protect these rights. Patents issued to or licensed by us in the past or in the future may be challenged and held invalid. In addition, as our patents expire, we may be unsuccessful in extending their protection through patent term extensions or supplementary protection certificates. The expiration of, or the failure to maintain or extend our patents, could have a material adverse effect on us.

We also rely on confidentiality agreements with certain employees, consultants, and other third parties to protect, in part, trade secrets and other proprietary information. These agreements could be breached, and we may not have adequate remedies for such a breach. In addition, others could independently develop substantially equivalent proprietary information or gain access to our trade secrets or proprietary information.

Our intellectual property, other proprietary technology, and other sensitive company information is dependent on sophisticated information technology systems and is potentially vulnerable to cyber-attack, loss, damage, destruction from system malfunction, computer viruses, loss of data privacy, or misappropriation or misuse of it by those with permitted access, and other events. While we have invested to protect our intellectual property and other information, and continue to upgrade and enhance our systems to keep pace with continuing changes in information processing

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technology, there can be no assurance that our precautionary measures will prevent breakdowns, breaches, cyber-attacks, or other events. Such events could have a material adverse effect on our reputation, financial condition, or results of operations.

Risks related to intellectual property litigation

We may be subject to claims by third parties asserting ownership or commercial rights to inventions we develop or obligations to make compensatory payments to employees.

Third parties may in the future make claims challenging the inventorship or ownership of our intellectual property. We have written agreements with collaboration partners that provide for the ownership of intellectual property arising from our collaborations. Some of these agreements provide that we must negotiate certain commercial rights with collaboration partners with respect to joint inventions or inventions made by our collaboration partners that arise from the results of the collaboration. In some instances, there may not be adequate written provisions to address clearly the resolution of intellectual property rights that may arise from a collaboration. If we cannot successfully negotiate sufficient ownership and commercial rights to the inventions that result from the collaboration with a third-party collaboration partner, or if disputes otherwise arise with respect to the intellectual property developed in the framework of the collaboration, we may be limited in our ability to capitalize on the market potential of these inventions. In addition, we may face claims by third parties that our agreements with employees, contractors, or consultants obligating them to assign intellectual property to us are ineffective, or in conflict with prior or competing contractual obligations of assignment, which could result in ownership disputes regarding intellectual property we have developed or will develop and interfere with our ability to capture the commercial value of such inventions. Litigation may be necessary to resolve an ownership dispute, and if we are not successful, we may be precluded from using certain intellectual property, or may lose our exclusive rights in that intellectual property. Either outcome could have an adverse impact on our business.

While it is our policy to require our employees and contractors who may be involved in the development of intellectual property to execute agreements assigning such intellectual property to us, we may be unsuccessful in executing or obtaining such an agreement with each party who, in fact, develops intellectual property that we regard as our own. In addition, such agreements may be breached or may not be self-executing, and we may be forced to bring claims against third parties, or defend claims they may bring against us, to determine the ownership of what we regard as our intellectual property. If we fail in prosecuting or defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel.

Third parties may assert that our employees or consultants have wrongfully used or disclosed confidential information or misappropriated trade secrets.

We employ individuals who were previously employed at universities, pharmaceutical companies or biopharmaceutical companies, including our competitors or potential competitors. Although we try to ensure that our employees and consultants do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or our employees, consultants or independent contractors have inadvertently or otherwise used or disclosed intellectual property, including trade secrets or other proprietary information, of a former employer or other third parties. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management and other employees.

A dispute concerning the infringement or misappropriation of our proprietary rights or the proprietary rights of others could be time consuming and costly, and an unfavorable outcome could harm our business.

Our success will depend in part on our ability to operate without infringing the intellectual property and proprietary rights of third parties. We cannot assure you that our business, products, commercialization activities, and methods do not or will not infringe the patents, trademarks, or other intellectual property rights of third parties.

There is significant litigation in the pharmaceutical industry regarding patent and other intellectual property rights. While we are not currently subject to any pending intellectual property litigation, and are not aware of any such threatened litigation, we may be exposed to future litigation by third parties based on claims that our products or our product candidates, technologies or activities infringe the intellectual property rights of others. If our development

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activities are found to infringe any such patents, we may have to pay significant damages or seek licenses to such patents. A patentee could prevent us from using the patented drugs or compositions. We may need to resort to litigation to enforce a patent issued to us, to protect our trade secrets, or to determine the scope and validity of third-party proprietary rights. From time to time, we may hire scientific personnel or consultants formerly employed by other companies involved in one or more areas similar to the activities conducted by us. Either we or these individuals may be subject to allegations of trade secret misappropriation or other similar claims as a result of prior affiliations. Even if we are successful in these proceedings, we may incur substantial costs and divert management time and attention in pursuing these proceedings, which could have a material adverse effect on us. If we are unable to avoid infringing the patent rights of others, we may be required to seek a license, defend an infringement action or challenge the validity of the patents in court, or redesign our products. Patent litigation is costly and time consuming. We may not have sufficient resources to bring these actions to a successful conclusion. Any adverse ruling or perception of an adverse ruling in defending ourselves against these claims could have a material adverse impact on our cash position and the price of the ADSs or our ordinary shares. Any legal action against us or our collaboration partners could lead to:

● payment of substantial damages for past use of the asserted intellectual property and potentially treble damages, if we are found to have willfully infringed a party’s patent rights;

● injunctive or other equitable relief that may effectively block our ability to further develop, commercialize, and sell our product candidates; or

● us or our collaboration partners having to enter into license arrangements that may not be available on commercially acceptable terms, if at all, all of which could have a material adverse impact on our cash position and business and financial condition. As a result, we could be prevented from commercializing current or future product candidates.

Any of these risks coming to fruition could have a material adverse effect on our business, results of operations, financial condition and prospects.

Issued patents covering our approved product and product candidates could be found to be invalid or unenforceable if challenged in court

If we or one of our licensing partners initiated legal proceedings against a third party to enforce a patent covering our approved product or one of our product candidates, the defendant could counterclaim that the patent covering our approved product or one of our product candidates is invalid and/or unenforceable. In patent litigation, defendant counterclaims alleging invalidity and/or unenforceability are commonplace. Grounds for a validity challenge include alleged failures to meet any of several statutory requirements in most jurisdictions, including lack of novelty, obviousness or non-enablement. In the United States, grounds for unenforceability assertions include allegations that someone connected with prosecution of the patent withheld relevant information from the USPTO, or made a misleading statement, during prosecution. Third parties may also raise similar claims before administrative bodies in the United States or abroad, even outside the context of litigation. Such mechanisms include re-examination, post grant review and equivalent proceedings in foreign jurisdictions, e.g., opposition proceedings. Such proceedings could result in revocation or amendment of our patents in such a way that they no longer cover our approved product or product candidates or competitive products. The outcome following legal assertions of invalidity and unenforceability is unpredictable. With respect to validity, for example, we cannot be certain that there is no invalidating prior art, of which we and the patent examiner were unaware during prosecution. If a defendant were to prevail on a legal assertion of invalidity and/or unenforceability, we would lose at least part, and perhaps all, of the patent protection on our approved product and/or our product candidates. Such a loss of patent protection would have a material adverse impact on our business.

Risks related to our employee matters

Our future success depends on our ability to retain the members of our management board and to attract, retain and motivate qualified scientists, development, medical and commercial staff, consultants and advisors. If we are not successful in attracting and retaining highly qualified personnel, we may not be able to successfully implement our business strategy.

Our industry has experienced a high rate of turnover of management personnel in recent years. Our ability to compete in the highly competitive biotechnology and pharmaceutical industries depends upon our ability to attract and

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retain highly qualified managerial, scientific and medical personnel. We are highly dependent on our management, scientific and medical personnel, especially our management board comprised of: Onno van de Stolpe, our outgoing chief executive officer; Bart Filius, our president and chief operating officer; Walid Abi-Saab, our chief medical officer; Andre Hoekema, our chief business officer; and Michele Manto, our chief commercial officer, each of whose services are critical to the successful implementation of our product candidate acquisition, development and regulatory strategies. Upon his commencement as chief executive officer on April 1 following Mr. van de Stolpe’s departure, we will be similarly dependent on Stoffels IMC BV, permanently represented by Paul Stoffels. We are not aware of any present intention of any of these individuals to leave our company. In order to induce valuable employees to continue their employment with us, we have granted subscription rights and RSUs that vest over time. The value to employees of subscription rights that vest over time is significantly affected by movements in our share price that are beyond our control and may at any time be insufficient to counteract more lucrative offers from other companies.

Despite our efforts to retain valuable employees, members of our management, scientific, development, medical and commercial teams may terminate their employment with us at any time, with or without notice. The loss of the services of any of the members of our management board or other key employees and our inability to find suitable replacements could harm our business, financial condition and prospects. Our success also depends on our ability to continue to attract, retain and motivate highly skilled junior, mid-level, and senior managers as well as junior, mid-level, and senior scientific and medical personnel.

We may not be able to attract or retain qualified management and scientific personnel in the future due to the intense competition for a limited number of qualified personnel among biopharmaceutical, biotechnology, pharmaceutical and other businesses. Many of the other pharmaceutical companies that we compete against for qualified personnel have greater financial and other resources, different risk profiles and a longer history in the industry than we do. They also may provide more diverse opportunities and better chances for career advancement. Some of these characteristics may be more appealing to high quality candidates than what we have to offer. If we are unable to continue to attract and retain high quality personnel, the rate and success at which we can develop and commercialize product candidates will be limited.

Risks from the improper conduct of employees, agents, contractors, or collaboration partners could adversely affect our reputation and our business, prospects, operating results, and financial condition.

We cannot ensure that our compliance controls, policies, and procedures will in every instance protect us from acts committed by our employees, agents, contractors, or collaboration partners that would violate the laws or regulations of the jurisdictions in which we operate, including, without limitation, healthcare, employment, foreign corrupt practices, environmental, competition, and patient privacy and other privacy and data protection laws and regulations. Such improper actions could subject us to civil or criminal investigations, and monetary and injunctive penalties, and could adversely impact our ability to conduct business, operating results, and reputation.

In particular, our business activities may be subject to the Foreign Corrupt Practices Act, or FCPA, and similar anti-bribery or anti-corruption laws, regulations or rules of other countries in which we operate, including the U.K. Bribery Act. The FCPA generally prohibits offering, promising, giving, or authorizing others to give anything of value, either directly or indirectly, to a non-U.S. government official in order to influence official action, or otherwise obtain or retain business. The FCPA also requires public companies to make and keep books and records that accurately and fairly reflect the transactions of the corporation and to devise and maintain an adequate system of internal accounting controls. Our business is heavily regulated and therefore involves significant interaction with public officials, including officials of non-U.S. governments. Additionally, in many other countries, the health care providers who prescribe pharmaceuticals are employed by their government, and the purchasers of pharmaceuticals are government entities; therefore, our dealings with these prescribers and purchasers are subject to regulation under the FCPA. Recently the SEC and U.S. Department of Justice have increased their FCPA enforcement activities with respect to pharmaceutical companies. There is no certainty that all of our employees, agents, contractors, or collaboration partners, or those of our affiliates, will comply with all applicable laws and regulations, particularly given the high level of complexity of these laws. Violations of these laws and regulations could result in fines, criminal sanctions against us, our officers, or our employees, the closing down of our facilities, requirements to obtain export licenses, cessation of business activities in sanctioned countries, implementation of compliance programs, and prohibitions on the conduct of our business. Any such violations could include prohibitions on our ability to offer our products in one or more countries and could materially damage our reputation, our brand, our international expansion efforts, our ability to attract and retain employees, and our business, prospects, operating results, and financial condition.

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We could be subject to liabilities under human rights, corruption, environmental, health and safety laws or regulations, or fines, penalties or other sanctions, if we fail to comply with such laws or regulations or otherwise incur costs that could have a material adverse effect on the success of our business.

We are subject to numerous human rights, corruption, environmental, health and safety laws, regulations, and permitting requirements, including those governing laboratory procedures, decontamination activities and the handling, transportation, use, remediation, storage, treatment and disposal of hazardous materials and wastes. Our operations involve the use of hazardous and flammable materials, including chemicals, radioactive isotopes and biological materials and produce hazardous waste products. We generally contract with third parties for the disposal of these materials and wastes. We cannot eliminate the risk of contamination or injury from these materials or wastes either at our sites or at third-party disposal sites. In the event of such contamination or injury, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs and reputational loss associated with civil or criminal fines and penalties. Although we maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous materials or other work-related injuries, this insurance may not provide adequate coverage against potential liabilities.

In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws, regulations or permitting requirements. These current or future laws, regulations and permitting requirements may impair our research, development or production efforts. Failure to comply with these laws, regulations and permitting requirements also may result in substantial fines, penalties or other sanctions. As an example, climate change and more specifically the related current and future regulatory requirements as well as the accelerated transition to a low carbon economy might globally adversely impact Galapagos’ compliance status and value chain, if not addressed adequately.

Risks related to our business operations and growth

If we fail to manage our growth effectively, our ability to develop and commercialize products could suffer.

We expect that if our drug discovery efforts continue to generate product candidates, our clinical product candidates continue to progress in development, and we continue to build our development, medical and commercial organizations, we will require significant additional investment in personnel, management and resources. Our ability to achieve our research, development and commercialization objectives depends on our ability to respond effectively to these demands expand our internal organization, systems, controls and facilities to accommodate additional anticipated growth and upon our management team developing and implementing strategies for us to realize these objectives. If we are unable to manage our growth effectively, our business could be harmed and our ability to execute our business strategy could suffer.

We must maintain effective internal control over financial reporting, and if we are unable to do so, the accuracy and timeliness of our financial reporting may be adversely affected, which could have a material adverse effect on our business, investor confidence and market price.

We must maintain effective internal control over financial reporting in order to accurately and timely report our results of operations and financial condition. We often use estimates and assumptions concerning the future. We make reference to section Critical accounting judgments and key sources of estimation uncertainty for more information. In addition, because we are a U.S. public company, the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act, requires, among other things, that we assess the effectiveness of our disclosure controls and procedures annually and the effectiveness of our internal control over financial reporting at the end of each fiscal year.

Section 404 of the Sarbanes-Oxley Act, or Section 404, requires us to perform system and process evaluation and testing of our internal control over financial reporting to allow management to report on, and our independent registered public accounting firm to attest to, the effectiveness of our internal control over financial reporting. The rules governing the standards that must be met for our management to assess our internal control over financial reporting pursuant to Section 404 of the Sarbanes-Oxley Act are complex and require significant documentation, testing and possible remediation. These stringent standards require that our audit committee be advised and regularly updated on management’s review of internal control over financial reporting. Our compliance with applicable provisions of Section 404 will require that we incur substantial accounting expense and expend significant management time on compliance-related issues as we implement additional corporate governance practices and comply with reporting requirements.

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Moreover, if we are not able to comply with the requirements of Section 404 applicable to us in a timely manner, or if we or our independent registered public accounting firm identifies deficiencies in our internal control over financial reporting that are deemed to be material weaknesses, the market price of the ADSs or our ordinary shares could decline and we could be subject to sanctions or investigations by the SEC or other regulatory authorities, which would require additional financial and management resources. Furthermore, investor perceptions of our company may suffer if deficiencies are found, and this could cause a decline in the market price of the ADSs or our ordinary shares. Irrespective of compliance with Section 404, any failure of our internal control over financial reporting could have a material adverse effect on our stated operating results and harm our reputation. If we are unable to implement these requirements effectively or efficiently, it could harm our operations, financial reporting, or financial results and could result in an adverse opinion on our internal control over financial reporting from our independent registered public accounting firm.

Galapagos’ management identified a material weakness in our internal control over financial reporting as of December 31, 2021, specifically related to the review of certain elements of the percentage of completion determination that drives the filgotinib collaboration revenue recognition (please refer to note 6 of the financial statements where this topic is discussed in more detail). Our remediation plan that is being developed includes improving the existing control on the filgotinib revenue recognition to enhance the precision of the review of management’s cost to complete estimate. Notwithstanding the material weakness, management has concluded that our audited financial statements included in this Annual Report on Form 20-F are fairly stated in all material respects in accordance with IFRS for each of the periods presented herein. See the section of this annual report titled “Item 15—Controls and Procedures.”

Our information technology systems could face serious disruptions that could adversely affect our business.

Our information technology and other internal infrastructure systems, including corporate firewalls, servers, leased lines and connection to the Internet, face the risk of system failure that could disrupt our operations. A significant disruption in the availability of our information technology and other internal infrastructure systems could cause interruptions in our collaborations with our partners and delays in our research and development work. The loss of product development or clinical trial data could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. To the extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability and our development programs and the development of our product candidates could be delayed.

We could be required to expend significant amounts of money and other resources to respond to these threats or breaches and to repair or replace information systems or networks, and could suffer reputational loss, financial loss or the loss of valuable confidential information, which could include patient data, customer data and personally identifiable information. In addition, we could be subject to regulatory actions and/or claims made by individuals and groups in private litigation involving privacy issues related to data collection and use practices and other data privacy laws and regulations, including claims for misuse or inappropriate disclosure of data, as well as unfair or deceptive practices. Although we develop and maintain systems and controls designed to prevent these events from occurring, and we have a process to identify and mitigate threats, the development and maintenance of these systems, controls and processes is costly and requires ongoing monitoring and updating as technologies change and efforts to overcome implemented security measures become increasingly sophisticated. Moreover, despite our efforts, the possibility of these events occurring cannot be eliminated entirely and there can be no assurance that any measures we take will prevent cyber-attacks, security breaches or similar attacks or breaches that could adversely affect our business.

Many third party vendors support our business processes and require access to sensitive or confidential information in the course of their work supporting our operations. Despite clear guidance, supporting processes and requirements and assessments and audits of our third party vendors, the risk that such vendors could be susceptible to cybersecurity or security breaches, including personal data breaches, continues to be present. Any such breach could result in the accidental or unlawful destruction, loss, alteration, unauthorized access, disclosure, or other loss of proprietary, personal or other confidential information, or other disruption to our business and operations.

Any system failure, accident or security breach that causes interruptions in our own or in third party service vendors’ operations could result in a material disruption of our product development programs. For example, the loss of clinical trial data from completed or future clinical trials could result in delays in our or our partners’ regulatory approval efforts and significantly increase our costs in order to recover or reproduce the lost data. To the extent that any disruption or security breach results in a loss or damage to our data or applications, or inappropriate disclosure of confidential or proprietary information, we may incur liability, our product development programs and competitive position may be

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adversely affected and the further development of our product candidates may be delayed. If the integrity of our cybersecurity systems is breached, we may incur significant effects such as remediation expenses, lost revenues, litigation costs, and increased insurance premiums and may also experience reputational damage and the erosion of shareholder value. Furthermore, we may incur additional costs to remedy the damage caused by these disruptions or security breaches. Like other companies, we have on occasion experienced, and will continue to experience, threats to our data and systems, including malicious codes and viruses, phishing, business email compromise attacks, or other cyber-attacks. Whereas none of these instances had a material impact so far, the number and complexity of these threats continue to increase over time. If a material breach of our information technology systems or those of our third party service providers occurs, the market perception of the effectiveness of our security measures could be harmed and our reputation and credibility could be damaged.

If product liability lawsuits are brought against us, we may incur substantial liabilities and may be required to limit commercialization of our approved product and any future approved products.

We face an inherent risk of product liability as a result of the clinical testing of our product candidates and an even greater risk in connection with our commercialization of our current and future drugs. For example, we may be sued if any product we develop allegedly causes injury or is found to be otherwise unsuitable during product testing, manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in design, a failure to warn of dangers inherent in the product, negligence, strict liability and a breach of warranties. Physicians and patients may not comply with any warnings that identify known potential adverse effects and patients who should not use our products. Claims could also be asserted under state consumer protection acts. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to stop development or, if approved, limit commercialization of our product candidates. Even successful defense would require significant financial and management resources. Regardless of the merits or eventual outcome, liability claims may result in:

• delay or termination of clinical trials;

• injury to our reputation;

• withdrawal of clinical trial participants;

• initiation of investigations by regulators;

• costs to defend the related litigation;

• a diversion of management’s time and our resources;

• substantial monetary awards to trial participants or patients;

• decreased demand for our approved product, any future products, or our product candidates;

• product recalls, withdrawals or labeling, marketing or promotional restrictions;

• loss of revenues from product sales; and

• the inability to commercialize our approved product or any of our product candidates, if approved.

Our inability to obtain and retain sufficient product liability insurance at an acceptable cost to protect against potential product liability claims could prevent or inhibit the development or commercialization of our product candidates. We currently carry clinical trial liability insurance and product liability insurance at levels which we believe are appropriate for our clinical trials and our commercialization activities for filgotinib. Although we maintain such insurance, any claim that may be brought against us could result in a court judgment or settlement in an amount that is not covered, in whole or in part, by our insurance or that is in excess of the limits of our insurance coverage. Our insurance policies also have various exclusions, and we may be subject to a product liability claim for which we have no coverage. We will have to pay any amounts awarded by a court or negotiated in a settlement that exceed our coverage

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limitations or that are not covered by our insurance, and we may not have, or be able to obtain, sufficient capital to pay such amounts.

Our relationships with customers and third-party payers may be subject, directly or indirectly, to applicable anti-kickback laws, fraud and abuse laws, false claims laws, health information privacy and security laws and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm, administrative burdens and diminished profits and future earnings.

We are subject to additional healthcare statutory and regulatory requirements and enforcement by the federal government and the states and foreign governments in which we conduct our business. Healthcare providers, physicians and third-party payers play a primary role in the recommendation and prescription of any of our approved drugs and drug candidates for which we obtain marketing approval. Our current and future arrangements with third-party payers and customers may expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which we market, sell and distribute any products for which we obtain marketing approval. In addition, we may be subject to privacy, data protection and security regulation of the European Union, the United States and other jurisdictions in which we conduct our business. See section entitled “Information on the Company – Other healthcare laws and compliance requirements.”The scope and enforcement of each of laws is uncertain and subject to rapid change in the current environment of healthcare reform, especially in light of the lack of applicable precedent and regulations. Federal and state enforcement bodies have recently increased their scrutiny of interactions between healthcare companies and healthcare providers, which has led to a number of investigations, prosecutions, convictions and settlements in the healthcare industry. Ensuring that our internal operations and future business arrangements with third parties comply with applicable healthcare laws and regulations will involve substantial costs. It is possible that governmental authorities will conclude that our business practices do not comply with current or future statutes, regulations, agency guidance or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of the laws described above or any other governmental laws and regulations that may apply to us, we may be subject to significant penalties, including administrative, civil and criminal penalties, damages, fines, disgorgement, the exclusion from participation in federal and state healthcare programs, individual imprisonment, reputational harm, and the curtailment or restructuring of our operations, as well as additional reporting obligations and oversight if we become subject to a corporate integrity agreement or other agreement to resolve allegations of non-compliance with these laws. Further, defending against any such actions can be costly and time consuming, and may require significant financial and personnel resources. Therefore, even if we are successful in defending against any such actions that may be brought against us, our business may be impaired. If any of the physicians or other providers or entities with whom we expect to do business are found to not be in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs and imprisonment. If any of the above occur, our ability to operate our business and our results of operations could be adversely affected.

We may fail to comply with evolving privacy and data protection laws and requirements in effect in the European Union and other jurisdictions.

In the European Union, or “EU”, we may face particular privacy, data security, and data protection risks in connection with requirements of the Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC, or the “GDPR.” The GDPR applies to the processing of personal data in the context of the activities of an establishment of a controller or a processor in the EU as well as to those outside the EU if they collect and use personal data in connection with the offering of goods or services to individuals in the EU or the monitoring of their behavior. The GDPR has enhanced data protection obligations for controllers of personal data, including, for example, expanded disclosures about how personal data is to be used, limitations on retention of data, enhanced requirements for securing personal data, mandatory data breach notification requirements, restrictions on transferring such personal data outside the European Economic Area, or the ”EEA”, including to the United States, appointing data protection officers, conducting data protection impact assessments, and has created onerous liabilities on controllers or processors. The GDPR increases substantially the penalties to which we could be subject in the event of any non-compliance, including fines of up to €10,000,000 or up to 2% of our total worldwide annual turnover of the preceding year for lower threshold non-compliance, or up to €20,000,000 or up to 4% of our total worldwide annual turnover of the preceding year. The GDPR may increase our responsibility and liability in relation to personal data that we process where such processing is subject to the GDPR, and we may be required to put in place additional mechanisms to ensure compliance with the GDPR, including as implemented by individual countries. Compliance with

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the GDPR is a rigorous and time-intensive process that may increase our cost of doing business or require us to change our business practices, and despite those efforts, there is a risk that we may be subject to fines and penalties, litigation, and reputational harm in connection with our activities.

In addition, further to the UK’s exit from the EU on January 31, 2020, the GDPR ceased to apply in the UK at the end of the transition period on December 31, 2020. However, as of January 1, 2021, the UK’s European Union (Withdrawal) Act 2018 incorporated the GDPR (as it existed on December 31, 2020 but subject to certain UK specific amendments) into UK law, referred to as the UK GDPR. The UK GDPR and the UK Data Protection Act 2018 set out the UK’s data protection regime, which is independent from but aligned to the EU’s data protection regime. Non-compliance with the UK GDPR may result in monetary penalties of up to £17.5 million or 4% of worldwide revenue, whichever is higher. Although the UK is regarded as a third country under the EU’s GDPR, the European Commission (“EC”) has now issued an adequacy decision, which recognizes the UK as providing an equivalent level of protection for personal data as the EU does and, therefore, transfers of personal data originating in the EEA to the UK remain unrestricted. Like the EU GDPR, the UK GDPR restricts personal data transfers outside the UK to countries not regarded by the UK as providing adequate protection. The UK government has confirmed that personal data transfers from the UK to the EEA remain free flowing.

To enable the transfer of personal data outside of the EEA or the UK, adequate safeguards must be implemented in compliance with European and UK data protection laws. On June 4, 2021, the EC issued new forms of standard contractual clauses (“SCCs”) for data transfers from controllers or processors in the EU/EEA (or otherwise subject to the GDPR) to controllers or processors established outside the EU/EEA. The new SCCs replace the SCCs that were adopted previously under the 1995 EU Data Protection Directive. The UK is not subject to the EC’s new standard contractual clauses but has published a version of a UK-specific transfer mechanism, which will enable transfers from the UK. We are required to implement these new safeguards when conducting restricted data transfers under the EU and UK GDPR and doing so will require significant effort and cost. The new SCCs may also impact our business as companies based in Europe may be reluctant to uzilize the new clauses to legitimize transfers of personal information to third countries given the additional burdensome requirements of performing transfer impact assessments and other substantial obligations that the new SCCs impose upon both importers and exporters.

We must also ensure that we maintain adequate safeguards to enable the transfer of personal data outside of the EU and the UK, in particular to the United States in compliance with European data protection laws. The EU-U.S. and the Swiss-U.S. Privacy Shield frameworks allowed U.S. companies to self-certify to the U.S. Department of Commerce and publicly commit to comply with specified requirements to import personal data from the EU and Switzerland. In July 2020, the Court of Justice of the EU ruled that the EU-U.S. Privacy Shield is an invalid transfer mechanism, which was one of the primary mechanisms used by U.S. companies to import personal information from Europe in compliance with the GDPR’s cross-border data transfer restrictions, and raised questions about whether the EC’s SCCs, one of the primary alternatives to the Privacy Shield, can lawfully be used for personal information transfers from Europe to the United States or most other countries. Similarly, the Swiss Federal Data Protection and Information Commissioner has opined that the Swiss-U.S. Privacy Shield is inadequate for transfers of data from Switzerland to the U.S, and the UK Information Commissioner’s Office has stated that the Privacy Shield framework is inadequate for transfers from the UK to the U.S. At present, there are few, if any, viable alternatives to the SCCs and, therefore, there is uncertainty regarding how to lawfully transfer personal data from EU or the UK to the U.S. and other third countries. Failure to comply with the GDPR’s and UK’s cross-border data restrictions may increase our exposure to its heightened sanctions and limit our ability to collaborate with service providers and other companies subject to European and UK data protection laws.

If we are investigated by a European data protection authority, we may face fines and other penalties. Any such investigation or charges by European data protection authorities could have a negative effect on our existing business and on our ability to attract and retain new clients or pharmaceutical partners. We may also experience hesitancy, reluctance, or refusal by European or multi-national clients or pharmaceutical partners to continue to use our products due to the potential risk exposure as a result of the current (and, in particular, future) data protection obligations imposed on them by certain data protection authorities in interpretation of current law, including the GDPR. Such clients or pharmaceutical partners may also view any alternative approaches to compliance as being too costly, too burdensome, too legally uncertain, or otherwise objectionable and therefore decide not to do business with us. Any of the foregoing could materially harm our business, prospects, financial condition, and results of operations.

We are also subject to evolving European privacy laws on electronic marketing and cookies. The EU is in the process of replacing the e-Privacy Directive (2002/58/EC) with a new set of rules taking the form of a regulation. While

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the e-Privacy Regulation was originally intended to be adopted on May 25, 2018 (alongside the GDPR), it is still going through the European legislative process. In February 2021, the EU Member States reached agreement on the European Council’s negotiating mandate for the European Parliament. While the final draft of the e-Privacy Regulation is closer to being finalized it is unlikely that the new ePrivacy Regulation will come into effect before 2023. Preparing for and complying with the ePrivacy Regulation (if and when it becomes effective) has required and will continue to require us to incur substantial operational costs and may require us to change our business practices.

Despite our efforts to bring practices into compliance with the GDPR and before the effective date of the ePrivacy Regulation, we may not be successful either due to internal or external factors such as resource allocation limitations. Non-compliance could result in proceedings against us by governmental entities, customers, data subjects, consumer associations or others.

Business interruptions could delay us in the process of developing our product candidates.

Loss of our laboratory facilities through fire or other causes could have an adverse effect on our ability to continue to conduct our business. We currently have insurance coverage to compensate us for such business interruptions; however, such coverage may prove insufficient to compensate us fully for the damage to our business resulting from any significant property or casualty loss to our facilities.

We may undertake strategic acquisitions in the future and any difficulties from integrating such acquisitions could adversely affect our share price, and results of operations.

We may acquire companies, businesses and products that complement or augment our existing business. We may not be able to integrate any acquired business successfully or operate any acquired business profitably. Integrating any newly acquired business could be expensive and timeconsuming. Integration efforts often take a significant amount of time, place a significant strain on managerial, operational and financial resources, result in loss of key personnel and could prove to be more difficult or expensive than we predict. The diversion of our management’s attention and any delay or difficulties encountered in connection with any future acquisitions we may consummate could result in the disruption of our on-going business or inconsistencies in standards and controls that could negatively affect our ability to maintain third-party relationships. Moreover, we may need to raise additional funds through public or private debt or equity financing, or issue additional shares, to acquire any businesses or products, which may result in dilution for shareholders or the incurrence of indebtedness.

As part of our efforts to acquire companies, business or product candidates or to enter into other significant transactions, we conduct business, legal and financial due diligence with the goal of identifying and evaluating material risks involved in the transaction. Despite our efforts, we ultimately may be unsuccessful in ascertaining or evaluating all such risks and, as a result, might not realize the intended advantages of the transaction. If we fail to realize the expected benefits from acquisitions we may consummate in the future or have consummated in the past, whether as a result of unidentified risks or liabilities, integration difficulties, regulatory setbacks, litigation with current or former employees and other events, our business, results of operations and financial condition could be adversely affected. If we acquire product candidates, we will also need to make certain assumptions about, among other things, development costs, the likelihood of receiving regulatory approval and the market for such product candidates. Our assumptions may prove to be incorrect, which could cause us to fail to realize the anticipated benefits of these transactions.

In addition, we will likely experience significant charges to earnings in connection with our efforts, if any, to consummate acquisitions. For transactions that are ultimately not consummated, these charges may include fees and expenses for investment bankers, attorneys, accountants and other advisors in connection with our efforts. Even if our efforts are successful, we may incur, as part of a transaction, substantial charges for closure costs associated with elimination of duplicate operations and facilities and acquired in-process research and development charges. In either case, the incurrence of these charges could adversely affect our results of operations for particular periods.

Actions of activist shareholders could cause us to incur substantial costs, divert our management’s and our directors’ attention and resources, and have an adverse effect on our business and trading price.

From time to time, we may be subject to proposals by shareholders urging us to take certain corporate actions or to nominate certain individuals to our board of directors. If activist shareholder activities by shareholders ensue, our business could be adversely affected, as responding to actions by activist shareholders can be costly and time-

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consuming, disrupt our operations and divert the attention of management and directors. For example, we may be required to retain the services of various professionals to advise us on activist shareholder matters, including legal, financial, and communications advisors, the costs of which may negatively impact our future financial results. In addition, perceived uncertainties as to our future direction, strategy or leadership created as a consequence of activist shareholder initiatives may result in the loss of potential business opportunities, harm our ability to attract new investors, customers, and employees, and cause the price of our ADSs to experience periods of volatility or stagnation.

Our international operations subject us to various risks, and our failure to manage these risks could adversely affect our results of operations.

We face significant operational risks as a result of doing business internationally, such as:

● fluctuations in foreign currency exchange rates;

● potentially adverse and/or unexpected tax consequences, including penalties due to the failure of tax planning or due to the challenge by tax authorities on the basis of transfer pricing and liabilities imposed from inconsistent enforcement;

● potential changes to the accounting standards, which may influence our financial situation and results;

● becoming subject to the different, complex and changing laws, regulations and court systems of multiple jurisdictions and compliance with a wide variety of foreign laws, treaties and regulations;

● reduced protection of, or significant difficulties in enforcing, intellectual property rights in certain countries;

● difficulties in attracting and retaining qualified personnel;

● restrictions imposed by local labor practices and laws on our business and operations, including unilateral cancellation or modification of contracts;

● rapid changes in global government, economic and political policies and conditions, political or civil unrest or instability, terrorism or epidemics and other similar outbreaks or events, and potential failure in confidence of our suppliers or customers due to such changes or events; and

● tariffs, trade protection measures, import or export licensing requirements, trade embargoes and other trade barriers.

Unforeseen or catastrophic events, including extreme weather events and other natural disasters, man-made disasters or the emergence of epidemics, could cause a disruption in our operations or other consequences that could have a material adverse effect on our financial condition and results of operations.

The occurrence of unforeseen or catastrophic events, including extreme weather events and other natural disasters, man-made disasters, geopolitical and other economic and political conditions or events (such as the developing armed conflict between Russia and Ukraine) or the emergence of epidemics, depending on their scale, may cause different degrees of damage to the national and local economies and could cause a disruption in our operations and have a material adverse effect on our financial condition and results of operations. Russia invaded Ukraine in February 2022 which has resulted in significant uncertainty and may cause the market price and demand for our ADSs or ordinary shares to fluctuate substantially. Man-made disasters, pandemics, and other events connected with the regions in which we operate could have similar effects. If a natural or man-made disaster, power outage or other event occurred that prevented us from using all or a significant portion of our headquarters, that damaged critical infrastructure, such as clinical trial sites or the manufacturing facilities of our third-party contract manufacturers, or that otherwise disrupted operations, it may be difficult or, in certain cases, impossible for us to continue our business for a substantial period of time. The disaster recovery and business continuity plans we have in place may prove inadequate in the event of a serious disaster or similar event. We may incur substantial expenses as a result of the limited nature of our disaster recovery and business continuity plans, which, could have a material adverse effect on our business.

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The ongoing military conflict between Russia and Ukraine and other macroeconomic factors could adversely impact our business, including our commercial operations, clinical development activities and clinical trials.

We currently have ongoing clinical studies for filgotinib with CROs located in Ukraine and Russia. If our CROs experience significant or extended disruptions to their business due to the military conflict in Ukraine and the sanctions against Russia, it could result in delays in our clinical development activities. This conflict could cause extended periods of time in which trials are suspended, sustained difficulties enrolling patients in clinical trials and/or disruptions to ongoing trials based on the attrition of patients, facility closures or limitations on the use of hospitals as clinical trial sites and governmental restrictions on “non-essential” procedures and activities, any of which may further delay our clinical development plans and timelines and also may impact the integrity of our clinical trial data for ongoing trials. This conflict may also include interruptions in FDA operations or the operations of comparable foreign regulatory agencies, which may in turn impact our timelines for receiving regulatory approvals and feedback.

The impact on ongoing pivotal studies such as DIVERSITY 1 will remain limited. We continue to monitor the situation and are taking measures to mitigate the impact on our ability to conduct clinical development activities. Interruptions or delays in our and our CROs’ ability to meet expected clinical development deadlines or to comply with contractual commitments with respect to the same, including timelines around preclinical studies and planned clinical trials, could lead to delays in our overall developmental and commercialization timelines, which would adversely impact our ability to conduct clinical development activities and complete them on a timely basis. Since February 24, 2022, we have extended the focus of the business continuity plan to closely monitor each program in context of the currently ongoing Ukraine-Russia crisis and the associated specific regulatory, institutional, and government guidance and policies.

Our business, results of operations and future growth prospects could be materially and adversely affected by the ongoing COVID-19 pandemic.

Due to the continued evolution and uncertain global impacts of the COVID-19 pandemic, we cannot precisely determine or quantify the impact this pandemic will have on our business, operations and financial performance. The extent to which COVID-19 may impact our preclinical studies, clinical trial operations, business, results of operations and future growth prospects will depend on a variety of factors and future developments, which are highly uncertain and cannot be predicted with confidence, such as the duration, scope and severity of the pandemic, the duration and extent of travel restrictions and social distancing restrictions, business closures or business disruptions and the effectiveness of other governmental actions taken to contain and treat COVID-19.

The continued spread of COVID-19 globally, and public health actions being undertaken in response thereto, have presented operational challenges for our business. For ongoing and planned clinical trials, we anticipate and have experienced some temporary delays or disruptions due to the COVID-19 pandemic, including limited or reduced patient access to trial investigators, hospitals and trial sites, delayed initiation of new clinical trial sites and limited on-site personnel support at various trial sites, which could adversely impact our development plans, including the initiation of planned clinical trials, the rate of enrollment and our ability to conduct ongoing clinical trials. There may also be local orders affecting one or more trial sites, which may trigger mandated changes to our clinical trial protocols or temporary suspensions in the affected trial sites. The COVID-19 pandemic, and measures undertaken to control the spread of the virus, could impair our ability to initiate clinical trial sites and to recruit and retain patients and principal investigators and site staff who, as healthcare providers, may have heightened exposure to COVID-19 if an outbreak occurs in their geography or due to prioritization of hospital resources toward the outbreak and restrictions in travel. Furthermore, some patients may be unwilling to enroll in our trials or be unable to comply with clinical trial protocols if quarantines or travel restrictions impede patient movement or interrupt healthcare services. COVID-19 may also affect employees of third-party contract research organizations located in affected geographies that we rely upon to carry out our clinical trials. Additionally, the spread of COVID-19 may also negatively affect the operations of our third-party manufacturers, which could result in delays or disruptions in the supply of our current product candidates and any future product candidates. Any negative impact COVID-19 has on patient enrollment or treatment or the execution of our planned and ongoing preclinical studies and clinical trials, on our manufacturers and suppliers, and on our business plans generally could cause costly delays, which could adversely affect our ability to commercialize filgotinib and to obtain regulatory approval for and commercialize any future approved products, and our current and any future product candidates, increase our operating expenses, and could have a material adverse effect on our financial results.

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In addition, we may take temporary precautionary measures intended to help minimize the risk of the virus to the physical health and mental health of our employees, including temporarily requiring all employees to work remotely, suspending all non-essential travel worldwide for our employees, and discouraging employee attendance at industry events and in-person work-related meetings, which could negatively affect our business. The COVID-19 pandemic may also cause delays in regulatory approvals.

Continuing uncertainty around the ongoing pandemic and related issues could lead to adverse effects on the economy of the United States and other economies, which could impact our ability to develop and commercialize our products and raise capital going forward.

The increasing use of social media platforms presents risks and challenges.

We and our employees are increasingly utilizing social media tools as a means of communication both internally and externally. Despite our efforts to monitor evolving social media communication guidelines and comply with applicable rules, there is risk that the use of social media by us or our employees to communicate about our drug candidates or business may cause us to be found in violation of applicable requirements. In addition, our employees may knowingly or inadvertently make use of social media in ways that may not comply with our social media policy or other legal or contractual requirements, which may give rise to liability, lead to the loss of trade secrets or other intellectual property, or result in public exposure of personal information of our employees, clinical trial patients, collaboration partners, and others. Furthermore, negative posts or comments about us or our products in social media could seriously damage our reputation, brand image, and goodwill.

Risks related to tax and other financial matters

If we are unable to use tax loss carryforwards to reduce future taxable income or benefit from favorable tax legislation, our business, results of operations and financial condition may be adversely affected.

As of December 31, 2021, we had cumulative carry forward tax losses of €556.9 million in Belgium, €66.2 million in France, and €12.5 million related to the other entities of our company. These are available to carry forward and offset against future taxable income for an indefinite period in Belgium and France, but €2.8 million of these tax loss carryforwards in the United States will expire between 2028 and 2034. If we are unable to use tax loss carryforwards to reduce future taxable income, our business, results of operations and financial condition may be adversely affected. As a company active in research and development in Belgium and France, we have benefited from certain research and development incentives including, for example, the Belgian research and development tax credit and the French research tax credit (crédit d’impôt recherche). These tax credits can be offset against Belgian and French corporate income tax due, respectively. The excess portion may be refunded as from the end of a five-year fiscal period for the Belgian research and development incentive, and at the end of a three-year fiscal period for the French research and development incentive. The research and development incentives are both calculated based on the amount of eligible research and development expenditure. The Belgian tax credit represented €21.7 million for the year ended December 31, 2019, and €21.7 million for the year ended December 31, 2020, and €20.9 million for the year ended December 31, 2021. The French tax credit amounted to €12.4 million for the year ended December 31, 2019, and €12.4 million for the year ended December 31, 2020, and €12.4 million for the year ended December 31, 2021. The Belgian and/or French tax authorities may audit each research and development program in respect of which a tax credit has been claimed and assess whether it qualifies for the tax credit regime. The tax authorities may challenge our eligibility for, or our calculation of, certain tax reductions and/or deductions in respect of our research and development activities and, should the Belgian and/or French tax authorities be successful, we may be liable for additional corporate income tax, and penalties and interest related thereto, which could have a significant impact on our results of operations and future cash flows. Furthermore, if the Belgian and/or the French government decide to eliminate, or reduce the scope or the rate of, the research and development incentive benefit, either of which it could decide to do at any time, our results of operations could be adversely affected.

As a company active in research and development in Belgium, we also expect to benefit from the innovation income deduction, or IID, in Belgium. The innovation income deduction regime allows net profits attributable to revenue from among others patented products (or products for which the patent application is pending) to be taxed at a lower effective tax rate than other revenues. The effective tax rate can thus be reduced up to 3.75%. At the end of 2021 we had €301.3 million of carry-forward IID in Belgium.

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On December 22, 2021, the European Commission has published its proposal for a Council Directive on ensuring a global minimum level of taxation for multinational groups in the Union, proposing to lay down rules for ensuring a minimum level of effective corporate taxation of large multinational groups and large-scale purely domestic groups operating in the Single Market, which are consistent with the agreement reached by the OECD/BEPS Inclusive Framework on October 8, 2021, and follow closely the OECD Model Rules agreed by the Inclusive Framework and published on December 20, 2021 (the so-called “Pillar II”). The aim of the proposal is to realize a 15% global minimum effective tax rate at country-per-country level. At this stage, no carve-out for patent box regimes or R&D incentives is included in the proposal, hence if and when adopted in a (materially) unchanged version, this proposal could have a significant impact on the company’s effective tax rate and/or tax attributes. The proposal is however still subject to an agreement between the Member States.

Our inability to qualify for the abovementioned advantageous tax regimes, as well as the introduction of the minimum taxable base and any other future adverse changes of Belgian tax legislation, may adversely affect our business, results of operations and financial condition.

Our shareholders residing in countries other than Belgium may be subject to double withholding taxation with respect to dividends or other distributions made by us.

Any dividends or other distributions we make to shareholders will, in principle, be subject to withholding tax in Belgium at a rate of 30%, except for shareholders which qualify for an exemption of withholding tax such as, among others, qualifying pension funds or a company qualifying as a parent company in the sense of the Council Directive (90/435/EEC) of July 23, 1990, or the Parent-Subsidiary Directive, or that qualify for a lower withholding tax rate or an exemption by virtue of a tax treaty. Various conditions may apply and shareholders residing in countries other than Belgium are advised to consult their advisers regarding the tax consequences of dividends or other distributions made by us. Our shareholders residing in countries other than Belgium may not be able to credit the amount of such withholding tax to any tax due on such dividends or other distributions in any other country than Belgium. As a result, such shareholders may be subject to double taxation in respect of such dividends or other distributions. Belgium and the United States have concluded a double tax treaty concerning the avoidance of double taxation, or the U.S.-Belgium Tax Treaty. The U.S.-Belgium Tax Treaty reduces the applicability of Belgian withholding tax to 15%, 5% or 0% for U.S. taxpayers that are the beneficial owner of the dividend income concerned, provided that the U.S. taxpayer meets the limitation on benefits conditions imposed by the U.S.-Belgium Tax Treaty. The Belgian withholding tax is generally reduced to 15% under the U.S.-Belgium Tax Treaty. The 5% withholding tax applies in case where the U.S. shareholder, beneficial owner of the income, is a company which holds at least 10% of the shares in the company. A 0% Belgian withholding tax applies when the shareholder, beneficial owner of the income, is a U.S. company which has held directly at least 10% of the shares in the company for at least 12 months on the date the dividend is declared, or is, subject to certain conditions, a U.S. pension fund. The U.S. shareholders are encouraged to consult their own tax advisers to determine whether they can invoke the benefits and meet the limitation on benefits conditions as imposed by the U.S.-Belgium Tax Treaty.

We believe that we were a passive foreign investment company, or PFIC, for U.S. federal income tax purposes for the 2021 taxable year, but this conclusion is a factual determination that is made annually and thus may be subject to change. Because we were a PFIC for our 2021 taxable year, this could result in adverse U.S. tax consequences to certain U.S. holders.

Generally, if, for any taxable year, at least 75% of our gross income is passive income, or at least 50% of the value of our assets is attributable to assets that produce passive income or are held for the production of passive income, including cash, we would be characterized as a passive foreign investment company, or PFIC, for U.S. federal income tax purposes. For purposes of these tests, passive income includes dividends, interest, and gains from the sale or exchange of investment property and rents and royalties other than rents and royalties which are received from unrelated parties in connection with the active conduct of a trade or business. Our status as a PFIC depends on the composition of our income and the composition and value of our assets (for which purpose the total value of our assets may be determined in part by reference to the market value of the ADSs and our ordinary shares, which are subject to change) from time to time. Because we were a PFIC for the 2021 taxable year, certain U.S. holders of the ADSs may suffer adverse tax consequences, including having gains realized on the sale of the ADSs treated as ordinary income, rather than capital gain, losing the preferential rate applicable to dividends received on the ADSs by individuals who are U.S. holders, and having interest charges apply to distributions by us and the proceeds of sales of the ADSs. See “Item

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10.E.—Taxation—Certain Material U.S. Federal Income Tax Considerations to U.S. Holders—Passive Foreign Investment Company Considerations.”

Based upon the value of our assets, including any goodwill, and the composition of our income and assets, we believe that we were a PFIC for our 2021 taxable year. However, our status as a PFIC is a fact-intensive determination made on an annual basis, and we cannot provide any assurances regarding our PFIC status for the current, prior or future taxable years. Because we were a PFIC for the 2021 taxable year, we will provide information necessary for our U.S. holders to make a “qualified electing fund,” or QEF, election with respect to us for the 2021 taxable year and expect to provide such information for any subsequent year if we believe we are a PFIC. We will provide such information on our website.

We believe that we were not a controlled foreign corporation, or CFC, for U.S. federal income tax purposes for the 2021 taxable year. If we were to qualify as a CFC, this could result in adverse U.S. federal income tax consequences to certain U.S. holders.

Each “Ten Percent Shareholder” (as defined below) in a non-U.S. corporation that is classified as a “controlled foreign corporation,” or a CFC, for U.S. federal income tax purposes generally is required to include in income for U.S. federal tax purposes such Ten Percent Shareholder’s pro rata share of the CFC’s “Subpart F income” and investment of earnings in U.S. property, even if the CFC has made no distributions to its shareholders. Subpart F income generally includes dividends, interest, rents and royalties, gains from the sale of securities and income from certain transactions with related parties. For tax years beginning after December 31, 2017, each Ten Percent Shareholder of a CFC is also required to include in income such Ten Percent Shareholder’s share of “global intangible low-taxed income” with respect to such CFC. In addition, a Ten Percent Shareholder that realizes gain from the sale or exchange of shares in a CFC may be required to classify a portion of such gain as dividend income rather than capital gain. A non-U.S. corporation generally will be classified as a CFC for United States federal income tax purposes if Ten Percent Shareholders own, directly or indirectly, more than 50% of either the total combined voting power of all classes of stock of such corporation entitled to vote or of the total value of the stock of such corporation. A “Ten Percent Shareholder” is a United States person (as defined by the U.S. Internal Revenue Code of 1986, as amended (the “Code”)) who owns or is considered to own 10% or of either (1) the total combined voting power of all classes of stock entitled to vote of such corporation or (2) the total value of all classes of stock of such corporation. The determination of CFC status is complex and includes attribution rules, the application of which is not entirely certain. In addition, recent changes pursuant to U.S. tax reform to the attribution rules relating to the determination of CFC status may make it difficult to determine our CFC status for any taxable year.

We do not believe that we were a CFC for the taxable year ended December 31, 2021. Furthermore, because of recent changes pursuant to the Tax Cuts and Jobs Act, it is possible that our non-United States subsidiaries will be CFCs for the taxable year ended December 31, 2021 (or future taxable years) even if we are not a CFC for such taxable year(s). However, we cannot provide any assurances regarding our status or the status of our subsidiaries as a CFC for the 2021 taxable year or any future taxable years. U.S. holders should consult their own tax advisors with respect to the potential adverse U.S. tax consequences of becoming a Ten Percent Shareholder in a CFC. If we are classified as both a CFC and a PFIC, we generally will not be treated as a PFIC with respect to those U.S. holders that meet the definition of a Ten Percent Shareholder during the period in which we are a CFC.

We may be forced to repay the technological innovation grants if we fail to comply with our contractual obligations under the applicable grant agreements.

We have received several technological innovation grants to date, totaling €33.5 million as of December 31, 2021, to support various research programs from an agency of the Flemish government to support technological innovation in Flanders. These grants carry clauses which require us to maintain a presence in the Flemish region for a number of years and invest according to pre-agreed budgets. If we fail to comply with our contractual obligations under the applicable technological innovation grant agreements, we could be forced to repay all or part of the grants received. Such repayment could adversely affect our ability to finance our research and development projects. In addition, we cannot ensure that we will then have the additional financial resources needed, the time or the ability to replace these financial resources with others.

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We may be exposed to significant foreign exchange risk.

We hold portions of our cash and cash equivalents and current financial investments in currencies other than the euro, in particular, the U.S. dollar. We also incur portions of our expenses and derive revenues, in currencies other than the euro, in particular, the U.S. dollar. As a result, we are exposed to foreign currency exchange risk as our reporting currency is the euro. We currently do not engage in hedging transactions to protect against uncertainty in future exchange rates between particular foreign currencies and the euro. Therefore, for example, an increase in the value of the euro against the U.S. dollar could be expected to have a negative impact on our revenue and earnings growth as U.S. dollar revenue and earnings, if any, would be translated into euros at a reduced value. We cannot predict the impact of foreign currency fluctuations, and foreign currency fluctuations in the future may adversely affect our financial condition, results of operations and cash flows.

The requirements of being a U.S. public company may strain our resources and divert management’s attention.

We are required to comply with various corporate governance and financial reporting requirements under the Sarbanes-Oxley Act of 2002, the Exchange Act, and the rules and regulations adopted by the SEC and the U.S. Public Corporation Accounting Oversight Board, or PCAOB. Further, compliance with various regulatory reporting requires significant commitments of time from our management and our directors, which reduces the time available for the performance of their other responsibilities. Our failure to track and comply with the various rules may materially adversely affect our reputation, ability to obtain the necessary certifications to financial statements, lead to additional regulatory enforcement actions, and could adversely affect the value of the ADSs or our ordinary shares.

Risks related to ownership of our ordinary shares and ADSs

The market price of the ADSs could be subject to wide fluctuations.

The market price of the ADSs could be subject to wide fluctuations in response to many risk factors listed in this section, and others beyond our control, including:

● actual or anticipated fluctuations in our financial condition and operating results;

● actual or anticipated changes in our growth rate relative to our competitors;

● competition from existing products or new products that may emerge;

● announcements by us, our partners or our competitors of significant acquisitions, strategic partnerships, joint ventures, collaborations, or capital commitments;

● failure to meet or exceed financial estimates and projections of the investment community or that we provide to the public;

● issuance of new or updated research or reports by securities analysts;

● fluctuations in the valuation of companies perceived by investors to be comparable to us; share price and volume fluctuations attributable to inconsistent trading volume levels of our shares;

● additions or departures of key management or scientific personnel;

● disputes or other developments related to proprietary rights, including patents, litigation matters, and our ability to obtain patent protection for our technologies;

● changes to coverage policies or reimbursement levels by commercial third-party payers and government payers and any announcements relating to coverage policies or reimbursement levels;

● announcement or expectation of additional debt or equity financing efforts;

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● sales of the ADSs by us, our insiders or our other shareholders; and

● general economic and market conditions.

These and other market and industry factors may cause the market price and demand for the ADSs to fluctuate substantially, regardless of our actual operating performance, which may limit or prevent investors from readily selling their ADSs and may otherwise negatively affect the liquidity of our capital shares. In addition, the stock market in general, and biotechnology and biopharmaceutical companies in particular, have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of these companies.

We may be at an increased risk of securities class action litigation.

Historically, securities class action litigation has often been brought against a company following a decline in the market price of its securities. This risk is especially relevant for us because biotechnology and biopharmaceutical companies have experienced significant share price volatility in recent years. If we were to be sued, it could result in substantial costs and a diversion of management’s attention and resources, which could harm our business.

Share ownership is concentrated in the hands of our principal shareholders and management, which may have the effect of delaying or preventing a change of control of our company.

Our executive officers, directors, current 5% or greater shareholders and their affiliated entities, including Gilead Sciences, Inc. and its affiliates, together beneficially own approximately 38.55% of our ordinary shares, including shares in the form of ADSs. This concentration of ownership might have the effect of delaying or preventing a change of control of our company that other shareholders may view as beneficial.

Fluctuations in the exchange rate between the U.S. dollar and the euro may increase the risk of holding the ADSs.

Our shares currently trade on Euronext Brussels and Euronext Amsterdam in euros, while the ADSs trade on Nasdaq in U.S. dollars. Fluctuations in the exchange rate between the U.S. dollar and the euro may result in temporary differences between the value of the ADSs and the value of our ordinary shares, which may result in heavy trading by investors seeking to exploit such differences.

In addition, as a result of fluctuations in the exchange rate between the U.S. dollar and the euro, the U.S. dollar equivalent of the proceeds that a holder of the ADSs would receive upon the sale in Belgium of any shares withdrawn from the depositary and the U.S. dollar equivalent of any cash dividends paid in euros on our shares represented by the ADSs could also decline.

If securities or industry analysts do not publish research or publish inaccurate research or unfavorable research about our business, the price of the ordinary shares and ADSs and trading volume could decline.

The trading market for the ordinary shares and ADSs depends in part on the research and reports that securities or industry analysts publish about us or our business. If no or few securities or industry analysts cover our company, the trading price for the ordinary shares and ADSs would be negatively impacted. If one or more of the analysts who covers us downgrades the ordinary shares and ADSs or publishes incorrect or unfavorable research about our business, the price of the ordinary shares and ADSs would likely decline. If one or more of these analysts ceases coverage of our company or fails to publish reports on us regularly, or downgrades the ordinary shares and ADSs, demand for the ordinary shares and ADSs could decrease, which could cause the price of the ordinary shares and ADSs or trading volume to decline.

We have no present intention to pay dividends on our ordinary shares in the foreseeable future and, consequently, your only opportunity to achieve a return on your investment during that time is if the price of the ADSs appreciates.

We have no present intention to pay dividends in the foreseeable future. Any recommendation by our supervisory board to pay dividends will depend on many factors, including our financial condition (including losses carried-forward), results of operations, legal requirements and other factors. Furthermore, pursuant to Belgian law, the calculation of amounts available for distribution to shareholders, as dividends or otherwise, must be determined on the basis of our non-consolidated statutory accounts prepared in accordance with Belgian accounting rules. In addition, in accordance with Belgian law and our articles of association, we must allocate each year an amount of at least 5% of our annual net

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profit under our non-consolidated statutory accounts to a legal reserve until the reserve equals 10% of our share capital. Therefore, we are unlikely to pay dividends or other distributions in the foreseeable future. If the price of the ADSs declines before we pay dividends, you will incur a loss on your investment, without the likelihood that this loss will be offset in part or at all by potential future cash dividends.

Future sales of ordinary shares or ADSs by existing shareholders could depress the market price of the ordinary shares and ADSs.

If our existing shareholders sell, or indicate an intent to sell, substantial amounts of ordinary shares or ADSs in the public market, the trading price of the ADSs could decline significantly. As of March 15, 2022, 48,845,244 shares were eligible for sale in the public market, 520,247 of which shares were held by directors, executive officers and other affiliates and are subject to volume limitations under Rule 144 under the Securities Act. In addition, the ordinary shares subject to outstanding warrants will become eligible for sale in the public market in the future, subject to certain legal and contractual limitations. We have filed registration statements on Form S-8 with the SEC covering ordinary shares available for future issuance under our warrant plans. Sales of a large number of the shares issued under these plans in the public market could have an adverse effect on the market price of the ADSs.

We are a Belgian public limited liability company, and shareholders of our company may have different and in some cases more limited shareholder rights than shareholders of a U.S. listed corporation.

We are a public limited liability company incorporated under the laws of Belgium. Our corporate affairs are governed by Belgian corporate law. The rights provided to our shareholders under Belgian corporate law and our articles of association differ in certain respects from the rights that you would typically enjoy as a shareholder of a U.S. corporation under applicable U.S. federal and state laws.

Under Belgian corporate law, other than certain limited information that we must make public and except in certain limited circumstances, our shareholders may not ask for an inspection of our corporate records, while under Delaware corporate law any shareholder, irrespective of the size of its shareholdings, may do so. Shareholders of a Belgian corporation are also unable to initiate a derivative action, a remedy typically available to shareholders of U.S. companies, in order to enforce a right of our company, in case we fail to enforce such right ourselves, other than in certain cases of director liability under limited circumstances. In addition, a majority of our shareholders present or represented at our meeting of shareholders may release a supervisory board member from any claim of liability we may have, including if he or she has acted in bad faith or has breached his or her duty of loyalty, provided, in some cases, that the relevant acts were specifically mentioned in the convening notice to the meeting of shareholders deliberating on the discharge. In contrast, most U.S. federal and state laws prohibit a company or its shareholders from releasing a director from liability altogether if he or she has acted in bad faith or has breached his or her duty of loyalty to the company. Finally, Belgian corporate law does not provide any form of appraisal rights in the case of a business combination. Please see the section of this annual report titled “Item 10.B.—Memorandum and Articles of Association.”

As a result of these differences between Belgian corporate law and our articles of association, on the one hand, and the U.S. federal and state laws, on the other hand, in certain instances, you could receive less protection as an ADS holder of our company than you would as a shareholder of a listed U.S. company.

Takeover provisions in Belgian law may make a takeover difficult.

Public takeover bids on our shares and other voting securities, such as subscription rights or convertible bonds, if any, are subject to the Belgian Act of April 1, 2007 and to the supervision by the Belgian Financial Services and Markets Authority, or FSMA. Public takeover bids must be made for all of our voting securities, as well as for all other securities that entitle the holders thereof to the subscription to, the acquisition of or the conversion into voting securities. Prior to making a bid, a bidder must issue and disseminate a prospectus, which must be approved by the Belgian FSMA. The bidder must also obtain approval of the relevant competition authorities, where such approval is legally required for the acquisition of our company.

The Belgian Act of April 1, 2007 provides that a mandatory bid will be triggered if a person, as a result of its own acquisition or the acquisition by persons acting in concert with it or by persons acting on their account, directly or indirectly holds more than 30% of the voting securities in a company that has its registered office in Belgium and of which at least part of the voting securities are traded on a regulated market or on a multilateral trading facility designated

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by the Royal Decree of April 27, 2007 on public takeover bids. The mere fact of exceeding the relevant threshold through the acquisition of one or more shares will give rise to a mandatory bid, irrespective of whether or not the price paid in the relevant transaction exceeds the current market price.

There are several provisions of Belgian company law and certain other provisions of Belgian law, such as the obligation to disclose important shareholdings and merger control, that may apply to us and which may make an unfriendly tender offer, merger, change in management or other change in control, more difficult. These provisions could discourage potential takeover attempts that third parties may consider and thus deprive the shareholders of the opportunity to sell their shares at a premium (which is typically offered in the framework of a takeover bid).

Holders of the ADSs are not treated as shareholders of our company, do not have the same voting rights as the holders of our ordinary shares and may not receive voting materials in time to be able to exercise your right to vote.

Holders of the ADSs are not treated as shareholders of our company, unless they withdraw our ordinary shares underlying the ADSs. The depositary, or its nominee, is the holder of the ordinary shares underlying the ADSs. Holders of ADSs therefore do not have any rights as shareholders of our company, other than the rights that they have pursuant to the deposit agreement.

Holders of ADSs may exercise voting rights with respect to the ordinary shares represented by the ADSs only in accordance with the provisions of the deposit agreement. The deposit agreement provides that, upon receipt of notice of any meeting of holders of our ordinary shares, the depositary will fix a record date for the determination of ADS holders who shall be entitled to give instructions for the exercise of voting rights. Upon timely receipt of notice from us, if we so request, the depositary shall distribute to the holders as of the record date (1) the notice of the meeting or solicitation of consent or proxy sent by us and (2) a statement as to the manner in which instructions may be given by the holders.

Holders of ADSs may instruct the depositary of their ADSs to vote the ordinary shares underlying their ADSs. Otherwise, ADS holders will not be able to exercise their right to vote, unless they withdraw the ordinary shares underlying the ADSs they hold. However, ADS holders may not know about the meeting far enough in advance to withdraw those ordinary shares. We cannot guarantee ADS holders that they will receive the voting materials in time to ensure that they can instruct the depositary to vote their ordinary shares or to withdraw their ordinary shares so that they can vote them themselves. In addition, the depositary and its agents are not responsible for failing to carry out voting instructions or for the manner of carrying out voting instructions. This means that ADS holders may not be able to exercise their right to vote, and there may be nothing they can do if the ordinary shares underlying their ADSs are not voted as they requested.

We may not be able to complete equity offerings without cancellation or limitation of the preferential subscription rights of our existing shareholders, which may as a practical matter preclude us from timely completion of offerings.

In accordance with the Belgian Companies Code, our articles of association provide for preferential subscription rights to be granted to our existing shareholders to subscribe on a pro rata basis for any issue for cash of new shares, convertible bonds or subscription rights that are exercisable for cash, unless such rights are cancelled or limited either by resolution of our shareholders’ meeting or by our supervisory board in the framework of the authorized capital, as described below. The extraordinary shareholders’ meeting authorized the board of directors to increase the share capital of Galapagos NV, in one or several times, and under certain conditions set forth in extenso in our articles of association. We refer to this authority for our board to increase our share capital as our authorized capital. This authorization consists of two parts. A general authorization for capital increases up to 20% of the share capital at the time of convening the shareholders’ meeting of October 22, 2019 (i.e. €67,022,402.04) was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State Gazette, i.e. November 13, 2019. A specific authorization for capital increases of more than 20% and up to 33% of the share capital at the time of the convening the shareholders' meeting of April 25, 2017 (i.e. €82,561,764.93), was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State Gazette, i.e. May 31, 2017. This specific part of the authorized capital can, however, only be used in a number of specific circumstances and upon a resolution of the supervisory board that all independent members within the meaning of article 7:87 of the Belgian Companies Code) approve. As of the date of this annual report, our supervisory board may decide to issue up to 6,691,846 ordinary shares pursuant to the general authorization and 2,535,661 ordinary shares pursuant to the specific authorization, without taking into account however subsequent issuances under our subscription right programs or otherwise. Please see the section of this annual report titled “Item 10.B.—Memorandum and Articles of Association.” Absent renewal by our shareholders of

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this authorization of the board or absent cancellation or limitation by our shareholders of the preferential subscription rights of our existing shareholders, the requirement to offer our existing shareholders the preferential right to subscribe, pro rata, for new shares being offered may as a practical matter preclude us from timely raising capital on commercially acceptable terms or at all.

Shareholders may not be able to participate in equity offerings we may conduct from time to time.

If we conduct equity offerings in the future, certain shareholders, including those in the United States, may, even in the case where preferential subscription rights have not been cancelled or limited, not be entitled to exercise such rights, unless the offering is registered or the shares are qualified for sale under the relevant regulatory framework. As a result, there is the risk that investors may suffer dilution of their shareholdings should they not be permitted to participate in preference right equity or other offerings that we may conduct in the future.

Holders of ADSs may be subject to limitations on the transfer of their ADSs and the withdrawal of the underlying ordinary shares.

ADSs are transferable on the books of the depositary. However, the depositary may close its books at any time or from time to time when it deems expedient in connection with the performance of its duties. The depositary may refuse to deliver, transfer or register transfers of ADSs generally when our books or the books of the depositary are closed, or at any time if we or the depositary think it is advisable to do so because of any requirement of law, government or governmental body, or under any provision of the deposit agreement, or for any other reason, subject to the right of ADS holders to cancel their ADSs and withdraw the underlying ordinary shares. Temporary delays in the cancellation of your ADSs and withdrawal of the underlying ordinary shares may arise because the depositary has closed its transfer books or we have closed our transfer books, the transfer of ordinary shares is blocked to permit voting at a shareholders’ meeting or we are paying a dividend on our ordinary shares. In addition, ADS holders may not be able to cancel their ADSs and withdraw the underlying ordinary shares when they owe money for fees, taxes and similar charges and when it is necessary to prohibit withdrawals in order to comply with any laws or governmental regulations that apply to ADSs or to the withdrawal of ordinary shares or other deposited securities.

As a foreign private issuer, we are exempt from a number of rules under the U.S. securities laws and are permitted to file less information with the SEC than a U.S. company. This may limit the information available to holders of ADSs or our ordinary shares.

We are a “foreign private issuer,” as defined in the SEC’s rules and regulations and, consequently, we are not subject to all of the disclosure requirements applicable to public companies organized within the United States. For example, we are exempt from certain rules under the Exchange Act, that regulate disclosure obligations and procedural requirements related to the solicitation of proxies, consents or authorizations applicable to a security registered under the Exchange Act, including the U.S. proxy rules under Section 14 of the Exchange Act. In addition, our officers and directors are exempt from the reporting and “short-swing” profit recovery provisions of Section 16 of the Exchange Act and related rules with respect to their purchases and sales of our securities. Moreover, while we currently make annual and semi-annual filings with respect to our listing on Euronext Brussels and Euronext Amsterdam and voluntarily report our results of operations on a quarterly basis, we will not be required to file periodic reports and financial statements with the SEC as frequently or as promptly as U.S. domestic issuers and will not be required to file quarterly reports on Form 10-Q or current reports on Form 8-K under the Exchange Act. Accordingly, there is and will continue to be less publicly available information concerning our company than there would be if we were not a foreign private issuer.

As a foreign private issuer, we are permitted to adopt certain home country practices in relation to corporate governance matters that differ significantly from Nasdaq corporate governance listing standards. These practices may afford less protection to shareholders than they would enjoy if we complied fully with corporate governance listing standards.

As a foreign private issuer listed on the Nasdaq Global Select Market, we are subject to corporate governance listing standards. However, rules permit a foreign private issuer like us to follow the corporate governance practices of its home country. Certain corporate governance practices in Belgium, which is our home country, may differ significantly from corporate governance listing standards. For example, neither the corporate laws of Belgium nor our articles of association require a majority of our supervisory board members to be independent and we could include non-independent board members as members of our nomination and remuneration committee, and our independent board

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members would not necessarily hold regularly scheduled meetings at which only independent board members are present. Currently, we intend to follow home country practice to the maximum extent possible. Therefore, our shareholders may be afforded less protection than they otherwise would have under corporate governance listing standards applicable to U.S. domestic issuers. See the sections of this annual report titled “Item 6—Directors, Senior Management and Employees” and “Item 16G —Corporate Governance.”

We may lose our foreign private issuer status in the future, which could result in significant additional cost and expense.

While we currently qualify as a foreign private issuer, the determination of foreign private issuer status is made annually on the last business day of an issuer’s most recently completed second fiscal quarter and, accordingly, the next determination will be made with respect to us on June 30, 2022.

In the future, we would lose our foreign private issuer status if we to fail to meet the requirements necessary to maintain our foreign private issuer status as of the relevant determination date. In order to maintain our current status as a foreign private issuer, either (a) a majority of our ordinary shares must be either directly or indirectly owned of record by non-residents of the United States or (b) (i) a majority of our executive officers or directors may not be U.S. citizens or residents, (ii) more than 50% of our assets cannot be located in the United States and (iii) our business must be administered principally outside the United States. As of March 15, 2022, a majority of our executive officers and directors are not U.S. citizens or residents.

The regulatory and compliance costs to us under U.S. securities laws as a U.S. domestic issuer may be significantly more than costs we incur as a foreign private issuer. If we are not a foreign private issuer, we will be required to file periodic reports and registration statements on U.S. domestic issuer forms with the SEC, which are more detailed and extensive in certain respects than the forms available to a foreign private issuer. We would be required under current SEC rules to prepare our financial statements in accordance with U.S. GAAP, rather than IFRS, in U.S. dollars rather than euros and modify certain of our policies to comply with corporate governance practices associated with U.S. domestic issuers. Such conversion of our financial statements to U.S. GAAP will involve significant time and cost. In addition, we may lose our ability to rely upon exemptions from certain corporate governance requirements on U.S. stock exchanges that are available to foreign private issuers such as the ones described above and exemptions from procedural requirements related to the solicitation of proxies.

It may be difficult for investors outside Belgium to serve process on, or enforce foreign judgments against, us or our directors and senior management.

We are a Belgian public limited liability company. Less than a majority of the members of our supervisory board and members of our management board are residents of the United States. All or a substantial portion of the assets of such non-resident persons and most of our assets are located outside the United States. As a result, it may not be possible for investors to effect service of process upon such persons or on us or to enforce against them or us a judgment obtained in U.S. courts. Original actions or actions for the enforcement of judgments of U.S. courts relating to the civil liability provisions of the federal or state securities laws of the United States are not directly enforceable in Belgium. The United States and Belgium do not currently have a multilateral or bilateral treaty providing for reciprocal recognition and enforcement of judgments, other than arbitral awards, in civil and commercial matters. In order for a final judgment for the payment of money rendered by U.S. courts based on civil liability to produce any effect on Belgian soil, it is accordingly required that this judgment be recognized or be declared enforceable by a Belgian court in accordance with Articles 22 to 25 of the 2004 Belgian Code of Private International Law. Recognition or enforcement does not imply a review of the merits of the case and is irrespective of any reciprocity requirement. A U.S. judgment will, however, not be recognized or declared enforceable in Belgium if it infringes upon one or more of the grounds for refusal that are exhaustively listed in Article 25 of the Belgian Code of Private International Law. Actions for the enforcement of judgments of U.S. courts might be successful only if the Belgian court confirms the substantive correctness of the judgment of the U.S. court and if it is satisfied that:

● the effect of the enforcement judgment is not manifestly incompatible with Belgian public policy;

● the judgment did not violate the rights of the defendant;

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● the judgment was not rendered in a matter where the parties transferred rights subject to transfer restrictions with the sole purpose of avoiding the application of the law applicable according to Belgian international private law;

● the judgment is not subject to further recourse under U.S. law;

● the judgment is not compatible with a judgment rendered in Belgium or with a subsequent judgment rendered abroad that might be enforced in Belgium;

● a claim was not filed outside Belgium after the same claim was filed in Belgium, while the claim filed in Belgium is still pending;

● the Belgian courts did not have exclusive jurisdiction to rule on the matter;

● the U.S. court did not accept its jurisdiction solely on the basis of either the nationality of the defendant or the location of the disputed goods; and

● the judgment submitted to the Belgian court is authentic.

In addition to recognition or enforcement, a judgment by a federal or state court in the United States against us may also serve as evidence in a similar action in a Belgian court if it meets the conditions required for the authenticity of judgments according to the law of the state where it was rendered. The findings of a federal or state court in the United States will not, however, be taken into account to the extent they appear incompatible with Belgian public policy.

Item 4     Information on the Company

A.     History and development of the Company

Our legal and commercial name is Galapagos NV. We are a limited liability company incorporated in the form of a “naamloze vennootschap” / “société anonyme” under Belgian law. We were incorporated in Belgium on June 30, 1999 for an unlimited duration. We are registered with the Register of Legal Entities (Antwerp, division Mechelen) under the enterprise number 0466.460.429. Our principal executive and registered offices are located at Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium and our telephone number is +32 15 342 900. Our agent for service of process in the United States is C T Corporation System, located at 28 Liberty Street, New York, New York, 10005, United States of America.

Our fiscal year ends December 31. We also maintain a corporate website at www.glpg.com. Information contained on, or that can be accessed through, our website does not constitute a part of this annual report. We have included our website address in this annual report solely as an inactive textual reference.

The SEC maintains a website (www.sec.gov) that contains reports, proxy and information statements and other information regarding registrants, such as Galapagos NV, that file electronically with the SEC.

We are currently operating as a single operating segment. Prior to the disposal of Fidelta we had two reportable segments, R&D and fee-for-service business. On January 4, 2021 however we sold our Croatian subsidiary and fee for service business Fidelta to Selvita, who acquired 100% of the outstanding shares in Fidelta. Due to the disposal of Fidelta (our fee-for-service segment), we have reported this segment as discontinued operations.

Our actual capital expenditures for the years ended December 31, 2019, 2020, and 2021 amounted to €45.7 million, €91.3 million, and €57.9 million respectively. These capital expenditures primarily consisted of land, buildings, laboratory equipment, leasehold improvements, and intangible assets. We anticipate our capital expenditure in 2022 to be financed from our cash reserves. For more information on our capital expenditures, see the section of this annual report titled “Item 5.B.—Liquidity and capital resources—capital expenditures.”

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B.     Business overview

We are an integrated biopharmaceutical company active in the discovery, development, and commercialization of medicines with novel modes of action, several of which are currently in clinical development in multiple diseases with high unmet medical need. Our highly flexible discovery platform is applicable across many therapeutic areas.

Having achieved approval in the European Union, Great Britain, and Japan for our first ever medicine in RA, and approval in the European Union, and Great Britain in UC, we remain highly committed to progressing our pipeline of drug candidates to address unmet medical needs and improve the lives of millions. We refocused our product portfolio by critically examining the risk profile and breadth of the pipeline.

Our differentiated clinical pipeline includes: 1) preferential JAK1 inhibitor filgotinib, which is approved for the treatment of RA in the European Union, Great Britain, and Japan, approved for the treatment of UC in the European Union and Great Britain and submitted for approval in UC in Japan, and currently in a Phase 3 trial in CD; 2) GLPG3667, a TYK2 inhibitor which showed activity in a Phase 1b study in Pso in 2021; 3) GLPG4399, a SIK3 inhibitor currently in Phase 1; 4) GLPG4716, a chitinase inhibitor in-licensed from OncoArendi, for which we anticipate to start a Phase 2 study in lung fibrosis; and 5) GLPG2737, a CFTR-inhibitor, currently in Phase 2 in ADPKD.

In both our inflammation and fibrosis portfolios, we have multiple novel mechanism of action candidates in early research. These programs are almost exclusively based on inhibiting targets which were identified using our target discovery platform.

Below is an overview of our current key pipeline assets:

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Lead programs

Our first approved medicine: Jyseleca (filgotinib): preferential JAK1 inhibitor with a potential best-in-class product profile

In 2021, we made significant progress with our Jyseleca (filgotinib) franchise. In September, we celebrated Jyseleca’s first year on the market following the approval for the treatment of adult patients with moderate to severe active RA in the European Union, Great Britain, and Japan. Following the amended agreement with Gilead from late 2020, we successfully completed the transfer of commercial activities from Gilead, and we are the proud MAH of Jyseleca in the EEA and Great Britain since December 2021. In addition, filgotinib is now also approved in the European Union and Great Britain for the treatment of adult patients with moderate to severe UC, adding a second indication for filgotinib.

After years of hard work by so many, we are very excited to bring a new treatment option to patients living with RA and UC throughout Europe.

The market for anti-inflammatory drugs in Europe is considerable: it is estimated that the inflammation market today in the five largest European markets is worth approximately €6.1 billion, with about 50% of the current market going to RA therapies and about 50% to UC and CD combined.

About Jyseleca in RA

RA is a chronic autoimmune disease that affects more than three million patients in the United States and Europe. RA is characterized by inflammation and degeneration of the joints. Patients suffer from pain, stiffness, and restricted mobility due to a persistent inflammation of multiple joints, ultimately resulting in irreversible damage of the joint cartilage and bone. The current market for RA treatments in the EU5 is approximately €3.3 billion, with 60% of patients treated with advanced therapies, including injectables, biological therapies and tsDMARDS.¹

Despite progress in the treatment of RA, there remains a considerable unmet need as sustained remission is rare.²

Oral therapies targeting the Janus kinase (JAK) signaling pathway are approved to treat inflammatory diseases. In 2003, we discovered JAK1 as a novel, differentiated target in an inflammation target discovery assay and subsequently developed filgotinib as a novel small molecule inhibitor with preferential selectivity for JAK1.

Within the commercial space of the RA market in the EU5, we observe an expanding market share for JAK inhibitors, compared to anti-TNF and other biologics. To date there are 4 JAK inhibitors approved for the treatment of RA in EU5, including Jyseleca as a JAK1 preferential inhibitor. The growth of the JAK class can be seen in both the total and dynamic (switchers and naïve patients) market share, as shown in the figure below.

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¹Targeted synthetic disease-modifying antirheumatic drugs

²Chen Y, et al. Clin Rheumatol. 2019 Mar;38(3):727-738. doi: 10.1007/s10067-018-4340-7. Epub 2018 Oct 19

Regulatory approvals of Jyseleca in RA

In September 2020, Jyseleca (filgotinib 200mg and 100mg) obtained approval in the European Union, Great Britain, and Japan for the treatment of adult patients with moderate to severe active RA.

The European Summary of Product Characteristics for filgotinib, which includes contraindications and special warnings and precautions, is available at www.ema.europa.eu. The interview form from the Japanese Ministry of Health, Labour and Welfare is available at www.info.pmda.go.jp. The individual Great Britain and Northern Ireland Summary of Product Characteristics can be found at www.medicines.org.uk/emc and www.emcmedicines.com/en-GB/northernireland respectively.

In 2020, Gilead received a Complete Response Letter (CRL) from the U.S. FDA for the New Drug Application (NDA) for filgotinib. Consequently, Gilead decided not to advance with resubmission in the U.S. for approval of filgotinib as a treatment for RA.

Commercialization of Jyseleca in RA

In 2021, we took full ownership of the manufacturing and commercialization of Jyseleca in Europe and became MAH in 27 European countries, Iceland, Norway, and Liechtenstein. The medicine is now reimbursed in 14 countries, including the major markets of Germany, France, Spain, Italy, and Great Britain. In Central and Eastern Europe, Portugal, Greece and the Baltic countries, our partner Sobi is responsible for the distribution and commercialization. The graphic below represents the reimbursement progress throughout Europe since approval in September 2020. See details on the Gilead collaboration on filgotinib in “Collaborations”.

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Following the amended agreement, Gilead remains responsible for Jyseleca outside of Europe, including in Japan where Jyseleca is approved in RA and is co-marketed with Eisai.

Safety and efficacy in the filgotinib RA development program

Filgotinib has shown favorable results in terms of onset of action, efficacy, safety, and tolerability from the FINCH Phase 3 and DARWIN Phase 2 clinical study programs.

As part of the filgotinib development program we initiated FINCH 4 in RA. The FINCH 4 study is a multi-center, open-label, long-term extension study to assess the safety and efficacy of filgotinib in patients with RA, enrolling subjects who completed either FINCH 1, FINCH 2, or FINCH 3 studies.

We and Gilead published integrated safety data from 7 RA studies in Annals of the Rheumatic Diseases (Winthrop et al 2021). Data were integrated from 3 Phase 3 studies (FINCH 1–3), 2 Phase 2 studies (DARWIN 1, 2), and 2 long-term extension studies (DARWIN 3, FINCH 4) including up to 5.6 years of filgotinib exposure, and over a median of 1.6 years. In this pooled analysis, filgotinib was well-tolerated, and no new safety concerns were identified. Adverse events of MACE and DVT/PE were rare and occurred in similar numbers among all treatment groups, and with similar incidence rate across dose groups. The data highlight the acceptable safety and tolerability profile of filgotinib as monotherapy and in conjunction with MTX/csDMARDs² in RA.

In animal toxicology studies in the preclinical phase, filgotinib at an exposure dose above the approved dose in humans induced adverse effects on semen parameters. Consequently, Gilead and Galapagos committed to conducting dedicated male patient semen analysis studies in RA, AS, and PsA patients, called MANTA-RAy and in UC and CD patients called MANTA, concurrent to all Phase 3 programs.

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In March 2021, we were pleased to report on the primary endpoint with the MANTA and MANTA-RAy studies investigating the effect on semen parameters, indicating that 8.3% of patients on placebo and 6.7% of patients on 200mg filgotinib had a 50% or more decline in sperm concentration at week 13.

² csDMARD, conventional synthetic disease-modifying antirheumatic drugs

About Jyseleca in UC

UC is an inflammatory bowel disease resulting in ulcerations and inflammation of the inner layer of the colon and rectum. The current market for UC treatments is estimated at ~€1.0 billion in the five largest European markets.

Biologic therapies for UC were dominated by tumor necrosis factor (TNF) antagonists for nearly 20 years, but anti-integrin and anti-interleukin (IL)-12/IL-23 antibodies have recently become available. Although the introduction of advanced therapies has improved the treatment of some patients, 30% of patients do not respond to treatment,¹ and 19% to 59% of initial responders don’t have a sustainable treatment response.^{2, 3} Therefore, the medical need for improved treatment efficacy with additional treatment options remains high.

¹ Allez M et al. Report of the ECCO pathogenesis workshop on anti-TNF therapy failures in inflammatory bowel diseases: definitions, frequency and pharmacological aspects. J Crohns Colitis. 2010 Oct;4(4):355-66

²Ma C et al. Outpatient Ulcerative Colitis Primary Anti-TNF Responders Receiving Adalimumab or Infliximab Maintenance Therapy Have Similar Rates of Secondary Loss of Response. J Clin Gastroenterol. 2015 Sep;49(8):675-82

³Ma C et al. Outpatient Ulcerative Colitis Primary Anti-TNF Responders Receiving Adalimumab or Infliximab Maintenance Therapy Have Similar Rates of Secondary Loss of Response. J Clin Gastroenterol. 2015 Sep;49(8):675-82

Commercialization and regulatory progress of Jyseleca in UC

Following approval of Jyseleca (200mg) for the treatment of adults with moderate to severe UC in the European Union in 2021 and in January 2022 in Great Britain, Jyseleca is now launched in UC in Germany and the Netherlands, with roll-out throughout the rest of Europe anticipated this year.

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The European Summary of Product Characteristics for filgotinib, which includes contraindications and special warnings and precautions, is available at www.ema.europa.eu. The individual Great Britain and Northern Ireland Summary of Product Characteristics can be found at www.medicines.org.uk/emc and www.emcmedicines.com/en-GB/northernireland respectively.

Gilead is responsible for Jyseleca outside Europe and submitted the new drug application in Japan for filgotinib in UC to the Pharmaceuticals and Medical Devices Agency (PMDA) in the first half of 2021. A decision on its potential approval is anticipated in the first half of 2022.

Safety and efficacy in the filgotinib UC development program

Filgotinib 200mg has shown favorable results in terms of rapid onset of action, efficacy, safety, and tolerability from the SELECTION Phase 3 program in patients with moderate to severe UC. The SELECTION Phase 3 data (Feagan et al. 2021) were published in The Lancet.

Both in biologic-naïve and in biologic-experienced patients a rapid onset of action for filgotinib 200mg at week 2, with a sustained effect up to 10 weeks, was observed in a pre-specified exploratory analysis of the SELECTION study. The graph below shows the rapid onset in both cohorts using the partial Mayo Clinic Score.

Additionally, data from a post hoc analysis of the maintenance study showed a greater proportion of biologic-naïve and biologic-experienced patients receiving filgotinib 200mg maintained clinical remission up to 58 weeks versus those receiving placebo (37% versus 11% p<0.001) and had histologic remission (38% versus 13% p<0.001), 6-month

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corticosteroid-free clinical remission (27% versus 6% p<0.01), as shown in the graph below, and published in The Lancet (Feagan et al. 2021).

We presented a set of new data from the SELECTION study and SELECTION long-term extension study in UC at the European Crohn’s and Colitis Organisation (ECCO) 2022 annual conference. The key findings were:

(1) Continued treatment with filgotinib for up to additional 96 weeks in the long-term extension study was effective in maintaining long-term improvements in UC symptoms;

(2) Retreatment with filgotinib upon interruption, resulted in recovery of efficacy in most patients and that filgotinib was well tolerated with no new safety concern;

(3) Filgotinib’s efficacy profile was consistent and the safety profile acceptable regardless of the age group, analysing patients with up to 75 years of age;

(4) Filgotinib was able to achieve the high bar of efficacy as defined by a combined endpoint of clinical and quality of life (QoL) remission, endoscopic and biomarker improvement.

Furthermore, additional safety data from the SELECTION studies were presented at the 16^th European Crohn’s and Colitis Organisation (ECCO) 2021 virtual congress (Schreiber et al. 2021). Data were analyzed from the SELECTION induction, maintenance, and long-term extension study with a cumulative treatment exposure of 1,207 patient years for filgotinib 200mg versus 318 patient years for placebo, showing results consistent with the original induction and maintenance studies, where filgotinib was well tolerated in patients with moderately to severely active UC.

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About filgotinib in CD

FITZROY Phase 2 and global DIVERSITY Phase 3 program in CD

CD is an IBD of unknown cause, resulting in chronic inflammation of the gastrointestinal (GI) tract with a relapsing and remitting course. The market today for CD treatments is estimated to approximately €1.8 billion in the five largest European markets.

Today, with the most advanced therapies, only 30-40% of CD patients on treatment achieve prolonged clinical remission. There are currently no highly effective oral therapies approved for CD and, like RA, treatment is dominated by injectable, biological treatments including anti-TNF therapies. Anti-TNF agents have improved the management of CD; however, not all patients respond to these drugs, and secondary loss of response during the first year is reported in up to 50% of patients annually in placebo-controlled trials. Therefore, a considerable unmet need remains with existing treatments.

Dysregulation of the JAK signaling pathway has also been associated with CD, which suggests that filgotinib, with its preferential selectivity for JAK1, may offer an attractive alternative for the treatment of CD. It is hypothesized that with preferential inhibition of JAK1, unwanted side effects such as anemia may be reduced. This is of particular importance to IBD patients, who frequently experience fecal blood loss.

The FITZROY Phase 2 trial (NCT02048618) evaluated the efficacy and safety of 200mg once-daily filgotinib in 174 patients with moderate to severe active CD and mucosal ulceration, who were either anti-TNF naive or anti-TNF failures. As reported in The Lancet (Vermeire et al. 2016), the FITZROY trial achieved the primary endpoint of clinical remission at week 10, and filgotinib demonstrated a favorable tolerability profile consistent with the DARWIN trials in RA. 

Gilead initiated the Phase 3 DIVERSITY trial (NCT02914561) with filgotinib in CD in November 2016. In October 2021, we announced the completion of patient enrollment with topline data anticipated in the first half of 2023. The DIVERSITY Phase 3 trial investigates the efficacy and safety of 100mg and 200mg filgotinib once-daily compared to placebo in patients with moderate to severe active disease including those with prior antibody therapy failure. The DIVERSITY trial enrolled 1,374 patients from the U.S., Europe, Latin America, Canada, and Asia/Pacific regions. Men and women in the DIVERSITY trial will be randomized to receive placebo, 100mg, or 200mg filgotinib. Due to preclinical findings with filgotinib regarding semen parameters, in the U.S. randomization to 200mg was restricted to male patients who failed at least one anti-TNF therapy and vedolizumab.

Following the amended agreement with Gilead, Galapagos will become the sole sponsor of the DIVERSITY trial and the long-term extension study. The parties intend to complete the transfer no later than 30 June 2022. Under the terms of the agreement and upon completion of the transfer, Gilead will make a one-time payment of $15 million to Galapagos. From 1 April 2022, Galapagos will also be solely responsible for all development costs for DIVERSITY. In addition, if the EMA grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY trial, then royalties payable by Galapagos to Gilead will be reduced by 30% across all filgotinib indications

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and will become 5.6 to 10.5% of net sales in Europe. These royalties are payable as of 2024. Gilead remains responsible for commercial activities outside of Europe.

Adjacent to the filgotinib Phase 3 programs, we and Gilead are conducting dedicated studies evaluating the potential impact of filgotinib on semen parameters in male CD and UC patients (MANTA) and in male RA, PsA, and AS patients (MANTA-RAy).

In March 2017, Gilead initiated a Phase 2 study in small bowel CD (DIVERGENCE 1, NCT03046056) and a Phase 2 study in fistulizing CD (DIVERGENCE 2, NCT03077412). Gilead stopped recruitment in DIVERGENCE 1 early, completing the randomized, placebo controlled trial at week 10 for 46 patients, 75% of whom were biologic experienced. Filgotinib demonstrated a similar level of CDAI remission in DIVERGENCE 1 as in the TNF experienced cohort of the FITZROY Phase 2 study in CD (see graph below).

CDAI remission in DIVERGENCE 1

Notes: data on file, CDAI remission = CDAI <150, recruitment for the DIVERGENCE 1 study was stopped early.

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Our TYK2 program with GLPG3667

GLPG3667 is a reversible and selective TYK2 kinase domain inhibitor discovered by us.

In 2020, we tested the molecule in a healthy volunteer study. This Phase 1 study was a randomized, double-blind, placebo-controlled dose escalation study evaluating safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of single and multiple ascending oral doses of GLPG3667 for 13 days. Blood was drawn at multiple time points on Day 1 and on Day 10 and stimulated ex vivo with several cytokines, including IFNα, to analyze the level of inhibition in pSTAT signaling. The Phase 1 data showed an encouraging PK profile for once-daily dosing and PD activity of GLPG3667:

Following these results, we initiated a randomized, placebo-controlled, double-blind Phase 1b study in 31 patients with moderate to severe plaque psoriasis. Patients were randomized in a 1:1:1 ratio to a daily oral dose of GLPG3667 (low dose or high dose) or placebo, for a total of 4 weeks.

In July 2021, we announced positive topline results demonstrating that GLPG3667 was generally well tolerated with a positive efficacy signal at week 4:

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● At week 4, four out of 10 patients in the high dose group had a PASI 50 response, defined as at least a 50% improvement in PASI from baseline, compared to one out of 10 subjects on placebo. There were no subjects with a PASI 50 response on the low dose of GLPG3667. The 4 responders in the high dose group of GLPG3667 achieved a 52%, 65%, 74% and 81% improvement respectively in their PASI scores from baseline, while the subject randomized to placebo improved by 52%. Positive efficacy signals were also observed with the high dose for other endpoints, including affected Body Surface Area and physician and patient global assessment, versus placebo at week 4.

● One subject in the low dose group interrupted participation in the study for one day for exacerbation of psoriasis. The majority of treatment related adverse events (AEs) were mild in nature and transient. There were no deaths or serious adverse events (SAEs) in this 4-week study.

We are currently completing a dose escalation Phase 1 study to determine the optimal dose to progress into a Phase 2 program, which is planned in 2022.

Our SIK program

The Salt-Inducible Kinases (SIKs) belong to a novel target class in inflammation which we discovered with our target discovery platform. The search for this novel target class started with the ambition to find new anti-inflammatory drug candidates with a favorable efficacy and safety profile relative to existing therapies. Although significant progress has been made with novel therapies in recent years, for instance in psoriasis, there remains a high unmet need for diseases related to overactive inflammation in joints, the bowel, and other organs.

Molecules discovered by us and which inhibit the different members of the SIK family have shown the potential to modulate anti-inflammatory cytokines and pro-inflammatory cytokines. Targeted and selective inhibition of SIK proteins brings an opportunity to restore the immune balance that is typically out of balance in autoimmune diseases. This

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approach brings potential differentiation from existing therapies that predominantly act by suppressing the immune system (see figure below)

SIK portfolio

The family of SIKs contains three targets: SIK1, SIK2 and SIK3. In our search for compounds acting on these targets, over 5,000 molecules were synthesized leading to more than 11 different chemical series with multiple selectivity profiles. Our first efforts in the space led to compound GLPG3312, a pan-SIK inhibitor, that was tested in Phase 1 and soon thereafter replaced by a more selective SIK2/3 compound GLPG3970. We initiated a series of early-stage clinical trials with GLPG3970 and reported the first topline results in July 2021. These initial results resulted in proof-of-mechanism data, elucidating the role of SIKs in inflammation. GLPG4399, a selective SIK3 inhibitor, is in Phase 1, whereas tissue selective SIK2/3 inhibitor GLPG4605 and other SIK inhibitors are advancing preclinically (see figure below). Several other compounds with different profiles are being explored in discovery.

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GLPG3970: encouraging Phase 1 data

Following positive results across a range of preclinical models, we evaluated GLPG3970 in a Phase 1 single and multiple ascending dose study which demonstrated that GLPG3970 was well tolerated. In addition, GLPG3970 had a dose-dependent effect on two key cytokines representative for its dual mode of action (see figure below). The pro-inflammatory cytokine, TNFα, decreased with increased compound dosing (left). The anti-inflammatory cytokine, IL-10, increased (right) with increasing compound dosing.

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Pioneering role of SIKi in inflammation

We evaluated GLPG3970, in three randomized, placebo-controlled, double-blind studies: i) a Phase 1b study in patients with moderate to severe psoriasis and ii) two Phase 2a studies in patients with moderate to severely active UC and RA. GLPG3970 or placebo were administered orally once-daily for 6 weeks. The main objectives of the studies were to evaluate the safety and tolerability of GLPG3970 as well as early signs of biological and clinical activity.

Across the three studies, GLPG3970 was generally safe and well tolerated. There were no deaths nor serious adverse events, and the majority of treatment emergent adverse events (TEAEs) were mild or moderate in nature.

CALOSOMA Phase 1b study in psoriasis

This randomized placebo-controlled study enrolled 26 patients with moderate to severe psoriasis.

At week 6, four out of 13 patients on GLPG3970 had a PASI 50 response, defined as at least a 50% improvement of baseline PASI, compared to none on placebo. Specifically, the four responders achieved 50%, 50%, 56%, and 77% improvement in their PASI scores from baseline, reaching statistical significance compared to placebo (p=0.002) at week

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6. Positive signals of clinical activity were also consistently observed for other endpoints, including affected Body Surface Area and physician and patient global assessment, versus placebo at week 6

SEA TURTLE Phase 2a study in UC

This randomized placebo-controlled study enrolled 31 biologic-naïve patients with moderate to severely active UC.

At week 6, positive signals on objective parameters such as endoscopy, histology, and fecal calprotectin were observed in patients treated with GLPG3970. These findings did not translate in a differentiation from placebo on change from baseline in the total Mayo Clinical Score (MCS), the primary endpoint of this 6-week study (GLPG3970 -2.7, placebo -2.6). Seven out of 18 patients on GLPG3970 who underwent endoscopy at week 6 met the criteria for Endoscopic Improvement, defined as a score of 0 or 1 on the endoscopic response score, compared to one out of 9

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patients on placebo. The robustness of these signals will be further examined by assessing the correlation to histological endpoints and tissue biomarker data.

LADYBUG Phase 2a study in RA

This randomized placebo-controlled study enrolled 28 patients with moderate to severely active RA and an inadequate response to methotrexate.

At week 6, patients on GLPG3970 showed no differentiation from placebo on change from baseline in DAS28 (CRP) response (GLPG3970 -1.29, placebo -1.24), nor on most other efficacy endpoints.

Outlook SIK portfolio

From these three clinical studies we learned that the SIK pathway has the potential to play an important role in inflammation and confirms the therapeutic potential of SIK inhibitors in inflammatory diseases. Although we will not progress GLPG3970 into clinical development, the study results are an essential part of the broad evidence package that we are assembling on our SIK program. This strengthens our understanding of the best approach going forward. Today, we have several molecules targeting SIK2 and SIK3 with higher potency, as well as more selective molecules acting on SIK2 and SIK3 combined, that we aim to advance. Generating data with relative inhibition of SIK2 versus SIK3 will deepen our knowledge of the safety profile and inform us which isoforms best match with specific inflammatory conditions. We are currently finalizing a Phase 1 study with our SIK3 inhibitor GLPG4399 in healthy volunteers.

Our fibrosis portfolio

Fibrotic disorders represent an area of significant unmet need and we currently focus our R&D efforts on Idiopathic Pulmonary Fibrosis (IPF) and adjacent indications involving lung fibrosis.

About IPF

IPF is a major cause of morbidity and mortality globally. It is a chronic, relentlessly progressive fibrotic disorder of the lungs that typically affects adults over the age of 40. In 2018, 232,000 patients were diagnosed with IPF in the U.S., EU4 & UK and Japan,¹ and this population is expected to grow, due to improved diagnosis, the aging population and worsening air pollution. The clinical prognosis of patients with IPF is poor, with median survival at diagnosis only

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two to four years. There are currently no treatment options available that can reverse or stop the progression of disease and improve the quality of life of patients. Lung transplantation may be an option for some patients with progressive disease and minimal comorbidities.

Esbriet (pirfenidone, marketed by Roche/Genentech) and Ofev (nintedanib, marketed by Boehringer Ingelheim) are approved in the U.S. and Europe for the treatment of mild to moderate IPF, and have been shown to slow the rate of functional decline in IPF. These medicines are gaining ground as the standard of care worldwide with combined sales of $3.5 billion in 2020.²

While these approvals represent a major breakthrough for IPF patients, these novel therapies do not stop the decline in lung function and patients continue to experience disease worsening. Additionally, the adverse effects associated with these therapies are considerable (e.g., diarrhea and liver function test abnormalities with Ofev; nausea and rash with Esbriet). There remains thus a high unmet medical need for patients with IPF.

¹ Source: Decision Resources Group, Global Data, Galapagos Custom Research

² Sales figures from Roche (pirfenidone; Esbriet®) and Boehringer Ingelheim (nintedanib; Ofev®)

GLPG4716

GLPG4716 is a novel, small molecule CHIT1/AMCase dual-inhibitor targeting a key pathway implicated in inflammation and tissue remodeling. Increased chitinase activity has been observed in several inflammatory, fibrotic diseases. We in-licensed GLPG4716 from OncoArendi in November 2020 which we are planning to start a Phase 2 study in lung fibrosis.

Other pipeline

Our CFTR program with GLPG2737 in ADPKD

Autosomal dominant polycystic kidney disease (ADPKD) affects approximately 12.5 million people worldwide and is the fourth leading cause of kidney failure today.¹ Typically with this disease, both kidneys enlarge with fluid-filled cysts, leading to kidney failure for approximately half of patients by the age of 60, and requiring dialysis and possibly kidney transplantation.² Patients may also suffer from hypertension, abdominal pain, kidney infections, cyst ruptures, bleeding, and other symptoms impacting quality of life. Other organs may be affected as well. Treatment is aimed at relieving symptoms and controlling the accompanying hypertension. Currently, only one therapy (tolvaptan³) is available to slow down the progression of cyst development and renal insufficiency; however, not all patients tolerate this therapy.⁴

GLPG2737 is a Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) inhibitor which was observed to be well tolerated by patients in previous clinical trials. It is hypothesized that inhibition of the CFTR channel might reduce cyst growth and kidney enlargement for patients with ADPKD.

We are currently investigating GLPG2737 in the MANGROVE Phase 2 randomized, double-blind, placebo-controlled trial evaluating a once-daily oral dose of GLPG2737. GLPG2737 or placebo is administered for 52 weeks, followed by an open-label extension period of 52 weeks, in 66 ADPKD patients with rapidly progressing disease. The primary objectives of the trial are to assess the effect on growth of total kidney volume over 52 weeks compared to placebo as well as overall safety and tolerability. The secondary objectives include renal function, pharmacokinetics, and pharmacodynamics.

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In November 2021 we announced completion of patient recruitment in the MANGROVE study, with topline results anticipated in the first half of 2023.

¹ Chebib F.T., Torres V.E. Autosomal Dominant Polycystic Kidney Disease: Core Curriculum 2016. Am J Kidney Dis. May 2016, 67 (5) 792-810

² Parfrey P.S., Bear J.C., Morgan J., Cramer B.C., McManamon P.J., Gault M.H., et al. The diagnosis and prognosis of autosomal dominant polycystic kidney disease. N Engl J Med. 1990;323(16):1085–90

³ Jynargue®, Otsuka

⁴Chebib F.T., Perrone R.D., Chapman A.B., Dahl N.K., Harris P.C., Mrug M., et al. A Practical Guide for Treatment of Rapidly Progressive ADPKD with Tolvaptan. JASN. October 2018, 29 (10) 2458-2470

Our JAK1 program with GLPG0555 in OA

GLPG0555 is a proprietary JAK1 inhibitor currently being evaluated in a randomized, double-blind, placebo-controlled Phase 1b study with readout in 2022. The primary objectives of the study include safety and tolerability of single intra-articular doses of GLPG0555 in healthy volunteers. Secondary objectives include the pharmacokinetics and pharmacodynamics of GLPG0555.

Our JAK1/TYK2 program with GLPG3121

We discovered GLPG3121 as a selective JAK1/TYK2 inhibitor with potential in inflammatory diseases. GLPG3121 is currently being evaluated in a randomized, double-blind, placebo-controlled Phase 1 study to assess the safety, tolerability, and pharmacokinetics in healthy volunteers with a decision to continue further development of the compound expected in 2022.

Our R&D portfolio

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We continue to leverage our science and target discovery engine to further broaden our portfolio of candidate medicines. In our pipeline currently 10 programs are in lead optimization, 5 preclinical programs are developed towards testing in humans and 7 are in clinical stage programs.

Our strategy

Our mission is to develop and commercialize first-in-class medicines based on novel targets to improve patients’ lives.

Using human primary cells, we discover which proteins ("targets") play a key role in disease pathways. We then identify and develop small molecules that are designed to inhibit these targets, and thereby positively influence the course of the disease. This approach is designed to address the root cause of the disease rather than just treating symptoms, and has produced a differentiated pipeline of molecules.

In 2021, we became the official Marketing Authorization Holder (MAH) for Jyseleca in the EEA and Great Britain, realizing our ambition to become a fully integrated, independent European biopharma. We are committed to pioneering for patients, with the aim to enrich our product pipeline to address unmet medical needs, both through internal R&D efforts and externally sourced opportunities.

The key elements of our strategy include:

● Maximize and capture the value of our target discovery platform and our differentiated pipeline based on novel modes of action
We continue to scale-up our target and drug discovery productivity, and as a result of the strategic revision exercise announced in 2021, we set goals to focus and adjust the overall risk profile of our clinical pipeline. We also continue to explore additional modalities of drug therapies, such as PROTACs¹ and oligonucleotides, and are actively collaborating with external research partners to accelerate the innovation process.

● Grow our Jyseleca franchise in the European Union and Great Britain
We successfully completed the process of becoming MAH of Jyseleca following the amended agreement with Gilead announced in December 2020 and continue the roll-out of Jyseleca in RA and UC throughout the European Union and Great Britain. Patient enrollment for DIVERSITY Phase 3 in CD was completed in October 2021, and we anticipate topline results in the first half of 2023. Gilead remains responsible for sales

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outside of Europe and obtained approval for filgotinib in RA in Japan in 2020 where it is distributed by co-promotion partner Eisai. Gilead also submitted the application for approval of filgotinib in UC in Japan and anticipates a decision for approval in the first half of 2022.

● Deploy stringent cost discipline and operational excellence to maintain a strong balance sheet and execute to internal and externally sourced opportunities
Following a strategic review of operations in March 2021, we initiated a cost savings program of €150 million on a full year basis, where more than 50% of these targeted savings were realized in 2021. Meanwhile we diligently evaluate business development opportunities to strengthen our R&D engine and product pipeline.

● Build long-term value and accelerate our pipeline with our collaboration partner Gilead
In July 2019 we and Gilead entered into a strategic R&D collaboration, giving Gilead access to our innovative portfolio of compounds and our drug discovery platform, in return for a $3.95 billion upfront payment and a $1.5 billion equity investment (including the exercise of warrant A). Gilead is subject to a 10-year standstill, securing our long-term independence, with a lock-up of the full 25.49% of outstanding shares currently held by Gilead until 22 August 2024.

We strongly believe that the long-term collaboration with Gilead is mutually beneficial: we gain access to Gilead’s extensive experience in drug development and commercialization, and Gilead has access to our platform and pipeline, with option rights to our current and future programs outside Europe. If Gilead opts in, the program is co-developed, and Galapagos and Gilead share all costs.

Following the amendment in 2020 of the arrangement for the commercialization and development of filgotinib, we assumed sole responsibility for commercialization of Jyseleca in Europe and for the clinical development for the majority of the ongoing trials with filgotinib. For a more detailed description of the collaboration, see “—Collaborations.”

¹ Proteolysis Targeting Chimeras

Versatile target discovery platform

Our target discovery platform provides a significant and substantial competitive advantage as it:

● closely mimics the in vivo situation through the use of primary human cells with a relevant trigger and readout for a specific disease phenotype;

● identifies possible points to intervene in a disease pathway by suppressing the expression of an individual protein in these pathways; and

● enables us to rapidly analyze all of the druggable and non-druggable genes and select pharmaceutically tractable protein targets directly by their ability to regulate key disease biology.

A proof of success of this unique approach is demonstrated with filgotinib which acts on preferential JAK1, a novel target which role in a specific disease was discovered by us using our discovery platform.

The human genome consists of tens of thousands of genes which code for the proteins that make up the human body. Nearly all chronic diseases and disorders are caused by a disruption in the normal function of certain proteins. The main goal of the biopharma industry is to discover and develop molecules that alter the activity or expression of these proteins so that normal function returns and the cause of the disease is minimized or eliminated. One of the main obstacles in discovering new drugs is to understand exactly which of the body’s tens of thousands of proteins play a key role in a particular disease. Once these proteins are discovered, they become targets for drug design. Finding these targets is one of the critical steps in the drug discovery process. Our approach to target discovery is unique as our discovery platform focuses on target identification using primary human cells, and incorporates patient data and pathway screening early on, which we believe is the best way to study the effect that a protein might have on the disease in the human body.

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To study proteins in human cells, we take advantage of the distinctive properties of viruses in combination with RNA interference. The virus particle has the capability to infect almost every type of human cell. The virus particles we work with have been engineered to act as a shuttle vehicle, allowing the delivery of specific pieces of DNA into human cells. Additionally, these viruses cannot replicate in the human cells they infect and do not interfere with the processes in the cell. We engineered the viruses to carry small pieces of DNA, specific for individual human genes. When the virus enters the cell, this piece of DNA leads to the production of a short sequence of RNA that is processed in the cell to become “short interfering RNA,” or siRNA, which specifically interferes with the mRNA of the protein it was designed for. As a result, the cells block, or “knock-down,” the production of a certain protein and determine its impact on restoring normal function.

Our drug discovery research is based on the targets discovered using this technology. We started by focusing on 6,000 human genes that belong to the small molecules druggable genome. We are in the process of expanding our expertise with novel technologies such as oligonucleotide-based techniques (antisense (AS) or siRNA) and degrader approaches (Proteolysis Targeting Chimeras or PROTACs). These additions enable us to go broader and explore a broader set, coming closer to the total of 20,000 protein-coding genes. Once a target is validated, we will use the most suitable method to develop a potential therapeutic drug.

In small molecule drug discovery, an assay developed to assess the activity of the target is subjected to large collections of chemical small molecules allowing the identification of chemical structures that interact with the target to block or activate its activity. These chemical structures are then modified to obtain a preclinical candidate, and upon successful optimization and preclinical testing in animal models, the product candidate is tested in humans. Other technologies to modulate relevant targets, such as oligonucleotides or PROTACs, are being explored. In both cases the result is the removal of the target from the cells leading to the prevention of its disease-contributing effects. Based on the properties of the target and its cellular location, one or more modalities are selected and developed.

This discovery approach provides starting points for the discovery and development of drugs with new modes of action. Since 2009, we have generated 49 preclinical candidates. Of these, 24 have entered first-in-human clinical development, 18 of which are believed to have novel modes of action, and 15 entered into patient studies.

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In addition to our pipeline of molecules in the clinic, we have multiple discovery programs advancing toward clinical development.

COVID-19 impact

As the COVID-19 pandemic continues, we continue to innovate to accommodate for the new situation and minimize the impact to operations. We closely follow local governmental measures and apply these as appropriate within our organization, guided and supported by our dedicated COVID-19 task force teams. All local and global task force teams meet regularly and make recommendations directly to the COO.

We report the following impacts for 2021:

• Staff

In 2021, we continued to follow the strict measures put in place to help prevent the spread of the COVID-19 virus and protect the physical and mental health of our staff. We rolled out our global and site-specific business continuity plans and continue to take appropriate recommended precautions.

During lock-down periods, we arranged for essential tasks to be carried out within our facilities. Consequently, the majority of our Research staff continues to work from the office/labs, with periodic exceptions for local lockdowns during which no staff is allowed into the facilities. For those employees coming to the office, we maintain stringent cleaning and sanitation protocols, and we strictly respect social distancing policies at all times in order to minimize risk of exposure.

Based on the learnings from the first year of the pandemic, we piloted and gradually implemented a hybrid working model in 2021, in locations where the ongoing COVID-19 situation and corresponding local governmental measures permitted to do so.

Additionally, we learned that most of the international travel could be replaced by virtual meetings, resulting in improved cost efficiency, a better work-life balance, and a reduced carbon footprint. The positive impact of this forced way-of-working has been retained and has become part of our corporate travel guidance.

• Research portfolio

By prioritizing the most advanced projects very early on, increasing the flexibility of our staff in the labs within projects, maintaining our hiring efforts as planned, and increasing our outsourcing, we sustained our research delivery, kept the compound management facility running at all times, and continued our early drug research and the implementation of new modalities for target or drug discovery.

The scorecard of the research department objectives shows a similar productivity compared to previous years, indicating that we were able to minimize the impact, at least on the short term.

• Development portfolio

We have a business continuity plan for our clinical development programs. We closely monitor each program in context of the current global and local situation of the pandemic and the associated specific regulatory, institutional, government guidance and policies related to COVID-19. Within the boundaries of these guidances and policies, and in consultation with our CROs and clinical trial sites, we applied various measures to minimize the impact of the COVID-19 pandemic on our clinical development programs, with the primary aim to ensure the safety of our trial participants and to preserve the data integrity and scientific validity of the trials. These measures were implemented on a case-by-case basis, tailored to the specific study and country needs at any given time, with specific attention paid to vulnerable populations and the use of investigational medicines with immunosuppressive properties. The measures include, amongst others, increased, transparent communication to all stakeholders and the direct supply of investigational medicines to patients. For each clinical trial, we actively monitor and document the impact of COVID-19 to mitigate the study where necessary and to facilitate the interpretation and reporting of results.

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• Filgotinib filing process UC

As of publication of this report, our collaboration partner Gilead had not been informed by the regulatory agency in Japan of approval timeline delays.

• Manufacturing and supply chain

To date, there has been no COVID-19 impact to the commercial supply of filgotinib. All sites involved in the manufacturing of filgotinib are established sites that currently manufacture other marketed products and are in good standing with the FDA and are GMP certified. Galapagos became marketing authorization holder of filgotinib in the EEA and Great Britain end 2021, and is responsible for manufacturing. The same manufacturing sites as Gilead continue to supply filgotinib except for secondary packaging and labelling for which a new vendor has been selected.

• Commercial organization

The form of outreach of our commercial teams to physicians and hospitals was impacted by the COVID-19 pandemic and consequent travel restrictions, and thus became partially virtual. The teams invested in digital channels as part of the overall commercial build strategy, and these channels are being utilized during our ongoing commercial launch. Thus far we note no material impact on the relative competitiveness of our commercial operations due to travel restrictions, nor has there been an impact of COVID-19 on our ability to engage in market access discussions. Nevertheless, healthcare systems are under pressure across Europe, increasing the volatility in reimbursement procedures and potentially reducing the number of new therapy options initiated by healthcare providers.

Intellectual property

The proprietary nature of, and protection for, our product candidates, their methods of use, and our platform technologies are an important part of our strategy to develop and commercialize novel medicines. We have obtained patents relating to certain of our product candidates, and are pursuing additional patent protection for them and for our other product candidates and technologies. We also rely on trade secrets to protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection. Additionally, we have registered and unregistered trademarks, including amongst others our company name.

Our success will depend significantly on our ability to obtain and maintain patent and other proprietary protection for commercially important products, technologies, inventions and know-how related to our business and our ability to defend and enforce our patents, preserve the confidentiality of our trade secrets and operate without infringing the valid and enforceable patents and proprietary rights of third parties. We also rely on know-how, continuing technological innovation and in-licensing opportunities to develop, strengthen and maintain the proprietary position of our development programs.

As of March 1, 2022, patent rights held by Galapagos NV relating to our product candidates include the following:

Filgotinib product candidate: We have seven U.S. patents claiming filgotinib compositions of matter, salts of filgotinib and methods of treatment using filgotinib, and one pending U.S. patent application. We have two patents granted via the European Patent Office (EPO). Counterpart patent applications are also pending in Australia, Canada, and other foreign countries. The seven issued U.S. patents, two European Patents, and any additional patents that may be granted based on our pending U.S. and foreign patent applications, are currently expected to expire in 2030, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions. For example, supplementary protection certificates have been requested in Europe, and granted amongst others in Germany, the Netherlands, Italy, Portugal with an expiry date of 2035. In addition, we have four granted U.S. patents and one pending U.S. application, with counterpart applications pending in other foreign countries, which are directed to certain physical forms, including polymorphic forms and compositions, of our filgotinib product candidate, and patents, if granted, based on these patent applications are estimated to expire in 2035, not including any potential extensions that may be available for the marketed product via supplementary protection certificates or patent term extensions. We also have a U.S. patent, with counterpart applications pending in other foreign countries, related to the use of our filgotinib product candidate in cardiovascular disorders. Any patents, if granted, based

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on these patent applications are estimated to expire in 2036. We additionally have a pending U.S. application, with counterpart pending application in other foreign jurisdictions, which relates to specific methods of treatment using filgotinib. Any patents, if granted, based on this patent application are estimated to expire in 2039. We have a US pending application, with counterpart pending application in other foreign jurisdictions, which relate to solid formulations of a filgotinib salt, and if granted, these patent application would be currently expected to expire in 2038. We have additional patents and pending patent applications directed to the use of compounds related to our filgotinib product candidate and these patents, and patents that may be issued based on these pending patent applications, are currently expected to expire from 2029 to 2033, not including any potential extensions that may be available for the marketed product via supplementary protection certificates or patent term extensions. We have further patents and pending patent applications directed to directed to certain physical forms, including polymorphic forms and compositions of our filgotinib product candidate, and patents, if granted, based on these patent applications are estimated to expire in 2038.

GLPG0555 product candidate: We have one issued U.S. patent relating to GLPG0555, one patent granted via the EPO, with counterpart foreign patents and patent applications that are pending in Australia, Canada, Japan, China and other foreign countries. These patents and patent applications claim GLPG0555 compositions of matter and methods of treatment using GLPG0555. Patents, if any, that issue based on these pending patent applications are estimated to expire in 2029, not including any potential extensions that may be available for the marketed product via supplementary protection certificates or patent term extensions. We have additional patents and pending patent applications directed to the use of compounds related to GLPG0555 and these patents, and patents that may be issued based on these pending patent applications, are currently expected to expire in 2029, not including any potential extensions that may be available for the marketed product via supplementary protection certificates or patent term extensions.

GLPG1690 product candidate: We have six issued U.S. patents relating to GLPG1690, two patents granted via the EPO, one pending U.S. patent application, one pending EP application, and counterpart foreign patents and patent applications that are pending or granted in Australia, Canada, and other foreign countries. These patents and patent applications claim GLPG1690 compositions of matter and methods of treatment using GLPG1690. Patents, if any, that issue based on these pending patent applications are estimated to expire in 2034, not including any potential extensions that may be available for the marketed product via supplementary protection certificates or patent term extensions.

GLPG2737 product candidate: We have rights in three issued U.S. patents, as well as counterpart foreign patent applications that are granted in Australia, Europe, Japan, China, Russia, Taiwan, pending in Canada, and other foreign countries claiming GLPG2737 compositions of matter and methods of treatment using GLPG2737, outside the field of CF. Patents, if any, that issue, based on these pending patent applications are estimated to expire in 2036, not including any potential extensions that may be available for the marketed product via supplementary protection certificates or patent term extensions. We also have a pending application in the U.S., with pending counterpart foreign patent applications in Europe, Japan and other foreign jurisdictions relating to methods of treatment using GLPG2737 in alternative indications. Patents, if any, that issue based on this pending patent application are estimated to expire in 2040.

GLPG3121 product candidate: We have two granted U.S. patents, one patent granted via the European Patent Office (EPO), and foreign granted counterparts in Australia, Japan, China, Russia and other countries. Counterpart foreign patent applications are also pending in India, South Korea and other foreign countries. These patents and patent applications claim GLPG3121 compositions of matter and methods of treatment using GLPG3121. The issued U.S. patent, the European Patent, and any additional patents that may be granted based on our pending U.S. and foreign patent applications, are currently expected to expire in 2035, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions.

GLPG3312 product candidate: We have a pending U.S. patent application, and one patent granted via the European Patent Office (EPO), as well as counterpart foreign patent applications that are pending in Australia, Canada, Japan and other foreign countries claiming GLPG3312 compositions of matter and methods of treatment using GLPG3312. The issued European Patent, and any additional patents that may be granted based on our pending U.S. and foreign patent applications, are currently expected to expire in 2038, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions.

GLPG3667 product candidate: We have a pending U.S. patent application, as well as counterpart foreign patent applications that are pending in Australia, Canada, Europe, Japan and other foreign countries claiming GLPG3667 compositions of matter and methods of treatment using GLPG3667. Patents, if any, that issue based on this pending

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patent application are estimated to expire in 2038, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions. We also have three pending applications before the European Patent Office (EPO) relating to improved methods for treating inflammatory disorders using GLPG3667. Any patents, if granted, based on these patent applications are estimated to expire in 2042 (1 application) and 2043 (2 applications), respectively.

GLPG3970 product candidate: We have a pending U.S. patent application, as well as counterpart foreign patent applications that are pending in Australia, Canada, Europe, Japan and other foreign countries claiming GLPG3970 compositions of matter and methods of treatment using GLPG3970. Patents, if any, that issue based on this pending patent application are estimated to expire in 2039, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions.

GLPG4399 product candidate: We have a pending U.S. patent application, as well as counterpart foreign patent applications that are pending in Australia, Canada, Europe, Japan and other foreign countries claiming GLPG4399 compositions of matter and methods of treatment using GLPG4399. Patents, if any, that issue based on this pending patent application are estimated to expire in 2040, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions.

GLPG4586 product candidate: We have a pending patent application under the PCT, as well as patent applications pending in Taiwan and other foreign countries claiming GLPG4586 compositions of matter and methods of treatment using GLPG4586. Patents, if any, that issue based on this pending patent application are estimated to expire in 2041, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions.

GLPG4605 product candidate: We have a pending U.S. patent application, as well as counterpart foreign patent applications that are pending in Australia, Canada, Europe, Japan and other foreign countries claiming GLPG4605 compositions of matter and methods of treatment using GLPG4605. Patents, if any, that issue based on this pending patent application are estimated to expire in 2039, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions.

GLPG4716 product candidate: We have exclusively licensed three U.S. patents, one patent granted via the European Patent Office (EPO), and foreign granted counterparts in Australia, China, Japan and other countries, as well as counterpart foreign patent applications that are pending in Canada, India and other foreign countries claiming GLPG4716 compositions of matter and methods of treatment using GLPG4716. The issued U.S. patent, the European Patent, and any additional patents that are granted based on the pending patent applications are estimated to expire in 2036, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions. We also have exclusively licensed rights in a pending U.S. patent application, a pending application under the PCT and corresponding pending foreign counterparts in Taiwan and Argentina, relating to methods of manufacture and specific forms of composition of matter of GLPG4716. Any patents, if granted, based on these patent applications are estimated to expire in 2040.

We have one family of issued patents related to our target discovery platform. This family relates to the use of certain shRNA expression vectors for in situ production of gene specific siRNA, leading to the knock down of the corresponding gene product. This family is a granted European patent validated in Austria, Belgium, Switzerland, Germany, France, the United Kingdom, Ireland, Luxembourg and the Netherlands, and is expected to expire in 2022. We do not believe that the expiration of these patents will materially affect our business, because they will not impact our patent coverage for our current clinical programs. We also use a variety of research tools and software products in our research platform that are non-exclusively licensed to us on commercially reasonable terms.

The term of individual patents depends upon the legal term of the patents in the countries in which they are obtained. In most countries in which we file, the patent term is 20 years from the date of filing the application. In the United States, a patent’s term may be lengthened by patent term adjustment, which compensates a patentee for administrative delays by the United States Patent and Trademark Office, or USPTO, in granting a patent, or may be shortened if a patent is terminally disclaimed over an earlier-filed co-owned patent. In addition, in certain instances, a patent term can be extended to recapture a portion of the term effectively lost as a result of the FDA regulatory review period. However, the restoration period cannot be longer than five years and the total patent term including the restoration period must not exceed 14 years following FDA approval. In certain foreign jurisdictions similar extensions

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as compensation for regulatory delays are also available. The actual protection afforded by a patent varies on a claim by claim and country to country basis for each applicable product and depends upon many factors, including the type of patent, the scope of its coverage, the availability of regulatory related extensions, the availability of legal remedies in a particular country, and the validity and enforceability of the patent.

Furthermore, the patent positions of biotechnology and pharmaceutical products and processes that we intend to develop and commercialize are generally uncertain and involve complex legal and factual questions. No consistent policy regarding the breadth of claims allowed in such patents has emerged to date in the United States. The patent situation outside the United States is even more uncertain. Changes in either the patent laws or in interpretations of patent laws in the United States and other countries can diminish our ability to protect our inventions and enforce our intellectual property rights; more generally, changes could affect the value of intellectual property. Accordingly, we cannot predict the breadth of claims that may be allowed or enforced in our patents or in third-party patents.

The biotechnology and pharmaceutical industries are characterized by extensive litigation regarding patents and other intellectual property rights. Our ability to maintain and solidify our proprietary position for our product candidates and technology will depend on our success in obtaining effective claims and enforcing those claims once granted. We do not know whether any of the patent applications that we may file or license from third parties will result in the issuance of any patents. The issued patents that we own or may receive in the future, may be challenged, invalidated or circumvented, and the rights granted under any issued patents may not provide us with proprietary protection or competitive advantages against competitors with similar technology. Furthermore, our competitors may be able to independently develop and commercialize similar drugs or duplicate our technology, business model, or strategy, without infringing our patents. Because of the extensive time required for clinical development and regulatory review of a drug we may develop, it is possible that, before any of our product candidates can be commercialized, any related patent may expire or remain in force for only a short period following commercialization, thereby reducing any advantage of any such patent.

We may rely, in some circumstances, on trade secrets and unpatented know-how to protect our technology. However, trade secrets can be difficult to protect. We seek to protect our proprietary technology and processes, in part, by entering into confidentiality agreements with our consultants, scientific advisors, and contractors and invention assignment agreements with our employees. We also seek to preserve the integrity and confidentiality of our data and trade secrets by maintaining physical security of our premises and physical and electronic security of our information technology systems. While we have confidence in these individuals, organizations and systems, agreements or security measures may be breached and we may not have adequate remedies for any breach. In addition, our trade secrets may otherwise become known or be independently discovered by competitors. To the extent that our consultants, contractors or collaboration partners use intellectual property owned by others in their work for us, disputes may arise as to the rights in related or resulting know-how and inventions.

Our commercial success will also depend in part on not infringing the proprietary rights of third parties. It is uncertain whether the issuance of any third-party patent would require us to alter our development or commercial strategies, or our product candidates or processes, or obtain licenses or cease certain activities. Our breach of any license agreements or failure to obtain a license to proprietary rights that we may require to develop or commercialize our product candidates may have a material adverse impact on us. If third parties have prepared and filed patent applications in the United States that also claim technology to which we have rights, we may have to participate in interference proceedings in the USPTO to determine priority of invention if the patent applications were filed before March 16, 2013, or in derivation proceedings to determine inventorship for patent applications filed after such date.

In addition, substantial scientific and commercial research has been conducted for many years in the areas in which we have focused our development efforts, which has resulted in third parties having a number of issued patents and pending patent applications relating to such areas. Patent applications in the United States and elsewhere are generally published only after 18 months from the priority date. The publication of discoveries in the scientific or patent literature frequently occurs substantially later than the date on which the underlying discoveries were made. Therefore, patent applications relating to drugs similar to our current product candidates and any future drugs or discoveries and technologies we might develop may have already been filed by others without our knowledge. For more information on these and other risks related to intellectual property, see “Item 3.D.—Risk Factors—Risks Related to Our Intellectual Property.”

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Collaborations

We have entered into multiple collaboration agreements with pharmaceutical partners, which have generated €4,853.8 million ($5,497.5 million converted at EUR/USD closing rate on December 31, 2021) in cash through December 31, 2021 to fund discovery and development. We expect to continue to collaborate selectively with pharmaceutical and biotechnology companies to leverage our discovery platform and accelerate product candidate development. Our current alliances include the alliances with Gilead and the restructured alliance with AbbVie. In December 2020, Servier terminated its alliance with us, which became effective in March 2021.

Option, License and Collaboration Agreement with Gilead

In July 2019, we entered into a 10-year global research and development collaboration with Gilead. We closed the transaction on August 23, 2019.

In connection with our entry into the option, license and collaboration agreement, we received in connection with the closing an upfront payment of $3.95 billion and a €960 million ($1.1 billion) equity investment from Gilead. Under the terms of its equity investment, Gilead nominated two individuals to our board of directors (currently, supervisory board), Dr. Linda Higgins and Mr. Daniel O'Day.

Under the terms of the option, license and collaboration agreement, Gilead received (a) an exclusive research and development license for Gilead to conduct certain contributions contemplated by the license and collaboration agreement and (b) an option to acquire exclusive commercial licenses in all countries outside of Europe to all current and future clinical programs of Galapagos (other than filgotinib, which is already subject to an existing collaboration between the parties, and certain other programs already committed to other companies) being developed during the 10-year initial option term of the collaboration (subject to extension in certain circumstances). Under the option, license and collaboration agreement, we will continue to lead and fund all discovery and development of our programs until the end of the relevant Phase 2 clinical trials. After the completion of the relevant Phase 2 clinical study for each program, Gilead will have the option to acquire an exclusive commercial license to that program in all countries outside of Europe. If the option is exercised, Gilead and we will co-develop the compound and share costs equally.

In connection with entering into the option, license and collaboration agreement, we amended certain terms of our existing agreement with Gilead governing filgotinib, and in December 2020 and September 2021, we agreed with Gilead to further amend such agreement, as further described in ”Item 4 – Collaborations -- Exclusive collaboration agreement with Gilead for filgotinib.”

In addition, under the option, license and collaboration agreement, Gilead was deemed to have exercised its option, and an exclusive commercial license was granted in all countries outside of Europe, to ziritaxestat, our Phase 3 candidate for idiopathic pulmonary fibrosis. US approval of ziritaxestat would have entitled us to an additional $325 million regulatory milestone fee. However, we and Gilead announced in February 2021 that all ongoing development activities with ziritaxestat would be discontinued.

For GLPG1972, a drug candidate resulting from our osteoarthritis collaboration with Servier that was subject to separate option and milestone payments under the option, license and collaboration agreement, Gilead declined to exercise its option under the agreement in November 2020.

For all other programs included in the option, license and collaboration agreement, Gilead will make a $150 million opt-in payment per program with no subsequent milestones if Gilead decides to exercise its option. If Gilead declines to exercise its option with respect to a program, such program shall no longer be subject to the option, license and collaboration agreement and we may progress the program independently.

In addition, we will receive tiered royalties ranging from 20-24% on net sales of all products from all programs licensed by Gilead in all countries outside of Europe as part of the option, license and agreement subject to customary royalty terms and adjustments.

The collaboration is managed by a set of joint committees comprised of equal numbers of representatives from each of us and Gilead. The joint steering committee monitors and provides strategic oversight of the activities under the collaboration and facilitates communications between the parties. The joint development committee oversees and

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coordinates the development of the licensed products. The joint commercialization committee will oversee commercialization of licensed products. The joint communication review committee will oversee publications and other public communications related to licensed products.

Upon Gilead’s exercise of its option with respect to any of our programs, Gilead will assume responsibility for seeking regulatory approval for the optioned product and for all regulatory matters in its territory. Each party will be solely responsible for all commercialization activities and costs for the optioned product in its territory.

Upon termination of the option, license and collaboration agreement with respect to any program licensed by Gilead, all rights and licenses granted by us will terminate, and we will obtain an exclusive, perpetual and irrevocable license from Gilead under certain intellectual property rights to exploit the licensed product that is the subject of development or commercialization at the time of termination in the field in the applicable terminated region (provided that if such termination is the result of our material breach, such license will be royalty-bearing). Either we or Gilead may terminate the option, license and collaboration agreement for the other party’s uncured material breach. Either we or Gilead may terminate the option, license and collaboration agreement in the event of specified insolvency events involving the other party. Gilead may also terminate the option, license and collaboration agreement in its entirety or on a program-by-program and country-by-country basis with advance notice for convenience.

The option, license and collaboration agreement also contains customary provisions including representations and warranties of the parties, terms as to governance of the collaboration, commercialization and regulatory responsibilities of the parties, and manufacturing and supply.

Either party may, without the consent of the other party, assign the option, license and collaboration agreement to an affiliate or successor. If we undergo a change in control, all intellectual property of our acquirer or that becomes owned or controlled by our acquirer after such change of control shall be excluded from the scope of rights granted in the option, license and collaboration agreement.

Exclusive collaboration agreement with Gilead for filgotinib

In December 2015, we entered into a global collaboration agreement with Gilead to develop and commercialize filgotinib for the treatment of inflammatory indications. In connection with entering into the option, license and collaboration agreement with Gilead, in August 2019 we amended and restated this agreement to increase our involvement in filgotinib’s global strategy and participate more broadly in the commercialization of filgotinib in Europe. In December 2020, we agreed to amend this agreement again, as a result of which we have assumed all development, manufacturing, commercialization and certain other rights for filgotinib in Europe through a transition largely completed at the end of 2021. We intend to fully complete the transition by the end of 2022. Gilead retains commercial rights and remains marketing authorization holder for filgotinib outside of Europe, including in Japan.

In connection with our entry into the collaboration agreement, we received in January 2016 an upfront payment of $725 million consisting of a onetime, non-refundable, non-creditable license fee in the amount of $300 million and a $425 million equity investment. In November 2016, Gilead initiated a Phase 3 trial in CD, for which we received a $50.0 million payment. In December 2016, Gilead initiated a Phase 2 trial in UC for which we received a $10.0 million payment. In April 2017, Galapagos initiated a Phase 2 trial in psoriatic arthritis as a new indication, for which we received a $10.0 million payment. In May 2018, Gilead initiated a phase 3 trial in UC for which we received $15.0 million. In December 2019, Gilead initiated a Phase 3 trial in psoriatic arthritis as a new indication, for which we received $10.0 million (€9.1 million). Also in December 2019, Gilead filed an NDA for filgotinib in the U.S. for which we received a $20 million payment in January 2020. In September 2020, Gilead obtained marketing authorization for filgotinib in Europe and Japan for which we received an aggregate payment of $105.0 million (€90.2 million) payment in October 2020. In connection with the agreement that we entered into with Gilead pursuant to the binding term sheet entered into in December 2020 to amend the existing arrangement for the commercialization and development of filgotinib, Gilead has agreed to irrevocably pay Galapagos €160 million, subject to certain adjustments for higher than budgeted development costs. Gilead paid €35 million in January 2021 an additional €75 million in April 2021 and will pay €50 million in 2022. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. However, we will remain eligible to receive tiered royalty percentages ranging from 20% to 30% on Gilead's global net sales of filgotinib outside of Europe and future development and regulatory milestone-based payments of up to $295 million and sales-based milestone payments of up to $600 million. All payments by Gilead to us are made in U.S. dollars. In September 2021, Gilead and Galapagos agreed to further amend the collaboration

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agreement. Following such amendment, Galapagos will assume sponsorship of and operational and financial responsibility for the ongoing DIVERSITY clinical study, evaluating filgotinib in CD, and its long-term extension study. Gilead and Galapagos intend to complete the transfer no later than June 30, 2022. Under the terms of the agreement and upon completion of the transfer, Gilead will make a one-time payment of $15 million to Galapagos in consideration for Galapagos assuming responsibility for the DIVERSITY clinical study. From April 1, 2022, Galapagos will also be solely responsible for all development costs for the DIVERSITY clinical study. In addition, if the EMA grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY trial, then royalties payable by Galapagos to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6 to 10.5% of net sales in Europe. These royalties are payable as of 2024. Gilead remains responsible for commercial activities outside of Europe.

Under the terms of the collaboration, Gilead is primarily responsible for seeking regulatory approval of filgotinib in countries outside of Europe. Pursuant to the amended arrangements agreed in December 2020, we are responsible for commercializing filgotinib in Europe.

Under the amended and restated filgotinib agreement, we agreed on a 50% / 50% cost split for development costs of filgotinib, in lieu of the 20% (us) /80% (Gilead) cost split under the original filgotinib agreement. Beginning on January 1, 2021, we bore the development costs for certain studies, in lieu of the equal cost split contemplated by the 2019 agreement. These studies include the DARWIN3, FINCH4, FILOSOPHY, and Phase 4 studies and registries in RA, MANTA and MANTA-RAy, the PENGUIN1 and 2 and EQUATOR2 studies in PsA, the SEALION1 and 2 studies in AS, the HUMBOLDT study in uveitis in addition to other clinical and non-clinical expenses supporting these studies and support for any investigator sponsored trials in non-IBD conditions and non-clinical costs on all current trials. The existing 50/50 global development cost sharing arrangement will continue for the following studies: SELECTION and its long-term extension study (LTE) in UC, DIVERSITY and its LTE, DIVERGENCE 1 and 2 and their LTEs and support for Phase 4 studies and registries in Crohn’s disease, pediatric studies and their LTEs in RA, UC and Crohn’s disease, and support for investigator sponsored trials in IBD. Under the 2021 amendment, the 50/50 development cost sharing arrangement will cease for DIVERSITY and its LTE starting from April 1, 2022. As from that date, Galapagos will be solely responsible for all development costs. In consideration for Galapagos assuming responsibility for the DIVERSITY study, Gilead shall make a one-time payment to Galapagos of $15 million in 2022. In addition, if the EMA grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY trial, then royalties payable by Galapagos to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6 to 10.5% of net sales in Europe. These royalties are payable as of 2024. Gilead remains responsible for commercial activities outside of Europe.

The original filgotinib agreement included a co-promotion / co-commercialization option for filgotinib, which we exercised with respect to eight European countries in December 2017. We agreed in December 2020 with Gilead to transfer the sole right to commercialize filgotinib in Europe to us after a transition period, pursuant to which most activities were transferred to us by December 31, 2021 and that we intend to complete by December 31, 2022. Until December 31, 2021, we continued to share equally with Gilead in the net profit and net losses in each of the Netherlands, Belgium, Luxembourg, France, Germany, Italy, Spain and UK. During this period, this profit and loss sharing replaces our right to receive royalties with respect to filgotinib sales by Gilead in these countries. All commercial economics on filgotinib in Europe transferred to us as of January 1, 2022, subject to payment of tiered royalties of 8 to 15 percent of net sales in Europe to Gilead, starting in 2024, possibly reduced as set forth above in the event of approval of filgotinib for the treatment of CD.

Gilead will retain sole responsibility for commercializing filgotinib outside of Europe. We will be eligible to receive tiered royalty percentages ranging from 20% to 30% on Gilead’s global net sales of filgotinib outside of Europe. The royalties payable to us under the filgotinib agreement may be reduced under certain circumstances. Our right to receive royalties under the filgotinib agreement continues, on a country-by-country basis, until the later to occur of certain specified events.

Under the amended and restated collaboration agreement, the collaboration was managed by a set of joint committees comprised of equal numbers of representatives from each of us and Gilead. The joint steering committee monitors and provides strategic oversight of the activities under the collaboration and facilitates communications between the parties. The joint development committee oversees and coordinates the development of filgotinib. The joint commercialization committee will oversee commercialization of filgotinib globally, and the shared territory joint commercialization committee will coordinate and integrate the activities of, and facilitate the communication and exchange of information between, us and Gilead with respect to the co-commercialization of filgotinib. Gilead and

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Galapagos will jointly prepare the global commercialization strategy. Under the transition and amendment agreement following the 2020 amendment, the joint commercialization committee and the shared territory joint commercialization committee were disbanded and the transition steering committee and joint transition team were created to oversee the transition activities. Under the second amended and restated collaboration agreement following the 2020 amendment, the transition steering committee and joint transition team were disbanded and the Jyseleca Scientific Publication Team and the Communication Points of Contact were created to facilitate the parties publication and communication activities. The filgotinib agreement, as amended, will expire on a country-by-country basis at the end of the royalty term in such country. Upon expiration of the royalty term, the licenses will become fully-paid, perpetual and irrevocable. Either we or Gilead may terminate the filgotinib agreement for the other party’s uncured material breach. Either we or Gilead may terminate the filgotinib agreement in the event of specified insolvency events involving the other party. Gilead may also terminate the filgotinib agreement in its entirety for convenience following a certain period, upon prior written notice.

If the collaboration agreement terminates in its entirety for any reason, all rights and licenses granted by either party will terminate, and we will obtain an exclusive, perpetual, irrevocable, royalty-bearing license from Gilead under certain intellectual property rights to exploit filgotinib. If the filgotinib agreement is terminated in a specific territory, all rights and licenses granted by us will be deemed to be amended not to include such territory, and we will have a corresponding license with respect to such terminated country. The filgotinib agreement also contains other termination rights specified therein.

Either party may, without the consent of the other party, assign the filgotinib agreement to an affiliate or successor. Any other assignment requires written consent of the other party. However, with respect to an assignment to an affiliate, the assigning party will remain bound by the terms of the filgotinib agreement.

Second amended and restated collaboration agreement with AbbVie

On October 24, 2018, we and AbbVie amended and restated the CF collaboration agreement for a second time to restructure the entire collaboration.

Pursuant to the second amended and restated agreement, AbbVie took over all programs in CF. AbbVie obtained exclusive worldwide rights to the current CF investigational drug candidate portfolio developed by the two companies in the course of the collaboration. The portfolio includes all potentiator and corrector candidates, with the exception of GLPG1837 and a specific arrangement for GLPG2737. We retain rights to these two compounds for use outside the field of CF. AbbVie will be responsible for all future activities and will bear all costs associated with this portfolio in CF going forward.

We received an upfront payment of $45 million and a milestone of $25 million in 2019 from AbbVie. We will be eligible to receive up to $175 million in additional milestone payments from AbbVie pending completion of certain development, regulatory, and commercial achievements in CF by AbbVie. In the event AbbVie receives regulatory approval and realizes commercial sales in CF, we are further eligible to receive royalties ranging from single digit to low teens. AbbVie further agrees to pay us tiered single digit royalties of global commercial sales, if approved, from these candidates achieved in indications outside of CF.

We retain exclusive global commercial rights to develop GLPG2737, a candidate C2 corrector, in all indications outside of CF. AbbVie is eligible to receive up to $20 million upon achievement of a late stage development milestone, and tiered single digit royalties on future global commercial sales, if approved, in indications outside CF.

We further retain exclusive global commercial rights to develop GLPG1837, a candidate potentiator, in all indications outside of CF. AbbVie is eligible for a low single digit royalty on future global commercial sales, if approved, in indications outside CF.

As of the date of this annual report, we have achieved $112.5 million as milestones under the agreement, in addition to the $90 million aggregate upfront payments received upon entry into the original agreement and the second amended and restated agreement.

Seasonality

Our business is currently not materially affected by seasonality.

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Manufacturing and supply

We currently do not own or operate manufacturing facilities for the production of product candidates for preclinical, clinical, or commercial use. We currently outsource to a limited number of external service providers the production of all drug substances and drug products, and we expect to continue to do so to meet the preclinical and clinical requirements of our product candidates and for the production in support of our commercial sales. We have framework agreements with most of our external service providers, under which they generally provide services to us on a project-by-project basis.

Currently, our drug raw materials which support our clinical trials are manufactured by multiple suppliers. We have agreements for the supply of such drug materials with manufacturers or suppliers that we believe have sufficient capacity to meet our demands. In addition, we believe that adequate alternative sources for such supplies exist. However, there is a risk that, if supplies are interrupted, it would materially harm our business. We typically order raw materials and services on a purchase-order basis, and do not enter into long-term dedicated capacity or minimum supply arrangements. To date, the prices of our principal raw materials have not been volatile.

Manufacturing is subject to extensive regulations that impose various procedural and documentation requirements, which govern record keeping, manufacturing processes and controls, personnel, quality control and quality assurance, among others. The contract manufacturing organizations we use to manufacture our product candidates operate under current good manufacturing practice, or cGMP, conditions. cGMPs are regulatory requirements for the production of pharmaceuticals that will be used in humans. For most of our manufacturing processes a back-up GMP manufacturer is in place or can easily be identified.

Competition

Our industry is highly competitive and subject to rapid and significant change. While we believe that our development and commercialization experience, scientific knowledge, and industry relationships provide us with competitive advantages, we face competition from pharmaceutical, medical device, and biotechnology companies, including specialty pharmaceutical companies, generic drug companies, academic institutions, government agencies, and research institutions.

In the field of RA, therapeutic approaches have traditionally relied on DMARDS such as MTX and sulphasalazine as first-line therapy. These oral drugs work primarily to suppress the immune system and, while effective in this regard, the suppression of the immune system leads to an increased risk of infections and other side effects. Accordingly, in addition to DMARDS, monoclonal antibodies targeting TNF, like AbbVie’s Humira, or IL-6 like Roche’s Actemra, have been developed. These biologics, which must be delivered via injection, are currently the standard of care as first-line and second-line therapies for RA patients who have an inadequate response to DMARDS. In November 2012, Xeljanz, marketed by Pfizer, was approved by the FDA as an oral treatment of adult patients with RA who have had an inadequate response to, or who are intolerant to, MTX. Xeljanz was approved by the EMA in 2017. Olumiant, a once-daily JAK1/2 inhibitor, marketed by Lilly, was approved by the EMA for RA in 2017 and by the FDA in 2018. A JAK inhibitor called Rinvoq which received approval for use in RA from FDA and EMA in 2019 is marketed by AbbVie. Filgotinib (Jyseleca), developed by us in collaboration with Gilead, is a preferential JAK1 inhibitor approved in 2020 for use in RA in Europe, and Japan. We expect that Jyseleca will compete with all of these therapies now that it is marketed. If generic or biosimilar versions of these therapies are approved, we would also expect to compete against these versions of the therapies.

In the field of IBD, first line therapies are oral (or local) treatments with several low-cost generic compounds such as mesalamine, more effective in UC, and azathioprine, more effective in CD. Steroids such as budesonide are used in both UC and CD. For more advanced therapy, monoclonal antibodies with various targets such as TNF and more recently, integrins such as vedolizumab (Entyvio) are approved. We are also aware of other biologics currently approved or in clinical development for these indications, such as ustekinumab (Stelara), developed by Johnson & Johnson, which is approved for UC and UV, and risankizumab (Skyrizi), developed by AbbVie under regulatory review for CD and under development for UC. Celgene/BMS has a new oral therapy: ozanimod (Zeposia), approved in UC and in Phase 3 in CD. Pfizer’s Xeljanz was approved by the FDA for UC in 2018. Filgotinib (Jyseleca) was approved in 2021 by the EC for UC and currently in Phase 3 for CD. Abbvie’s Rinvoq is under regulatory review for UC and is currently in a Phase 3 trial in CD. The number of treatments for UC and CD, presents a substantial level of competition for any new treatment entering the IBD market. We expect that Jyseleca will compete with all of these therapies now marketed for UC, and

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when marketed for CD. If generic or biosimilar versions of these therapies are approved, we would also expect to compete against these versions of the therapies.

In the field of Pso, patients with mild to moderate disease are often treated with corticosteroids or other conventional topical therapies such as Vitamin D, retinoids or light therapy. Patients with moderate to severe psoriasis or who do not respond well to conventional therapies are advised to switch to oral drugs or injectables to reduce skin inflammation. These therapies include methotrexate, or more effective biologics such as adalimumab (Humira), infliximab (Remicade), etanercept (Enbrel), ustekinumab (Stelara), certolizumab pegol (Cimzia), secukinumab (Cosentyx), brodalumab (Siliq), infliximab (Avsola/Inflectra/Renflexis), ixekizumab (Talz), guselkumab (Tremfya), risankizumab (Skyrizi). When severe psoriasis is not adequately treated, patients can develop PsA. In the field of PsA, similar treatments as for Pso are used; infliximab (Avsola/Inflectra/Renflexis), certolizumab pegol (Cimzia), abatacept (Orencia), golimumab (Simponi), ustekinumab (Stelara), ixekizumab (Taltz) and guselkumab (Tremfya). Oral medication used for PsA is tofacitinib (Xeljanz) and upadacitinib (Rinvoq) is approved by the EMA and FDA.

In the field of SLE, anti-inflammatory drugs like NSAIDS, corticosteroids, and methotrexate are commonly used to treat lupus symptoms such as fever, arthritis and pleurisy. Belimumab (Benlysta) and recently anifrolumab (Saphnelo) are the only approved drug to treat SLE, and help control disease activity. Voclosporin (Lupkynis) from Aurinia was approval for treatment of lupus nephritis by the FDA and EC. BIIB059 from Biogen, dapirolizumab pegol from UCB/Biogen and obinutuzumab (Gazyva) from Roche are in Phase 3. In terms of oral medication, tofacitinib (Xeljanz) and upadacitinib (Rinvoq) are in Phase 2.In the field of Sjögren’s syndrome, cevimeline (Evoxac) is the only approved drug available.

In the field of AS, therapies approved by FDA and the EC are etanercept (Enbrel), infliximab (Remicade), adalimumab (Humira), golimumab (Simponi), certolizumab (Cimzia), secukinumab (Cosentyx), ixekizumab (Taltz), tofacitinib (Xeljanz) and upadacitinib (Rinvoq). Despite the availability of these treatments, a significant number of AS patients do not achieve low disease activity today.

In the field of OA, there are currently no disease-modifying drugs approved. Current treatment involves weight loss, physical therapy, prednisolone, non-steroidal anti-inflammatory drugs, and pain management. Medivir announced in September 2017 that a Phase 2 trial in patients with knee OA with MIV-711, a cathepsin K inhibitor, demonstrated structural benefit. Sprifermin, a novel recombinant human fibroblast growth factor 18 was developed by Merck KGaA and outlicensed to TrialSpark/High Line Bio. In a Phase 2 trial published in 2018, sprifermin showed to be effective at increasing cartilage thickness in a dose-dependent manner in knee OA patients, with an acceptable safety profile. Biosplice Therapeutics (formerly Samumed) is conducting a Phase 3 program with lorecivivint, an intra-articular approach aimed at the wnt pathway in OA joints. Novartis in-licensed a Phase 2 ready drug M6495 (also ALX-1141 developed as part of an agreement between Merck and Ablynx, which is now a subsidiary of Sanofi), a nanobody aimed at ADAMTS-5, but its status is unknown at the time of the publication. Novartis is as well conducting a Phase 2 study in knee osteoarthritis with LNA043, a ANGPTL3 agonist.

In the field of IPF, there are two approved disease modifying drugs, pirfenidone (Esbriet), marketed by Roche, and nintedanib (Ofev), marketed by Boehringer Ingelheim. These drugs are not well tolerated by patients and prolong life for IPF patients by a matter of months, leaving an unmet medical need for those developing disease-modifying drugs in this field. Fibrogen is running Phase 3 trials with pamrevlumab (anti-CTGF antibody) in IPF patients. Roche has a late-stage contender, RG6354, in Phase 3 for IPF gained through the acquisition of Promedior. PLN-74809 is a αvβ6 and αvβ1 integrin inhibitor from Pliant Therapeutics in Phase 2 for IPF. BI 1015550 (PDE4 inhibitor) from Boehringer Ingelheim, CC-90001 (JNK1 inhibitor) from BMS, Saracatinib (Src kinase inhibitor) from Astrazeneca, GB0139 (TD139) (Galectin-3 inhibitor) from Galecto Biotech, VP01 (AT2 agonist) from Vicore Pharma, BMS-986278 (LPA1 antagonist) from BMS, Setanaxib (GKT831) (NOX1&4 inhibitor) from Calliditas/Genkyotex are all in Phase 2 for IPF.

In the field of ADPKD, there is currently no cure. Symptoms like high blood pressure, pain and kidney stones are treated with conventional medication. In 2018, a first drug tolvaptan (Jynarque, Samsca) to slow down the growth of kidney cysts was approved for patients with rapidly progressing, chronic kidney disease. Bardoxolone from Reata Pharmaceuticals and lixivaptan from Palladio Biosciences are in Phase 3, tesevatinib from Kadmon Corporation and oxypurinol from Xortx Therapeutics are in Phase 2 development. RGLS4326 from Regulus Therapeutics, ANG-3070 from Angion Biomedical and Ricolinostat from BMS is currently being tested in a Phase 1 trial in ADPKD.

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Many of our competitors have significantly greater financial, technical, and human resources than we have. Mergers and acquisitions in the pharmaceutical, medical device and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Our commercial opportunity could be reduced or eliminated if our competitors develop or market products or other novel therapies that are more effective, safer, or less costly than our current or future product candidates, or obtain regulatory approval for their products more rapidly than we may obtain approval for our product candidates. Our success will be based in part on our ability to identify, develop, and manage a portfolio of product candidates that are safer and more effective than competing products.

Government regulation

Government regulation and product approval

Government authorities in the United States at the federal, state, and local level, and in other countries, extensively regulate, among other things, the research, development, testing, manufacture, quality control, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution, marketing, export, and import of products such as those we are developing.

U.S. regulation

U.S. drug development process

The process of obtaining regulatory approvals and compliance with appropriate federal, state, local, and foreign statutes and regulations require the expenditure of substantial time and financial resources. Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process, or after approval, may subject an applicant to administrative or judicial sanctions. These sanctions could include the FDA’s refusal to approve pending applications, withdrawal of an approval, a clinical hold, untitled or warning letters, voluntary product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, restitution, disgorgement, or civil or criminal penalties. The process required by the FDA before a drug may be marketed in the United States generally involves the following:

● completion of preclinical laboratory tests, animal studies and formulation studies according to Good Laboratory Practices regulations;

● submission to the FDA of an investigational new drug application, or IND, which must become effective before human clinical trials may begin;

● performance of adequate and well-controlled human clinical trials according to good clinical practices, or GCP, to establish the safety and efficacy of the proposed drug for its intended use;

● preparation and submission to the FDA of a new drug application, or NDA;

● satisfactory completion of an FDA inspection of the manufacturing facility or facilities at which the product, or components thereof, are produced to assess compliance with cGMP;

● potential FDA audit of the clinical trial sites that generated the data in support of the NDA; and

● FDA review and approval of the NDA.

The testing and approval process requires substantial time, effort, and financial resources and we cannot be certain that any approvals for our product candidates will be granted on a timely basis, if at all.

Once a pharmaceutical product candidate is identified for development, it enters the preclinical testing stage. Preclinical tests include laboratory evaluations of product chemistry, toxicity, formulation and stability, as well as animal studies. An IND sponsor must submit the results of the preclinical tests together with manufacturing information, analytical data, and any available clinical data or literature, to the FDA as part of the IND. The sponsor must also include a protocol detailing, among other things, the objectives of the initial clinical trial, dosing procedures, subject selection,

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and exclusion criteria, the parameters to be used in monitoring safety and the effectiveness criteria to be evaluated if the initial clinical trial lends itself to an efficacy evaluation. Some preclinical testing may continue even after the IND is submitted. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA raises concerns or questions related to a proposed clinical trial and places the trial on a clinical hold within that 30-day time period. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. Clinical holds also may be imposed by the FDA at any time before or during clinical trials due to safety concerns or non-compliance, and may be imposed on all drug products within a certain class of drugs. The FDA also can impose partial clinical holds, for example, prohibiting the initiation of clinical trials of a certain duration or for a certain dose.

All clinical trials must be conducted under the supervision of one or more qualified investigators in accordance with GCP regulations. These regulations include the requirement that all research subjects provide informed consent in writing before their participation in any clinical trial. Further, an institutional review board, or IRB, must review and approve the plan for any clinical trial before it commences at any institution, and the IRB must conduct continuing review and reapprove the study at least annually. An IRB considers, among other things, whether the risks to individuals participating in the clinical trial are minimized and are reasonable in relation to anticipated benefits. The IRB also approves the information regarding the clinical trial and the consent form that must be provided to each clinical trial subject or his or her legal representative, and must monitor the clinical trial until completed. Each new clinical protocol and any amendments to the protocol must be submitted for FDA review, and to the IRBs for approval.

Human clinical trials are typically conducted in three sequential phases that may overlap or be combined:

● Phase 1. The product is initially introduced into a small number of healthy human subjects or patients and tested for safety, dosage tolerance, absorption, metabolism, distribution and excretion and, if possible, to gain early evidence on effectiveness. In the case of some products for severe or life- threatening diseases, especially when the product is suspected or known to be unavoidably toxic, the initial human testing may be conducted in patients.

● Phase 2. Involves clinical trials in a limited patient population to identify possible adverse effects and safety risks, to preliminarily evaluate the efficacy of the product for specific targeted diseases and to determine dosage tolerance and optimal dosage and schedule.

● Phase 3. Clinical trials are undertaken to further evaluate dosage, clinical efficacy, and safety in an expanded patient population at geographically dispersed clinical trial sites. These clinical trials are intended to establish the overall risk/benefit relationship of the product and provide an adequate basis for physician labeling.

Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA. Within 15 calendar days after the sponsor determines that the information qualifies for reporting, written IND safety reports must be submitted to the FDA and the investigators for serious and unexpected suspected adverse events, findings from other studies or animal or in vitro testing that suggest a significant risk to humans, and any clinically important increase in the rate of a serious suspected adverse reaction over that listed in the protocol or investigator brochure. The sponsor also must notify the FDA of any unexpected fatal or life-threatening suspected adverse reaction within seven calendar days after the sponsor’s initial receipt of the information. Phase 1, Phase 2, and Phase 3 testing may not be completed successfully within any specified period, if at all. The FDA or the sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that the research subjects or patients are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the IRB’s requirements, or if the drug has been associated with unexpected serious harm to patients.

Concurrent with clinical trials, companies usually complete additional animal studies and must also develop additional information about the chemistry and physical characteristics of the product and finalize a process for manufacturing the product in commercial quantities in accordance with cGMP requirements. The manufacturing process must be capable of consistently producing quality batches of the product candidate and, among other things, the manufacturer must develop methods for testing the identity, strength, quality and purity of the final product. Additionally, appropriate packaging must be selected and tested, and stability studies must be conducted to demonstrate that the product candidate does not undergo unacceptable deterioration over its shelf life.

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A drug being studied in clinical trials may be made available to individual patients in certain circumstances. Pursuant to the 21st Century Cures Act, or Cures Act, the manufacturer of an investigational drug for a serious disease or condition is required to make available, such as by posting on its website, its policy on evaluating and responding to requests for individual patient access to such investigational drug. This requirement applies on the earlier of the first initiation of a Phase 2 or Phase 3 trial of the investigational drug, or, as applicable, 15 days after the drug receives a designation as a breakthrough therapy, fast track product, or regenerative advanced therapy.

U.S. review and approval processes

The results of product development, preclinical studies, and clinical trials, along with descriptions of the manufacturing process, analytical tests conducted on the drug, proposed labeling, and other relevant information, are submitted to the FDA as part of an NDA for a new drug, requesting approval to market the product. The submission of an NDA is subject to the payment of a substantial user fee; although a waiver of such fee may be obtained under certain limited circumstances. For example, the agency will waive the application fee for the first human drug application that a small business or its affiliate submits for review. The sponsor of an approved NDA is also subject to an annual prescription drug product program fee.

The FDA reviews all NDAs submitted to ensure that they are sufficiently complete for substantive review before it accepts them for filing. The FDA may request additional information rather than accept an NDA for filing. In this event, the NDA must be re-submitted with the additional information. The re-submitted application also is subject to review before the FDA accepts it for filing. Once the submission is accepted for filing, the FDA begins an indepth substantive review. The FDA reviews an NDA to determine, among other things, whether a product is safe and effective for its intended use and whether its manufacturing is cGMP-compliant to assure the product’s identity, strength, quality, and purity. Before approving an NDA, the FDA typically will inspect the facility or facilities where the product is or will be manufactured. The FDA will not approve an application unless it determines that the manufacturing processes and facilities are in compliance with cGMP requirements and adequate to assure consistent production of the product within required specifications. The FDA may refer the NDA to an advisory committee for review, evaluation, and recommendation as to whether the application should be approved and under what conditions. An advisory committee is a panel of experts, including clinicians and other scientific experts, who provide advice and recommendations when requested by the FDA. The FDA is not bound by the recommendation of an advisory committee, but it considers such recommendations when making decisions.

The approval process is lengthy and difficult and the FDA may refuse to approve an NDA if the applicable regulatory criteria are not satisfied or may require additional clinical data or other data and information. Even if such data and information are submitted, the FDA may ultimately decide that the NDA does not satisfy the criteria for approval. Data obtained from clinical trials are not always conclusive and the FDA may interpret data differently than we interpret the same data. The FDA will issue a complete response letter if the agency decides not to approve the NDA in its present form. The complete response letter usually describes all of the specific deficiencies that the FDA identified in the NDA that must be satisfactorily addressed before it can be approved. The deficiencies identified may be minor, for example, requiring labeling changes, or major, for example, requiring additional clinical trials. Additionally, the complete response letter may include recommended actions that the applicant might take to place the application in a condition for approval. If a complete response letter is issued, the applicant may either resubmit the NDA, addressing all of the deficiencies identified in the letter, or withdraw the application, or request an opportunity for a hearing.

If a product receives regulatory approval, the approval may be significantly limited to specific diseases and dosages, or the indications for use may otherwise be limited, which could restrict the commercial value of the product. Further, the FDA may require that certain contraindications, warnings, or precautions be included in the product labeling. In addition, the FDA may require post-approval studies, including Phase 4 clinical trials, to further assess a drug’s safety and effectiveness after NDA approval and may require testing and surveillance programs to monitor the safety of approved products that have been commercialized. As part of the NDA, the FDA also may require the submission of a risk evaluation and mitigation strategy, or REMS, to ensure that the benefits of the drug outweigh the risks of the drug. The REMS plan could include medication guides, physician communication plans, and elements to assure safe use, such as restricted distribution methods, patient registries, or other risk minimization tools. An assessment of the REMS must be conducted at set intervals. Following product approval, a REMS also may be required by the FDA if new safety information is discovered and the FDA determines that a REMS is necessary to ensure that the benefits of the drug outweigh the risks of the drug.

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Expedited programs

Fast track designation

The FDA has a fast track program that is intended to expedite or facilitate the process for reviewing new drugs that meet certain criteria. Specifically, new drugs are eligible for fast track designation if they are intended to treat a serious or life-threatening disease or condition and demonstrate the potential to address unmet medical needs for the condition. Fast track designation applies to the combination of the product and the specific indication for which it is being studied. The sponsor of a new drug may request the FDA to designate the drug as a fast track product concurrently with, or at any time after, submission of an IND, and the FDA must determine if the product candidate qualifies for fast track designation within 60 days of receipt of the sponsor’s request.

In addition to other benefits, such as the ability to engage in more frequent interactions with the FDA, the FDA may initiate review of sections of a fast track drug’s NDA before the application is complete. This rolling review is available if the applicant provides, and the FDA approves, a schedule for the submission of each portion of the NDA and the applicant pays applicable user fees. However, the FDA’s time period goal for reviewing an application does not begin until the last section of the NDA is submitted. Additionally, the fast track designation may be withdrawn by the FDA if the FDA believes that the designation is no longer supported by data emerging in the clinical trial process.

Accelerated approval

Under FDA’s accelerated approval regulations, the FDA may approve a drug product for a serious or life-threatening illness that provides meaningful therapeutic benefit to patients over existing treatments based upon a surrogate endpoint that is reasonably likely to predict clinical benefit, or on a clinical endpoint that can be measured earlier than irreversible morbidity or mortality, that is reasonably likely to predict an effect on irreversible morbidity or mortality or other clinical benefit, taking into account the severity, rarity, or prevalence of the condition and the availability or lack of alternative treatments. In clinical trials, a surrogate endpoint is a marker, such as a measurement of laboratory or clinical signs of a disease or condition that is thought to predict clinical benefit, but is not itself a measure of clinical benefit. Surrogate endpoints can often be measured more easily or more rapidly than clinical endpoints. A product candidate approved on this basis is subject to rigorous post-marketing compliance requirements, including the completion of post-approval clinical trials sometimes referred to as Phase 4 trials to confirm the effect on the clinical endpoint. Failure to conduct required post-approval studies, or to confirm a clinical benefit during post-marketing studies, will allow the FDA to withdraw the drug product from the market on an expedited basis. All promotional materials for product candidates approved under accelerated regulations are subject to prior review by the FDA.

Breakthrough designation

The FDA expedites the development and review of a breakthrough therapy. A drug product can be designated as a breakthrough therapy if it is intended to treat a serious or life-threatening disease or condition and preliminary clinical evidence indicates that it may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. A sponsor may request that a drug product be designated as a breakthrough therapy concurrently with, or at any time after, the submission of an IND, and the FDA must determine if the product candidate qualifies for breakthrough therapy designation within 60 days of receipt of the sponsor’s request. If so designated, the FDA shall act to expedite the development and review of the product’s marketing application, including by meeting with the sponsor throughout the product’s development, providing timely advice to the sponsor to ensure that the development program to gather preclinical and clinical data is as efficient as practicable, involving senior managers and experienced review staff in a cross-disciplinary review, assigning a cross-disciplinary project lead for the FDA review team to facilitate an efficient review of the development program and to serve as a scientific liaison between the review team and the sponsor, and taking steps to ensure that the design of the clinical trials is as efficient as practicable.

Priority review

Priority review is granted where there is evidence that the proposed product would be a significant improvement in the safety or effectiveness of the treatment, diagnosis, or prevention of a serious condition. If a product that contains a new molecular entity is granted priority review, the FDA aims to review the application six months after it accepts the application for filing. If criteria are not met for priority review, the application is subject to the standard FDA review

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period of ten months after FDA accepts the application for filing. Priority review designation does not change the scientific/medical standard for approval or the quality of evidence necessary to support approval.

Post-approval requirements

Any products which we receive FDA approval for are subject to continuing regulation by the FDA, including, among other things, record-keeping requirements, reporting of adverse experiences with the product, providing the FDA with updated safety and efficacy information, product sampling and distribution requirements, tracking and tracing requirements, complying with certain electronic records and signature requirements, and complying with FDA promotion and advertising requirements. The FDA strictly regulates labeling, advertising, promotion and other types of information on products that are placed on the market. Products may be promoted only for the approved indications and in accordance with the provisions of the approved label. Further, manufacturers must continue to comply with cGMP requirements, which are extensive and require considerable time, resources, and ongoing investment to ensure compliance. In addition, changes to the manufacturing process generally require prior FDA approval before being implemented and other types of changes to the approved product, such as adding new indications and additional labeling claims, are also subject to further FDA review and approval.

Manufacturers and other entities involved in the manufacturing and distribution of approved products are required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMP and other laws. The cGMP requirements apply to all stages of the manufacturing process, including the production, processing, sterilization, packaging, labeling, storage, and shipment of the product. Manufacturers must establish validated systems to ensure that products meet specifications and regulatory standards, and test each product batch or lot prior to its release. We rely, and expect to continue to rely, on third parties for the production of clinical quantities of our product candidates. Future FDA and state inspections may identify compliance issues at the facilities of our contract manufacturers that may disrupt production, or distribution, or may require substantial resources to correct.

The FDA may withdraw a product approval if compliance with regulatory requirements is not maintained or if problems occur after the product reaches the market. Later discovery of previously unknown problems with a product may result in restrictions on the product or even complete withdrawal of the product from the market. Newly discovered or developed safety or effectiveness data may require changes to a drug’s approved labeling, including the addition of new warnings and contraindications, and also may require the implementation of other risk management measures, including a REMS, or the conduct of post-marketing studies to assess a newly discovered safety issue. FDA has authority to require post-market studies, in certain circumstances, on reduced effectiveness of a drug, and FDA may require labeling changes related to new reduced effectiveness information. Further, the failure to maintain compliance with regulatory requirements may result in administrative or judicial actions, such as fines, untitled or warning letters, holds on clinical trials, voluntary product recalls, product seizures, product detention or refusal to permit the import or export of products, refusal to approve pending applications or supplements, restrictions on marketing or manufacturing, injunctions, or civil or criminal penalties.

From time to time, legislation is drafted, introduced, and passed in Congress that could significantly change the statutory provisions governing the approval, manufacturing, and marketing of products regulated by the FDA. In addition to new legislation, FDA regulations, guidances, and policies are often revised or reinterpreted by the agency in ways that may significantly affect our business and our product candidates. It is impossible to predict whether further legislative or FDA regulation or policy changes will be enacted or implemented and what the impact of such changes, if any, may be.

Patent term restoration and marketing exclusivity

Depending upon the timing, duration and specifics of FDA approval of the use of our product candidates, some of our U.S. patents may be eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984, commonly referred to as the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product’s approval date. The patent term restoration period is generally one-half the time between the effective date of an IND and the submission date of an NDA plus the time between the submission date of an NDA and the approval of that application, less any time the applicant did not act with due diligence. Only one

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patent applicable to an approved drug is eligible for the extension, and the application for the extension must be submitted prior to the expiration of the patent. The U.S. Patent and Trademark Office, in consultation with the FDA, reviews and approves the application for any patent terms extension or restoration. In the future, we intend to apply for restorations of patent term for some of our currently owned or licensed patents to add patent life beyond their current expiration dates, depending on the expected length of the clinical trials and other factors involved in the filing of the relevant NDA; however, there can be no assurance that any such extension will be granted to us.

Market exclusivity provisions under the FDCA can also delay the submission or the approval of certain applications. The FDCA provides a five-year period of non-patent marketing exclusivity within the United States to the first applicant to gain approval of an NDA for a new chemical entity. A drug is a new chemical entity if the FDA has not previously approved any other new drug containing the same active moiety, which is the molecule or ion responsible for the action of the drug substance. During the exclusivity period, the FDA may not accept for review an abbreviated new drug application, or ANDA, or a 505(b)(2) NDA submitted by another company for another version of such drug where the applicant does not own or have a legal right of reference to all the data required for approval. However, an application may be submitted after four years if it contains a certification of patent invalidity or non-infringement. The FDCA also provides three years of marketing exclusivity for an NDA, 505(b)(2) NDA, or supplement to an existing NDA if new clinical investigations, other than bioavailability studies, that were conducted or sponsored by the applicant are deemed by the FDA to be essential to the approval of the application, for example, for new indications, dosages or strengths of an existing drug. This three-year exclusivity covers only the conditions of use associated with the new clinical investigations and does not prohibit the FDA from approving ANDAs for drugs containing the original active agent. Five-year and three-year exclusivity will not delay the submission or approval of a full NDA. However, an applicant submitting a full NDA would be required to conduct or obtain a right of reference to all of the preclinical studies and adequate and well-controlled clinical trials necessary to demonstrate safety and effectiveness. Pediatric exclusivity is another type of exclusivity in the United States.

Pediatric exclusivity, if granted, provides an additional six months to an existing exclusivity or statutory delay in approval resulting from a patent certification. This six-month exclusivity, which runs from the end of other exclusivity protection or patent delay, may be granted based on the voluntary completion of a pediatric clinical trial in accordance with an FDA-issued “Written Request” for such a clinical trial.

Orphan drugs

Under the Orphan Drug Act, the FDA may grant orphan drug designation to drugs intended to treat a rare disease or condition—generally a disease or condition that affects fewer than 200,000 individuals in the United States or that affects more than 200,000 individuals in the United States and for which there is no reasonable expectation that costs of research and development of the drug for the indication can be recovered by sales of the drug in the United States. Orphan drug designation must be requested before submitting an NDA.

After the FDA grants orphan drug designation, the generic identity of the drug and its potential orphan use are disclosed publicly by the FDA. Orphan drug designation does not convey any advantage in, or shorten the duration of, the regulatory review and approval process. The first NDA applicant to receive FDA approval for a particular active ingredient to treat a particular disease or condition with FDA orphan drug designation is entitled to a seven-year exclusive marketing period in the United States for that product, for that indication. Among the other benefits of orphan drug designation are tax credits for certain research and a waiver of the NDA application user fee.

During the exclusivity period, the FDA may not approve any other applications to market the same drug for the same disease or condition, except in limited circumstances, such as if the second applicant demonstrates the clinical superiority of its product to the product with orphan drug exclusivity through a demonstration of superior safety, superior efficacy, or a major contribution to patient care. “Same drug” means, a drug that contains the same identity of the active moiety if it is a drug composed of small molecules, or of the principal molecular structural features if it is composed of macromolecules and is intended for the same use as a previously approved drug, except that if the subsequent drug can be shown to be clinically superior to the first drug, it will not be considered to be the same drug. Drug exclusivity does not prevent FDA from approving a different drug for the same disease or condition, or the same drug for a different disease or condition.

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Pediatric information

Under the Pediatric Research Equity Act of 2003, or PREA, as amended, NDAs or supplements to NDAs must contain data adequate to assess the safety and effectiveness of the drug for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the drug is safe and effective. The FDCA requires that a sponsor who is planning to submit a marketing application for a drug product that includes a new active ingredient, new indication, new dosage form, new dosing regimen, or new route of administration to submit an initial Pediatric Study Plan, or PSP, within sixty days of an end-of-phase 2 meeting or as may be agreed between the sponsor and the FDA. The initial PSP must include an outline of the pediatric study or studies that the sponsor plans to conduct, including study objectives and design, age groups, relevant endpoints and statistical approach, or a justification for not including such detailed information, and any request for a deferral of pediatric assessments or a full or partial waiver of the requirement to provide data from pediatric studies along with supporting information. The FDA may, on its own initiative or at the request of the applicant, grant deferrals for submission of data or full or partial waivers. The FDA and the sponsor must reach agreement on the PSP. A sponsor can submit amendments to an agreed-upon initial PSP at any time if changes to the pediatric plan need to be considered based on data collected from preclinical studies, early phase clinical trials, and/or other clinical development programs. Generally, the requirements of PREA do not apply to an application to market a drug for an orphan-designated indication.

Disclosure of clinical trial information

Sponsors of clinical trials of FDA-regulated products, including drugs, are required to register and disclose certain clinical trial information, which is publicly available at www.clinicaltrials.gov. Information related to the product, patient population, phase of investigation, study sites and investigators, and other aspects of the clinical trial is then made public as part of the registration. Sponsors are also obligated to disclose the results of their clinical trials after completion. Competitors may use this publicly available information to gain knowledge regarding the progress of development programs.

Pharmaceutical coverage, pricing and reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any drug products for which we may obtain regulatory approval. In the United States, sales of any products for which we may receive regulatory approval for commercial sale will depend in part on the availability of coverage and reimbursement from third-party payers. Third-party payers include government programs such as Medicare and Medicaid, managed care providers, private health insurers, and other organizations. The process for determining whether a payer will provide coverage for a drug product may be separate from the process for setting the reimbursement rate that the payer will pay for the drug product. In the United States, the principal decisions about reimbursement for new medicines are typically made by the Centers for Medicare & Medicaid Services, or CMS, an agency within the U.S. Department of Health and Human Services. CMS decides whether and to what extent a new medicine will be covered and reimbursed under Medicare and private payers tend to follow CMS to a substantial degree. Third-party payers may limit coverage to specific drug products on an approved list, or formulary, which might not include all of the FDA-approved drugs for a particular indication. Moreover, a payer’s decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved. Adequate third-party reimbursement may not be available to enable us to maintain price levels sufficient to realize an appropriate return on our investment in product development. Third-party payers are increasingly challenging the price and examining the medical necessity and cost- effectiveness of medical products and services, in addition to their safety and efficacy. In order to obtain coverage and reimbursement for any product that might be approved for sale, we may need to conduct expensive pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of any products, in addition to the costs required to obtain regulatory approvals. Factors payers consider in determining reimbursement are based on whether the product is:

• a covered benefit under its health plan;

• safe, effective and medically necessary;

• appropriate for the specific patient;

• cost-effective; and

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• neither experimental nor investigational.

Our product candidates may not be considered medically necessary or cost-effective. If third-party payers do not consider a product to be cost-effective compared to other available therapies, they may not cover the product after approval as a benefit under their plans or, if they do, the level of payment may not be sufficient to allow a company to sell its products at a profit.

The U.S. government and state legislatures have shown significant interest in implementing cost containment programs to limit the growth of government-paid health care costs, including price controls, restrictions on reimbursement and requirements for substitution of generic products for branded prescription drugs. For example, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, collectively, the Affordable Care Act, contains provisions that may reduce the profitability of drug products, including, for example, increased rebates for drugs reimbursed by Medicaid programs, extension of Medicaid rebates to Medicaid managed care plans, mandatory discounts for certain Medicare Part D beneficiaries, and annual fees based on pharmaceutical companies’ share of sales to federal health care programs. At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. Adoption of government controls and measures, and tightening of restrictive policies in jurisdictions with existing controls and measures, could limit payments for pharmaceuticals.

The marketability of any products for which we receive regulatory approval for commercial sale may suffer if the government and third-party payers fail to provide adequate coverage and reimbursement. In addition, an increasing emphasis on cost containment measures in the United States has increased and we expect will continue to increase the pressure on pharmaceutical pricing. Coverage policies and third-party reimbursement rates may change at any time. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future.

Other healthcare laws and compliance requirements

If we obtain regulatory approval of our products, we may be subject to various federal and state laws targeting fraud, waste, and abuse in the healthcare industry. These laws may impact, among other things, our proposed sales, marketing, and education programs. In addition, we may be subject to patient privacy regulation by both the federal government and the states in which we conduct our business. The U.S. laws that may affect our ability to operate include:

• the U.S. federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, receiving, offering or paying remuneration, directly or indirectly, to induce, or in return for, either the referral of an individual, or the purchase or recommendation of an item or service for which payment may be made under a federal healthcare program, such as the Medicare and Medicaid programs. In addition, the government may assert that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the federal civil False Claims Act or federal civil money penalties statute (as discussed below);

• U.S. federal civil and criminal false claims laws and civil monetary penalty laws, including the federal False Claims Act, which impose criminal and civil penalties against individuals or entities for knowingly presenting, or causing to be presented, to the federal government, including the Medicare and Medicaid programs, claims for payment that are false or fraudulent, making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government, or knowingly concealing or knowingly and improperly avoiding or decreasing such an obligation;

• the U.S. federal Health Insurance Portability and Accountability Act of 1996, or HIPAA and its implementing regulations, which created new federal criminal statutes that prohibit executing a scheme to defraud any healthcare benefit program and prohibit knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statements in connection with the delivery of or payment for healthcare benefits, items or services;

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• HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, and their respective implementing regulations, which impose certain obligations, including mandatory contractual terms, on covered healthcare providers, health plans, and healthcare clearinghouses, as well as their business associates, with respect to safeguarding the privacy, security and transmission of individually identifiable health information;

• The U.S. federal Physician Payments Sunshine Act which requires certain manufacturers of drugs, devices, biologics, and medical supplies for which payment is available under Medicare, Medicaid, or the Children’s Health Insurance Program, with specific exceptions, to report annually to the Centers for Medicare & Medicaid Services information related to payments or transfers of value made to physicians (currently defined to include doctors, dentists, optometrists, podiatrists and chiropractors), physician assistants, nurse practitioners, clinical nurse specialists, certified registered nurse anesthetists and teaching hospitals, as well as information regarding ownership and investment interests held by the physicians described above and their immediate family members;

• federal government price reporting laws, which require us to calculate and report complex pricing metrics in an accurate and timely manner to government programs;

• federal consumer protection and unfair competition laws, which broadly regulate marketplace activities and activities that potentially harm consumers; and

• analogous state and laws and regulations in other jurisdictions, such as state anti-kickback and false claims laws, which may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payers, including private insurers, and state and laws in other jurisdiction governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.

Many U.S. states have adopted laws similar to the federal Anti-Kickback Statute and False Claims Act, and may apply to our business practices, including, but not limited to, research, distribution, sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental payors, including private insurers. In addition, some states have passed laws that require pharmaceutical companies to comply with the April 2003 Office of Inspector General Compliance Program Guidance for Pharmaceutical Manufacturers and/or the Pharmaceutical Research and Manufacturers of America’s Code on Interactions with Healthcare Professionals. Several states also impose other marketing restrictions or require pharmaceutical companies to make marketing or price disclosures to the state and require the registration of pharmaceutical sales representatives.

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing.

Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available, in the event we obtain regulatory approval for any one of our products, it is possible that some of our business activities could be subject to challenge and may not comply under one or more of such laws, regulations, and guidance. Law enforcement authorities are increasingly focused on enforcing fraud and abuse laws, and it is possible that some of our practices may be challenged under these laws. Violations of these laws can subject us to administrative, civil and criminal penalties, damages, fines, disgorgement, the exclusion from participation in federal and state healthcare programs, individual imprisonment, reputational harm, and the curtailment or restructuring of our operations, as well as additional reporting obligations and oversight if we become subject to a corporate integrity agreement or other agreement to resolve allegations of non-compliance with these laws. Efforts to ensure that our current and future business arrangements with third parties, and our business generally, will comply with applicable healthcare laws and regulations will involve substantial costs.

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Patient Protection and Affordable Care Ac and Healthcare Reformt

In March 2010, the Patient Protection and Affordable Care Act, or the Affordable Care Act, was enacted, which includes measures that have or will significantly change the way health care is financed by both U.S. governmental and private insurers. Among the provisions of the Affordable Care Act of greatest importance to the pharmaceutical industry are the following:

● The Medicaid Drug Rebate Program requires pharmaceutical manufacturers to enter into and have in effect a national rebate agreement with the Secretary of the Department of Health and Human Services as a condition for states to receive federal matching funds for the manufacturer’s outpatient drugs furnished to Medicaid patients. The Affordable Care Act made several changes to the Medicaid Drug Rebate Program, including increasing pharmaceutical manufacturers’ rebate liability by raising the minimum basic Medicaid rebate on most branded prescription drugs from 15.1% of average manufacturer price, or AMP, to 23.1% of average manufacturer price, or AMP, and adding a new rebate calculation for “line extensions” (i.e., new formulations, such as extended release formulations) of solid oral dosage forms of branded products, as well as potentially impacting their rebate liability by modifying the statutory definition of AMP. The Affordable Care Act also expanded the universe of Medicaid utilization subject to drug rebates by requiring pharmaceutical manufacturers to pay rebates on Medicaid managed care utilization and by expanding the population potentially eligible for Medicaid drug benefits. In addition, the Affordable Care Act provides for the public availability of retail survey prices and certain weighted average AMPs under the Medicaid program.

● In order for a pharmaceutical product to receive federal reimbursement under the Medicare Part B and Medicaid programs or to be sold directly to U.S. government agencies, the manufacturer must extend discounts to entities eligible to participate in the 340B drug pricing program. The required 340B discount on a given product is calculated based on the AMP and Medicaid rebate amounts reported by the manufacturer. The Affordable Care Act expanded the types of entities eligible to receive discounted 340B pricing, although, under the current state of the law, with the exception of children’s hospitals, these newly eligible entities will not be eligible to receive discounted 340B pricing on orphan drugs when used for the orphan indication. In addition, as 340B drug pricing is determined based on AMP and Medicaid rebate data, the revisions to the Medicaid rebate formula and AMP definition described above could cause the required 340B discount to increase.

● Expansion of the eligibility criteria for Medicaid programs by, among other things, allowing states to offer Medicaid coverage to additional individuals and by adding new mandatory eligibility categories for certain individuals with income at or below 133% of the Federal Poverty Level, thereby potentially increasing manufacturers’ Medicaid rebate liability.

● The Affordable Care Act imposed a requirement on manufacturers of branded drugs to provide a 70% discount off the negotiated price of branded drugs dispensed to Medicare Part D patients in the coverage gap (increased from 50% pursuant to the Bipartisan Budget Act of 2018, effective as of 2019).

● The Affordable Care Act imposed an annual, nondeductible fee on any entity that manufactures or imports certain branded prescription drugs, apportioned among these entities according to their market share in certain government healthcare programs, although this fee would not apply to sales of certain products approved exclusively for orphan indications.

● A Patient-Centered Outcomes Research Institute was established pursuant to the Affordable Care Act to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research. The research conducted by the Patient-Centered Outcomes Research Institute may affect the market for certain pharmaceutical products.

● The Affordable Care Act established the Center for Medicare and Medicaid Innovation within CMS, which is charged with testing new, innovative payment and service delivery models.

Since its enactment, there have been judicial, Congressional and executive challenges to certain aspects of the ACA. On June 17, 2021, the U.S. Supreme Court dismissed the most recent judicial challenge to the ACA brought by

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several states without specifically ruling on the constitutionality of the ACA. Prior to the Supreme Court’s decision, President Biden issued an executive order to initiate a special enrollment period from February 15, 2021 through August 15, 2021 for purposes of obtaining health insurance coverage through the ACA marketplace. The executive order also instructed certain governmental agencies to review and reconsider their existing policies and rules that limit access to healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the ACA. It is unclear how other healthcare reform measures of the Biden administration or other efforts, if any, to challenge, repeal or replace the ACA will impact our business.

In addition, other legislative and regulatory changes have been proposed and adopted in the United States since the ACA was enacted:

● On August 2, 2011, the U.S. Budget Control Act of 2011, among other things, included aggregate reductions of Medicare payments to providers of 2% per fiscal year. These reductions went into effect on April 1, 2013 and, due to subsequent legislative amendments to the statute, will remain in effect through 2030, with the exception of a temporary suspension from May 1, 2020 through March 31, 2022 due to the COVID-19 pandemic. Following the temporary suspension, a 1% payment reduction will occur beginning April 1, 2022 through June 30, 2022, and the 2% payment reduction will resume on July 1, 2022.

● On January 2, 2013, the U.S. American Taxpayer Relief Act of 2012 was signed into law, which, among other things, further reduced Medicare payments to several types of providers.

● On April 13, 2017, CMS published a final rule that gives states greater flexibility in setting benchmarks for insurers in the individual and small group marketplaces, which may have the effect of relaxing the essential health benefits required under the ACA for plans sold through such marketplaces.

● On May 30, 2018, the Right to Try Act, was signed into law. The law, among other things, provides a federal framework for certain patients to access certain investigational new drug products that have completed a Phase 1 clinical trial and that are undergoing investigation for FDA approval. Under certain circumstances, eligible patients can seek treatment without enrolling in clinical trials and without obtaining FDA permission under the FDA expanded access program. There is no obligation for a pharmaceutical manufacturer to make its drug products available to eligible patients as a result of the Right to Try Act. 

● On May 23, 2019, CMS published a final rule to allow Medicare Advantage Plans the option of using step therapy for Part B drugs beginning January 1, 2020.

● On December 20, 2019, former President Trump signed into law the Further Consolidated Appropriations Act (H.R. 1865), which repealed the Cadillac tax, the health insurance provider tax, and the medical device excise tax.  It is impossible to determine whether similar taxes could be instated in the future.

Additionally, there has been increasing legislative and enforcement interest in the United States with respect to drug pricing practices. Specifically, there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products, which has resulted in several U.S. Congressional inquiries and proposed and enacted federal and state legislation designed to, among other things, bring more transparency to drug pricing, reduce the cost of prescription drugs under Medicare, and review the relationship between pricing and manufacturer patient programs. At a federal level, President Biden signed an Executive Order on July 9, 2021 affirming the administration’s policy to (i) support legislative reforms that would lower the prices of prescription drug and biologics, including by allowing Medicare to negotiate drug prices, by imposing inflation caps, and, by supporting the development and market entry of lower-cost generic drugs and biosimilars; and (ii) support the enactment of a public health insurance option. Among other things, the Executive Order also directs HHS to provide a report on actions to combat excessive pricing of prescription drugs, enhance the domestic drug supply chain, reduce the price that the Federal government pays for drugs, and address price gouging in the industry; and directs the FDA to work with states and Indian Tribes that propose to develop section 804 Importation Programs in accordance with the Medicare Prescription Drug, Improvement, and Modernization Act of 2003, and the FDA’s implementing regulations. FDA released such implementing regulations on September 24, 2020, which went into effect on November 30, 2020, providing guidance for states to build and submit importation plans for drugs from Canada. On September 25, 2020, CMS stated drugs imported by states under this rule will not be eligible for federal rebates under Section 1927 of the

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Social Security Act and manufacturers would not report these drugs for “best price” or Average Manufacturer Price purposes. Since these drugs are not considered covered outpatient drugs, CMS further stated it will not publish a National Average Drug Acquisition Cost for these drugs. If implemented, importation of drugs from Canada may materially and adversely affect the price we receive for any of our product candidates. Further, on November 20, 2020 CMS issued an Interim Final Rule implementing the Most Favored Nation, or MFN, Model under which Medicare Part B reimbursement rates would have been be calculated for certain drugs and biologicals based on the lowest price drug manufacturers receive in Organization for Economic Cooperation and Development countries with a similar gross domestic product per capita. However, on December 29, 2021 CMS rescinded the Most Favored Nations rule. Additionally, on November 30, 2020, HHS published a regulation removing safe harbor protection for price reductions from pharmaceutical manufacturers to plan sponsors under Part D, either directly or through pharmacy benefit managers, unless the price reduction is required by law. The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well as a safe harbor for certain fixed fee arrangements between pharmacy benefit managers and manufacturers. Pursuant to court order, the removal and addition of the aforementioned safe harbors were delayed and recent legislation imposed a moratorium on implementation of the rule until January 1, 2026. Although a number of these and other proposed measures may require authorization through additional legislation to become effective, and the Biden administration may reverse or otherwise change these measures, both the Biden administration and Congress have indicated that they will continue to seek new legislative measures to control drug costs.

We expect that additional U.S. federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that the U.S. Federal Government will pay for healthcare drugs and services, which could result in reduced demand for our drug candidates or additional pricing pressures.

European Union regulation

Brexit

On June 23, 2016, the electorate in the UK voted in favor of leaving the EU (commonly referred to as “Brexit”), and the UK formally left the EU on January 31, 2020. There was a transition period during which EU pharmaceutical law remained applicable to the UK, which ended on December 31, 2020. However, the EU and the UK have concluded a trade and cooperation agreement, or TCA, which was provisionally applicable since January 1, 2021 and has been formally applicable since May 1, 2021. The TCA includes specific provisions concerning pharmaceuticals, which include the mutual recognition of GMP, inspections of manufacturing facilities for medicinal products and GMP documents issued, but does not foresee wholesale mutual recognition of UK and EU pharmaceutical regulations. At present, Great Britain has implemented EU legislation on the marketing, promotion and sale of medicinal products through the Human Medicines Regulations 2012 (as amended) (under the Northern Ireland Protocol, the EU regulatory framework will continue to apply in Northern Ireland). The regulatory regime in Great Britain therefore currently broadly aligns with EU regulations, however it is possible that these regimes will diverge in future now that Great Britain’s regulatory system is independent from the EU and the TCA does not provide for mutual recognition of UK and EU pharmaceutical legislation. For example, the new Clinical Trials Regulation which became effective in the EU on January 31, 2022 and provides for a streamlined clinical trial application and assessment procedure covering multiple EU Member States has not been implemented into UK law, and a separate application will need to be submitted for clinical trial authorization in the UK.

Regulation in the European Union

Product development, the regulatory approval process, and safety monitoring of medicinal products and their manufacturers in the EU proceed in much the same manner as they do in the United States. Therefore, many of the issues discussed above apply similarly in the context of the EU. In addition, drugs are subject to the extensive price and reimbursement regulations of the various EU Member States.

Clinical trials

In April 2014, the EU adopted the new Clinical Trials Regulation (EU) No 536/2014), which replaced the Clinical Trials Directive. The Clinical Trials Regulation entered into application on January 31, 2022. The transitory provisions of the Clinical Trials Regulation offer sponsors the possibility to choose between the requirements of the previous Clinical Trials Directive and the Clinical Trials Regulation if the request for authorization of a clinical trial is submitted in the year after the Clinical Trials Regulation became applicable. If the sponsor chooses to submit under the Clinical

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Trials Directive, the clinical trial continues to be governed by the Clinical Trial Directive until three years after the Clinical Trials Regulation became applicable. If a clinical trial continues for more than three years after the Clinical Trials Regulation became applicable, the Clinical Trials Regulation will at that time begin to apply to the clinical trial. The Clinical Trials Regulation harmonises the assessment and supervision processes for clinical trials throughout the EU, via a Clinical Trials Information System (CTIS). CTIS contains the centralised EU portal and database for clinical trials foreseen by the Regulation. The EMA sets up and maintains CTIS, in collaboration with the Member States and the European Commission.

The goal of the Clinical Trials Regulation is to create an environment that is favourable to conducting clinical trials in the EU, with the highest standards of safety for participants and increased transparency of trial information. The Regulation requires:

● consistent rules for conducting clinical trials throughout the EU;

● information on the authorisation, conduct and results of each clinical trial carried out in the EU to be publicly available.

This will increase the efficiency of all trials in the EU with the greatest benefit for those conducted in multiple Member States. It aims to foster innovation and research, while helping avoid unnecessary duplication of clinical trials or repetition of unsuccessful trials. The key benefits of the Regulation include:

● harmonised electronic submission and assessment process for clinical trials conducted in multiple Member States;

● improved collaboration, information-sharing and decision-making between and within Member States;

● increased transparency of information on clinical trials; and

● highest standards of safety for all participants in EU clinical trials

The authorisation and oversight of clinical trials remains the responsibility of Member States, with EMA managing CTIS and supervising content publication on the public website.

Marketing approval

Marketing approvals in the EU may be obtained through a centralized, mutual recognition or decentralized procedure. The centralized procedure results in the grant of a single marketing authorization that is valid throughout the Member States, as well as the additional Member States of the European Economic Area (Norway, Iceland and Liechtenstein).

Pursuant to Regulation (EC) No. 726/2004, as amended, the centralized procedure is mandatory for certain products, including those developed by means of specified biotechnological processes, advanced therapy medicinal products (gene therapy, somatic cell therapy, and tissue-engineered products), products for human use containing a new active substance for which the therapeutic indication is the treatment of specified diseases, including AIDS, HIV, cancer, diabetes, neurodegenerative disorders, auto-immune diseases and other immune dysfunctions and viral diseases, as well as products designated as orphan medicinal products. The Committee for Medicinal Products for Human Use, or CHMP, of the EMA also has the discretion to permit other products to use the centralized procedure if it considers them sufficiently innovative or they contain a new active substance or they may be of benefit to public health at the EU level.

In the marketing authorization application, or MAA, the applicant has to properly and sufficiently demonstrate the quality, safety, and efficacy of the drug. Under the centralized approval procedure, the CHMP, possibly in conjunction with other committees, is responsible for drawing up the opinion of the EMA on any matter concerning the admissibility of the files submitted in accordance with the centralized procedure, such as an opinion on the granting, variation, suspension or revocation of a marketing authorization, and pharmacovigilance.

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The CHMP and other committees are also responsible for providing guidelines and have published numerous guidelines that may apply to our product candidates. These guidelines provide additional guidance on the factors that the EMA will consider in relation to the development and evaluation of drug products and may include, among other things, the preclinical studies required in specific cases; and the manufacturing and control information that should be submitted in a MAA; and post-approval measures required to monitor patients and evaluate the long-term efficacy and potential adverse reactions. Although these guidelines are not legally binding, we believe that our compliance with them is likely necessary to gain approval for any of our product candidates. Following Article 6(3), first subparagraph, of Regulation (EC) No. 726/2004, the maximum timeframe for the evaluation of an MAA by the CHMP under the centralized procedure is 210 days after receipt of a valid application, excluding clock stops, when additional written or oral information is to be provided by the applicant in response to questions asked by the CHMP. Clock stops may extend the timeframe of evaluation of a MAA considerably beyond 210 days. When an application is submitted for a marketing authorization in respect of a drug which is of major interest from the point of view of public health and in particular from the viewpoint of therapeutic innovation, the applicant may request an accelerated assessment procedure. If the CHMP accepts such request, the time limit of 210 days will be reduced to 150 days (not including clock stops), according to Article 14(9) of Regulation (EC) No. 726/2004, but it is possible that the CHMP can revert to the standard time limit for the centralized procedure if it considers that it is no longer appropriate to conduct an accelerated assessment.

If the CHMP concludes that the quality, safety, and efficacy of the product are sufficiently proven, it adopts a positive opinion. This is sent to the European Commission which drafts a decision. After consulting with the Member States, the European Commission adopts a decision and grants a marketing authorization, which is valid for the whole of the EU. The marketing authorization may be subject to certain conditions, which may include, without limitation, the performance of post-authorization safety and/or efficacy studies. Pursuant to Regulation (EC) No. 726/2004, a new marketing authorization is valid for five years and may be renewed for an unlimited period on the basis of a re-evaluation of the risk-benefit balance after submission of a consolidated version of the initial marketing authorization application in addition to the pharmacovigilance data reported and all variations introduced since granting of the marketing authorization. The marketing authorization shall cease to be valid if the grant of such marketing authorization is not followed by the actual launch of the product on the market within three years or, if the product is no longer available on the market for three consecutive years.

Now that the UK (which comprises Great Britain and Northern Ireland) has left the EU, Great Britain will no longer be covered by centralized marketing authorizations (under the Northern Ireland Protocol, centralized marketing authorizations will continue to be recognized in Northern Ireland). All medicinal products with a current centralized marketing authorization were automatically converted to Great Britain marketing authorizations on January 1, 2021. For a period of two years from January 1, 2021, the Medicines and Healthcare products Regulatory Agency, or MHRA, the UK medicines regulator, may rely on a decision taken by the European Commission on the approval of a new marketing authorization in the centralized procedure, in order to more quickly grant a new Great Britain marketing authorization. A separate application will, however, still be required.

European Union legislation also provides for a system of regulatory data and market exclusivity. According to Article 14(11) of Regulation (EC) No. 726/2004, as amended, and Article 10(1) of Directive 2001/83/EC, as amended, upon receiving marketing authorization, innovative medicinal products approved on the basis of a complete independent data package benefit from eight years of data exclusivity and an additional two years of market exclusivity. Data exclusivity prevents generic or biosimilar applicants from referencing the innovator’s pre-clinical or clinical trials data contained in the dossier of the reference product when applying for a generic or biosimilar marketing authorization, for a period eight years from the date on which the reference product was first authorized in the EU. During the additional two-year period of market exclusivity, a generic or biosimilar marketing authorization can be submitted, and the innovator’s data may be referenced, but no generic or biosimilar medicinal product can be marketed until the expiration of the market exclusivity. The overall ten-year period will be extended to a maximum of eleven years if, during the first eight years of those ten years, the marketing authorization holder, or MAH, obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to their authorization, are held to bring a significant clinical benefit in comparison with existing therapies. There is no guarantee that a product will be considered by the EMA to be an innovative medicinal product, and products may not qualify for data exclusivity. Even if a compound is considered to be an innovative medicine and the innovator is able to gain the period of data exclusivity, another company nevertheless could also market another version of the drug if such company obtained marketing authorization based on an MAA with a complete independent data package of pharmaceutical test, preclinical tests and clinical trials. However, products designated as orphan medicinal products enjoy, upon receiving marketing authorization, a period of 10 years of orphan market exclusivity limited to the therapeutic indication for which orphan designation has been

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obtained—see also “—Orphan Regulation.” Depending upon the timing and duration of the EU marketing authorization process, products may be eligible for up to five years’ supplementary protection certification, or SPC, pursuant to Regulation (EC) No. 469/2009. Such SPCs extend the rights under the basic patent for the drug.

Orphan regulation

In the EU, Regulation (EC) No. 141/2000, as amended, states that a product will be designated as an orphan medicinal product if its sponsor can establish:

● that (i) it is intended for the diagnosis, prevention or treatment of a life-threatening or chronically debilitating condition;

● (ii) either such condition affects not more than five in ten thousand persons in the EU when the application is made, or where without incentives it is unlikely that the marketing of the product in the EU would generate sufficient return to justify the necessary investment in its development; and

● (iii)there exists no satisfactory method of diagnosis, prevention or treatment of the condition in question that has been authorized in the EU or, if such method exists, that the product will be of significant benefit to those affected by that condition.

Regulation (EC) No. 847/2000 sets out further provisions for implementation of the criteria for designation of a products as an orphan medicinal product. An application for the designation of a product as an orphan medicinal products must be submitted at any stage of development of the drug before filing of a marketing authorization application.

If an EU-wide centralized marketing authorization in respect of an orphan product is granted or if all the EU Member States have granted marketing authorizations in accordance with the procedures for mutual recognition, the EMA and the Member States will not, for a period of 10 years, accept another application for a marketing authorization, or grant a marketing authorization or accept an application to extend an existing marketing authorization, for the same therapeutic indication, in respect of a ”similar medicinal product”. A “similar medicinal product” is defined as a medicinal product containing a similar active substance or substances as contained in an authorized orphan medicinal product, and which is intended for the same therapeutic indication. This period may however be reduced to six years if, at the end of the fifth year, it is established, with respect to the product concerned, that the criteria for orphan medicinal product designation are no longer met, such as when it is shown on the basis of available evidence that the product is sufficiently profitable not to justify maintenance of market exclusivity (cfr. Article 8(s) of Regulation (EC) No. 141/200). Notwithstanding the foregoing, Regulation (EC) No. 141/2000 states that a marketing authorization may be granted, for the same therapeutic indication, to a similar medicinal product if:

● the holder of the marketing authorization for the original orphan medicinal product has given its consent to the second applicant;

● the holder of the marketing authorization for the original orphan medicinal product is unable to supply sufficient quantities of the product; or

● the second applicant can establish in the application that the second product, although similar to the orphan medicinal product already authorized, is safer, more effective or otherwise clinically superior.

Other incentives available to orphan medicinal products in the EU include financial incentives such as a reduction of fees or fee waivers and protocol assistance. Orphan medicinal product designation does not convey any advantage in, or shorten the duration of the regulatory review and approval process.

Pediatric investigation plan

An application for marketing authorization of a medicinal product for human use which is not yet authorized in the EU shall be considered valid only if it includes a pediatric investigation plan, or PIP, according to Regulation (EC) No. 1901/2006, unless a waiver or deferral applies (for example if the disease or condition for which the product is intended

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occurs only in adult populations). The PIP or the application for waiver shall be submitted with a request for agreement, except in duly justified cases, early during the product development phase and not later than upon completion of the human pharmacokinetic studies in healthy subjects. In any case, submission of the PIP cannot be after initiation of pivotal trials or confirmatory (Phase 3) trials. The PIP sets out the timing and measures proposed to generate data to support a pediatric indication of the drug for which marketing authorization is being sought.

The Pediatric Committee, or PDCO, a scientific committee of the EMA, shall assess the content of any PIP, waivers and deferrals for a medicinal product submitted to it in accordance with the regulation on medicinal products for pediatric use and formulate an opinion thereon. If a marketing authorization is obtained and trial results in accordance with an agreed PIP are included in the product information, even when negative, the product is eligible for six months’ supplementary protection certificate extension. In the case of orphan medicinal products, a two year extension of the orphan market exclusivity may be available. This pediatric reward is subject to specific conditions and is not automatically available when data in compliance with the PIP are developed and submitted.

Manufacturing and manufacturers’ license

Pursuant to Directive 2003/94/EC, as transposed into the national laws of the Member States, the manufacturing of investigational medicinal products and approved products is subject to a separate manufacturer’s license and must be conducted in strict compliance with cGMP requirements, which mandate the methods, facilities, and controls used in manufacturing, processing, and packing of drugs to assure their safety and identity. Manufacturers must have at least one qualified person permanently and continuously at their disposal. The qualified person is ultimately responsible for certifying that each batch of finished product released onto the market has been manufactured in accordance with cGMP and the specifications set out in the marketing authorization or investigational medicinal product dossier. cGMP requirements are enforced through mandatory registration of facilities and inspections of those facilities. Failure to comply with these requirements could interrupt supply and result in delays, unanticipated costs and lost revenues, and subject the applicant to potential legal or regulatory action, including but not limited to warning letters, suspension of manufacturing, seizure of product, injunctive action or possible civil and criminal penalties.

Wholesale distribution and license

Pursuant to Directive 2001/83/EC, the wholesale distribution of medicinal products is subject to the possession of an authorization to engage in activity as a wholesaler in medicinal products. Possession of a manufacturing authorization includes authorization to distribute by wholesale the medicinal products covered by that authorization. The distribution of medicinal products must comply with the principles and guidelines of good distribution practices, or GDP.

Advertising

In the EU, the promotion of prescription medicines is subject to intense regulation and control, including EU and national legislation as well as self-regulatory codes (industry codes). Advertising legislation inter alia includes a prohibition on direct-to-consumer advertising of prescription only medicinal products. All prescription medicines advertising must be consistent with the product’s approved summary of product characteristics, and must be factual, accurate, balanced and not misleading. Advertising of prescription medicines to healthcare professionals pre-approval or off-label is not allowed.

Some jurisdictions require that all promotional materials for prescription medicines be subjected to either prior internal review and approval or regulatory review and approval.

Collection and use of personal data in the EU

As of May 25, 2018, the General Data Protection Regulation (“GDPR”) regulates the collection and use of personal data in the EU. The GDPR covers any business, regardless of its location, that provides goods or services to residents in the EU and, thus, could incorporate our activities in EU Member States. The GDPR imposes strict requirements on controllers and processors of personal data, including special protections for “sensitive information,” which includes health and genetic information of individuals residing in the EU. The GDPR grants individuals the opportunity to object to the processing of their personal information, allows them to request deletion of personal information in certain circumstances, and provides the individual with an express right to seek legal remedies in the event the individual believes his or her rights have been violated. Further, the GDPR imposes strict rules on the transfer

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of personal data out of the EU to regions that have not been deemed to offer “adequate” privacy protections, such as the U.S. currently. Failure to comply with the requirements of the GDPR and the related national data protection laws of the EU Member States, which may deviate slightly from the GDPR, may result in warning letters, mandatory audits and financial penalties, including fines of up to 4 percent of global revenues, or €20,000,000, whichever is greater. As a result of the implementation of the GDPR, we may be required to put in place additional mechanisms ensuring compliance with the new data protection rules. In addition, once we begin to conduct business in the United Kingdom, we will be subject to stringent data protection laws that are in effect in the UK. As of January 1, 2021, the UK’s European Union (Withdrawal) Act 2018 incorporated the GDPR (as it existed on December 31, 2020 but subject to certain UK specific amendments) into UK law, referred to as the UK GDPR. The UK GDPR and the UK Data Protection Act 2018 set out the United Kingdom’s data protection regime, which is independent from but aligned to the European Union’s data protection regime. Non-compliance with the UK GDPR may result in monetary penalties of up to £17.5 million or 4% of worldwide revenue, whichever is higher. Although the UK is regarded as a third country under the EU’s GDPR, the European Commission has now issued a decision recognizing the UK as providing adequate protection under the EU GDPR and, therefore, transfers of personal data originating in the EU to the UK remain unrestricted. Like the EU GDPR, the UK GDPR restricts personal data transfers outside the UK to countries not regarded by the UK as providing adequate protection. The UK government has confirmed that personal data transfers from the UK to the EU remain free flowing.

There is significant uncertainty related to the manner in which data protection authorities will seek to enforce compliance with GDPR. For example, it is unclear whether the authorities will conduct random audits of companies doing business in the EU, or act solely after complaints are filed claiming a violation of the GDPR. The lack of compliance standards and precedent, enforcement uncertainty and the costs associated with ensuring GDPR compliance may be onerous and adversely affect our business, financial condition, results of operations and prospects.

Other regulatory requirements

A marketing authorization holder, or MAH, for a medicinal product is legally obliged to fulfill a number of obligations by virtue of its status as an MAH. The MAH can delegate the performance of related tasks to third parties, such as distributors or marketing partners, provided that this delegation is appropriately documented and the MAH maintains legal responsibility and liability.

The obligations of an MAH include:

Manufacturing and batch release. MAHs should guarantee that all manufacturing operations comply with relevant laws and regulations, applicable good manufacturing practices, with the product specifications and manufacturing conditions set out in the marketing authorization and that each batch of product is subject to appropriate release formalities.

Availability and continuous supply. Pursuant to Directive 2001/83/EC, as transposed into the national laws of the Member States, the MAH for a medicinal product and the distributors of the said medicinal product actually placed on the market in a Member State shall, within the limits of their responsibilities, ensure appropriate and continued supplies of that medicinal product to pharmacies and persons authorized to supply medicinal products so that the needs of patients in the Member State in question are covered.

Pharmacovigilance. MAHs are obliged to establish and maintain a pharmacovigilance system, including a qualified person responsible for oversight, submit safety reports to the regulators and comply with the good pharmacovigilance practice guidelines adopted by the EMA.

Advertising and promotion. MAHs remain responsible for all advertising and promotion of its products, including promotional activities by other companies or individuals on their behalf and in some cases must conduct internal or regulatory pre-approval of promotional materials. Regulation in this area also covers interactions with healthcare practitioners and/or patient groups, and in some jurisdictions legal or self-regulatory obligations to disclose such interactions exist.

Medical affairs/scientific service. MAHs are required to disseminate scientific and medical information on its medicinal products to healthcare professionals, regulators and patients. Legal representation and distributor issues. MAHs are responsible for regulatory actions or inactions of their distributors and agents.

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Preparation, filing and maintenance of the application and subsequent marketing authorization. MAHs must maintain appropriate records, comply with the marketing authorization’s terms and conditions, fulfill reporting obligations to regulators, submit renewal applications and pay all appropriate fees to the authorities. We may hold any future marketing authorizations granted for our product candidates in our own name, or appoint an affiliate or a collaboration partner to hold marketing authorizations on our behalf. Any failure by an MAH to comply with these obligations may result in regulatory action against an MAH and ultimately threaten our ability to commercialize our products.

Price and reimbursement

In the EU, the pricing and reimbursement mechanisms by private and public health insurers vary largely by country and even within countries. The public systems reimbursement for standard products is determined by guidelines established by the legislator or responsible national authority. The approach taken varies by Member State. Some jurisdictions operate positive and negative list systems under which products may only be marketed once a reimbursement price has been agreed. Other Member States allow companies to fix their own prices for medicines, but monitor and control company profits and may limit or restrict reimbursement. The downward pressure on healthcare costs in general, particularly prescription drugs, has become very intense. As a result, increasingly high barriers are being erected to the entry of new products and some of EU Member States require the completion of studies that compare the cost-effectiveness of a particular product candidate to currently available therapies in order to obtain reimbursement or pricing approval. Special pricing and reimbursement rules may apply to orphan medicinal products. Inclusion of orphan medicinal products in reimbursement systems tend to focus on the medical usefulness, need, quality and economic benefits to patients and the healthcare system as for any product. Acceptance of any medicinal product for reimbursement may come with cost, use and often volume restrictions, which again can vary by country. In addition, results based rules of reimbursement may apply.

The aforementioned EU rules are generally applicable in the European Economic Area, or EEA, which consists of the EU Member States, plus Norway, Liechtenstein and Iceland.

Legal proceedings

From time to time we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. We are not presently a party to any legal proceedings that, if determined adversely to us, would individually or taken together have a material adverse effect on our business, results of operations, financial condition or cash flows. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

Glossary of terms

Glossary of terms, to be read only in conjunction with this annual report.

100 points clinical response	Percentage of patients achieving a 100-point decrease in CDAI score during a clinical trial in CD patients
ACR	American College of Rheumatology
ACR20 (ACR 20/50/70)	American College of Rheumatology 20% response rate signifies a 20% or greater improvement in the number of swollen and tender joints as well as a 20% or greater improvement in three out of five other disease-activity measures. ACR50 and ACR70 reflect the same, for 50% and 70% response rates, respectively
ADPKD	Autosomal dominant polycystic kidney disease, a disease where typically both kidneys become enlarged with fluid-filled cysts, leading to kidney failure. Other organs may be affected as well
ADS	American Depositary Share; Galapagos has a Level 3 ADS listed on Nasdaq with ticker symbol GLPG and CUSIP number 36315X101. One ADS is equivalent to one ordinary share in Galapagos NV
AFM	Dutch Authority for the Financial Markets
Anemia	Condition in which the patient has an inadequate number of red blood cells to carry oxygen to the body’s tissues
Anti-TNF	Tumor necrosis factor. An anti-TNF drug acts by modulation of TNF

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Assays	Laboratory tests to determine characteristics
Attrition rate	The historical success rate for drug discovery and development, based on publicly known development paths. Statistically seen, investment in at least 12 target-based programs is required to ensure that at least one of these will reach a Phase 3 study. Most new drug R&D programs are discontinued before reaching Phase 3 because they are not successful enough to be approved
BID dosing	Twice-daily dosing (bis in die)
Bioavailability	Assessment of the amount of product candidate that reaches a body’s systemic circulation after (oral) administration
Biomarker	Substance used as an indicator of a biological process, particularly to determine whether a product candidate has a biological effect
Black & Scholes model	A mathematical description of financial markets and derivative investment instruments that is widely used in the pricing of European options and subscription rights
Bridging trial	Clinical trial performed to "bridge" or extrapolate one dataset to that for another situation, i.e. to extrapolate data from one population to another for the same drug candidate, or to move from IV to subcutaneous dosing
CALOSOMA	Phase 1 program with GLPG3970 in psoriasis
Cash position	Current financial investments and cash and cash equivalents
CDAI	Crohn’s Disease Activity Index, evaluating patients on eight different factors, each of which has a pre-defined weight as a way to quantify the impact of CD
CDAI remission	In the FITZROY trial, the percentage of patients with CD who showed a reduction of CDAI score to <150
CFTR	Cystic fibrosis transmembrane conductance regulator (CFTR) is a membrane protein and chloride channel in vertebrates that is encoded by the CFTR gene. It is hypothesized that inhibition of the CFTR channel might reduce cyst growth and enlargement for patients with ADPKD. GLPG2737 is a CFTR inhibitor
CHIT1/AMCase	Chitotriosidase (CHIT1) is a protein coding gene, and AMCase is an inactive acidic mamalian chitinase. CHIT1 is predominantly involved in macrophage activation. Inhibition of chitinase activity translates into a potential therapeutic benefit in lung diseases like IPF, as shown in preclinical models. GLPG4716 is a CHIT1/AMCase inhibitor targeting a key pathway in tissue remodeling
Chitinase	Chitinase is an enzyme that degrades chitin, involved in the human innate immunity. Inhibition of chitinase activity translates into a potential therapeutic benefit in lung diseases like IPF, as shown in preclinical models
CHMP	Committee for Medicinal Products for Human Use is the European Medicines Agency's (EMA) committee responsible for human medicines and plays a vital role in the authorization of medicines in the European Union (EU)
CIR	Crédit d’Impôt Recherche, or research credit. Under the CIR, the French government refunds up to 30% of the annual investment in French R&D operations, over a period of three years. Galapagos benefits from the CIR through its operations in Romainville, just outside Paris
Clinical Proof of Concept (PoC)	Point in the drug development process where the product candidate first shows efficacy in a therapeutic setting
Complete Response Letter (CRL)	A letter send by the FDA to indicate that the review cycle for an application is complete and the application is not ready for approval in its present form
Compound	A chemical substance, often a small molecule with drug-like properties
Contract research organization (CRO)	Organization which provides drug discovery and development services to the pharmaceutical, biotechnology and medical devices industry
Corticosteroids	Any of a group of steroid hormones produced in the adrenal cortex or made synthetically. They have various metabolic functions and some are used to treat inflammation
Crohn's disease (CD)	An IBD involving inflammation of the small and large intestines, leading to pain, bleeding, and ultimately in some cases surgical removal of parts of the bowel
CRP	C-reactive protein is a protein found in the blood, the levels of which rise in response to inflammation
Cytokine	A category of small proteins which play important roles in signaling in processes in the body

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DARWIN	Phase 2 program for filgotinib in RA. DARWIN 1 explored three doses, in twice-daily and once-daily administration, for up to 24 weeks in RA patients with insufficient response to methotrexate (MTX) and who remained on their stable background treatment with MTX. DARWIN 2 explored three once-daily doses for up to 24 weeks in RA patients with insufficient response to methotrexate (MTX) and who washed out of their treatment with MTX. DARWIN 1 and 2 were double-blind, placebo-controlled trials which recruited approximately 900 patients globally and for which results were reported in 2015. DARWIN 3 is a long term extension trial in which all patients are on 200 mg filgotinib, except for U.S. males who are on 100 mg. The week 156 results from DARWIN 3 were reported in 2019
DAS28 (CRP)	DAS28 is an RA Disease Activity Score based on a calculation that uses tender and swollen joint counts of 28 defined joints, the physician’s global health assessment and a serum marker for inflammation, such as C- reactive protein. DAS28 (CRP) includes the C-reactive protein score calculation: scores range from 2.0 to 10.0, with scores below 2.6 being considered remission
DDI study	Drug-drug interaction study. This type of study will assess if there is a change in the action or side effects of a drug caused by concomitant administration with another drug
Deep venous thrombosis (DVT)	The formation of one or more blood clots in one of the body's large veins, most commonly in the lower limbs. The blood clots can travel to the lung and cause a pulmonary embolism
Degradation	The process by which proteins are lost through the use of drugs such as PROTACs or small molecules
Development	All activities required to bring a new drug to the market. This includes preclinical and clinical development research, chemical and pharmaceutical development and regulatory filings of product candidates
Discovery	Process by which new medicines are discovered and/or designed. At Galapagos, this is the department that oversees target and drug discovery research through to nomination of preclinical candidates
Disease-modifying	Addresses the disease itself, modifying the disease progression, not just the symptoms of the disease
DIVERGENCE	Phase 2 programs with filgotinib in Crohn's disease. DIVERGENCE 1 was an exploratory study in small bowel CD and DIVERGENCE 2 in fistulizing CD
DIVERSITY	Phase 3 program evaluating filgotinib in CD
DMARDs	Disease modifying anti rheumatic drugs; these drugs address the disease itself rather than just the symptoms
Dose-range finding study	Phase 2 clinical study exploring the balance between efficacy and safety among various doses of treatment in patients. Results are used to determine doses for later studies
Double-blind	Term to characterize a clinical trial in which neither the physician nor the patient knows if the patient is taking placebo or the treatment being evaluated
EC	European Commission
Efficacy	Effectiveness for intended use
EMA	European Medicines Agency, in charge of European market authorization of new medications
Endoscopy	A non-surgical procedure involving use of an endoscope to examine a person’s digestive tract
Fast Track	A designation by the FDA of an investigational drug for expedited review to facilitate development of drugs which treat a serious or life-threatening condition and fill an unmet medical need
FDA	The U.S. Food and Drug Administration is an agency responsible for protecting and promoting public health and in charge of American market approval of new medications
Fee-for-service	Payment system where the service provider is paid a specific amount for each procedure or service performed
FIH	First-in-human clinical trial, usually conducted in healthy volunteers with the aim to assess the safety, tolerability and pharmacokinetics of the product candidate
Filgotinib	Formerly known as GLPG0634, commercial name is Jyseleca. Small molecule preferential JAK1 inhibitor, approved in RA in European Union, Great Britain, and Japan, and in UC in European Union and Great Britain. Application for approval for ulcerative colitis was filed in Japan. Filgotinib is partnered with Gilead. Filgotinib currently is in Phase 3 trials in CD, and in a Phase 4 trial in RA

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FILOSOPHY	Phase 4 program evaluating filgotinib in RA
FINCH	Phase 3 program evaluating filgotinib in RA
Fistulizing CD	Fistulae are inflammatory tracts that most often occur between the distal colon and the perianal region. Fistulae are one of the most severe sequelae of luminal CD and the lifetime risk of occurrence is close to 50% of those with active CD
FITZROY	A double-blind, placebo controlled Phase 2 trial with filgotinib in 177 CD patients for up to 20 weeks. Full results were published in The Lancet in 2016
FORM 20-F	Form 20-F is an SEC filing submitted to the US Securities and Exchange Commission
FSMA	The Belgian market authority: Financial Services and Markets Authority, or Autoriteit voor Financiële Diensten en Markten
FTE	Full-time equivalent; a way to measure an employee’s involvement in a project. For example, an FTE of 1.0 means that the equivalent work of one full-time worker was used on the project
Futility analysis	Analysis of the likelihood of a trial to meet its primary endpoint, based on a subset of the total information to be gathered. The term 'futility' is used to refer to the low likelihood of a clinical trial to achieve its objectives. In particular, stopping a clinical trial when the interim results suggest that it is unlikely to achieve statistical significance can save resources that could be used on more promising research
G&A expenses	General & administrative expenses
Genome	An organism's complete set of genetic information needed to build that organism and allow it to grow and develop
GLIDER	Phase 2 Proof of Concept trial with SIK2/3 inhibitor GLPG3970 in Sjögren's syndrome
GLPG0555	A JAK1 inhibitor currently in Phase 1b in osteoarthritis
GLPG0634	Molecule number currently known as filgotinib and Jyseleca
GLPG1690	Autotaxin inhibitor discovered by us and currently known as ziritaxestat. All development with ziritaxestat was discontinued in February 2021
GLPG2737	A compound currently in Phase 2 in ADPKD. This compound is part of the CF collaboration with AbbVie but Galapagos retained rights outside of CF
GLPG3121	A compound currently in Phase 1 targeting JAK1/TYK2 directed toward inflammation (IBD)
GLPG3667	A TYK2 kinase inhibitor discovered by us, topline results from the Phase 1b in psoriasis reported in July 2021
GLPG3970	A SIK2/3 inhibitor currently in multiple Phase 2 Proof of Concept studies. Topline results from the studies in UC, psoriasis and RA reported in July 2021
GLPG4399	A SIK3 inhibitor currently in Phase 1 directed toward inflammation
GLPG4586	A compound with undisclosed mode of action currently in the preclinical phase directed toward fibrosis. This is the first preclinical candidate to emerge from the collaboration with Fibrocor
GLPG4605	A SIK2/3 inhibitor in the preclinical phase, currently directed toward fibrosis
GLPG4716	A chitinase inhibitor inlicensed from OncoArendi in preparation for Phase 2 in IPF
HDL	High-density lipoprotein. HDL scavenges and reduces low-density lipoprotein (LDL) which contributes to heart disease at high levels. High levels of HDL reduce the risk for heart disease, while low levels of HDL increase the risk of heart disease
Hemoglobin	A protein inside red blood cells that carries oxygen from the lungs to tissues and organs in the body and carries carbon dioxide back to the lungs
Histology	Study of the microscopic structures of tissues
Histopathology	Microscopic examination of tissues for manifestations of a disease
IBD	Inflammatory Bowel Disease. This is a general term for an autoimmune disease affecting the bowel, including CD and UC. CD affects the small and large intestine, while UC affects the large intestine. Both diseases involve inflammation of the intestinal wall, leading to pain, bleeding, and ultimately, in some cases, surgical removal of part of the bowel
In vitro	Studies performed with cells outside their natural context, for example in a laboratory
In vivo	Studies performed with animals in a laboratory setting
In-/out-licensing	Receiving/granting permission from/to another company or institution to use a brand name, patent, or other proprietary right, in exchange for a fee and/or royalty
Inflammatory diseases	A large, unrelated group of disorders associated with abnormalities in inflammation

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Intellectual property	Creations of the mind that have commercial value and are protected or protectable, including by patents, trademarks or copyrights
Intersegment	Occurring between the different operations of a company
Investigational New Drug (IND) Application	United States Federal law requires a pharmaceutical company to obtain an exemption to ship an experimental drug across state lines, usually to clinical investigators, before a marketing application for the drug has been approved. The IND is the means by which the sponsor obtains this exemption, allowing them to perform clinical studies
IPF	Idiopathic pulmonary fibrosis. A chronic and ultimately fatal disease characterized by a progressive decline in lung function. Pulmonary fibrosis involves scarring of lung tissue and is the cause of shortness of breath. Fibrosis is usually associated with a poor prognosis. The term “idiopathic” is used because the cause of pulmonary fibrosis is still unknown
JAK	Janus kinases (JAK) are critical components of signaling mechanisms utilized by a number of cytokines and growth factors, including those that are elevated in RA. Filgotinib is a preferential JAK1 inhibitor
Jyseleca®	Jyseleca® is the brand name for filgotinib
LADYBUG	Phase 2 program with GLPG3970 in rheumatoid arthritis
LDL	Low-density lipoprotein. LDL contributes to heart disease at high levels
Lipoprotein	Lipoproteins are substances made of protein and fat that carry cholesterol through your bloodstream. There are two main types of cholesterol: High-density lipoprotein (HDL), or "good" cholesterol and Low-density lipoprotein (LDL), or "bad" cholesterol
Liver enzymes	Inflamed or injured liver cells secrete higher than normal amounts of certain chemicals, including liver enzymes, into the bloodstream
Lymphocyte	Type of white blood cell that is part of the immune system
MACE	Major adverse cardiovascular events; a composite endpoint frequently used in cardiovascular research
MANGROVE	Phase 2 program with GLPG2737 in autosomal dominant polycystic kidney disease
MANTA	A Phase 2 semen parameter trial with filgotinib in male patients with CD or UC
MANTA-RAy	Phase 2 semen parameter trial with filgotinib in male patients with RA, PsA, or AS
Mayo Score	Mayo Score is a Disease Activity Score for ulcerative colitis. It is a composite of subscores from four categories, including stool frequency, rectal bleeding, findings of flexible proctosigmoidoscopy or colonoscopy, and physician's global assessment, with a total score ranging from 0–12
MHLW	Japanese Ministry of Health, Labor and Welfare (MHLW), in charge of Japanese market authorization of new medications
MHRA	Medicines and Healthcare products Regulatory Agency in Great Britain
Milestone	Major achievement in a project or program; in our alliances, this is usually associated with a payment
Modulation	The process by which the function of proteins is changed through the use of drugs such as small molecules, peptides, antibodies or cell therapy
Molecule collections	Chemical libraries, usually consisting of drug-like small molecules that are designed to interact with specific target classes. These collections can be screened against a target to generate initial “hits” in a drug discovery program
MTX	Methotrexate; a first-line therapy for inflammatory diseases
NDA	New Drug Application
Neutrophil	Type of immune system cell which is one of the first cell types to travel to the site of an infection in the body. Neutrophils are another type of white blood cell which fight infection by ingesting and killing microorganisms
NICE	The National Institute for Health and Care Excellence; an independent public body that provides national guidance and advice to improve health and social care in the UK
NK cells	Natural killer cells, type of white blood cell with granules of enzymes which can attack tumors or viruses
Oligonucleotide	Short DNA or RNA molecule that can be used as research tools or therapeutic drug to change protein expression
Oral dosing	Administration of medicine by the mouth, either as a solution or solid (capsule, pill) form
Osteoarthritis (OA)	The most common form of arthritis, usually occurring after middle age, marked by chronic breakdown of cartilage in the joints leading to pain, stiffness, and swelling

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Outsourcing	Contracting work to a third party
PASI	Psoriasis Area and Severity Index; an index used to express the severity of psoriasis. It combines the severity (erythema, induration and desquamation) and percentage of affected area
Pharmacokinetics (PK)	Study of what a body does to a drug; the fate of a substance delivered to a body. This includes absorption, distribution to the tissues, metabolism and excretion. These processes determine the blood concentration of the drug and its metabolite(s) as a function of time from dosing
Phase 1	First stage of clinical testing of an investigational drug designed to assess the safety and tolerability, pharmacokinetics of a drug, usually performed in a small number of healthy human volunteers
Phase 2	Second stage of clinical testing, usually performed in no more than several hundred patients, in order to determine efficacy, tolerability and the dose to use
Phase 3	Large clinical trials, usually conducted in several hundred to several thousand patients to gain a definitive understanding of the efficacy and tolerability of the candidate treatment; serves as the principal basis for regulatory approval
Phenotypic screening	Phenotypic screening is a strategy used in drug discovery to identify molecules with the ability to alter a cell’s disease characteristics. Animal models and cell-based assays are both strategies used to identify these molecules. In contrast to target-based drug discovery, phenotypic screening does not rely on knowing the identity of the specific drug target or its hypothetical role in the disease. A key benefit this approach has over target-based screening, is its capacity to capture complex biological mechanisms that are not otherwise achievable
Pivotal trials	Registrational clinical trials
Placebo	A substance having no pharmacological effect but administered as a control in testing a biologically active preparation
PRAC	Pharmacovigilance Risk Assessment Committee of the European Medicines Agency, responsible for assessing all aspects of risk management of human medicines
Preclinical	Stage of drug research development, undertaken prior to the administration of the drug to humans. Consists of in vitro and in vivo screening, pharmacokinetics, toxicology, and chemical upscaling
Preclinical candidate (PCC)	A new molecule and potential drug that meets chemical and biological criteria to begin the development process
Product candidate	Substance that has satisfied the requirements of early preclinical testing and has been selected for development, starting with formal preclinical safety evaluation followed by clinical testing for the treatment of a certain disorder in humans
Proof of Concept (POC)	A clinical trial in which first evidence for efficacy of a candidate drug is gathered. A Proof of Concept trial is usually with a small number of patients and for short duration to get a first impression of drug activity
Proof of Concept study	Phase 2 patient study in which activity as well as safety in patients is evaluated, usually for a new mechanism of action
PROTAC	Proteolysis targeting chimera, a special small molecule capable of removing unwanted proteins that play a role in disease processes
Psoriasis	A chronic skin disease which results in scaly, often itchy areas in patches
Psoriatic arthritis (PsA)	Psoriatic arthritis or PsA is an inflammatory form of arthritis, affecting up to 30% of psoriasis patients. Psoriatic arthritis can cause swelling, stiffness and pain in and around the joints, and cause nail changes and overall fatigue
Pulmonary embolism	A blockage in one of the pulmonary arteries in the lungs
QD dosing	Once-daily dosing (qd from the Latin quaque die)
R&D operations	Research and development operations; unit responsible for discovery and developing new product candidates for internal pipeline or as part of risk/reward sharing alliances with partners
Replication	The process by which DNA is copied to produce two identical DNA molecules during the process of cell division
Rheumatoid arthritis (RA)	A chronic, systemic inflammatory disease that causes joint inflammation, and usually leads to cartilage destruction, bone erosion and disability
S&M expenses	Sales and marketing expenses

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Screening	Method usually applied at the beginning of a drug discovery campaign, where a target is tested in a biochemical assay against a series of small molecules or antibodies to obtain an initial set of “hits” that show activity against the target. These hits are then further tested or optimized
SEA TURTLE	Phase 2 program with GLPG3970 in ulcerative colitis
SEC	Securities and Exchange Commission in the US
SELECTION	Phase 3 program evaluating filgotinib in UC patients. Full results were published in The Lancet in 2021
SES-CD scores	Simple endoscopic score for CD, involving review of five pre-defined bowel segments, assigning values from 0 (unaffected) to 3 (highly affected)
Short interfering RNA	A research tool that is used to silence the activity of specific genes
SIK	Salt-inducible kinase. This is the target family for the portfolio of molecules in the Toledo program
Sjögrens syndrome	Sjögren’s Syndrome is a systemic inflammatory disease which can be felt throughout the body, often resulting in chronic dryness of the eyes and mouth
Small bowel CD (SBCD)	CD causes chronic inflammation and erosion of the intestines. It can affect different regions of gastrointestinal tract including the stomach and small and large intestines. While isolated SBCD is an uncommon presentation of CD, involvement of some portion of the small bowel, particularly the ileum, is common
Statin	Statins are a class of lipid-lowering medications that reduce illness and mortality in those who are at high risk of cardiovascular disease. They are the most common cholesterol-lowering drugs. Low-density lipoprotein (LDL) carriers of cholesterol play a key role in the development of atherosclerosis and coronary heart disease via the mechanisms described by the lipid hypothesis
Systemic lupus erythematosus	An autoimmune disease, with systemic manifestations including skin rash, erosion of joints or even kidney failure
TAPINOMA	Phase 1b Proof of Concept trial with SIK2/3 inhibitor GLPG3970 in SLE. The study was terminated in October 2021
Target	Proteïn that has been shown to play a role in a disease process and that forms the basis of a therapeutic intervention or discovery of a medicine
Target discovery	Identification and validation of proteins that have been shown to play a role in a disease process
TEAE	Treatment Emergent Adverse Event, is any event not present prior to the initiation of the treatments or any event already present that worsens in either intensity or frequency following exposure to the treatments
Technology access fee	License payment made in return for access to specific technology (e.g. compound or virus collections)
Toledo	Toledo is the program name for the target family of SIK inhibitors
Topical corticosteroids	Corticosteroids which are administered through the skin using an ointment
Transcription	The process of making an RNA copy of a DNA gene sequence
Translation	The process by which a protein is synthetized from mRNA
TYK	Tyrosine kinase is an enzyme that can transfer a phosphate group from ATP to the tyrosine residues of specific proteins inside a cell. It functions as an "on" or "off" switch in many cellular functions. Tyrosine kinases belong to a larger class of enzymes known as protein kinases which also attach phosphates to other amino acids such as serine and threonine. GLPG3667 is a reversible and selective TYK2 kinase domain inhibitor
Ulcerative colitis (UC)	UC is an IBD causing chronic inflammation of the lining of the colon and rectum (unlike CD with inflammation throughout the gastrointestinal tract)
Venous thrombotic events	When a blood clot breaks loose and travels in the blood, this is called a venous thromboembolism (VTE). The abbreviation DVT/PE refers to a VTE where a deep vein thrombosis (DVT) has moved to the lungs (PE or pulmonary embolism)
Ziritaxestat	Formerly known as GLPG1690. Ziritaxestat is a novel drug candidate targeting autotaxin; all development with ziritaxestat was discontinued in February 2021

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C.     Organizational structure.

As of December 31, 2021, we had 19 subsidiaries. The following table sets out for each of our subsidiaries, the country of incorporation, and percentage ownership and voting interest held by us (directly or indirectly through subsidiaries).

Company	Country of incorporation	Percentage ownership and voting interest
Galapagos B.V.	The Netherlands	100%
Galapagos GmbH	Switzerland	100%
Galapagos, Inc.	United States	100%
Galapagos SASU	France	100%
Galapagos Biotech Ltd	United Kingdom	100%
Galapagos Real Estate Belgium BV	Belgium	100%
Xenometrix, Inc. in liquidation	United States	100%
Galapagos Biopharma Belgium BV	Belgium	100%
Galapagos Biopharma Netherlands B.V.	The Netherlands	100%
Galapagos Biopharma Spain S.L.U.	Spain	100%
Galapagos Biopharma Italy S.r.l.	Italy	100%
Galapagos Biopharma Germany GmbH	Germany	100%
Galapagos Real Estate Netherlands B.V.	The Netherlands	100%
Galapagos Biopharma Sweden AB	Sweden	100%
Galapagos Biopharma Norway AS	Norway	100%
Galapagos Biopharma Finland Oy	Finland	100%
Galapagos Biopharma Denmark ApS	Denmark	100%
Galapagos Biopharma Austria GmbH	Austria	100%
Galapagos Biopharma Ireland Ltd	Ireland	100%

In 2021 we incorporated Biopharma subsidiaries in Sweden, Norway, Finland, Denmark, Austria and Ireland. Our dormant Swiss subsidiary BioFocus DPI AG was deconsolidated in 2020 and on March 25, 2021 it was deregistered from the Swiss commercial register.

D.     Property, plants and equipment.

We have our principal executive, operational offices and laboratory space located in Mechelen, Belgium. Our main facilities owned or leased as of December 31, 2021 are set forth in the following table:

Facility location	Use	Approx. size (m2)	Lease expiry
Mechelen, Belgium (leased)	Headquarters, R&D, Operations	14,231	December 31, 2025(1)
Romainville, France (leased)	R&D	6,753	March 25, 2027
Leiden, the Netherlands (leased)	R&D	3,000	June 2022

In addition to the facilities listed in the table above, we also lease office space in Basel (Switzerland), Madrid (Spain,) and Boston (United States). In addition, we use short-term co-working spaces in London (UK), Paris (France), Milan (Italy), Copenhagen (Denmark), Stockholm (Sweden), Vienna (Austria), and Munich (Germany) to temporarily house our local commercial and medical affairs teams while we look for permanent locations in the aforementioned countries.

We are currently building new facilities with offices and laboratory space in Leiden, the Netherlands and expect to move to the new building in the second or third quarter of 2022. We estimate that the total expenditures for the construction project in Leiden will amount to approximately €74 million.

In Belgium, we purchased land in Mechelen at the end of 2019 on wich to construct our new building and we are currently evaluating various building options. This exercise takes into account the impact of the Covid-19 pandemic on

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our future way-of-working and the corresponding need for office and laboratory space. Our current expenditures amount to approximately €23 million (including the purchase of the land). Our estimated total expenditures will depend on the outcome of the ongoing evaluation of various building options.

Environmental issues

For more information on environmental issues that may affect our utilization of our facilities, please see the section of this annual report titled “Item 3.D.—Risk factors—Risks related to our organization, structure and operation—.” We could be subject to liabilities under environmental, health and safety laws or regulations, or fines, penalties or other sanctions, if we fail to comply with such laws or regulations or otherwise incur costs that could have a material adverse effect on the success of our business.

Item 4A  Unresolved staff comments

Not applicable.

Item 5     Operating and financial review and prospects

Overview

We are an integrated biopharmaceutical company active in the discovery, development, and commercialization of medicines with novel modes of action, several of which are currently in clinical development in multiple diseases with high unmet medical need. Our highly flexible discovery platform is applicable across many therapeutic areas.

Having achieved approval in the European Union, Great Britain, and Japan for our first ever medicine in RA, and approval in the European Union, and Great Britain in UC, we remain highly committed to progressing our pipeline of drug candidates to address unmet medical needs and improve the lives of millions. We refocused our product portfolio by critically examining the risk profile and breadth of the pipeline.

Our differentiated clinical pipeline includes: 1) preferential JAK1 inhibitor filgotinib, which is approved for the treatment of RA in the European Union, Great Britain, and Japan, approved for the treatment of UC in the European Union and Great Britain and submitted for approval in UC in Japan, and currently in a Phase 3 trial in CD; 2) GLPG3667, a TYK2 inhibitor which showed activity in a Phase 1b study in Pso in 2021; 3) GLPG4399, a SIK3 inhibitor currently in Phase 1; 4) GLPG4716, a chitinase inhibitor in-licensed from OncoArendi, for which we anticipate to start a Phase 2 trial in lung fibrosis; and 5) GLPG2737, a CFTR-inhibitor, currently in Phase 2 in ADPKD.

In both our inflammation and fibrosis portfolios, we have multiple novel mechanism of action candidates in early research. These programs are almost exclusively based on inhibiting targets which were identified using our target discovery platform. Please see “—Glossary of terms” for terms used in this section.

We devote substantially all of our resources to our drug discovery efforts from target discovery through clinical development, and to our commercialization efforts for filgotinib in Europe. To date, we funded our operations through public and private placements of equity securities, upfront payments, milestone payments, royalties received from pharmaceutical partners under our collaboration and alliance agreements, payments received from wholesalers and hospitals for Jyseleca sales, payments under our fee-for-service contracts, funding from governmental bodies, interest income as well as the net proceeds from the sale of our service division in 2014 and of our fee-for-service division in 2021. From January 1, 2019 until December 31, 2021, we raised net proceeds from the share subscription by Gilead in August 2019 and the exercise of warrant A by Gilead in November 2019. From January 1, 2019 until December 31, 2021 we also received €3,866.9 million in payments through our collaboration and alliance agreements. These are items which have a significant impact upon the profitability or cash flow of our business in each year in which they are received and earned. Fee-for-service payments and payments from governmental bodies contributed €23.7 million and €93.1 million, respectively. Over the same period, we also received €6.7 million in net interest payments. We realized €28.7 million of net proceeds from the disposal of Fidelta. For the year end December 31, 2021, we received €13.1 million from customers for Jyseleca sales in Europe. As of December 31, 2021, we had cash and cash equivalents of €2,233.4 million and current financial investments of €2,469.8 million.

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For the year ended December 31, 2019, we incurred a net income of €149.8 million. For the year ended December 31, 2020, we incurred a net loss of €305.4 million. For the year ended December 31, 2021, we incurred a net loss of €103.2 million. We expect to continue incurring significant research, development, and other expenses related to our ongoing operations, and to continue incurring operating losses for the foreseeable future.

Collaboration and alliance agreements

Our main collaborations and alliance agreements are summarized below. All U.S. dollar payment amounts which have been received in cash regarding our Gilead and AbbVie collaborations in this Item 5 are converted into euros as per historical exchange rates (i.e., the spot rate at the moment of the transaction).

Option, License and Collaboration Agreement with Gilead

On July 14, 2019 we entered into a 10-year global research and development collaboration with Gilead. Through this agreement, Gilead gained exclusive access to our innovative portfolio of compounds, including molecules currently in clinical trials, our preclinical programs and a proven drug discovery platform.

At inception of this collaboration in 2019 we received an upfront payment of €3,569.8 million ($3.95 billion) and a €960.1 million ($1.1 billion) equity investment from Gilead.

On the closing date of the transaction (August 23, 2019) we concluded that the upfront payment implicitly included a premium for the future issuance of warrant A and initial and subsequent warrant B. The expected value of the warrants to be issued is treated as a contract liability ("warrant issuance liability") and reducing the transaction price until approval date of the issuance of the underlying warrant. As from approval date, the allocation of the upfront payment to the respective warrant becomes fixed and future changes in the fair value of the respective warrant are recognized in profit or loss. As such, the part of the upfront payment allocated to the warrant A and initial warrant B reflects the fair value of these financial liabilities at the warrant approval date (October 22, 2019). The value allocated to the subsequent warrant B reflects the fair value of the underlying liability at December 31, 2019, 2020 and 2021 since this warrant is not yet approved for issuance. It is part of our deferred income in our statement of financial position.

On November 6, 2019 Gilead exercised warrant A, which resulted in an additional equity investment of €368.0 million.

At inception of this collaboration we identified the following three performance obligations: (i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 on the global development activities of filgotinib, as a result of the revised license and collaboration agreement. As part of the collaboration, Gilead also received option rights for GLPG1972, a Phase 2b candidate for osteoarthritis, in the United States. We further refer to the Critical accounting judgments and key sources of estimation uncertainty section explaining critical judgments in applying accounting policies.

From the transaction price received from Gilead, $738.0 million (€667.0 million) was allocated to the license on GLPG1690, $710.0 million (€641.7 million) was allocated to the increased cost share from 20/80 to 50/50 on the global development activities of filgotinib, and on December 31, 2019, $2,528.1 million (€2,284.7 million) was allocated to the exclusive access rights to our drug discovery platform. The amount allocated to the drug discovery platform also considered the additional effects on the transaction price from derivative financial intruments triggered by the share subscription agreement and the warrants granted to Gilead. We refer to the note 6 of this annual report tittled “Total net revenues” for the allocation of the transaction price received from Gilead.

Gilead also proposed two individuals for our board of directors, which were nominated during the special general meeting of shareholders of October 22, 2019.

Terms of the collaboration

We will fund and lead all discovery and development autonomously until the end of Phase 2. After the completion of a qualifying Phase 2 study (or, in certain circumstances, the first Phase 3 study), Gilead will have the option to acquire

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a license to the compound outside Europe. If the option is exercised, we and Gilead will co-develop the compound and share costs equally. Gilead will maintain option rights to our programs through the 10-year term of the collaboration. This term can be extended for up to an additional three years thereafter for those programs, if any, that have entered clinical development prior to the end of the collaboration term. In addition, a final term extension can be granted in certain circumstances. Development of GLPG1690 was discontinued in February 2021.

For GLPG1972, after the completion of the ongoing Phase 2b study in osteoarthritis, Gilead had the option to pay a $250 million fee to license the compound in the United States. In November 2020, Gilead declined to exercise its option to GLPG1972.

For all other programs resulting from the collaboration, Gilead will make a $150 million opt-in payment per program and will owe no subsequent milestones. We will receive tiered royalties ranging from 20%-24% on net sales of all our products licensed by Gilead in all countries outside Europe as part of the agreement.The collaboration is further described in "Item 4 – Collaborations – Option, License and Collaboration Agreement with Gilead”.

Filgotinib collaboration

Under the agreement, as revised in 2019, we and Gilead would co-commercialize filgotinib in France, Germany, Italy, Spain and the United Kingdom and retain the 50/50 profit share in these countries that was part of the original filgotinib license agreement. The companies would also share future global development costs for filgotinib equally until a predetermined level, in lieu of the 80/20 cost split provided by the original agreement.

In December 2020, we agreed under a binding term sheet to amend this agreement again, as a result of which we assumed all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. Through a phased transition during which most of the activities were transferred to us by December 31, 2021, including becoming the marketing authorization holder for Jyseleca for the treatment of RA in the European economic area and Great Britain, and that we intend to complete by December 31, 2022, we have the sole right to commercialize filgotinib in Europe. Until December 31, 2021, we continued to share equally with Gilead in the net profit and net losses in each of the Netherlands, Belgium, Luxembourg, France, Germany, Italy, Spain and UK. All commercial economics on filgotinib in Europe transferred to us as of January 1, 2022, subject to payment of tiered royalties of 8% to 15% of net sales in Europe to Gilead, starting in 2024. Gilead will retain commercial rights and remain marketing authorization holder for filgotinib outside of Europe, including in Japan.

Since January 1, 2021, we bear the future development costs for certain studies, in lieu of the equal cost split contemplated by the previous agreement. These studies include the DARWIN3, FINCH4, FILOSOPHY, and Phase 4 studies and registries in RA, MANTA and MANTA-RAy, the PENGUIN1 and 2 and EQUATOR2 studies in PsA, the SEALION1 and 2 studies in AS, the HUMBOLDT study in uveitis in addition to other clinical and non-clinical expenses supporting these studies and support for any investigator sponsored trials in non-IBD conditions and non-clinical costs on all current trials. The existing 50/50 global development cost sharing arrangement continues for the following studies: SELECTION and its long-term extension study (LTE) in UC, DIVERSITY and its LTE, DIVERGENCE 1 and 2 and their LTEs and support for Phase 4 studies and registries in Crohn’s disease, pediatric studies and their LTEs in RA, UC and Crohn’s disease, and support for investigator sponsored trials in IBD.

In September 2021, we and Gilead agreed to transfer the sponsorship of the DIVERSITY study and its LTE study from Gilead to us. The transfer is intended to be completed by June 30, 2022. From April 1, 2022, we will also be solely responsible for all development costs for the DIVERSITY study and its LTE study. If the European Medicines Agency grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY study, then royalties payable by us to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6% to 10.5% of net sales in Europe. 

In March 2022, Gilead and we agreed to transfer the sponsorship of and the operational responsibility for the MANTA study and its long-term extension to Galapagos. The transfer is intended to be completed by December 31, 2022.

In connection with our entry into the initial collaboration agreement with Gilead on filgotinib, we received in January 2016 an upfront payment of $725 million consisting of a one-time, non-refundable, non-creditable license fee in the amount of $300 million and a $425 million equity investment. In November 2016, Gilead initiated a Phase 3 trial in

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CD, for which we received a $50.0 million (€45.7 million) payment. In December 2016, Gilead initiated a Phase 2 trial in UC for which we received a $10.0 million (€9.4 million) payment. In April 2017, Galapagos initiated a Phase 2 trial in psoriatic arthritis as a new indication, for which we received a $10.0 million (€9.4 million) payment. In May 2018, Gilead initiated a Phase 3 trial in UC for which we received $15.0 million (€12.4 million).

In connection with the revised agreement in July 2019, $710 million (€641.7 million) of upfront consideration received from Gilead was allocated to the extended cost sharing for development costs of filgotinib.

In December 2019, Gilead initiated a Phase 3 trial in psoriatic arthritis for which we received $10.0 million (€9.1 million). In December 2019, Gilead filed an NDA for filgotinib in the U.S. for which we received a $20 million payment in January 2020. In September 2020 filgotinib was approved by both the European and the Japanese authorities, for which we received a $105.0 million (€90.2 million) payment in October 2020.

In connection with the December 2020 binding term sheet that we entered into with Gilead, pursuant to which we agreed to amend the existing arrangement for the commercialization and development of filgotinib, Gilead has agreed to irrevocably pay Galapagos €160 million, subject to certain adjustments for higher than budgeted development costs. Gilead paid €35 million in January 2021, €75 million in April 2021 and will pay an additional €50 million in 2022. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. However, we will remain eligible to receive tiered royalty percentages ranging from 20% to 30% on Gilead's global net sales of filgotinib outside of Europe and future development and regulatory milestone-based payments of up to $295 million and sales-based milestone payments of up to $600 million.  We received €16.2 million ($19.5 million) for royalties on filgotinib for the year ended December 31, 2020 from Gilead. We recognized €3.8 million of royalties on filgotinib from Gilead for the year ended December 31, 2021, of which €1.9 million was paid in 2021.

Under the terms of the agreement of September 2021, and upon completion of the transfer of the DIVERSITY clinical study and its LTE study, no later than June 30, 2022, Gilead will make a one-time payment of $15 million to us.

The collaboration is further described in “Item 4 – Collaborations -- Exclusive collaboration agreement with Gilead for filgotinib”.

Terms of the equity investment

As part of the research and development collaboration Gilead also entered into a share subscription agreement with us. Gilead’s equity investment consisted of a subscription for new Galapagos shares at a price of €140.59 per share, representing at July 14, 2019 a 20% premium to Galapagos’ 30-day, volume-weighted average price. This equity subscription took place at closing of the transaction, on August 23, 2019 and increased Gilead‘s stake in Galapagos from approximately 12.3% to 22.04% of the then issued and outstanding shares in Galapagos.

In addition, the extraordinary general meeting of shareholders of October 22, 2019 approved the issuance of warrant A and initial warrant B allowing Gilead to further increase its ownership of Galapagos to up to 29.9% of the company’s issued and outstanding shares. The initial warrant B has a term of five years and an exercise price per share equal to the greater of (i) 120% multiplied by the arithmetic mean of the 30-day daily volume weighted average trading price of Galapagos’ shares as traded on Euronext Brussels and Euronext Amsterdam, and (ii) EUR 140.59.

Subsequent warrant B is still subject to approval by an extraordinary general meeting of shareholders. This extraordinary general meeting of shareholders shall take place between 57 and 59 months after the closing of the subscription agreement (August 23, 2019) and this warrant will have substantially similar terms, including as to exercise price, to the initial warrant B. The agreement also includes a 10-year standstill restricting Gilead’s ability to propose a business combination with or acquisition of Galapagos or increase its stake in Galapagos beyond 29.9% of the company’s issued and outstanding shares, subject to limited exceptions.

On November 6, 2019 Gilead exercised warrant A and increased its ownership in Galapagos to 25.10% of the then outstanding shares. Warrant A expired on October 22, 2020. Gilead’s ownership at December 31, 2021 was 25.49%.

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Product development, license and commercialization agreement with Servier

In 2010, we and Servier entered into an agreement to discover and develop compounds in the field of osteoarthritis. Under this agreement, we and Servier engaged in a collaborative effort pursuant to which we discovered and developed GLPG1972 through to the end of Phase 1 clinical trials. In July 2017, Servier exercised its option to obtain an exclusive license to develop and commercialize GLPG1972 in all countries outside the U.S. whereas we retained full rights to develop and commercialize GLPG1972 in the U.S.

On May 8, 2018, we and Servier amended and restated our product development, license and commercialization agreement, pursuant to which GLPG1972 was developed in the field of OA and potentially other indications.

In December 2020, Servier decided to terminate the agreement. Such termination became effective in March 2021. On August 30, 2021, we and Servier formalized the termination of the agreement by executing a termination agreement.

As a result of such termination, rights to the GLPG1972 were returned to us, subject to payment of a regulatory milestone, a commercial milestone and a mid single digit sales-based royalty upon successful commercialization of GLPG1972 in countries outside the U.S. 

Under the terms of the amended and restated agreement, we and Servier were jointly responsible for the costs relating to the ongoing global Phase 2 clinical trial known as ROCCELLA in knee OA patients, with Galapagos bearing the costs for the U.S., Servier bearing the costs for all other countries, and all costs that are common to both territories being split on a 50-50 basis.

We were eligible to receive development, regulatory and other milestone payments up to €136 million plus royalties in the mid single digits upon commercialization outside the U.S. As of the date of this annual report, we have received an upfront payment of €7.0 million, €6.0 million as option exercise payment and a total of €38.0 million in milestone payments under the agreement.

Exclusive license agreement with MorphoSys AG and Novartis Pharma AG

In July 2018, we entered into an exclusive license agreement with MorphoSys and Novartis for MOR106.

In addition to the funding of the MOR106 programs by Novartis during the term of the agreement, we received jointly with MorphoSys an upfront cash payment of €95.0 million.

On October 28, 2019, we announced the end of the clinical development program of MOR106 in AtD. On December 17, 2019, Novartis sent us a termination notice, informing us of its decision to terminate the agreement in its entirety. This termination became effective in 2020. Upon such termination, the collaboration between Galapagos and MorphoSys continued to apply.

On November 5, 2021, we and MorphoSys ended our collaboration by executing a transition agreement. Pursuant to this agreement, MorphoSys has the right to continue research and development activities with MOR106 in all indications. Galapagos assigned and transferred all of its patent rights and know-how to MorphoSys, and Galapagos is eligible to single-digit royalties upon worldwide successful commercialization.

Amended AbbVie collaboration agreement for CF

On October 24, 2018 we and AbbVie amended and restated the CF collaboration agreement for a second time to restructure the entire collaboration. A detailed summary of this collaboration agreement is set forth in the section of this annual report titled “Item 4.B.—Business Overview—Collaborations— Second Amended and Restated Collaboration with AbbVie.”

Upon execution of the initial collaboration agreement, we received a one-time non-refundable, non-creditable upfront payment of $45.0 million (€34.0 million). Upon execution of the second amended and restated collaboration agreement, we received an additional one-time non-refundable, non-creditable upfront payment of $45.0 million (€38.9 million). As of the date of this annual report, we have also received a total of $112.5 million (€99.3 million) in milestone payments under the agreement. All payments by AbbVie to us are made in U.S. dollars.

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Under the second amended and restated agreement, we are still eligible to receive up to $175 million in total additional developmental, regulatory, and sales-based milestones. In addition, we will be eligible to receive tiered royalty percentages ranging from single digit to low teens on net sales of licensed products payable on a product-by-product basis in the event AbbVie receives regulatory approval and realizes commercial sales in CF. AbbVie further agrees to pay us tiered single digit royalties of global commercial sales, if approved, from these candidates achieved in indications outside of CF.

We retain exclusive global commercial rights to develop GLPG2737, a candidate C2 corrector, in all indications outside of CF. AbbVie is eligible to receive up to $20 million upon achievement of a late stage development milestone, and tiered single digit royalties on future global commercial sales, if approved, in indications outside CF. We further retain exclusive global commercial rights to develop GLPG1837, a candidate potentiator, in all indications outside of CF. AbbVie is eligible for a low single digit royalty on future global commercial sales, if approved, in indications outside CF.

Distribution agreement for Jyseleca with Sobi

In October 2021, we signed an agreement with Sobi regarding the distribution of Jyseleca. Sobi will distribute the medicine in Central and Eastern Europe, Greece, Portugal, and the Baltic countries.

Financial operations overview

Product net sales

Revenue on the sale of Jyseleca is recorded as “Product net sales” in our consolidated income statement.

Product net sales is the net amount of revenue recognized resulting from transferring control over our products to our customer (for example wholesalers and hospitals). Product sales revenue is recognized at a point in time when control of the goods has transferred to the customer. This is generally when the goods are delivered to the customer depending on the specific incoterms in the contract with a customer.

The amount of revenue recognized is the amount allocated to the satisfied performance obligation taking into account variable consideration. The estimated amount of variable consideration is included in the transaction price only to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration that is included in the transaction price is primarily composed of rebates, discounts, cash discounts and chargebacks granted to various customers that are part of commercial and governmental contractual arrangements or other reimbursement programs. Shelf stock adjustments are granted to some of our customers to cover the inventory held by them at the time of a price decrease becomes effective. A liability is recognized for expected rebates, cash discounts, chargebacks or other reimbursements payable directly or indirectly to customers in relation to sales made until the end of the reporting period.

The amount of variable consideration is estimated using several elements such as third-party market data, product pricing, the specific terms in the individual agreements, estimated inventory levels and the shelf life of our product. If actual results differ, these estimates will be adjusted.

Net sales are presented net of value added tax and other sales related taxes.

Collaboration Revenue

Collaboration revenues to date have consisted principally of milestones, license fees, non-refundable upfront fees and royalties received in connection with collaboration and license agreements. Until 2020 we also generated revenue from our fee-for-service activities.

The revenue recognition policy can be summarized as follows:

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We recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. To determine revenue recognition for agreements that we determine are within the scope of IFRS 15, we perform the following five steps:

(i) identify the contract

In our current agreements with customers we are mainly transferring licenses on our IP and in some cases this is combined with access rights and/or providing research and development services and/or cost sharing mechanisms. In some cases our collaborations also include an equity subscription component. If this is the case, we analyze if the criteria to combine contracts, as set out by IFRS 15, are met.

(ii) identify the performance obligations in the contract

Depending on the type of the agreement, there can be one or more distinct performance obligations under IFRS 15. This is based on an assessment of whether the promises in an agreement are capable of being distinct and are distinct from the other promises to transfer goods and/or services in the context of the contract. For some of our agreements we combine the transfer of the license with the performance of research and development activities because we consider that the license is not capable of being distinct and is not distinct in the context of the contract.

(iii) determine the transaction price

Collaboration and license agreements with our commercial partners for research and development activities generally include non-refundable upfront fees; milestone payments, the receipt of which is dependent upon the achievement of certain clinical, regulatory or commercial milestones; license fees, royalties on sales and sometimes reimbursement income or profits sharing arrangements.

a/ License fees or upfront payments

If the license to our intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, we recognize revenues from non-refundable upfront fees allocated to the license at the point in time the license is transferred to the customer and the customer has the right to use the license.

For licenses that are bundled with other promises, we utilize judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. If over time, revenue is then recognized based on a pattern that best reflects the transfer of control of the service to the customer.

b/ Milestone payments other than sales based milestones

A milestone payment is only included in the transaction price to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. We estimate the amount to be included in the transaction price using the most likely amount method, where milestone payments are included in the transaction price upon achievement of the milestone event. The transaction price is then allocated to each performance obligation on a stand-alone selling price basis, for which we recognize revenue as or when the performance obligations under the contract are satisfied. At the end of each subsequent reporting period, we re-evaluate the probability of achievement of such milestones and any related constraint, and, if necessary, adjust our estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenue and earnings in the period of adjustment.

c/ Reimbursement income for R&D services

Collaboration and license agreements may include reimbursement or cost sharing for research and development services: such as outsourcing costs and payment for full-time equivalents at contractual rates. R&D services are performed and satisfied over time given that the customer simultaneously receives and consumes the benefits provided by us.

Such costs reimbursements received are recognized in revenues when costs are incurred and agreed by the parties when we are acting as a principal in the scope of our stake of the R&D activities. If the later condition is not fulfilled, costs reimbursements are accounted for as a decrease of the related expenses.

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d/ Sales based milestone payments and royalties

License and collaboration agreements include sales-based royalties, including commercial milestone payments based on the level of sales, and the license has been deemed to be the predominant item to which the royalties relate. Related revenue is recognized as the subsequent underlying sales occur.

(iv) allocate the transaction price to the performance obligations in the contract

We allocate the transaction price to each performance obligation identified in the contract based upon the stand-alone selling price. The stand-alone selling price of each performance obligation is estimated by using one of the following methods: adjusted market assessment approach, the expected cost plus a margin approach or the residual approach. If management assesses that there is only one single performance obligation, the entire transaction price would be allocated to this performance obligation.

(v) recognize revenue when (or as) the entity satisfies a performance obligation

Revenue is recognised when our customer obtains control of the goods and/or services foreseen in the contracts. The control can be transferred over time or at a point in time – which result in recognition of revenue over time and at a point in time.

In case of revenue recognition over time, we use either an input model that considers estimates of the percentage of total research and development costs that are completed each period compared to the total estimated costs (percentage of completion method) or we apply an output method to measure the progress of the satisfaction of the underlying performance obligation. In other cases, depending on specific circumstances, we recognize revenue on a straight-line basis over the estimated term of the performance obligation.

Cost of sales

Our cost of sales includes primarily the purchase cost of the goods sold and transportation costs.

R&D expenditure

Expenses on R&D activities are recognized as an expense in the period in which the expense is incurred.

Our R&D expenditure consists of costs associated with our R&D activities such as:

● personnel costs associated with employing our team of R&D staff, including salaries, social security costs, and share-based compensation expenses;

● disposables and lab consumables used in the conduct of our in-house research programs;

● payments for research work conducted by sub-contractors and sponsorship of work by our network of academic collaborative research scientists;

● subcontracting costs paid to contracted research organizations, or CROs, for our preclinical studies or clinical trials, as well as costs associated with safety studies;

● Professional fees to support our R&D activities;

● costs paid to our collaboration partners and reimbursements received from our collaboration partners in the scope of the cost sharing agreements of our collaborations

● premises costs associated with our laboratory and office space to accommodate our teams;

● depreciation and impairment of fixed assets used to develop our product candidates; and

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● other operating expenses, namely software and licenses, maintenance costs for equipment, travel costs, and office expenses.

Our R&D expenses are expected to remain stable as we advance our filgotinib program, offset by the winding down of the GLPG1690 (ziritaxestat) program, and reduced spend on our Toledo program and other programs.

Since 2019, we cumulatively have spent €1,435.5 million on R&D activities which can be split as follows between the key programs:

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)						Cumulative
Filgotinib program	€	(171,204)	€	(126,879)	€	(100,032)	€	(398,115)	28%
Ziritaxestat program		(26,725)		(55,902)		(75,951)		(158,578)	11%
OA program on GLPG1972		(2,285)		(22,966)		(19,958)		(45,209)	3%
Toledo program		(91,957)		(87,107)		(47,204)		(226,268)	16%
TYK2 program on GLPG3667		(27,141)		(20,199)		(10,728)		(58,068)	4%
AtD program on MOR106		(112)		(7,618)		(24,051)		(31,780)	2%
Other programs		(172,284)		(202,996)		(142,166)		(517,445)	36%
Total R&D expenses	€	(491,707)	€	(523,667)	€	(420,090)	€	(1,435,464)	100%

Other programs comprise expenditure for other projects in research phase and other early stage development programs in inflammation, fibrosis and other indications.

The decrease in our R&D expenditure was primarily due to the winding down of the programs with ziritaxestat (IPF), MOR106 (atopic dermatitis), and GLPG1972 (OA) and to reduced spend on our other programs. This was partly offset by cost increases for our filgotinib, Toledo (SIKi) and TYK2 programs, on a yearly comparison basis.

Sales and marketing expenses

Sales and marketing expenses include costs associated with managing our commercial activities, our commercial launch and co-promotion activities with Gilead for filgotinib in Europe and primarily in the Benelux, France, Italy, Spain, United Kingdom and Germany.

Expenses on S&M activities are recognized as an expense in the period in which the expense is incurred.

Our sales and marketing expenses consists of costs associated with our commercial activities such as:

● personnel costs associated with employing our team of commercial and supply chain staff, including salaries, social security costs, and share-based compensation expenses;

● subcontracting costs related to contracted agencies for marketing campaigns and materials, business analytics, market research and promotional expenses.

● professional fees to support our commercial activities;

● costs charged to us by Gilead or recharged by us to Gilead in the scope of our co-commercialization cost sharing agreement for filgotinib in Belgium, the Netherlands, Luxembourg, France, Italy, Spain, Germany and Great Britain.

● depreciation of fixed assets used by our commercial staff.

● other operating expenses, namely press and communication fees, operational taxes, costs of samples, travel and accommodation costs, and office expenses.

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We expect our sales and marketing expenses to increase as of January 1, 2022, as the 50/50 co-commercialization cost sharing agreement with Gilead will come to its end and we will therefore bear all commercialization costs for Europe.

General and administrative expenses

General and administrative expenses consist primarily of salaries and benefits related to our executive, finance, human resources, business development, legal, intellectual property, and information technology support functions, as well as depreciation and impairment costs of fixed assets. Professional fees reported under general and administrative expenses mainly include legal fees, accounting fees, audit fees, and fees for taxation advisory and other consultancy costs. Other general and administrative operating expenses primarily encompass software and license costs, equipment maintenance and leasing costs, consultancy costs, insurance costs, Belgian tax on securities accounts, office expenses, and travel costs.

Grants and R&D incentives

We benefit from various grants and R&D incentives from certain governmental agencies. These grants and R&D incentives generally aim to partly reimburse approved expenditures incurred in our R&D efforts and are credited to the statement of operations, under other operating income, when the relevant expenditure has been incurred and there is reasonable assurance that the grant or R&D incentive is receivable. The main grants and R&D incentives are as follows:

● Companies in Belgium are eligible to receive R&D incentives linked to R&D investments (equaling 25% of 13.5% of the investment value in 2021). This R&D tax credit results in a cash inflow to us from the tax authorities five years after the investment was made and capitalized in our standalone financial statements under Belgian GAAP for the portion that has not been used to offset the payment of corporate tax or is paid to us for the portion that remains unused. We also received a grant from the National Institute for Health and Disability Insurance. This grant aims to incentivize innovative Belgian biotech companies who are performing research and development activities in order to identify new medicines. Finally, we also benefit from certain rebates on payroll withholding taxes for scientific personnel.

● In France, we benefit from R&D incentives from the French Government for R&D activities whereby 30% of qualifying R&D expenses can be recuperated. This research tax credit (crédit d’impôt recherche) results in a cash inflow to us from the tax authorities after three years, i.e., it is used to offset the payment of corporate tax or is paid to us for the portion that remains unused. Qualifying expenditures largely comprise employment costs for research staff, consumables, and certain overhead costs as well as capped outsourcing costs incurred as part of R&D projects.

Fair Value Re-measurement of Share Subscription Agreement and warrants

We reported a total of €181.6 million of non-cash fair value losses from different fair value re-measurements in the second half of 2019.

In 2019 one component related to the re-measurement of a derivative financial instrument triggered by the share subscription agreement with Gilead between signing (July 14, 2019) and closing (August 23, 2019) of the agreement. This fair value loss of €142.4 million reflects the increase in the Galapagos share price between signing and closing of the Gilead agreement. On August 23, 2019, the fair value of the financial liability amounting to €56.7 million was derecognized through the share premium account in equity.

Another part of these fair value losses in 2019 was explained by the re-measurement of the Gilead warrant A and initial warrant B. Upon approval of the issuance of warrant A and initial warrant B by the extraordinary general meeting of shareholders of October 22, 2019 we recognized a financial liability for both warrants.

Between the approval date and the exercise of warrant A by Gilead on November 6, 2019 our share price increased significantly, resulting in a fair value loss of €35.6 million recognized in profit or loss. On November 6, 2019 the related financial liability, amounting to €79.0 million was derecognized through the share premium account in equity.

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As initial warrant B is not yet exercised by Gilead per December 31, 2021, we re-measured the financial liability relating to this warrant on December 31, 2019, on December 31, 2020 and on December 31, 2021 and recognized the resulting change in fair value between the approval and year-end 2019, between year-end 2019 and year-end 2020 and between year-end 2020 and year-end 2021 in profit or loss. The recognized fair value loss of €3.7 million in 2019 and the recognized fair value gain of €3.0 million in 2020 and of €3.0 million in 2021 are mainly the result of the change in the implied volatility of our share price and the evolution of our share price itself for these three periods. On December 31, 2021, the fair value of the financial liability related to the initial warrant B amounts to €0.2 million.

The financial liability will be re-measured at fair value at each reporting period.

Other financial expense and financial income

Interest expense consists primarily of interest expense incurred on certain of our term deposits, treasury bills and leases.

Interest income consists primarily of interest earned by investing our cash reserves in interest-bearing deposit accounts, notice accounts and in current financial investments.

Fair value gains and losses on financial assets held at fair value through profit or loss consist of the effect of re-measurement of financial assets classified as equity investments held at fair value through profit or loss, which qualify for level 1 fair value measurement based upon the closing price of such securities at each reporting date, and of an impairment loss on a participation in a non-listed company. Any gain or loss realized upon the sale of equity instruments is reported in other financial expense or in other financial income.

Fair value gains and losses on current financial investments consist of the interest on treasury bills which have not yet expired, the effect of the re-measurement at fair value of our money market funds, including as from 2021 the exchange differences on the current financial investments. These money market funds qualify for level 1 fair value measurement based upon the closing price of the investment at each reporting date.

Other financial expenses also include the costs linked the accounting for a financing component under IFRS15, embedded in the upfront consideration received from Gilead in connection with the revised agreement for filgotinib. This represents the time value of money on the estimated revenue recognition period.

Foreign currency exchange gain and loss comprises realized and unrealized effect from currency exchange rate fluctuation on our balance sheet positions denominated in foreign currency. For the year ended December 31, 2021, currency exchange gain was primarily due to currency exchange rate differences on our cash held in foreign currency. On December 31, 2021 our cash and cash equivalents and current financial investments included $942.5 million held in U.S.dollars, which could generate foreign currency exchange gain or loss in our financial results in accordance with the fluctuation of the EUR/U.S.dollar exchange rate as our functional currency is EUR.

Taxation

With the exception of the year ended December 31, 2019, we have a history of losses. We forecast to continue incurring losses as we continue to invest in our clinical and preclinical development programs and our discovery platform.

Consequently, we do not have any deferred tax asset on the balance sheet as at December 31, 2021, except for subsidiaries working on a cost plus basis for which deferred tax assets were set up for an amount of €4.0 million as of December 31, 2021. As a company active in research and development in Belgium, we also expect to benefit from the “innovation income deduction”, or IID in Belgium. The innovation income deduction regime allows net profits attributable to revenue from among others patented products (or products for which the patent application is pending) to be taxed at a lower effective tax rate than other revenues. The effective tax rate can thus be reduced up to 3.75%.

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Operating segments

We are currently operating as a single operating segment. Prior to the disposal of Fidelta we had two reportable segments, R&D and fee-for-service business. Due to the disposal of Fidelta (our fee-for-service segment) on January 4, 2021, we reported this segment as discontinued operations in 2020 and 2021.

Financial information related to our operational segment and geographic information is contained in “Note 5—Segment information” in our consolidated financial statements appended to this annual report.

Risks

For further information regarding governmental economic, fiscal, monetary or political policies or factors that have materially affected, or could materially affect, directly or indirectly, our operations, please see the section of this annual report titled “Item 3.D.—Risk Factors.”

Critical accounting judgments and key sources of estimation uncertainty

We refer to “Note 4-Critical accounting judgments and key sources of estimation uncertainty” in our consolidated financial statements appended to this annual report.

New standards and interpretations applicable for the annual period beginning on January 1, 2020 and for the annual period beginning on January 1, 2021

We refer to “Note 3-Significant accounting policies” in our consolidated financial statements appended to this annual report.

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A. Operating results

Comparison of years ended December 31, 2021 and 2020

The following table summarizes the results of our operations for the years ended December 31, 2021 and 2020, together with the changes to those items.

	Year ended December 31,
	2021		2020		% Change
		(Euro, in thousands, except per share data)
Product net sales	€	14,753	€	2
Collaboration revenues		470,093		478,051	(2)%
Total net revenues		484,846		478,053	1%
Cost of sales		(1,629)		—
Research and development expenses		(491,707)		(523,667)	(6)%
Sales and marketing expenses		(69,956)		(66,468)	5%
General and administrative expenses		(140,899)		(118,757)	19%
Other operating income		53,749		52,207	3%
Operating loss		(165,596)		(178,632)	(7)%
Fair value re-measurement of warrants		2,960		3,034	(2)%
Other financial income		70,548		18,667	278%
Other financial expenses		(30,911)		(152,844)	(80)%
Loss before tax		(122,999)		(309,775)	(60)%
Income taxes		(2,423)		(1,226)	98%
Net loss from continuing operations		(125,422)		(311,001)	(60)%
Net income from discontinued operations, net of tax		22,191		5,565	299%
Net loss	€	(103,231)		(305,436)	(66)%
Net loss attributable to:
Owners of the parent		(103,231)		(305,436)
Basic and diluted loss per share	€	(1.58)	€	(4.69)
Basic and diluted loss per share from continuing operations	€	(1.91)	€	(4.78)

Product net sales

We reported net sales of Jyseleca for the year ended December 31, 2021 of €14.8 million, which reflects the net sales booked by Galapagos after the transition from Gilead. Our counterparties for the sales of Jyseleca during 2021 were hospitals and wholesalers located in Belgium, the Netherlands, France, Italy, Spain and Germany. Net sales exclusively consist of sales of Jyseleca.

Collaboration revenues

	Year ended December 31,
	2021		2020		% Change
		(Euro, in thousands)
Recognition of non-refundable upfront payments and license fees	€	433,884	€	411,417	5%
Milestone payments		32,408		46,261	(30)%
Reimbursement income		—		4,073	(100)%
Royalties		3,801		16,300	(77)%
Total collaboration revenues	€	470,093	€	478,051	(2)%

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A summary of the accounting treatment of the Gilead collaborations is given below:

Collaborations with Gilead

On July 14, 2019 we and Gilead announced that we had entered into a 10-year global research and development collaboration. Through this agreement, Gilead gained exclusive access to our innovative portfolio of compounds, including molecules currently in clinical trials, our preclinical programs and a proven drug discovery platform.

As part of this deal, our existing license and collaboration agreement for filgotinib with Gilead was amended for a first time. Under this revised filgotinib agreement, we obtained greater involvement in filgotinib’s global strategy and participate more broadly in the commercialization of the product in Europe, providing the opportunity to build a commercial presence on an accelerated timeline. On December 15, 2020 our license and collaboration agreement for filgotinib with Gilead was amended a second time. Under this arrangement, we will assume sole responsibility in Europe for filgotinib in RA and in all future indications. On September 6, 2021 we agreed together with Gilead to slightly amend the existing arrangement for the development of filgotinib by transferring the sponsorship and operational responsibility of the DIVERSITY trial (incl. its long-term extension studies) from Gilead to us no later than June 30, 2022. As such this trial will become a “Group A activity” (these are studies for which we bear the future development costs) as from April 1, 2022, whereby we take 100% of the development costs and full operational responsibility for this trial as from that moment.

We refer to note 2 of our consolidated financial statements ‘Summary of significant transaction’ for more detailed information. We retain the following three performance obligations, of which the first one was satisfied completely in 2019; ‘i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 to 100/0 (for Group A activities only) on the global development activities of filgotinib, until we complete the remaining development activities (Group A and Group B activities).

We concluded as follows:

Determination of the total transaction price

● In connection with this agreement with Gilead, we recognized a deferred income and an offsetting current financial asset (derivative) of €85.6 million upon signing of the share subscription agreement with Gilead as required under IFRS 9. The deferred income has been added to the transaction price at inception of the agreement because it is considered to be part of the overall consideration received for the three performance obligations.

● We considered that the transaction price included a premium paid by Gilead (through the upfront payment) to acquire warrants (warrant A and warrant B) in the future, upon approval by the shareholders. We measured both warrants at fair value and recognized a warrant issuance liability at closing of the transaction for the same amount (as part of the current deferred income line). This liability is re-measured at each reporting period with a corresponding impact on the allocation of the transaction price to the performance obligation relating to the drug discovery platform as long as the warrants are not approved by the shareholders. Due to the fact that warrant A and initial warrant B were already approved in 2019, only the remeasurement of subsequent warrant B still has an impact on the transaction price considered for the revenue recognition of the performance obligation relating to the drug discovery platform.

● We assessed that the contract modifications of December 15, 2020 and September 6, 2021 only changed the scope of the filgotinib performance obligation and the changes in both fixed and variable consideration were reflective of the updated stand-alone selling price for the remaining activities of this performance obligation. As a result of these modifications, there were increases in the transaction prices of €160.0 million and $15 million, respectively, which have been allocated in their entirety to the filgotinib performance obligation.

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Financing component

● Management considered it is appropriate to adjust the part of the transaction price that was allocated to the filgotinib performance obligation, for the time value of money. The additional consideration as a result of the contract modification of December 15, 2020 was also adjusted for the time value of money.

License on GLPG1690

● This performance obligation is completely satisfied at December 31, 2019. Following the discontinuation of the ziritaxestat trials, we do not expect future milestone payments or royalties.

● After granting the license for GLPG1690, we shared Phase 3 costs equally with Gilead. Any cost reimbursement from Gilead was not recognized as revenue but accounted as a decrease of the related expenses.

Filgotinib amendment

● There is one single performance obligation under IFRS 15: the transfer of a license combined with performance of R&D activities. This is because we considered that the license is not distinct in the context of the contract.

● The transaction price is currently composed of a fixed part, being an upfront license fee and a variable part, being milestone payments, sales based milestones and sales based royalties, and cost reimbursements for R&D activities. Milestone payments are included in the transaction price of the arrangement to the extent that it is highly probable that a significant reversal of revenue will not occur. Milestone payments received from Gilead are recognized in revenue over time till the end of the development plan. Sales based milestones and sales based royalties are also part of the arrangement and are recognized as revenues at a point in time at the moment they occur. During 2020 and 2021 we reported respectively €16.2 million and €3.8 million of revenues from royalties from Gilead.

● Revenues, excluding sales based milestones and sales based royalities are recognized over time through satisfaction of the performance obligation. The "cost-to-cost" input model is applied to measure the progress of the satisfaction of this performance obligation. The estimated costs to complete the performance obligation were reassessed as a result of the contract modifications from 2020 and 2021.

Access rights to the drug discovery platform, option rights and R&D activities

● The revenue allocated to the drug discovery platform will be recognized over time as Gilead receives exclusive access to our drug discovery platform and option rights on our current and future pipeline as well as R&D activities during the collaboration term. Management concluded that an equal spread over the collaboration period is the most reliable and appropriate recognition method.

● At inception of the collaboration (July 2019) we assessed the appropriate period over which to recognize the drug discovery platform revenue to be 10 years. This is because we granted exclusive rights over a 10-year period. However, if at the end of the 10-year period, some programs in existence as of this time would have reached the clinic (i.e. IND filed with regulatory authorities), the rights for those specific programs may be extended, for a maximum of three years. This critical estimate is reassessed at each year-end based on the evolution of our pipeline and is still valid per December 31, 2021.

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The below table summarizes the transaction price of our collaboration with Gilead

	December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020		Other movements in 2021		Filgotinib amendment (September 6, 2021)		December 31, 2021
Allocation of transaction price
Upfront consideration	€	3,845,373			€	160,000	€	4,005,373			€	12,643	€	4,018,016
Milestones achieved		104,171	€	90,192				194,363						194,363
Royalties		—		16,227				16,227	€	3,757				19,984
Impact initial valuation of share subscription		124,604						124,604						124,604
		4,074,148		106,419		160,000		4,340,567		3,757		12,643		4,356,967
Less :
Warrants issuance liabilities
Warrant A		(43,311)						(43,311)						(43,311)
Initial warrant B		(2,545)						(2,545)						(2,545)
Subsequent warrant B		(16,184)		8,325				(7,859)		5,417				(2,442)
		4,012,108		114,744		160,000		4,286,852		9,174		12,643		4,308,669
Allocation to performance obligations
Ziritaxestat		666,967						666,967						666,967
Filgotinib (1)		1,060,395		106,419	€	160,000		1,326,814		3,757	€	12,643		1,343,214
Drug discovery platform (10 years)	€	2,284,747	€	8,325			€	2,293,072	€	5,417			€	2,298,489

(1) With regard to the additional consideration received for the extended cost sharing for filgotinib, we assume the existence of a significant financing component estimated to €44.5 million reflecting the time value of money on the estimated recognition period.

The following table summarizes details of collaboration revenues for the years ended December 31, 2021 and 2020 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, and royalties.

	Over time	Point in time		2021		2020
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	433,884	€	411,417
Gilead collaboration agreement for filgotinib	Ö			203,301		181,816
Gilead collaboration agreement for drug discovery platform	Ö			230,582		229,601
Milestone payments				32,408		46,261
Gilead collaboration agreement for filgotinib	Ö			32,408		46,261
Reimbursement income				-		4,073
Novartis collaboration agreement for MOR106	Ö			-		4,125
AbbVie collaboration agreement for CF	Ö			-		(52)
Royalties				3,801		16,300
Gilead royalties on Jyseleca		Ö		3,757		16,227
Other royalties		Ö		43		72
Total collaboration revenues			€	470,093	€	478,051

Recognition of non-refundable upfront payments and licence fees, and milestone payments related to the filgotinib agreement amounted to €235.7 million in 2021. We recognize the consideration from Gilead allocated to the drug discovery platform on a linear basis over 10 years, of which we recognized €230.6 million in 2021. Additionally, for the year ended December 31, 2021, we recognized in revenue €3.8 million of royalties from Gilead on filgotinib.

The outstanding balance of deferred income from the Gilead collaboration agreement at December 31, 2021 amounted to €2,364.7 million. This is composed of €604.9 million for filgotinib that will be recognized in revenue over the estimated remaining development period and €1,759.8 million for the exclusive access to our drug discovery platform. The latter is composed of €1,757.4 million that will be linearly recognized over the next years and €2.4 million is related to the warrant issuance liability reserved for the subsequent warrant B.

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Cost of sales

Cost of sales related to Jyseleca product net sales for the year ended December 31, 2021 amounted to €1.6 million.

R&D expenditure

The following table summarizes our R&D expenditure for the years ended December 31, 2021 and 2020, together with the changes to those items.

	Year ended December 31,
	2021		2020		% Change
		(Euro, in thousands)
Personnel costs	€	(165,239)	€	(161,509)	2%
Subcontracting		(251,085)		(301,841)	(17)%
Disposables and lab fees and premises costs		(24,025)		(22,349)	8%
Depreciation and impairment		(17,518)		(11,707)	50%
Professional fees		(15,862)		(12,692)	25%
Other operating expenses		(17,978)		(13,570)	32%
Total R&D expenses	€	(491,707)	€	(523,667)	(6)%

The decrease in our R&D expenditure was principally due to reduced subcontracting costs primarly due to the winding down of the programs with ziritaxestat (IPF), MOR106 (atopic dermatitis) and GLPG1972 (OA) and to reduced spend on our other programs. This was partly offset by cost increases for our filgotinib,Toledo (SIKi) and TYK2 programs, on a yearly comparison basis. Further offsetting items were:

● A slight increase in personnel costs explained by an increase in salaries driven by higher average number of FTEs on a yearly comparison basis, mainly driven by an increase in our Medical Affairs staff. This increase was partly offset by decreased costs of the subscription right plans and by a reassessment of the defined benefit accounting of our employee benefit plans under IFRS.

● Impairment of capitalized in-licensing fees

● Increase in professional fees due to additional consulting expenses related to the implementation of new R&D software applications.

● Increase in other operating expenses, mainly software and license expenses.

The table below summarizes our R&D expenditure for the years ended December 31, 2021 and 2020, broken down by program.

	Year ended December 31,
	2021		2020		% Change
	(Euro, in thousands)
Filgotinib program	€	(171,204)	€	(126,879)		35%
Ziritaxestat program		(26,725)		(55,902)		(52)%
OA program on GLPG1972		(2,285)		(22,966)		(90)%
Toledo program		(91,957)		(87,107)		6%
TYK2 program on GLPG3667		(27,141)		(20,199)		34%
AtD program on MOR106		(112)		(7,618)		(99)%
Other programs		(172,284)		(202,996)		(15)%
Total R&D expenses	€	(491,707)	€	(523,667)		(6)%

Other programs comprise expenditure for other projects in research phase and other early-stage development programs focused on inflammation, fibrosis and other indications.

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Sales and marketing expenses

The following table summarizes our sales and marketing expenses for the years ended December 31, 2021 and 2020, together with the changes to those items.

	Year ended December 31,
	2021		2020		% Change
		(Euro, in thousands)
Personnel costs	€	(59,102)	€	(31,727)	86%
Depreciation		(504)		(140)	260%
External outsourcing costs		(62,321)		(31,885)	95%
Sales and marketing expenses recharged to Gilead		59,699		4,711	1167%
Professional fees		(532)		(3,420)	(84)%
Other operating expenses		(7,196)		(4,007)	80%
Total sales and marketing expenses	€	(69,956)	€	(66,468)	5%

The increase in our sales and marketing expenses for the year ended December 31, 2021, is due to the commercial launch of filgotinib in Europe. Personnel costs increased explained by an increase in the commercial work force from 99 average FTEs in 2020 to 248 average FTEs in 2021. External outsourcing costs increased primarily explained by increased costs for marketing campaigns and information, market research and promotional expenses. This was partially offset by additional costs recharged by us to Gilead in the scope of our co-commercialization cost sharing for filgotinib in Belgium, the Netherlands, Luxembourg, France, Italy, Spain, Germany and Great Britain, for which we have recharged €59.7 million to Gilead in 2021 (compared to €4.7 million recharges for the year ended December 31, 2020). This was due to the shift of commercial activities from Gilead to Galapagos in the course of 2021.

As from January 1, 2022, the 50/50 filgotinib co-commercialization cost sharing agreement with Gilead will come to its end and we will therefore bear all commercialization costs for Europe.

General and administrative expenses

The following table summarizes our general and administrative expenses for the years ended December 31, 2021 and 2020, together with the changes to those items.

	Year ended December 31,
	2021		2020		% Change
		(Euro, in thousands)
Personnel costs	€	(71,190)	€	(70,110)	2%
Depreciation and impairment		(16,621)		(5,147)	223%
Legal and professional fees		(26,072)		(25,592)	2%
Other operating expenses		(27,016)		(17,908)	51%
Total general and administrative expenses	€	(140,899)	€	(118,757)	19%

The increase in our general and administrative expenses in 2021 was mainly due to an exceptional impairment cost of €9.3 million on other tangible fixed assets following our decision to reassess the construction project of our new future headquarter location in Mechelen (Belgium), as well as higher cost for our insurance programs (an increase of €4.0 million compared to 2020) and the newly applicable tax on securities accounts in 2021 in Belgium for an amount of €4.3 million, both reported as other operating expenses. The Belgian tax on securities accounts is an annual tax of 0.15% which is levied on securities accounts of which the average value calculated according to certain principles would exceed €1.0 million.

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Other operating income

The following table summarizes our other operating income for the years ended December 31, 2021 and 2020, together with the changes to those items.

	Year ended December 31,
	2021		2020		% Change
	(Euro, in thousands)
Grant income	€	7,334	€	5,452	35%
R&D incentives		44,888		45,951	(2)%
Other income		1,526		804	90%
Total other operating income	€	53,749	€	52,207	3%

The grant income in 2021 was fully related to grants from a Flemish agency and the Belgian government.

The grant income mainly comprises a grant received in 2021 from the National Institute for Health and Disability Insurance amounting to €5.4 million (2020: €5.0 million). This grant aims to incentivize innovative Belgian biotech companies who are performing research and development activities in order to identify new medicines.

In many cases these grant agreements carry clauses which require us to maintain a presence in the same region for a number of years and invest according to pre-agreed budgets.

R&D incentives income was primarily composed of:

● Income from an innovation incentive system of the French government, which represented €12.4 million of other income for the year ended December 31, 2021 compared to €12.4 million for the year ended December 31, 2020

● Income from Belgian R&D incentives with regard to incurred R&D expenses, which represented €20.9 million of other income for the year ended December 31, 2021 compared to €21.7 million for the year ended December 31, 2020

● Tax rebates on payroll withholding taxes of R&D personnel in Belgium and the Netherlands, representing €11.7 million of other income for the year ended December 31, 2021 compared to €11.9 million for the year ended December 31, 2020

Fair value re-measurement of warrants granted to Gilead

Total fair value re-measurement for the years ended December 31, 2021, and 2020 can be split up as follows:

	Year ended December 31,
	2021		2020
	(Euro, in thousands)
Fair value re-measurement of initial warrant B	€	2,960	€	3,034
Total fair value re-measurement of warrants	€	2,960	€	3,034

Gilead warrants B

We measured the warrants (initial and subsequent warrant B) at fair value and recognized a warrant issuance liability at closing date of the transaction on August 23, 2019. Upon approval of the issuance of initial warrant B on October 22, 2019 (warrant approval date) the variable consideration was re-measured with a corresponding impact on the transaction price allocated to the performance obligation relating to our drug discovery platform, and the warrant issuance liability became a financial liability measured at fair value with changes through profit or loss as from that moment.

The issuance of initial warrant B was approved on October 22, 2019 by the extraordinary general meeting of shareholders and is not yet exercised by Gilead at December 31, 2021. The fair value measurement of this financial

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liability is categorized as level 3 in the fair value hierarchy. Initial warrant B has been valued on the basis of a Longstaff-Schwartz Monte Carlo model. The input data used in the model were derived from market observations (volatility, discount rate and share price) and from management estimates (number of shares to be issued and applied discount for lack of marketability).

The recognized fair value gain of €3.0 million is mainly the result of a decrease of our share price and of its implied volatility in 2021. The fair value of the financial liability related to the initial warrant B amounts to €0.2 million on December 31, 2021 (€3.2 million on December 31, 2020).

The financial liability will be re-measured at fair value at each reporting period.

Fair value re-measurement of the financial instrument related to the issuance of initial warrant B	2021		2020
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(3,164)	€	(6,198)
Change in fair value recorded in profit or loss		2,960		3,034
Fair value on December 31,	€	(204)	€	(3,164)

The fair value of the financial liability related to the initial warrant B of €0.2 million at December 31, 2021 was presented as current financial instrument, in the section current liabilities, in our consolidated statement of financial position and will be re-measured at each reporting period.

Subsequent warrant B is still subject to approval by an extraordinary general meeting of shareholders and is therefore still presented as warrant issuance liability in our deferred income (we refer to note 25 of our consolidated financial statements). Subsequent warrant B has been valued on the basis of a Longstaff-Schwartz Monte Carlo model. The input data used in the model were derived from market observations (volatility, discount rate and share price) and from management estimates (number of shares to be issued and applied discount for lack of marketability).

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Other financial income and expense

The following table summarizes other financial income and expense for the years ended December 31, 2021 and 2020.

	Year ended December 31,
	2021		2020		% Change
		(Euro, in thousands)
Other financial income:
Interest income	€	2,865	€	10,030	(71)%
Effect of discounting long term R&D incentives receivables		93		93	-
Currency exchange gain		60,727		4,697	1193%
Fair value gain on financial assets held at fair value through profit or loss		—		2,397	(100)%
Fair value gain on current financial investments		6,763		—
Other finance income		100		1,450	(93)%
Total other financial income		70,548		18,667	278%
Other financial expenses:
Interest expenses		(11,656)		(9,389)	24%
Effect of discounting long term deferred income		(9,289)		(16,278)	(43)%
Currency exchange loss		(4,235)		(110,416)	(96)%
Fair value loss on financial assets held at fair value through profit or loss		(4,919)		—
Loss upon sale of financial assets held at fair value through profit or loss		—		(88)	(100)%
Fair value loss on current financial investments		—		(15,901)	(100)%
Other finance charges		(812)		(773)	5%
Total other financial expense		(30,911)		(152,844)	(80)%
Total net other financial expense	€	39,637	€	(134,177)	(130)%

The currency exchange gain of €60.7 million in 2021 primarily related to €56.6 million of unrealized exchange gains on cash and cas equivalents held in U.S. dollars, as compared to an unrealized exchange loss in 2020 of €106.4 million on cash and cash equivalents and current financial investments held in U.S. dollar. As from 2021 on the currency exchange results on the current financial investments (an exchange gain of €16.3 million) are included in the fair value result on current financial investments. We have cash, cash equivalents and current financial investments held in U.S. dollars, which could generate foreign currency exchange gain or loss in our financial results in accordance with the fluctuation of the EUR/U.S. dollar exchange rate as our functional currency is EUR. Net currency exchange gain amounted to €56.5 million for the year ended December 31, 2021, compared to a net exchange loss of €105.7 million for the year ended December 31, 2020.

Interest expenses were related to interests on term deposits, treasury bills that came to maturity and on leases of buildings and cars. Other financial expense for 2021 also included €9.3 million of costs (€16.3 million for the year ended December 31, 2020) linked to the accounting under IFRS 15 for a financing component embedded in the upfront consideration received from Gilead in connection with the revised agreement for filgotinib.

Interest income was related to interests on term deposits, notice accounts and current financial investments.

For the year ended December 31, 2021, fair value loss on financial assets held at fair value through profit or loss consisted of negative effects from the fair value re-measurement of financial assets classified as equity investments which qualify for level 1 fair value measurement based upon the closing price of such securities at each reporting date, and of an impairment loss on a participation in a non-listed company. The fair value gain on the current financial investments reflects the positive exchange differences booked on these current financial investments, compensated by the interest on treasury bills which have not yet expired and the effect of the re-measurement at fair value of the money

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market funds on December 31, 2021. These re-measurement losses are mainly the result of the negative returns on the EUR denominated money market funds.

For more information on currency exchange fluctuations on our business, please see the section of this annual report titled “Item 11—Quantitative and qualitative disclosures about market risk—Foreign exchange risk.”

Income Taxes

The following table summarizes our tax result for the years ended December 31, 2021 and 2020.

	Year ended December 31,
	2021		2020
		(Euro, in thousands)
Current tax	€	(2,020)	€	(1,069)
Deferred tax		(404)		(157)
Income taxes	€	(2,423)	€	(1,226)

Current tax, consisting of corporate income taxes, and deferred tax income/loss (-) related to subsidiaries working on a cost plus basis.

We refer to note 11 of our consolidated financial statements ‘Income taxes’.

Results from Discontinued Operations

On November 23, 2020, we signed a share purchase agreement with Selvita S.A. in relation to the disposal of Fidelta d.o.o. (our previous fee-for-service segment). The transaction was completed on January 4, 2021. We have classified the assets and liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020. The results of Fidelta were reported as discontinued operations in our consolidated income statement. Fidelta will continue performing drug discovery services for us for the next four years for which we have purchase commitments for an aggregate amount of €19.3 million on December 31, 2021.

(i) Disposal of Fidelta

a. Consideration received

		(Euro, in thousands)
Cash received	€	37,080
Total cash received	€	37,080

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b. Analysis of assets and liabilities over which control was lost

	January 4, 2021
		(Euro, in thousands)
Intangible assets	€	21
Property, plant and equipment		10,050
Other non-current assets		160
Trade and other receivables		4,428
Cash and cash equivalents		7,884
Other current assets		863
Total assets		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		4,479
Current lease liabilities		727
Income tax payable		356
Total liabilities		9,747
Net assets disposed of	€	13,658

c. Gain on disposal

		(Euro, in thousands)
Cash received	€	37,080
Net assets disposed of		(13,658)
Effect of cumulative translation adjustment reclassified from equity on loss of control		(731)
Costs associated to the sale		(500)
Gain on disposal	€	22,191

d. Net cash proceedsfrom disposal of Fidelta

		(Euro, in thousands)
Cash received	€	37,080
Less: cash and cash equivalents balances disposed of		(7,884)
Total consideration received, net of cash disposed of		29,196
Costs associated to the sale		(500)
Cash in from disposal of Fidelta, net of cash disposed of	€	28,696

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ii) Result from discontinued operations

	Year ended December 31,
	2021		2020			2019
		(Euro, in thousands, except share and per share data)
Fee-for-service revenues	€	—	€	16,140	€	10,084
Total revenues		—		16,140		10,084
Gain on disposal of subsidiaries		22,191		—		—
Research and development expenses		—		(7,685)		(7,229)
General and administrative expenses		—		(2,000)		(1,319)
Other income		—		—		8
Operating income		22,191		6,455		1,544
Other financial income		—		179		93
Other financial expenses		—		(176)		(102)
Income before tax		22,191		6,458		1,535
Income taxes		—		(893)		(379)
Net income	€	22,191	€	5,565	€	1,156
Basic income per share from discontinued operations	€	0.34	€	0.09	€	0.02
Diluted income per share from discontinued operations	€	0.34	€	0.08	€	0.02
Weighted average number of shares (in thousands of shares)		65,500		65,075		57,614
Weighted average number of shares - Diluted (in thousands of shares)		65,831		67,572		60,112

(iii) Cash flow from discontinued operations

		2021	2020		Variance
		(Euro, in thousands)
Net cash flows generated from operating activities	€	—	€	7,173	€	(7,173)
Net cash flows generated from/used in (-) investing activities		28,696		(2,284)		30,980
Net cash flows used in financing activities		—		(664)		664
Net cash flow from discontinued operations	€	28,696	€	4,225	€	24,472

Comparison of years ended December 31, 2020 and 2019

We refer to the “Item 5 - Operating and financial review and prospects - Financial operations overview” of our year ended December 31, 2020 Form 20-F for the comparison of the years ended December 31, 2020 and 2019.

B.     Liquidity and capital resources

With the exception of the year ended December 31, 2019, we have incurred significant operating losses. We have funded our operations through public and private placements of equity securities, upfront and milestone payments and royalties received from pharmaceutical partners under our collaboration agreements, payments under our fee-for-service contracts, funding from governmental bodies, interest income as well as the net proceeds from the sale of our service division and our fee-for-service division. As from the year ended December 31, 2021, net product sales also started to contribute funding our operations. Our cash flows may fluctuate and are difficult to forecast and will depend on many factors. As at December 31, 2021, our current financial investments and cash and cash equivalents amounted to €4,703.2 million. For more information on our policies regarding financial instruments, please see “Note 3—Significant

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accounting policies—Financial instruments” included in our consolidated financial statements appended to this annual report.

Cash flows

Comparison for the years ended December 31, 2021 and 2020

The following table summarizes the results of our audited consolidated statement of cash flows for the years ended December 31, 2021 and 2020.

	2021		2020		Variance
		(Euro, in thousands)
Cash and cash equivalents at beginning of the period	€	2,143,071	€	1,861,616	€	281,455
Net cash flows used in operating activities		(503,827)		(427,336)		(76,492)
Net cash flows generated from investing activities		541,238		757,288		(216,050)
Net cash flows generated from/used in (-) financing activities		(3,876)		22,040		(25,916)
Effect of exchange rate differences on cash and cash equivalents		56,763		(70,539)		127,302
Cash and cash equivalents at end of the period	€	2,233,368	€	2,143,071	€	90,297

	2021		2020		Variance
		(Euro, in thousands)
Current financial investments at end of the period	€	2,469,809	€	3,026,278	€	(556,469)
Cash and cash equivalents from continuing operations at end of the period		2,233,368		2,135,187		98,181
Cash and cash equivalents classified as assets held for sale at end of the period		—		7,884		(7,884)
Current financial investments and cash and cash equivalents at end of the period	€	4,703,177	€	5,169,349	€	(466,172)

The net increase of €90.3 million in cash and cash equivalents for the year ended December 31, 2021, consisted of positive unrealized exchange differences of €56.8 million and increase in cash and cash equivalents of €33.5 million. This latter was composed of (i) €564.8 million of operational cash burn, (ii) €3.3 million of cash proceeds from capital and share premium increase from exercise of subscription rights in 2021, (iii) the net sale of current financial investments of €566.4 million, and (iv) €28.7 million cash in from disposal of subsidiaries, net of cash disposed of.

The operational cash burn/cash flow is defined as the increase or decrease in our cash and cash equivalents (excluding the effect of exchange rate differences on cash and cash equivalents), minus:

i. the net proceeds, if any, from share capital and share premium increases included in the net cash flows generated from/used in (-) financing activities

ii.the net proceeds or cash used, if any, in acquisitions or disposals of businesses; the movement in restricted cash and movement in current financial investments, if any, included in the net cash flows generated from/used in (-) investing activities.

This alternative liquidity measure is in our view an important metric for a biotech company in the development stage.

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The following table presents a reconciliation of the operational cash burn, to the closest IFRS measures, for each of the periods indicated:

	2021		2020
	(Euro, in thousands)
Increase in cash and cash equivalents (excluding effect of exchange differences)	€	33,535	€	351,994
Less :
Net proceeds from capital and share premium increases		(3,314)		(28,287)
Net sale of current financial investments		(566,365)		(841,110)
Cash in from disposal of subsidiaries, net of cash disposed of		(28,696)		—
Total operational cash burn	€	(564,840)	€	(517,404)

The increase in net cash flow used in operating activities for the year ended December 31, 2021, is primarily explained by the decrease in trade liabilities of €35.4 million for the year ended December 31, 2021 as compared to an increase of €31.2 million for the year ended December 31, 2020, and the increase in inventory in 2021 of €21.2 million.

The decrease in net cash generated from investing activities for the year ended December 31, 2021, can be primarily explained by the lower net sale of current financial investments which decreased from €841.1 million for the year ended December 31, 2020 to €566.4 million for the year ended December 31, 2021. This was partly offsetby lower investments in (in)tangible fixed assets, which decreased from €91.3 million for the year ended December 31, 2020 to €57.9 million for the year ended December 31, 2021, and by the cash proceeds from the disposal of Fidelta of €28.7 million.

The decrease in net cash flow generated from/used in (-) financing activities for the year ended December 31, 2021, can primarily be attributed to lower proceeds received on exercises of subscription rights, which were for the years ended December 31, 2021 and 2020 respectively €3.3 million and €28.3 million.

The consolidated cash flow table above included both continuing and discontinued operations. The table below summarizes our statement of cash flows from discontinued operations included in the table above for the years ended December 31, 2021 and 2020.

		2021	2020		Variance
		(Euro, in thousands)
Net cash flows generated from operating activities	€	—	€	7,173	€	(7,173)
Net cash flows generated from/used in (-) investing activities		28,696		(2,284)		30,980
Net cash flows used in financing activities		—		(664)		664
Net cash flow from discontinued operations	€	28,696	€	4,225	€	24,472

Comparison for the years ended December 31, 2020 and 2019

We refer to the “item 5 - Operating and financial review and prospects - Financial operations overview” of our year ended December 31, 2020 Form 20-F for the comparison of the years ended December 31, 2020 and 2019.

Cash and funding sources

The table below summarizes our sources of equity financing, excluding subscription right exercises, for the years ended December 31, 2021, 2020 and 2019.

	Private placement
	(Euro, in thousands)
2019	€	1,323,675
2020		—
2021		—
Total sources of equity financing	€	1,323,675

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On August 23, 2019, Gilead subscribed to 6,828,985 new ordinary shares at a price of €140.59 per share. We received €960.1 million of gross proceeds, decreased by €4.4 million of expenses, which was all paid at December 31, 2019. The total net cash proceeds from this share subscription by Gilead amounted to €955.6 million. On November 6, 2019, Gilead exercised warrant A and subscribed to 2,617,791 new ordinary shares at a price of €140.59 resulting in net proceeds of €368.0 million. As of December 31, 2021, we had no long-term debt, except for lease liabilities.

Our ongoing financial commitments are listed in the section of this annual report titled “Item 5.F.—Tabular disclosure of contractual obligations” and mainly consist of purchase commitments.

Payment of dividends by subsidiaries

The amount of dividends payable by our subsidiaries to us is subject to, among other restrictions, general limitations imposed by the corporate laws, capital transfer restrictions and exchange control restrictions of the respective jurisdictions where those subsidiaries are organized and operate.

Of our current financial investments and cash and cash equivalents held outside of our Belgian entities as of December 31, 2021 and 2020, the amount of cash that would have been subject to withholding taxes if transferred to us by way of dividends and the amount of cash that could not have been transferred by law was in each case immaterial.

Funding requirements

Based on conservative assumptions, that may prove to be wrong, we believe that our existing current financial investments and cash and cash equivalents will enable us to fund our operating expenses and capital expenditure requirements at least for a period of 12 months.

Our present and future funding requirements will depend on many factors, including, among other things:

● the terms and timing of milestones, in-licensing payments and expense reimbursement payments, if any, from our collaboration and alliance agreements;

● the progress, timing, scope and costs of preclinical testing and clinical trials for any current or future compounds;

● the number and characteristics of potential new compounds we identify and decide to develop;

● our need to expand our development activities and, potentially, our research activities;

● the costs involved in filing patent applications and maintaining and enforcing patents;

● the cost, timing and outcomes of regulatory approvals;

● selling and marketing activities undertaken in connection with the anticipated commercialization of any of our current or future compounds; and

● the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future sales of our products.

We may raise additional capital through the sale of equity or convertible debt securities. In such an event, your ownership interest may be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a holder of the ADSs or our ordinary shares.

For more information as to the risks associated with our future funding needs, see the section of this annual report titled “Item 3.D.—Risk Factors—Risks Related to Our Financial Position and Need for Additional Capital.”

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Capital expenditures

Our commitments for capital expenditures as of December 31, 2021 amounted to €21.1 million.

Our capital expenditures amounted to €57.9 million, €91.3 million and €45.7 million for the years ended December 31, 2021, 2020 and 2019 respectively.

In 2021, our capital expenditures consisted of €46.2 million for land and building additions, laboratory and computer and other equipment for €8.0 million, €3.7 million of intangible assets related to license fees (€1.3 million) and software development (€2.4 million).

In 2020, our capital expenditures consisted of €30.7 million for land and building additions, laboratory and computer and other equipment for €11.8 million, €48.8 million of intangible assets related to license fees (€39.3 million) and software development (€9.5 million).

In 2019, our capital expenditures consisted of €15.1 million for land and building additions, laboratory and computer and other equipment for €6.4 million, €23.3 million of intangible assets related to activated contract costs (€15.4 million), license fees (€2.4 million) and software development (€5.5 million).

C.     Research and development, patents and licenses, etc

For a discussion of our R&D activities, see “Item 4.B.—Business Overview” and “Item 5.A.—Operating Results.”

D.     Trend information

Other than as disclosed elsewhere in this annual report, we are not aware of any trends, uncertainties, demands, commitments or events for the period from January 1, 2021 to December 31, 2021 that are reasonably likely to have a material adverse effect on our net revenues, income, profitability, liquidity or capital resources, or that caused the disclosed financial information to be not necessarily indicative of future operating results or financial conditions. For a discussion of trends, see “Item 4.B.—Business overview,” “Item 5.A.—Operating results,” and “Item 5.B.—Liquidity and capital resources.”

E.     Off-balance sheet arrangements

During the periods presented, we did not and do not currently have any off-balance sheet arrangements as defined under SEC rules, such as relationships with unconsolidated entities or financial partnerships, which are often referred to as structured finance or special purpose entities, established for the purpose of facilitating financing transactions that are not required to be reflected on our balance sheets.

Contingent liabilities and assets

On January 4, 2021, we closed the sale of our Croatian subsidiary Fidelta. Selvita acquired 100% of the outstanding shares for a total consideration of €37.1 million. In accordance with common practice, we gave representations and warranties which are capped and limited in time.

In December 2015, we entered into a license and collaboration agreement to co-develop filgotinib with Gilead in rheumatoid arthritis, Crohn’s disease, ulcerative colitis and other indications. This agreement was revised a first time in August 2019 and in December 2020, we agreed to further revise this agreement. Under the terms of the new arrangement, we assumed all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. As from January 1, 2021, we bear the future development costs for certain studies, in lieu of the equal cost split contemplated by the previous agreement. The existing 50/50 global development cost sharing arrangement will continue for certain other studies.

All commercial economics on filgotinib in Europe will transfer to us as of January 1, 2022, subject to payment by us of tiered royalties of 8% to 15% of net sales in Europe to Gilead, starting in January 1, 2024. In connection with the amendments to the existing arrangement for the commercialization and development of filgotinib, Gilead has agreed to irrevocably pay us €160 million, subject to certain adjustments for higher than budgeted development costs. Gilead paid

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€35 million in January 2021, €75 million in April 2021 and will pay an additional €50 million in 2022. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. However, we will remain eligible to receive tiered royalty percentages ranging from 20% to 30% on Gilead's global net sales of filgotinib outside of Europe and future development and regulatory milestone-based payments of up to $295 million and sales-based milestone payments of up to $600 million. We achieved two milestones under the first revised agreement in September 2020 totaling $105 million. In September 2021, we and Gilead agreed to transfer the sponsorship of the DIVERSITY study and its LTE study from Gilead to Galapagos. The transfer is intended to be completed by June 30, 2022. From April 1, 2022, Galapagos will also be solely responsible for all development costs for the DIVERSITY study and its LTE study. Upon completion of the transfer of and operational responsibility for the DIVERSITY study, Gilead will make a one-time payment of $15 million to Galapagos in consideration for Galapagos assuming responsibility for the DIVERSITY study. If the European Medicines Agency grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY study, then royalties payable by Galapagos to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6% to 10.5% of net sales in Europe.

Gilead remains responsible for commercial activities outside of Europe.

As explained in the summary of the significant transaction in note 2 to our consolidated financial statements, Gilead received exclusive option rights to acquire a license on compounds. Exercising such an option would trigger an opt-in payment, a 50-50 cost share mechanism for the future development activities, development and sales milestones and royalties.

F.     Tabular disclosure of contractual obligations

We have certain purchase commitments with contract research organization subcontractors and with Gilead principally. Future events could cause actual payments to differ from these estimates. On December 31, 2021, we had outstanding obligations for purchase commitments, which become due as follows:

	Total		Less than 1 year			1 - 3 years		3 - 5 years		More than 5 years
					(Euro, in thousands)
Purchase commitments	€	369,937	€	212,065		€	105,947	€	46,426	€	5,499

In addition to the table above, we have a contractual cost sharing obligation related to our collaboration agreement with Gilead for filgotinib, which is disclosed under the sections of this annual report titled “Item 5–Operating and Financial Review and Prospects.–Collaboration and Alliance Agreements–Option, License and Collaboration Agreement with Gilead”, and “Item 7.B.–Related Party Transactions.–Transaction with Major Shareholder”. The contractual cost sharing commitment amounted to €369.9 million at December 31, 2021 (€493.4 million at December 31, 2020), for which we have purchase commitments of €169.6 million at December 31, 2021 reflected in the table above (€18.1 million at December 31, 2020).

The table above does not include retirement benefit liabilities, non-current lease liabilities, non-current deferred income and other non-current liabilities.

We provide retirement benefit plans for all of our qualifying employees. We classify these benefits on the basis of the type of benefit provided and in particular as defined contribution plans, defined benefit obligations and other provisions for employees. At December 31, 2021 the net liability for such obligations amounted to €11.7 million (€15.0 million at December 31, 2020).

Non-current lease liabilities amounted to €19.7 million at December 31,2021 (€23.0 million at December 31, 2020) and related to the non-current portion of liabilities linked to right-of-use under IFRS 16 primarily for leased buildings and leased cars.

Non-current deferred income was €1,944.8 million at December 31, 2021 (€2,366.0 million at December 31, 2020) and related to the non-current portion of the transaction price from Gilead still to be recognized as collaboration revenue in the future for our collaboration on filgotinib and the exclusive access rights to our drug discovery platform. See note 25 to the consolidated financial statements.

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Other non-current liabilities amounted to €7.1 million at December 31, 2021 (€8.1 million at December 31, 2020) and primarily related to RSU plans granted in 2019, 2020 and 2021. See notes 3 and 30 to the consolidated financial statements. Management board members and other employees were granted RSU’s in 2019, 2020 and 2021. An RSU is a grant that takes the form of a promise that employees will receive Galapagos stock in the future and it will be payable, at the company’s discretion in cash or in shares, upon completion of a certain vesting period. Each RSU reflects the value of one Galapagos share. The RSU’s are measured based on the average share price over the 30-calendar day period preceding the measurement date. We recognize the corresponding expense and liability over the vesting period. The fair value of the liability is re-measured at each reporting date because currently it is management’s intention to settle the RSU’s in cash.

G.     Safe Harbor

This annual report contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act and as defined in the Private Securities Litigation Reform Act of 1995. See “Special Note Regarding Forward-Looking Statements” at the beginning of this annual report.

Item 6   Directors, senior management and employees

A.     Directors and senior management

Supervisory board

As a listed company with its registered office at Mechelen (Belgium), Galapagos is required to apply the Belgian Code of Companies and Associations (‘Belgian Companies Code”) and 2020 Belgian Corporate Governance Code (the “2020 Belgian Corporate Governance Code”), which both entered into force on January 1, 2020.

For the reporting year beginning on January 1, 2021, the 2020 Belgian Corporate Governance Code was our reference code. On April 28, 2020, following the amendment of our articles of association as a consequence of the then newly applicable Belgian Companies Code, Galapagos’ supervisory board approved an updated corporate governance charter. The corporate governance charter applies in addition to the law, Galapagos’ articles of association and the corporate governance provisions included in the Belgian Companies Code and the 2020 Belgian Corporate Governance Code. It describes the main aspects of corporate governance at Galapagos, including its governance structure, the terms and functioning of the supervisory and management board and its committees, and the rules of conduct.

The 2020 Belgian Corporate Governance Code requires companies to make an explicit choice for one of the governance structures provided for in the Belgian Companies Code. As of April 28, 2020, Galapagos has a two-tier governance structure as provided for by the Belgian Companies Code, with the supervisory board replacing the board of directors, and the management board replacing the executive committee.

The supervisory board is responsible for the general policy and strategy of the company and has all powers which are specifically reserved for it under the Belgian Companies Code. The supervisory board also supervises the management board. The management board exercises all powers which are not reserved for the supervisory board in accordance with the Belgian Companies Code.

In light of the recent leadership transition, the supervisory board reviewed whether the chosen governance structure is still appropriate and decided to propose a new governance structure to the general shareholders’ meeting, being a one-tier governance structure, consisting of a board of directors and an executive committee to which certain powers are delegated by the board of directors. On the date of this report, our articles of association have not yet been amended. The supervisory board invites the shareholders of Galapagos NV to approve the introduction of a one-tier governance structure at the occasion of the extraordinary shareholders’ meeting to be held on April 26, 2022.

The supervisory board has established an audit committee and a nomination and remuneration committee. Both have an advisory function. Finally, the management board has delegated the daily management of the company to one management board member, i.e. its Chief Executive Officer.

We currently have eight supervisory board members, less than a majority of whom are citizens or residents of the United States.

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Under our articles of association, our supervisory board must be composed of between five and nine members, of which at least three are independent directors as defined by the Belgian Companies Code. All supervisory board members are non-executive directors. Within these limits, the number of members of the supervisory board is determined by our shareholders. Supervisory board members are elected, re-elected and may be removed at a shareholders’ general meeting with a simple majority vote of our shareholders. Pursuant to our articles of association, our supervisory board members serve terms of up to four years. Members of the supervisory board whose mandate has come to an end may be reappointed.

Subject to the approval of Galapagos’ shareholders and certain other conditions, Gilead has the right under the terms of the share subscription agreement to have two designees appointed to our supervisory board. The special shareholders’ meeting of October 22, 2019 approved the appointment of Daniel O’Day and Linda Higgins as directors of Galapagos NV.

At the annual shareholder’s meeting of April 28, 2021, the mandates of Dr. Parekh and Ms. Bosley were renewed respectively for a term of four years and one year.

The following table sets forth certain information with respect to the current members of our supervisory board, including their ages, as of December 31, 2021:

Name	Age	Date service began in current term	Date of expiration of current term (1)	Position(s)
Raj Parekh, MA, Dphil (2)	61	2021	2025	Chairman of the supervisory board
Howard Rowe, JD (3)	52	2018	2022	Supervisory board member
Katrine Bosley (2)	53	2021	2022	Supervisory board member
Mary Kerr, Ph.D. (3)	60	2020	2024	Supervisory board member
Peter Guenter (3)	59	2019	2023	Supervisory board member
Daniel O'Day	57	2019	2023	Supervisory board member
Linda Higgins	59	2019	2023	Supervisory board member
Elisabeth Svanberg, MD, Ph.D. (2)	60	2020	2024	Supervisory board member
(1) The term of the mandates of the supervisory board member will expire immediately after the annual shareholders' meeting held in the year set forth next to the member's name.
(2) Member of the nomination and remuneration committee.
(3) Member of the audit committee.

The address for our supervisory board members is Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium.

Six out of eight of the members of the supervisory board are independent under the Nasdaq Stock Market listing and US Securities Exchange Act requirements: Dr. Parekh (Chair), Mr. Rowe, Ms. Bosley, Dr. Kerr, Mr. Guenter and Dr. Svanberg. Five out of eight of the members of the supervisory board are independent under Belgian law: Mr. Rowe, Ms. Bosley, Dr. Kerr, Mr. Guenter and Dr. Svanberg. In 2021, the supervisory board was therefore composed of a majority of independent members.

The following is the biographical information of the members of our supervisory board (members per December 31, 2021):

Rajesh Parekh, MA, DPhil has served as the Chairman and non-executive member of our supervisory board since 2004. Dr. Parekh is a General Partner at Advent Life Sciences LLP, which he joined in 2006. During an academic career at Oxford University, he co-founded Oxford GlycoSciences PLC, where he served as Chief Scientific Officer and Chief Executive Officer from 1988 until its sale to Celltech Group PLC (now UCB SA) in 2003. He has founded or served on the boards of several life sciences companies in the United States and Europe including Avila Therapeutics, Inc.; EUSA Pharma (Europe) Limited; Biocartis NV; Amsterdam Molecular Therapeutics (AMT) Holding NV (now uniQure); Aura, Inc.; Artax, Inc.; and Project Paradise Limited. He was also a member of the supervisory board of the Novartis Venture Fund. Dr. Parekh currently serves as a member of the board of directors of Advent Life Sciences LLP; Aleta, Inc.; Alpha Anomeric SAS; Amphista Therapeutics Ltd.; Arrakis, Inc.; Aura Biosciences; Eloxx, Inc., Levicept Limited; PE

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Limited; Pheno Therapeutics Ltd. and Tridek-One Therapeutics SAS. He received his MA in Biochemistry and DPhil in Molecular Medicine from the University of Oxford, where he has also been a Senior Research Fellow and Professor.

Howard Rowe, JD has served as a non-executive member of our supervisory board since 2010. Mr. Rowe is Managing Director at Hayfin Capital Management LLP, where he serves as Head of Healthcare and is a member of the Investment Committee and Operating Committee. Prior to joining Hayfin Capital Management, Mr. Rowe was a Managing Director with The Goldman Sachs Group, Inc. where he had multiple healthcare responsibilities over his 12 years at the firm. His most recent roles at Goldman Sachs were as part of the European Special Situations and Principal Strategies teams where he established and led the private healthcare investing effort. During that time he served on the boards of EUSA Pharma (Europe) Limited, Healthcare Brands International Limited, SmallBone Innovations, Inc., MedAvante, Inc. and Ikonisys, Inc. Prior to his investing activities, Mr. Rowe was a senior member of the European Healthcare Investment Banking team, where he advised numerous corporate clients on M&A and corporate finance activities. Before joining Goldman Sachs, he was a corporate lawyer with the law firm Sullivan & Cromwell LLP. Mr. Rowe received his Bachelor of Science in Psychobiology from the University of Southern California and his JD from Harvard Law School.

Katrine Bosley has served as a non-executive member of our supervisory board since 2013. Ms. Bosley served as the President, Chief Executive Officer and member of the board of directors of Editas Medicine, Inc. from June 2014 to March 2019. Prior to joining Editas, Ms. Bosley was the Entrepreneur-inResidence at The Broad Institute from 2013 to 2014. From 2009 to 2012, Ms. Bosley was President, Chief Executive Officer and member of the board of directors of Avila Therapeutics, Inc., which was acquired by Celgene Corporation in 2012. Ms. Bosley served as President, Celgene Avilomics Research at Celgene in 2012. Prior to her time at Avila Therapeutics, Ms. Bosley was Vice President, Strategic Operations at Adnexus, a Bristol-Myers Squibb R&D Company, and was Vice President, Business Development at Adnexus Therapeutics, Inc. before that. Ms. Bosley joined Adnexus Therapeutics from Biogen Idec, Inc. where she had roles in business development, commercial operations and portfolio strategy in the United States and Europe. Ms. Bosley graduated from Cornell University with a B.A. in Biology. She served on the board of the Biotechnology Innovation Organization. Ms. Bosley currently serves on the boards of Genocea Biosciences, Inc., and of the Massachusetts Eye and Ear Institute. Ms. Bosley also serves as chairman of the board of Arrakis Therapeutics.

Mary Kerr, Ph.D. is non-executive director at our supervisory board since July 26, 2016 and Chief Executive Officer of NeRRe Therapeutics. She was Co-Founder and CEO of KaNDy Therapeutics until the company was acquired by Bayer in September 2020 for an upfront consideration of $425 million, potential development and regulatory milestone payments of up to $450 million, followed by potential additional triple digit million sales milestone payments. Before her career in Biotech, Kerr held a range of senior leadership roles at GSK over more than 20 years, including Senior Vice President and Global Franchise leader for the Immuno-inflammation and Infectious Diseases franchise. Mary was a founding member and on the Corporate Executive team of ViiV Healthcare. She has spent most of her career on the R&D commercial interface in global strategy and regional operational roles, predominantly in the specialty and orphan space. Dr. Kerr gained a Ph.D. in Pharmacology at the University of Bradford, did post-doctoral research at the Michigan Cancer Foundation in Detroit, and has an MBA from the University of Kingston.

Peter Guenter has served as a non-executive member of our supervisory board since April 30, 2019. Mr. Guenter is a member of the Executive Board of Merck KGaA and Chief Executive Officer of Healthcare since January 2021. Before joining Merck, he served as Chief Executive Officer of Almirall from 2017 to 2020. Prior to joining Almirall, he worked at Sanofi for 22 years, most recently as Executive Vice President Diabetes and Cardiovascular Global Business Unit. During his tenure at Sanofi, he held many senior positions including Vice President Eastern Europe and Northern Europe, Vice President Business Management and Support, General Manager Germany, Senior Vice President Europe, Executive Vice President Global Commercial Operations and Executive Vice President General Medicine and Emerging Markets. He was a member of Sanofi’s Executive Committee from 2013 till August 2017. Before joining Sanofi, he held different positions in sales and marketing at Smith Kline and Ciba Geigy. Mr. Guenter is currently also a member of the board of the European Federation of Pharmaceutical Industries and Associations (EFPIA). He is a Belgian citizen and holds a Master’s Degree in Physical Education from the Faculty of Medicine and Health Sciences, University of Ghent.

Daniel O’Day has served as a non-executive member of our supervisory board since October 22, 2019. Mr. O’Day is Chairman of the Board of Directors and Chief Executive Officer of Gilead Sciences, which employs more than 14,000 people worldwide. Prior to joining Gilead in 2019, Mr. O’Day served as the Chief Executive Officer of Roche Pharmaceuticals. His career at Roche spanned more than three decades, during which he held several executive positions in the company’s pharmaceutical and diagnostics divisions in North America, Europe and Asia.He served as a member

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of the company’s Corporate Executive Committee, as well as on a number of public and private boards, including Genentech, Flatiron Health and Foundation Medicine. Mr. O’Day currently serves on the board of directors of Pharmaceutical Research and Manufacturers of America Organization. Mr. O’Day is a U.S. citizen and holds a bachelor’s degree in biology from Georgetown University and an MBA from Columbia University in New York.

Linda Higgins, Ph.D. has served as a non-executive member of our supervisory board since October 22, 2019. Linda Slanec Higgins, Ph.D., joined Gilead Sciences, Inc. in 2010 and is currently Sr. Vice President Research, Strategy, Innovation & Portfolio. In her first ten years at Gilead she led Biology, significantly expanding the therapeutic area scope and capabilities of the department. She founded External Innovation as integral component for Research. She previously served as the President & CEO of InteKrin Therapeutics and as Head of Research at Scios, Inc., a Johnson & Johnson company, where she provided leadership for drug discovery, preclinical development, and translational medicine. Dr. Higgins is passionate about biopharmaceutical discovery and development, and has been dedicated to excellence in applied scientific research since 1991. She has led projects and departments in multiple therapeutic areas including CNS, fibrosis, inflammation, cardiovascular, virology, and oncology. Dr. Higgins built many of these as new areas at Scios and Gilead. Dr. Higgins is a U.S. citizen and earned an A.B. in Behavioral Physiology from Kenyon College, a Ph.D. in Neurosciences from the University of California, San Diego School of Medicine, and completed postdoctoral training in Molecular Genetics at the Howard Hughes Medical Institute at the University of California, Berkeley. She has authored over 50 original peer reviewed scientific papers and invited reviews and is an inventor on over a dozen patents. Dr. Higgins serves as a non-executive director on the board of Arcus Biosciences, Inc and Tizona Theraepeutics, Inc.

Elisabeth Svanberg, MD, Ph.D. has served as a non-executive member of our supervisory board since April 28, 2020. Dr. Svanberg received her MD and PhD from the University of Gothenburg, Sweden and is a board certified general surgeon and associate professor of surgery. She joined Serono International in 2000, initially in the field of metabolism and subsequently held roles of increasing responsibilities before joining Bristol Myers Squibb (BMS) in the United States in 2007. At BMS, Dr. Svanberg served as development leader for a first in class novel diabetes medicine and subsequently as Head of Medical Affairs for the Intercontinental region. In 2014, Dr. Svanberg joined Janssen Pharmaceuticals (a Johnson & Johnson Company) as Vice President, Head of the Established Products group, managing a portfolio of 90 products, used by an estimated 150 million patients globally. Since 2016, Dr. Svanberg serves as the Chief Development Officer at Ixaltis SA and since 2020 as Chief Medical Officer at Kuste Biopharma, specialty pharmaceutical companies developing proprietary therapeutics to treat genitourinary (GU) disorders with unmet medical need. Dr. Svanberg serves as a non-executive director on the board of Egetis AB (formerly PledPharma) (since 2017) and Swedish Orphan Biovitrum (SOBI, since 2018), Pharnext SA (since 2020) and Amolyt Pharma SAS (since 2021).

Jérôme Contamine, has been nominated by our nomination and remuneration committee to join our board of directors as a non-executive director subject to shareholder’s approval at the annual shareholders’ meeting to be held on April 26, 2022. Mr. Jérôme Contamine served as Chief Financial Officer of Sanofi for more than nine years from 2009 until 2018. Prior to joining Sanofi, he was Chief Financial Officer of VEOLIA from 2000 to 2009. He previously held various operating functions at Total and served four years as an auditor at the French Cour des Comptes (the supreme body responsible for auditing the use of public funds in France). Mr. Jérôme Contamine is a graduate of France’s École polytechnique, ENSAE (École Nationale de la Statistique et de l’Administration Économique) and École nationale d’administration. He held the position of non-executive director at Valeo from 2006 to 2017. Mr. Jérôme Contamine currently serves as a non-executive director on the boards of Société Générale and Total Energies.

Paul Stoffels¹, MD has been nominated by our nomination and remuneration committee to join our board of directors as an executive director, subject to shareholder’s approval at the annual shareholders’ meeting to be held on April 26, 2022. Dr. Stoffels has studied Medicine at the University of Diepenbeek and the University of Antwerp (both in Belgium) and Infectious Diseases and Tropical Medicine at the Institute of Tropical Medicine in Antwerp (Belgium). Until 2021, Dr. Stoffels was Vice Chairman of the Executive Committee and Chief Scientific Officer of Johnson & Johnson, setting the company wide innovation agenda, leading the pharmaceutical research and product pipeline as well as the external innovation initiatives. Prior to that, he was worldwide Chairman Pharmaceuticals of Johnson & Johnson, which significantly rejuvenated its product pipeline and adopted a transformational R&D operating model, resulting in the launch of 25 innovative medicines across the globe. Dr. Stoffels joined Johnson & Johnson in 2002, with the acquisition of Virco and Tibotec, where he was CEO, respectively Chairman, and led the development of several breakthrough products for the treatment of HIV. Dr. Stoffels currently serves as member of the supervisory board of

¹ Stoffels IMC BV, permanently represented by Dr. Paul Stoffels.

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Koninklijke Philips NV. Dr. Stoffels was already a member of the board of directors of Galapagos NV from its incorporation until 2002.

Daniel G. Baker, MD has been nominated by our nomination and remuneration committee to join our board of directors as a non-executive director, subject to shareholder’s approval at the annual shareholders’ meeting to be held on April 26, 2022. Dr Baker joined Janssen/Centocor in 2000 and as Vice President Immunology R&D at Janssen, his responsibilities included the clinical development of Remicade, SIMPONI and STELARA as well as other programs in rheumatology, and dermatology. He supervised many Phase I-III trials in multiple disease areas, and oversaw more than 15 regulatory approvals in the US, Europe and Japan. Throughout he was responsible for evaluating business development opportunities in the immunology space. In 2015 he took on a new role as Disease Area Stronghold Leader at Janssen where he was responsible for Phase II & III clinical development plans for rheumatology products and for the overall portfolio strategy in rheumatology/immunology. This included the early research strategy for immunology discovery, managing the early portfolio development, and approving all late-stage efforts. After his retirement from Janssen in 2019 he has continued to be involved in bringing therapies to patients. He raised capital (>20MM) to fund and start an immunology company (KiRA Biotech) where he now acts as CEO and as an Executive Director. Dan Baker received his B.A. in Biology from Gettysburg College and his medical degree from the University of Pennsylvania. He completed his medical residency at Hershey Medical Center and fellowship in Rheumatology/Immunology at the University of Pennsylvania, followed by a research fellowship in Rheumatology at Mass General Hospital. He continued on the faculty of the University of Pennsylvania for 18 years before taking on industry roles.

Pursuant to the new Nasdaq Stock Market Listing Rule and US Securities Exchange Act requirements, we disclose aggregated statistical information about the supervisory board’s voluntary self-identified gender and racial characteristics and LGBTQ+ status for 2021. Diverse means an individual who self-identifies as one or more of the following: Female, LGBTQ+, or an underrepresented individual based on national, racial, ethnic, indigenous, cultural, religious or linguistic identity in the country of the Company’s principal executive offices.

Supervisory Board Diversity Matrix (As of March 15, 2022)
Country of Principal Executive Offices	Belgium
Foreign Private Issuer	Yes
Disclosure prohibited under Home Country Law	No
Total number of supervisory board members	8
	Female	Male		Non-binary	Did not disclose gender
Part I: Gender Identity
Directors (supervisory board members)	4	4		0	0
Part II: Demographic Background
Underrepresented individual in Home Country Jurisdiction			0
LGBTQ+			0
Did not disclose demographic background			0

As a foreign private issuer, under the listing requirements and rules of Nasdaq, we satisfy the board diversity requirement with two female directors. We have four female and four male supervisory board members.

Management board

As of April 28, 2020 Galapagos has a two-tier governance structure as provided for by the Belgian Companies Code, with the supervisory board replacing the board of directors, and the management board replacing the executive committee.

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The following table sets forth certain information with respect to the members of our management board as of December 31, 2021:

Name	Age	Position(s)
Onno van de Stolpe	62	Chief Executive Officer
Bart Filius, MBA	51	President, Chief Financial Officer & Chief Operating Officer
Piet Wigerinck, Ph.D. (1)	57	Chief Scientific Officer
Andre Hoekema, Ph.D.	64	Chief Business Officer
Walid Abi-Saab, MD	56	Chief Medical Officer
Michele Manto	48	Chief Commercial Officer
(1) Management board member until November 30, 2021.

The address for the members of our management board is Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium.

There is no potential conflict of interest between the private interests or other duties of the members of the management board listed above and their duties to us.

Dr. Wigerinck, our former Chief Scientific Officer, left Galapagos and was a management board member until November 30, 2021.

We announced that Stoffels IMC BV, permanently represented by Dr. Stoffels, will become our Chief Executive Officer effective April 1, 2022.

Below are the biographies of the members of our management board:

Onno van de Stolpe founded our company in 1999 and has served as our Chief Executive Officer from 1999 to the present. On August 30, 2021 Galapagos announced his planned retirement as CEO and Dr. Paul Stoffels (acting via Stoffels IMC BV) will fully take over as CEO effective April 1, 2022. Onno van de Stolpe will execute a purely advisory role as advisor of the management board. Onno van de Stolpe served as a member of our board of directors from 1999 until his mandate ended on April 28, 2020. From 1998 to 1999, he was the Managing Director of Genomics at IntroGene BV (later Crucell NV, which was acquired by Johnson & Johnson Services, Inc. in 2011). Prior to joining IntroGene in 1998, he was Managing Director of Molecular Probes Europe BV. He established the European headquarters after joining Molecular Probes, Inc. in the United States. Previously, he worked for The Netherlands Foreign Investment Agency in California, where he was responsible for recruiting biotechnology and medical device companies to locate in the Netherlands. Mr. Van de Stolpe started his career as Manager of Business Development at MOGEN International NV in Leiden. He received an MSc degree from Wageningen University. Mr. Van de Stolpe has previously served as a member of the board of directors of DCPrime BV and as a member of the supervisory board of the Stichting Institute for Human Organ and Disease Model Technologies. In September 2020, he was elected as non-executive member of the supervisory board of Leyden Labs and since March 2021 he is a non-executive member of the board of directors of European Biotech Acquisition Corp (EBAC).

Bart Filius, MBA was appointed President of Galapagos in February 2021 and has served as our Chief Financial Officer since December 2014 and as our Chief Operating Officer since September 2017. Prior to that, Mr. Filius worked over 13 years at Sanofi SA, where he was the Chief Financial Officer of Sanofi Europe during the last three years. Earlier at Sanofi, Mr. Filius was the Country Manager and Chief Financial Officer of Sanofi in the Netherlands. Before that, he was Vice President for Mergers & Acquisitions, during which time Mr. Filius led and completed the divestiture of various franchises. Prior to joining Sanofi, he was a strategy consultant at Arthur D. Little. Mr. Filius has an MBA degree from INSEAD and a bachelor’s degree in business from Nyenrode Business University. In May 2019, Mr. Filius was elected as non-executive director in the supervisory board of ProQR Therapeuthics NV.

Andre Hoekema, Ph.D. is responsible for M&A, licensing and Intellectual Property at Galapagos as our Chief Business Officer. He joined Galapagos in March 2005 from Invitrogen Corporation, where he was Managing Director of Corporate Development Europe. He brings 20 years of biotech experience from positions at Molecular Probes Europe BV (Managing Director), Crucell NV (Director of Business Development), DSM Life Sciences NV and Syngenta MOGEN BV (Research and Project Management) and Genentech, Inc. (R&D). Dr. Hoekema has a Ph.D. degree from

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Leiden University and is the inventor of over 20 series of patent applications, resulting in 15 patents issued in the United States. Dr. Hoekema currently also serves as a member of the supervisory board of Mimetas BV and has previously served as a member of the supervisory board of VitalNext BV.

Walid Abi-Saab, MD joined Galapagos as Chief Medical Officer in March 2017. Dr. Abi-Saab drives the overall medical strategy of the company and is responsible for late stage clinical development and operations, medical and regulatory affairs, and safety. As of June 2021, he became responsible for all development activities as he added early-stage development activities to his already existing responsibilities for late-stage development. As of December 2021, Dr. Abi-Saab took on ad interim responsibility for the Research Organization. Previously, Dr. Abi-Saab worked at Shire AG where he held various clinical development leadership roles, most recently as Group Vice President, Global Clinical Development - Therapeutic Area Head, Gastro-intestinal, Endocrinology and Metabolism. Prior to that, he led clinical development activities at Novartis Pharma AG, Abbott Laboratories Inc. and Pfizer Inc., addressing a wide range of therapeutic areas and leading teams throughout the clinical development process. Under his leadership, more than 30 molecules have advanced through clinical development leading to several approvals in the United States, the EU and Canada. Prior to his pharma roles, Dr. Abi-Saab was Assistant Professor of Psychiatry and Neurosurgery at Yale University Medical School, where he headed their Schizophrenia Research at the Clinical Neuroscience Research Unit and the Neurosurgery Epilepsy Microdialysis Research Program. Dr. Abi-Saab holds an M.D. degree from Université Saint Joseph in Beirut, Lebanon.

Michele Manto, MBA has been appointed as Chief Commercial Officer in January 2020. He joined Galapagos in September 2017 as Senior Vice President Commercial Operations to build and lead Galapagos’ commercial organization and capabilities. Previously, Mr. Manto held various commercial leadership roles at AbbVie, most recently as General Manager, Global Marketing Rheumatology and as General Manager in the Netherlands. Prior to this, he led AbbVie’s commercial activities and launches in rheumatology, gastroenterology and dermatology in Germany and other European countries. He started his professional career as a management and strategy consultant at McKinsey & Company. Mr. Manto holds an MBA from INSEAD and a degree in engineering from the Politecnico of Milan.

Paul Stoffels², has been appointed as Chief Executive Officer effective April 1, 2022. Dr. Stoffels has studied Medicine at the University of Diepenbeek and the University of Antwerp (both in Belgium) and Infectious Diseases and Tropical Medicine at the Institute of Tropical Medicine in Antwerp (Belgium). Until 2021, Dr. Stoffels was Vice Chairman of the Executive Committee and Chief Scientific Officer of Johnson & Johnson, setting the company wide innovation agenda, leading the pharmaceutical research and product pipeline as well as the external innovation initiatives. Prior to that, he was worldwide Chairman Pharmaceuticals of Johnson & Johnson, which significantly rejuvenated its product pipeline and adopted a transformational R&D operating model, resulting in the launch of 25 innovative medicines across the globe. Dr. Stoffels joined Johnson & Johnson in 2002, with the acquisition of Virco and Tibotec, where he was CEO, respectively Chairman, and led the development of several breakthrough products for the treatment of HIV. Dr. Stoffels currently serves as member of the supervisory board of Koninklijke Philips NV. Dr. Stoffels was already a member of the board of directors of Galapagos NV from its incorporation until 2002.

Under the Belgian Companies Code, the management board exercises all acts necessary or useful to the realization of the company’s corporate object, except for those which are reserved to the supervisory board according to legal requirements, articles of association or the corporate governance charter of the company. This means that the management board is exclusively empowered for the operational functioning of the company and has all residual powers.

The tasks of the management board include the following matters: the research, identification and development of strategic possibilities and proposals which may contribute to our company’s development in general, management of the group, the supervision of the performance of the business in comparison with the strategic goals, plans and budgets, and the support of the Chief Executive Officer with the day-to-day management of our company.

The management board meets regularly, and in principle once per month.

Family relationships

There are no family relationships among any of the members of our management board or supervisory board.

² Stoffels IMC BV, permanently represented by Mr. Paul Stoffels

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B.     Compensation

The aggregate compensation paid and benefits in kind granted by us to our current members of the management board and supervisory board, excluding share-based compensation, for the year ended December 31, 2021, was €4,632,904.33. For the year ended December 31, 2021, the total amounts set aside or accrued to provide pension, retirement or similar benefits to our management board amounted to €399,459.44.

For a discussion of our management agreements with the management board members and consulting arrangement with our supervisory board members, see the section of this annual report titled “Item 7.B.—Related Party Transactions.— Agreements with Our Supervisory Board Members and Management Board Members.” For more information regarding subscription right grants, see “—Subscription Right Plans” below and regarding RSU grants, see “RSU Plans” below.

Compensation of our supervisory board

The remuneration of our supervisory board members is submitted by our supervisory board for approval to the shareholders’ meeting and is only implemented after such approval. The procedure for establishing the remuneration policy and setting remuneration for members of our supervisory board is determined by our supervisory board on the basis of proposals from the nomination and remuneration committee, taking into account relevant benchmarks from the biotechnology industry. In 2020, pursuant to the expected implementation in Belgium of the Directive (EU) 2017/828 of the European Parliament and of the Council of 17 May 2017 amending Directive 2007/36/EC as regards the encouragement of long-term shareholder engagement, or SRD II, the remuneration policy has been submitted to a binding vote of our 2020 shareholders’ meeting and has been approved during this shareholders’ meeting. On May 6, 2020, the Belgian Act of 28 April 2020 transposing the SRD II into Belgian law was published in the Belgian Official Journal. The policy became effective as of January 1, 2020 and applies for the reporting year beginning on January 1, 2021.

In light of the proposed introduction of a one-tier governance structure at the occasion of the extraordinary shareholders’ meeting to be held on April 26, 2022, the supervisory board invites our shareholders to approve a revised remuneration policy, applying for the reporting year beginning on January 1, 2022.

The annual shareholders’ meeting of April 28, 2020 determined, upon recommendation of the nomination and remuneration committee, that the compensation (excluding expenses) of the supervisory board members, other than the supervisory board members representing a shareholder, for the exercise of their mandate during the financial year ending December 31, 2021 is as follows:

(a) cash remuneration: (i) Chairman of the supervisory board (i.e. Raj Parekh): €100,000; (ii) other non-executive supervisory board members (i.e. Howard Rowe, Katrine Bosley, Mary Kerr, Peter Guenter, and Elisabeth Svanberg): €50,000 each; (iii) annual additional compensation for membership of a board committee (audit committee: Mary Kerr and Peter Guenter; nomination and remuneration committee: Katrine Bosley and Elisabeth Svanberg): €15,000; (iv) annual additional compensation for the chairmanship of a board committee (audit committee: Howard Rowe; nomination and remuneration committee: Rajesh Parekh): €20,000;

(b) equity-based remuneration: (i) chairman of the supervisory board (i.e. Raj Parekh): €100,000; (ii) other non-executive supervisory board members (i.e. Howard Rowe, Katrine Bosley, Mary Kerr, Peter Guenter, and Elisabeth Svanberg): €50,000 each; in each case (i) and (ii) subject to the requirement to use the net amount (after taxes) to acquire Galapagos shares. These latter payments make up the equivalent of an equity component of the supervisory board members’ remuneration and the resulting shares are to be held until at least one year after the supervisory board members leaves the supervisory board and at least three years after the time of acquisition. During the financial year 2021, one management board member waived the equity-related remuneration.

The same 2020 annual shareholders’ meeting resolved that the mandate of a supervisory board member representing a shareholder on the supervisory board will not be remunerated (i.e. Daniel O’Day and Linda Higgins).

The remuneration of the supervisory board members does not contain a variable part; hence no performance criteria apply to their remuneration.

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The following table sets forth the fees (excluding expenses) received by our supervisory board members for the performance of their mandate as a supervisory board member, during the year ended December 31, 2021:

		Supervisory board							Audit committee				Nomination and remuneration committee
		Cash remuneration				Equity-based remuneration
		Chairman		Member		Cash (gross amount)	Acquired		Chairman		Member		Chairman		Member
		Fees earned		Fees earned		granted to acquire	GLPG		Fees earned		Fees earned		Fees earned		Fees earned
Name		(Euro)		(Euro)		GLPG shares (1)	shares (1)		(Euro)		(Euro)		(Euro)		(Euro)
Dr. Rajesh Parekh	€	100,000			€	100,000	1,026					€	20,000
Mr. Howard Rowe			€	50,000		50,000	512	€	20,000
Ms. Katrine Bosley (2)				50,000		-	-							€	15,000
Dr. Mary Kerr				50,000		50,000	512			€	15,000
Mr. Peter Guenter				50,000		50,000	522				15,000
Dr. Elisabeth Svanberg				50,000		50,000	522								15,000
Mr. Daniel O’Day (3)
Dr. Linda Higgins (3)
Total	€	100,000	€	250,000	€	300,000		€	20,000	€	30,000	€	20,000	€	30,000
(1) The company grants a gross amount equal to the respective supervisory board member’s annual cash remuneration, to use the net portion (after taxes) to acquire shares of Galapagos in the open market.
(2) Ms. Bosley waived her equity-related remuneration for financial year 2021.
(3) Mr. O’Day and Dr. Higgins, both Gilead representatives, do not receive any remuneration for their mandate as supervisory board members.

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The table below provides an overview as of December 31, 2021 of the subscription rights held by the supervisory board members. Upon recommendation of our nomination and remuneration committee, the board of directors decided in February 2020 to discontinue the grant of subscription rights to supervisory board members going forward.

	Subscription right award
					Subscription	Number of ordinary	Number of	Number of
		Grant	Vesting	Subscription right	right	shares underlying	subscription rights	subscription rights
	Plan	date	period	exercise	expiration	subscription rights	exercisable	exercised
Name				price (Euro)	date	per Dec. 31, 2021	per Dec. 31, 2021	during 2021
Raj Parekh	WP 2017	8/30/2017	36 months	80.57	5/16/2025	15,000	15,000
	WP 2018	6/18/2018	1/36 per	79.88	4/18/2026	15,000
	WP 2019	07/12/2019	month	95.11	04/10/2027	15,000
Total						45,000		—
Howard Rowe	WP 2014	10/14/2014		14.54	7/24/2022	2,520	2,520
	WP 2015	6/29/2015		28.75	4/29/2023	2,520	2,520
	WP 2015.B	03/02/2016	36 months	49.00	12/21/2023	7,500	7,500
	WP 2016	7/31/2016	1/36 per	46.10	5/31/2024	7,500	7,500
	WP 2017	8/30/2017	month	80.57	5/16/2025	7,500	7,500
	WP 2018	6/18/2018		79.88	4/18/2026	7,500
	WP 2019	07/12/2019		95.11	04/10/2027	7,500
Total						42,540		—
Katrine Bosley	WP 2015	6/29/2015		28.75	4/29/2023	2,520	2,520
	WP 2015.B	03/02/2016	36 months	49.00	12/21/2023	7,500	7,500
	WP 2016	7/31/2016	1/36 per	46.10	5/31/2024	7,500	7,500
	WP 2017	8/30/2017	month	80.57	5/16/2025	7,500	7,500
	WP 2018	6/18/2018		79.88	4/18/2026	7,500
	WP 2019	07/12/2019		95.11	04/10/2027	7,500
Total						40,020		—
Mary Kerr	WP 2017	8/30/2017	36 months	80.57	5/16/2025	7,500	7,500
	WP 2018	6/18/2018	1/36 per	79.88	4/18/2026	7,500
	WP 2019	07/12/2019	month	95.11	04/10/2027	7,500
Total						22,500		—
Peter Guenter	WP 2019	07/12/2019	36 months	95.11	04/10/2027	7,500
			1/36 per
			month
Total						7,500		—
Elisabeth Svanberg	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Daniel O'Day	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Linda Higgins	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A

No loans, quasi-loans or other guarantees were given to the supervisory board members during the year ended December 31, 2021.

Compensation of members of the management board

The compensation of the members of our management board is determined by our supervisory board based on the recommendations by our nomination and remuneration committee.

The remuneration of the members of our management board consists of different components:

● Fixed remuneration: a basic fixed fee designed to fit responsibilities, relevant experience and competences, in line with market rates for equivalent positions. The amount of fixed remuneration is evaluated and determined by the supervisory board every year, upon recommendation of the nomination and remuneration committee.

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● Variable remuneration (short-term): members of the management board may be entitled to a bonus. The award of a bonus is merit-driven and based on the group’s performance management system that is based on annual individual performance (including exceptional deliverables) in combination with our overall performance, compared to the level of achievement of individual and corporate objectives that are established annually. As from the year that ended December 31, 2019, the maximum short-term cash bonus of the chief executive officer is set at 75% of his yearly fixed cash salary. The actual bonus of the chief executive officer is determined by our supervisory board, upon recommendation of the nomination and remuneration committee, and is based on the achievement of corporate and individual objectives. The maximum aggregate bonus pot for the other members of the management board is set at 50% of their combined fixed cash salaries for the short-term cash bonus. The actual bonuses of these other management board members are determined by our supervisory board, upon recommendation of the nomination and remuneration committee, and are based on the achievement of corporate and individual objectives. In addition, exceptional special bonuses, outside the scope of the regular bonus schemes, can be considered by the supervisory board, upon recommendation of the nomination and remuneration committee, in the event of and for exceptional achievements.

● Incentive plans (long-term): as from the year that ended December 31, 2019, the chief executive officer is eligible to receive up to the equivalent number of restricted stock units, or RSUs, to 75% of the fixed part of his annual remuneration, and the other members of the management board are eligible to receive up to the equivalent number of RSUs to 50% of the total amount of the fixed part of their aggregate annual remuneration as an annual long term incentive. They may receive additional RSUs under other RSU plans that were put in place. For a description of the main characteristics of our RSU plans for management board members, see “RSU Plans” below. In addition, subscription rights have been granted and may be granted in the future to the members of the management board. For a description of the main characteristics of our subscription right plans, see “Subscription Right Plans” below.

● Other: pension, company car, insurances, tax advisory services and payments for invalidity and healthcare cover and other fringe benefits of non-material value.

No loans, quasi-loans or other guarantees were given to members of our management board during the year ended December 31, 2021.

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The following table sets forth information concerning the compensation earned by the management board members, during the year ended December 31, 2021:

		(Euro)
	Fixed remuneration						Variable remuneration						Total
Management board member		Base salary		Other components (1)		Pension		One-year variable (2)		Multi-year variable			remuneration
										Vested RSUs (3)		Granted SRs (4)
Onno van de Stolpe (5)	€	636,000	€	164,314	€	93,600	€	360,000	€	1,074,336	€	—	€	2,328,250
Bart Filius		480,500		27,565		63,300		215,906		867,162		—		1,654,433
Andre Hoekema		377,250		29,572		55,350		92,531		383,622		—		938,325
Piet Wigerinck (6)		387,333		14,994		57,200		194,792		713,686		—		1,368,005
Walid Abi-Saab		422,750		15,874		62,400		154,219		713,686		—		1,368,929
Michele Manto (7)	€	336,250	€	218,835	€	48,750	€	154,219	€	173,444	€	—	€	931,498
(1) Other components are the value of the benefits and perquisites awarded, such as a company car, tax advisory services, health and disablity insurance and work from home allowance.
(2) The one-year variable is the short-term bonus awarded to each management board member in respect of 2021 and paid in April 2022, except for Piet Wigerinck the 2021 bonus (pro rata) has been paid in December 2021 following his departure.
(3) During financial year 2021 RSUs vested under RSU Plan 2019.II, 2019.III and 2020.II and pay-outs occurred accordingly.
(4) The value of the subscription rights ("SRs") granted during the financial year 2021 is calculated by comparing the exercise price with the average share price of the share as quoted on Euronext Brussels and Amsterdam during the financial year 2021.
(5) Mr. Onno van de Stolpe's base salary is €636,000, including €18,859.44 in the form of personal pension contributions. The €93,600 pension amount does not include the amount of €18,859.44, which is part of Mr. Onno van de Stolpe's fixed base salary. The other components figure principally includes tax advisory fees.
(6) Management board member until November 30, 2021. His exit package is set out under section 'Severance clauses and payments'.
(7) Mr. Manto’s other components figure includes one-time compensation in relation to an adverse change in personal taxation basis. This change was brought about by Galapagos’ decision for Mr Manto’s services to be provided under a management agreement with Galapagos from January 1, 2020, in compliance with newly introduced Belgian Code and the introduction of the two-tier governance model.

The total remuneration table above sets forth the value of the number of RSUs vested and paid out in 2021 for each management board member. Each RSU represents the right to receive, at Galapagos’ discretion, one Galapagos share or a payment in cash of an amount equivalent to the volume-weighted average price of the Galapagos share on Euronext Brussels over the 30-calendar day period preceding the relevant vesting date. However, for management board members, any vesting prior to the third anniversary of the offer date will always give rise to a payment in cash rather than a delivery of shares as an incentive. During 2021, there were RSU vestings under three different RSU Plans: RSU Plan 2019.II, Plan 2019.III and Plan 2020.II. The pay-outs to the management board members occurred accordingly and the aggregate amounts are set forth in the total remuneration table above.

Subscription rights

In addition, the management board members in office during the year ended December 31, 2021, were granted (and accepted) subscription rights : Mr. van de Stolpe (85,000 subscription rights), Mr. Filius (50,000 subscription rights), Dr. Wigerinck (40,000 subscription rights), Dr. Walid Abi-Saab (40,000 subscription rights), Dr. Hoekema (30,000 subscription rights), and Mr. Manto (30,000 subscription rights) under Subscription Right Plan 2021 BE. The exercise price of these subscription rights is €64.76. For all the beneficiaries under the Subscription Right Plan 2021 BE, the subscription rights vest only and fully on the first day of the fourth calendar year following the calendar year in which the grant was made. These subscription rights are exercisable as from January 1, 2025.

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The table below provides an overview as of December 31, 2021 of the subscription rights held by, awarded to and exercised by the members of our management board in office during the year ended December 31, 2021.

	Subscription rights awarded
						Number of	Subscription rights exercised
				Subscription rights		ordinary shares	Number of	Number of	Number of
				exercise	Subscription rights	underlying	subscription	subscription	subscription
				price	expiration	subscription rights	rights exercisable	rights awarded	rights exercised
Name	Plan	Grant date	Vesting period	(Euro)	date	Per Dec 31, 2021	per Dec 31, 2021	during 2021	per Dec 31, 2021
Onno van de Stolpe	Warrant Plan 2013	07/29/2013		19.38	05/15/2021	—	—		41,874
	WP 2014	10/14/2014	36 months	14.54	7/24/2022	100,000	100,000
	WP 2015	6/29/2015	1/36 per	28.75	4/29/2023	100,000	100,000
	WP 2015.B	03/02/2016	month	49.00	12/21/2023	100,000	100,000
	WP 2016	7/31/2016		46.10	5/31/2024	100,000	100,000
	WP 2017	8/30/2017		80.57	5/16/2025	100,000	100,000
	WP 2018	6/18/2018		79.88	4/18/2026	100,000
	WP 2019	07/12/2019		95.11	04/10/2027	100,000
	Subscription Right Plan 2020	6/16/2020	100% 3rd year after year of grant 01/01/2024	168.42	4/17/2028	85,000
	SR Plan 2021 BE	07/02/2021	100% 3rd year after year of grant 01/01/2025	64.76	4/30/2029	85,000		85,000
Total						870,000	500,000	85,000	41,874
Bart Filius	WP 2017	8/30/2017		80.57	5/16/2025	60,000	60,000
	WP 2018	6/18/2018	100% 3rd year ​	79.88	4/18/2026	80,000
	WP 2019	07/12/2019	after year of	95.11	04/10/2027	65,000
	SR Plan 2020	6/16/2020	grant	168.42	4/17/2028	50,000
	SR Plan 2021 BE	07/02/2021		64.76	4/30/2029	50,000		50,000
Total						305,000	60,000	50,000	—
Piet Wigerinck	WP 2015.B	03/02/2016		49.00	12/21/2023	35,000	35,000		5,000
	WP 2016	7/31/2016	100% 3rd year ​	46.10	5/31/2024	60,000	60,000
	WP 2017	8/30/2017	after year of	80.57	5/16/2025	60,000	60,000
	WP 2018	6/18/2018	grant	79.88	4/18/2026	60,000
	WP 2019	07/12/2019		95.11	04/10/2027	50,000
	SR Plan 2020	6/16/2020		168.42	4/17/2028	40,000
	SR Plan 2021 BE	07/02/2021		64.76	4/30/2029	40,000		40,000
Total						345,000	155,000	40,000	5,000
Andre Hoekema	WP 2014	10/14/2014		14.54	7/24/2022	10,000	10,000		20,000
	WP 2015	6/29/2015		28.75	4/29/2023	30,000	30,000
	WP 2015.B	03/02/2016	100% 3rd year ​	49.00	12/21/2023	40,000	40,000
	WP 2016	7/31/2016	after year of	46.10	5/31/2024	55,000	55,000
	WP 2017	8/30/2017	grant	80.57	5/16/2025	60,000	60,000
	WP 2018	6/18/2018		79.88	4/18/2026	50,000
	WP 2019	07/12/2019		95.11	04/10/2027	50,000
	SR Plan 2020	6/16/2020		168.42	4/17/2028	30,000
	SR Plan 2021 BE	07/02/2021		64.76	4/30/2029	30,000		30,000
Total						355,000	195,000	30,000	20,000
Walid Abi-Saab	WP 2016 (B)	04/06/2017		62.50	1/19/2025	10,000	10,000
	WP 2017	8/30/2017	100% 3rd year ​	80.57	5/16/2025	45,000	45,000
	WP 2018	6/18/2018	after year of	79.88	4/18/2026	60,000
	WP 2019	07/12/2019	grant	95.11	04/10/2027	50,000
	SR Plan 2020	6/16/2020		168.42	4/17/2028	40,000
	SR Plan 2021 BE	07/02/2021		64.76	4/30/2029	40,000		40,000
Total						245,000	55,000	40,000	—
Michele Manto	WP 2017	8/30/2017		80.57	5/16/2025	60,000	60,000
	WP 2018	6/18/2018	100% 3rd year ​	79.88	4/18/2026	30,000
	WP 2019	07/12/2019	after year of	95.11	04/10/2027	40,000
	SR Plan 2020	6/16/2020	grant	168.42	4/17/2028	30,000
	SR Plan 2021 BE	07/02/2021		64.76	4/30/2029	30,000		30,000
Total						190,000	60,000	30,000	—

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RSU plans

Upon recommendation of the nomination and remuneration committee, the board of directors (now our supervisory board) has updated the remuneration policy to also include the grant of RSUs as a long-term incentive for the members of the management board, starting from the year ended on December 31, 2019.

We currently have the following restricted stock unit (RSU) programs:

• Plan 2020.I and Plan 2021.I, under which the grants are intended to be made every year, subject to a decision of the supervisory board. This plan is intended to provide a long-term incentive to certain of our employees and management board members and replaces the deferred portion of the bonus under the old Senior Management Bonus Scheme;

• Plan 2019.II, 2020.II, Plan 2021.II and Plan 2021 IV - These plans are aimed at retaining a specific set of our employees and management board members whose retention is deemed so important for the future performance of Galapagos that an additional incentive is desired. The beneficiaries are nominated by the nomination and remuneration committee and the supervisory board approves the list of beneficiaries. The four-year vesting period is designed to be aligned with long-term shareholder interests;

• Plan 2019.I – Grants under this plan were maded in 2019 only on the basis of a decision of the board of directors (existing at that time, now known as the supervisory board), as previously announced. No new grants under this plan will be made;

• Plan 2019.III – This exceptional RSU grant took place in 2019 under an RSU Transaction Bonus Plan for the successful closing of the Gilead transaction; and

• Plan 2021.III - This plan is intended to compensate employees who transferred from Gilead to Galapagos in the framework of the transfer of European commercialization rights for the long-term incentive plans within Gilead under which unvested RSU awards lapse upon transfer out of the Gilead group. These employees received an RSU grant from Galapagos.

The RSU plans are intended to provide certain members of the management board and certain employees of Galapagos the opportunity to receive RSUs as an incentive. Their purpose is to retain and encourage participants to contribute to the performance of Galapagos and its affiliates by aligning their financial interests with those of the shareholders.

The main characteristics of these plans are as follows:

• The RSUs are offered for no consideration;

• Three or four year vesting periods apply, as set forth per plan in the table below;

• Each RSU reflects the value of one Galapagos share and payout will be in cash or shares, at Galapagos’ discretion, it being understood that in respect of members of the management board, any vesting prior to the third anniversary of the offer date will always give rise to a payment in cash rather than a delivery of shares as an incentive; and

• In case of termination of service before the vesting date, bad and good leaver rules apply.

In 2021, the management board were offered new restricted stock units (‘RSUs’) under 2021 RSU Annual Long-Term Incentive Plan and the 2021 RSU Retention Plan, subject to acceptance. The members of the management board accepted all RSUs offered to them, except two management board members did not accept their grant under the 2021 RSU Annual Long-Term Incentive Plan. The first RSU grant will vest in full three years after the offer date. The second RSU grant has a four-year vesting period, with 25% vesting each year and a first vesting date on May 1, 2022. The RSUs are not transferable. The table below sets forth the number of RSUs offered to each management board member in 2021, including for our former CSO Dr. Wigerinck: Mr. Onno van de Stolpe: 63,830 RSUs, Mr. Bart Filius: 62,730 RSUs, Dr.

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Piet Wigerinck: 835 RSUs, Dr. Walid Abi-Saab: 44,038 RSUs, Dr. Andre Hoekema: 52,312 RSUs and Mr. Michele Manto: 31,694 RSUs.

No RSUs expired during the year ended December 31, 2021. The table below sets out the main characteristics of RSU plans issued to the management board members during 2019, 2020 and 2021, the RSUs awarded to each management board member under the respective RSU Plan and vested for and paid out to each management board member during 2021:

Name	Plan	Grant date	Vesting period	Vesting date	Number of RSUs granted		Number of RSUs vested during 2021
Onno van de Stolpe	Plan 2019.I	10/16/2019	100% three years after offer date	10/16/2022	15,000
	Plan 2019.II	10/16/2019	25%/year	05/01/2020	25,606
			Four-year vesting period	05/01/2021			6,401
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two year after offer date	10/16/2021	16,922		8,461
			50% three years after offer date	10/16/2022
	Plan 2020.I	05/06/2020	100% three years after offer date	05/06/2023	2,392
	Plan 2020.II	05/06/2020	25%/year	05/01/2021	15,925		3,981
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
	Plan 2021.I	05/05/2021	100% three years after offer date	05/05/2024	2,111
	Plan 2021.IV	05/05/2021	25%/year	05/01/2022	61,719
			Four-year vesting period	05/01/2023
				05/01/2024
				05/01/2025
Total					139,675		18,843
Bart Filius	Plan 2019.I	10/16/2019	100% three years after offer date	10/16/2022	5,000
	Plan 2019.II	10/16/2019	25%/year	05/01/2020	17,924
			Four-year vesting period	05/01/2021			4,481
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two year after offer date	10/16/2021	16,922		8,461
			50% three years after offer date	10/16/2022
	Plan 2020.I	05/06/2020	100% three years after offer date	05/06/2023	1,452
	Plan 2020.II	05/06/2020	25%/year	05/01/2021	11,148		2,787
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
	Plan 2021.I	05/05/2021	100% three years after offer date	05/05/2024	1,011
	Plan 2021.IV	05/05/2021	25%/year	05/01/2022	61,719
			Four-year vesting period	05/01/2023
				05/01/2024
				05/01/2025
Total					115,176		15,729
Piet Wigerinck	Plan 2019.I	10/16/2019	100% three years after offer date	10/16/2022	5,000
	Plan 2019.II	10/16/2019	25%/year	05/01/2020	17,924
			Four-year vesting period	05/01/2021			4,481
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two year after offer date	10/16/2021	10,153		5,076
			50% three years after offer date	10/16/2022
	Plan 2020.I	05/06/2020	100% three years after offer date	05/06/2023	932
	Plan 2020.II	05/06/2020	25%/year	05/01/2021	11,148		2,787
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
	Plan 2021.I	05/05/2021	100% three years after offer date	05/05/2024	835	(1)​
Total					45,992		12,344

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Andre Hoekema	Plan 2019.I	10/16/2019	100% three years after offer date	10/16/2022		3,000
	Plan 2019.III	10/16/2019	50% two year after offer date	10/16/2021		16,922		8,461
			50% three years after offer date	10/16/2022
	Plan 2020.I	05/06/2020	100% three years after offer date	05/06/2023		832
	Plan 2021.I	05/05/2021	100% three years after offer date	05/05/2024		879	(2)​
	Plan 2021.IV	05/05/2021	25%/year	05/01/2022		51,433
			Four-year vesting period	09/01/2022	(3)​
				05/01/2024
				05/01/2025
Total						73,066		8,461
Walid Abi-Saab	Plan 2019.I	10/16/2019	100% three years after offer date	10/16/2022		5,000
	Plan 2019.II	10/16/2019	25%/year	05/01/2020		17,924
			Four-year vesting period	05/01/2021				4,481
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two year after offer date	10/16/2021		10,153		5,076
			50% three years after offer date	10/16/2022
	Plan 2020.I	05/06/2020	100% three years after offer date	05/06/2023		932
	Plan 2020.II	05/06/2020	25%/year	05/01/2021		11,148		2,787
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
	Plan 2021.I	05/05/2021	100% three years after offer date	05/05/2024		835
	Plan 2021.IV	05/05/2021	25%/year	05/01/2022		43,203
			Four-year vesting period	05/01/2023
				05/01/2024
				05/01/2025
Total						89,195		12,344
Michele Manto	Plan 2019.II	10/16/2019	25%/year	05/01/2020		5,121
			Four-year vesting period	05/01/2021				1,280
				05/01/2022
				05/01/2023
	Plan 2020.I	05/06/2020	100% three years after offer date	05/06/2023		612
	Plan 2020.II	05/06/2020	25%/year	05/01/2021		5,308		1,327
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
	Plan 2021.I	05/05/2021	100% three years after offer date	05/05/2024		835
	Plan 2021.IV	05/05/2021	25%/year	05/01/2022		30,859
			Four-year vesting period	05/01/2023
				05/01/2024
				05/01/2025
Total						42,735		2,607
(1) Dr. Wigerinck did not accept his offer under the 2021.I RSU Plan.
(2) Dr. Hoekema did not accept his offer under the 2021.I RSU Plan.
(3) Upon substantiated recommendation of the remuneration and nomination committee, the supervisory board approved a deviation of the vesting rules under the RSU plan 2021.IV. The second vesting of 25% of the RSU grant under the aforementioned plan (corresponding with 12,858 RUSs) will occur earlier than under the normal plan rules.

Limitations on liability and indemnification matters

Under Belgian law, the supervisory board members and management board members of a company may be liable for damages to the company in case of improper performance of their duties. Our supervisory board members and management board members may be liable to our company and to third parties for infringement of our articles of association or Belgian company law. Under certain circumstances, supervisory board members and management board members may be criminally liable.

We maintain liability insurance for our supervisory board members and management board members, including insurance against liability under the Securities Act.

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The Belgian Companies Code includes a cap on liability for directors (i.e. supervisory board members and management board members, including persons in charge of daily management) for any damages they cause due to mismanagement, including breaches of the articles of association and the Belgian Companies Code. This liability cap applies towards the company and third parties. For Galapagos, the cap amounts to €12,000,000. The cap applies irrespective of the number of claimants or defendants for the same (set of) facts. However, the cap does not apply to repetitive minor misconduct, serious error or cases of fraud. Furthermore, the cap does not apply to directors’ liability under the special liability regimes relating to payment of withholding tax, VAT and social security contributions.

Certain of our supervisory board members, which are all non-executive directors, may through their relationships with their employers or partnerships be insured and/or indemnified against certain liabilities in their capacity as members of our supervisory board.

In the underwriting agreements we entered into in connection with our May 2015 global offering and subsequent follow-on U.S. public offerings, the underwriters agreed to indemnify, under certain conditions, us, the members of our board of directors (as from April 28, 2020 our supervisory board) and persons who control our company within the meaning of the Securities Act against certain liabilities, but only to the extent that such liabilities are caused by information relating to the underwriters furnished to us in writing expressly for use in the applicable registration statements and certain other disclosure documents.

Subscription right plans

Various subscription right plans were approved for the benefit of our employees, and for supervisory board and management board members and independent consultants of Galapagos NV (“subscription rights” is the new term for instruments formerly referred to as “warrants” under the new Belgian Companies Code). For subscription right plans issued prior to 2011, the subscription rights offered to the employees and independent consultants vest according to the following schedule: 10% of the warrants vest on the date of the grant; an additional 10% vest at the first anniversary of the grant; an additional 20% vest at the second anniversary of the grant; an additional 20% vest at the third anniversary of the grant; and an additional 40% vest at the end of the third calendar year following the grant.

The subscription rights granted under subscription right plans created from 2011 onwards vest at the end of the third calendar year following the year of the grant, with no intermediate vesting, with the exception of the subscription rights granted (i) under Warrant Plan 2015 (B), Warrant Plan 2015 RMV, and Warrant Plan 2016 (B), which vest on the third anniversary of the notary deed enacting the acceptance and issuance of the subscription rights and (ii) under Subscription Right Plan 2021 RMV and Subscription Right Plan 2021 ROW, subscription rights vest and become exercisable in instalments, with 25% of each grant vesting on the first day of the second calendar year following the calendar year in which the grant was made, 25% vesting on the first day of the third calendar year following the calendar year in which the grant was made and 50% vesting on the first day of the fourth calendar year following the calendar year in which the grant was made.

The subscription rights offered to supervisory board members vest over a period of 36 months at a rate of 1/36th per month. As from January 1, 2020, Galapagos no longer grants any subscription rights to supervisory board members, taking into account the stricter rules of the Belgian Companies Code and provision 7.6 of the 2020 Corporate Governance Code.

Subscription rights cannot be exercised before the end of the third calendar year following the year of the grant, except for warrants/subscription rights granted under (i) Warrant Plan 2015 (B), Warrant Plan 2015 RMV, and Warrant Plan 2016 (B), which become exercisable on the third anniversary of the notary deed enacting the acceptance and issuance of the subscription rights and (ii) Subscription Right Plan 2021 RMV and Subscription Right Plan 2021 ROW, which become exercisable in instalments. Pursuant to a resolution of our extraordinary shareholders’ meeting of May 23, 2011, in the event of a change of control over Galapagos NV, all outstanding subscription rights vest immediately and will be immediately exercisable.

After the reverse 4:1 share split approved by the extraordinary shareholders’ meeting of March 29, 2005, four warrants under Warrant Plan 2002 Belgium entitle the subscription right holder to subscribe for one ordinary share. For the subscription right plans created from 2005 onwards, one subscription right entitles the subscription right holder to

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subscribe for one ordinary share. In the summaries and tables below, the numbers of subscription rights issued under Warrant Plan 2002 Belgium are divided by four to avoid confusion in entitlements and rights.

Generally, unless our supervisory board at the time of the grant of the subscription right determines a higher exercise price, the exercise price of a subscription right will at least be equal to:

• the last closing price of our ordinary shares on Euronext Amsterdam prior to the date on which the subscription right is offered; or

• the average closing price of our ordinary shares on Euronext Amsterdam over the thirty-day period preceding the date on which the subscription right is offered.

However, for the subscription rights offered under Warrant Plan 2002 Belgium, since the ordinary shares of our company were not yet traded or listed on a stock exchange at the time of the relevant offers, the exercise price was to be determined by our board of directors at the time of the offer and had to be at least equal to the market value of the former Class D shares, as determined by the board of directors at that time and as certified by the auditor of our company. In addition, the exercise price could not be lower than (1) the book value of the existing shares as appearing from the last approved annual accounts of the company at the date of the offer and (2) €1.

From 2002 until December 31, 2021, an aggregate of 16,989,170 subscription rights were granted. Of these 16,989,170 subscription rights:

• 147,512 subscription rights lapsed because they were not timely exercised by their beneficiaries;

• 2,120,824 subscription rights lapsed due to their beneficiaries no longer being employed by the company or because another condition for vesting was not met; and

• 6,288,509 subscription rights were exercised.

As a result, as of December 31, 2021, there were 8,579,837 subscription rights outstanding, representing approximately 11.57% of the total number of all our issued and outstanding voting financial instruments.

The table below sets forth the details of all subscription rights granted under the subscription right plans for employees, supervisory board members, management board members and independent consultants in force as per December 31, 2021, including the plan under which the subscription rights were granted, the offer date, exercise price, expiry date, number of subscription rights exercised, number of subscription rights voided and number of subscription rights outstanding. Aside from the subscription rights set forth in the below table, there are currently no other stock options, options to purchase securities, convertible securities or other rights to subscribe for or purchase outstanding securities.

						Number of
			Number of	Number of	Number of	subscription rights
		Exercise	subscription rights	subscription rights	subscription rights	still	Exercisable
Subscription right plan	Offer date	price (€)	granted	exercised	voided	outstanding	from	Expiry date
2002 Belgium	03/06/2002	4.00	553,705	423,698	130,007	—	01/01/2006	03/06/2010
	09/02/2002	4.00	27,125	14,150	12,975	—	01/01/2006	09/02/2010
	03/06/2003	4.00	5,250	1,287	3,963	—	01/01/2007	03/31/2007
	04/01/2003	4.00	7,500	7,500	—	—	01/01/2007	04/01/2011
	06/15/2004	4.00	2,000	2,000	—	—	01/01/2008	06/15/2012
	07/09/2004	4.00	31,250	31,250	—	—	01/01/2008	02/01/2017
	07/22/2004	4.00	7,500	—	7,500	—	01/01/2008	03/31/2008
	01/31/2005	6.76	159,375	115,000	44,375	—	01/01/2009	02/01/2017
Total			793,705	594,885	198,820	—
2005	07/04/2005	6.91	145,000	145,000	—	—	01/01/2009	07/03/2018
	11/23/2005	8.35	125,000	75,000	50,000	—	01/01/2009	11/22/2018
	12/15/2005	8.60	12,500	12,500	—	—	01/01/2009	12/14/2018
	02/13/2006	8.61	40,000	8,000	32,000	—	01/01/2010	03/31/2010
	02/13/2006	8.73	53,500	50,972	2,528	—	01/01/2010	03/31/2010
	11/22/2006	8.65	82,600	61,285	21,315	—	01/01/2010	11/21/2019
Total			458,600	352,757	105,843	—
2006 BNL	02/13/2006	8.61	112,953	100,662	12,291	—	01/01/2010	02/12/2019
	11/22/2006	8.65	87,090	16,450	70,640	—	01/01/2010	11/21/2019
	02/14/2007	9.57	102,900	9,170	93,730	—	01/01/2011	08/31/2011
	05/04/2007	9.22	17,500	17,500	—	—	01/01/2011	05/03/2020
	06/28/2007	8.65	735	735	—	—	01/01/2011	06/27/2020
	12/21/2007	7.12	25,110	13,171	11,939	—	01/01/2011	12/20/2020
Total			346,288	157,688	188,600	—

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2006 UK	06/01/2006	8.70	302,191	230,963	71,228	—	01/01/2010	09/30/2014
	11/22/2006	8.65	13,965	11,907	2,058	—	01/01/2010	11/21/2014
	12/19/2006	9.18	77,700	31,885	45,815	—	01/01/2010	12/18/2014
	06/28/2007	8.43	30,585	20,085	10,500	—	01/01/2011	06/27/2015
	12/21/2007	7.25	945	945	—	—	01/01/2011	12/20/2015
Total			425,386	295,785	129,601	—
2007	06/28/2007	8.65	108,126	108,126	—	—	01/01/2011	06/27/2015
	06/28/2007	8.65	256,314	203,141	53,173	—	01/01/2011	06/27/2020
Total			364,440	311,267	53,173	—
2007 RMV	10/25/2007	8.65	108,850	103,950	4,900	—	01/01/2011	10/24/2020
Total			108,850	103,950	4,900	—
2008	06/26/2008	5.60	201,445	194,119	7,326	—	01/01/2012	06/25/2021
Total			201,445	194,119	7,326	—
2008 (B)	06/26/2008	5.60	57,500	50,000	7,500	—	01/01/2012	06/25/2013
Total			57,500	50,000	7,500	—
2009	04/01/2009	5.87	555,000	490,000	65,000	—	01/01/2013	03/31/2017
Total			555,000	490,000	65,000	—
2009 (B)	02/06/2009	7.09	135,100	131,670	3,430	—	01/01/2013	06/01/2014
Total			135,100	131,670	3,430	—
2010	04/27/2010	11.55	466,500	416,750	49,750	—	01/01/2014	04/26/2018
	04/27/2010	11.55	40,000	40,000	—	—	04/27/2014	04/26/2018
Total			506,500	456,750	49,750	—
2010 (B)	04/27/2010	11.55	195,040	190,108	4,932	—	01/01/2014	04/26/2015
Total			195,040	190,108	4,932	—
2010 (C)	12/23/2010	11.74	75,000	75,000	—	—	01/01/2014	12/22/2018
Total			75,000	75,000	—	—
2011	05/23/2011	9.95	561,500	432,500	129,000	—	01/01/2015	05/22/2019
	05/23/2011	9.95	57,500	50,000	7,500	—	05/23/2015	05/22/2019
Total			619,000	482,500	136,500	—
2011 (B)	05/23/2011	9.95	129,220	127,750	1,470	—	01/01/2015	05/22/2016
Total			129,220	127,750	1,470	—
2012	09/03/2012	14.19	448,640	345,490	103,150	—	01/01/2016	09/02/2020
	09/03/2012	14.19	32,500	22,500	10,000	—	09/03/2016	09/02/2020
Total			481,140	367,990	113,150	—
2013	05/16/2013	19.38	602,790	431,840	170,950	—	01/01/2017	05/15/2021
Total			602,790	431,840	170,950	—
2013 (B)	09/18/2013	15.18	75,000	30,000	45,000	—	01/01/2017	06/30/2017
Total			75,000	30,000	45,000	—
2014	07/25/2014	14.54	571,660	409,120	35,000	127,540	01/01/2018	07/24/2022
Total			571,660	409,120	35,000	127,540
2014 (B)	10/14/2014	11.93	150,000	150,000	—	—	01/01/2018	10/13/2022
Total			150,000	150,000	—	—
2015	04/30/2015	28.75	532,053	315,830	17,000	199,223	01/01/2019	04/29/2023
Total			532,053	315,830	17,000	199,223
2015 (B)	12/22/2015	49.00	399,000	142,500	—	256,500	03/02/2019	12/21/2023
Total			399,000	142,500	—	256,500
2015 RMV	12/22/2015	49.00	97,500	62,500	—	35,000	03/02/2019	12/21/2023
Total			97,500	62,500	—	35,000
2016	06/01/2016	46.10	514,250	173,500	10,000	330,750	01/01/2020	05/31/2024
Total			514,250	173,500	10,000	330,750
2016 RMV	06/01/2016	46.10	120,000	51,000	—	69,000	01/01/2020	05/31/2024
Total			120,000	51,000	—	69,000
2016 (B)	01/20/2017	62.50	150,000	140,000	—	10,000	04/06/2020	01/19/2025
Total			150,000	140,000	—	10,000
2017	05/17/2017	80.57	595,500	—	—	595,500	01/01/2021	05/16/2025
Total			595,500	—	—	595,500
2017 RMV	05/17/2017	80.57	127,500	—	—	127,500	01/01/2021	05/16/2025
Total			127,500	—	—	127,500
2018	04/19/2018	79.88	1,097,745	—	91,750	1,005,995	01/01/2022	04/18/2026
Total			1,097,745	—	91,750	1,005,995
2018 RMV	04/19/2018	79.88	137,500	—	—	137,500	01/01/2022	04/18/2026
Total			137,500	—	—	137,500
2019	04/10/2019	95.11	1,504,940	—	204,100	1,300,840	01/01/2023	04/10/2027
Total			1,504,940	—	204,100	1,300,840
2019 RMV	04/10/2019	95.11	194,750	—	4,250	190,500	01/01/2023	04/10/2027
Total			194,750	—	4,250	190,500
2020	04/17/2020	168.42	1,925,185	—	307,257	1,617,928	01/01/2024	04/17/2028
Total			1,925,185	—	307,257	1,617,928
2020 RMV	04/17/2020	168.42	248,150	—	20,675	227,475	01/01/2024	04/17/2028
Total			248,150	—	20,675	227,475
2021	04/30/2021	64.76	1,117,603	—	33,567	1,084,036	01/01/2025	04/30/2029
Total			1,117,603	—	33,567	1,084,036
2021 RMV	04/30/2021	64.76	291,725	—	9,175	282,550	01/01/2023 01/01/2024 01/01/2025	04/30/2029
Total			291,725	—	9,175	282,550
2021 ROW	04/30/2021	64.76	1,084,105	—	102,105	982,000	01/01/2023 01/01/2024 01/01/2025	04/30/2029
Total			1,084,105	—	102,105	982,000
Grand Total			16,989,170	6,288,509	2,120,824	8,579,837

In addition to the subscription right plans for our employees, supervisory board members, management board members, and independent consultants described above, on October 22, 2019, our extraordinary shareholders’ meeting approved the issuance of two subscription rights for the benefit of Gilead Therapeutics A1 Unlimited Company, called the initial Warrant A and the initial Warrant B. These subscription rights entitle the holder thereof to subscribe, during the entire term of the respective subscription right, upon each exercise of a subscription right, for a maximum number of shares that is sufficient to bring the shareholding of Gilead and its affiliates to 25.1% and 29.9%, respectively, of the actually issued and outstanding shares after the exercise of the relevant subscription right (rounded down to the nearest whole share). The initial Warrant A has a term of one year and an exercise price of €140.59 per share and expired during

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2020. The initial Warrant B has a term of five years and an exercise price per share equal to the greater of (i) 120% multiplied by the arithmetic mean of the 30-day daily volume weighted average trading price of Galapagos’ shares as traded on Euronext Brussels and Euronext Amsterdam, and (ii) €140.59.

C.     Board practices

As of April 28, 2020 Galapagos has a two-tier governance structure as provided for by the Belgian Companies Code, with the supervisory board replacing the board of directors, and the management board replacing the executive committee.

Our supervisory board can set up specialized committees to analyze specific issues and advise the supervisory board on those issues. The committees are advisory bodies only and the decision-making remains within the collegial responsibility of the supervisory board. The supervisory board determines the terms of reference of each committee with respect to the organization, procedures, policies and activities of the committee.

Our supervisory board has set up and appointed an audit committee and a nomination and remuneration committee. The composition and function of all of our committees will comply with all applicable requirements of the Belgian Companies Code, the Exchange Act, the exchanges on which the ordinary shares and ADSs are listed, and SEC rules and regulations.

Except the arrangements described in the section of this annual report titled “Item 7.B.—Related-Party Transactions— Agreements with Our Supervisory Board Members and Members of the Management Board,” there are no arrangements or understanding between us and any of the members of our management board or of our supervisory board providing for benefits upon termination of their employment, other than as required by applicable law. For information regarding the expiration of our supervisory board members’ current terms of office and the period each supervisory board member has served in that office, see “Item 6.A.— Directors and Senior Management.— Our Supervisory Board.”

Director independence

As a foreign private issuer, under the listing requirements and rules of Nasdaq, we are not required to have independent directors on our supervisory board, except that our audit committee is required to consist fully of independent supervisory board members, subject to certain phase-in schedules. However, our supervisory board has determined that, under current listing requirements and rules of Nasdaq and taking into account any applicable committee independence standards, Raj Parekh, Howard Rowe, Peter Guenter, Katrine Bosley, Mary Kerr and Elisabeth Svanberg are “independent directors.” In making such determination, our supervisory board considered the relationships that each non-executive supervisory board member has with us and all other facts and circumstances our supervisory board deemed relevant in determining the supervisory board member's independence, including the number of ordinary shares beneficially owned by the supervisory board member and his or her affiliated entities (if any).

The independence criteria under the applicable Nasdaq Stock Market Listing Rules and US Securities Exchange Act requirements differ from the independence criteria set forth in article 7:106 juncto article 7:87 of the Belgian Companies Code. Under article 7:106 juncto article 7:87 of the Belgian Companies Code Howard Rowe, Peter Guenter, Katrine Bosley, Mary Kerr and Elisabeth Svanberg are “independent supervisory board members.” Pursuant to Belgian law, our supervisory board is composed of a majority of independent non-executive directors.

Role of the Supervisory Board in risk oversight

Our supervisory board is responsible for the oversight of our risk management activities and has delegated to the audit committee the responsibility to assist our supervisory board in this task. While our supervisory board oversees our risk management, our management board is responsible for day-to-day risk management processes. Our supervisory board expects our management board members to consider risk and risk management in each business decision, to proactively develop and monitor risk management strategies and processes for day-to-day activities and to effectively implement risk management strategies adopted by the supervisory board. We believe this division of responsibilities is the most effective approach for addressing the risks we face.

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Corporate governance practices

Along with our articles of association, we adopted a corporate governance charter in accordance with the recommendations set out in the Belgian Corporate Governance Code issued on March 12, 2009 by the Belgian Corporate Governance Committee (the “2009 Belgian Corporate Governance Code”). In light of the new Belgian Companies Code, the Belgian Corporate Governance Committee adopted a new 2020 Belgian Corporate Governance Code (the “2020 Belgian Corporate Governance Code”), published on May 9, 2019. The 2020 Belgian Corporate Governance Code applies compulsorily to reporting years beginning on or after January 1, 2020. Our board of directors (now: our supervisory board) has adopted the Belgian Corporate Governance Code for the reporting period beginning on January 1, 2020. Following the amendment of our articles of association, our supervisory board approved on April 28, 2020 an updated corporate governance charter (which is available on our website, www.glpg.com). Information contained on, or that can be accessed through, our website does not constitute a part of this annual report. The corporate governance charter applies in addition to the law, our articles of association and the corporate governance provisions included in the Belgian Companies Code and the 2020 Belgian Corporate Governance Code. For the reporting year beginning on January 1, 2021, the 2020 Belgian Corporate Governance Code was our reference code.

The 2020 Belgian Corporate Governance Code is based on a “comply or explain” system: Belgian listed companies are expected to follow the 2020 Belgian Corporate Governance Code, but can deviate from specific provisions and guidelines (though not the principles) provided they disclose the justification for such deviations.

For the reporting year beginning on January 1, 2021, our supervisory board strove to comply with the Belgian Corporate Governance Code and no deviations from the provisions of Belgian Corporate Governance Code occurred.

Our supervisory board regularly reviews its corporate governance charter and makes such changes as it deems necessary and appropriate. Additionally, our supervisory board adopted written terms of reference for each of the management board, the audit committee and the nomination and remuneration committee, which are part of the corporate governance charter. As a result of the proposed introduction of a one-tier governance model, and subject to approval of such proposal by the extraordinary shareholders’ meeting of Galapagos NV to be held on April 26, 2022, our corporate governance charter will be updated.

Supervisory Board committees

The supervisory board has established an audit committee and a nomination and remuneration committee, which operate pursuant to the written terms of reference for each of the audit committee and the nomination and remuneration committee that are part of the corporate governance charter adopted by our supervisory board. The composition and functioning of all of our committees will comply with all applicable requirements of the Belgian Companies Code and the 2020 Belgian Corporate Governance Code, the Exchange Act, the exchanges on which the ordinary shares and ADSs are listed, and SEC rules and regulations, taking into account the differences set out below and the company’s status as a foreign private issuer.

The Listing Rules of the Nasdaq Stock Market include certain accommodations in the corporate governance requirements that allow foreign private issuers to follow “home country” corporate governance practices in lieu of the otherwise applicable corporate governance standards of the Nasdaq Stock Market. The application of such exceptions requires that we disclose each of the Nasdaq Stock Market Listing Rules that we do not follow and describe the Belgian corporate governance practices we do follow in lieu of the relevant Nasdaq Stock Market corporate governance standard.

We follow Belgian corporate governance practices in lieu of the corporate governance requirements of the Nasdaq Stock Market in respect of the following rules applicable to board committees:

● Compensation committee. Nasdaq Stock Market Listing Rule 5605(d)(2) requires that compensation of officers must be determined by, or recommended to the board of directors for determination, either by a majority of the independent directors, or a compensation committee comprised solely of independent directors. Nasdaq Stock Market Listing Rule 5605(e) requires that director nominees be selected, or recommended for selection, either by a majority of the independent directors or a nominations committee comprised solely of independent directors. Under Belgian law, we are not subject to such composition requirements. Pursuant to article 7:100 of the Belgian Companies Code and the principles and guidelines of the 2020 Belgian Corporate Governance Code, we are required to set up a remuneration committee within our

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supervisory board, consisting of a majority of independent supervisory board members. In addition, the Belgian Corporate Governance Code provides that the supervisory board should set up a nomination committee, which can be combined with the remuneration committee. Our supervisory board has set up and appointed a nomination and remuneration committee.

● Charters. Nasdaq Stock Market Listing Rules 5605(c)(1), (d)(1) and (e)(2) require that each committee of the board of directors must have a formal written charter. Pursuant to the Belgian Corporate Governance Code, our supervisory board has drawn up a corporate governance charter including, amongst others, the internal rules of our committees. Following the amendment of our articles of association, our supervisory board approved on April 28, 2020 an updated corporate governance charter. The corporate governance charter applies in addition to the law, our articles of association and the corporate governance provisions included in the Belgian Companies Code and the 2020 Belgian Corporate Governance Code.

Audit committee

Our audit committee consists of three members: Howard Rowe (Chairman), Mary Kerr and Peter Guenter.

Our supervisory board has determined that all members of our audit committee are independent under Rule 10A-3 of the Exchange Act and the applicable rules of the Nasdaq Stock Market and that Howard Rowe qualifies as an “audit committee financial expert” as defined under the Exchange Act.

Our audit committee assists our supervisory board in overseeing the accuracy and integrity of our accounting and financial reporting processes and audits of our statutory and consolidated financial statements, the implementation and effectiveness of an internal control system and our compliance with legal and regulatory requirements, the independent auditors’ qualifications and independence and the performance of the independent auditors.

Our audit committee’s duties and responsibilities to carry out its purposes include, among others:

• ensuring the integrity of our financial reporting, including review of periodic information before it is made public;

• evaluating our system of internal controls set up by our management board, including evaluation and approval of the explanatory notes on internal controls in our annual reports;

• reviewing the functions of our internal risk management system and the efficacy of these systems;

• assessing the necessity for setting up an internal audit function; and

• supervising our relationship with our external auditors during the external audit process, including evaluation of our auditors’ independence.

The committee regularly reports to our supervisory board on the discharge of its functions. It informs our supervisory board about all areas in which action or improvement is necessary in its opinion and produces recommendations concerning the necessary steps that need to be taken. The audit review and the reporting on that review cover us and our subsidiaries as a whole. The members of the audit committee are entitled to receive all information which they need for the performance of their function, from our supervisory board, management board and employees. Every member of the audit committee shall exercise this right in consultation with the chairman of the audit committee.

Since 2019, the audit committee also reviews Corporate Social Responsibility (CSR) initiatives, as included in the annual CSR report, ensuring that we implement our planned initiatives and communicate them effectively and accurately to our employees and shareholders. The CSR report 2020 provides the non-financial information required by article 3:6 §4 and article 3:32 §2 of the Belgian Companies Code; a copy of our CSR report 2021 is available on our company website at http://www.glpg.com/financial-reports (this website does not form part of this annual report on Form 20-F).

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Nomination and remuneration committee

Our nomination and remuneration committee consists of three members: Raj Parekh (Chairman), Katrine Bosley and Elisabeth Svanberg.

Our supervisory board has determined that all members of our nomination and remuneration committee are independent under the applicable rules of the Nasdaq Stock Market.

Concerning our company’s nomination policy, this committee’s duties and responsibilities to carry out its purposes include, among others:

• making and evaluating proposals to our supervisory board with regard to the election and re-election of supervisory board members (non-executive directors);

• advising on the size and composition of the supervisory board periodically;

• making selection criteria and nomination procedures for members of the supervisory board and/or of the management board; and

• advising on proposals relating to the appointment or dismissal of the members of the management board

Concerning our company’s remuneration policy, this committee’s duties and responsibilities to carry out its purposes include, among others:

• making and evaluating proposals to our board of directors with regard to the remuneration policy for non-aking and evaluating proposals to our supervisory board with regard to the remuneration policy for supervisory board members (all non-executive directors) and the proposals which have to be submitted to the shareholders;

• making and evaluating proposals to our supervisory board relating to the remuneration policy for members of our management board;

• making proposals relating to individual remuneration, including bonuses; and

• discussing and evaluating the operations and performance of the management board at least once a year.

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D.     Employees

As of December 31, 2021 we had 1,309 employees. Our employees in France, the Netherlands and Belgium are represented by a labor union and/or covered by a collective bargaining agreement. We have never experienced any employment-related work stoppages, and we consider our relations with our employees to be good. We have also engaged and may continue to engage independent contractors to assist us with our clinical activities. At each date shown, we had the following number of employees, broken out by department and geography:

	December 31,
	2021	2020	2019
Function:
Executive officers	5	6	5
Research	299	330	266
Development	407	449	300
Research services (1)	—	—	159
Commercial	292	147	40
Corporate and support	306	372	233
Total	1,309	1,304	1,003
Geography:
Leiden, the Netherlands	141	168	127
Mechelen, Belgium	544	674	486
Romainville, France	257	271	181
Boston, United States	6	13	12
Basel, Switzerland	57	63	31
Cambridge, United Kingdom	78	38	8
Milan, Italy	60	31	—
Madrid, Spain	58	32	—
Munich, Germany	85	14	—
Vienna, Austria	9	—	—
Copenhagen, Denmark	5	—	—
Stockholm, Sweden	6	—	—
Helsinki, Finland	2	—	—
Dublin, Ireland	1	—	—
Zagreb, Croatia	—	—	158
Total	1,309	1,304	1,003
(1) For the financial year 2019, the employees set forth for research services are the employees of our fee-for-service activity Fidelta, that has been sold to Selvita on January 4, 2021.

E.     Share Ownership

For information regarding the share ownership of our supervisory board members and management board members, see “Item 6.B.— Compensation” and “Item 7.A.—Major shareholders.”

Item 7    Major shareholders and related party transactions

A.     Major shareholders

The following table sets forth information with respect to the beneficial ownership of our ordinary shares as of March 15, 2022 for:

• each person who is known by us to own beneficially more than 5% of our outstanding ordinary shares;

• each member of our supervisory board;

• each member of our management board; and

• all members of our supervisory board and management board as a group.

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Beneficial ownership is determined in accordance with the rules of the SEC. These rules generally attribute beneficial ownership of securities to persons who possess sole or shared voting power or investment power with respect to those securities and include ordinary shares that can be acquired within 60 days of March 15, 2022. The percentage ownership information shown in the table is based upon 65,552,721 ordinary shares outstanding as of March 15, 2022.

Except as otherwise indicated, all of the shares reflected in the table are ordinary shares or ADSs, and all persons listed below have sole voting and investment power with respect to the shares beneficially owned by them, subject to applicable community property laws. The information is not necessarily indicative of beneficial ownership for any other purpose.

In computing the number of ordinary shares beneficially owned by a person and the percentage ownership of that person, we deemed outstanding ordinary shares subject to subscription rights held by that person that are immediately exercisable or exercisable within 60 days of March 15, 2022. We did not deem these shares outstanding, however, for the purpose of computing the percentage ownership of any other person. Beneficial ownership representing less than 1% is denoted with an asterisk (*). The information in the table below is based on information known to us or ascertained by us from public filings made by the shareholders. Except as otherwise indicated in the table below, addresses of the directors, members of our management board and named beneficial owners are in care of Galapagos NV, Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium.

	Shares beneficially owned
Name of beneficial owner	Number		Percentage
5% shareholders:
Gilead Sciences, Inc.	16,707,477	(1)(2) ​	25.49	%
Van Herk Investments B.V.	4,635,672	(1)(3) ​	7.07	%
EcoR1 Capital LLC	3,407,246	(1)(4)​	5.02	%
Members of the supervisory board and management board:
Raj Parekh, MA, DPhil	31,579	(5) ​	*
Howard Rowe, JD	40,865	(6)​	*
Katrine Bosley	32,807	(7) ​	*
Mary Kerr, Ph.D.	15,785	(8) ​	*
Peter Guenter	809	(9)  ​	*
Daniel O'Day	—		—
Linda Higgins, Ph.D.	—		—
Elisabeth Svanberg, MD, Ph.D.	716	(10)​	*
Onno van de Stolpe	1,038,889	(11)​	1.58	%
Bart Filius	165,000	(12) ​	*
Andre Hoekema, Ph.D.	287,857	(13) ​	*
Walid Abi-Saab, MD	117,500	(14) ​	*
Michele Manto	91,000	(15) ​	*
Stoffels IMC BV, permanently represented by Paul Stoffels, MD	—		—
All members of our supervisory board and management board as a group (14 persons)	1,822,807	(16) ​	2.78	%

(1) At the time of the most recent transparency notification or filing of a statement of beneficial ownership with the SEC.

(2) Consists of 16,707,477 shares held by Gilead Therapeutics A1 Unlimited Company, which is a subsidiary of Gilead Sciences Ireland Unlimited Company, which is in turn a subsidiary of Gilead Biopharmaceutics US, LLC which is in turn a subsidiary of Gilead Sciences, Inc., which has the sole voting and investment power with respect to these shares. The address of Gilead Sciences, Inc. is 333 Lakeside Drive, Foster City, CA 94404, United States of America.

(3)

Consists of 4,635,672 shares held by Van Herk Investments B.V., as reported in a Schedule 13D filed on November 2, 2021 by (i) Van Herk Investments B.V., a private company with limited liability incorporated under the laws of the Netherlands (“VHI”), with respect to Common Stock (as defined below) beneficially owned by it, (ii) Van Herk Investments THI B.V., a private company with limited liability incorporated under the laws of the Netherlands (“VHIT”), with respect to Common Stock beneficially owned by VHI, (iii) Van Herk Private Equity Investments

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B.V., a private company with limited liability incorporated under the laws of the Netherlands (“VHPI”), with respect to Common Stock beneficially owned by VHI and VHIT, (iv) Stichting Administratiekantoor Penulata, a foundation organized under the laws of the Netherlands (“Penulata”), with respect to Common Stock beneficially owned by VHI, VHIT and VHPI, (v) Van Herk Management Services B.V., a private company with limited liability incorporated under the laws of the Netherlands (“VHMS”), with respect to Common Stock beneficially owned by VHI, VHIT and VHPI, (vi) Onroerend Goed Beheer- en Beleggingsmaatschappij A. van Herk B.V., a private company with limited liability incorporated under the laws of the Netherlands (“OGBBA”), with respect to Common Stock beneficially owned by VHI, VHIT, VHPI and VHMS, (vii) A. van Herk Holding B.V., a private company with limited liability incorporated under the laws of the Netherlands (“Holdings”), with respect to Common Stock beneficially owned by VHI, VHIT, VHPI, VHMS and OGBBA, (viii) Stichting Administratiekantoor Abchrys, a foundation organized under the laws of the Netherlands (“Abchrys”), with respect to Common Stock beneficially owned by VHI, VHIT, VHPI, VHMS, OGBBA and Holdings, and (ix) Adrianus van Herk (“Mr. van Herk”) with respect to Common Stock beneficially owned by VHI, VHIT, VHPI, VHMS, OGBBA, Holdings, Penulata and Abchrys. Mr. van Herk is (i) an investor, (ii) the holder of all of the depositary receipts issued by Penulata and Abchrys, (iii) the sole board member of Penulata and Abchrys, and (iv) the sole managing director of VHMS, OGBBA and Holdings. Penulata holds substantially all of the issued and outstanding shares of VHPI. VHPI is the sole shareholder of VHIT. VHIT is the sole shareholder of VHI. VHI is principally engaged in making investments. Abchrys holds substantially all of the issued and outstanding shares of Holdings. Holdings is the sole shareholder of OGBBA. OGBBA is the sole shareholder of VHMS and is principally engaged in making investments. VHMS is the sole managing director of VHI, VHIT and VHPI. Each of Mr. van Herk, VHIT, VHPI, Penulata, VHMS, OGBBA, Holdings and Abchrys disclaims beneficial ownership of the securities covered by such Schedule 13D statement. The address of each of VHI, VHIT, VHPI, Penulata, VHMS, OGBBA, Holdings, Abchrys and Mr. van Herk, is Lichtenauerlaan 30, 3062 ME Rotterdam, the Netherlands.

(4) Consists of 211,622 ordinary shares and 3,195,624 American Depository Receipts. EcoR1 Capital LLC, controlled by Mr. Nodelman, controls investment funds EcoR1 Capital Fund Qualified LP and EcoR1 Capital Rund LP, which all together hold 3,407,246 of Galapagos’ voting rights. The address of EcoR1 Capital LLC is 357 Tehama Street #3, San Francisco, CA 94103.

(5) Consists of (i) 1,579 shares and (ii) 30,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

(6) Consists of (i) 5,825 shares and (ii) 35,040 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

(7) Consists of (i) 287 shares and (ii) 32,520 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

(8) Consists of (i) 785 shares and (ii) 15,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

(9) Consists of 809 shares.

(10) Consists of 716 shares.

(11) Consists of (i) 438,889 shares and (ii) 600,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022. These numbers do not reflect the exercise of 50,000 subscription rights under a subscription rights exercise window ongoing on March 15, 2022.

(12) Consists of (i) 25,000 shares and (ii) 140,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

(13) Consists of (i) 42,857 shares and (ii) 245,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022. These numbers do not reflect the exercise of 10,000 subscription rights under a subscription rights exercise window ongoing on March 15, 2022.

(14) Consists of (i) 2,500 shares and (ii) 115,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

(15) Consists of (i) 1,000 shares and (ii) 90,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

(16) Includes 1,302,560 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2022.

Each of our shareholders is entitled to one vote per ordinary share. All shareholders have identical voting rights per share. We are not aware of any arrangement that may result in a change of control of our company.

As of March 15, 2022, reviewing identified ownership in depository received reports and independent shareholder identification of 90% of outstanding shares (ordinary shares and ADSs), approximately 40% of those are held by

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institutional investors domiciled in the United States, excluding Gilead Sciences, Inc., or Gilead. We estimate that shares were held in the United States by approximately 175 institutional holders of record, excluding Gilead Sciences, Inc., or Gilead. As of March 15, 2022, there were 13,552,727 ADSs outstanding, each representing one ordinary share, and in the aggregate representing approximately 20.7% of our outstanding ordinary shares. The actual number of holders is greater than these numbers of record holders, and includes beneficial owners whose ADSs are held in street name by brokers and other nominees. This number of holders of record also does not include holders whose shares may be held in trust by other entities.

On February 3, 2022, EcoR1 Capital LLC filed a Schedule 13G with the SEC to report that as of January 27, 2022, it held 5.2% of the outstanding shares of Galapagos as of January 27, 2022. EcoR1 Capital LLC thus crossed above the 5% threshold of Galapagos voting rights by purchase of voting securities on January 27, 2022.

On November 2, 2021, Van Herk Investments BV filed a Schedule 13D with the SEC to report that, as of November 2, 2021, it held 7.1% of the outstanding shares of Galapagos as of September 20, 2021.

On May 10, 2021, The Capital Group Companies, Inc. filed a Schedule 13G with the SEC to report that, as of April 30, 2021, it held 4.5% of the outstanding shares of Galapagos as of April 30, 2021. The Capital Group Companies, Inc. thus crossed below the 5% threshold of Galapagos voting rights by disposing of voting securities on April 30, 2021.

On February 26, 2021, we received a transparency notification from The Capital Group Companies, Inc., who notified that it holds 9.91% of the outstanding Galapagos shares. The Capital Group Companies, Inc. thus crossed below the 10% threshold of Galapagos’ voting rights by disposing of voting securities on February 22, 2021. On February 5, 2021, we received a transparency notice from The Capital Group Companies, Inc., that it held 10.03% of Galapagos shares. The Capital Group Companies, Inc. thus crossed above the 10% threshold of Galapagos’ voting rights by purchase of voting securities on 22 January 2021. Capital Group controls Capital Bank & Trust Company and Capital Research & Management Company through its direct subsidiary Capital Group International, Inc. (“CGII”), controls four CGII investment management companies (Capital International, Inc.; Capital International Limited, Capital International Sàrl; and Capital International K.K.), which all together hold 6,563,320 of Galapagos’ voting rights, consisting of ordinary shares (6,559,874) and equivalent financial instruments (right to recall lent American Depository Shares) (3,446), which represents 10.03% of Galapagos’ 65,411,767 outstanding shares as of March 15, 2021. On January 6, 2021, we received a transparency notice from Gilead Sciences, Inc., who notified that certain changes occurred in the chain of intermediary companies through which Gilead holds its shares in Galapagos, as a result of which Gilead holds its shares in Galapagos as of December 31, 2020 through its direct subsidiary Gilead Biopharmaceutics US, LLC, which through Gilead Sciences Ireland UC controls Gilead Therapeutics A1 Unlimited Company, which in turn holds 16,707,477 of Galapagos' voting rights, consisting of 16,707,477 shares (unchanged). Those 16,707,477 shares represent 25.54% of Galapagos' 65,411,767 outstanding shares as of March 15, 2021.

On January 7, 2020, we received a transparency notice from Gilead Sciences, Inc., who notified that certain changes occurred in the chain of intermediary companies through which Gilead holds its shares in Galapagos, more specifically that (i) on December 27, 2019, Gilead Biopharmaceutics US, LLC, a direct subsidiary of Gilead Sciences, Inc., acquired control over Gilead Biopharmaceutics Ireland UC, and that (ii) on December 28, 2019, Gilead Sciences Ireland UC, a direct subsidiary of Gilead Biopharmaceutics Ireland UC, acquired control over Gilead Therapeutics A1 Unlimited Company, an indirect subsidiary of Gilead Sciences, Inc., who holds 16,707,477 shares, representing 25.84% of our outstanding shares as of March 15, 2020.

On November 13, 2019, we received a transparency notification from Wellington Management Group LLP, who indicated that, following a disposal of ordinary shares, ADRs and equity swaps, the remaining Galapagos shares and equivalent financial instruments held by its entirely-controlled subsidiary Wellington Management Company LLP crossed below the 5% threshold of Galapagos’ voting rights. On November 11, 2019, we received a transparency notification from Gilead Sciences, Inc., who notified that Gilead Therapeutics A1 Unlimited Company, an indirect subsidiary of Gilead Sciences, Inc., held 16,207,477 of Galapagos' voting securities as a result of subscribing to a capital increase in the framework of the exercise of the Initial Warrant A on November 6, 2019, representing 25.10% of our then outstanding 64,571,622 shares. On October 22, 2019, we received a transparency notification from Wellington Management Group LLP, who indicated that, following a disposal of ordinary shares, the remaining 3,079,573 ordinary shares held by its entirely-controlled subsidiary Wellington Management Company LLP represented 4.97% of the then outstanding Galapagos shares and thus, with the ordinary shares portion of its total position, crossed below the 5% threshold of our voting rights on October 8, 2019. In addition, through its wholly owned subsidiary Wellington

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Management Company LLP, it also held 615,676 ADRs and 8,322 equity swaps with expiration in 2020, bringing the total number of voting rights for Wellington Management Group to 3,703,571, which represented 5.98% of the then outstanding shares. On October 4, 2019, we received a transparency notification from Wellington Management Group LLP, who notified that the 3,445,603 Galapagos shares held by its entirely-controlled subsidiary Wellington Management Company LLP represented 5.56% of the then outstanding Galapagos shares. Wellington Management Company LLP thus crossed above the 5% threshold of our voting rights by purchase of voting securities on October 1, 2019. On September 16, 2019, we received a transparency notification from Sands Capital Management, LLC, who notified that it held 2,803,887 ADRs, thus crossing passively below the 5% threshold of our voting rights, due to the share issuance for the benefit of Gilead on August 23, 2019. On August 29, 2019, we received a transparency notification from Van Herk Investments B.V., who notified that it held 5,800,301 of the then outstanding voting rights, thus crossing passively below the 10% threshold of our voting rights due to the share issuance for the benefit of Gilead on August 23, 2019. On August 28, 2019, we received a transparency notification from Gilead, who notified that Gilead Therapeutics A1 Unlimited Company held 13,589,686 of our voting rights, as a result of subscribing to a capital increase and thus receiving 6,828,985 new shares on August 23, 2019. This represented 22.04% of our then outstanding shares. Gilead Therapeutics A1 Unlimited Company thus crossed above the 20% threshold of Galapagos' voting rights. On July 17, 2019, Van Herk Investments B.V. filed a Schedule 13G with the SEC to report that, as of July 15, 2019, it held 5,792,737 of the outstanding shares of Galapagos as of July 15, 2019. This represented 10.57% of our then outstanding shares, thus crossing above the 10% threshold of our voting rights by purchase of voting securities on July 15, 2019. On June 6, 2019, we received a transparency notification from The Capital Group Companies, Inc. who notified that it controlled Capital Research and Management Company, which held 2,772,024 of our voting rights. This represented 5.08% of our then outstanding shares, thus crossing above the 5% threshold of our voting rights by purchase of voting securities on June 5, 2019.

B.     Related party transactions

Since January 1, 2019, we have engaged in the following transactions with the members of our supervisory board, members of our management board and holders of more than 10% of our outstanding voting securities and their affiliates.

On July 14, 2019, we and Gilead announced that we entered into a 10-year global research and development collaboration. In the context of the transaction, Gilead also made an equity investment in Galapagos. Finally, we amended and restated the license agreement for filgotinib that we originally entered into with Gilead on December 16, 2015.

On August 23, 2019, the closing of the transaction took place and we received an upfront payment of $3.95 billion (or €3,569.8 million) and a $1.1 billion (or €960.1 million) equity investment from Gilead.

On December 15, 2020 we and Gilead amended the existing arrangement for the commercialization and development of Jyseleca (filgotinib).

On September 6, 2021, we and Gilead agreed to transfer the sponsorship of and operational and financial responsibility for the ongoing DIVERSITY clinical study, evaluating filgotinib in CD, and its long-term extension study from Gilead to Galapagos. Under the terms of the agreement and upon completion of the transfer, Gilead will make a one-time payment of $15 million to Galapagos in consideration for Galapagos assuming responsibility for the DIVERSITY clinical study. In March 2022, Gilead and we agreed to transfer the sponsorship of and the operational responsibility for the MANTA study and its long-term extension to Galapagos. The transfer is intended to be completed by December 31, 2022.

Share subscription agreement

As part of the research and development collaboration, Gilead entered into a share subscription agreement with us. On August 23, 2019, Gilead Therapeutics A1 Unlimited Company subscribed to 6,828,985 new Galapagos shares at a price of €140.59 per share, including issuance premium.

On October 22, 2019, our extraordinary shareholders’ meeting further issued a warrant to Gilead Therapeutics A1 Unlimited Company, known as warrant A, that confers the right to subscribe for a number of new shares sufficient to

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bring the number of shares owned by Gilead and its affiliates to 25.1% of the issued and outstanding shares. Warrant A expires one year after the issue date and the exercise price per share is EUR 140.59. On November 6, 2019, Gilead exercised warrant A and increased its ownership in Galapagos to 25.10% of the then outstanding shares. Warrant A expired in October 2020.

On October 22, 2019, Gilead Therapeutics A1 Unlimited Company was also issued another warrant, known as the initial warrant B, that confers the right to subscribe for a number of new shares sufficient to bring the number of shares owned by Gilead and its affiliates to 29.9% of the issued and outstanding shares. The warrant will expire on August 23, 2024. The exercise price per share will be the greater of (i) 120% multiplied by the arithmetic mean of the 30-day daily volume weighted average trading price of the Galapagos shares preceding the date of the exercise notice with respect to such exercise, and (ii) €140.59. Between 57 and 59 months of August 23, 2019, subject to and upon approval by the shareholders’ meeting, Gilead Therapeutics A1 Unlimited Company will be issued a warrant with substantially similar terms, including as to exercise price, to the initial warrant B. This subsequent warrant B will expire on the earlier of the date that is five years after the fifth anniversary of the closing and the date that the warrant is issued.

Gilead and Gilead Therapeutics A1 Unlimited Company are subject to certain standstill restrictions until the date that is 10 years following the closing. Among other things, during this time Gilead and its affiliates and any party acting in concert with them may not, without our consent, acquire voting securities of Galapagos exceeding more than 29.9% of the then issued and outstanding voting securities, and Gilead and Gilead Therapeutics A1 Unlimited Company may not propose a business combination with or acquisition of Galapagos. The standstill restrictions are subject to certain exceptions as provided in the share subscription agreement.

Pursuant to the terms of the share subscription agreement, Gilead and Gilead Therapeutics A1 Unlimited Company also agreed to certain lock-up provisions. They shall not, and shall cause their affiliates not to, without our prior consent, dispose of any equity securities of Galapagos prior to the second anniversary of the closing. During the period running from the date that is two years following the closing until the date that is five years following the closing, Gilead and its affiliates shall not, without our prior consent, dispose of any equity securities of Galapagos if after such disposal they would own less than 20.1% of the then issued and outstanding voting securities of Galapagos. The lock-up restrictions are subject to certain exceptions as provided in the share subscription agreement and may terminate upon certain events. In April 2021, Gilead and Galapagos agreed to amend the share subscription agreement to extend the full lock-up of all of Gilead’s securities of Galapagos to a period of five years until August 22, 2024.

Global research and d evelopment collaboration

We will fund and lead all discovery and development autonomously until the end of Phase 2. After the completion of a qualifying Phase 2 study (or, in certain circumstances, the first Phase 3 study), Gilead will have the option to acquire a license to the compound outside Europe. If the option is exercised, we and Gilead will co-develop the compound and share costs equally. If GLPG1690 had been approved in the United States, Gilead would have paid us an additional $325 million regulatory milestone fee. Development of GLPG1690 was discontinued in February 2021.

For GLPG1972, after the completion of the ongoing Phase 2b study in osteoarthritis, Gilead had the option to pay a $250 million fee to license the compound in the United States. If certain secondary efficacy endpoints for GLPG1972 had been met, Gilead would have paid us up to an additional $200 million. Following opt-in on GLPG1972, we would have been eligible to receive up to $550 million in regulatory and sales based milestones. In November 2020, Gilead declined to exercise its option to GLPG1972. For all other programs resulting from the collaboration, Gilead will make a $150 million opt-in payment per program and will owe no subsequent milestones. We will receive tiered royalties ranging from 20-24% on net sales of all our products licensed by Gilead in all countries outside Europe as part of the agreement. With respect to GLPG1690, reimbursement of development costs under the cost split mechanism by Gilead to us amounted to €18.1 million for the year ended December 31, 2021 (€34.1 million for the year ended December 31, 2020 and €17.7 million for the year ended December 31, 2019).

For further information on our exclusive option, license and collaboration agreement with Gilead, see the section of this annual report titled “Item 4.B.—Business overview.—Collaborations— Option, License and Collaboration Agreement with Gilead.”.”

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Filgotinib collaboration

Under the agreement as revised in 2019, we and Gilead would co-commercialize filgotinib in France, Germany, Italy, Spain and the United Kingdom and retain the 50/50 profit share in these countries that was part of the original filgotinib license agreement. The companies would also share future global development costs for filgotinib equally until a predetermined level, in lieu of the 80/20 cost split provided by the original agreement.

In December 2020, we and Gilead entered into a binding term sheet pursuant to which we agreed to amend this agreement again. Under the terms of the new arrangement, we assumed all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. Most of the activities transferred to Galapagos by December 31, 2021 and we intend to complete the transition by December 31, 2022. Gilead retains commercial rights and remains marketing authorization holder for filgotinib outside of Europe, including in Japan. All commercial economics on filgotinib in Europe transferred to us as of January 1, 2022, subject to payment of tiered royalties of 8 to 15 percent of net sales in Europe to Gilead, starting in 2024. If the European Medicines Agency grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY study, then royalties payable by Galapagos to Gilead will be reduced by 30 percent across all filgotinib indications and will become 5.6 to 10.5 percent of net sales in Europe. Gilead will retain commercial rights and remain marketing authorization holder for filgotinib outside of Europe, including in Japan.

Since January 1, 2021, we bear the future development costs for certain studies, in lieu of the equal cost split contemplated by the previous agreement. These studies include the DARWIN3, FINCH4, FILOSOPHY, and Phase 4 studies and registries in RA, MANTA and MANTA-RAy, the PENGUIN1 and 2 and EQUATOR2 studies in PsA, the SEALION1 and 2 studies in AS, the HUMBOLDT study in uveitis in addition to other clinical and non-clinical expenses supporting these studies and support for any investigator sponsored trials in non-IBD conditions and non-clinical costs on all current trials. The existing 50/50 global development cost sharing arrangement will continue for the following studies: SELECTION and its long-term extension study (LTE) in UC, DIVERSITY and its LTE, DIVERGENCE 1 and 2 and their LTEs and support for Phase 4 studies and registries in Crohn’s disease, pediatric studies and their LTEs in RA, UC and Crohn’s disease, and support for investigator sponsored trials in IBD. In September 2021, we and Gilead agreed to transfer the sponsorship of the DIVERSITY study and its LTE study from Gilead to Galapagos. The transfer is intended to be completed by June 30, 2022. From April 1, 2022, Galapagos will also be solely responsible for all development costs for the DIVERSITY study and its LTE study. In March 2022, Gilead and we agreed to transfer the sponsorship of and the operational responsibility for the MANTA study and its long-term extension to Galapagos. The transfer is intended to be completed by December 31, 2022.

Under the original exclusive license and collaboration agreement, we received from Gilead $60.0 million (or €55.1 million) in milestone payments in the year ended December 31, 2016, $10.0 million (or €9.4 million) in milestone payments in the year ended December 31, 2017, and $15.0 million (or €12.4 million) in milestone payments in the year ended December 31, 2018. In December 2019, Gilead initiated a Phase 3 trial in psoriatic arthritis for which we received $10.0 million (€9.1 million). In December 2019, Gilead filed an NDA for filgotinib in the U.S. for which we received a $20.0 million (€ 18.2 million) payment in January 2020. In September 2020 filgotinib was approved by both the European and the Japanese authorities, for which we received a $105.0 million (€90.2 million) payment in October 2020.

In connection with the December 2020 amendments to the existing arrangement for the commercialization and development of filgotinib, Gilead has agreed to irrevocably pay Galapagos €160 million, subject to certain adjustments for higher than budgeted development costs. Gilead paid €35 million in January 2021, an additional €75 million in April 2021 and will pay €50 million in 2022. Furthermore, upon completion of the transfer of and operational responsibility for the DIVERSITY study, Gilead will make a one-time payment of $15 million to Galapagos in consideration for Galapagos assuming responsibility for the DIVERSITY study. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. However, we will remain eligible to receive tiered royalty percentages ranging from 20% to 30% on Gilead's global net sales of filgotinib outside of Europe and future development and regulatory milestone-based payments of up to $295 million and sales-based milestone payments of up to $600 million.

In addition, we received €16.2 million ($19.5 million) for royalties on filgotinib for the year ended December 31, 2020 from Gilead. We recognized €3.8 million of royalties on filgotinib from Gilead for the year ended December 31, 2021, of which €1.9 million was paid in 2021.

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We incurred €171.2 million in development costs for the year ended December 31, 2021 for the development of filgotinib in collaboration with Gilead: these costs relate to the Phase 2b and Phase 3 trials and mainly consist of costs recharged by Gilead as we were co-funding 50% as of August 23, 2019 of the global development activities, as well as costs paid to CROs in conjunction with clinical trials, costs for production of the compound for clinical testing, and, to a smaller extent, personnel costs and consultancy costs. The reimbursement of research and development costs under the cost split mechanism by us to Gilead amounted to €81.3 million for the year ended December 31, 2021 (€101.0 million for the year ended December 31, 2020 and €72.0 million for the year ended December 31, 2019). The reimbursement of research and development costs under the cost split mechanism by Gilead to us amounted to nil for the year ended December 31, 2021. (nil for the year ended December 31, 2020 and nil for the year ended December 31, 2019)

The reimbursement of commercialization costs under the cost split mechanism by us to Gilead amounted to nil for the year ended December 31, 2021 (nil for the year ended December 31, 2020 and €8.2 million for the year ended December 31, 2019).

The reimbursement of commercialization costs under the cost split mechanism by Gilead to us amounted to €66.7 million for the year ended December 31, 2021 (€7.8 million for the year ended December 31, 2020 and nil for the year ended December 31, 2019).

We purchased raw materials, semi-finished products and finished products of Jyseleca from Gilead for an amount of €24.9 million for the year ended December 31, 2021 (€0.2 million for the year ended December 31, 2020 and nil for the year ended December 31, 2019).

For further information on our exclusive license and collaboration agreement with Gilead, see the section of this annual report titled “Item 4.B.— Business overview.—Collaborations—Exclusive collaboration agreement with Gilead for filgotinib.”

Transactions with related companies

From time to time, in the ordinary course of our business we may contract for services from companies in which certain of the members of our executive committee or directors may serve as director or advisor. The cost of these services is negotiated on an arm’s length basis and none of these arrangements are material to us.

Agreements with our supervisory board and management board members

Management arrangements

As from January 1, 2020, all members of the management board provide their services under a management agreement with Galapagos NV, subject to Belgian law, that contains a notice period of six months and no other severance payments. These management agreements were replaced in April 2020 to take into account the implementation of the new Belgian Companies Code by our company, including the conversion of the former executive committee into the management board. The paragraphs below set forth the main terms of the agreements that applied as from April 28, 2020.

Onno van de Stolpe

On March 1, 2002, we entered into a management agreement, subject to Belgian law, with Onno van de Stolpe for the position of Managing Director and Chief Executive Officer for an indefinite period. Effective March 1, 2011, Mr. Van de Stolpe’s management agreement with Galapagos NV was reduced from a full-time basis to a part-time basis, for approximately 40% of his time, at which time he entered into (1) an employment agreement, subject to Dutch law, with Galapagos B.V. on a part-time basis, for approximately 35% of his time, and (2) a management agreement, subject to French law, with Galapagos SASU for approximately 25% of his time. On May 6, 2020, we entered into a new management agreement, subject to Belgian law, with Onno van de Stolpe for the position of Chief Executive Officer for an indefinite period. For the year ended December 31, 2021, Mr. Van de Stolpe received a base remuneration from Galapagos NV of €636,000.

On November 8, 2021, we entered into a settlement agreement with Onno van de Stolpe pursuant to which the management agreement will come to an end on October 31, 2022.

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Bart Filius

On September 15, 2014, Galapagos B.V. entered into an employment agreement, subject to Dutch law, with Bart Filius for the position of Chief Financial Officer, starting December 1, 2014 for an indefinite period. Effective December 1, 2014, Mr. Filius’ employment agreement with Galapagos B.V. was reduced from a full-time basis to a part-time basis, for approximately 60% of his time, and he entered into a management agreement, subject to Belgian law, with Galapagos NV for approximately 40% of his time. In addition to his role as Chief Financial Officer, Mr. Filius has served as Chief Operating Officer since September 2017. On May 6, 2020, we entered into a new management agreement, subject to Belgian law, with Bart Filius for the position of Chief Operating and Chief Financial Officer for an indefinite period. For the year ended December 31, 2021, Mr. Filius received a base remuneration from Galapagos NV of €480,500.

Andre Hoekema

On January 31, 2005, Galapagos B.V. entered into an employment agreement, subject to Dutch law, with Andre Hoekema for the position of Senior Vice President Corporate Development and member of the executive committee, for an indefinite period. Dr. Hoekema has served as Chief Business Officer since September 2017. On May 6, 2020, we entered into a new management agreement, subject to Belgian law, with Andre Hoekema for the position of Chief Business Officer for an indefinite period. For the year ended December 31, 2021, Dr. Hoekema received a base remuneration from Galapagos NV of €377,250.

Piet Wigerinck

On February 28, 2008, we entered into a management agreement, subject to Belgian law, with Piet Wigerinck, for an indefinite period. Dr. Wigerinck was appointed Chief Scientific Officer effective March 1, 2012. The management agreement stipulates that Dr. Wigerinck shall perform his duties thereunder on an independent basis. On May 6, 2020, we entered into a new management agreement, subject to Belgian law, with Piet Wigerinck for the position of Chief Scientific Officer for an indefinite period. For the year 2021, until his termination date of November 30, 2021, Dr. Wigerinck received a base remuneration from Galapagos NV of €387,333.

Dr. Wigerinck’s mandate as Chief Scientific Officer and member of our management board ended on November 30, 2021, pursuant of the termination on the same date of the aforementioned management agreement.

Walid Abi-Saab

On October 27, 2016, Galapagos NV entered into a management agreement, subject to Belgian law, with Walid Abi-Saab for the position of member of Galapagos’ executive committee and Chief Medical Officer, starting March 1, 2017, for an indefinite period. Effective March 1, 2017, Dr. Abi-Saab’s management agreement with Galapagos NV was reduced from a full-time basis to a part-time basis, for approximately 95% of his time, and he entered into an employment agreement, subject to Dutch law, with Galapagos B.V. for approximately 5% of his time. On January 16, 2018, the management agreement between Galapagos NV and Dr. Abi-Saab and the employment agreement between Galapagos B.V. and Dr. Abi-Saab were terminated by mutual agreement with effect from December 31, 2017. On January 16, 2018, Galapagos GmbH and Dr. Abi-Saab entered into an employment agreement, subject to Swiss law and effective from January 1, 2018, under which Dr. Abi-Saab continued to perform his duties as Chief Medical Officer, for an indefinite period. On May 6, 2020, we entered into a new management agreement, subject to Belgian law, with Walid Abi-Saab for the position of Chief Medical Officer for an indefinite period. For the year ended on December 31, 2021, Dr. Abi-Saab received a base remuneration from Galapagos NV of €422,750.

Michele Manto

On May 6, 2020, we entered into a new management agreement, subject to Belgian law, with Michele Manto for the position of Chief Commercial Officer for an indefinite period. For the year ended on December 31, 2020, Mr. Manto received a base remuneration from Galapagos NV of €336,250.

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Severance payments upon change of control

The abovementioned agreements with the members of our management board do not provide for severance compensation. They do not contain notice periods that exceed six months. However, we entered into undertakings with Mr. Van de Stolpe, Mr. Filius, Dr. Hoekema, Dr. Abi-Saab and Mr. Manto providing that, in case their contract with us is terminated as a result of a change of control of our company, they would be entitled to a severance compensation of 12 months’ base salary for our chief executive officer and nine months’ base salary for the other management board members.

Severance payments for departing management board members

In 2021 Dr. Piet Wigerinck, CSO and management board member, left Galapagos. Upon substantiated recommendation of the nomination and remuneration committee, the supervisory board approved the following severance package: (i) a severance compensation equal to six months of remuneration, i.e. €212,500, (ii) a one-time lump-sum payment of €553,766 for his unvested outstanding RSUs on his termination date and (iii) a non-compete of 12 months after the termination date in consideration of the payment by Galapagos of a monthly fee of €35,416.66 as stipulated in his management contract, except if Galapagos waives enforcement of the non-compete. Galapagos also paid Dr. Wigerinck’s 2021 pro rata (11/12) maximum cash bonus.

Dr. Wigerinck will not receive the long-term portion of the 2021 bonus, being a number of RSUs equivalent to the 2021 short-term cash bonus. He qualifies as a good leaver under the terms and conditions of the subscription rights plans and this is not part of his severance package.

On 30 August 2021, Galapagos announced the planned retirement of its CEO Onno van de Stolpe. After a transition period during which the retiring CEO will hand over his activities, Stoffels IMC BV, permanently represented by Dr. Paul Stoffels will fully take over as CEO effective April 1, 2022. Upon substantiated recommendation of the nomination and remuneration committee, the supervisory board approved the following retirement package: a non-compete of 12 months against the payment of a monthly fee of €150,000 by Galapagos, except if Galapagos waives enforcement of the non-compete.

Until 31 October 2022, Onno van de Stolpe will execute a purely advisory role as advisory member of the management board, for which he will continue to receive a remuneration, including entitlement to RSU pay-outs until the aforementioned date. In 2022, Onno van de Stolpe will not be eligible to 2022 performance variable remuneration, i.e. a cash bonus and the long-term portion of the bonus for 2021. Furthermore, he will not be eligible for any equity grants (RSUs and subscription rights) in 2022. He qualifies as a good leaver under the terms and conditions of the subscription rights plans and this is not part of his retirement package.

Supervisory Board and Management Board compensation

See the sections of this annual report in “Item 6.B.—Compensation.” titled “—Compensation of Our Board of See the sections of this annual report in “Item 6.B.—Compensation.” titled “—Compensation of Our Supervisory Board” and “— Compensation of Members of the Management Board” and the section titled “Item 7.A.—Major Shareholders.” for information regarding compensation of the members of our supervisory board and management board.

Equity awards

Since January 1, 2021, we have granted subscription rights and RSUs to the members of our management board. We do not grant RSUs to the members of our supervisory board and have discontinued the grant of subscription rights to members of our supervisory board as of 2020.

See the sections of this annual report in “Item 6.B.—Compensation.” titled “—Compensation of Our Supervisory Board” and “— Compensation of Members of our Management Board” and the section titled “Item 7.A.—Major Shareholders.” for information regarding equity awards to the members of our management board..

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Bonus plans

See the section of this annual report titled “Item 6.B.—Compensation.—Compensation of Members of the Management Board” for information regarding bonus plans for members of our management board.

Related-party transactions policy

Article 7:116 of the Belgian Companies Code provides for a special procedure that applies to intra-group or related party transactions. The procedure applies to decisions or transactions between us and our related parties that are not one of our subsidiaries. Prior to any such decision or transaction, our supervisory board must appoint a special committee consisting of three independent members of the supervisory board, who can opt to be assisted by one or more independent experts. This committee must assess the business advantages and disadvantages of the decision or transaction, quantify its financial consequences and determine whether the decision or transaction causes a disadvantage to us that is manifestly illegitimate in view of our policy. If the committee determines that the decision or transaction is not illegitimate but will prejudice us, it must analyze the advantages and disadvantages of such decision or transaction and set out such considerations as part of its advice. Our supervisory board must then make a decision, taking into account the opinion of the committee. Any deviation from the committee’s advice must be justified. Members of the supervisory board who have a conflict of interest are not entitled to participate in the deliberation and vote. The committee’s advice and the decision of the supervisory board must be notified to our auditor, who must render a separate opinion to assess that there is no material inconsistency between the accounting and financial information included in the minutes of the supervisory board and in the advice of the committee of the independent members of the supervisory board compared to the information that the statutory auditor has within the framework of its mandate. The conclusion of the committee and the opinion by the auditor must publicly disclosed at the time the transaction is entered into. This procedure does not apply to decisions or transactions in the ordinary course of business under customary market conditions and security documents, or to transactions or decisions with a value of less than 1% of our net assets as shown in our consolidated annual accounts.

In addition to this, our corporate governance charter provides for guidelines for transactions between our company and members of our supervisory board or management board. According to such guidelines:

• it is expected from all members of our supervisory board and management board that they avoid all acts, standpoints or interests which are conflicting with, or which give the impression that they are conflicting with, the interests of our company;

• all transactions between our company and members of our supervisory board or management board or representatives need the approval of our supervisory board. Such transactions could only be allowed at arm’s length (normal market conditions);

• members of our supervisory board and management board are, by way of example, not allowed, directly or indirectly, to enter into agreements with our company which relate to supply of materials or delivery of services (other than in the framework of their mandate for our company), except with the explicit approval of our supervisory board;

• in the event members of our supervisory board, management board or their permanent representatives are confronted with a potential conflict of interest with regard to a decision or a transaction of our company, they shall immediately inform the chairman of the supervisory board thereof. Conflict of interest means a conflict of proprietary interest, but also functional conflict of interest or conflicts of a family nature (up to second degree);

in the event article 7:115 of the Belgian Companies Code applies and a conflict of interests exists between us and a member of our supervisory board, the relevant member of our supervisory board shall not participate in the deliberation on the subject matter;

• in the event article 7:117 of the Belgian Companies Code applies and a conflict of interests exists between us and a member of our management board, the relevant decision shall not be made by the management board but shall be referred to the supervisory board; and

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• in the event articles 7:115 and 7:117 of the Belgian Companies Code do not apply, the existence of the conflict of interest shall be written down in the minutes (but shall not be published) and the member of the supervisory board or the management board shall not vote.

We have adopted a related-party transaction policy that sets forth our procedures for the identification, review, consideration and approval or ratification of related-party transactions. For purposes of our policy only, a related-party transaction is a transaction in which we are a participant and a related party has a direct or indirect material interest. For purposes of this policy, a related party is any member of the management board, any member of the supervisory board (or nominee) or beneficial owner of more than 5% of any class of our voting securities, including any of their immediate family members and any entity owned or controlled by such persons. Under the policy, if a transaction has been identified as a related-party transaction, our audit committee will review and consider information regarding the related-party transaction. In reviewing any related-party transaction, the committee will take into account, among other factors it deems appropriate, (i) whether the transaction is on terms no less favorable to us than terms generally available in a transaction with an unaffiliated third party under the same or similar circumstances; and (ii) the extent of the related party’s interest in the related-party transaction. Additionally, we will provide the audit committee with all material information regarding the related-party transaction, the interest of the related party, and any potential disclosure obligations in connection therewith. In addition, under our Code of Business Conduct and Ethics, our employees and directors have an affirmative responsibility to disclose any transaction or relationship that reasonably could be expected to give rise to a conflict of interest.

C.     Interests of experts and counsel

Not applicable.

Item 8    Financial information

A.     Consolidated statements and other financial information

Consolidated financial statements

Our consolidated financial statements are appended at the end of this annual report, starting at page F-1, and incorporated herein by reference.

Legal proceedings

From time to time we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. We are not presently a party to any legal proceedings that, if determined adversely to us, would individually or taken together have a material adverse effect on our business, results of operations, financial condition or cash flows. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

Dividend distribution policy

We have never declared or paid any cash dividends on our ordinary shares. We do not anticipate paying cash dividends on our equity securities in the foreseeable future and intend for the foreseeable future to retain all available funds and any future earnings for use in the operation and expansion of our business. In general, distributions of dividends proposed by our board of directors require the approval of our shareholders at a shareholders’ meeting with a simple majority vote, although our board of directors may declare interim dividends without shareholder approval, subject to the terms and conditions of the Belgian Companies Code.

Pursuant to Belgian law, the calculation of amounts available for distribution to shareholders, as dividends or otherwise, must be determined on the basis of our non-consolidated statutory financial accounts. In addition, under the Belgian Companies Code, we may declare or pay dividends only if, following the declaration and issuance of the dividends, the amount of our net assets on the date of the closing of the last financial year according to our statutory annual accounts (i.e., the amount of the assets as shown in the balance sheet, decreased with provisions and liabilities, all as prepared in accordance with Belgian accounting rules), decreased with the non-amortized costs of incorporation and expansion and the non-amortized costs for research and development, does not fall below the amount of the paid-up

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capital (or, if higher, the called capital), increased with the amount of nondistributable reserves. Finally, prior to distributing dividends, we must allocate at least 5% of our annual net profits (under our non-consolidated statutory accounts prepared in accordance with Belgian accounting rules) to a legal reserve, until such legal reserve amounts to 10% of our share capital.

B.     Significant changes

None.

Item 9    The offer and listing

A.     Offer and listing details

The ADSs have been listed on the Nasdaq Global Select Market, or Nasdaq, under the symbol “GLPG” since May 14, 2015. Prior to that date, there was no public trading market for the ADSs. Our ordinary shares have been trading on Euronext Amsterdam and Euronext Brussels under the symbol “GLPG” since May 6, 2005. Prior to that date, there was no public trading market for the ADSs or our ordinary shares. Our global offering in May 2015 was priced at $42.05 per ADS and €37.00 per ordinary share based on an exchange rate of $1.1365 per euro.

B.     Plan of distribution

Not applicable.

C.     Markets

The ADSs have been listed on Nasdaq under the symbol “GLPG” since May 14, 2015, and our ordinary shares have been listed on Euronext Amsterdam and Euronext Brussels under the symbol “GLPG” since May 6, 2005.

D.     Selling shareholders

Not applicable.

E.     Dilution

Not applicable.

F.     Expenses of the issue

Not applicable.

Item 10    Additional information

A.     Share capital

Not applicable.

B.     Memorandum and Articles of Association

The information set forth in our Registration Statement on Form F-3ASR (File No. 333-230639), automatically effective upon filing with the SEC on March 29, 2019, under the heading “Description of Share Capital”, as further supplemented by Exhibit 2.3 to this Annual Report (“Description of Securities”), is incorporated by reference.

C.     Material contracts

For information on our material contracts, please see the sections of this annual report titled “Item 4—Information on the Company” and “Item 7— Major shareholders and related party transactions.”

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D.     Exchange controls

There are no Belgian exchange control regulations that impose limitations on our ability to make, or the amount of, cash payments to residents of the United States.

We are in principle under an obligation to report to the National Bank of Belgium certain cross-border payments, transfers of funds, investments and other transactions in accordance with applicable balance-of-payments statistical reporting obligations. Where a cross-border transaction is carried out by a Belgian credit institution on our behalf, the credit institution will in certain circumstances be responsible for the reporting obligations.

E.     Taxation

Certain material U.S. federal income tax considerations to U.S. holders

The following is a summary of certain material U.S. federal income tax considerations relating to ownership and disposition of ADSs by a U.S. holder (as defined below). This summary addresses only the U.S. federal income tax considerations for U.S. holders of the ADSs and that will hold such ADSs as capital assets for U.S. federal income tax purposes. This summary does not address all U.S. federal income tax matters that may be relevant to a particular U.S. holder. This summary does not address all tax considerations that may be applicable to a holder of ADSs that may be subject to special tax rules including, without limitation, the following:

● banks, financial institutions or insurance companies;

● brokers, dealers or traders in securities, currencies, commodities, or notional principal contracts;

● tax-exempt entities or organizations, including an “individual retirement account” or “Roth IRA” as defined in Section 408 or 408A of the Code (as defined below), respectively;

● real estate investment trusts, regulated investment companies or grantor trusts;

● persons that hold the ADSs as part of a “hedging,” “integrated” or “conversion” transaction or as a position in a “straddle” for U.S. federal income tax purposes;

● partnerships (including entities classified as partnerships for U.S. federal income tax purposes) or other pass-through entities (including S Corportions), or persons that will hold the ADSs through such an entity;

● persons that received the ADSs as compensation for the performance of services;

● certain former citizens or long-term residents of the United States;

● holders that own directly, indirectly, or through attribution 10% or more of the voting power or value of the ADSs and shares; and

● holders that have a “functional currency” for U.S. federal income tax purposes other than the U.S. dollar.

Further, this summary does not address the U.S. federal estate, gift, or alternative minimum tax considerations, or any U.S. state, local, or non-U.S. tax considerations of the ownership and disposition of the ADSs.

This description is based on the U.S. Internal Revenue Code of 1986, as amended, or the Code; existing, proposed and temporary U.S. Treasury Regulations promulgated thereunder, administrative and judicial interpretations thereof; and the income tax treaty between Belgium and the United States in each case as of and available on the date hereof. All the foregoing is subject to change, which change could apply retroactively, and to differing interpretations, all of which could affect the tax considerations described below. There can be no assurances that the U.S. Internal Revenue Service, or the IRS, will not take a contrary or different position concerning the tax consequences of ownership and disposition of the ADSs or that such a position would not be sustained. Holders should consult their own tax advisers concerning the

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U.S. federal, state, local and non-U.S. tax consequences of owning, and disposing of the ADSs in their particular circumstances.

For the purposes of this summary, a “U.S. holder” is a beneficial owner of ADSs that is (or is treated as), for U.S. federal income tax purposes:

● an individual who is a citizen or resident of the United States;

● a corporation, or other entity that is treated as a corporation for U.S. federal income tax purposes, created or organized in or under the laws of the United States, any state thereof, or the District of Columbia;

● an estate, the income of which is subject to U.S. federal income taxation regardless of its source; or

● a trust, if a court within the United States is able to exercise primary supervision over its administration and one or more U.S. persons have the authority to control all of the substantial decisions of such trust or has a valid election in effect under applicable U.S. Treasury Regulations to be treated as a United States person.

If a partnership (or any other entity treated as a partnership for U.S. federal income tax purposes) holds ADSs, the U.S. federal income tax consequences relating to an investment in the ADSs will depend in part upon the status of the partner and the activities of the partnership. Such a partner or partnership should consult its tax advisor regarding the U.S. federal income tax considerations of owning and disposing of the ADSs in its particular circumstances.

In general, a U.S. holder who owns ADSs will be treated as the beneficial owner of the underlying shares represented by those ADSs for U.S. federal income tax purposes. Accordingly, no gain or loss will generally be recognized if a U.S. holder exchanges ADSs for the underlying shares represented by those ADSs.

The U.S. Treasury has expressed concern that parties to whom ADSs are released before shares are delivered to the depositary (“pre-release”), or intermediaries in the chain of ownership between holders and the issuer of the security underlying the ADSs, may be taking actions that are inconsistent with the claiming of foreign tax credits by holders of ADSs. These actions would also be inconsistent with the claiming of the reduced rate of tax, described below, applicable to dividends received by certain non-corporate holders. Accordingly, the creditability of Belgian taxes, and the availability of the reduced tax rate for dividends received by certain non-corporate U.S. holders, each described below, could be affected by actions taken by such parties or intermediaries.

As indicated below, this discussion is subject to U.S. federal income tax rules applicable to a “passive foreign investment company,” or a PFIC.

Persons considering an investment in the ADSs should consult their own tax advisors as to the particular tax consequences applicable to them relating to ownership and disposition of the ADSs, including the applicability of U.S. federal, state and local tax laws and non-U.S. tax laws.

Distributions. Although we do not currently plan to pay dividends, and subject to the discussion under “—Passive Foreign Investment Company Considerations” below, the gross amount of any distribution (before reduction for any amounts withheld in respect of Belgian withholding tax) actually or constructively received by a U.S. holder with respect to ADSs will be taxable to the U.S. holder as a dividend to the extent of the U.S. holder’s pro rata share of our current and accumulated earnings and profits as determined under U.S. federal income tax principles. Distributions in excess of earnings and profits will be non-taxable to the U.S. holder to the extent of, and will be applied against and reduce, the U.S. holder’s adjusted tax basis in the ADSs. Distributions in excess of earnings and profits and such adjusted tax basis will generally be taxable to the U.S. holder as either long-term or short-term capital gain depending upon whether the U.S. holder has held the ADSs for more than one year as of the time such distribution is received. However, since we do not calculate our earnings and profits under U.S. federal income tax principles, it is expected that any distribution will be reported as a dividend, even if that distribution would otherwise be treated as a non-taxable return of capital or as capital gain under the rules described above. Noncorporate U.S. holders may qualify for the preferential rates of taxation with respect to dividends on ADSs applicable to long-term capital gains (i.e., gains from the sale of capital assets held for more than one year) applicable to qualified dividend income (as discussed below) if we are a “qualified foreign corporation” and certain other requirements (discussed below) are met. A non-U.S. corporation (other than a corporation that is classified as a PFIC for the taxable year in which the dividend is paid or the preceding taxable year) generally will

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be considered to be a qualified foreign corporation (a) if it is eligible for the benefits of a comprehensive tax treaty with the United States which the Secretary of Treasury of the United States determines is satisfactory for purposes of this provision and which includes an exchange of information provision, or (b) with respect to any dividend it pays on ADSs which are readily tradable on an established securities market in the United States. The ADSs are listed on the Nasdaq Global Select Market, or Nasdaq, which is an established securities market in the United States, and we expect the ADSs to be readily tradable on Nasdaq. However, there can be no assurance that the ADSs will be considered readily tradable on an established securities market in the United States in later years. We are incorporated under the laws of Belgium, and we believe that we qualify as a resident of Belgium for purposes of, and are eligible for the benefits of, The Convention between the Government of the United States of America and the Government of the Kingdom of Belgium for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income, signed on November 27, 2006, or the U.S.-Belgium Tax Treaty, although there can be no assurance in this regard. Further, the IRS has determined that the U.S.-Belgium Tax Treaty is satisfactory for purposes of the qualified dividend rules and that it includes an exchange-of-information program. Therefore, subject to the discussion under “—Passive Foreign Investment Company Considerations” below, such dividends will generally be “qualified dividend income” in the hands of individual U.S. holders, provided that a holding period requirement (more than 60 days of ownership, without protection from the risk of loss, during the 121-day period beginning 60 days before the ex-dividend date) and certain other requirements are met. The dividends will not be eligible for the dividends-received deduction generally allowed to corporate U.S. holders.

A U.S. holder generally may claim the amount of any Belgian withholding tax as either a deduction from gross income or a credit against U.S. federal income tax liability. However, the foreign tax credit is subject to numerous complex limitations that must be determined and applied on an individual basis. Generally, the credit cannot exceed the same proportion of a U.S. holder’s U.S. federal income tax liability which such U.S. holder’s “foreign source” taxable income bears to such U.S. holder’s worldwide taxable income. In applying this limitation, a U.S. holder’s various items of income and deduction must be classified, under complex rules, as either “foreign source” or “U.S. source.” In addition, this limitation is calculated separately with respect to specific categories of income. The amount of a distribution with respect to the ADSs that is treated as a “dividend” may be lower for U.S. federal income tax purposes than it is for Belgian income tax purposes, potentially resulting in a reduced foreign tax credit for the U.S. holder. Furthermore, Belgian income taxes that are withheld in excess of the rate applicable under the U.S.-Belgium Tax Treaty or that are refundable under Belgian law will not be eligible for credit against a U.S. holder’s federal income tax liability. Each U.S. holder should consult its own tax advisors regarding the foreign tax credit rules.

In general, the amount of a distribution paid to a U.S. holder in a foreign currency will be the dollar value of the foreign currency calculated by reference to the spot exchange rate on the day the U.S. holder receives the distribution, regardless of whether the foreign currency is converted into U.S. dollars at that time. Any foreign currency gain or loss a U.S. holder realizes on a subsequent conversion of foreign currency into U.S. dollars will be U.S. source ordinary income or loss. If dividends received in a foreign currency are converted into U.S. dollars on the day they are received, a U.S. holder should not be required to recognize foreign currency gain or loss in respect of the dividend.

Sale, Exchange or Other Taxable Disposition of the ADSs. A U.S. holder will generally recognize gain or loss for U.S. federal income tax purposes upon the sale, exchange or other taxable disposition of ADSs in an amount equal to the difference between the U.S. dollar value of the amount realized from such sale or exchange and the U.S. holder’s tax basis for those ADSs. Subject to the discussion under “—Passive Foreign Investment Company Considerations” below, this gain or loss will generally be a capital gain or loss. The adjusted tax basis in the ADSs generally will be equal to the cost of such ADSs. Capital gain from the sale, exchange or other taxable disposition of ADSs of a non-corporate U.S. holder is generally eligible for a preferential rate of taxation applicable to capital gains, if the non-corporate U.S. holder’s holding period determined at the time of such sale, exchange or other taxable disposition for such ADSs exceeds one year (i.e., such gain is a long-term taxable gain). The deductibility of capital losses for U.S. federal income tax purposes is subject to limitations. Any such gain or loss that a U.S. holder recognizes generally will be treated as U.S. source income or loss for foreign tax credit limitation purposes.

For a cash basis taxpayer, units of foreign currency paid or received are translated into U.S. dollars at the spot rate on the settlement date of the purchase or sale. In that case, no foreign currency exchange gain or loss will result from currency fluctuations between the trade date and the settlement date of such a purchase or sale. An accrual basis taxpayer, however, may elect the same treatment required of cash basis taxpayers with respect to purchases and sales of the ADSs that are traded on an established securities market, provided the election is applied consistently from year to year. Such election may not be changed without the consent of the IRS. For an accrual basis taxpayer that does not make

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such an election, units of foreign currency paid or received are translated into U.S. dollars at the spot rate on the trade date of the purchase or sale. Such an accrual basis taxpayer may recognize exchange gain or loss based on currency fluctuations between the trade date and the settlement date. Any foreign currency gain or loss a U.S. holder realizes will be U.S. source ordinary income or loss.

Net Investment Income Tax. Certain U.S. holders that are individuals, estates or trusts are subject to a 3.8% tax on all or a portion of their “net investment income,” which may include all or a portion of their dividend income and net gains from the disposition of ADSs. Each U.S. holder that is an individual, estate or trust is urged to consult its tax advisors regarding the applicability of the Net Investment Income tax to its income and gains in respect of its investment in the ADSs.

Passive Foreign Investment Company Considerations. If we are a PFIC for any taxable year, a U.S. holder would be subject to special rules generally intended to reduce or eliminate any benefits from the deferral of U.S. federal income tax that a U.S. holder could derive from investing in a non-U.S. company that does not distribute all of its earnings on a current basis.

A corporation organized outside the United States generally will be classified as a PFIC for U.S. federal income tax purposes in any taxable year in which, after applying certain look-through rules with respect to the income and assets of its subsidiaries, either: (i) at least 75% of its gross income is “passive income” or (ii) at least 50% of the average quarterly value of its total gross assets, for which purpose, assuming we are treated as a publicly traded company pursuant to Section 1297(e)(3) of the Code, the total value of our assets may be determined in part by reference to the market value of its ADSs and ordinary shares, which is subject to change) is attributable to assets that produce “passive income” or are held for the production of “passive income.”

Passive income for this purpose generally includes dividends, interest, royalties, rents, gains from commodities and securities transactions, the excess of gains over losses from the disposition of assets which produce passive income, and includes amounts derived by reason of the temporary investment of cash, including the funds raised in offerings of the ADSs. If a non-U.S. corporation owns directly or indirectly at least 25% by value of the stock of another corporation, the non-U.S. corporation is treated for purposes of the PFIC tests as owning its proportionate share of the assets of the other corporation and as receiving directly its proportionate share of the other corporation’s income for purposes of the PFIC tests. If we are classified as a PFIC for any year with respect to which a U.S. holder owns ADSs, we will continue to be treated as a PFIC with respect to such U.S. holder in all succeeding years during which the U.S. holder owns ADSs, regardless of whether we continue to meet the tests described above.

Whether we are a PFIC for any taxable year will depend on the composition of our income and the projected composition and estimated fair market values of our assets in each year, and because this is a factual determination made annually after the end of each taxable year, there can be no assurance that we will not be considered a PFIC for any taxable year. The market value of our assets may be determined in large part by reference to the market price of the ADSs and our ordinary shares, which is likely to fluctuate. Based on the foregoing, with respect to our 2021 taxable year, we anticipate that we will be a PFIC based upon the expected value of our assets, including any goodwill, and the expected composition of our income and assets, however, as previously mentioned, we cannot provide any assurances regarding our PFIC status for the current, prior or future taxable years.

Because we believe we were a PFIC for the 2021 taxable year, unless you make one of the elections described below, a special tax regime will apply to both (a) any “excess distribution” by us to you (generally, your ratable portion of distributions in any year which are greater than 125% of the average annual distribution received by you in the shorter of the three preceding years or your holding period for the ADSs) and (b) any gain realized on the sale or other disposition of the ADSs. Under this regime, any excess distribution and realized gain will be treated as ordinary income and will be subject to tax as if (a) the excess distribution or gain had been realized ratably over your holding period, (b) the amount deemed realized in each year had been subject to tax in each year of that holding period at the highest marginal rate for such year (other than income allocated to the current period or any taxable period before we became a PFIC, which would be subject to tax at the U.S. holder’s regular ordinary income rate for the current year and would not be subject to the interest charge discussed below), and (c) the interest charge generally applicable to underpayments of tax had been imposed on the taxes deemed to have been payable in those years. In addition, dividend distributions made to you will not qualify for the lower rates of taxation applicable to long-term capital gains discussed above under “—Distributions.”

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Certain elections exist that would result in an alternative treatment (such as mark-to-market treatment) of the ADSs. If a U.S. holder makes the mark-to-market election, the U.S. holder generally will recognize as ordinary income any excess of the fair market value of the ADSs at the end of each taxable year over their adjusted tax basis, and will recognize an ordinary loss in respect of any excess of the adjusted tax basis of the ADSs over their fair market value at the end of the taxable year (but only to the extent of the net amount of income previously included as a result of the mark-to-market election). If a U.S. holder makes the election, the U.S. holder’s tax basis in the ADSs will be adjusted to reflect these income or loss amounts. Any gain recognized on the sale or other disposition of ADSs in a year when we are a PFIC will be treated as ordinary income and any loss will be treated as an ordinary loss (but only to the extent of the net amount of income previously included as a result of the mark-to-market election). The mark-to-market election is available only if we are a PFIC and the ADSs are “regularly traded” on a “qualified exchange.” The ADSs will be treated as “regularly traded” in any calendar year in which more than a de minimis quantity of the ADSs are traded on a qualified exchange on at least 15 days during each calendar quarter (subject to the rule that trades that have as one of their principal purposes the meeting of the trading requirement as disregarded). Nasdaq is a qualified exchange for this purpose and, consequently, if the ADSs are regularly traded, the mark-to-market election will be available to a U.S. holder.

Because we believe we were a PFIC for the 2021 taxable year, we must generally continue to be treated as a PFIC by that U.S. holder for all succeeding years during which the U.S. holder holds the ADSs, unless we cease to meet the requirements for PFIC status and the U.S. holder makes a “deemed sale” election with respect to the ADSs. If such election is made, the U.S. holder will be deemed to have sold the ADSs it holds at their fair market value on the last day of the last taxable year in which we qualified as a PFIC, and any gain from such deemed sale would be subject to the consequences applicable to sales of PFIC shares described above. After the deemed sale election, the U.S. holder’s ADSs with respect to which the deemed sale election was made will not be treated as shares in a PFIC unless we subsequently become a PFIC.

The tax consequences that apply if we are a PFIC would also be different from those described above if a U.S. holder were able to make a valid “qualified electing fund,” or QEF, election. Because we were a PFIC for the 2021 taxable year, we will provide information necessary for our shareholders to make a QEF election with respect to us for the 2021 taxable year and expect to provide such information for any subsequent year if we believe we are a PFIC. We will provide such information on our website. A U.S. holder that makes a QEF election with respect to our shares is required to include a pro rata share of our income on a current basis, whether or not we make distributions. U.S. holders should consult their tax advisors to determine whether any of these above elections would be available and if so, what the consequences of the alternative treatments would be in their particular circumstances.

Because we believe we were a PFIC for the 2021 taxable year, the general tax treatment for U.S. holders described in this section would apply to indirect distributions and gains deemed to be realized by U.S. holders in respect of any of our subsidiaries that also may be determined to be PFICs (“lower-tier PFICs”).

If a U.S. holder owns ADSs during any taxable year in which we are a PFIC, the U.S. holder generally will be required to file an IRS Form 8621 (Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund) with respect to the company and any lower-tier PFICs, generally with the U.S. holder’s federal income tax return for that year.

The U.S. federal income tax rules relating to PFICs are complex. Prospective U.S. investors are urged to consult their own tax advisers with respect to ownership and disposition of the ADSs, the consequences to them of an investment in a PFIC, any elections available with respect to the ADSs and the IRS information reporting obligations with respect to ownership and disposition of the ADSs.

Backup Withholding and Information Reporting. U.S. holders generally will be subject to information reporting requirements with respect to dividends on ADSs and on the proceeds from the sale, exchange or disposition of ADSs that are paid within the United States or through U.S.-related financial intermediaries, unless the U.S. holder is an “exempt recipient.” In addition, U.S. holders may be subject to backup withholding on such payments, unless the U.S. holder provides a correct taxpayer identification number and a duly executed IRS Form W-9 or otherwise establishes an exemption. Backup withholding is not an additional tax, and the amount of any backup withholding will be allowed as a credit against a U.S. holder’s U.S. federal income tax liability and may entitle such holder to a refund, provided that the required information is timely furnished to the IRS.

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Foreign Asset Reporting. Certain U.S. holders who are individuals and certain entities controlled by individuals may be required to report information relating to an interest in the ADSs, subject to certain exceptions (including an exception for shares held in accounts maintained by U.S. financial institutions) by filing IRS Form 8938 (Statement of Specified Foreign Financial Assets) with their federal income tax return. U.S. holders are urged to consult their tax advisors regarding their information reporting obligations, if any, with respect to their ownership and disposition of the ADSs.

THE DISCUSSION ABOVE IS A GENERAL SUMMARY. IT DOES NOT COVER ALL TAX MATTERS THAT MAY BE OF IMPORTANCE TO A PROSPECTIVE INVESTOR. EACH PROSPECTIVE INVESTOR IS URGED TO CONSULT ITS OWN TAX ADVISOR ABOUT THE TAX CONSEQUENCES TO IT OF AN INVESTMENT IN ADSS IN LIGHT OF THE INVESTOR’S OWN CIRCUMSTANCES.

Belgian tax consequences

The following paragraphs are a summary of material Belgian tax consequences of the ownership and disposal by an investor of ADSs representing our shares. The summary is based on laws, treaties and regulatory interpretations in effect in Belgium on the date of this Form 20-F, all of which are subject to change, including changes that could have retroactive effect.

The summary only discusses Belgian tax aspects which are relevant to U.S. holders of ADSs representing our shares, or “Holders”. This summary does not address Belgian tax aspects which are relevant to persons who are fiscally resident in Belgium or who are engaged in a business in Belgium through a permanent establishment or a fixed base in Belgium to which the ADSs are effectively connected.

This summary does not purport to be a description of all of the tax consequences of the ownership and disposal of ADSs representing our shares, and does not take into account the specific circumstances of any particular investor, some of which may be subject to special rules, or the tax laws of any country other than Belgium. This summary does not describe all tax consequences of investors that are subject to special rules, such as banks, insurance companies, collective investment undertakings, dealers in securities or currencies, persons that hold, or will hold, ADSs representing our shares as a position in a straddle, share-repurchase transaction, conversion transactions, synthetic security or other integrated financial transactions. Investors should consult their own advisers regarding the tax consequences of an investment in ADSs representing our shares in the light of their particular circumstances, including the effect of any state, local or other national laws.

In addition to the assumptions mentioned above, it is also assumed in this discussion that for purposes of the domestic Belgian tax legislation, the owners of ADSs will be treated as the owners of the ordinary shares represented by such ADSs. However, the assumption has not been confirmed by or verified with the Belgian Tax Authorities.

Dividend withholding tax

For Belgian income tax purposes, the gross amount of all benefits paid on or attributed to the ordinary shares represented by the ADSs is generally treated as a dividend distribution. By way of exception, the repayment of fiscal capital carried out in accordance with the Belgian Companies and Associations Code is not treated as a dividend distribution to the extent that such repayment is imputed to the fiscal capital (subject to certain conditions and the pro rata rule, see below). This fiscal capital includes, in principle, the actual paid-up statutory share capital and, subject to certain conditions, the paid-up issuance premiums and the cash amounts subscribed to at the time of the issue of profit sharing certificates. However, for any decision of capital reduction, in accordance with the Belgian Companies and Associations Code, the amount of the capital reduction will be deemed to be derived proportionally (a) from the fiscal capital of our company, on the one hand and (b) on the other hand, from certain reserves (i.e., and in the following order: (i) certain taxed reserves incorporated in the capital of our company, (ii) certain taxed reserves not incorporated into the capital of our company and (iii) certain tax-exempt reserves incorporated into the capital of our company). Only the part of the capital reduction that is deemed to be paid out of the fiscal capital may, subject to certain conditions, not be considered as a dividend distribution for Belgian tax purposes. The part of the capital reduction that is deemed to be derived from the abovementioned taxed (irrespective of whether they are incorporated into the capital) and/or tax-exempt reserves incorporated into the capital will be treated as a dividend distribution from a tax perspective and be subject to Belgian withholding tax, if applicable. Such portion is determined on the basis of the ratio of the taxed reserves (except for the legal reserve up to the legal minimum and certain unavailable retained earnings) and the tax-

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exempt reserves incorporated into the capital (with a few exceptions) over the aggregate of such reserves and the fiscal capital.

As a general rule, a withholding tax of 30% is levied on the gross amount of dividends paid on or attributed to the ordinary shares represented by the ADSs, subject to such relief as may be available under applicable domestic or tax treaty provisions. In case of a redemption by us of our own shares represented by ADSs, the redemption distribution (after deduction of the portion of fiscal capital represented by the redeemed shares) will be treated as a dividend which in principle is subject to the withholding tax of 30%, subject to such relief as may be available under applicable domestic or tax treaty provisions. In case of a liquidation of our company, any amounts distributed in excess of the fiscal capital will also be treated as a dividend, and will in principle be subject to a 30% withholding tax, subject to such relief as may be available under applicable domestic or tax treaty provisions. No Belgian withholding tax will be triggered if this redemption is carried out on a stock exchange and meets certain conditions. For non-residents the dividend withholding tax, if any, will be the only tax on dividends in Belgium, unless the non-resident is engaged in a business in Belgium through a fixed base in Belgium or a Belgian permanent establishment to which the ADSs are effectively connected. Prospective Holders should consult their own advisors regarding the tax consequences in case the ADSs are effectively connected to a fixed base or a permanent establishment in Belgium.

Relief of Belgian Dividend Withholding Tax

Under the U.S.-Belgium Tax Treaty, under which we are entitled to benefits accorded to residents of Belgium, there is a reduced Belgian withholding tax rate of 15% on dividends paid by us to a U.S. resident which beneficially owns the dividends and is entitled to claim the benefits on the U.S.-Belgium Tax Treaty under the limitation on benefits article included in the U.S.-Belgium Tax Treaty, or “Qualifying Holders”.

If such Qualifying Holder is a company that owns directly at least 10% of our voting stock, the Belgian withholding tax rate is further reduced to 5%. No withholding tax is however applicable, if the Qualifying Holder does not carry on a business in Belgium through a permanent establishment situated therein, with which our shares, represented by the ADSs, are effectively connected and is either of the following:

● a company that is a resident of the United States that has directly owned our shares, represented by the ADSs, representing at least 10% of our capital for a twelve-month period ending on the date the dividend is declared, or

● a pension fund in the meaning of Article 3, (1), (k) of the U.S.-Belgium Tax Treaty, that is a resident of the United States, provided that such dividends are not derived from the carrying on of a business by the pension fund or through an associated enterprise.

Under the normal procedure, we or our paying agent must withhold the full Belgian withholding tax, without taking into account the reduced U.S.- Belgium Tax Treaty rate. Qualifying Holders may then make a claim for reimbursement for amounts withheld in excess of the rate defined by the U.S.- Belgium Tax Treaty. The reimbursement form (Form 276 Div-Aut.) can be obtained as follows:

● by letter from KMO Centrum Specifieke Materies - Team 6 - Kruidtuinlaan 50, mailbox 3429, B-1000 Brussels, Belgium;

● by telephone at +32 (0)2 572 57 57 + call code 17486;

● via e-mail at foreigners.team6@minfin.fed.be; or at

● https://financien.belgium.be/nl/ondernemingen/internationaal/terugbetaling-van-de-roerende-voorheffing#q1.

The reimbursement form is to be sent to KMO Centrum Specifieke Materies - Team 6 - Kruidtuinlaan 50, mailbox 3429, B-1000 Brussels, Belgium as soon as possible and in each case within a term of five years starting from the first of January of the year the withholding tax was paid to the Belgian Treasury.

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Qualifying Holders may also, subject to certain conditions, obtain the reduced U.S.-Belgium Tax Treaty rate at source. Qualifying Holders should deliver a duly completed Form 276 Div-Aut. to us no later than ten days after the date on which the dividend has been paid or attributed (whichever comes first).

Additionally, pursuant to Belgian domestic tax law, dividends paid or attributed to non-resident individuals who do not use our shares represented by ADSs in the exercise of a professional activity may be exempt from non-resident individual income tax up to the amount of 800 EUR (for income year 2021). Consequently, if Belgian withholding tax has been levied on dividends paid or attributed to our shares represented by ADSs, such Belgian non-resident may request in his or her non-resident income tax return that any Belgian withholding tax levied on dividends up to the amount of EUR 800 (for income year 2021) be credited and, as the case may be, reimbursed. However, if no Belgian non-resident income tax return has to be filed by the non-resident individual, any Belgian withholding tax levied on dividends up to such an amount could in principle be reclaimed by filing a request thereto addressed to the designated tax official. Such a request has to be made at the latest on December 31 of the calendar year following the calendar year in which the relevant dividend(s) have been received, together with an affidavit confirming the non-resident individual status and certain other formalities which are determined by Royal Decree. For the avoidance of doubt, all dividends paid or attributed to the non-resident individual are taken into account to assess whether the maximum amount of EUR 800 (for income year 2021) is reached (and hence not only the amount of dividends paid or attributed on our shares represented by ADSs).

Additionally, pursuant to Belgian domestic tax law, dividends distributed to corporate Holders beneficially owning the dividends that qualify as a parent company will be exempt from Belgian withholding tax, provided that the shares which are represented by ADSs held by the Holder amount to at least 10% of our share capital upon payment or attribution of the dividends and such minimum participation is held or will be held during an uninterrupted period of at least one year, and provided the general anti-abuse provision does not apply. A Holder-beneficial owner qualifies as a parent company (i) if it has a legal form similar to the ones listed in the annex to the Parent-Subsidiary Directive as amended from time to time, (ii) if it is considered to be a tax resident according to the laws of the United States of America and the U.S.-Belgium Tax Treaty, and (iii) if it is subject to a tax similar to the Belgian corporate income tax without benefiting from a tax regime that derogates from the ordinary tax regime. Please note that this withholding tax exemption will not be applicable to dividends which are connected to an arrangement or a series of arrangements ("rechtshandeling of geheel van rechtshandelingen"/"acte juridique ou un ensemble d'actes juridiques") for which the Belgian Tax Administration, taking into account all relevant facts and circumstances, has proven, unless evidence to the contrary, that this arrangement or this series of arrangements is not genuine ("kunstmatig"/"non authentique") and has been put in place for the main purpose or one of the main purposes of obtaining the dividend received deduction, the above dividend withholding tax exemption or one of the advantages of the Parent-Subsidiary Directive in another EU Member State. An arrangement or a series of arrangements is regarded as not genuine to the extent that they are not put into place for valid commercial reasons which reflect economic reality.

In order to benefit from this exemption, the Holder must provide us or our paying agent with a certificate confirming its qualifying status and the fact that it satisfies the abovementioned conditions.

If the Holder holds the above-mentioned minimum participation for less than one year, at the time the dividends are paid on or attributed to the shares represented by the ADSs, we must levy the withholding tax but we do not need to transfer it to the Belgian Treasury provided that the Holder provides us or our paying agent, at the latest upon the attribution of the dividends, its qualifying status, with a certificate confirming – in addition to its qualifying status and the fulfilment of the relevant conditions – , the date as of which the Holder has held the minimum participation, and the Holder’s commitment to hold it for an uninterrupted period of at least one year. The Holder must also inform us or our paying agent when the one-year period has expired or if its shareholding drops below 10% of our share capital before the end of the one-year holding period. Upon satisfying the one-year shareholding requirement, the dividend withholding tax which was temporarily withheld will be paid to the Holder.

Dividends paid or attributed to a corporate Holder beneficially owning the dividend income will also be exempt from withholding tax, provided that (i) the Holder is subject to corporate income tax or a similar tax without benefiting from a tax regime that derogates from the ordinary tax regime, (ii) upon the date of payment or attribution of the dividends, the Holder holds a participation in us with an acquisition value of at least € 2,500,000, but representing less than 10% of our capital, (iii) the dividends relate to shares represented by the ADSs which are or will be held in full ownership for at least one year without interruption, (iv) the Holder has a legal form similar to the ones listed in the annex to the Parent-Subsidiary Directive, as amended from time to time and (v) the general anti-abuse provision is not

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be applicable. The exemption from withholding tax is only applicable to the extent that the ordinary Belgian withholding tax, which would be due in the absence of said exemption, is, in principle, neither creditable nor reimbursable in the hands of the Holder.

In order to benefit from the above exemption of withholding tax, the corporate Holder must provide us or our paying agent with a certificate confirming (i) that it has a legal form as described above, (ii) that it is subject to corporate income tax or a similar tax without benefiting from a tax regime that deviates from the ordinary domestic tax regime, (iii) that it holds a participation of less than 10% in our capital, but with an acquisition value of at least € 2,500,000 upon the date of payment or attribution of the dividend, (iv) that the dividends relate to shares in us represented by the ADSs which it has held or will hold in full legal ownership for an uninterrupted period of at least one year, (v) to which extent it could in principle, in case this exemption would not exist, credit the levied Belgian withholding tax or obtain a reimbursement thereof according to the legal provisions applicable on December 31st of the year preceding the year of the payment or attribution of the dividends, and (vi) its full name, legal form, address and fiscal identification number, if applicable. Furthermore, we or our paying agent may also request confirmation from the Holder that the Holder commits to keep the participation with an acquisition value of at least € 2,500,000 until the completion of the minimum holding period of one year and that the Holder immediately notifies us or our paying agent of the completion of said one year holding period.

Withholding tax is also not applicable, pursuant to Belgian domestic tax law, on dividends paid to a U.S. pension fund which satisfies the following conditions:

(i) to be a legal entity with separate legal personality and fiscal residence in the United States,

(ii) whose corporate purpose consists solely in managing and investing funds collected in order to pay legal or complementary pensions,

(iii) whose activity is limited to the investment of funds collected in the exercise of its statutory mission, without any profit making aim,

(iv) which is exempt from income tax in the United States, and

(v) provided that it (save in certain particular cases as described in Belgian law) is not contractually obligated to redistribute the dividends to any ultimate beneficiary of such dividends for whom it would manage our shares or ADSs, nor obligated to pay a manufactured dividend with respect to our shares or ADSs under a securities borrowing transaction.

The exemption will only apply if the U.S. pension fund provides an affidavit confirming that it is the full legal owner or usufruct holder of our shares or ADSs and that the above conditions are satisfied. The organization must then forward that affidavit to us or our paying agent.

Please note that the above withholding tax exemption will not be applicable to dividends which are connected to an arrangement or a series of arrangements ("rechtshandeling of geheel van rechtshandelingen"/"acte juridique ou un ensemble d'actes juridiques") for which the Belgian Tax Administration, taking into account all relevant facts and circumstances, has proven, unless evidence to the contrary, that this arrangement or this series of arrangements is not genuine ("kunstmatig"/"non authentique") and has been put in place for the main purpose or one of the main purposes of obtaining the dividend received deduction, the above dividend withholding tax exemption or one of the advantages of the Parent-Subsidiary Directive in another EU Member State. An arrangement or a series of arrangements is regarded as not genuine to the extent that they are not put into place for valid commercial reasons which reflect economic reality. There is a rebuttable presumption that dividends are deemed to be connected to an artificial transaction if the shares have not been held by the pension fund in full legal ownership for an uninterrupted period of at least 60 days within 15 days from the date of the attribution or payment of the income.

Prospective Holders are encouraged to consult their own tax advisers to determine whether they qualify for an exemption or a reduction of the withholding tax rate upon payment of dividends and, if so, the procedural requirements for obtaining such an exemption or a reduction upon the payment of dividends or making claims for reimbursement.

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Capital gains and losses

Pursuant to the U.S.-Belgium Tax Treaty, capital gains and/or losses realized by a Qualifying Holder entitled to claim the benefits of the U.S.- Belgium Tax Treaty under the limitation of benefits article in the U.S.-Belgium Tax Treaty from the sale, exchange or other disposition of our shares represented by ADSs are exempt from tax in Belgium.

Capital gains realized on our shares represented by ADSs by a corporate Holder who is not such a Qualifying Holder are generally not subject to taxation in Belgium unless these ADSs are held in connection with a business conducted in Belgium through a Belgian permanent establishment or a fixed place in Belgium to which the ADSs are effectively connected (in which case a 25% or 0% tax on the capital gain may apply, depending on the particular circumstances). Capital losses are generally not tax deductible in Belgium.

Private individual Holders who are not such Qualifying Holders and who are holding our shares represented by ADSs as a private investment and within the bounds of the normal management of one’s private estate will, as a rule, not be subject to tax in Belgium on any capital gains arising out of a disposal of our shares represented by ADSs.

Capital losses will, as a rule, not be tax deductible in Belgium. Capital gains realized by a Holder upon the redemption of shares represented by ADSs or upon our liquidation will generally be taxable as a dividend. See “— Dividend Withholding Tax” above.

Estate and gift tax

There is no Belgian estate tax on the transfer of our shares represented by ADSs on the death of a Belgian non-resident. Donations of our shares represented by ADSs made in Belgium may or may not be subject to gift tax depending on the modalities under which the donation is carried out.

Belgian Tax on Securities Accounts

Parliament adopted on February 11, 2021 a bill submitted by the Belgian federal government introducing an annual tax on securities accounts. This bill was published in the Belgian State Gazette on February 25, 2021 and entered into force, subject to certain exceptions, on February 26, 2021.

An annual tax of 0.15% is levied on securities accounts of which the average value of the taxable financial instruments (covering, amongst others, financial instruments such as our shares represented by ADSs) held thereon during a reference period of twelve consecutive months (in principle) starting on October 1 and ending on September 30 of the subsequent year, would exceed EUR 1 million. The first reference period begins on February 26, 2021 and ends on September 30, 2021.

The amount of the tax due is limited to 10% of the difference between said average value of the taxable financial instruments, and the threshold of EUR 1 million.

The tax targets, among others, securities accounts held by non-resident individuals, companies and legal entities with a financial intermediary established or located in Belgium.

A financial intermediary is defined as (i) the National Bank of Belgium, the European Central Bank and foreign central banks performing similar functions, (ii) a central securities depository included in article 198/1, §6, 12° of the Belgian Income Tax Code, (iii) a credit institution or a stockbroking firm as defined by Article 1, §3 of the Law of April 25, 2014 on the status and supervision of credit institutions and investment companies and (vi) the investment companies as defined by Article 3, §1 of the Law of October 25, 2016 on access to the activity of investment services and on the legal status and supervision of portfolio management and investment advice companies, which are, pursuant to national law, admitted to hold financial instruments for the account of customers.

There are various exemptions, such as securities accounts (in)directly held by non-residents for their own account at central securities depositories or at a depositary bank accredited by the National Bank of Belgium. This exemption is subject to the condition that the securities accounts are not attributable to a Belgian branch of the non-residents.

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Pursuant to the bill, anti-abuse provisions, retroactively applying as from October 30, 2020, are also introduced: a rebuttable general anti-abuse provision and two irrebuttable specific anti-abuse provisions. The latter covers the splitting of a securities account into multiple securities accounts held at the same intermediary and the conversion of taxable financial instruments held on a securities account, into registered financial instruments.

It must be noted that several annulment procedures against the bill have been initiated before the Constitutional Court. The plaintiffs consider the tax to be discriminative and have based their requests on a variety of arguments, such as unequal treatment and a lack of clarity of the law. Presumably, a decision of the Court will only follow end 2022.

Belgian tax on stock exchange transactions

The purchase and the sale and any other acquisition or transfer for consideration by a Holder of existing shares represented by ADSs (secondary market transactions) is subject to the Belgian tax on stock exchange transactions (“taks op de beursverrichtingen” / “taxe sur les opérations de bourse”) if it is entered into or carried out in Belgium through a professional intermediary. The tax on stock exchange transactions is not due upon the issuance of new shares represented by ADSs (primary market transactions). The tax on stock exchange transactions is levied at a rate of 0.35% of the purchase/sales price, capped at € 1,600 per transaction and per party. A separate tax is due by each party to any such transaction, and both taxes are in principle collected by the professional intermediary.

Belgian non-residents who purchase or otherwise acquire or transfer, for consideration, existing shares represented by ADSs in Belgium for their own account through a professional intermediary may be exempt from the stock exchange tax if they deliver a certificate to the financial intermediary in Belgium confirming their non-resident status.

In addition to the above, no tax on stock exchange transactions is due on transactions entered into by the following parties, provided they are acting for their own account: (i) professional intermediaries described in Article 2, 9° and 10° of the Law of August 2, 2002, (ii) insurance companies described in Article 2, §1 of the Law of July 9, 1975 (as replaced by Article 5 of the Law of March 13, 2016 on the status and supervision of insurance and reinsurance undertakings), (iii) professional retirement institutions referred to in Article 2, §1 of the Law of October 27, 2006 relating to the control of professional retirement institutions, (iv) collective investment institutions, or (v) regulated real estate companies, (vi) the aforementioned non-residents (upon delivery of a certificate of non-residency in Belgium).

No stock exchange tax will thus be due by Holders on the subscription, purchase or sale of existing shares represented by ADSs, if the Holders are acting for their own account. In order to benefit from this exemption, the Holders must deliver a certificate to their financial intermediary in Belgium confirming their non-resident status for Belgian tax purposes.

The European Commission has published a proposal for a Directive for a common financial transactions tax (the “FTT”). The proposal currently stipulates that once the FTT enters into force, the participating Member States shall not maintain or introduce taxes on financial transactions other than the FTT (or VAT as provided in the Council Directive 2006/112/EC of November 28, 2006 on the common system of value added tax). For Belgium, the tax on stock exchange transactions should thus be abolished once the FTT enters into force. The proposal is still subject to negotiation between the participating Member States and therefore may be changed at any time.

Common Reporting Standard

Following recent international developments, the exchange of information is governed by the Common Reporting Standard (“CRS”). On September 25, 2021, the total of jurisdictions that have signed the multilateral competent authority agreement (“MCAA”) amounts to 114. The MCAA is a multilateral framework agreement to automatically exchange financial and personal information, with the subsequent bilateral exchanges coming into effect between those signatories that file the subsequent notifications.

Under CRS, financial institutions resident in a CRS country are required to report, according to a due diligence standard, financial information with respect to reportable accounts, which includes interest, dividends, account balance or value, income from certain insurance products, sales proceeds from financial assets and other income generated with respect to assets held in the account or payments made with respect to the account. Reportable accounts include accounts held by individuals and entities (which include trusts and foundations) with fiscal residence in another CRS country. The standard includes a requirement to look through passive entities to report on the relevant controlling persons.

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On December 9, 2014, EU Member States adopted Directive 2014/107/EU on administrative cooperation in direct taxation (“DAC2”), which provides for mandatory automatic exchange of financial information as foreseen in CRS. DAC2 amends the previous Directive on administrative cooperation in direct taxation, Directive 2011/16/EU and replaces the EC Council Directive 2003/48EC on the taxation of savings income (commonly referred to as the “Savings Directive”) as from January 1, 2016. Austria has been nonetheless allowed to exchange information under DAC2 as from January 1, 2017.

On May 27, 2015, Switzerland signed an agreement with the European Union in order to implement, as from January 1, 2017, an automatic exchange of information based on the CRS. This new agreement will replace the agreement on the taxation of savings that entered into force in 2005. As from January 1, 2017, financial institutions in the EU and Switzerland apply the due diligence procedures envisaged under the new agreement to identify customers who are reportable persons, i.e., for Switzerland residents of any EU Member State. This data was exchanged for the first time in autumn 2018.

As a result of the Law of December 16, 2015, the mandatory automatic exchange of information applies in Belgium (i) as of income year 2016 (first information exchange in 2017) towards the EU Member States (including Austria, irrespective of the fact that the automatic exchange of information by Austria towards other EU Member States is only foreseen as of income year 2017), (ii) as of income year 2014 (first information exchange in 2016) towards the US and (iii), with respect to any other non-EU States that have signed the MCAA, as of income year 2016 (first information exchange in 2017) for a first list of 18 countries, as of income year 2017 (first information exchange in 2018) for a second list of 44 countries, as of income year 2018 (first information exchange in 2019) for a third list of 1 country and as of income year 2019 (first information exchange in 2020) for a fourth list of 6 countries.

Investors who are in any doubt as to their position should consult their professional advisers.

Proposed Financial Transactions Tax

On February 14, 2013 the EU Commission published a proposal (the “FTT Proposal”) for a Council Directive on a common Financial Transaction Tax (the “FTT”). Earlier negotiations for a common transaction tax among all 28 EU Member States had failed. The current negotiations between Austria, Belgium, France, Germany, Greece, Italy, Portugal, Slovakia, Slovenia and Spain (the “Participating Member States”) are seeking a compromise under “enhanced cooperation” rules, which require consensus from at least nine nations. Earlier Estonia dropped out of the negotiations by declaring it would not introduce the FTT.

The FTT Proposal currently stipulates that once the FTT enters into force, the Participating Member States shall not maintain or introduce taxes on financial transactions other than the FTT (or VAT as provided in the Council Directive 2006/112/EC of November 28, 2006 on the common system of value added tax). For Belgium, the tax on stock exchange transactions should thus be abolished once the FTT enters into force.

However, the FTT Proposal remains subject to negotiations between the Participating Member States. It may therefore be altered prior to any implementation, of which the eventual timing and outcome remains unclear. Additional EU Member States may decide to participate or drop out of the negotiations. If the number of Participating Member States would fall below nine, it would put an end to the legislative project.

Until recently, the FTT Proposal was at a standstill at the level of the European Council. Following the meeting of the Council of the EU of June 14, 2019, the FTT currently being considered by the FTT Participating Member States would be levied on the acquisition of shares or similar instruments of listed companies which have their head office in a member state of the EU (and market capitalisation in excess of EUR 1 billion on 1 December of the preceding year), rather than on any type of financial instrument. In order to reach a final agreement among the FTT Participating Member States, further work in the Council and its preparatory bodies will be required in order to ensure that the competences, rights and obligations of non-participating EU Member States are respected.

Prospective investors should consult their own professional advisors in relation to the FTT.

F.     Dividends and paying agents

Not applicable.

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G.     Statement by experts

Not applicable.

H.     Documents on display

We are subject to the information reporting requirements of the Exchange Act applicable to foreign private issuers and under those requirements will file reports with the SEC. Those reports may be inspected without charge at the locations described below. As a foreign private issuer, we are exempt from the rules under the Exchange Act related to the furnishing and content of proxy statements, and our officers, directors and principal shareholders are exempt from the reporting and short-swing profit recovery provisions contained in Section 16 of the Exchange Act. In addition, we are not required under the Exchange Act to file periodic reports and financial statements with the SEC as frequently or as promptly as United States companies whose securities are registered under the Exchange Act. Nevertheless, we will file with the SEC an annual report containing financial statements that have been examined and reported on, with and opinion expressed by an independent registered public accounting firm.

We maintain a corporate website at www.glpg.com. We intend to post a link to our annual report on Form 20-F as filed with the SEC on our website promptly following it being filed with the SEC. Information contained on, or that can be accessed through, our website does not constitute a part of this annual report. We have included our website address in this annual report solely as an inactive textual reference.

You may also review a copy of this annual report, including exhibits and any schedule filed herewith, and obtain copies of such materials at prescribed rates, at the SEC’s Public Reference Room in Room 1580, 100 F Street, NE, Washington, D.C. 20549-0102. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC maintains a website (www.sec.gov) that contains reports, proxy and information statements and other information regarding registrants, such as Galapagos NV, that file electronically with the SEC.

With respect to references made in this annual report to any contract or other document of Galapagos NV, such references are not necessarily complete and you should refer to the exhibits attached or incorporated by reference to this annual report for copies of the actual contract or document..

I.     Subsidiary information

Not applicable.

Item 11    Quantitative and qualitative disclosures about market risk

Our financial risks are managed centrally. Our finance department coordinates the access to national and international financial markets and considers and manages continuously the financial risks concerning our activities. These relate to the following financial markets risks: credit risk, liquidity risk, currency and interest rate risk. Our interest rate risk is limited because we have nearly no financial debt and have a strong cash position. In case of decreasing interest rates we will face a reinvestment risk on our strong cash position. We do not buy or trade financial instruments for speculative purposes. For additional information on general risk factors, please see the section of this annual report titled “Item 3.D.—Risk Factors.”

Liquidity risk

Our cash and cash equivalents and current financial investments amounted to respectively €2,233.4 million and €2,469.8 million on December 31, 2021. Cash used in operating activities amounted to €503.8 million for the year ended December 31, 2021. Management forecasts our liquidity requirements to ensure that there is sufficient cash to meet operational needs. Based upon our current expected level of operating expenditures and our existing cash and cash equivalents, we believe that we will be able to fund our operating expenses and capital expenditure requirements at least for a period of 12 months. We have no credit lines. Such forecasting is based on realistic assumptions with regards to milestone and upfront payments to be received, taking into account our past track record, including the assumption that not all new projects that are being planned will be realized.

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All our cash and cash equivalents have only an insignificant liquidity risk as they are all convertible upon a maximum three month notice period and without incurring a significant penalty.

Credit risk

The term “credit risk” refers to the risk that a counterparty will default on its contractual obligations resulting in financial loss.

Our trade receivables consist of receivables on our collaboration partner Gilead, creditworthy pharmaceutical wholesalers and hospitals in Europe. To limit the risk of financial losses, a policy of only dealing with creditworthy counterparties has been developed.

We grant credit to our clients in the framework of our normal business activities. Usually, we require no pledge or other collateral to cover the amounts due. Management continuously evaluates the client portfolio for creditworthiness. All receivables are considered collectable.

To measure the expected credit losses, receivables have been grouped based on credit risk characteristics and the days past due. The provision for expected credit losses was not significant given that there have been no credit losses over the last three years and the high quality nature of our customers.

Aging balance of receivables that are due, but are still considered collectable:

	December 31,
	2021		2020		2019
	(Euro, in thousands)
60 - 90 days	€	141	€	—	€	87
90 - 120 days		92		—		—
more than 120 days	€	113	€	—	€	—

Our cash and cash equivalents are invested primarily in current, notice and term accounts. For banks and financial institutions, only independently rated parties with a minimum rating of ‘A’ are accepted at the beginning of the term. Our current financial investments are also kept within different financial institutions and include term deposits, money market funds and treasury bills with an AAA rating. The money market funds are invested in a well-diversified portfolio of highly rated assets.

Interest rate risk

The only variable interest-bearing financial instruments are cash and cash equivalents and current financial investments. Our interest rate income is impacted by the negative interest rate environment in EUR, and the low interest rate environment in USD.

Changes in interest rates may cause variations in interest income and expenses resulting from short term interest-bearing assets. Management does not expect the short term interest rates to decrease significantly in the immediate foreseeable future, which limits the interest exposure on our cash and cash equivalents and current financial investments.

Effect of interest rate fluctuation

A 100 basis point increase in interest rates at balance sheet date would have increased profit or loss, and equity, by approximately €47.0 million (2020: €51.7 million, 2019: €57.8 million); a 100 basis point decrease in interest rates would have decreased profit or loss, and equity, by approximately €47.0 million (2020: €51.7 million, 2019: €57.8 million).

Foreign exchange risk

We are exposed to foreign exchange risk arising from various currency exposures. Our principal functional currency is euro, but we receive payments from our business partners Gilead in U.S. dollars and acquire some consumables and materials in U.S. dollars, Swiss Francs, and GB Pounds.

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To limit this risk, we attempt to align incoming and outgoing cash flows in currencies other than the euro. In addition, contracts closed by our different entities are mainly in the functional currencies of that entity, except for the collaboration agreements signed with Gilead for which payments are denominated in U.S. dollars.

The exchange rate risk in case of a 10% change in the exchange rate amounts to:

	December 31,
	2021		2020		2019
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(83,996)	€	(116,690)	€	(133,373)
Increase in Euros - GB Pounds		1,093		303		113
Increase in Euros - CH Francs		233		2,013		538
Increase in Euros - HR Kunas		—		—		650
Increase in U.S. Dollars - GB Pounds	€	—	€	—	€	(894)

The exchange rate risk on the U.S. dollar is primarily related to our cash and cash equivalents and current financial investments held in U.S dollars.

Capital risk factors

We manage our capital to safeguard that we will be able to continue as a going concern. At the same time, we want to ensure the return to our shareholders through the results from our research and development activities.

Our capital structure consists of current financial investments, cash and cash equivalents, financial debt (we only have lease liabilities as of December 31, 2021), and equity attributed to the holders of our equity instruments, such as capital, reserves and results carried forward, as mentioned in the consolidated statement of changes in equity.

We manage our capital structure and make the necessary adjustments in the light of changes of economic circumstances, the risk characteristics of underlying assets and the projected cash needs of the current research and development activities.

The adequacy of the capital structure will depend on many factors, including scientific progress in the research and development programs, the magnitude of those programs, the commitments to existing and new clinical contract research organizations, the ability to establish new alliance or collaboration agreements, the capital expenditures, market developments and any future acquisition.

Neither we nor any of our subsidiaries are subject to any externally imposed capital requirements, other than those imposed by generally applicable company law requirements.

Item 12    Description of securities other than equity securities

A.     Debt securities

Not applicable.

B.     Warrants and rights

Not applicable.

C.     Other securities

Not applicable.

D.     American Depositary Shares

Citibank, N.A., as depositary, registers and delivers ADSs. Each ADS represents one ordinary share (or a right to receive one ordinary share) deposited with Citibank International Limited (located at EGSP 186, 1 North Wall Quay,

186

Dublin 1, Ireland) or any successor, as custodian for the depositary. Each ADS will also represent any other securities, cash or other property which may be held by the depositary in respect of the depositary facility. The depositary’s corporate trust office at which the ADSs are administered is located at 388 Greenwich Street, New York, New York 10013.

A deposit agreement among us, the depositary and the ADS holders sets out the ADS holder rights as well as the rights and obligations of the depositary. New York law governs the deposit agreement and the ADSs. A copy of the deposit agreement is incorporated by reference as an exhibit to this annual report.

Fees and charges

Pursuant to the terms of the deposit agreement, the holders of ADSs will be required to pay the following fees:

Service	Fees
●      Issuance of ADSs	Up to U.S. $0.05 per ADS issued
●      Cancellation of ADSs	Up to U.S. $0.05 per ADS canceled
●      Distribution of cash dividends or other cash distributions	Up to U.S. $0.05 per ADS held
●      Distribution of ADSs pursuant to stock dividends, free stock distributions or exercise of rights.	Up to U.S. $0.05 per ADS held
●      Distribution of securities other than ADSs or rights to purchase additional ADSs	Up to U.S. $0.05 per ADS held
●      ADS Services	Up to U.S. $0.05 per ADS held on the applicable record date(s) established by the depositary

The holders of ADSs will also be responsible to pay certain fees and expenses incurred by the depositary and certain taxes and governmental charges such as:

● taxes (including applicable interest and penalties) and other governmental charges;

● the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;

● certain cable, telex and facsimile transmission and delivery expenses;

● the expenses and charges incurred by the depositary in the conversion of foreign currency;

● the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and ADRs; and

● the fees and expenses incurred by the depositary, the custodian, or any nominee in connection with the servicing or delivery of deposited property.

ADS fees and charges payable upon (i) deposit of ordinary shares against issuance of ADSs and (ii) surrender of ADSs for cancellation and withdrawal of ordinary shares are charged to the person to whom the ADSs are delivered (in the case of ADS issuances) and to the person who delivers the ADSs for cancellation (in the case of ADS cancellations). In the case of ADSs issued by the depositary into the Depositary Trust Company, or DTC, or presented to the depositary via DTC, the ADS issuance and cancellation fees and charges may be deducted from distributions made through DTC, and may be charged to the DTC participant(s) receiving the ADSs or the DTC participant(s) surrendering the ADSs for cancellation, as the case may be, on behalf of the beneficial owner(s) and will be charged by the DTC participant(s) to

187

the account(s) of the applicable beneficial owner(s) in accordance with the procedures and practices of the DTC participant(s) as in effect at the time. ADS fees and charges in respect of distributions and the ADS service fee are charged to the holders as of the applicable ADS record date. In the case of distributions of cash, the amount of the applicable ADS fees and charges is deducted from the funds being distributed. In the case of (i) distributions other than cash and (ii) the ADS service fee, holders as of the ADS record date will be invoiced for the amount of the ADS fees and charges and such ADS fees and charges may be deducted from distributions made to holders of ADSs. For ADSs held through DTC, the ADS fees and charges for distributions other than cash and the ADS service fee may be deducted from distributions made through DTC, and may be charged to the DTC participants in accordance with the procedures and practices prescribed by DTC and the DTC participants in turn charge the amount of such ADS fees and charges to the beneficial owners for whom they hold ADSs.

In the event of refusal to pay the depositary fees, the depositary may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder. Note that the fees and charges you may be required to pay may vary over time and may be changed by us and by the depositary. You will receive prior notice of such changes. The depositary may reimburse us for certain expenses incurred by us in respect of the ADR program, by making available a portion of the ADS fees charged in respect of the ADR program or otherwise, upon such terms and conditions as we and the depositary agree from time to time.

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PART II

Item 13    Defaults, dividend arrearages and delinquencies

Not applicable.

Item 14    Material modifications to the rights of security holders and use of proceeds

Not applicable.

Item 15    Controls and procedures

Disclosure controls and procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Exchange Act Rule 13a-15(b) as of December 31, 2021. While there are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures, our disclosure controls and procedures are designed to provide reasonable assurance of achieving their objectives. Based upon our evaluation, as of December 31, 2021, our Chief Executive Officer and Chief Financial Officer have concluded that the disclosure controls and procedures, in accordance with Exchange Act Rule 13a-15(e), (i) are effective at that level of reasonable assurance in ensuring that information required to be disclosed in the reports that are filed or submitted under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the Commission’s rules and forms, and (ii) are effective at that level of reasonable assurance in ensuring that information to be disclosed in the reports that are filed or submitted under the Exchange Act is accumulated and communicated to the management of our company, including our Chief Executive Officer and the Chief Financial Officer, to allow timely decisions regarding required disclosure.

Management’s Annual Report on internal control over financial reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Our internal control over financial reporting is a process designed, under the supervision of our Chief Executive Officer and Chief Financial Officer, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of our financial statements for external reporting purposes in accordance with generally accepted accounting principles.

Our internal control over financial reporting includes policies and procedures that pertain to the maintenance of records that, in reasonable detail, accurately and fairly, reflect transactions and dispositions of assets, provide reasonable assurance that transactions are recorded in the manner necessary to permit the preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures are only carried out in accordance with the authorization of our management and directors, and provide reasonable assurance regarding the prevention or timely detection of any unauthorized acquisition, use or disposition of our assets that could have a material effect on our financial statements. Our internal control over financial reporting includes controls over relevant IT systems that have an impact on financial reporting including accuracy and completeness of our account balances.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect all misstatements. Moreover, projections of any evaluation of the effectiveness of internal control to future periods are subject to a risk that controls may become inadequate because of changes in conditions and that the degree of compliance with the policies or procedures may deteriorate.

Our management has assessed the effectiveness of internal control over financial reporting based on the Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in 2013. Galapagos’ management identified a material weakness in our internal control over financial reporting as of December 31, 2021, specifically related to the review of certain elements of the percentage of completion determination that drives the filgotinib collaboration revenue recognition (please refer to note 6 of the financial statements where this topic is discussed in more detail). A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material

189

misstatement of the Company’s annual or interim financial statements will not be prevented or detected on a timely basis. Our remediation plan that is being developed includes improving the existing control on the filgotinib revenue recognition to enhance the precision of the review of management’s cost to complete estimate.

Notwithstanding the material weakness, management has concluded that our audited financial statements included in this Annual Report on Form 20-F are fairly stated in all material respects in accordance with IFRS for each of the periods presented herein.

The effectiveness of internal control over financial reporting as of December 31, 2021 has been audited by Deloitte Bedrijfsrevisoren BV, our independent registered public accounting firm. Their audit report, including their opinion and attestation report on management’s assessment of internal control over financial reporting, is included in our audited consolidated financial statements included in this annual report.

Changes in internal control over financial reporting

During the period covered by this annual report, we have not made any change to our internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 15T.   Controls and procedures

Not applicable.

Item 16       Reserved

Not applicable.

Item 16A    Audit Committee financial expert

Our supervisory board has determined that Howard Rowe is an audit committee financial expert as defined by SEC rules and has they requisite financial sophistication under the applicable rules and regulations of the Nasdaq Stock Market. Mr. Rowe is independent as such term is defined in Rule 10A-3 under the Exchange Act and under the listing standards of the Nasdaq Stock Market.

Item 16B    Code of Ethics

In 2021, we have adopted a new Code of Business Conduct and Ethics, or the Code of Conduct, that is applicable to all of our employees, members of our management board and members of our supervisory board. The Code of Conduct is available on our website at www.glpg.com/governance-information. Our supervisory board is responsible for administering the Code of Conduct and will be required to approve any waivers of the Code of Conduct for members of our supervisory board and members of our management board. Any waivers of the Code of Conduct for other employees may also be made by the compliance officer. We expect that any amendments to the Code of Conduct, or any waivers of its requirements, will be disclosed on our website. One breach of our Code of Business Conduct and Ethics was reported to the audit committee in 2021.

Item 16C    Principal Accountant fees and services

Deloitte Bedrijfsrevisoren BV has served as our independent registered public accounting firm for 2021 and 2020. Our accountants billed the following fees to us for professional services in each of those fiscal years:

	Year ended December 31,
	2021		2020
	(Euro, in thousands)
Audit Fees	€	860.3	€	1,202.8
Audit-Related Fees		101.1		214.4
All Other Fees		587.7		938.4
Total	€	1,549.2	€	2,355.6

190

“Audit Fees” are the aggregate fees billed for the audit of our annual financial statements. This category also includes services that generally the independent accountant provides, such as consents and assistance with and review of documents filed with the SEC.

“Audit-Related Fees” are the aggregate fees billed for assurance and related services that are reasonably related to the performance of the audit and are not reported under Audit Fees.

“All Other Fees” are any additional amounts billed for products and services provided by the principal accountant. For the year ended December 31, 2021 and 2020, they relate to non-audit fees, in particular related to advisory services in relation to IT and quality management.

Audit and non-audit services pre-approval policy

The audit committee has responsibility for, among other things, appointing, setting compensation of and overseeing the work of our independent registered public accounting firm, or external auditor. In recognition of these responsibilities, the audit committee has adopted a policy governing the pre-approval of all audit and permitted non-audit services performed by our external auditor to ensure that the provision of such services does not impair the external auditor’s independence from us and our management. Unless a type of service to be provided by our external auditor has received general pre-approval from the audit committee, it requires specific pre-approval by the audit committee. The payment for any proposed services in excess of pre-approved cost levels requires specific pre-approval by the audit committee.

Pursuant to its pre-approval policy, the audit committee may delegate its authority to pre-approve services to the chairperson of the Audit Committee. The decisions of the chairperson to grant pre-approvals must be presented to the full audit committee at its next scheduled meeting. The audit committee may not delegate its responsibilities to pre-approve services to the management.

The audit committee has considered the non-audit services provided by Deloitte Bedrijfsrevisoren BV as described above and believes that they are compatible with maintaining Deloitte Bedrijfsrevisoren BV’s independence as our external auditor. In accordance with Regulation S-X, Rule 2-01, paragraph (c)(7)(i), no fees for professional services were approved pursuant to any waivers of the pre-approval requirement.

Item 16D    Exemptions from the listing standards for Audit Committees

Not applicable.

Item 16E    Purchases of equity securities by the issuer and affiliated purchasers

Not applicable.

Item 16F    Change in registrant’s certifying accountant

Not applicable.

Item 16G    Corporate governance

As a Belgian naamloze vennootschap / société anonyme, we are subject to various corporate governance requirements under Belgian law. In addition, as a foreign private issuer listed on the Nasdaq Global Select Market, we will be subject to Nasdaq corporate governance listing standards. However, the Nasdaq Global Select Market’s listing standards provide that foreign private issuers are permitted to follow home country corporate governance practices in lieu of the Nasdaq rules, with certain exceptions. We intend to rely on certain exemptions for foreign private issuers and follow Belgian corporate governance practices in lieu of the Nasdaq corporate governance rules.

In 2019, a new Belgian Companies Code was approved by the Belgian Parliament. For existing companies like us, there was a transition regime providing for a staggered applicability of the new provisions. Certain parts of the new code applied to Galapagos as of January 1, 2020 and the full transition was completed on our extraordinary shareholders’

191

meeting of April 28, 2020, which resolved to amend our articles of association as a consequence of the newly applicable Belgian Companies Code.

The full text of our articles of association is made available as an exhibit to this annual report.

As of April 28, 2020, Galapagos has a two-tier governance structure, with a supervisory board and a management board. The supervisory board is responsible for the general policy and strategy of the company and has all powers which are specifically reserved for it under the Belgian Companies Code. The supervisory board also supervises the management board. The management board exercises all powers which are not reserved for the supervisory board in accordance with the Belgian Companies Code. In light of the recent leadership transition, the supervisory board reviewed whether the chosen governance structure is still appropriate and decided to propose a new governance structure to the general shareholders’ meeting, being a one-tier governance structure, consisting of a board of directors and an executive committee to which certain powers are delegated by the board of directors. On the date of this report, our articles of association have not yet been amended. The supervisory board invites the shareholders of Galapagos NV to approve the introduction of a one-tier governance structure at the occasion of the extraordinary shareholders’ meeting to be held on April 26, 2022. Reference is made to the section of this annual report titled “Item 6 Directors, senior management and employees—A. Directors and senior management—Our Supervisory Board”.

As a consequence of the proposed introduction of a one-tier governance model, and subject to approval of such proposal by the extraordinary shareholders’ meeting of Galapagos NV to be held on 26 April 2022, our corporate governance charter will be updated.

Differences between our corporate governance practices and the listing rules of the Nasdaq stock market

The following are the significant ways in which our corporate governance practices differ from those required for U.S. companies listed on Nasdaq:

● Quorum At Shareholder Meetings. Nasdaq Stock Market Listing Rule 5620(c) requires that for any shareholders’ meeting, the quorum must be no less than 33 1/3 % of the outstanding ordinary shares. There is no quorum requirement under Belgian law for our shareholders’ meetings, except as provided for by law in relation to decisions regarding certain matters, e.g. amendment of the articles of association.

● Committees. Nasdaq Stock Market Listing Rule 5605(d)(2) requires that compensation of officers must be determined by, or recommended to, the board of directors for determination, either by a majority of the independent directors, or a compensation committee comprised solely of independent directors. Nasdaq Stock Market Listing Rule 5605(e) requires that director nominees be selected, or recommended for selection, either by a majority of the independent directors or a nominations committee comprised solely of independent directors. Under Belgian law, we are not subject to such composition requirements. Pursuant to Article 7:100 of the Belgian Companies Code and the principles and guidelines of the 2020 Belgian Corporate Governance Code, we are required to set up a remuneration committee within our supervisory board, consisting of a majority of independent supervisory board members. In addition, the 2020 Belgian Corporate Governance Code provides that the supervisory board should set up a nomination committee, which can be combined with the remuneration committee. Our supervisory board has set up and appointed a nomination and remuneration committee.

● Executive Session. Nasdaq Stock Market Listing Rule 5605(b)(2) requires that independent directors must have regularly scheduled meetings at which only independent directors are present. We do not intend to require our independent supervisory board members to meet separately from the full supervisory board on a regular basis or at all, although the supervisory board is supportive of its independent members voluntarily arranging to meet separately from the other members of our supervisory board when and if they wish to do so.

● Committee Charters. Nasdaq Stock Market Listing Rules 5605(c)(1), (d)(1) and (e)(2) require that each committee of the board of directors must have a formal written charter. Pursuant to the Belgian Corporate Governance Code, our supervisory board has drawn up a corporate governance charter including, amongst others, the internal rules of our committees.

192

● Shareholder Approval for Certain Issuances of Securities. Nasdaq Stock Market Listing Rule 5635 requires that a company obtains shareholder approval prior to making certain issuances of securities. Pursuant to the Belgian Companies Code and subject to the conditions set forth therein and in our articles of association, our supervisory board is allowed to issue shares through the use of authorized capital limited to the maximum amount of our share capital. The authorized capital may however not be used for (i) capital increases by contribution in kind exclusively reserved for one of our shareholders holding shares to which more than 10% of the voting rights are attached, (ii) the issuance of shares with multiple voting rights, (iii) the issuance of a new class of securities, or (iv) the issuance of subscription rights intended mainly for one or more specified persons other than our or our subsidiaries’ staff. Restrictions on the use of the authorized capital also exist in case a public take-over bid on us has been announced.

Item 16H    Mine safety disclosure

Not applicable.

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PART III

Item 17    Financial statements

Not applicable.

Item 18    Financial statements

See pages F-1 through F-67 of this annual report.

Item 19    Exhibits

The Exhibits listed in the Exhibit Index at the end of this annual report are filed as Exhibits to this annual report.

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Index to Financial Statements

FINANCIAL SECTION

Audited consolidated financial statements as of and for the years ended December 31, 2021, 2020 and 2019

Contents

Reports of Independent Registered Public Accounting Firm – Deloitte Bedrijfsrevisoren/Réviseurs d’Entrepises BV/SRL (Firm ID:1133)	F-2
Consolidated Statement of Financial Position	F-6
Consolidated Statement of Operations	F-7
Consolidated Statement of Comprehensive Income	F-8
Consolidated Statement of Changes in Equity	F-9
Consolidated Statement of Cash Flows	F-10
Notes to Consolidated Financial Statements	F-12

F-1

REPORTS OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the supervisory board of Galapagos NV

Opinion on the Financial Statements

We have audited the accompanying consolidated statements of financial position of Galapagos NV and subsidiaries (the "Company") as of December 31, 2021, 2020 and 2019, the related consolidated statements of operations, comprehensive income/loss(-), changes in equity and cash flows, for each of the three years in the period ended December 31, 2021, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2021, 2020 and 2019 and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2021, in conformity with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 24, 2022, expressed an adverse opinion on the Company's internal control over financial reporting because of a material weakness.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Determination of the estimated costs impacting the percentage of completion used for revenue recognition related to the license and collaboration agreement for filgotinib - Refer to Notes 2, 4, 6, and 25 to the financial statements

Critical Audit Matter Description

As described in Notes 2, 4 and 6 to the consolidated financial statements, the Company recognized collaboration revenues of 235,7 million EUR in 2021 from upfront payments and milestone payments in relation to the Gilead collaboration agreement for filgotinib (the “agreement”). For this filgotinib performance obligation, the Company recognized revenue using the cost-to-cost input method, which management believes best depicts the transfer of control to the customer, being Gilead. Under the cost-to-cost input method, the extent of progress towards completion is

F-2

measured based on the ratio of actual costs incurred to the total estimated costs expected upon satisfying the filgotinib performance obligation.

Significant management judgment is required in determining the total estimated costs required under the agreement and the period over which the Company is expected to complete its performance obligation. This significant estimate is the principal consideration for our conclusion that procedures relating to the determination of the estimated costs to complete the performance obligation, impacting the revenue recognition for the filgotinib performance obligation is a critical audit matter. This increased level of judgment by management led to a high degree of auditor judgment, complexity, and effort in performing procedures and in evaluating audit evidence related to management’s assumptions related to the estimation of total costs to complete.

How the Critical Audit Matter Was Addressed in the Audit

Our procedures included testing the effectiveness of controls relating to the revenue recognition process, including controls over the actual costs incurred to date and controls over the inputs and assumptions used to estimate the total costs required to complete the performance obligation. As a result of the Company’s material weakness identified by the Company, we increased the nature and extent of our audit procedures over the input and assumptions used in the estimation.

These procedures included, among others (i) evaluating and testing management’s process for determining the estimate of total costs to complete the performance obligation, which included evaluating the reasonableness of significant assumptions related to the estimate, and (ii) testing, on a sample basis, the actual costs incurred to date.

Our procedures on the reasonableness of the assumptions used also included evaluating management’s ability to reasonably estimate costs to complete the performance obligation by (i) evaluating the appropriateness of changes made during the period to management’s estimates of total costs to complete; (ii) performing a comparison of management’s prior period cost estimates to actual costs incurred and approved; (iii) evaluating the period over which management is expecting the company to complete its performance obligation; (iv) comparing certain costs to third-party supporting evidence; and (v) performing sensitivities on the current year’s revenue recognition resulting from changes to these estimates.

Zaventem, Belgium, March 24, 2022

/s/ Deloitte Bedrijfsrevisoren / Réviseurs d’Entreprises BV/SRL

We have served as the Company's auditor since 2000.

F-3

Report of independent registered public accounting firm

To the shareholders and the supervisory board of Galapagos NV

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of Galapagos NV and subsidiaries (the “Company”) as of December 31, 2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, because of the effect of the material weakness identified below on the achievement of the objectives of the control criteria, the Company has not maintained effective internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2021, of the Company and our report dated March 24, 2022 expressed an unqualified opinion on those financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Material Weakness

F-4

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the company’s annual or interim financial statements will not be prevented or detected on a timely basis. The following material weakness has been identified and included in management’s assessment: the Company’s review of certain elements of the percentage of completion determination that drives the filgotinib collaboration revenue. This material weakness was considered in determining the nature, timing, and extent of audit tests applied in our audit of the consolidated financial statements as of and for the year ended December 31, 2021, of the Company, and this report does not affect our report on such financial statements.

Zaventem, Belgium, March 24, 2022

/s/ Deloitte Bedrijfsrevisoren / Réviseurs d’Entreprises BV/SRL

We have served as the Company's auditor since 2000.

F-5

Consolidated Statement of Financial Position

	December 31,
	2021		2020		2019		Notes
	(Euro, in thousands)
Assets
Intangible assets	€	60,103	€	67,565	€	24,927	13
Property, plant and equipment		137,512		103,378		66,052	14
Deferred tax assets		4,032		4,475		4,205	22
Non-current trade receivables		—		50,000		—	18
Non-current R&D incentives receivables		127,186		111,624		93,407	16
Other non-current assets		2,473		11,343		14,091	18
Non-current assets		331,306		348,384		202,682
Inventories		20,569		36		—	17
Trade and other receivables		111,337		148,418		54,009	18
Current R&D incentives receivables		16,827		24,104		21,949	16
Current financial investments		2,469,809		3,026,278		3,919,216	19
Cash and cash equivalents		2,233,368		2,135,187		1,861,616	20
Other current assets		9,945		11,917		9,138	18
Current assets from continuing operations		4,861,854		5,345,941		5,865,927
Assets classified as held for sale		—		23,406		—	26
Total current assets		4,861,854		5,369,347		5,865,927
Total assets	€	5,193,160	€	5,717,731	€	6,068,609
Equity and liabilities
Share capital	€	292,075	€	291,312	€	287,282	21
Share premium account		2,730,391		2,727,840		2,703,583	21
Other reserves		(10,177)		(10,907)		(4,842)
Translation differences		(1,722)		(3,189)		(1,142)
Accumulated losses		(367,205)		(334,701)		(109,223)
Total equity		2,643,362		2,670,355		2,875,658
Retirement benefit liabilities		11,699		14,996		8,263
Non-current lease liabilities		19,655		23,035		19,558	23
Other non-current liabilities		7,135		8,096		6,989	24
Non-current deferred income		1,944,836		2,365,974		2,586,348	25
Non-current liabilities		1,983,325		2,412,101		2,621,158
Current lease liabilities		7,204		6,401		5,826	23
Trade and other liabilities		137,418		172,386		143,434	24
Current tax payable		1,782		1,248		2,037	11
Current financial instruments		204		3,164		6,198	9
Current deferred income		419,866		443,159		414,298	25
Current liabilities from continuing operations		566,474		626,357		571,793
Liabilities directly associated with assets classified as held for sale		—		8,917		—	26
Current liabilities		566,474		635,274		571,793
Total liabilities		2,549,798		3,047,375		3,192,951
Total equity and liabilities	€	5,193,160	€	5,717,731	€	6,068,609

The accompanying notes form an integral part of these financial statements.

F-6

Consolidated Statement of Operations

	Year ended December 31,
	2021		2020		2019		Notes
	(Euro, in thousands, except per share data)
Product net sales	€	14,753	€	2	€	—	6
Collaboration revenues		470,093		478,051		834,901	6
Total net revenues		484,846		478,053		834,901
Cost of sales		(1,629)		—		—
Research and development expenses		(491,707)		(523,667)		(420,090)	7
Sales and marketing expenses		(69,956)		(66,468)		(24,577)	7
General and administrative expenses		(140,899)		(118,757)		(72,382)	7
Other operating income		53,749		52,207		50,896	7
Operating income/loss (-)		(165,596)		(178,632)		368,748
Fair value re-measurement of share subscription agreement and warrants		2,960		3,034		(181,644)	9
Other financial income		70,548		18,667		21,389	10
Other financial expenses		(30,911)		(152,844)		(59,968)	10
Income/loss (-) before tax		(122,999)		(309,775)		148,525
Income taxes		(2,423)		(1,226)		165	11
Net income/loss (-) from continuing operations		(125,422)		(311,001)		148,689
Net income from discontinued operations, net of tax		22,191		5,565		1,156	26
Net income/loss (-)	€	(103,231)	€	(305,436)	€	149,845
Net income/loss (-) attributable to:
Owners of the parent		(103,231)		(305,436)		149,845
Basic income/loss (-) per share	€	(1.58)	€	(4.69)	€	2.60	12
Diluted income/loss (-) per share	€	(1.58)	€	(4.69)	€	2.49	12
Basic income/loss (-) per share from continuing operations	€	(1.91)	€	(4.78)	€	2.58
Diluted income/loss (-) per share from continuing operations	€	(1.91)	€	(4.78)	€	2.47

The accompanying notes form an integral part of these financial statements.

F-7

Consolidated Statement of Comprehensive Income/Loss (-)

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Net income/loss (-)	€	(103,231)	€	(305,436)	€	149,845
Items that will not be reclassified subsequently to profit or loss:
Re-measurement of defined benefit obligation		730		(6,065)		(4,107)
Items that may be reclassified subsequently to profit or loss:
Translation differences, arisen from translating foreign activities		736		(1,024)		415
Realization of translation differences upon sale/liquidation of foreign operations		731		(1,023)		—
Other comprehensive income/loss (-), net of income tax		2,197		(8,112)		(3,692)
Total comprehensive income/loss (-) attributable to:
Owners of the parent		(101,034)		(313,548)		146,154
Total comprehensive income/loss (-) attributable to owners of the parent arises from:
Continuing operations		(123,956)		(318,841)		145,050
Discontinued operations		22,922		5,293		1,104
Other comprehensive income/loss (-), net of income tax	€	(101,034)	€	(313,548)	€	146,154

The accompanying notes form an integral part of these financial statements.

F-8

Consolidated Statement of Changes in Equity

	Share capital		Share premium account		Translation differences		Other reserves		Accumul. losses		Total
	(Euro, in thousands)
On December 31, 2018	€	236,540	€	1,277,780	€	(1,557)	€	(735)	€	(297,779)	€	1,214,249
Change in accounting policy ( modified retrospective application IFRS 9)										416		416
Restated total equity at January 1, 2019		236,540		1,277,780		(1,557)		(735)		(297,363)		1,214,665
Net income										149,845		149,845
Other comprehensive income/loss (-)						415		(4,107)				(3,692)
Total comprehensive income/loss (-)						415		(4,107)		149,845		146,154
Share-based compensation										38,297		38,297
Derecognition of financial liability from share subscription agreement and warrant A				135,702								135,702
Issue of new shares		36,945		923,142								960,087
Share issue costs		(4,447)										(4,447)
Exercise of warrant A by Gilead		14,162		353,873								368,035
Exercise of subscription rights		4,082		13,085								17,167
On December 31, 2019	€	287,282	€	2,703,583	€	(1,142)	€	(4,842)	€	(109,223)	€	2,875,658
Net loss										(305,436)		(305,436)
Other comprehensive loss						(2,047)		(6,065)				(8,112)
Total comprehensive loss						(2,047)		(6,065)		(305,436)		(313,548)
Share-based compensation										79,959		79,959
Exercise of subscription rights		4,031		24,257								28,288
On December 31, 2020	€	291,312	€	2,727,840	€	(3,189)	€	(10,907)	€	(334,701)	€	2,670,355
Net loss										(103,231)		(103,231)
Other comprehensive income						1,467		730				2,197
Total comprehensive income/loss (-)						1,467		730		(103,231)		(101,034)
Share-based compensation										70,726		70,726
Exercise of subscription rights		763		2,551								3,314
On December 31, 2021	€	292,075	€	2,730,391	€	(1,722)	€	(10,177)	€	(367,205)	€	2,643,362

The accompanying notes form an integral part of these financial statements.

F-9

Consolidated Statement of Cash Flows

	2021		2020		2019		Notes
	(Euro, in thousands)
Net income/loss (-)	€	(103,231)	€	(305,436)	€	149,845
Adjustment for non-cash transactions		57,718		230,723		248,027	27
Adjustment for items to disclose separately under operating cash flow		11,227		4,067		(7,731)	27
Adjustment for items to disclose under investing and financing cash flows		(28,847)		(2,472)		(5,061)	27
Change in working capital other than deferred income		23,337		(146,092)		12,698	27
Increase/decrease (-) in deferred income		(453,720)		(207,787)		2,804,202	25
Cash generated from/used in (-) operations		(493,516)		(426,998)		3,201,980
Interest paid		(12,540)		(9,033)		(1,158)
Interest received		2,913		10,054		7,852
Income taxes paid		(684)		(1,358)		(57)
Net cash flows generated from/used in (-) operating activities		(503,827)		(427,336)		3,208,617
Purchase of property, plant and equipment		(54,205)		(42,522)		(22,385)	14
Purchase of and expenditure in intangible fixed assets		(3,674)		(48,793)		(23,300)	13
Proceeds from disposal of property, plant and equipment		—		49		—	14
Purchase of current financial investments		(1,561,015)		(4,574,206)		(4,787,284)	19
Interest received related to current financial investments		12		3,500		5,059	19
Sale of current financial investments		2,127,380		5,415,316		1,063,344	19
Disposals of subsidiaries, net of cash disposed		28,696		—		—	26
Acquisition of financial assets		—		(2,681)		(177)	15
Proceeds from sale of financial assets held at fair value through profit or loss		4,045		6,626		82	15
Net cash flows generated from/used in (-) investing activities		541,238		757,288		(3,764,660)
Payment of lease liabilities and other debts		(7,190)		(6,247)		(5,091)	23
Proceeds from capital and share premium increases, gross amount		—		—		960,087	21
Issue cost paid, related to capital and share premium increases		—		—		(4,447)	21
Proceeds from capital and share premium increases from exercise of subscription rights		3,314		28,287		17,167	21
Proceeds from capital and share premium increases from exercise of warrant A by Gilead		—		—		368,035	21
Net cash flows generated from/used in (-) financing activities		(3,876)		22,040		1,335,751
Increase in cash and cash equivalents	€	33,535	€	351,994	€	779,708
Cash and cash equivalents at beginning of year	€	2,143,071	€	1,861,616	€	1,290,796	20
Transfer to current financial investments		—		—		(198,922)
Increase in cash and cash equivalents		33,535		351,994		779,708
Effect of exchange rate differences on cash and cash equivalents		56,763		(70,539)		(9,966)
Cash and cash equivalents at end of year	€	2,233,368	€	2,143,071	€	1,861,616	20

F-10

	December 31,
	2021		2020		2019		Notes
	(Euro, in thousands)
Current financial investments	€	2,469,809	€	3,026,278	€	3,919,216	19
Cash and cash equivalents		2,233,368		2,135,187		1,861,616	20
Cash and cash equivalents classified as assets held for sale		—		7,884		—	26
Current financial investments and cash and cash equivalents	€	4,703,177	€	5,169,349	€	5,780,832

The accompanying notes form an integral part of these financial statements.

F-11

Notes to Consolidated Financial Statements

1. General information

Galapagos NV is a limited liability company incorporated in Belgium and has its registered office at Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium. In the notes to the consolidated financial statements, references to “we,” “us,” “the group” or “Galapagos” include Galapagos NV together with its subsidiaries.

We are an integrated biopharmaceutical company active in the discovery, development, and commercialization of medicines with novel modes of action, several of which are currently in clinical development in multiple diseases with high unmet medical need. Our highly flexible discovery platform is applicable across many therapeutic areas.

Having achieved approval in the European Union and Great Britain for our first ever medicine in RA and UC, we remain highly committed to progressing our pipeline of drug candidates to address unmet medical needs and improve the lives of millions.

We devote substantially all of our resources to our drug discovery efforts from target discovery through clinical development, and to our commercialization efforts for filgotinib in Europe.

The components of the operating result presented in the financial statements include the following companies: Galapagos NV, Galapagos Biopharma Belgium BV, Galapagos Real Estate Belgium BV (Mechelen, Belgium); Galapagos SASU (Romainville, France); Galapagos B.V., Galapagos Biopharma Netherlands B.V. and Galapagos Real Estate Netherlands B.V. (Leiden, the Netherlands); Galapagos, Inc. and its subsidiary Xenometrix, Inc. (United States); Galapagos GmbH (Basel, Switzerland); Galapagos Biotech Ltd (Cambridge, UK), Galapagos Biopharma Germany GmbH (München, Germany), Galapagos Biopharma Spain S.L.U. (Madrid, Spain); Galapagos Biopharma Italy S.r.l. (Milan, Italy); Galapagos Biopharma Sweden AB (Stockholm, Sweden), Galapagos Biopharma Norway AS (Oslo, Norway), Galapagos Biopharma Finland Oy (Helsinki, Finland), Galapagos Biopharma Denmark ApS (Copenhagen, Denmark), Galapagos Biopharma Austria GmbH (Vienna, Austria) and Galapagos Biopharma Ireland Ltd ( Dublin, Ireland).

Our continuing operations had 1,309 employees as at December 31, 2021 (as compared to 1,304 employees as at December 31, 2020 and 1,003 employees as at December 31, 2019) mainly working in the operating facilities in Mechelen (the Belgian headquarters), the Netherlands, France, Switzerland, Germany, Italy, Spain and the United Kingdom.

On January 4, 2021, we sold our fee-for-service business Fidelta to Selvita S.A. for a total consideration of €37.1 million. Fidelta d.o.o. had 185 employees on December 31, 2020 working in the operating facilities in Croatia. We classified the assets and the associated liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020.

Impact of COVID-19 on the financial statements

To date, we have experienced limited impact on our financial performance, financial position, cash flows and significant judgements and estimates, although we continue to face additional risks and challenges associated with the impact of the outbreak.

2. Summary of significant transaction

On July 14, 2019 we and Gilead announced that we entered into a 10-year global research and development collaboration. Through this agreement, Gilead gained exclusive access to our innovative portfolio of compounds, including clinical and preclinical programs and a proven drug discovery platform. At inception of this collaboration in 2019, we received an upfront payment €3,569.8 million ($3.95 billion) and a €960.1 million ($1.1 billion) equity investment from Gilead.

On the closing date of the transaction (August 23, 2019) we concluded that the upfront payment implicitly included a premium for the future issuance of warrant A and initial and subsequent warrant B. The expected value of the warrants to be issued is treated as a contract liability ("warrant issuance liability") and reduces the transaction price until

F-12

approval date of the issuance of the underlying warrants. As from approval date, the allocation of the upfront payment to the respective warrant becomes fixed and future changes in the fair value of the respective warrant are recognized in profit or loss. As such, the part of the upfront payment allocated to the warrant A and initial warrant B reflects the fair value of these financial liabilities at the warrant approval date (October 22, 2019).

On November 6, 2019 Gilead exercised warrant A, which resulted in an additional equity investment of €368.0 million.

Subsequent warrant B is still subject to approval by an extraordinary meeting of shareholders and is therefore still presented as warrant issuance liability in our deferred income (we refer to note 25 for more information). The value allocated to the subsequent warrant B reflects the fair value of the underlying liability on December 31, 2019, December 31, 2020 and December 31, 2021. On December 31, 2021 the value of subsequent warrant B further decreased to €2.4 million, driven by the decrease of our share price and of the implied volatility in 2021.

At inception of this collaboration, we identified the following three performance obligations: (i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 on the global development activities of filgotinib, as a result of the revised license and collaboration agreement.

As part of the collaboration, Gilead also received option rights for GLPG1972, a Phase 2b candidate for osteoarthritis, in the United States. In November 2020, Gilead however declined to exercise its option for GLPG1972.

Since October 22, 2019, Gilead has had two representatives on the supervisory board of Galapagos (Daniel O’Day and Linda Higgins).

In Q4 2020, Gilead decided not to pursue FDA approval of the RA indication for filgotinib in the U.S. as a result of Complete Response Letter (CRL) from the Food and Drug Administration (FDA). Due to this, in December 2020 Gilead and we agreed to amend our existing collaboration for the commercialization and development of filgotinib. This resulted in the execution of the Transition and Amendment Agreement of April 3, 2021 and the Second Amended and Restated license and Collaboration Agreement of December 24, 2021, effective as of January 1, 2022.

In September 2021 we agreed together with Gilead to also take over the sponsorship of and operational and financial responsibility for the ongoing DIVERSITY clinical study, evaluating filgotinib in CD, and its long-term extension study. We intend to complete the transfer of the DIVERSITY clinical study no later than June 30, 2022. From April 1, 2022, we will also be solely responsible for all development costs for the DIVERSITY clinical study.

Gilead remains responsible for commercial activities outside of Europe.

These modifications to the collaboration with Gilead did not result in the creation of new performance obligations, and only the performance obligation related to the development activities for filgotinib has been reassessed.

We retain the following three performance obligations, of which the first one was satisfied completely in 2019; (i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 to 100/0 (for certain agreed activities (Group A activities, as defined below) on the global development activities of filgotinib, until we complete the remaining development activities.

We refer to the critical accounting judgments and key sources of estimation uncertainty section (note 4) explaining critical judgments and estimates in applying accounting policies.

Terms of the collaboration

We will fund and lead all discovery and development autonomously until the end of Phase 2. After the completion of a qualifying Phase 2 study (or, in certain circumstances, the first Phase 3 study), Gilead will have the option to acquire

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a license to the compound outside Europe. If the option is exercised, we and Gilead will co-develop the compound and share costs equally. Gilead will maintain option rights to our programs through the 10-year term of the collaboration. This term can be extended for up to an additional three years thereafter for those programs, if any, that have entered clinical development prior to the end of the collaboration term. In addition a final term extension can be granted in certain circumstances. Development of GLPG1690 was discontinued in February 2021.

For GLPG1972, after the completion of the ongoing Phase 2b study in osteoarthritis, Gilead had the option to pay a $250 million fee to license the compound in the United States but declined to exercise its option in November 2020.

For all other programs resulting from the collaboration, Gilead will make a $150 million opt-in payment per program and will owe no subsequent milestones. We will receive tiered royalties ranging from 20%-24% on net sales of all our products licensed by Gilead in all countries outside Europe as part of the agreement.

Revised filgotinib collaboration

Under the revised agreement of December 2020, we assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe, providing the opportunity to build a commercial presence on an accelerated timeline. The transfer is subject to applicable local legal, regulatory and consultation requirements. Most activities have been transferred as of December 31, 2021 and the parties intend to complete the transition by December 31, 2022. Beginning on January 1, 2021, we bear the future development costs for certain studies (defined as “Group A activities”), in lieu of the equal cost split contemplated by the previous agreement. These studies initially included the DARWIN3, FINCH4, FILOSOPHY, and Phase 4 studies and registries in RA, MANTA and MANTA-RAy, the PENGUIN1 and 2 and EQUATOR2 studies in PsA, the SEALION1 and 2 studies in AS, the HUMBOLDT study in uveitis in addition to other clinical and non-clinical expenses supporting these studies and support for any investigator sponsored trials in non-IBD conditions and non-clinical costs on all current trials. The DIVERSITY study has been added to the “Group A activities” in September 2021. The existing 50/50 global development cost sharing arrangement will continue for the following studies (defined as “Group B activities”): SELECTION and its long-term extension study (LTE) in UC, DIVERGENCE 1 and 2 and their LTEs and support for Phase 4 studies and registries in Crohn’s disease, pediatric studies and their LTEs in RA, UC and Crohn’s disease, and support for investigator sponsored trials in IBD. All commercial economics on filgotinib in Europe will transfer to us as of January 1, 2022, subject to payment of tiered royalties of 8% to 15% of net sales in Europe to Gilead, starting in 2024. In addition, if the European Medicines Agency grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY trial, then royalties payable by us to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6% to 10.5% of net sales in Europe. In connection with the amendments to the existing arrangement for the commercialization and development of filgotinib, Gilead has agreed to irrevocably pay us €160 million, which is split between a €110 million payment received in 2021 and a €50 million payment to be received in 2022 and is subject to certain adjustments for higher than budgeted development costs. Upon completion of the DIVERSITY study transfer in 2022, Gilead will make a one-time payment of $15 million to us in consideration for assuming responsibility for the DIVERSITY clinical study. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. Other terms of the original license agreement remain in effect, including the remaining $295 million in development and regulatory milestones, sales-based milestone payments of up to $600 million and tiered royalties ranging from 20% – 30% payable in territories outside Europe (whereas before it was applicable for all countries outside of Belgium, France, Germany, Italy, Luxembourg, the Netherlands, Spain and the United Kingdom).

In addition, we achieved two regulatory approval milestones in 2020 totaling $105 million. No regulatory approval milestones were achieved during 2021.

Terms of the equity investment

As part of the research and development collaboration of 2019 Gilead also entered into a share subscription agreement with us. Gilead’s equity investment consisted of a subscription for new Galapagos shares at a price of €140.59 per share, representing at July 14, 2019 a 20% premium to Galapagos’ 30-day, volume-weighted average price. This equity subscription took place at closing of the transaction, on August 23, 2019 and increased Gilead’s stake in Galapagos from approximately 12.3% to 22.04% of the then issued and outstanding shares in Galapagos.

In addition, the extraordinary general meeting of shareholders of October 22, 2019 approved the issuance of warrant A and initial warrant B allowing Gilead to further increase its ownership of Galapagos to up to 29.9% of the

F-14

company’s issued and outstanding shares. The initial warrant B has a term of five years and an exercise price per share equal to the greater of (i) 120% multiplied by the arithmetic mean of the 30-day daily volume weighted average trading price of Galapagos’ shares as traded on Euronext Brussels and Euronext Amsterdam, and (ii) €140.59. Subsequent warrant B is still subject to approval by an extraordinary general meeting of shareholders. This extraordinary general meeting of shareholders shall take place between 57 and 59 months after the closing of the subscription agreement (August 23, 2019) and this warrant will have substantially similar terms, including as to exercise price, to the initial warrant B. The agreement also includes a 10-year standstill restricting Gilead’s ability to propose a business combination with or acquisition of Galapagos or increase its stake in Galapagos beyond 29.9% of the company’s issued and outstanding shares, subject to limited exceptions. On November 6, 2019 Gilead exercised warrant A and increased its ownership in Galapagos to 25.10% of the then outstanding shares. Warrant A expired in October 2020. Gilead’s ownership amounted to 25.49% at December 31, 2021.

3. Significant accounting policies

Our principal accounting policies are summarized below.

BASIS OF PREPARATION AND GOING CONCERN ASSUMPTION

The consolidated financial statements are prepared in accordance with the International Financial Reporting Standards (IFRS), issued by the International Accounting Standards Board (IASB) and the interpretations issued by the IASB’s International Financial Reporting Interpretation Committee. The consolidated financial statements provide a general overview of our activities and the results achieved. They give a true and fair view of our financial position, our financial performance and cash flows, on a going concern basis.

NEW STANDARDS AND INTERPRETATIONS APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2020

New standards and interpretations applicable for the annual period beginning on January 1, 2020 did not have a material impact on our consolidated financial statements.

NEW STANDARDS AND INTERPRETATIONS APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2021

New standards and interpretations applicable for the annual period beginning on January 1, 2021 did not have a material impact on our consolidated financial statements.

STANDARDS AND INTERPRETATIONS PUBLISHED, BUT NOT YET APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2021

A number of new standards are effective for annual periods beginning on or after January 1, 2022 with earlier adoption permitted. However we have not early adopted new or amended standards in preparing our consolidated financial statements. We are currently still assessing the impact of these new accounting standards and amendments that are not yet effective but we expect no standard to have a material impact on our financial statements in the period of initial application.

The following amendments are effective for the period beginning 1 January 2022:

● Onerous Contracts – Cost of Fulfilling a Contract (Amendments to IAS 37);

● Property, Plant and Equipment: Proceeds before Intended Use (Amendments to IAS 16);

● Annual Improvements to IFRS Standards 2018-2020 (Amendments to IFRS 1, IFRS 9, IFRS 16 and IAS 41); and

● References to Conceptual Framework (Amendments to IFRS 3).

The following amendments are effective for the period beginning 1 January 2023:

● Disclosure of Accounting Policies (Amendments to IAS 1 and IFRS Practice Statement 2);

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● Definition of Accounting Estimates (Amendments to IAS 8);

● Deferred Tax Related to Assets and Liabilities arising from a Single Transaction (Amendments to IAS 12); and

● IFRS 17 Insurance Contracts and Amendments to IFRS 17.

CONSOLIDATED REPORTING

The consolidated financial statements comprise the financial statements of Galapagos NV and entities controlled by Galapagos NV. Control is achieved where Galapagos NV has the power to direct the relevant activities of another entity so as to obtain benefits from its activities. The results of subsidiaries are included in the statement of operations and statement of comprehensive income from the effective date of acquisition up to the date when control ceases to exist. Where necessary, adjustments are made to the financial statements of subsidiaries to ensure consistency with our accounting policies. All intra-group transactions, balances, income and expenses are eliminated when preparing the consolidated financial statements.

INTANGIBLE ASSETS

Expenditure on research activities is recognized as an expense in the period in which it is incurred.

An internally generated intangible asset arising from our development activities is recognized only if all of the following conditions are met:

● Technically feasible to complete the intangible asset so that it will be available for use or sale

● We have the intention to complete the intangible assets and use or sell it

● We have the ability to use or sell the intangible assets

● The intangible asset will generate probable future economic benefits, or indicate the existence of a market

● Adequate technical, financial and other resources to complete the development are available

● We are able to measure reliably the expenditure attributable to the intangible asset during its development

(i) Internally generated intangible assets

The amount capitalized as internally generated intangible assets is the sum of the development costs incurred as of the date that the asset meets the conditions described above. Because of risks and uncertainties inherent to the regulatory authorizations and to the development process itself, management estimates that the conditions for capitalization are not met until we obtain regulatory approval from the competent authorities.

Currently we recognize all development costs as an expense in the period in which they are incurred, even for approved products because they do not generate separately identifiable incremental future economic benefits that can be reliably measured.

(ii) Licences, patents & know-how

Acquired in-process research and development obtained through in-licensing agreements, business combinations, collaboration agreements or separate acquisitions are capitalized as an intangible asset provided that they are separately identifiable, controlled by us and expected to provide economic benefits. As the probability criterion in IAS 38 is always considered to be satisfied for separately acquired research and development assets, upfront and milestone payments to third parties for products or compounds for which regulatory approval has not yet been obtained are recognized as intangible assets. We consider such intangible assets as not yet available for use until the moment that the underlying asset is approved and commercially launched. Amortization will commence when the underlying asset is approved for commercialization and the asset will be amortized over its useful life.

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Licenses, patents and know-how will be amortized over their useful life (generally between 5 and 20 years), using the straight-line method.

Intangible assets may also consist of upfront fees paid to third party institutions in exchange for an option to negotiate a license to any of the third party’s rights in technology resulting from the collaboration. The upfront fee paid in exchange for this option is capitalized as intangible asset and amortized over the expected duration of the option.

In the event an asset has an indefinite life, this fact is disclosed along with the reasons for being deemed to have an indefinite life. Intangible assets with an indefinite useful life and intangible assets which are not yet available for use are tested for impairment annually, and whenever there is an indication that the asset might be impaired.

(iii) Software

Acquired software is recognized at cost less accumulated amortization and any impairment loss. Amortization is recognized so as to write off the cost of assets over their useful lives (generally between 3 and 5 years), using the straight-line method.

(iv) Contract costs

Contract costs are those costs we incur to obtain a contract with a customer that we would not have incurred if the contract has not been obtained and are capitalized as intangible assets only if they are expected to be recoverable. Capitalized contract costs are amortized on a systematic basis that reflects the pattern of transfer of the related promised goods or services to the customer. Costs that we would have incurred regardless of whether the contract is obtained or those costs that are not directly related to obtaining a contract would not be capitalized.

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment are recognized at cost less accumulated depreciation and any impairment loss.

Depreciation of an asset begins when it is available for use, ie when it is in the location and condition necessary for it to be capable of operating in the manner intended by management.

Depreciation is recognized so as to write off the cost of assets over their useful lives, using the straight-line method, on the following bases:

● Installation & machinery: 3–15 years

● Furniture, fixtures & vehicles: 4–10 years

Leasehold improvements are depreciated 3 -10 years, being the term of the lease, unless a shorter useful life is expected.

The other tangible assets category mainly consists of assets under construction. Assets under construction are not depreciated.

Any gain or loss incurred at the disposal of an asset is determined as the difference between the sale proceeds and the carrying amount of the asset and is recognized in profit or loss.

LEASES

All leases are accounted for by recognizing a right-of-use asset and a corresponding lease liability except for:

● Leases of low value assets; and

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● Leases with a duration of 12 months or less

Liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the lease payments that are not paid at the commencement date, discounted using the rate implicit in the lease. If this rate cannot be readily determined, we will apply the incremental borrowing rate. The lease payments can include fixed payments, variable payments that depend on an index or rate known at the commencement date, expected residual value guarantees, termination penalties and extension option payments or purchase options if we are reasonably certain to exercise this option.

After initial recognition, the lease liability will be measured at amortized cost using the discount rate determined at commencement and will be re-measured (with a corresponding adjustment to the related right-of-use asset) when there is a change in future lease payments in case of renegotiation, changes of an index or rate or in case of reassessment of options.

At the commencement date, the right-of-use assets are measured at cost, comprising the amount of the initial lease liability, initial direct costs and the expected dismantling and removing costs (when we incur an obligation for these costs), less any lease incentives received from the lessors.

After initial recognition, the right-of-use assets are measured at cost and depreciated over the shorter of the underlying asset's useful life and the lease term on a straight-line basis. The right-of-use assets will be adjusted for any re-measurements of the lease liability as a result of lease modifications. The right-of-use assets are subject to impairment testing if there is an indicator for impairment, as for property, plant and equipment. The right-of-use assets are presented in the statement of financial position under the caption “Property, plant and equipment” and the lease liabilities are presented as current and non-current lease liabilities.

In determining the lease term, we consider all facts and circumstances that create an economic incentive to exercise an extension option, or not exercise a termination option. We only include extension options (or periods after termination options) in the lease term if the lease is reasonably certain to be extended (or not terminated). The assessment is reviewed if a significant event or a significant change in circumstances occurs which affects this assessment and that is within our control.

Each lease payment is allocated between the liability and financial expenses. The finance cost is charged to the income statement over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

INVENTORIES

Inventories consist of raw materials, semi-finished products and finished products purchased for resale. These inventories are initially recognized at cost, and subsequently at the lower of cost and net realizable value. Cost comprises all costs of purchase, including transportation costs, and is determined using the FIFO-method.

FINANCIAL INSTRUMENTS

Financial assets and financial liabilities are recognized on our balance sheet when we become a party to the contractual provisions of the instrument. We do not actively use currency derivatives to hedge planned future cash flows, nor do we make use of forward foreign exchange contracts, outside of the Gilead transaction, fully settled at December 31, 2019. Additionally, we do not have financial debts at December 31, 2021.

(i) Financial assets

Financial assets are initially recognized either at fair value or at their transaction price. All recognized financial assets will subsequently be measured at either amortized cost or fair value under IFRS 9 on the basis of both our business model for managing the financial assets and the contractual cash flow characteristics of the financial asset.

● a financial asset that (i) is held within a business model whose objective is to collect the contractual cash flows and (ii) has contractual cash flows that are solely payments of principal and interest on the principal

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amount outstanding is measured at amortized cost (net of any write down for impairment), unless the asset is designated at fair value through profit or loss (FVTPL) under the fair value option;

● a financial asset that (i) is held within a business model whose objective is achieved both by collecting contractual cash flows and selling financial assets and (ii) has contractual terms that give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding, is measured at fair value through other comprehensive income (FVTOCI), unless the asset is designated at FVTPL under the fair value option;

● all other financial assets are measured at FVTPL.

A financial asset is classified as current when the cash flows expected to flow from the instrument mature within one year.

We derecognize a financial asset when the contractual rights to the cash flows from the asset expire, or we transfer the rights to receive the contractual cash flows on the financial asset in a transaction in which substantially all the risks and rewards of ownership of the financial asset are transferred.

We classify non-derivative financial assets into the following categories:

● financial assets at fair value through profit or loss (equity instruments, current financial investments and cash equivalents)

● financial assets at amortized cost (receivables, current financial investments and cash and cash equivalents).

Financial assets at fair value through profit or loss

Financial assets are designated at fair value through profit or loss if we manage such investments and make purchase and sale decisions based on their fair value in accordance with the investment strategy. Attributable transaction costs are recognized in profit or loss as incurred. Financial assets at fair value through profit or loss are measured at fair value, and changes therein, which take into account any dividend income, are recognized in profit or loss.

Equity instruments

We hold investments in equity instruments, which based on IFRS 9, are designated as financial assets at fair value through profit or loss. The fair value of listed investments is based upon the closing price of such securities on Euronext at each reporting date. If there is no active market for an equity instrument, we establish the fair value by using valuation techniques.

Current financial investments measured at fair value through profit or loss

Current financial investments include financial assets measured at fair value through profit or loss and may comprise short term bond funds that have a maturity equal or less than 12 months, and money market funds.

Cash equivalents measured at fair value through profit or loss

Cash equivalents measured at fair value through profit or loss may comprise bonds and money market funds that are readily convertible to cash and are subject to an insignificant risk of changes in value.

Financial assets at amortized cost

Receivables

Receivables are designated as financial assets measured at amortized cost. They are initially measured either at fair value or at transaction price, in the absence of a significant financing component.

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All receivables are subsequently measured in the balance sheet at amortized cost, which generally corresponds to nominal value less expected credit loss provision.

Receivables mainly comprise trade and other receivables and current/non-current R&D incentives receivables.

The R&D incentives receivables relate to refunds resulting from R&D incentives on research and development expenses in France and Belgium. Research and development incentives receivables are discounted over the period until maturity date according to the appropriate discount rates.

Current financial investments measured at amortized cost

Current financial investments measured at amortized cost include treasury bills that have a maturity equal or less than 12 months. We apply settlement date accounting for the recognition and de-recognition of current financial investments measured at amortized cost. Current financial investments measured at amortized cost also include short-term deposits with maturities exceeding three months from the acquisition date.

Cash and cash equivalents measured at amortized cost

Cash and cash equivalents measured at amortized cost mainly comprise of notice accounts and short-term deposits that are readily convertible to cash within three months or less and that are subject to an insignificant risk of changes in value.

Cash and cash equivalents exclude restricted cash, which is presented in the line other non-current assets in the statement of financial position.

(ii) Financial liabilities

Financial liabilities are initially measured either at fair value or at their transaction price. Subsequent to initial recognition, financial liabilities are measured at amortized cost.

Financial liabilities mainly comprise trade and other liabilities.

Trade and other liabilities are comprised of liabilities that are due less than one year from the balance sheet date and are in general not interest bearing and settled on an ongoing basis during the financial year. They also include accrued expense related to our research and development project costs.

We derecognize a financial liability when its contractual obligations are discharged, cancelled or expire.

(iii) Financial instruments: derivative assets/liabilities

Financial assets and financial liabilities are recognized on our balance sheet when we become a party to the contractual provisions of the instrument.

Derivative assets and liabilities are initially measured at fair value. After initial measurement we will measure the derivatives at fair value through profit or loss.

TAXATION

Income tax in the profit or loss accounts represents the sum of the current tax and deferred tax.

Current tax is the expected tax payable on the taxable profit of the year. The taxable profit of the year differs from the profit as reported in the financial statements as it excludes items of income or expense that are taxable or deductible in other years and it further excludes items that are never taxable or deductible. Our liability for current tax is calculated using tax rates that have been enacted or substantively enacted by the balance sheet date.

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Deferred income tax is provided in full, using the liability-method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the financial statements. However, the deferred income tax is not accounted for if it arises from the initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting nor taxable profit nor loss.

Deferred income tax is determined using tax rates (and laws) that have been enacted or substantively enacted by the balance sheet date and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled. Deferred tax assets are recognized to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized. As such, a deferred tax asset for the carry forward of unused tax losses will be recognized to the extent that is probable that future taxable profits will be available.

FOREIGN CURRENCIES

● Functional and presentation currency

Items included in the financial statements of each of our entities are valued using the currency of the primary economic environment in which the entity operates. The consolidated financial statements are presented in Euros, which is our presentation currency.

● Transactions and balances in foreign currency

Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of transaction. Foreign currency gains and losses resulting from the settlement of such transactions and from the translation at closing rates of monetary assets and liabilities denominated in foreign currencies are recognized in the financial result in the statement of operations.

Non-monetary assets and liabilities measured at historical cost that are denominated in foreign currencies are translated using the exchange rate at the date of the transaction.

● Financial statements of foreign group companies

The results and financial position of all our entities that have a functional currency different from Euro are translated as follows:

● Assets and liabilities for each balance sheet presented are translated at the closing rate at the date of that balance sheet;

● Income and expenses for each statement of operations are translated at average exchange rates;

● All resulting cumulative exchange differences are recognized as a separate component of equity;

● Such cumulative exchange differences are recognized in profit or loss in the period in which the foreign operation is disposed of.

RECOGNITION OF EXPENSES LINKED TO CLINICAL TRIAL MILESTONES

We recognize expenses specifically linked to clinical trial milestones with regard to patient recruitment and patient treatment (i.e. completion), incurred in carrying out clinical trials, in line with actual patient recruitment or treatment at each period end, in reference to the milestone targets for patient recruitment or treatment.

This involves the calculation of clinical trial accruals at each period end, for which an estimation of the expected full clinical trial milestone cost is required, as well as the current stage of patient recruitment or treatment.

Clinical trials usually take place over extended time periods and typically involve a set-up phase, a recruitment phase and a completion phase which ends upon the receipt of a final report containing full statistical analysis of trial results. Accruals for patient recruitment and patient completion are prepared separately for each clinical trial in progress

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and take into consideration the stage of completion of each trial including the number of patients that have entered the trial and the number of patients that have been treated in the trial. In all cases, the full cost of each trial is expensed by the time the final report is received.

REVENUE RECOGNITION

Revenues to date have consisted principally of collaboration revenues, which consist of milestones, license fees, non-refundable upfront fees and royalties received in connection with collaboration and license agreements. Starting in 2021 we also have commercial revenues from the sales of Jyseleca, which are reported as “Product net sales” in our consolidated income statement. We also generated revenue from our fee-for-service activities, which is reported as discontinued operations per December 31, 2020.The revenue recognition policies can be summarized as follows:

We recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. To determine revenue recognition for agreements that we determine are within the scope of IFRS 15, we perform the following five steps:

COLLABORATION REVENUES

(i) identify the contract

In our current agreements with customers we are mainly transferring licenses on our IP and in some cases this is combined with access rights and/or providing research and development services and/or cost sharing mechanisms. In some cases our collaborations also include an equity subscription component. If this is the case, we analyze if the criteria to combine contracts, as set out by IFRS 15, are met.

(ii) identify the performance obligations in the contract

Depending on the type of the agreement, there can be one or more distinct performance obligations under IFRS 15. This is based on an assessment of whether the promises in an agreement are capable of being distinct and are distinct from the other promises to transfer goods and/or services in the context of the contract. For some of our agreements we combine the transfer of the license with the performance of research and development activities because we consider that the license is not capable of being distinct and is not distinct in the context of the contract.

(iii) determine the transaction price

Collaboration and license agreements with our commercial partners for research and development activities generally include non-refundable upfront fees; milestone payments, the receipt of which is dependent upon the achievement of certain clinical, regulatory or commercial milestones; license fees, royalties on sales and sometimes reimbursement income or profits sharing arrangements.

a/ License fees or upfront payments

If the license to our intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, we recognize revenues from non-refundable upfront fees allocated to the license at the point in time the license is transferred to the customer and the customer has the right to use the license.

For licenses that are bundled with other promises, we utilize judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. If the performance obligation is satisfied over time, revenue is then recognized based on a pattern that best reflects the transfer of control of the service to the customer.

b/ Milestone Payments other than sales based milestones

A milestone payment is only included in the transaction price to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Where milestone payments are included in the transaction price we estimate the amount to be included in the transaction price using the most likely amount method. The

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transaction price is allocated to each performance obligation on a stand-alone selling price basis. We recognize revenue as or when the performance obligations under the contract are satisfied. At the end of each subsequent reporting period, we re-evaluate the probability of achievement of such milestones and any related constraint. If necessary we adjust our estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenue and earnings in the period of adjustment.

c/ Reimbursement Income for R&D Services

Collaboration and license agreements may include reimbursement or cost sharing for research and development services: such as outsourcing costs and payment for FTEs at contractual rates. R&D services are performed and satisfied over time given that the customer simultaneously receives and consumes the benefits provided by us.

Such costs reimbursements received are recognized in revenues when costs are incurred and agreed by the parties when we are acting as a principal in the scope of our stake of the R&D activities. If the later condition is not fulfilled, costs reimbursements are accounted for as a decrease of the related expenses.

d/ Sales based milestone payment and Royalties

License and collaboration agreements include sales-based royalties, including commercial milestone payments based on the level of sales, and the license has been deemed to be the predominant item to which the royalties relate. Related revenue is recognized as the subsequent underlying sales occur.

(iv) allocate the transaction price to the performance obligations in the contract

We allocate the transaction price to each performance obligation identified in the contract based upon the stand-alone selling price. The stand-alone selling price of each performance obligation is estimated by using one of the following methods: adjusted market assessment approach, the expected cost plus a margin approach or the residual approach. If management assesses that there is only one single performance obligation, the entire transaction price would be allocated to this performance obligation.

(v) recognize revenue when (or as) the entity satisfies a performance obligation

Revenue is recognized when our customer obtains control of the goods and/or services foreseen in the contracts. The control can be transferred over time or at a point in time – which results in recognition of revenue over time or at a point in time.

In case of revenue recognition over time, we use either an input model that considers estimates of the percentage of total research and development costs that are completed each period compared to the total estimated costs (percentage of completion method) or we apply an output method to measure the progress of the satisfaction of the underlying performance obligation. In other cases, depending on specific circumstances, we recognize revenue on a straight-line basis over the estimated term of the performance obligation.

PRODUCT NET SALES

Revenue on the sale of Jyseleca is recorded as “Product net sales” in our consolidated income statement.

Product net sales is the net amount of revenue recognized resulting from transferring control over our products to our customer (for example wholesalers and hospitals). Product sales revenue is recognized at a point in time when control of the goods has transferred to the customer. This is generally when the goods are delivered to the customer depending on the specific incoterms in the contract with a customer.

The amount of revenue recognized is the amount allocated to the satisfied performance obligation taking into account variable consideration. The estimated amount of variable consideration is included in the transaction price only to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration that is included in the transaction price is primarily composed of rebates, discounts, cash discounts and chargebacks granted to various customers that are part of commercial and governmental contractual arrangements or other

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reimbursement programs. Shelf stock adjustments are granted to some of our customers to cover the inventory held by them at the time of a price decrease becomes effective. A liability is recognized for expected rebates, cash discounts, chargebacks or other reimbursements payable directly or indirectly to customers in relation to sales made until the end of the reporting period.

The amount of variable consideration is estimated using several elements such third-party market data, product pricing, the specific terms in the individual agreements, estimated inventory levels and the shelf life of our product. If actual results differ, these estimates will be adjusted.

Net sales are presented net of value added tax and other sales related taxes.

We refer to note 6 for detailed information per agreement and to our Critical judgments in applying accounting policies for more information.

COST OF SALES

Cost of sales includes primarily the purchase cost of the goods sold and transportation costs.

OTHER OPERATING INCOME

Grants and R&D incentives

As we carry out extensive research and development activities, we benefit from various grants and R&D incentives from certain governmental agencies. These grants and R&D incentives generally aim to partly reimburse (approved) expenditures incurred in our research and development efforts and are credited to the statement of operations, under other income, when the relevant expenditure has been incurred and there is reasonable assurance that the grants or R&D incentives are receivable.

EQUITY INSTRUMENTS

Equity instruments issued by us are measured by the fair value of the proceeds received, net of direct issue costs.

EMPLOYEE BENEFITS

a/ Defined contribution plans

Contributions to defined contribution pension plans are recognized as an expense in the statement of operations as incurred.

b/ Defined benefit plans

For defined retirement benefit plans, the cost of providing benefits is determined using the projected unit credit method, with actuarial valuations being carried out at the end of each annual reporting period. Re-measurement, comprising actuarial gains and losses, the effect of the changes to the asset ceiling (if applicable) and the return on plan assets (excluding interest), is reflected immediately in the statement of financial position with a charge or credit recognized in other comprehensive income in the period in which they occur. Re-measurement recognized in other comprehensive income is reflected immediately in retained earnings and will not be reclassified to profit or loss. Past service cost is recognized in profit or loss in the period of a plan amendment. Net interest is calculated by applying the discount rate at the beginning of the period to the net defined benefit liability or asset.

Defined benefit costs are categorized as follows:

● Service cost (including current service cost, past service cost, as well as gains and losses on curtailments and settlements)

● Net interest expenses or income

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● Re-measurement

The retirement benefit obligation recognized in the consolidated statement of financial position represents the actual deficit or surplus in the defined benefit plans. Any surplus resulting from this calculation is limited to the present value of any economic benefits available in the form of refunds from the plans or a reduction in future contributions to the plans. A liability for a termination benefit is recognized at the earlier of when we can no longer withdraw the offer of the termination benefit and when we recognize any related restructuring costs.

c/ Staff bonus plan

We recognize an expense in the statement of operations for staff bonus plans.

d/ Management bonus plan

(I)Bonuses which were granted for performance years until 2018

The management board members, together with other senior managers, are eligible to receive bonuses under the Senior Management Bonus Scheme established in 2006. Pursuant to the rules of the Senior Management Bonus Scheme, 50% of the bonus is paid immediately around year-end and the payment of the remaining 50% is deferred for three years. The deferred 50% component is dependent on the Galapagos share price change relative to the Next Biotech Index (which tracks Euronext-listed biotech companies). The Galapagos share price and the Next Biotech Index at the start and end of the 3-year period is calculated by the average price over the preceding and last month of the 3-year period, respectively.

● If the Galapagos share price change is better than or equal to the change in the Next Biotech Index, the deferred bonus will be adjusted by the share price increase/decrease percentage and paid out

● If the Galapagos share price change is up to 10% worse than the change in the Next Biotech Index, 50% of the deferred bonus will be adjusted by the share price increase/decrease percentage and paid out, and the remainder will be forfeited

● If the Galapagos share price change is more than 10% worse than the change in the Next Biotech Index the deferred bonus will be forfeited

We recognize the possible payment of the deferred component of the Senior Management Bonus Schemes within three years at the moment that the bonus amount is determined, based on the fair value of the liability at each reporting period. The fair value of the liability is measured by use of the Monte Carlo valuation model taking into consideration (a) the average reference price of the Galapagos share and Next Biotech Index, (b) the average price of the reporting period of the Galapagos share and the Next Biotech Index, (c) the simulation of the evolution of the Galapagos share price and the Next Biotech Index based on their volatility and correlation until maturity of the bonus, (d) the applicable discount rates at the end of the reporting period and (e) the probability of the number of beneficiaries assumed to stay with us until maturity of the bonus. The changes in fair value are recognized in profit or loss for the period.

(II)Bonuses which were granted for performance year 2019 and beyond

The management board members, together with other senior managers are eligible to receive a bonus based on achievement of personal and corporate objectives. This bonus is paid in cash.

SHARE-BASED PAYMENTS

a/ Equity-settled share based payments

We grant equity-settled incentives to certain employees, members of the supervisory board and consultants in the form of subscription rights. Equity-settled subscription rights are measured at fair value at the date of acceptance. The fair value determined at the acceptance date of the subscription rights is expensed over time until the end of the vesting period, based on our estimate of subscription right warrants that are expected to be exercised. Fair value is measured by use of the Black & Scholes model. The expected life used in the model has been adjusted, based on management’s best estimate, for the effects of non-transferability, exercise restrictions, and behavioral considerations.

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b/ Long-term incentive plans in RSU’s (Restricted Stock Units)

Management board members and other employees are granted RSU’s. An RSU is a grant that takes the form of a promise that employees will receive Galapagos stock in the future and it will be payable, at the company’s discretion in cash or in shares, upon completion of a certain vesting period. Each RSU reflects the value of one Galapagos share.

The RSU’s are measured based on the average share price over the 30-calendar day period preceding the measurement date. We recognize the corresponding expense and liability over the vesting period. The fair value of the liability is re-measured at each reporting date because currently it is management’s intention to settle the RSU’s in cash.

PROVISIONS

Provisions are recognized in the statement of financial position when we have a present obligation as a result of a past event; when it is probable that an outflow of resources embodying economic benefits will be required to settle the obligations and a reliable estimate can be made of the amount of the obligations. The amount recognized as a provision is the best estimate of the expenditure required to settle the present obligation at the balance sheet date. If the effect is material, provisions are determined by discounting the expected future cash flows at a pre-tax rate that reflects current market assessments of the time value of the money and, when appropriate, the risk specific to the liability.

IMPAIRMENT

(i) Financial assets

The impairment loss of a financial asset measured at amortized cost is calculated based on the expected loss model.

For trade receivables, in the absence of a significant financing component, the loss allowance is measured at an amount equal to lifetime expected credit losses. Those are the expected credit losses that result from all possible default events over the expected life of those trade receivables.

Impairment losses are recognized in the consolidated statement of operations.

(ii) Property, plant and equipment and intangible assets

For intangible assets with an indefinite life or intangible assets not available for use yet, we perform an impairment test at least on an annual basis. Furthermore we review at each balance sheet date the carrying amount of our tangible and intangible assets to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss (if any). Where the asset does not generate cash flows that are independent from other assets, we estimate the recoverable amount of the cash-generating unit to which the asset belongs.

If the recoverable amount of an asset or cash generating unit is estimated to be less than the carrying amount, the carrying amount of the asset is reduced to its recoverable amount. An impairment loss is recognized as an expense immediately.

When an impairment loss subsequently reverses, the carrying amount of the asset is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined, had no impairment loss been recognized for the asset in prior years. A reversal of an impairment loss resulting from a sale of a subsidiary is recognized as income. In other cases impairment losses of goodwill are never reversed.

NET INCOME / LOSS PER SHARE

Basic net income/loss per share is computed based on the weighted average number of shares outstanding during the period. Diluted net income per share is computed based on the weighted average number of shares outstanding including the dilutive effect of warrants, if any.

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SEGMENT REPORTING

We currently have one operating and reportable segment. Prior to the disposal of our fee-for-service business Fidelta our reportable segments were R&D and fee-for-service business. Fidelta is reported as discontinued operations at December 31, 2020 and at December 31, 2021.

ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS

A discontinued operation is a component of an entity that either has been disposed of, or that is classified as held for sale. It must either: represent a major separate line of business or geographical area of operations; be part of a single coordinated disposal plan; or be a subsidiary acquired exclusively with a view to resale.

Intercompany transactions between continuing and discontinued operations are eliminated against discontinuing operations.

Non-current assets and disposal groups are classified as assets held for sale if their carrying amount is to be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the asset (or disposal group) is available for immediate sale in its present condition.

They are stated at the lower of carrying amount and fair value less costs to sell with any resulting impairment recognized. Assets related to discontinued operations and assets of disposal group held for sale are not depreciated.

On January 4, 2021, we sold of our fee-for-service business Fidelta. We classified the assets and the associated liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020.

4. Critical accounting judgments and key sources of estimation uncertainty

In the application of the accounting policies, we are required to make judgments, estimates and assumptions about the carrying amounts of assets and liabilities that are not readily apparent from other sources. The estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates.

Our estimates and assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period or in the period of the revisions and future periods if the revision affects both current and future periods.

The following are the critical judgments that we have made in the process of applying the accounting policies and the key sources of estimation that have the most significant effect on the amounts recognized in the consolidated financial statements presented elsewhere in this annual report.

Critical judgments in applying accounting policies

IFRS 15 – Revenue recognition Gilead

Our critical judgments were as follows:

Identification of the contract

● Despite our obligation to pay future sales-based royalties to Gilead and a change in the governance structure for the development activities, management judged that all activities are still beneficial for the further development of filgotinib, for which Gilead still owns the ex-Europe rights. All contract modifications have thus been analyzed following the requirements of IFRS 15 as we concluded that Gilead is still to be considered as a customer. This is also supported by the fact that we concluded that there continues to be only one performance obligation with respect to filgotinib.

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Identification of the performance obligation

● The modifications of 2020 and 2021 did not give rise to new performance obligations. There was only a change in scope and price of the existing filgotinib performance obligation, which was only partly satisfied at the time of the modification. It’s management’s judgement that the Group A and Group B development activities (see note 2 for more details) still to be performed are interrelated and thus cannot be seen as separate performance obligations. Based on this, the contract modification has been treated on a cumulative catch-up basis under IFRS 15.

Allocation of the total transaction price

● The increased fixed consideration as result of the modification has been allocated in its entirety to the filgotinib performance obligation. We assessed that the contract modification only changes the scope of the filgotinib performance obligation and the change in both fixed and variable consideration is reflective of the updated stand-alone selling price for the remaining activities of this performance obligation. If we would have concluded that the increased consideration was not, or only partially, related to the filgotinib performance obligation, the consideration would have been potentially allocated to other performance obligations in the contract, which would alter the timing of revenue recognition.

● The denominator used in the calculation of the percentage of completion reflects our best estimate of the total costs to complete the filgotinib performance obligation. These costs were assessed considering management’s best estimate of the design and duration of ongoing and planned clinical trials.

Key sources of estimation uncertainty

The following are the key sources of estimation uncertainty that have the most significant effect on the amounts recognized in our consolidated financial statements for the year ended December 31, 2021.

Costs to complete the filgotinib performance obligation

●The denominator used in the calculation of the percentage of completion reflects our best estimate of the total costs to complete the filgotinib performance obligation (which is composed of the actual costs already incurred at reporting date and our best estimate of the remaining costs to complete the performance obligation). As our estimate of the costs is depending on the evolution of the development activities, it may be subject to change in the future. If the outcome of certain activities would be different from the assumptions that we made, it could lead to a material adjustment to the total estimated costs, resulting in a reallocation of revenue between current and future periods. Revenue recognized for upfront payments and milestone payments in 2021 amounted to €235.7 million. Our total deferred income balance related to this filgotinib performance obligation amounts to €604.9 million on December 31, 2021. At reporting date, had our best estimate of the remaining cost to complete the filgotinib performance obligation been increased by 5%, this would have resulted in a decrease in revenue recognition in 2021 of €16.7 million and a corresponding increase in current and non-current deferred income. Had our best estimate of the remaining cost to complete the filgotinib performance obligation been decreased by 5%, this would have resulted in an increase in revenue recognition in 2021 of €17.5 million and a corresponding decrease in current and non-current deferred income.

5. Segment information

We operate in one segment, which is developing and commercializing medicines with novel modes of action. Operating segments are identified as components of an entity about which separate discrete financial information is available for evaluation by the chief operating decision maker in making decisions regarding resource allocation and assessing performance. The chief operating decision maker made such decisions and assessed performance at the company level, as one segment.

GEOGRAPHICAL INFORMATION

In 2019, 2020 and 2021, our continuing operations were mainly located in Belgium, France, the Netherlands, Germany, Italy, Spain, Switzerland and United Kingdom.

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Following table summarizes the collaboration revenues by destination of customer:

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
United States of America	€	467,978	€	472,445	€	793,873
Europe		2,114		5,605		41,028
Total collaboration revenues	€	470,093	€	478,051	€	834,901

Following table summarizes the collaboration revenues by major customers:

		Year ended December 31,
		2021			2020				2019
		(Euro, in thousands)	%		(Euro, in thousands)	%			(Euro, in thousands)	%
Gilead:
United States of America (1)	€	467,978	100%	€	472,445	99%		€	793,873	95%
Europe (1)		2,071	0%		1,460	0%			(4,570)	(1)%
AbbVie:
Europe		—	0%		(52)	0%			26,356	3%
Novartis:
Europe		—	0%		4,125	1%			19,177	2%
Total revenues from major customers	€	470,049	100%	€	477,978	100%	€	€	834,836	100%

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019, included a negative catch-up effect on closing date of €245.9 million resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

As of December 31, 2021, we held €197.6 million of non-current assets (€170.9 million in 2020; €91.0 million in 2019) distributed as follows:

	December 31,
	2021		2020		2019(*)
		(Euro, in thousands)
Belgium	€	98,295	€	113,524	€	57,007
France		21,051		18,398		18,102
The Netherlands		66,621		28,210		7,951
Croatia		—		—		6,182
Switzerland		7,181		7,668		1,057
Spain		3,029		2,755		—
Other		1,438		388		681
Total non-current assets	€	197,615	€	170,943	€	90,979

(*) In accordance with IFRS 8 we only present the total of the property, plant and equipment and intangible assets in this disclosure note. This is a change in presentation compared to the amounts that were published in the disclosure note for the year ended December 31, 2019. We elected to adjust the historical consolidated financial information presented in this disclosure note to reflect this change in presentation.

As the net assets associated with Fidelta d.o.o. (Croatia) will be recovered principally through a sale transaction rather than through continuing use, we have classified these assets and the associated liabilities as held for sale in our financial statements for the year ended December 31, 2020.

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6. Total revenues

PRODUCT NET SALES

We reported net sales of Jyseleca for the year ended December 31, 2021 amounting to €14.8 million, which reflects the net sales booked by Galapagos after the transition from Gilead. Our counterparties for the sales of Jyseleca during 2021 were hospitals and wholesalers located in Belgium, the Netherlands, France, Italy, Spain and Germany. Net sales exclusively consisted of sales of Jyseleca.

COLLABORATION REVENUES

The following table summarizes details of collaboration revenues for the years ended December 31, 2021, 2020 and 2019 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, and royalties.

	Over time	Point in time		2021		2020		2019
				(Euro, in		(Euro, in		(Euro, in
				thousands)		thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	433,884	€	411,417	€	812,058
Gilead collaboration agreement for ziritaxestat		Ö		-		-		666,968
Gilead collaboration agreement for filgotinib (1)	Ö			203,301		181,816		62,602
Gilead collaboration agreement for drug discovery platform	Ö			230,582		229,601		80,918
AbbVie collaboration agreement for CF	Ö			-		-		1,569
Milestone payments				32,408		46,261		2,878
Gilead collaboration agreement for filgotinib (1)	Ö			32,408		46,261		(21,187)
AbbVie collaboration agreement for CF	Ö			-		-		24,065
Reimbursement income				-		4,073		19,900
Novartis collaboration agreement for MOR106	Ö			-		4,125		19,177
AbbVie collaboration agreement for CF	Ö			-		(52)		723
Royalties				3,801		16,300		66
Gilead royalties on Jyseleca		Ö		3,757		16,227		-
Other royalties		Ö		43		72		66
Total collaboration revenues			€	470,093	€	478,051	€	834,901

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019 included a negative catch-up effect on closing date of €245.9 million resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

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The below table summarizes the transaction price of our collaboration with Gilead.

	December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020		Other movements in 2021		Filgotinib amendment (September 6, 2021)		December 31, 2021
Allocation of transaction price
Upfront consideration	€	3,845,373			€	160,000	€	4,005,373			€	12,643	€	4,018,016
Milestones achieved		104,171	€	90,192				194,363						194,363
Royalties		—		16,227				16,227	€	3,757				19,984
Impact initial valuation of share subscription		124,604						124,604						124,604
		4,074,148		106,419		160,000		4,340,567		3,757		12,643		4,356,967
Less :
Warrants issuance liabilities
Warrant A		(43,311)						(43,311)						(43,311)
Initial warrant B		(2,545)						(2,545)						(2,545)
Subsequent warrant B		(16,184)		8,325				(7,859)		5,417				(2,442)
		4,012,108		114,744		160,000		4,286,852		9,174		12,643		4,308,669
Allocation to performance obligations
Ziritaxestat		666,967						666,967						666,967
Filgotinib (1)		1,060,395		106,419	€	160,000		1,326,814		3,757	€	12,643		1,343,214
Drug discovery platform (10 years)	€	2,284,747	€	8,325			€	2,293,072	€	5,417			€	2,298,489

(1)With regard to the additional consideration received as a result of the Option, License and Collaboration agreement (July 14, 2019) allocated to the filgotinib performance obligation, we assumed the existence of a significant financing component estimated to €44.5 million as of December 31, 2019 reflecting the time value of money on the estimated recognition period. This financing component was reassessed to €55.3 million as of December 31,2020, and to €57.3 million at December 31, 2021.

A summary of our main contracts with customers is given below:

Collaboration with Gilead

We refer to note 2 of this financial report for a general description of our collaboration with Gilead.

We retain the following three performance obligations, of which the first one was satisfied completely in 2019; (i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 to 100/0 (for Group A activities only) on the global development activities of filgotinib, until we complete the remaining development activities (Group A and Group B activities).

We concluded as follows:

Determination of the total transaction price

● In connection with this agreement with Gilead, we recognized a deferred income and an offsetting current financial asset (derivative) of €85.6 million upon signing of the share subscription agreement with Gilead as required under IFRS 9. The deferred income has been added to the transaction price at inception of the agreement because it is considered to be part of the overall consideration received for the three performance obligations.

● We considered that the transaction price included a premium paid by Gilead (through the upfront payment) to acquire warrants (warrant A and warrant B) in the future, upon approval by the shareholders. We measured both warrants at fair value and recognized a warrant issuance liability at closing of the transaction for the same amount (as part of the current deferred income line). This liability is re-measured at each reporting period with a corresponding impact on the allocation of the transaction price to the performance obligation relating to the drug discovery platform as long as the warrants are not approved by the shareholders. Due to the fact that warrant A and initial warrant B were already approved in 2019, only the remeasurement of

F-31

subsequent warrant B still has an impact on the transaction price considered for the revenue recognition of the performance obligation relating to the drug discovery platform.

● We assessed that the contract modifications of December 15, 2020 and of September 6, 2021 only change the scope of the filgotinib performance obligation and the changes in both fixed and variable consideration are reflective of the updated stand-alone selling price for the remaining activities of this performance obligation. As a result of these modifications, there were increases in the transaction prices of €160.0 million and $15 million, respectively, which have been allocated in their entirety to the filgotinib performance obligation.

Financing component

● Management has considered it is appropriate to adjust the part of the transaction price that was allocated to the filgotinib performance obligation, for the time value of money. The additional consideration as a result of the contract modification of December 15, 2020 has also been adjusted for the time value of money.

License on GLPG1690

● This performance obligation is completely satisfied at December 31, 2019. Following the discontinuation of the ziritaxestat trials, we do not expect future milestone payments or royalties.

● After granting the license for GLPG1690, we will share Phase 3 costs equally with Gilead. Any cost reimbursement from Gilead was not recognized as revenue but accounted as a decrease of the related expenses.

Filgotinib amendment

● There is one single performance obligation under IFRS 15: the transfer of a license combined with performance of R&D activities. This is because we considered that the license is not distinct in the context of the contract.

● The transaction price is currently composed of a fixed part, being non-refundable upfront and license fees and a variable part, being milestone payments, sales based milestones and sales based royalties, and cost reimbursements for R&D activities delivered. Milestone payments are included in the transaction price of the arrangement to the extent that it is highly probable that a significant reversal of revenue will not occur. Milestone payments received from Gilead are recognized in revenue over time till the end of the development plan. Sales based milestones and sales based royalties are also part of the arrangement and are recognized as revenues at a point in time at the moment they occur. During 2020 and 2021 we reported respectively €16.2 million and €3.8 million of revenues from royalties from Gilead.

● Revenues, excluding sales based milestones and sales based royalties, are recognized over time through satisfaction of the performance obligation. The "cost-to-cost" input model is applied to measure the progress of the satisfaction of this performance obligation. The estimated costs to complete the performance obligation have been reassessed as a result of the contract modifications from 2020 and 2021.

Access rights to the drug discovery platform, option rights and R&D activities

● The revenue allocated to the drug discovery platform will be recognized over time as Gilead receives exclusive access to our drug discovery platform and option rights on our current and future pipeline as well as R&D activities during the collaboration term. Management concluded that an equal spread over the collaboration period is the most reliable and appropriate recognition method.

● At inception of the collaboration (July 2019) we assessed the appropriate period over which to recognize the drug discovery platform revenue to be 10 years. This is because we granted exclusive rights over a 10-year period. However, if at the end of the 10-year period, some programs in existence as of this time would have reached the clinic (i.e. IND filed with regulatory authorities), the rights for those specific programs may be extended, for a maximum of three years. This critical estimate is reassessed at each year-end based on the evolution of our pipeline and is still valid per December 31, 2021.

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Collaboration with Novartis

● Together with our collaboration partner MorphoSys, we closed a license agreement with Novartis for MOR106 in July 2018. MorphoSys and we received an equal share of an upfront payment of €95 million and were entitled to potential future milestone payments and royalties. Novartis would bear all future research, development, manufacturing and commercialization costs related to MOR106. Costs reimbursements received from Novartis were recognized in revenues when costs were incurred and agreed by the parties as we were acting as a principal in the scope of the performance of the R&D activities.

On October 28, 2019, we announced the end of the clinical development program of MOR106 in AtD.

On December 17, 2019, Novartis sent us a termination notice, informing us of its decision to terminate the agreement in its entirety. The termination became effective in 2020.

Collaboration with AbbVie

We concluded as follows for the related revenue recognition:

● There was one single performance obligation under IFRS 15: the transfer of a license combined with performance of R&D activities. This was because we considered that the license was not capable of being distinct and was not distinct in the context of the contract.

● The transaction price of our agreement with AbbVie was composed of a fixed part, being upfront license fees, and a variable part, being milestone payments and cost reimbursements for R&D activities delivered. Milestone payments were only included in the transaction price to the extent that it was highly probable that a significant reversal in the amount of cumulative revenue recognized would not occur when the uncertainty associated with the variable consideration is subsequently resolved. Given the nature of our industry, we only consider this once the milestone event is achieved. Sales based milestones and sales based royalties are a part of our arrangement but are not yet included in our revenues.

● The transaction price was allocated to the single performance obligation and revenues were recognized over the estimated service period based on a pattern that reflects the transfer of the license and progress to complete satisfaction of the R&D activities. This is because we considered that there is a transformational relationship between the license and the R&D activities to be delivered.

● We chose an input model to measure the satisfaction of the single performance obligation that considers a percentage of costs incurred for this program that are completed each period (percentage of completion method).

● Costs reimbursements received from AbbVie were recognized in revenues when costs were incurred and agreed by the parties as we were acting as a principal in the scope of our stake of the R&D activities of this license and collaboration agreements.

● The second amended and restated collaboration agreement signed on October 24, 2018 was assessed to be a contract modification including a change in scope and in pricing as the remaining goods or services were not distinct and form part of the single performance obligation that was partially satisfied at the date of the contract modification. We concluded that we must account for this second amended and restated collaboration agreement as if it was part of the existing contract and recognized an adjustment to revenue to reflect the contract modification on the transaction price and on the measure of progress towards satisfaction of the performance obligation.

The performance obligation related to this agreement is considered being fully satisfied at December 31, 2019.

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7.      Operating costs and other operating income

RESEARCH AND DEVELOPMENT EXPENDITURE

The following table summarizes research and development expenditure for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(165,239)	€	(161,509)	€	(118,875)
Subcontracting		(251,085)		(301,841)		(255,725)
Disposables and lab fees and premises costs		(24,025)		(22,349)		(19,573)
Depreciation		(17,518)		(11,707)		(9,330)
Professional fees		(15,862)		(12,692)		(1,834)
Other operating expenses		(17,978)		(13,570)		(14,754)
Total R&D expenses	€	(491,707)	€	(523,667)	€	(420,090)

The table below summarizes our research and development expenditure for the years ended December 31, 2021, 2020 and 2019, broken down by program.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Filgotinib program	€	(171,204)	€	(126,879)	€	(100,032)
Ziritaxestat program		(26,725)		(55,902)		(75,951)
OA program on GLPG1972		(2,285)		(22,966)		(19,958)
Toledo program		(91,957)		(87,107)		(47,204)
TYK2 program on GLPG3667		(27,141)		(20,199)		(10,728)
AtD program on MOR106		(112)		(7,618)		(24,051)
Other programs		(172,284)		(202,996)		(142,166)
Total R&D expenses	€	(491,707)	€	(523,667)	€	(420,090)

SALES AND MARKETING EXPENSES

The following table summarizes the sales and marketing expenses for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(59,102)	€	(31,727)	€	(7,558)
Depreciation		(504)		(140)		(61)
External outsourcing costs		(62,321)		(31,885)		(7,558)
Sales and marketing expenses recharged to/from (-) Gilead		59,699		4,711		(8,164)
Professional fees		(532)		(3,420)		(459)
Other operating expenses		(7,196)		(4,007)		(777)
Total sales and marketing expenses	€	(69,956)	€	(66,468)	€	(24,577)

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GENERAL AND ADMINISTRATIVE EXPENSES

The following table summarizes the general and administrative expenses for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(71,190)	€	(70,110)	€	(51,204)
Depreciation and impairment		(16,621)		(5,147)		(1,421)
Legal and professional fees		(26,072)		(25,592)		(11,568)
Other operating expenses		(27,016)		(17,908)		(8,190)
Total general and administrative expenses	€	(140,899)	€	(118,757)	€	(72,382)

OTHER OPERATING INCOME

The following table summarizes other operating income for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Grant income	€	7,334	€	5,452	€	6,549
R&D incentives		44,888		45,951		43,923
Other income		1,526		804		425
Total other operating income	€	53,749	€	52,207	€	50,896

8. Staff costs

The following table illustrates the personnel costs for the years 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Wages and salaries	€	(175,167)	€	(139,681)	€	(113,660)
Social security costs		(29,934)		(26,471)		(14,566)
Pension costs		(8,467)		(7,337)		(4,715)
Costs related to subscription right plans		(70,726)		(79,959)		(38,297)
Other personnel costs		(11,237)		(9,897)		(6,399)
Total personnel costs	€	(295,531)	€	(263,345)	€	(177,637)

9. Fair value re-measurement of share subscription agreement and warrants granted to Gilead

Total fair value re-measurement for the years ended December 31, 2021, 2020 and 2019, can be split up as follows:

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Fair value re-measurement of the share subscription agreement	€	—	€	—	€	(142,350)
Fair value re-measurement of warrant A		—		—		(35,642)
Fair value re-measurement of initial warrant B		2,960		3,034		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	2,960	€	3,034	€	(181,644)

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Fair value re-measurement of the Gilead share subscription agreement
	(Euro, in thousands)
Fair value of financial asset at signing date	€	85,601
Change in fair value recorded in profit or loss		(142,350)
Fair value of financial liability at closing date		(56,749)
Derecognition at closing date		56,749
Fair value on December 31, 2019	€	—

Fair value re-measurement of the financial instrument related to the issuance of warrant A
	(Euro, in thousands)
Fair value of financial liability at warrant approval date	€	(43,311)
Change in fair value recorded in profit or loss		(35,642)
Derecognition at warrant A exercise date		78,953
Fair value on December 31, 2019	€	—

Fair value re-measurement of the financial instrument related to the issuance of initial warrant B	2021		2020		2019
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(3,164)	€	(6,198)
Fair value of financial liability at warrant approval date					€	(2,545)
Change in fair value recorded in profit or loss		2,960		3,034		(3,653)
Fair value on December 31,	€	(204)	€	(3,164)	€	(6,198)

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10. Other financial income / expenses

The following table summarizes other financial income and expense for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Other financial income:
Interest on bank deposit	€	2,865	€	10,030	€	14,305
Effect of discounting long term R&D incentives receivables		93		93		93
Currency exchange gain		60,727		4,697		775
Fair value gain on financial assets held at fair value through profit or loss		—		2,397		5,355
Fair value gain on current financial investments		6,763		—		611
Gain upon sale of financial assets held at fair value through profit or loss		—		—		2
Other finance income		100		1,450		248
Total other financial income		70,548		18,667		21,389
Other financial expenses:
Interest expenses		(11,656)		(9,389)		(1,268)
Effect of discounting long term deferred income		(9,289)		(16,278)		(6,900)
Currency exchange loss		(4,235)		(110,416)		(47,720)
Fair value loss on financial assets held at fair value through profit or loss		(4,919)		—		—
Loss upon sale of financial assets held at fair value through profit or loss		—		(88)		—
Fair value loss on current financial investments		—		(15,901)		(3,700)
Other finance charges		(812)		(773)		(380)
Total other financial expense		(30,911)		(152,844)		(59,968)
Total net other financial expense (-)/ income	€	39,637	€	(134,177)	€	(38,579)

11. Income taxes

INCOME TAXES

The following table summarizes the income tax recognized in profit or loss for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Continuing operations
Current tax	€	(2,020)	€	(1,069)	€	(1,372)
Deferred tax		(404)		(157)		1,537
Income taxes	€	(2,423)	€	(1,226)	€	165

F-37

TAX LIABILITIES

The below table illustrates the tax liabilities related captions in the consolidated statement of financial positionas at December 31, 2021, 2020 and 2019.

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Current tax payable	€	1,782	€	1,248	€	2,037
Total tax liabilities	€	1,782	€	1,248	€	2,037

On December 31, 2021, the tax liabilities were primarily related to our subsidiaries operating on a cost plus basis.

TAXES RECOGNIZED IN STATEMENT OF OPERATIONS

For the purpose of the disclosure below corporation tax was calculated at 25% (2020: 25%, 2019: 29.58%)—which is the tax rate applied in Belgium—on the estimated assessable profit for the year. The applied tax rate for other territorial jurisdictions was the tax rate that is applicable in these respective territorial jurisdictions on the estimated taxable result of the accounting year.

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Income/loss (-) before tax	€	(122,999)	€	(309,775)	€	148,525
Income tax debit/credit (-), calculated using the Belgian statutory tax rate on the accounting income/loss (-) before tax (theoretical)		(30,750)		(77,444)		43,934
Tax expenses/income (-) in statement of operations (effective)		2,423		1,226		(165)
Difference in tax expense/income to explain	€	33,173	€	78,670	€	(44,097)
Effect of tax rates in other jurisdictions	€	(582)	€	184	€	960
Effect of non-taxable revenues		(9,413)		(10,196)		(13,079)
Effect of share based payment expenses without tax impact		17,682		19,990		10,318
Effect of expenses/income (-) not subject to tax		(907)		(639)		53,394
Effect of non tax-deductible expenses		3,812		1,053		724
Effect of recognition of previously non-recognized deferred tax assets		(1,411)		(475)		(2,286)
Effect of tax losses (utilized) reversed		(404)		(150)		(136)
Effect of under or over provision in prior periods		(840)		(25)		30
Effect of non-recognition of deferred tax assets		25,613		69,141		47,413
Effect of derecognition of previously recognized deferred tax assets		135		157		—
Effect of use of investment deduction		(512)		(370)		—
Effect of use of IID		—		—		(141,435)
Total explanations	€	33,173	€	78,670	€	(44,097)

Non-taxable revenues for the years ended December 31, 2021, 2020 and 2019 related to non-taxable subsidies and tax credits. Expenses/income (-) not subject to tax for the years ended December 31, 2021, December 31, 2020 and December 31, 2019, mainly consisted of the fair value re-measurement of the derivative financial liabilities related to the share subscription agreement and the warrants granted to Gilead (see note 9). The use of the IID for the year ended December 31, 2019 referred to the “innovation income deduction” regime in Belgium. This regime allows net profits attributable to revenue from among others patented products (or products for which the patent application is pending) to be taxed at a lower effective tax rate than other revenues. The effective tax rate can thus be reduced up to 3.75%.

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12. Income/loss (-) per share

Basic income/loss (-) per share is calculated by dividing the net income/loss (-) attributable to shareholders by the weighted average number of ordinary shares outstanding during the year. Diluted income/loss (-) per share is calculated based on the weighted average number of shares (diluted) also considering outstanding warrants, for which our average share price of the year was higher than the exercise price.

The possible increase in the number of shares resulting from the outstanding initial warrant B has not been included in the calculation of the diluted income per share as at December 31, 2019 because they were antidilutive.  

Income/loss (-) per share

	Year ended December 31,
	2021		2020		2019
Income/loss (-) per share:
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(103,231)	€	(305,436)	€	149,845
Number of shares (thousands)
Weighted average number of shares for the purpose of basic income/loss (-) per share		65,500		65,075		57,614
Basic income/loss (-) per share (Euros)	€	(1.58)	€	(4.69)	€	2.60
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(103,231)	€	(305,436)	€	149,845
Number of shares (thousands)
Weighted average number of shares for the purpose of diluted income/loss (-) per share		65,500		65,075		57,614
Number of dilutive potential ordinary shares		—		—		2,498
Diluted income/loss (-) per share (Euros)	€	(1.58)	€	(4.69)	€	2.49

As our operations reported a net loss in 2021 and 2020, the outstanding warrants (specified in note 30) have an anti-dilutive effect rather than a dilutive effect. Consequently, basic and diluted loss per share were the same for 2021 and 2020.

13. Intangible assets

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	Software & databases		Brands, licenses, patents & know-how		Contract costs		Total
	(Euro, in thousands)
Acquisition value
On January 1, 2019	€	9,111	€	2,719	€	—	€	11,832
Additions		5,463		2,453		15,384		23,300
Sales and disposals		(64)						(64)
Translation differences		31						31
On December 31, 2019		14,541		5,172		15,384		35,099
Additions		9,494		39,299				48,793
Sales and disposals		(17)						(17)
Reclassifications to assets held for sale		(159)		(38)				(197)
Translation differences		(143)		(1)				(144)
On December 31, 2020		23,717		44,432		15,384		83,534
Additions		2,423		1,250				3,673
Sales and disposals		(1,643)		(5,753)				(7,396)
Translation differences		57						57
On December 31, 2021	€	24,554	€	39,929	€	15,384	€	79,868
Amortization and impairment
On January 1, 2019	€	7,250	€	949	€	—	€	8,200
Amortization		816		678		512		2,006
Sales and disposals		(63)						(63)
Translation differences		31						31
On December 31, 2019		8,034		1,626		512		10,173
Amortization		2,303		2,289		1,538		6,130
Sales and disposals		(17)						(17)
Reclassifications to assets held for sale		(143)		(33)				(176)
Translation differences		(142)						(142)
On December 31, 2020		10,034		3,883		2,050		15,968
Amortization		3,529		2,053		1,538		7,120
Impairment				4,016				4,016
Sales and disposals		(1,643)		(5,753)				(7,396)
Translation differences		57						57
On December 31, 2021	€	11,977	€	4,199	€	3,588	€	19,765
Carrying amount
On December 31, 2019	€	6,507	€	3,546	€	14,872	€	24,927
On December 31, 2020	€	13,683	€	40,549	€	13,334	€	67,565
On December 31, 2021	€	12,577	€	35,730	€	11,796	€	60,103

On December 31, 2021, our balance sheet did not hold any internally generated assets capitalized as intangible asset.

14. Property, plant and equipment

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FULLY OWNED	Land & leasehold improvements		Installation & machinery		Furniture, fixtures & vehicles		Other tangible assets		Total
	(Euro, in thousands)
Acquisition value
On January 1 , 2019	€	5,011	€	38,031	€	3,452	€	4,827	€	51,321
Additions		273		6,382		649		15,076		22,380
Sales and disposals				(1,521)		(97)				(1,618)
Reclassifications				1,792		3		(1,795)		—
Reclassifications to right of use								(251)		(251)
Translation differences				(30)		22				(8)
On December 31, 2019		5,284		44,655		4,028		17,856		71,823
Additions		885		3,737		1,824		32,218		38,664
Sales and disposals		(51)		(1,096)		(81)				(1,228)
Reclassifications		10,625		(623)		2,084		(12,086)		—
Reclassifications to assets held for sale		(2)		(8,938)		(484)		(686)		(10,110)
Translation differences		(2)		(127)		(19)		(30)		(178)
On December 31, 2020		16,739		37,607		7,352		37,273		98,972
Additions		1,924		4,453		434		46,028		52,839
Sales and disposals				(1,001)		(1,177)		(9,316)		(11,494)
Reclassifications		7,273		5,210		1,175		(13,658)		—
Translation differences		195		1		45		(3)		238
On December 31, 2021	€	26,131	€	46,270	€	7,829	€	60,324	€	140,555
Depreciations and impairment
On January 1 , 2019	€	2,686	€	23,403	€	1,819	€	275	€	28,184
Depreciation		394		4,018		399		7		4,818
Sales and disposals				(1,521)		(99)				(1,620)
Reclassifications to right of use								(251)		(251)
Translation differences				(15)						(15)
On December 31, 2019		3,080		25,885		2,119		31		31,117
Depreciation		654		3,587		1,418		7		5,666
Sales and disposals		(51)		(1,058)		(77)				(1,186)
Reclassifications		46		(1,675)		1,629				—
Reclassifications to assets held for sale				(4,327)		(448)		(39)		(4,814)
Translation differences		(1)		(61)		(13)				(75)
On December 31, 2020		3,728		22,350		4,628		—		30,708
Depreciation		1,749		3,398		1,113				6,260
Impairment								9,316		9,316
Sales and disposals				(1,000)		(1,178)		(9,316)		(11,494)
Translation differences		28		1		18				47
On December 31, 2021	€	5,505	€	24,749	€	4,582	€	—	€	34,837
Carrying amount
On December 31, 2019	€	2,204	€	18,770	€	1,909	€	17,825	€	40,707
On December 31, 2020	€	13,011	€	15,257	€	2,724	€	37,273	€	68,264
On December 31, 2021	€	20,626	€	21,521	€	3,247	€	60,324	€	105,718

F-41

The other tangible assets primarily consist of assets under construction, mainly related to our new building in Leiden (the Netherlands), which are not yet available for use and therefore not yet depreciated as per December 31, 2021

In 2021 we recorded an exceptional impairment of €9.3 million on the other tangible fixed assets following our decision to reassess the construction project of our new future headquarter location in Mechelen (Belgium).

RIGHT-OF-USE	Land & building ​		Installation & machinery		Furniture, fixtures & vehicles		Total
	(Euro, in thousands)
Acquisition value
On January 1, 2019	€	24,056	€	219	€	2,130	€	26,406
Additions		3,270		84		1,176		4,530
Reclassifications to right of use				251				251
Translation differences		38						38
On December 31, 2019		27,364		554		3,307		31,225
Additions		18,341		186		2,932		21,459
Sales and disposals				(6)		(161)		(167)
Reclassifications to assets held for sale		(5,940)				(263)		(6,202)
Translation differences		(88)				(3)		(90)
On December 31, 2020		39,678		734		5,812		46,225
Additions		1,722		110		5,092		6,924
Sales and disposals		(4,160)		(251)		(722)		(5,133)
Translation differences		221				2		223
On December 31, 2021	€	37,461	€	593	€	10,184	€	48,239
Depreciations and impairment
On January 1, 2019	€	—	€	—	€	—	€	—
Depreciation		4,666		91		867		5,624
Reclassifications to right of use				251				251
Translation differences		4						4
On December 31, 2019		4,670		342		867		5,879
Depreciation		5,350		128		1,405		6,883
Sales and disposals				(6)		(161)		(167)
Reclassifications to assets held for sale		(1,334)				(115)		(1,448)
Translation differences		(36)				(1)		(36)
On December 31, 2020		8,651		464		1,995		11,111
Depreciation		5,466		161		2,296		7,923
Sales and disposals		(1,696)		(251)		(722)		(2,669)
Translation differences		79						79
On December 31, 2021	€	12,500	€	374	€	3,569	€	16,444
Carrying amount
On December 31, 2019	€	22,694	€	212	€	2,440	€	25,345
On December 31, 2020	€	31,027	€	270	€	3,817	€	35,113
On December 31, 2021	€	24,961	€	219	€	6,615	€	31,794

F-42

	December 31,
		2021		2020		2019
	(Euro, in thousands)
Carrying amount
Property, plant and equipment fully owned	€	105,718	€	68,264	€	40,707
Right-of-use		31,794		35,113		25,345
Total property, plant and equipment	€	137,512	€	103,378	€	66,052

There are no pledged items of property, plant and equipment. There are also no restrictions in use on any items of property, plant and equipment.

15. Other non-current assets

Other non-current assets consisted of non-current restricted cash, financial assets held at fair value through profit or loss and other non-current assets.

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current restricted cash	€	1,425	€	1,482	€	1,418
Financial assets held at fair value through profit or loss		—		8,951		11,275
Other non-current assets		1,048		910		1,399
Total other non-current assets	€	2,473	€	11,343	€	14,091

Restricted cash on December 31, 2021 was composed of bank guarantees on real estate lease obligations in Belgium and in the Netherlands for €1.0 million and €0.4 million respectively.

Restricted cash on December 31, 2020 was composed of bank guarantees on real estate lease obligations in Belgium and in the Netherlands for €1.0 million and €0.5 million respectively.

Financial assets held at fair value through profit or loss on December 31, 2020 consisted of equity instruments of both listed and non-listed companies. During 2021 all equity instruments of the listed companies were sold. We have no restrictions on the sale of these equity instruments and the assets are not pledged under any of our liabilities. These instruments are designated as financial assets held at fair value through profit or loss. The fair value of the equity instrument of the listed company was determined by reference to the closing price of such securities on Euronext at each reporting date (classified as level 1 in the fair value hierarchy). The fair value of the equity instrument in the non-listed company which was originally determined mainly by reference to the initial transaction price (classified as level 3 in the fair value hierarchy) has been reduced to nil at December 31, 2021.

Fair value changes on financial assets with fair value through profit or loss are recognized directly in profit or loss, in other financial income/other financial expenses.

F-43

The table below illustrates these financial assets held at fair value through profit or loss as at December 31, 2021, 2020 and 2019.

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Costs at January 1,	€	3,910	€	4,736	€	4,818
Acquisitions of the year		12		1,994		—
Disposals of the year		(1,928)		(2,820)		(82)
Costs at December 31,		1,994		3,910		4,736
Fair value adjustment at January 1,		5,042		6,539		1,182
Cancellation of fair value adjustment following disposal		(2,116)		(3,894)		2
Fair value adjustment of the year		(4,920)		2,397		5,355
Fair value adjustment at December 31,		(1,994)		5,042		6,539
Net book value at December 31,	€	—	€	8,951	€	11,275

16. Research and Development incentives receivables

The table below illustrates the R&D incentives receivables related captions in the balance sheet at December 31, 2021, 2020 and 2019:

		December 31,
	2021		2020		2019
		(Euro, in thousands)
Non-current R&D incentives receivables	€	127,186	€	111,624	€	93,407
Current R&D incentives receivables		16,827		24,104		21,949
Total R&D incentives receivables	€	144,013	€	135,728	€	115,356

The R&D incentives receivables are future expected refunds or tax deductions resulting from R&D incentives on research and development expenses in France and Belgium. Non-current R&D incentives receivables are reported at their net present value and are therefore discounted over the period until maturity date.

The table below provides detailed information on the maturity of the non-current R&D incentives receivables reported in our balance sheet at December 31, 2021.

Non-current R&D incentives receivables

	December 31, 2021 Maturity date
	2023		2024		2025		2026		2027-2031		Total
	(Euro, in thousands)
French non-current R&D incentives receivables - discounted value	€	11,911		11,713		11,489		—		—	€	35,113
Belgian non-current R&D incentives receivables - discounted value		9,621		12,258		14,895		16,705		38,594		92,073
Total non-current R&D incentives receivables - discounted value	€	21,532	€	23,971		26,384		16,705		38,594	€	127,186

17. Inventories

F-44

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Raw materials	€	14,351
Semi-finished products		1,376
Finished products purchased for resale		4,842	€	36
Total inventories	€	20,569	€	36	€	—

18. Trade and other receivables and other current assets

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current trade receivables		—	€	50,000		—
Trade receivables	€	91,786		134,632	€	39,603
Prepayments		202		219		292
Other receivables		19,349		13,568		14,114
Trade and other receivables		111,337		148,418		54,009
Consumables inventory		—		319		255
Accrued income		639		1,096		4,443
Deferred charges		9,306		10,502		4,439
Other current assets		9,945		11,917		9,138
Total trade and other receivables & other current assets	€	121,282	€	210,335	€	63,147

The carrying amount of trade and other receivables approximates their fair value. Other current assets mainly included accrued income from subsidy projects and deferred charges.

On December 31, 2021, we did not have any provision for expected credit losses.

19. Current financial investments

On December 31, 2021, our current financial investments amounted to €2,469.8 million compared to €3,026.3 million on December 31, 2020 and €3,919.2 million at December 31, 2019. On December 31, 2019 these current financial investments included a short-term bond fund and money market funds. On December 31, 2021 these current financial investments included treasury bills amounting to €877.3 million (€1,454.4 million on December 31, 2020), money market funds amounting to €1,317.5 million (€1,571.9 million on December 31, 2020) and non-cancellable term deposits with a maturity exceeding three months from the acquisition date of €275.0 million (nil on December 31, 2020). Our portfolio of treasury bills contains only AAA rated paper, issued by Germany. Our money market funds portfolio consists of AAA short-term money market funds with a diversified and highly rated underlying portfolio managed by established fund management companies with a proven track record leading to an insignificant risk of changes in value. The funds have an important daily liquidity and can be easily converted to cash.

On December 31, 2021, our current financial investments included $134.6 million held in USD, which could generate a foreign currency exchange gain or loss in our financial results in accordance with the fluctuation of the EUR/USD exchange rate as our functional currency is EUR. This effect is embedded in the fair value result of current financial investments recognized in our consolidated income statement. We refer to note 10 for more details about the exchange gains/losses recognized in our consolidated statement of operations.

We refer to note 33 for more information on these current financial investments.

20. Cash and cash equivalents

F-45

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Cash at banks	€	1,225,860	€	1,239,993	€	907,939
Term deposits		1,007,508		895,194		953,677
Cash and cash equivalents from continuing operations		2,233,368		2,135,187		1,861,616
Cash and cash equivalents included in assets classified as held for sale		—		7,884		—
Total cash and cash equivalents	€	2,233,368	€	2,143,071	€	1,861,616

Cash and cash equivalents may comprise cash at banks, bank deposits and money market funds that are readily convertible to cash and are subject to an insignificant risk of changes in value. Cash and cash equivalents at December 31, 2021 comprised €1,007.5 million of term deposits which all had an original maturity longer than three months, but are readily convertible to cash without a significant penalty. All cash and cash equivalents are available upon maximum three month notice period and without significant penalty. Cash at banks were mainly composed of notice accounts and current accounts. Our credit risk is mitigated by selecting a panel of highly rated financial institutions for our deposits.

On December 31, 2021 our cash and cash equivalents included $807.9 million held in U.S.dollars, which could generate a foreign currency exchange gain or loss in our financial results in accordance with the fluctuation of the EUR/U.S.dollar exchange rate as our functional currency is EUR. We refer to note 10 for more details about the exchange gains/losses recognized in our consolidated statement of operations.

21. Share capital

	2021		2020		2019
	(Euro, in thousands)
On January 1	€	291,312	€	287,282	€	236,540
Share capital increase		763		4,031		55,189
Costs of capital increase		—		—		(4,447)
Share capital on December 31,	€	292,075	€	291,312	€	287,282
Aggregate share capital	€	354,582	€	353,819	€	349,789
Costs of capital increase (accumulated)		(62,507)		(62,507)		(62,507)
Share capital on December 31,	€	292,075	€	291,312	€	287,282

Costs of capital increases are netted against the proceeds of capital increases, in accordance with IAS 32—Financial instruments: disclosure and presentation.

F-46

HISTORY OF SHARE CAPITAL

The history of the share capital of Galapagos NV between January 1, 2019 and December 31, 2021 is as follows:

Date	Share capital increase new shares (in thousands €)		Share capital increase due to exercise subscription rights (in thousands €)		Number of shares issued (in thousands of shares)	Aggregate number of shares after transaction (in thousands of shares)	Aggregate share capital after transaction (in thousands €)
January 1, 2019						54,466	€	294,600
March 20, 2019				808	149
June 20, 2019				1,127	208
August 23, 2019		36,945			6,829
September 19, 2019				1,632	302
November 6, 2019				14,162	2,618
November 25, 2019				515	95
December 31, 2019						64,667		349,789
March 17, 2020				824	152
May 28, 2020				2,356	436
September 19, 2020				467	86
December 4, 2020				384	71
December 31, 2020						65,412		353,819
March 19, 2021				540	100
June 7, 2021				59	11
September 20, 2021				41	8
December 3, 2021				123	23
December 31, 2021						65,553	€	354,582

On December 31, 2021, Galapagos NV’s share capital amounted to €354,582 thousand, represented by 65,552,721 shares. All shares were issued, fully paid up and of the same class.

All of the share issuances listed above were for cash consideration.

F-47

The below table summarizes the capital increases for the years 2019, 2020 and 2021.

(Euro, in thousands, except share data)	Number of shares		Share capital		Share premium			Share capital and share premium	Average exercise price subscription right	Closing share price on date of capital increase
									( in Euro/ subscription right)	( in Euro/ share)
On January 1, 2019		54,465,421	€	236,540	€	1,277,780	€	1,514,320
March 20, 2019 : exercise of subscription rights		149,370		808		2,673		3,481	23.30	90.32
June 20, 2019 : exercise of subscription rights		208,310		1,127		3,198		4,325	20.76	113.55
August 23, 2019 : share subscription by Gilead
Ordinary shares (fully paid)		6,828,985		36,945		923,142		960,087		148.90
Derecognition of financial liability from share subscription agreement						56,749		56,749
Underwriter discounts and offering expenses (paid)				(4,447)				(4,447)
Total share subscription by Gilead		6,828,985		32,498		979,891		1,012,389
September 19, 2019 : exercise of subscription rights		301,745		1,632		5,043		6,675	22.12	145.25
November 6, 2019 : exercise of warrant A by Gilead
Exercise of warrant A		2,617,791		14,162		353,873		368,035
Derecognition of financial liability related to warrant A						78,953		78,953
Total exercise of warrant A by Gilead		2,617,791		14,162		432,826		446,988	140.59	170.75
November 25, 2019 : exercise of subscription rights		95,180		515		2,172		2,687	28.23	172.95
On December 31, 2019		64,666,802		287,282		2,703,583		2,990,865
March 17, 2020 : exercise of subscription rights		152,220		824		4,531		5,355	35.18	141.40
May 28, 2020 : exercise of subscription rights		435,540		2,356		15,558		17,914	41.13	186.60
September 18, 2020 : exercise of subscription rights		86,280		467		1,936		2,403	27.85	117.70
December 4, 2020 : exercise of subscription rights		70,925		384		2,232		2,616	36.88	100.30
On December 31, 2020		65,411,767		291,312		2,727,840		3,019,153
March 19, 2021 : exercise of subscription rights		99,814		540		1,718		2,258	22.62	68.48
June 7, 2021 : exercise of subscription rights		10,940		59		266		325	29.73	61.78
September 20, 2021 : exercise of subscription rights		7,600		41		111		152	19.97	46.93
December 3, 2021 : exercise of subscription rights		22,600		123		456		579	25.61	41.72
On December 31, 2021		65,552,721	€	292,075	€	2,730,391	€	3,022,467

Other information

	Ordinary shares		Total
Par value of shares (€)		5.41		5.41

The supervisory board is authorized for a period of five years starting from the date of publication in the Annexes to the Belgian State Gazette of the shareholders’ resolution that granted the renewed authorization, to increase the share capital of Galapagos NV within the framework of the authorized capital through contributions in kind or in cash, with limitation or cancellation of the shareholders’ preferential subscription rights. Said authorization can be renewed. The authorized capital of Galapagos NV consists of two parts. A general authorization for capital increases up to 20% of the share capital at the time of convening the shareholders’ meeting of October 22, 2019 (i.e. €67,022,402.04) was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State

F-48

Gazette, i.e. November 13, 2019. A specific authorization for capital increases of more than 20% and up to 33% of the share capital at the time of the convening the shareholders' meeting of April 25, 2017 (i.e. €82,561,764.93), was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State Gazette, i.e. May 31, 2017. This specific part of the authorized capital can, however, only be used in a number of specific circumstances and upon a resolution of the supervisory board that all independent supervisory board members (within the meaning of article 526ter of the Belgian Companies Code, resp. article 7:87 of the New Belgian Companies Code) approve. The supervisory board is currently not authorized to increase the share capital after notification by the FSMA (Financial Services and Markets Authority) of a public takeover bid on Galapagos NV’s shares.

As of December 31, 2021, an amount of €41,775,187.16 still remained available under the general part of the authorized capital and an amount of €13,717,929.80 remained available under the specific part of the authorized capital.

22. Deferred tax

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Recognized deferred tax assets and liabilities
Assets	€	4,032	€	4,475	€	4,205
Liabilities	€	—	€	—	€	—
Deferred tax assets unrecognized	€	408,892	€	365,639	€	289,833
Deferred taxes in the consolidated statement of operations	€	(404)	€	(157)	€	1,537
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)		1,411		581		1,537
Deferred tax expenses relating to temporary differences		(629)		(44)		—
Deferred tax expenses relating to use of previously recognized deferred tax assets		(1,185)		(695)		—

The total amount of tax attributes and deductible temporary differences at December 31, 2021 amounted to €1,653.7 million (2020: €1,485.8 million, 2019: €1,179.0 million). This is composed of i) consolidated tax losses carried forward and deductible temporary differences at December 31, 2021 amounting to €1,343.2 million (2020: €1,229.3 million; 2019: €953.3 million), and (ii) innovation income deduction and investment deduction carried forward at December 31, 2021 amounting to €310.5 million (2020: €256.5 million; 2019: €225.7 million).

The available tax losses carried forward that can be offset against future taxable profits amounted to €635.6 million on December 31, 2021. These tax losses can be compensated with future profits for an indefinite period except for an amount of €2.8 million in the United States with expiry date between 2028 and 2034. On December 31, 2021, the available tax losses carried forward in Galapagos NV (Belgium) amounted to €556.9 million. In addition to the latter, Galapagos NV (Belgium) also benefits from the Belgian innovation income deduction regime which led to report, on December 31, 2021, a carried forward tax deduction of €301.3 million (2020: €247.2 million; 2019: €224.7 million) that can also be offset against future taxable results. In addition, Galapagos NV (Belgium) also has available investment deduction carried forward of €1 million (2020 and 2019: €1 million) and a dividend received deduction carryforward of €8.2 million (2020: €8.4 million, 2019: nil) that can be offset against future taxable profits. There is no limit in time for the innovation income deduction, the dividend received deduction carryforward and investment deduction carried forward.

With the exception of 2019, we have a history of losses. We forecast to continue incurring taxable losses in the foreseeable future as we continue to invest in clinical and preclinical development programs and discovery platforms. Consequently, no deferred tax asset was recognized as at December 31, 2021, except for subsidiaries operating on a cost plus basis for which deferred tax assets were recognized for €4.0 million (2020: €4.5 million and 2019: €4.2 million).

23. Lease liabilities

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	December 31,						December 31,
	2021		2020		2019		2021		2020		2019
		(Euro, in thousands)						(Euro, in thousands)
		Lease payments						Present value of lease payments
Lease liabilities
Within one year	€	7,557	€	6,772	€	6,189	€	7,204	€	6,401	€	5,826
In the second to fifth years inclusive		18,873		20,399		16,320		18,381		19,833		15,783
After five years		1,291		3,214		3,844		1,274		3,201		3,775
	€	27,720	€	30,385	€	26,353	€	26,859	€	29,436	€	25,384
Less future finance charges		861		949		969
Present value of lease liabilities	€	26,859	€	29,436	€	25,384
Less amount due for settlement within 12 months								7,204		6,401		5,826
Amount due for settlement after 12 months							€	19,655	€	23,035	€	19,558

24. Trade and other liabilities

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Trade and other liabilities	€	134,304	€	171,316	€	142,510
Other non-current liabilities		7,135		8,096		6,989
Accrued charges		3,114		1,070		923
Total trade and other liabilities	€	144,553	€	180,482	€	150,422

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25. Deferred income

The movement in the non-current and current deferred income is detailed in the table below.

		Total		Gilead collaboration agreement for filgotinib		Gilead collaboration agreement for ziritaxestat		Gilead collaboration agreement for drug discovery platform (2)		AbbVie collaboration agreement for CF		Deferred income related to contracts in our fee-for-service segment		Other deferred income (grants)
		(Euro, in thousands)
On December 31, 2018	€	149,801	€	145,798	€	—	€	—	€	3,224	€	471	€	308
Upfront received and impact of initial valuation of share subscription		3,655,416		641,663		666,967		2,346,787
Milestones received		49,727		27,317						22,410
Significant financing component (3)		6,900		6,900
Revenue recognition of upfront		(1,009,663)		(260,207)		(666,967)		(80,918)		(1,570)
Revenue recognition of milestones		(51,156)		(27,092)						(24,064)
Catch-up effect on closing date (1)		245,883		245,883
Other movements		(46,262)						(45,856)				(109)		(297)
On December 31, 2019		3,000,646		780,261		—		2,220,013		—		362		10
Upfront received		160,000		160,000
Milestones received		90,192		90,192
Significant financing component (3)		16,278		16,278
Revenue recognition of upfront		(411,417)		(181,816)				(229,601)
Revenue recognition of milestones		(46,261)		(46,261)
Other movements		(305)										(362)		57
On December 31, 2020		2,809,133		818,654		—		1,990,412		—		—		67
Upfront received		12,643		12,643
Significant financing component (3)		9,289		9,289
Revenue recognition of upfront		(433,884)		(203,301)				(230,582)
Revenue recognition of milestones		(32,408)		(32,408)
Other movements		(67)												(67)
On December 31, 2021	€	2,364,701	€	604,875	€	—	€	1,759,828	€	—	€	—	€	—

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019 included a negative catch-up effect resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

(2) The upfront received and the outstanding balance on December 31, 2021 and December 31, 2020 comprise the issuance liabilities for the warrants and the upfront payment allocated to the drug discovery platform. Other movements in 2019 include the derecognition of warrant issuance liabilities through the share premium account.

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(3) With regard to the additional consideration received for the extended cost sharing for filgotinib, we assume the existence of a sigificant financing component reflecting the time value of money on the estimated recognition period

The outstanding deferred income balance at December 31, 2021 included €604.9 million related to the collaboration agreement with Gilead for filgotinib (€414.8 million classified as long term deferred income), and €1,759.8 million, including €2.4 million warrant issuance liability related to subsequent warrant B, related to the collaboration agreement with Gilead for the drug discovery platform (€1,530.0 million classified as long term deferred income).

The outstanding deferred income balance at December 31, 2020 included €818.7 million deferred income related to the collaboration agreement with Gilead for filgotinib (€604.9 million classified as long term deferred income), €1,990.4 million, including €7.9 million warrant issuance liability related to subsequent warrant B, related to the collaboration agreement with Gilead for the drug discovery platform (€1,761.1 million classified as long term deferred income), and €0.1 million deferred grant income. We refer to note 6 for a detail of the allocation of the transaction price received from Gilead.

26. Discontinued operations

On November 23, 2020 we signed a share purchase agreement with Selvita S.A. in relation to the disposal of Fidelta d.o.o. (our previous fee-for-service segment). We have classified the assets and the associated liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020.

The transaction was completed on January 4, 2021 for a total consideration of €37.1 million. Fidelta will continue performing drug discovery services for us for the next four years for which we have purchase commitments for an aggregate amount of €19.3 million on December 31, 2021.

DISPOSAL OF FIDELTA

Consideration received

		(Euro, in thousands)
Cash received	€	37,080
Total cash received	€	37,080

Analysis of assets and liabilities over which control was lost

	January 4, 2021
		(Euro, in thousands)
Intangible assets	€	21
Property, plant and equipment		10,050
Other non-current assets		160
Trade and other receivables		4,428
Cash and cash equivalents		7,884
Other current assets		863
Total assets		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		4,479
Current lease liabilities		727
Income tax payable		356
Total liabilities		9,747
Net assets disposed of	€	13,658

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Gain on disposal of Fidelta

		(Euro, in thousands)
Cash received	€	37,080
Net assets disposed of		(13,658)
Effect of cumulative translation adjustment reclassified from equity on loss of control		(731)
Costs associated to the sale		(500)
Gain on disposal	€	22,191

Net cash proceeds from the disposal of Fidelta

		(Euro, in thousands)
Cash received	€	37,080
Less: cash and cash equivalents balances disposed of		(7,884)
Total consideration received, net of cash disposed of		29,196
Costs associated to the sale		(500)
Cash in from disposal of Fidelta, net of cash disposed of	€	28,696

RESULT FROM DISCONTINUED OPERATIONS

	Year ended December 31,
	2021		2020			2019
		(Euro, in thousands, except share and per share data)
Fee-for-service revenues	€	—	€	16,140	€	10,084
Total revenues		—		16,140		10,084
Gain on disposal of subsidiaries		22,191		—		—
Research and development expenses		—		(7,685)		(7,229)
General and administrative expenses		—		(2,000)		(1,319)
Other income		—		—		8
Operating income		22,191		6,455		1,544
Other financial income		—		179		93
Other financial expenses		—		(176)		(102)
Income before tax		22,191		6,458		1,535
Income taxes		—		(893)		(379)
Net income	€	22,191	€	5,565	€	1,156
Basic income per share from discontinued operations	€	0.34	€	0.09	€	0.02
Diluted income per share from discontinued operations	€	0.34	€	0.08	€	0.02
Weighted average number of shares (in thousands of shares)		65,500		65,075		57,614
Weighted average number of shares - Diluted (in thousands of shares)		65,831		67,572		60,112

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CASH FLOW FROM DISCONTINUED OPERATIONS

		2021	2020		2019
		(Euro, in thousands)
Net cash flows generated from operating activities	€	—	€	7,173	€	2,911
Net cash flows generated from/used in (-) investing activities		28,696		(2,284)		(1,350)
Net cash flows used in financing activities		—		(664)		(709)
Net cash flow from discontinued operations	€	28,696	€	4,225	€	852

27. Operating Cash Flow

The following table details the adjustments related to the operating cash flow:

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Adjustment for non-cash transactions
Depreciation, amortization and impairment	€	34,636	€	18,682	€	12,448
Share-based compensation expenses		70,726		79,959		38,297
Decrease in retirement benefit obligations and provisions		(2,347)		(260)		(156)
Unrealized exchange losses/gains (-) and non-cash other financial result		(57,073)		105,055		11,169
Discounting effect of deferred income		9,289		16,278		6,900
Fair value re-measurement of share subscription agreement and warrants		(2,960)		(3,034)		181,644
Net change in (fair) value of current financial investments		(119)		15,900		3,081
Fair value adjustment financial assets held at fair value through profit or loss		4,919		(2,396)		(5,355)
Other non-cash expenses		648		539
Total adjustment for non-cash transactions	€	57,718	€	230,723	€	248,027
Adjustment for items to disclose separately under operating cash flow
Interest expense	€	11,656	€	9,424	€	1,302
Interest income		(2,853)		(7,476)		(9,247)
Tax expense		2,423		2,119		214
Total adjustment for items to disclose separately under operating cash flow	€	11,227	€	4,067	€	(7,731)
Adjustment for items to disclose under investing and financing cash flows
Gain on disposal of subsidiaries	€	(22,191)
Gain (-)/loss on sale of fixed assets			€	82	€	(2)
Realized exchange gain on sale of current financial investments		(6,645)
Interest income on current financial investments		(12)		(2,554)		(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	€	(28,847)	€	(2,472)	€	(5,061)
Change in working capital other than deferred income
Increase (-)/decrease in inventories	€	(21,168)	€	(100)	€	20
Increase (-)/ decrease in receivables		79,859		(177,155)		(67,263)
Increase/decrease (-) in liabilities		(35,353)		31,163		79,940
Total change in working capital other than deferred income	€	23,337	€	(146,092)	€	12,698

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28. Off-balance sheet arrangements

CONTRACTUAL OBLIGATIONS AND COMMITMENTS

On December 31, 2021, we had outstanding obligations for future purchase commitments, which become due as follows:

	Total		Less than 1 year			1 - 3 years		3 - 5 years		More than 5 years
					(Euro, in thousands)
Purchase commitments	€	369,937	€	212,065		€	105,947	€	46,426	€	5,499

In addition to the tables above, we have a contractual cost sharing obligation related to our collaboration agreement with Gilead for filgotinib. The contractual cost sharing commitment amounted to €369.9 million at December 31, 2021 (€493.4 million at December 31, 2020 and €614.1 million at December 31, 2019), for which we have purchase commitments of €169.6 million at December 31, 2021 reflected in the above table (€18.1 million at December 31, 2020, €27.5 million at December 31, 2019).

29. Contingent assets and liabilities

On January 4, 2021, we closed the sale of our Croatian subsidiary Fidelta. Selvita acquired 100% of the outstanding shares in Fidelta for a total consideration of €37.1 million. In accordance with common practice, we gave representations and warranties which are capped and limited in time.

As explained in the summary of the significant transaction in note 2 to our consolidated financial statements, Gilead and we entered into a license and collaboration agreement to co-develop filgotinib in different indications. The collaboration was amended several times and in connection with these amendments Gilead has agreed to irrevocably pay us €160 million, subject to certain adjustments for higher than budgeted development costs. Gilead paid €110 million in 2021 and will pay an additional €50 million in 2022. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. However, we will remain eligible to receive tiered royalty percentages ranging from 20% to 30% on Gilead’s global net sales of filgotinib outside of Europe and future development and regulatory milestone-based payments of up to $295 million and sales-based milestone payments of up to $600 million. We will pay royalties on net sales of filgotinib in Europe to Gilead starting January 1, 2024. Under the terms of the 2021 amendment and upon completion of the transfer of the DIVERSITY clinical study, Gilead will make a one-time payment of $15 million to us in consideration for assuming responsibility for this clinical study. From April 1, 2022, we will also be solely responsible for all development costs for the DIVERSITY clinical study. In addition, if the European Medicines Agency grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY trial, then royalties payable by us to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6% to 10.5% of net sales in Europe. Gilead remains responsible for commercial activities outside of Europe.

Furthermore Gilead received exclusive option rights to acquire a license on compounds. Exercising such an option would trigger an opt-in payment, a 50-50 cost share mechanism for the future development activities, potential future development and sales based milestones and royalties.

30. Share based payments

SUBSCRIPTION RIGHT PLANS

Presented below is a summary of subscription right activities for the reported periods. Various subscription right plans were approved for the benefit of our employees, and for members of the supervisory board and independent consultants of Galapagos NV.

The subscription rights offered to members of the supervisory board vest over a period of 36 months at a rate of 1/36^th per month. Effective January 1, 2020, we no longer grant subscription rights to supervisory board members.

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Subscription rights approved before 2021 cannot be exercised before the end of the third calendar year following the year of the grant. In the event of a change of control over Galapagos NV, all outstanding subscription rights vest immediately and will be immediately exercisable.

On April 30, 2021 the supervisory board approved “Subscription Right Plan 2021 BE”, “Subscription Right Plan 2021 RMV” and “Subscription Right Plan 2021 ROW”, within the framework of the authorized capital. Subscription rights granted under Subscription Right Plan 2021 BE will in principle not vest prior to January 1, 2025 and subscription rights granted under Subscription Right Plan 2021 RMV and Subscription Right Plan 2021 ROW vest in instalments: with 25% of each grant being exercisable as of January 1, 2023, 25% as of January 1, 2024 and 50% (the remainder) as of January 1, 2025.

The table below sets forth a summary of subscription rights outstanding and exercisable at December 31, 2021, per subscription right plan:

				Outstanding					Outstanding	Exercisable
				per	Granted	Exercised	Forfeited	Expired	per	per
	Allocation	Expiry	Exercise	January 1,	during	during	during	during	December 31,	December 31,
Subscription right plan	date	date	price (€)	2021	year	year	year	year	2021	2021
2008	06/26/2008	06/25/2021	5.6	1,365		(1,365)			—	—
2013	05/16/2013	05/15/2021	19.38	55,664		(55,664)			—	—
2014	07/25/2014	07/24/2022	14.54	169,340		(41,800)			127,540	127,540
2015	04/30/2015	04/29/2023	28.75	219,473		(20,250)			199,223	199,223
2015 (B)	12/22/2015	12/21/2023	49.00	261,500		(5,000)			256,500	256,500
2015 RMV	12/22/2015	12/21/2023	49.00	40,000		(5,000)			35,000	35,000
2016	06/01/2016	05/31/2024	46.10	342,625		(11,875)			330,750	330,750
2016 RMV	06/01/2016	05/31/2024	46.10	69,000			—		69,000	69,000
2016 (B)	01/20/2017	01/19/2025	62.50	10,000			—		10,000	10,000
2017	05/17/2017	05/16/2025	80.57	595,500			—		595,500	595,500
2017 RMV	05/17/2017	05/16/2025	80.57	127,500			—		127,500	127,500
2018	04/19/2018	04/18/2026	79.88	1,083,245			(77,250)		1,005,995
2018 RMV	04/19/2018	04/18/2026	79.88	137,500			—		137,500
2019	04/10/2019	04/09/2027	95.11	1,477,840			(177,000)		1,300,840
2019 RMV	04/10/2019	04/09/2027	95.11	193,000			(2,500)		190,500
2020	04/17/2020	04/16/2028	168.42	1,906,034			(288,106)		1,617,928
2020RMV	04/17/2020	04/16/2028	168.42	239,525			(12,050)		227,475
2021BE	04/30/2021	04/29/2029	64.76		1,117,603		(33,567)		1,084,036
2021RMV	04/30/2021	04/29/2029	64.76		291,725		(9,175)		282,550
2021ROW	04/30/2021	04/29/2029	64.76		1,084,105		(102,105)		982,000
Total				6,929,111	2,493,433	(140,954)	(701,753)	—	8,579,837	1,751,013

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		Weighted
		average
		exercise
	Subscription rights	price (Euro)
Outstanding on January 1, 2019	4,626,782	€	53.3
Exercisable on December 31, 2018	882,734		14.0
Granted during the period	1,699,690		95.1
Forfeited during the year	(30,750)		88.9
Exercised during the period	(754,605)		22.8
Expired during the year	—		—
Outstanding on December 31, 2019	5,541,117	€	70.1
Exercisable on December 31, 2019	1,139,682		30.2
Granted during the period	2,173,335		168.4
Forfeited during the year	(40,376)		144.8
Exercised during the period	(744,965)		38.0
Expired during the year	—		—
Outstanding on December 31, 2020	6,929,111	€	104.0
Exercisable on December 31, 2020	1,168,967		37.8
Granted during the period	2,493,433		64.8
Forfeited during the year	(701,753)		118.5
Exercised during the period	(140,954)		23.5
Expired during the year	—		—
Outstanding on December 31, 2021	8,579,837	€	92.7
Exercisable on December 31, 2021	1,751,013		56.6

The table below sets forth the inputs into the valuation of the subscription rights.

	2021BE		2021 RMV/ROW		2020		2020 RMV			2019		2019 RMV
	April 30		April 30		April 17		April 17			April 19		April 19
Exercise Price (€)	€	64.76	€	64.76	€	168.42	€	168.42	€	95.11	€	95.11
Weighted average share price at acceptance date (€)	€	61.10	€	61.10	€	178.95	€	178.95	€	107.05	€	107.45
Weighted average fair value at the acceptance date (€)	€	22.72	€	20.68	€	86.45	€	85.79	€	40.04	€	40.05
Weighted average estimated volatility (%)		40.73		40.61		51.30		51.32		35.86		35.63
Weighted average expected life of the subscription rights (years)		6.43		5.36		6.00		6.00		6.02		6.00
Weighted average risk free rate (%)		(0.21)		(0.29)		(0.44)		(0.44)		(0.27)		(0.28)
Expected dividends		None		None		None		None		None		None

Subscription right Plans

The exercise price of the subscription rights is determined pursuant to the applicable provisions of the Belgian Law of March 26, 1999.

The weighted average estimated volatility is calculated on the basis of the implied volatility of the share price over the weighted average expected life of the subscription rights.

The weighted average expected life of the subscription right is calculated as the estimated duration until exercise, taking into account the specific features of the plans.

Our share based compensation expense in 2021 in relation to subscription right plans amounted to €70,726 thousand (2020: €79,959 thousand; 2019: €38,297 thousand).

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The following table provides an overview of the outstanding subscription rights per category of subscription right holders at December 31, 2021, 2020 and 2019.

Category

	December 31,
	2021		2020		2019
	(in number of subscription rights)
Supervisory board members		157,560		157,560		222,600
Management board members (1)		1,965,000		2,101,874		2,171,874
Personnel		6,457,277		4,669,677		3,146,643
Total subscription rights outstanding		8,579,837		6,929,111		5,541,117

(1) Piet Wigerinck was a member of the management board until November 30, 2021. Note that his outstanding subscription rights at December 31, 2020, were reported on the line ‘Management board members’ while at December 31, 2021 his outstanding subscription rights are presented on the line ‘Personnel’.

The outstanding subscription rights at the end of the accounting period have an average exercise price of €92.69 (2020: €103.95; 2019: €70.09) and a weighted average remaining expected life of 1,955 days (2020: 2,050 days; 2019: 2,023 days).

RESTRICTED STOCK UNITS RSUs

Each RSU represents the right to receive one Galapagos share or a payment in cash of an amount equivalent to the volume-weighted average price of the Galapagos share on Euronext Brussels over the 30-calendar day period preceding the relevant vesting date, in accordance with the terms and conditions of the relevant RSU program.

We currently have the following restricted stock unit (RSU) programs:

● Plan 2020.I and Plan 2021.I, under which the grants are intended to be made every year, subject to a decision of the supervisory board. This plan is intended to provide a long-term incentive to certain of our employees and management board members and replaces the deferred portion of the bonus under the former Senior Management Bonus Scheme;

● Plan 2019.II, Plan 2020.II, Plan 2021.II and Plan 2021.IV These plans are aimed at retaining a specific set of our employees and management board members whose retention is deemed so important for the future performance of Galapagos that an additional incentive is desired. The beneficiaries are nominated by the nomination and remuneration committee and the supervisory board approves the list of beneficiaries; 

● Plan 2019.I This plan was granted at the discretion of the supervisory board;

● Plan 2019.III This exceptional RSU grant took place in 2019 under an RSU Transaction Bonus Plan for the successful closing of the Gilead transaction;

● Plan 2021.III This plan is intended to compensate employees who transferred from Gilead to us in the framework of the transfer of European commercialization rights for the long-term incentive plans within Gilead under which unvested RSU awards lapse upon transfer out of the Gilead group. These employees received a one-time Restricted Stock Units grant from us.

The main characteristics of all these plans are as follows:

● the RSUs are offered for no consideration;

● generally four-year vesting period, with 25% vesting each year, except for some plans or some beneficiaries for which the RSUs will all vest at the same time three years after the offer date; vest 50% after two years and 50% after three years or vest over three years with 34% vesting the first year and 33% in each of the remaining two years;

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● payout will be in cash or shares, at Galapagos’ discretion, it being understood that in respect of members of the management board, any vesting prior to the third anniversary of the offer date will always give rise to a payment in cash rather than a delivery of shares as an incentive;

● any unvested RSUs are forfeited upon termination of service before the vesting date.

The table below sets forth a summary of RSUs outstanding at December 31, 2021, per RSU plan:

		Outstanding				Outstanding
		per	Granted	Forfeited	Paid in cash	per
	Offer	January 1,	during	during	during	December 31,
RSU plan	date	2021	year	year	year	2021
Plan 2019.I.	10/16/2019	33,000		(5,000)	—	28,000
Plan 2019.II.	10/16/2019	81,807		(12,034)	(27,269)	42,504
Plan 2019.III.	10/16/2019	71,072		(5,077)	(35,535)	30,460
Plan 2020.I.	06/05/2020	54,876		(10,925)	(11,424)	32,527
Plan 2020.II.	07/05/2020	72,841		(12,663)	(18,210)	41,968
Plan 2021.I.	05/05/2021		180,844	(26,228)	—	154,616
Plan 2021.II.	05/06/2021		43,328	(2,708)	—	40,620
Plan 2021.III.	06/03/2021		38,413	(238)	—	38,175
Plan 2021.IV.	09/24/2021		248,933	—	—	248,933
Total		313,596	511,518	(74,873)	(92,438)	657,803

The RSUs are measured based on the volume-weighted average price of the Galapagos share on Euronext Brussels over the 30-calendar day period preceding the reporting period and they are re-measured at each reporting date. We recognize the corresponding expense and liability over the vesting period.

The following table provides an overview of the outstanding RSUs per category of RSU holders on December 31, 2021, 2020 and 2019.

	December 31,
	2021		2020		2019
	(in number of RSUs)
Management board members		384,340		229,276		188,571
Personnel		273,463		84,320		24,576
Total outstanding RSUs		657,803		313,596		213,147

31. Related parties

Relationship and transactions with entities with control of, or significant influence over, Galapagos

Gilead

Gilead is exercising significant influence over Galapagos as from the equity subscription on August 23, 2019. As a result of the equity subscription we received a transparency notification from Gilead on August 28, 2019 confirming they held 22.04% of the then issued and outstanding shares of Galapagos.

By exercising warrant A on November 6, 2019 Gilead increased its ownership in Galapagos to 25.10% of the then outstanding shares. Gilead further increased its ownership to 25.84% at December 31, 2019. Gilead’s ownership then diluted to 25.54% at December 31, 2020 and to 25.49% at December 31, 2021, due to four capital increases resulting from the exercise of subscription rights under employee subscription right plans in the course of respectively 2020 and 2021.

The presumption of significant influence is also confirmed by the fact that Gilead has the right, for as long as it holds more than 20% of Galapagos’ share capital, to appoint two Investor Board Designees to Galapagos’ supervisory board, out of a total of eight.

F-59

The following balances are outstanding at the end of the reporting period in relation to Gilead:

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current trade receivables			€	50,000
Trade and other receivables	€	88,246		132,825	€	31,645
Trade and other payables	€	11,580	€	27,074	€	39,100

The trade and other receivables on December 31, 2021 contain €50.0 million of receivables relating to the in 2020 modified collaboration for filgotinib, for which we already received €110 million in the course of 2021. They also contain €12.6 million related to the transfer of the sponsorship and operational and financial responsibility of the ongoing DIVERSITY clinical trial from Gilead to us, €23.8 million of profit and cost sharing receivables relating to our collaboration for filgotinib and €1.9 million receivables relating to royalties. The outstanding liabilities mainly relate to the cross charges from Gilead relating for the development costs sharing of filgotinib in the fourth quarter of 2021 (€5.7 million) and €1.6 million related to purchases of finished goods.

During 2019 we already recognized in revenue the entire transaction price allocated to the license on GLPG1690 (€667 million). During 2021 we recognized in revenue €230.6 million (€229.6 million for the year ended December 31, 2020; €80.9 million for the year ended December 31, 2019) relating to the performance obligation for the drug discovery platform and a total of €235.7 million (€228.1 million for the year ended December 31, 2020; €41.4 million for the year ended December 31, 2019) representing the total impact on our revenues coming from the filgotinib performance obligation. The latter consists of upfront payments and milestone payments that were recognized in accordance with the percentage of completion of the underlying performance obligation.

Additionally, we recognized in 2021 royalty income for an amount of €3.8 million in relation to the commercialization of Jyseleca (€16.2 million for the year ended December 31, 2020).

Furthermore, we recognized in 2021 €18.1 million (€34.1 million for the year ended December 31, 2020; €17.7 million for the year ended December 31, 2019) of cost reimbursements from Gilead with respect to the development of GLPG1690 as a decrease of the related expenses (on the line research and development expenditure). An amount of €81.3 million (€101.0 million for the year ended December 31, 2020; €72.0 million for the year ended December 31, 2019) relating to cross charges from Gilead relating to filgotinib was recognized as expense on the line research and development expenditure.

Finally, we recognized in 2021 €59.7 million as a deduction of sales & marketing expenses (a deduction of €4.7 million for the year ended December 31, 2020; additional sales & marketing expenses of €8.2 million for the year ended December 31, 2019) mainly relating to our 50/50 cost share mechanism with Gilead for expenses incurred in preparation for the co-promotion activities for filgotinib. We recognized €7.0 million as a deduction of research and development expenditure (a deduction of €3.1 million for the year ended December 31, 2020) mainly relating to our 50/50 profit/(cost) share mechanism with Gilead for direct sales of Jyseleca in the shared territory.

We purchased raw materials, semi-finished products and finished products of Jyseleca from Gilead for an amount of €24.9 million for the year ended December 31, 2021 (€0.2 million for the year ended December 31, 2020 and nil for the year ended December 31, 2019).

As at December 31, 2021 we have two outstanding performance obligations under IFRS 15 towards Gilead, being the performance obligation related to our drug discovery platform and the performance obligation relating to filgotinib. This results in an outstanding deferred income balance of €1.8 billion for the drug discovery platform (including the warrant issuance liability relating to subsequent warrant B) and €605 million for the performance obligation relating to filgotinib.

A detailed explanation of our transactions with Gilead in 2019, 2020 and 2021 can be found in the section titled Agreements with major Galapagos NV shareholders. There are no other shareholders or other entities who, solely or jointly, control Galapagos or exercise significant influence over Galapagos.

F-60

Relationship and transactions with subsidiaries

Please see Note 32 for an overview of the consolidated companies of the group, which are all wholly-owned subsidiaries of Galapagos NV.

Relationship and transactions with key management personnel

Our key management personnel consists of the members of the management board and members of the supervisory board. All amounts mentioned in this section are based on expenses recognized in the financial statements for the relevant financial year.

Remuneration of key management personnel

On December 31, 2021, our management board had five members: Mr. Onno van de Stolpe, Mr. Bart Filius, Dr. Andre Hoekema, Dr. Walid Abi-Saab and Mr. Michele Manto. They provide their services to us on a full-time basis. On December 31, 2021, our supervisory board consisted of eight members: Dr. Raj Parekh, Mr. Howard Rowe, Ms. Katrine Bosley, Dr. Mary Kerr, Mr. Peter Guenter, Mr. Daniel O’Day, Dr. Linda Higgins and Dr. Elisabeth Svanberg.

Effective from January 1, 2020, Galapagos no longer grants any subscription rights to supervisory board members, taking into account the stricter rules of the Belgian Companies Code. Prior to 2020, supervisory board members were granted subscription rights and hence the table below for 2019 contains disclosures for supervisory board members.

Dr. Wigerinck left Galapagos and was a management board member until November 30, 2021 and hence the table below for 2021 contains disclosures on his remuneration until the aforementioned date and his severance package.

F-61

The remuneration package of the members of key management personnel comprises:

	Year ended December 31,
	2021		2020		2019
Remuneration of key management personnel:
Euro, in thousands (except for the number of subscription rights and RSUs)
Short-term benefits	€	4,264	€	3,102	€	14,129
Management board members as a group (1)
Gross salary		2,621		2,531		2,121
Employer social security on gross salary		—		—		61
Cash bonus (2)		1,172		433		1,230
Exceptional bonus		—		—		10,500
Employer social security on exceptional bonus		—		—		108
Other short-term benefits		471		138		109
Long-term benefits for management board members as a group (3)		—		—		1,874
Board fees and other short-term benefits for supervisory board members
Raj Parekh		220		220		90
Howard Rowe		120		125		55
Werner Cautreels (4)		—		—		15
Katrine Bosley (5)		65		115		45
Christine Mummery (4)		—		—		13
Mary Kerr		115		115		45
Peter Guenter (6)		115		115		30
Daniel O'Day (7)		—		—		—
Linda Higgins (7)		—		—		—
Elisabeth Svanberg (8)		115		78		—
Post-employment benefits (9)		399		392		323
Total benefits excluding subscription rights and RSUs	€	5,413	€	4,262	€	16,618
Severance package (10)		802		—		—
Number of subscription rights granted in the year
Management board members as a group (1) (12)		275,000		275,000		315,000
Onno van de Stolpe		85,000		85,000		100,000
Bart Filius		50,000		50,000		65,000
Andre Hoekema		30,000		30,000		50,000
Piet Wigerinck (11)		40,000		40,000		50,000
Walid Abi-Saab		40,000		40,000		50,000
Michele Manto (12)		30,000		30,000		40,000
Supervisory board members as a group		—		—		45,000
Raj Parekh		—		—		15,000
Howard Rowe		—		—		7,500
Katrine Bosley		—		—		7,500
Mary Kerr		—		—		7,500
Peter Guenter (6)		—		—		7,500
Daniel O'Day (7)		—		—		—
Linda Higgins (7)		—		—		—
Elisabeth Svanberg (8)		—		—		—
Total number of subscription rights granted in the year (12)		275,000		275,000		360,000
Total cost of subscription rights granted in the year under IFRS 2	€	5,629	€	22,921	€	14,236
Number of RSUs granted in the year (13)
Onno van de Stolpe		63,830		18,317		57,528
Bart Filius		62,730		12,600		39,846
Andre Hoekema		51,433		832		19,922
Piet Wigerinck (11)		835		12,080		33,077
Walid Abi-Saab		44,038		12,080		33,077
Michele Manto (12)		31,694		5,920		5,121
Total number of RSUs granted in the year		254,560		61,829		188,571

F-62

(1) Mr. Manto was appointed as Chief Commercial Officer and member of the management board, effective as of January 1, 2020. As a result the management board consisted of six persons in 2020. Dr. Wigerinck was a member of the management board until November 30, 2021. His remuneration and benefits are included in the overview for the financial year 2021.

(2) This aggregate number also includes the 2021 cash bonus of Dr. Wigerinck, who was a member of the management board until November 30, 2021.

(3) Only management board members are granted long-term benefits. Pursuant to the Senior Management Bonus Scheme, these consist of the deferred part of the bonus from 3 years ago. For the financial year 2020 and 2021 the deferred part of the bonus was not paid out.

(4) Supervisory board member's mandate expired on April 30, 2019.

(5) Ms. Bosley waived her equity related remuneration for the financial year 2021.

(6) Mr. Guenter's supervisory board member's mandate began on April 30, 2019.

(7) Supervisory board member's mandate began on October 22, 2019.

(8) Supervisory board member's mandate began on April 28, 2020.

(9) Only management board members are granted post-employment benefits.

(10) Dr. Wigerinck's severance package excludes his 2021 bonus paid per December 2021 and includes a payment of €35,416.66 for December 2021 pursuant to a non-competition obligation. During the financial year 2022 these monthly payments pursuant to a non-competition obligation will continue until 30 November 2022, except if Galapagos waives this non-competition obligation.

(11) Management board member until November 30, 2021.

(12) Mr. Manto was appointed as Chief Commercial Officer and member of the management board, effective as of January 1, 2020. Hence Mr. Manto’s subscription rights grant for 2019 (40,000 subscription rights) is not included in the total number of subscription rights granted in the financial year 2019.

(13) This is the sum of the RSUs awarded during the respective financial year, excluding the RSUs representing the deferred portion of the bonus for 2019 in financial year 2019, for 2020 in financial year 2020 and for 2021 in financial year 2021 (each time to be granted in the following financial year). Only management board members were awarded RSUs.

OTHER

No loans, quasi-loans or other guarantees were given by Galapagos NV or any of its subsidiaries to members of the supervisory board and of the management board. We have not entered into transactions with our key management personnel, other than as described above with respect to remuneration arrangements relating to the exercise or termination of their mandates as members of the management board and the supervisory board.

32. Consolidated companies as of December 31, 2021

		Year ended December 31,
		2021		2020	2019
Name of the subsidiary	Country	% voting right Galapagos NV (directly or indirectly through subsidiaries)	Change in % voting right previous period (2021 vs 2020)	% voting right Galapagos NV (directly or indirectly through subsidiaries)	% voting right Galapagos NV (directly or indirectly through subsidiaries)
BioFocus DPI AG (liquidated)	Switzerland	0%		0%	100%
Galapagos Biopharma Belgium BV	Belgium	100%		100%	100%
Galapagos Biopharma Netherlands B.V.	The Netherlands	100%		100%	100%
Galapagos Biopharma Spain S.L.U.	Spain	100%		100%	100%
Galapagos Biopharma Italy S.r.l.	Italy	100%		100%	100%
Galapagos Biopharma Germany GmbH	Germany	100%		100%	100%
Galapagos Biopharma Sweden AB	Sweden	100%	100%	0%	0%
Galapagos Biopharma Norway AS	Norway	100%	100%	0%	0%
Galapagos Biopharma Finland Oy	Finland	100%	100%	0%	0%
Galapagos Biopharma Denmark ApS	Denmark	100%	100%	0%	0%
Galapagos Biopharma Austria GmbH	Austria	100%	100%	0%	0%
Galapagos Biopharma Ireland Ltd	Ireland	100%	100%	0%	0%
Galapagos B.V.	The Netherlands	100%		100%	100%
Galapagos Biotech Ltd (formerly Inpharmatica Ltd.)	United Kingdom	100%		100%	100%
Galapagos GmbH	Switzerland	100%		100%	100%
Galapagos, Inc. (formerly Biofocus, Inc.)	United States	100%		100%	100%
Galapagos NV	Belgium	Parent company		Parent company	Parent company
Galapagos Real Estate Belgium BV (former Galapagos Real Estate 1 BV)	Belgium	100%		100%	100%
Galapagos Real Estate 2 BV	Belgium	0%		0%	100%
Galapagos Real Estate Netherlands B.V.	The Netherlands	100%		100%	100%
Galapagos SASU	France	100%		100%	100%
Fidelta d.o.o.	Croatia	0%	(100%)	100%	100%
Xenometrix, Inc. in liquidation	United States	100%		100%	100%

F-63

On January 4, 2021 we closed the sale of our fee-for-service business Fidelta. Selvita S.A. acquired 100% of the outstanding shares in Fidelta.

In 2021 the following new entities were incorporated: Galapagos Biopharma Sweden AB (Stockholm, Sweden), Galapagos Biopharma Norway AS (Oslo, Norway), Galapagos Biopharma Finland Oy (Helsinki, Finland), Galapagos Biopharma Denmark ApS (Kopenhagen, Denmark), Galapagos Biopharma Austria GmbH (Vienna, Austria) and Galapagos Biopharma Ireland Ltd (Dublin, Ireland).

There are no significant restrictions on the group’s ability to access or use assets and settle liabilities of one of the group’s subsidiaries.

33. Financial risk management

Financial risk factors

Our financial risks are managed centrally. Our finance department coordinates the access to national and international financial markets and considers and manages continuously the financial risks concerning our activities. These relate to the following financial markets risks: credit risk, liquidity risk, currency risk and interest rate risk. Our interest rate risk is limited because we have nearly no financial debt. In case of decreasing interest rates we will face a reinvestment risk on our strong cash and cash equivalents and current financial investments balance. We do not buy or trade financial instruments for speculative purposes.

Categories of financial assets and liabilities:

	December 31,
	2021		2020		2019(*)
	(Euro, in thousands)
Financial assets held at fair value through profit or loss
Equity instruments	€	—	€	8,951	€	11,275
Current financial investments		1,317,460		1,571,858		3,919,216
Financial assets at amortized cost
Current financial investments		1,152,349		1,454,420		—
Cash and cash equivalents		2,233,368		2,135,187		1,861,616
Restricted cash (current and non-current)		1,425		1,482		1,418
Other non-current assets		1,048		907		1,399
Trade receivables		91,786		184,632		39,603
Total financial assets	€	4,797,436	€	5,357,438	€	5,834,526
Financial liabilities held at fair value through profit or loss
Current financial instruments	€	204	€	3,164	€	6,198
Financial liabilities at amortized cost
Trade liabilities		84,519		134,905		116,749
Lease liabilities		26,859		29,436		25,384
Total financial liabilities	€	111,582	€	167,505	€	148,331

(*) The historical consolidated financial information for 2019 presented in this disclosure note has been adjusted mainly to correct for the amounts of other receivables and other payables that are outside the scope of IFRS 9.

The carrying amounts of trade and other payables and trade and other receivables are considered to be the same as their fair values, due to their short-term nature.

F-64

Financial assets held at fair value through profit or loss

Financial assets held at fair value through profit or loss consisted of equity instruments of listed/non-listed companies and current financial investments.

We have no restrictions on the sale of these equity instruments and the assets are not pledged under any of our liabilities. These instruments are classified as financial assets held at fair value adjustment through profit or loss. The equity investments in listed companies qualified for level 1 fair value measurement based upon the closing price of such securities on Euronext at each reporting date.

The market price of those shares might face fluctuations and might be affected by a variety of factors, such as the global economic situation, the business development of competitors, sector mergers and acquisitions; it is difficult to mitigate this risk.

The fair value of the equity instrument in the non-listed company has been determined mainly by reference to the initial transaction price (classified as level 3 in the fair value hierarchy).

Current financial investments include money market funds in EUR and USD, which all classify for level 1 fair value measurement.

Liquidity risk

Current financial investments and cash and cash equivalents amounted to €4,703.2 million on December 31, 2021. Management forecasts our liquidity requirements to ensure that we have sufficient cash to meet operational needs. We have no credit lines. Such forecasting is based on realistic assumptions with regards to milestone and upfront payments to be received, taking into account our past track record, including the assumption that not all new projects that are being planned will be realized.

All our and cash and cash equivalents have only an insignificant liquidity risk as they are all convertible upon a maximum three month notice period and without incurring a significant penalty in normal market circumstances.

Credit risk

The term “credit risk” refers to the risk that counterparty will default on its contractual obligations resulting in financial loss for us.

The trade receivables consist of a receivables on our collaboration partner Gilead, creditworthy pharmaceutical wholesalers and hospitals in Europe. To limit the risk of financial losses, we have developed a policy of only dealing with creditworthy counterparties.

We grant credit to our clients in the framework of our normal business activities. Usually, we require no pledge or other collateral to cover the amounts due. Management continuously evaluates the client portfolio for creditworthiness. All our receivables are considered collectable.

We applied the IFRS 9 simplified approach to measuring expected credit losses, which uses a lifetime expected loss allowance for all receivables. To measure the expected credit losses, receivables have been grouped based on credit risk characteristics and the days past due. The provision for expected credit losses was not significant given that there have been no credit losses over the last three years and the high quality nature of our customers.

F-65

Aging balance of receivables that are due, but that are still considered collectable:

	December 31,
	2021		2020		2019
	(Euro, in thousands)
60 - 90 days	€	141	€	—	€	87
90 - 120 days		92		—		—
more than 120 days	€	113	€	—	€	—

Our cash and cash equivalents are invested primarily in current, notice and term accounts. For banks and financial institutions, only independently rated parties with a minimum rating of ‘A’ are accepted at the beginning of the term. Our current financial investments are also kept within different financial institutions and include term deposits, money market funds and treasury bills with an AAA rating. The money market funds are invested in a well-diversified portfolio of highly rated assets.

Interest rate risk

The only variable interest-bearing financial instruments are cash and cash equivalents and current financial investments. Our interest rate income is impacted by the negative interest rate environment in EUR, and the low interest rate environment in USD.

Changes in interest rates may cause variations in interest income and expenses resulting from short term interest-bearing assets. Management does not expect the short term interest rates to decrease significantly in the immediate foreseeable future, which limits the interest exposure on our cash and cash equivalents and current financial investments.

Effect of interest rate fluctuation

A 100 basis point increase in interest rates at balance sheet date would have increased profit or loss, and equity, by approximately €47.0 million (2020: €51.7 million; 2019: €57.8 million); a 100 basis point decrease in interest rates would have decreased profit or loss, and equity, by approximately €47.0 million (2020: €51.7 million; 2019: €57.8 million).

Foreign exchange risk

We are exposed to foreign exchange risk arising from various currency exposures. Our principal functional currency is euro, but we receive payments from our main collaboration partner Gilead in U.S. dollars and acquire some consumables and materials in U.S. dollars, Swiss Francs and GB Pounds.

To limit this risk, we attempt to align incoming and outgoing cash flows in currencies other than EUR. In addition, contracts closed by our different entities are mainly in the functional currencies of that entity, except for the alliance agreement signed with Gilead for which payments are denominated in U.S. dollars.

The exchange rate risk in case of a 10% change in the exchange rate amounts to:

	December 31,
	2021		2020		2019
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(83,996)	€	(116,690)	€	(133,373)
Increase in Euros - GB Pounds		1,093		303		113
Increase in Euros - CH Francs		233		2,013		538
Increase in Euros - HR Kunas		—		—		650
Increase in U.S. Dollars - GB Pounds	€	—	€	—	€	(894)

The exchange rate risk on the U.S. dollar is primarily related to our cash and cash equivalents and current financial investments held in U.S dollars.

F-66

Capital risk factors

We manage our capital to safeguard that we will be able to continue as a going concern. At the same time, we want to ensure the return to our shareholders through the results from our research and development activities.

Our capital structure consists of current financial investments, cash and cash equivalents, financial debt (we only have leasing debts as of December 31, 2021), and equity attributed to the holders of our equity instruments, such as capital, reserves and results carried forward, as mentioned in the consolidated statement of changes in equity.

We manage our capital structure and make the necessary adjustments in the light of changes of economic circumstances, the risk characteristics of underlying assets and the projected cash needs of the current research and development activities.

The adequacy of the capital structure will depend on many factors, including scientific progress in the research and development programs, the magnitude of those programs, the commitments to existing and new clinical CROs, the ability to establish new alliance or collaboration agreements, the capital expenditures, the new commercial activities, market developments and any future acquisition.

Neither Galapagos NV nor any of its subsidiaries are subject to any externally imposed capital requirements, other than those imposed by generally applicable company law requirements.

34. Auditor’s remuneration

The statutory auditor’s fees for carrying out its mandate at group level amounted to €860.3 thousand in 2021 (2020: €1,202.8 thousand). Audit-related fees, which generally the auditor provides, amounted to €101.1 thousand in 2021 (2020: €214.4 thousand). Other fees related to non-audit services executed by the statutory auditor amounted to €0 in 2021 (2020: €47.7 thousand). Other fees related to non-audit services executed by persons related to the statutory auditor amounted to €587.7 thousand in 2021 and related to advisory services in relation to IT and quality management (2020: €890.7 thousand). The audit committee and the supervisory board are of the opinion that these non-audit services do not affect the independence of the statutory auditor in the performance of his audit. The abovementioned additional fees were fully approved by the audit committee in accordance with article 3:64 of the Belgian Companies Code.

35. Events after balance sheet date

On January 13, 2022, the supervisory board approved Subscription Right Plan 2022 (A) within the framework of the authorized capital. Under this subscription right plan 30,000 subscription rights were offerend and accepted by the beneficiary of the plan. The subscription rights have an exercise term of eight years as of the date of the offer and have an exercise price of €46.18 (the closing price of the share on Euronext Amsterdam and Brussels on the day preceding the date of the offer). The subscription rights are not transferable. Subscription rights under this plan vest in instalments: with 25% of each grant being exercisable as of January 1, 2023, 25% as of January 1, 2024 and 50% (the remainder) as of January 1, 2025.

On January 26, 2022, the supervisory board approved Subscription Right Plan 2022 (B) for the benefit of a new member of the personnel of Galapagos within the framework of the authorized capital. Under this subscription right plan 1,000,000 subscription rights were created, subject to acceptance, and offered to the beneficiary of the plan. The subscription rights have an exercise term of eight years as of the date of the offer and have an exercise price of €50. The subscription rights can in principle not be exercised prior to January 1, 2026. 

On March 18, 2022, 95,500 subscription rights were exercised (with an average exercise price of €22.61 per subscription right), of which 50,000 subscription rights were exercised by our CEO and 10,000 subscription rights by one other member of our management board. This resulted in a share capital increase (including issuance premium) of €2,159,600.00 and the issuance of 95,500 new ordinary shares. The closing price of our share on March 18, 2022, was €57.38.

F-67

EXHIBIT INDEX

		Incorporated by Reference
		Schedule/			File Date
Exhibit	Description	Form	File Number	Exhibit	(mm/dd/yyyy)
1.1#	Articles of Association (English translation), as amended
2.1	Form of Deposit Agreement	Form F-1/A	333-203435	4.1	04/30/2015
2.2	Form of American Depositary Receipt	424(b)3	333-203584	A	10/15/2018
2.3#	Description of Securities
4.1	Lease dated June 30, 1999 between the registrant and Innotech N.V., as amended (English translation)	Form F-1	333-203435	10.1	04/15/2015
4.2†	Warrant Plans (English translation)	Form F-1/A	333-203435	10.3	05/11/2015
4.6##	Sale & Purchase Agreement dated March 13, 2014 between the registrant and Charles River Laboratories Holding Limited, as amended	Form F-1	333-203435	10.7	04/15/2015
4.7†	Warrant Plan 2015 (B) (English translation)	Form S-8	333-208697	99.1	12/22/2015
4.8**	License and Collaboration Agreement dated December 16, 2015 by and between the registrant and Gilead Biopharmaceutics Ireland Unlimited Company	Form 6-K	001-37384	10.1	01/19/2016
4.10†	Warrant Plan 2016 (English translation)	Form S-8	333-211834	99.1	06/03/2016
4.11†	Warrant Plan 2016 (B) (English translation)	Form S-8	333-215783	99.1	01/27/2017
4.12†	Warrants Plans 2015 RMV and 2016 RMV (English translation)	Form 20-F	001-37384	4.12	03/23/2017
4.13	Lease Addendum dated April 28, 2016 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.13	03/23/2017
4.14†	Warrant Plan 2017 (English translation)	Form S-8	333-218160	99.1	05/22/2017
4.15†	Warrant Plan 2017 RMV (English translation)	Form 20-F	001-37384	4.15	03/23/2018
4.16	Lease Addendum dated December 12, 2016 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.16	03/23/2018
4.17	Lease Addendum dated July 3, 2017 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.17	03/23/2018
4.18	Lease Addendum dated June 6, 2018 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.18	03/29/2019
4.19	Lease Addendum dated June 20, 2018 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.19	03/29/2019
4.20†	Warrant Plan 2018 (English translation)	Form S-8	333-225263	99.1	05/29/2018
4.21†	Warrant Plan 2018 RMV (English translation)	Form 20-F	001-37384	4.21	03/29/2019
4.22†	Warrant Plan 2019 (English translation)	Form S-8	333-231765	99.1	05/24/2019
4.23†	Warrant Plan 2019 RMV (English translation)	Form S-8	333-231765	99.2	05/24/2019

177

		Incorporated by Reference
		Schedule/			File Date
Exhibit	Description	Form	File Number	Exhibit	(mm/dd/yyyy)
4.24##	Option, License and Collaboration Agreement dated as of July 14, 2019 by and between the registrant and Gilead Sciences, Inc.	Form 6-K	001-37384	99.2	08/29/2019
4.25##	Amended and Restated License and Collaboration Agreement dated as of August 23, 2019 by and between the registrant and Gilead Biopharmaceutics Ireland UC	Form 6-K	001-37384	99.3	08/29/2019
4.26	Subscription Agreement relating to ordinary shares in the registrant dated as of July 14, 2019 by and between the registrant and Gilead Therapeutics A1 Unlimited Company	Form 6-K	001-37384	99.4	08/29/2019
4.27†	RSU Discretionary Plan 2019	Form 20-F	001-37384	4.27	03/27/2020
4.28†	RSU Retention Plan 2019	Form 20-F	001-37384	4.28	03/27/2020
4.29†	RSU Transaction Bonus Plan 2019	Form 20-F	001-37384	4.29	03/27/2020
4.30	Lease Addendum dated July 1, 2019 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.30	03/27/2020
4.31	Lease Addendum dated October 17, 2019 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.31	03/27/2020
4.32	Deed of purchase between the registrant and NMBS (English translation)	Form 20-F	001-37384	4.32	03/27/2020
4.33†	Subscription Right Plan 2020 (English translation)	Form S-8	333-249416	99.1	10/09/2020
4.34†	Subscription Right Plan 2020 RMV (English translation)	Form 20-F	001-37384	4.34	03/25/2021
4.35†	Plan 2020.I – RSU Long-Term Incentive Plan 2020	Form 20-F	001-37384	4.35	03/25/2021
4.36†	Plan 2020.II – RSU Retention Plan 2020	Form 20-F	001-37384	4.36	03/25/2021
4.37	Lease Addendum dated March 9, 2020 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.37	03/25/2021
4.38	Lease Addendum dated July 28, 2020 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.38	03/25/2021
4.39	Lease Addendum dated December 18, 2019 between the registrant and Intervest Offices & Warehouses NV (English translation)	Form 20-F	001-37384	4.39	03/25/2021
4.40†	Subscription Right Plan 2021 BE (English translation)	Form S-8	333-260500	99.2	10/26/2021
4.41†	Subscription Right Plan 2021 RMV (English translation)	Form S-8	333-260500	99.3	10/26/2021
4.42†	Subscription Right Plan 2021 ROW (English translation)	Form S-8	333-260500	99.1	10/26/2021
4.43#†	Plan 2021.I – RSU Long-Term Incentive Plan 2021

178

		Incorporated by Reference
		Schedule/			File Date
Exhibit	Description	Form	File Number	Exhibit	(mm/dd/yyyy)
4.44#†	Plan 2021.II – RSU Retention Plan 2021
4.45#†	Plan 2021.III – RSU GSI Replacement Plan 2021
4.46#†	Plan 2021.IV – RSU Retention Plan 2021
8.1#	List of subsidiaries of the registrant
12.1#	Certification by the Principal Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
12.2#	Certification by the Principal Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
13.1*	Certification by the Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
13.2*	Certification by the Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
15.1#	Consent of Deloitte Bedrijfsrevisoren
101.INS#	Inline XBRL Instance Document
101.SCH#	Inline XBRL Taxonomy Extension Schema Document
101. CAL#	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101. DEF#	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB#	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE#	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

#     Filed herewith.

*     Furnished herewith.

†     Indicates a management contract or any compensatory plan, contract or arrangement.

##   Certain exhibits and schedules to these agreements were omitted from the registration statement pursuant to Item 601(b)(2) of Regulation S-K. The registrant will furnish copies of any of the exhibits and schedules to the U.S. Securities and Exchange Commission upon request.

**   Confidential treatment status has been granted as to certain portions thereto, which portions are omitted and filed separately with the U.S. Securities and Exchange Commission.

179

SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

GALAPAGOS NV
/s/ Onno van de Stolpe
By:	Onno van de Stolpe
Title:	Chief Executive Officer (Principal Executive Officer)
Date: March 24, 2022

180

EX-1.1

Exhibit 1.1

Free translation from Dutch For information purposes only

GALAPAGOS

Limited Liability Company

With office at Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium

Judicial district of Mechelen (Belgium)

Registered with the Register of Legal Entities under number 0466.460.429

www.glpg.com

*********************

Coordination of the Articles of Association
per 18 March 2022

*********************

This paragraph is an abbreviation from the Dutch version] The articles of association were modified at several occasions, and most recently pursuant to a deed enacted by notary public Matthieu Derynck, in Brussels, on 18 March 2022, filed for publication in the annexes to the Belgian State Gazette.

Incorporated pursuant to a deed enacted by notary public Aloïs Van den Bossche, in Vorselaar, on 30 June 1999, published in the annexes to the Belgian State Gazette under number 990717-412.

[This paragraph is an abbreviation from the Dutch version] The articles of association were modified at several occasions, and most recently pursuant to a deed enacted by notary public Matthieu Derynck, in Brussels, on 18 March 2022, filed for publication in the annexes to the Belgian State Gazette.

This document is an English translation of a document prepared in Dutch. It is made for purposes of convenience. In preparing this translation, an attempt has been made to translate as literally as possible without jeopardizing the overall continuity of the text. Inevitably, however, differences may occur in translation and if they do, the Dutch text will govern by law. In this translation, Belgian legal concepts are expressed in English terms and not in their original Dutch terms. The concepts concerned may not be identical to concepts described by the terms as such terms may be understood under the laws of other jurisdictions. The history of modification of the articles of association, as set forth on this first page, is an abbreviation from the Dutch text and indicates only the latest modification.

Galapagos NV | Articles of Association | 17 March 2020 Page 1 of 18

Free translation from Dutch For information purposes only

Title I – Name –Office – Object – Duration

1 Form and Name

The company has the form of a limited liability company (“naamloze vennootschap”/”société anonyme”) and has the capacity of a listed company within the meaning of the Code of Companies and Associations.

The company bears the name “GALAPAGOS”. This name should always be preceded or followed by the words “naamloze vennootschap” or the abbreviation “NV”, or in French “société anonyme” or the abbreviation “SA”, in all deeds, invoices, announcements, publications, letters, orders and other documents issued by the company.

2 Office

The company’s office shall be located in the Flemish Region. The supervisory board can relocate the office to any other place in the Flemish Region and the Brussels Region without a modification of the articles of association or a decision of the shareholders’ meeting of the company being required. It caters for the publication of each change of the office of the company in the Annexes to the Belgian State Gazette.

The management board is also empowered to incorporate branch offices, corporate seats and subsidiaries in Belgium and abroad.

3 Object

The company’s object consists of:

(a) the research and development of health products for human beings and animals, pharmaceutical products and other products relating thereto;

(b) for its own account or for the account of third parties, the performance of research in the field of or in connection with pharmaceutical, medical, biological and industrial technology, genetics and human and animal life in general;

(c) the exploitation of biological, chemical or other products, processes and technologies in the life sciences sector in general, and more specifically in the pharmaceutical, medical, diagnostic, and chemical sector, including activities relating to the production, marketing and commercial exploitation of such products, processes and technologies;

(d) the acquisition, sale and licensing of patents, trademarks, industrial and intellectual property, whether or not secret, and licenses;

(e) holding direct or indirect shareholdings in other companies having an object directly or indirectly related to research, development, industrial or commercial activities, focused mainly but not necessarily exclusively on the pharmaceutical industry.

For such object the company may, in Belgium and abroad, acquire or lease any license, movable or immovable property necessary or useful for its commercial or industrial object, operate, sell or lease same, build factories, establish subsidiaries and branches, and establish premises. It may engage in all operations with banks, post cheque, invest capital, contract or grant loans and credit facilities, whether or not mortgaged. The company may, by means of contribution, participation, loans, credit facility, subscription of shares, acquisition of shares and other commitments, participate in other companies, associations or enterprises, both existing as to be incorporated, and whether or not having an object similar to the object of the company. The company may merge with other companies or associations.

Galapagos NV | Articles of Association | 17 March 2020 Page 2 of 18

Free translation from Dutch For information purposes only

The company may incorporate subsidiaries both under Belgian as under foreign law.

The company may acquire or establish any property that is necessary or useful for its operations or its corporate object.

4 Duration

The company is incorporated for an unlimited duration.

Except for dissolution by court, the company can only be dissolved by the extraordinary shareholders’ meeting in accordance with the provisions of the Code of Companies and Associations concerning the winding-up of companies.

Title II – Capital

5 Subscribed Capital

The subscribed capital amounts to EUR 355,098,660.11. It is represented by 65,648,221 shares without nominal value.

Each share represents an equal part of the capital of the company.

6 Amendment of the Subscribed Capital

The shareholders’ meeting, deliberating in accordance with the provisions applicable to a modification of the articles of association, may increase or reduce the capital. The issuance price and the conditions of the issue of new shares are determined by the shareholders’ meeting upon a proposal by the supervisory board.

The shares that are subscribed in cash, are to be offered first to the shareholders, in proportion to the part of the capital that is represented by their shares during a period of fifteen days as of the day the subscription is opened.

The shareholders’ meeting determines the subscription price and the manner in which the preferential subscription right may be exercised.

The shareholders’ meeting or, as the case may be, the supervisory board in the framework of the authorized capital, may decide to increase the capital for the benefit of the employees, subject to the provisions of the Code of Companies and Associations.

Subject to the relevant provisions set forth by law, the preferential subscription right may, in the interest of the company, be restricted or cancelled by the shareholders’ meeting in accordance with the provisions of the Code of Companies and Associations.

In the event of a reduction of the capital, the shareholders who find themselves in equal circumstances are to be treated equally, and the applicable provisions set forth by law are to be respected.

7 Call for Paying Up

The management board decides at its discretion on the calling for paying up on shares. The commitment to pay up on a share is unconditional and indivisible.

In the event that shares that are not fully paid up belong in joint ownership to several persons, each of them is liable for the paying up of the full amount of the payments that are due and called for.

In case a shareholder has not made the paying up on his shares that is called for within the period of time set by the management board, the exercise of the voting rights attached to such shares are suspended by operation of

Galapagos NV | Articles of Association | 17 March 2020 Page 3 of 18

Free translation from Dutch For information purposes only

law as long as such paying up is not made. Furthermore, the shareholder shall, by operation of law, bear an interest equal to the legal interest increased by two percent as of the due date on the amount of funds called for and not paid up.

In the event the shareholder does not act upon a notice sent by the management board by registered letter upon expiry of the period of time set by the management board, the latter may have the relevant shares sold in the most appropriate manner, without prejudice to the right of the company to claim from the shareholder the funds not paid up as well as compensation for damages.

The proceeds of such sale, up to an amount equal to the sum of the called up funds, the interests and the incurred costs, will belong to the company. The exceeding proceeds, if any, will be delivered to the defaulting shareholder, provided that he is not a debtor of the company for any other reason. If the proceeds of the sale are not sufficient to cover the obligations of the defaulting shareholder, the latter will owe the company for the difference.

The shareholder may not pay up his shares without the prior approval of the management board.

8 Notification of Important Interests

For the application of the articles 6 through 17 of the Law of 2 May 2007 relating to the disclosure of important interests, the applicable quota are established at five percent and multiples of five percent.

9 Nature of the Shares

The shares are registered shares until they are fully paid up. The fully paid up shares are registered shares or dematerialized shares, according to the preference of the shareholder. The company may issue dematerialized shares, either by a capital increase or by the conversion of existing registered shares into dematerialized shares. Each shareholder may at all times ask the conversion of his shares, by written request and at his own cost, into registered shares or into dematerialized shares.

10 Exercise of Rights Attached to the Shares

Vis-à-vis the company, the shares are indivisible. If a share belongs to different persons or if the rights attached to a share are divided over different persons, or if different persons hold the rights in rem to the shares, the company may suspend the exercise of the rights attached thereto until one single person has been designated as shareholder vis-à-vis the company and notification thereof has been given to the company. All convocations, notifications and other announcements by the company to the different persons entitled to one share are made validly and exclusively to the designated common representative.

11 Acquisition and Disposal of Own Shares by the Company

The company may resolve to acquire the company’s own shares or to dispose thereof in accordance with the provisions of the Code of Companies and Associations.

12 Bonds and Subscription Rights

The supervisory board is entitled to issue bonds at the conditions it deems appropriate, whether or not such bonds are guaranteed by a mortgage or otherwise.

The shareholders’ meeting may resolve to issue convertible bonds or subscription rights in accordance with the provisions of the Code of Companies and Associations.

Galapagos NV | Articles of Association | 17 March 2020 Page 4 of 18

Free translation from Dutch For information purposes only

Title III – Administration and supervision

13 Two-tier board structure

The company is managed by a supervisory board of minimum five and maximum nine members, who need not be a shareholder, and a management board of at least three members. One cannot be a member of both boards. At least three of the appointed members of the supervisory board shall meet the criteria stated in the applicable law with respect to independent directors.

Each board forms a college in accordance with the applicable rules on deliberating meetings.

The members of the supervisory board are appointed by the shareholders’ meeting. The duration of their mandate may not exceed four years. Members of the supervisory board whose mandate has come to an end may be reappointed. The members of the management board are appointed and dismissed by the supervisory board.

If a membership is entrusted to a legal entity, such legal entity shall appoint a physical person as its permanent representative in accordance with the applicable legal provisions, subject to acceptance of this person by the other members of the respective board of the company.

14 Supervisory board

14.1 Powers of the supervisory board

The supervisory board is responsible for the general policy and strategy of the company and has the power to perform all acts that are exclusively reserved to it by the applicable law. The supervisory board drafts all reports and proposals in accordance with books 12 and 14 of the Code of Companies and Associations.

It supervises the management board and decides, after the adoption of the annual accounts, by separate vote on the discharge to be granted to the members of the management board.

Within the limits of its authority, the supervisory board may confer special powers on agents of its choice.

14.2 Casual Vacancy

In the event of a casual vacancy in the supervisory board, the remaining members of the supervisory board have the right to temporarily fill such vacancy until the shareholders’ meeting appoints a new member of the supervisory board. To this end, the appointment shall be put on the agenda of the first following shareholders’ meeting. Each member of the supervisory board appointed this way by the shareholders’ meeting shall complete the mandate of the member of the supervisory board he replaces, unless the shareholders’ meeting decides otherwise.

14.3 Chair

The supervisory board elects a chairman from among its members and may also elect one or more vice-chairmen.

14.4 Meetings of the supervisory board

The supervisory board is convened by its chairman, or, in case of impediment of the latter, by a vice-chairman, or by two members of the supervisory board, each time the interests of the company so require.

The notices of the meetings of the supervisory board are, except in the event of emergency (which is to be motivated in the minutes), provided by telecopy, by electronic mail or by phone at least four calendar days prior to the meeting. The meeting is held at the place mentioned in the convening notice.

Galapagos NV | Articles of Association | 17 March 2020 Page 5 of 18

Free translation from Dutch For information purposes only

If the chairman is unable to attend, the supervisory board is chaired by the vice-chairman, or, in the absence of the latter, by the oldest member present.

The validity of the convening notice cannot be challenged if all members of the supervisory board are present or validly represented.

14.5 Deliberation

The supervisory board may validly deliberate only if at least half of its members are present or represented. If this quorum is not satisfied, a new meeting may be convened with the same agenda, which will be able to validly deliberate and resolve provided that at least two members are present or represented. Members of the supervisory board who, in accordance with applicable law, may not participate in the deliberation and the vote are not included to determine whether the quorum has been reached.

Supervisory board members can be present at the meeting by electronic communication means, such as, among others, phone- or videoconference, provided that all participants to the meeting can communicate directly with all other participants. In such case, the meeting is deemed to take place at the office of the company, unless agreed upon differently by the supervisory board. The same applies to meetings of the supervisory board to be held in the presence of a notary public, it being understood, however, that in such case at least one member of the supervisory board or the meeting’s secretary shall physically attend the meeting in the presence of the notary public and that the meeting is deemed to take place at the notary public’s office, unless agreed upon differently by the supervisory board. The minutes of the meeting shall mention the manner in which the members of the supervisory board were present.

With respect to items that were not mentioned in the agenda, the supervisory board can deliberate validly only with the consent of the entire supervisory board and insofar all members are present in persona. Such consent is deemed to be given if no objection is made according to the minutes.

Each member of the supervisory board can give a power of attorney to another member to represent him at a meeting of the supervisory board and to vote in his place, by normal letter, by e-mail or by any other means of communication replicating a printed document.

The resolutions of the supervisory board are taken by simple majority of the votes cast. Blank and invalid votes are not included in the votes cast, neither in the numerator nor in the denominator. In case of a tie, the chairman has the casting vote.

Supervisory board resolutions may be approved by unanimous written consent of all members, unless otherwise provided in these articles of association and save for decisions requiring a notarial deed.

The members of the supervisory board need to respect the provisions and formalities on conflicts of interest as well as on related party transactions set forth in applicable law.

14.6 Minutes

The deliberations of the supervisory board are enacted in minutes that are signed by the chairman and by the members of the supervisory board who wish to do so. The powers of attorney are attached to the minutes. If a member expressly refuses to sign the minutes, this shall be reflected in the minutes with the motivation of such refusal.

The copies or extracts, to be submitted in legal proceedings or otherwise, shall be signed by the chairman of the supervisory board or by two members of the supervisory board.

Galapagos NV | Articles of Association | 17 March 2020 Page 6 of 18

Free translation from Dutch For information purposes only

14.7 Remuneration of the members of the supervisory board

The shareholders’ meeting may grant remuneration to the members of the supervisory board. The supervisory board is empowered to distribute amongst its members the global remuneration granted by the shareholders’ meeting.

15 Management board

15.1 Powers of the management board

The management board has the power to carry out all acts necessary or useful to the realisation of the company’s object with the exception of those reserved to the supervisory board in accordance with article 14.1 of these articles of association and of those reserved to the shareholders’ meeting by applicable law.

Within the limits of its authority, the management board may confer special powers on agents of its choice.

15.2 Chair

The supervisory board shall appoint the chairman of the management board. The management board may also elect one or more vice-chairmen.

15.3 Meetings and minutes of the management board

The management board is convened by its chairman, or, in case of impediment of the latter, by a vice-chairman, or by two members of the management board, each time the interests of the company so require.

The deliberations of the management board are recorded in minutes, signed by the members who took part in the deliberation.

The copies and extracts of the minutes of the meetings of the management board are certified and signed by one or more members with representation powers.

Management board resolutions may be approved by unanimous written consent of all members, unless otherwise provided in these articles of association and save for decisions requiring a notarial deed.

The management board may make any further arrangements for its effective functioning.

15.4 Remuneration of the members of the management board

The supervisory board determines the remuneration of the members of the management board.

16 Delegation of day-to-day management

The management board is authorized to delegate the day-to-management of the company as described in the Code of Companies and Associations and the representation powers pertaining to such management to one or more persons. The management board appoints and revokes the person(s) entrusted with such management and determines the remuneration linked to this mandate.

If several persons are appointed, they form a board and the management board determines the operating procedures of the persons entrusted with the day-to-day management of the company.

Limitations of the representation powers of the persons entrusted with the day-to-day management, other than those relating to the joint signatory authority, are not enforceable vis-à-vis third parties, even if they are published.

Within the limits of the powers delegated to them, the persons entrusted with the day-to-day management may grant specific and determined powers to one or more persons of their choice.

Galapagos NV | Articles of Association | 17 March 2020 Page 7 of 18

Free translation from Dutch For information purposes only

17 Representation

17.1 Supervisory board

The supervisory board represents the company vis-à-vis third parties in all matters for which it has exclusive competence in accordance with the applicable law. With regard to the powers of the supervisory board, the company is also represented by two members of the supervisory board acting jointly, provided that these members cannot be members who factually represent shareholders holding more than 20 percent of the company’s capital.

17.2 Management board

The management board represents the company vis-à-vis third parties in all matters, with the exception of those matters for which, in accordance with the applicable law, the supervisory board has exclusive competence. With regard to the powers of the management board, the company is also represented by one member of the management board acting alone.

17.3 Delegated authorities

Within the limits of the day-to-day management, the company is furthermore validly represented in dealings with third parties and in legal proceedings by the person(s) entrusted with the day-to-day management of the company acting jointly or individually in accordance with the delegation by the management board.

Moreover, the company is validly bound by special attorneys-in-fact within the limits of the powers granted to them.

When the company is appointed as director, member of the supervisory board, member of the management board or liquidator of another company, it will appoint a physical person as its permanent representative who is entrusted with the execution of the mandate for and on behalf of the company.

18 Committees within the supervisory board

The supervisory board establishes an audit committee and a remuneration and nomination committee.

The supervisory board may create amongst its members, and under its responsibility, one or more advisory committees, of which it determines the composition and the missions.

19 Control

To the extent required by law, the control of the financial situation, of the annual accounts and of the regularity from point of view of the Code of Companies and Associations and the articles of association of the activities to be reflected in the annual accounts, are assigned to one or more statutory auditors (“commissarissen”) who are appointed by the shareholders’ meeting amongst the Company Auditors entered in the public register of the statutory auditors or among the registered audit firms  and who carry the title of statutory auditor (“commissaris”).

The shareholders’ meeting determines the number of statutory auditors and fixes their remuneration.

The statutory auditors are appointed by the shareholders’ meeting, in accordance with the applicable legal provisions, for a renewable period of three years. On penalty of indemnity, they may be dismissed during their mandate by the shareholders’ meeting for legal reasons only, subject to compliance with the procedure described in the Code of Companies and Associations.

The expiring mandate of a statutory auditor ceases immediately after the annual shareholders’ meeting.

Galapagos NV | Articles of Association | 17 March 2020 Page 8 of 18

Free translation from Dutch For information purposes only

In the absence of a statutory auditor whilst such appointment is required by law or when all statutory auditors are in the impossibility to perform their mandates, the supervisory board immediately convenes the shareholders’ meeting to arrange for their appointment or replacement.

The statutory auditors are granted a fixed remuneration by the shareholders’ meeting; this amount is established at the beginning of their mandate. This amount may be changed only by consent of the parties.

20 Task of the Statutory Auditor

The statutory auditors have, jointly or severally, an unlimited right of supervision over all activities of the company. They may review all books, correspondence, minutes and in general all documents of the company at the premises of the company.

Each semester, the supervisory board provides them with a status report summarizing the assets and liabilities of the company.

The statutory auditors may arrange to be assisted in the performance of their task, at their costs, by employees or other persons for whom they are responsible.

Title IV – Shareholders’ meetings

21 Composition and Authorities

The regularly composed shareholders’ meeting represents the entirety of the shareholders. The resolutions of the shareholders’ meeting are binding upon all shareholders, even those absent or those who voted against.

22 Meeting

The annual shareholders’ meeting is held on the last Tuesday of the month of April at 2:00 p.m. CET. If such day is a public holiday in Belgium or in The Netherlands, the shareholders’ meeting will be held on the following day that is a business day in both Belgium and The Netherlands, at 2:00 p.m. CET.

The annual shareholders’ meeting deals with the annual accounts and, after approval thereof, resolves by separate votes on the release from liability of the members of the supervisory board and the statutory auditor.

An extraordinary shareholders’ meeting may be convened each time the interest of the company so requires and is to be convened each time shareholders representing together at least one tenth of the capital so request in accordance with the applicable law.

The shareholders’ meetings take place at the office of the company or at any other place that is mentioned in the convening notice.

23 Notice

The shareholders’ meeting assembles pursuant to a convening notice issued by the supervisory board or by the statutory auditor(s).

The invitations to a shareholders’ meeting are made in accordance with applicable law.

The convening notice for a shareholders’ meeting contains at least the information as required by applicable law.

On the day of publication of the convening notice and uninterruptedly until the day of the shareholders’ meeting, the company makes available to its shareholders the information as required by applicable law. This information remains accessible on the company’s website for a period of five years as from the date of the shareholders’ meeting to which it relates.

Galapagos NV | Articles of Association | 17 March 2020 Page 9 of 18

Free translation from Dutch For information purposes only

The foregoing does not prejudice the possibility of one or more shareholders possessing together at least three percent of the capital to have items to be dealt with put on the agenda of the shareholders’ meeting and table proposals of resolutions with respect to items on the agenda or items to be put on the agenda, subject to compliance with applicable law. This does not apply in case a shareholders’ meeting is called with a new notice because the quorum required for the first convening was not satisfied, and provided that the first notice complied with the provisions of the law, the date of the second meeting is mentioned in the first notice and no new item is put on the agenda. The company must receive such requests ultimately on the 22^nd day before the date of the shareholders’ meeting. The items to be dealt with and the proposed resolutions pertaining thereto to be added to the agenda, as the case may be, will be published in accordance with the provisions of the Code of Companies and Associations. If a proxy form has already been submitted to the company before the publication of the completed agenda, the proxy holder will need to comply with the relevant provisions of the Code of Companies and Associations. The items to be dealt with and the proposed resolutions pertaining thereto that have been added to the agenda pursuant to the foregoing, shall only be discussed if all relevant provisions of the Code of Companies and Associations have been complied with.

24 Admission

The right to participate in a shareholders’ meeting and to vote is only granted based on an accounting registration of the shares on the name of the shareholder, on the 14^th day before the shareholders’ meeting, at midnight (CET), either by their registration in the register of registered shares of the company, or by their registration on the accounts of a recognized account holder or of a clearing institution, irrespective of the number of shares the shareholder possesses at the day of the shareholders’ meeting.

The day and time referred to in the first paragraph form the record date.

The shareholder notifies the company, or the person appointed by the company for this purpose, ultimately on the sixth day before the date of the meeting, that he wants to participate in the shareholders’ meeting.

The financial intermediary or the recognized account holder or the clearing institution provides the shareholder with a certificate evidencing the number of dematerialized shares registered in the shareholder’s name on his accounts on the record date, for which the shareholder has indicated his desire to participate in the shareholders’ meeting.

In a register designated by the supervisory board, the name and address or office of each shareholder who has notified the company of its intention to participate in the shareholders’ meeting are noted, as well as the number of shares he possessed on the record date and for which he has indicated to be participating in the shareholders’ meeting, and the description of the documents demonstrating that he was in possession of the shares on said record date.

An attendance list, mentioning the names of the shareholders and the number of shares they represent, must be signed by each of them or by their proxy holders before entering the meeting.

The holders of profit sharing certificates (“winstbewijzen/parts bénéficiaires”), non-voting shares, convertible bonds, subscription rights or other securities issued by the company, as well as the holders of certificates issued with collaboration of the company and representing securities issued by the company (if any such exist), may attend the shareholders’ meeting with advisory vote insofar permitted by law. They may only participate in the vote in the cases determined by law. They are in any event subject to the same formalities as those imposed on the shareholders, with respect to notice of attendance and admission, and the form and submission of proxies.

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Free translation from Dutch For information purposes only

25 Representation – Remote Voting – Remote Attendance

Each shareholder with voting rights may participate in the meeting in person or may have himself represented by a proxy holder in accordance with the provisions of the Code of Companies and Associations.

A person acting as proxy holder may carry a proxy of more than one shareholder; in such case he may vote differently for one shareholder than for another shareholder.

The appointment of a proxy holder by a shareholder must be in writing or by means of an electronic form and must be signed by the shareholder, as the case may be with an electronic signature within the meaning of the applicable law provisions.

The notification of the proxy to the company must be in writing, as the case may be by electronic means, to the address mentioned in the convening notice. The company must receive the proxy ultimately on the sixth day before the date of the meeting.

The supervisory board may determine the text of the proxies provided that the liberty of the shareholder to vote must be respected and that the modalities do not diminish the shareholder’s rights.

The supervisory board has the possibility to provide in the convening notice that the shareholders can vote remotely, prior to the shareholders’ meeting, by letter or electronically, by means of a form made available by the company.

In case of remote voting by letter, any forms that have not been received by the company ultimately on the sixth day before the date of the meeting shall not be taken into account.

In case of remote voting by electronic means, assuming the convening notice allows this, the modalities permitting the shareholder to vote by such means will be established by the supervisory board, who will ensure that the applied communication means are able to implement the mandatory legal statements, to supervise compliance with the required timing of receipt and to control the capacity and identity of the shareholder. Electronic voting is possible until the day prior to the shareholders’ meeting.

The shareholder who uses distant voting, either by letter, or, as the case may be, by electronic way, must comply with the requirements for admission as set forth in article 24 of the articles of association.

The supervisory board can offer the shareholders the possibility to participate in the shareholders’ meeting remotely, by means of a communication mechanism made available by the company. With respect to the compliance with the conditions relating to attendance and majority, the shareholders who participate in the shareholders’ meeting by such means, as the case may be, are deemed to be present at the location where the shareholders’ meeting is held. If the supervisory board offers the possibility to participate remotely in the shareholders’ meeting by such means, the board determines the conditions applicable hereto in accordance with the relevant provisions of the Code of Companies and Associations. The supervisory board may extend this possibility (if it is offered) to the holders of profit sharing certificates, non-voting rights, convertible bonds, subscription rights or certificates issued with collaboration of the company, taking into account the rights attached thereto and in accordance with the relevant provisions of the Code of Companies and Associations.

26 Bureau

Every shareholders’ meeting is chaired by the chairman of the supervisory board or, absent any chairman or if the chairman cannot attend, by another member of the supervisory board thereto appointed by his colleagues.

The chairman of the meeting appoints the secretary, who does not necessarily need to be shareholder or member of the supervisory board.

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Free translation from Dutch For information purposes only

If the number of shareholders so allows the shareholders’ meeting elects two vote counters. The other members of the supervisory board who are present complete the bureau.

27 Adjournment

The supervisory board has the right, prior to any ordinary, special or extraordinary shareholders’ meeting, to postpone or cancel the meeting. This is in addition to the legal right of the supervisory board to postpone any ordinary, special or extraordinary shareholders’ meeting for up to five weeks due to an announcement regarding a significant participation, and during the ordinary shareholders’ meeting to postpone for five weeks, the decision regarding the approval of the financial statements.

This adjournment of the decision regarding the approval of the financial statements puts an end to the deliberation and renders invalid the resolutions passed with regard to the financial statements, including the resolutions on the discharge of the members of the supervisory board and the auditors. However, it does neither affect the deliberation nor the decisions in respect of resolutions having nothing to do with the financial statements.

All shareholders shall be called to attend the next meeting and admitted, provided that they have completed the formalities laid down in the articles of association, and this regardless of whether or not they attend the first meeting either in person or by proxy.

At the second meeting, the agenda of the initial meeting shall be dealt with in its entirety.

28 Number of Votes

Each share carries one vote.

29 Deliberation

The shareholders’ meeting cannot deliberate on items that are not mentioned in the agenda, unless all shareholders are present or represented at the meeting and they unanimously decide to deliberate on these items.

The members of the supervisory board, and where applicable, the members of the management board, answer the questions they are asked by the shareholders, during the meeting or in writing, relating to their report or to the agenda items, insofar the communication of information or facts is not of such nature that it would be detrimental to the business interests of the company or to the confidentiality to which the company or its board members are bound. The statutory auditors answer the questions they are asked by the shareholders, during the meeting or in writing, relating to their report, insofar the communication of information or facts is not of such nature that it would be detrimental to the business interests of the company or to the confidentiality to which the company, its board members or the statutory auditors are bound. In case several questions relate to the same subject matter, the board members and the statutory auditors may respond in one answer. As soon as the convening notice is published, the shareholders may ask their questions in writing, which will be answered during the meeting by the board members or the statutory auditors, as the case may be, insofar such shareholders have complied with the formalities to be admitted to the meeting. The questions may also be directed to the company by electronic way via the address that is mentioned in the convening notice for the shareholders’ meeting. The company needs to receive these written questions ultimately on the sixth day before the meeting.

Except when otherwise provided for by legal provisions or by the articles of association, the resolutions are taken by simple majority of the votes cast, irrespective of the number of shares represented at the meeting.

If for a resolution pertaining to an appointment no candidate obtains the absolute majority of the votes cast, a new vote will be organized between the two candidates who obtained the most votes. If such new vote results in a tie, the elder candidate is elected.

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Free translation from Dutch For information purposes only

The votes cast during the meeting are taken by raising hands or by calling off names, unless the shareholders’ meeting decides otherwise by simple majority of the votes cast.

A change of the articles of association can only be validly deliberated and resolved by an extraordinary shareholders’ meeting in the presence of a notary and in compliance with applicable law.

30 Minutes

The minutes of the shareholders’ meeting are signed by the members of the bureau and by the shareholders who ask to do so. The attendance list, and as the case may be, reports, proxies and/or written votes shall remain attached to the minutes.

Except when otherwise provided for by law, extracts to be submitted in legal proceedings or otherwise, are to be signed by one or more members of the supervisory board.

The minutes shall mention, for every resolution, the number of shares for which valid votes are cast, the percentage of the capital that these shares represent, the total number of votes validly cast, and the number of votes cast in favor or against each resolution, as well as the number of abstentions, if any. In the minutes of the shareholders’ meetings with possibility of remote attendance (if this possibility is offered) the technical problems and incidents (if any) that have hindered or disturbed the participation by electronic means, shall be mentioned. This information will be published by the company on its website, within 15 days as from the shareholders’ meeting.

Title V – Annual Accounts – Distribution of Profits

31 Annual Accounts

The financial year commences on the first of January and ends on the thirty first of December of each calendar year.

At the end of each financial year the supervisory board draws up an inventory as well as the annual accounts. To the extent required by law, the members of the supervisory board also draw up a report in which they account for their management.

This report contains a comment on the annual accounts in which a true overview is given of the operations and of the position of the company, as well as other information required by applicable law.

32 Approval of the Annual Accounts

The annual shareholders’ meeting takes note of, as the case may be, the annual report and the report of the statutory auditor(s) and resolves on the approval of the annual accounts.

After approval of the annual accounts, the shareholders’ meeting resolves, by separate vote, on the release from liability of the members of the supervisory board and, as the case may be, of the statutory auditor(s). This release from liability is only valid if the annual accounts do not contain omissions or false statements which cover up the true situation of the company, and, with respect to acts in violation of the articles of association, only if these acts are specifically pointed out in the convening notice.

The supervisory board ensures that the annual accounts and, as the case may be, the annual report and other documents required by applicable law are filed with the National Bank of Belgium within 30 days after the approval of the annual accounts.

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33 Distribution

Each year an amount of five percent of the net profits mentioned in the annual accounts is allocated to constitute a legal reserve; such allocation ceases to be mandatory once the legal reserve amounts to one tenth of the capital.

Upon a motion of the supervisory board, the shareholders’ meeting resolves with simple majority of the votes cast on the destination of the balance of the net profits, subject to the provisions of the Code of Companies and Associations.

34 Dividend Payments

The payment of dividends occurs at the date and place determined by the supervisory board.

Subject to the provisions of the Code of Companies and Associations, the supervisory board may distribute interim dividends out of the current financial year’s results or out of the profit of the previous financial year as long as the financial statements of that financial year have not yet been approved.

Title VI – Dissolution – Winding-Up

35 Early Dissolution

When, as a result of losses incurred, the net assets have decreased to a level of less than half of the capital, the members of the supervisory board must submit a motion on the dissolution of the company and, as the case may be, other measures to the shareholders’ meeting, who will deliberate in accordance with applicable law.

When the net assets, as a result of losses incurred, have decreased to a level of less than one fourth of the capital, a resolution to dissolve the company can be taken by one fourth of the votes cast at the shareholders’ meeting, whereby abstentions are not included in the numerator nor in the denominator.

When the net assets have decreased to a level of less than the legal minimum amount, every party having an interest or the public prosecutor may petition the court to dissolve the company in accordance with applicable law. As the case may be the court may allow the company a period to regularize its situation.

36 Dissolution

A motion to dissolve the company voluntarily can be resolved only by an extraordinary shareholders’ meeting and is subject to the applicable legal provisions.

After its winding-up, and until the closing of its liquidation, the company continues to exist by operation of law as a legal entity for the purposes of its liquidation.

37 Winding-Up

In case of winding-up of the company, for any reason or at any time whatsoever, the winding-up is performed by liquidators appointed by the shareholders’ meeting, and absent such appointment, the winding-up is performed by the supervisory board acting in capacity of winding-up committee.

Except if otherwise resolved, the liquidators act jointly. To this effect, the liquidators have the most extensive powers in accordance with applicable law, subject to restrictions imposed by the shareholders’ meeting.

The shareholders’ meeting determines the compensation of the liquidators and their powers.

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Free translation from Dutch For information purposes only

38 Apportionment

Following settlement of all debts, charges and costs of the liquidation, the net assets are first used to pay back, in cash or in kind, the fully paid-up and not yet paid back amount of the shares.

The balance, as the case may be, is divided in equal parts among all shares. The profit sharing certificates are not entitled to a part of the liquidation balance.

If the net proceeds are not sufficient to pay back all shares, the liquidators will first pay back these shares that are paid-up to a higher extent until they are at a level equal to the shares that are paid-up to a lesser extent, or they call for an additional paying-up of capital for the latter shares.

Title VII – General Provisions

39 Election of Domicile

Each member of the supervisory board, member of the management board, person entrusted with the day-to-day management of the company and liquidator having its official residence abroad, elects domicile for the duration of his mandate at the office of the company, where writs of summons and notifications concerning company matters and the responsibility for its management can be validly made, with the exception of the notices to be made pursuant to these articles of association.

The holders of registered shares are obliged to notify the company of every change in domicile. Absent such notification, they are deemed to have elected domicile at their previous domicile.

40 Legal Provisions Incorporated in these Articles of Association

The provisions of these articles of association that literally set forth the contents of the provisions of the Code of Companies and Associations, are mentioned for information purposes only and do not acquire thereby the character of statutory provision (“statutaire bepaling”).

41 Applicable Law

For all matters that are not expressly regulated in these articles of association, or for the legal provisions from which would not be validly deviated in these articles of association, the provisions of the Code of Companies and Associations and the other provisions of Belgian law apply.

42 Indemnification

To the extent permitted by law, the company will be permitted to indemnify its members of the supervisory board, members of the management board, employees and representatives for all damages they may be due, as the case may be, to third parties as a result of breach of their obligations towards the company, managerial mistakes and violations of the Code of Companies and Associations, with the exclusion of damages that are due as a result of gross or intentional misconduct.

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Free translation from Dutch For information purposes only

Temporary provisions of the articles of association

Authorized capital

The supervisory board has been granted the authority to increase the subscribed capital of the company, in accordance with applicable law, in one or several times, to the extent set forth hereafter. This authorization is valid for a period of five years from the date of publication of this authorization in the Annexes to the Belgian State Gazette.

Without prejudice to more restrictive rules set forth by law and without prejudice to the specific authorization for specific circumstances granted by the extraordinary shareholders’ meeting of 25 April 2017 as mentioned in the section “Use of authorized capital in specific circumstances” of the articles of association of the company, the supervisory board can increase the subscribed capital of the company in one or several times with an amount of up to EUR 67,022,402.04, i.e. 20 percent of the subscribed capital at the time of the convening of the shareholders’ meeting granting this authorization. In accordance with applicable law, the supervisory board cannot use the aforementioned authorization after the Financial Services and Markets Authority (FSMA) has notified the company of a public takeover bid for the company’s shares.

The capital increases within the framework of the authorized capital may be achieved by the issuance of shares (with or without voting rights, and as the case may be in the context of a subscription rights plan for the company’s or its subsidiaries’ personnel, members of the supervisory board, members of the management board and/or independent consultants), convertible bonds and/or subscription rights exercisable by contributions in cash or in kind, with or without issuance premium, and also by the conversion of reserves, including issuance premiums. Aforementioned subscription rights plans can provide that, in exceptional circumstances (among others in the event of a change in control of the company or decease), subscription rights can be exercised before the third anniversary of their award, even if the beneficiary of such subscription right is a member of the supervisory board, a member of the management board or a person entrusted with the day-to-day management.

When increasing the subscribed capital within the limits of the authorized capital, the supervisory board may, in the company’s interest, restrict or cancel the shareholders’ preferential subscription rights, even if such restriction or cancellation is made for the benefit of one or more specific persons other than the employees of the company or its subsidiaries.

The supervisory board can ask for an issuance premium when issuing new shares in the framework of the authorized capital. If the supervisory board decides to do so, such issuance premium is to be booked on a non-available reserve account that can only be reduced or transferred by a decision of the shareholders’ meeting adopted in the manner required for amending the articles of association.

The supervisory board is authorized to bring the company’s articles of association in line with the capital increases which have been decided upon within the framework of the authorized capital, or to instruct a notary public to do so.

Use of authorized capital in specific circumstances

The supervisory board has been granted the authority to increase the subscribed capital of the company, in accordance with applicable law, in one or several times, to the extent set forth hereafter. This authorization is valid for a period of five years from the date of publication of this authorization in the Annexes to the Belgian State Gazette.

Without prejudice to more restrictive rules set forth by law, but also without prejudice to any other less restrictive authorizations granted by the extraordinary shareholders’ meeting of 25 April 2017, the supervisory board can

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Free translation from Dutch For information purposes only

increase the subscribed capital of the company in one or several times with an amount up to EUR 82,561,764.93, i.e. 33 percent of the subscribed capital at the time of the convening of the shareholders’ meeting granting this authorization, upon a resolution of the supervisory board that all independent members of the supervisory board (within the meaning of the Code of Companies and Associations juncto the relevant principles of the Corporate Governance Code 2020) approved and relating to (i) the entire or partial financing of a transaction through the issue of new shares of the company, whereby “transaction” is defined as an acquisition (in shares and/or cash), a corporate partnership, or an in-licensing deal, (ii) the issue of subscription rights in connection with company’s remuneration policy for its and its subsidiaries’ employees, members of the supervisory board, members of the management board and independent advisors, (iii) the financing of the company’s research and development programs or (iv) the strengthening of the company’s cash position. In accordance with applicable law, the supervisory board cannot use the aforementioned authorization after the Financial Services and Markets Authority (FSMA) has notified the company of a public takeover bid for the company’s shares. The maximum amount with which the subscribed capital can be increased in the framework of the authorized capital as mentioned in this temporary provision of the articles of association, is to be reduced by the amount of any capital increase realized in the framework of the authorized capital as mentioned in the preceding temporary provision of the articles of association (if any).

The capital increases within the framework of the authorized capital may be achieved by the issuance of shares (with or without voting rights, and as the case may be in the context of a subscription rights plan for the company’s or its subsidiaries’ personnel, members of the supervisory board, members of the management board and/or independent consultants), convertible bonds and/or subscription rights exercisable by contributions in cash or in kind, with or without issuance premium, and also by the conversion of reserves, including issuance premiums. Aforementioned subscription rights plans can provide that, in exceptional circumstances (among others in the event of a change in control of the company or decease), subscription rights can be exercised before the third anniversary of their award, even if the beneficiary of such subscription rights is a member of the Supervisory Board, a member of the Management Board or a person entrusted with the day-to-day management.

When increasing the subscribed capital within the limits of the authorized capital, the supervisory board may, in the company’s interest, restrict or cancel the shareholders’ preferential subscription rights, even if such restriction or cancellation is made for the benefit of one or more specific persons other than the employees of the company or its subsidiaries.

The supervisory board can ask for an issuance premium when issuing new shares in the framework of the authorized capital. If the supervisory board decides to do so, such issuance premium is to be booked on a non-available reserve account that can only be reduced or transferred by a decision of the shareholders’ meeting adopted in the manner required for amending the articles of association.

The supervisory board is authorized to bring the company’s articles of association in line with the capital increases which have been decided upon within the framework of the authorized capital, or to instruct a notary public to do so.

*

**

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EX-2.3

Exhibit 2.3

DESCRIPTION OF SECURITIES

The following description of the securities registered under Section 12 of the Securities Exchange Act of 1934 of Galapagos NV (“Galapagos,” “us,” “our,” “we” or the “Company”) is a summary of the rights of our ordinary shares and certain provisions of our articles of association in effect as of March 18, 2022. This summary does not purport to be complete and is qualified in its entirety by the provisions of our articles of association previously filed with the Securities and Exchange Commission and incorporated by reference as an exhibit to the Annual Report on Form 20-F of which this Exhibit 2.3 is a part, as well as to the applicable provisions of Belgian legislation on stock corporations. We encourage you to read our articles of association and applicable Belgian legislation on stock corporations carefully.

Articles of association and other share information

Corporate profile

Our legal and commercial name is Galapagos NV. We are a limited liability company incorporated in the form of a naamloze vennootschap / société anonyme under Belgian law. We are registered with the Register of Legal Entities (Antwerp, division Mechelen) under the enterprise number 0466.460.429. Our principal executive and registered offices are located at Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium and our telephone number is +32 15 342 900. Our agent for service of process in the United States is CT Corporation System, located at 28 Liberty Street, New York, New York 10005, United States of America.

We were incorporated in Belgium on June 30, 1999 for an unlimited duration. Our fiscal year ends December 31.

Share capital

Share capital and shares

Our share capital consists of ordinary shares without par value and is fully paid-up. Our shares are not separated into classes. As of December 31, 2021, our issued and paid-up share capital €353,819,443.97, represented by 65,411,767 ordinary shares without par value, each representing an identical fraction of our share capital. As of December 31, 2021, we had ten shareholders who held shares in registered form, representing less than 0.01% of our ordinary shares. The remainder of our ordinary shares are in dematerialized form. As of December 31, 2021, neither we nor any of our subsidiaries held any of our own shares.

As of March 15, 2022, we estimated that approximately 40% of our outstanding ordinary shares and ADS were held in the United States by an estimated 175 institutional holders of record, excluding Gilead Sciences, Inc.

Other outstanding securities

In addition to the shares already outstanding, we have granted subscription rights, which upon exercise will lead to an increase in the number of our outstanding shares. A total of 8,579,837 subscription rights (where each subscription right entitles the holder to subscribe for one new ordinary share) were outstanding and granted as of December 31, 2021, which represent approximately 13.08% of the total number of all our issued and outstanding voting financial instruments and subscription rights as of December 31, 2021.

Form and transferability of our shares

All of our shares belong to the same class of securities and are in registered form or in dematerialized form. All of our outstanding shares are fully paid-up and freely transferable, subject to any contractual restrictions.

Currency

Our share capital, which is represented by our outstanding ordinary shares, is denominated in euros.

Changes to our share capital

Changes to our share capital are decided by our shareholders, which may at any time resolve to increase or decrease our share capital. Any such resolution must satisfy the quorum and majority requirements that apply to an amendment of the articles of association, as described in “Description of Securities—Ordinary Shares—Right to Attend and Vote at Our Shareholders’ Meeting—Quorum and Majority Requirements.” No shareholder is liable to make any further contribution to our share capital other than with respect to shares held by such shareholder that would not be fully paid-up.

Share capital increases by our supervisory board

Subject to the quorum and majority requirements described in “Description of Securities—Ordinary Shares— Right to Attend and Vote at Our Shareholders’ Meeting—Quorum and Majority Requirements,” our shareholders’ meeting may authorize our supervisory board, within certain limits, to increase our share capital without any further approval being required from our shareholders’ meeting. Such pre-authorized capital increase is referred to as authorized capital. This authorization can only be granted for a renewable period of a maximum of five years and may not exceed the amount of the registered share capital at the time of the authorization.

This authorization consists of two parts. A general authorization for capital increases up to 20% of the share capital at the time of convening the shareholders’ meeting of October 22, 2019 (i.e. €67,022,402.04) was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State Gazette, i.e. November 13, 2019. A specific authorization for capital increases of more than 20% and up to 33% of the share capital at the time of the convening the shareholders’ meeting of April 25, 2017 (i.e. EUR 82,561,764.93), was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State Gazette, i.e. May 31, 2017. This specific part of the authorized capital can, however, only be used upon a resolution of the supervisory board that all independent supervisory board members (within the meaning of article 7:87 of the Belgian Companies Code) approve and relating to (i) the entire or partial financing of a transaction through the issue of new shares of the Company, whereby “transaction” is defined as an acquisition (in shares and/or cash), a corporate partnership, or an in-licensing deal, (ii) the issue of warrants in connection with Company’s remuneration policy for its and its subsidiaries’ employees, directors and independent advisors, (iii) the financing of the Company’s research and development programs or (iv) the strengthening of the Company’s cash position. The specific authorization will expire on May 30, 2022.

On December 31, 2021, an amount of €41,775,187 still remained available under the general part of the authorized capital and an amount of €13,717,929.80 under the specific part of the authorized capital. As of the date of this annual report, our supervisory board may decide to issue up to 7,721,846 ordinary shares pursuant to the general authorization and 2,535,661 ordinary shares pursuant to the specific authorization, without taking into account however subsequent issuances under our subscription right programs or otherwise.

Preferential subscription rights

In the event of a share capital increase for cash through the issuance of new shares, or in the event we issue convertible bonds or subscription rights, our existing shareholders have a preferential right to subscribe, pro rata, to the new shares, convertible bonds or subscription rights. These preferential subscription rights are transferable during the subscription period. Our supervisory board may decide that preferential subscription rights that were not exercised by any shareholders shall accrue proportionally to the other shareholders that have already exercised their preferential subscription rights and may fix the practical terms for such subscription.

Our shareholders’ meeting may resolve to limit or cancel this preferential subscription right, subject to special reporting requirements. Such resolution must satisfy the same quorum and majority requirements as the decision to increase our share capital.

Shareholders may also decide to authorize our supervisory board to limit or cancel the preferential subscription right within the framework of the authorized capital, subject to the terms and conditions set forth in the Belgian Companies Code. Our supervisory board currently has the authority to increase the share capital within the framework of the authorized capital, and to limit or cancel the preferential subscription right within the framework of the authorized capital, for a period of five years from the date of publication of the relevant renewed authorization in the Annexes to the Belgian State Gazette, i.e. November 13, 2019 for the general authorization and May 31, 2017 for the specific authorization. The specific authorization will expire on May 30, 2022. See also “—Share Capital Increases by Our Board of Directors” above.

Under the DGCL, stockholders of a Delaware corporation have no preemptive rights to subscribe for additional issues of stock or to any security convertible into such stock unless, and to the extent that, such rights are expressly provided for in the corporation’s certificate of incorporation.

Purchases and sales of our own shares

We may only repurchase our own shares pursuant to an authorization of our shareholders’ meeting taken under the conditions of quorum and majority provided for in the Belgian Companies Code. Pursuant to the Belgian Companies Code, such a decision requires a quorum of shareholders holding an aggregate of at least 50% of the share capital and approval by a majority of at least 75% of the share capital present or represented. If there is no quorum, a second meeting must be convened. No quorum is required at the second meeting, but the relevant resolution must be approved by a majority of at least 75% of the share capital present or represented.

Within such authorization, we may only repurchase our own shares if the amount that we would use for repurchase is available for distribution. Currently we have no such an authorization and we neither have any funds available for distribution, nor own any of our own shares.

Under the DGCL, a Delaware corporation may purchase or redeem its own shares, unless the capital of the corporation is impaired or the purchase or redemption would cause an impairment of the capital of the corporation.

Belgian legislation

Disclosure of significant shareholdings

The Belgian Law of May 2, 2007 on the disclosure of significant shareholdings in issuers whose securities are admitted to trading on a regulated market requires each person or legal entity acquiring or transferring our shares (directly or indirectly, by ownership of ADSs or otherwise, and including equivalent financial instruments) to notify us and the Belgian FSMA each time they cross (upwards or downwards) a threshold of 5% of the total number of outstanding voting rights or a multiple thereof.

Similarly, if as a result of events changing the breakdown of voting rights, the percentage of the voting rights reaches, exceeds or falls below any of the above thresholds, disclosure is required even when no acquisition or disposal of shares or ADSs has occurred (e.g., as a result of a capital increase or a capital decrease). Finally, disclosure is also required when persons acting in concert enter into, modify or terminate their agreement resulting in their voting rights reaching, exceeding or falling below any of the above thresholds.

The disclosure statements must be addressed to the Belgian FSMA and to us at the latest on the fourth trading day following the day on which the circumstance giving rise to the disclosure occurred. Unless otherwise provided by law, a shareholder shall only be allowed to vote at our shareholders’ meeting the number of shares such shareholder validly disclosed at the latest twenty days before such meeting.

In accordance with U.S. federal securities laws, holders of our ordinary shares and holders of ADSs will be required to comply with disclosure requirements relating to their ownership of our securities. Any person that, after acquiring beneficial ownership of our ordinary shares or the ADSs, is the beneficial owner of more than 5% of our outstanding ordinary shares or ordinary shares underlying ADSs must file with the SEC a Schedule 13D or Schedule 13G, as applicable, disclosing the information required by such schedules, including the number of our ordinary shares or ordinary shares underlying ADSs that such person has acquired (whether alone or jointly with one or more other persons). In addition, if any material change occurs in the facts set forth in the report filed on Schedule 13D (including a more than 1% increase or decrease in the percentage of the total shares beneficially owned), the beneficial owner must promptly file an amendment disclosing such change.

Disclosure of net short positions

Pursuant to the Regulation (EU) No. 236/2012 of the European Parliament and the Council on short selling and certain aspects of credit default swaps, any person that acquires or disposes of a net short position relating to our issued share capital, whether by a transaction in shares or ADSs, or by a transaction creating or relating to any financial instrument where the effect or one of the effects of the transaction is to confer a financial advantage on the person entering into that transaction in the event of a decrease in the price of such shares or ADSs is required to notify the Dutch AFM (Stichting Autoriteit Financiële Markten) if, as a result of such acquisition or disposal his net short position reaches, exceeds or falls below 0.2% of our issued share capital and each 0.1% above that. If the net short position reaches 0.5%, and also at every 0.1% above that, the Dutch AFM will disclose the net short position to the public.

Public takeover bids

The European Takeover Directive 2004/25/EC of 21 April 2004 has been implemented in Belgium through the Law of April 1, 2007 on public takeovers, or the Takeover Law, the Royal Decree of April 27, 2007 on public takeovers and the Royal Decree of April 27, 2007 on squeeze-out bids.

Public takeover bids in Belgium for our shares or other securities giving access to voting rights are subject to supervision by the Belgian FSMA. The Takeover Law determines when a bid is deemed to be public in Belgium. Public takeover bids must be extended to all of our voting securities, as well as all other securities giving access to voting rights. Prior to making a bid, a bidder must publish a prospectus that has been approved by the Belgian FSMA prior to publication.

The Takeover Law provides that a mandatory bid must be launched on all our shares (and our other securities giving access to voting rights), if a person, as a result of its own acquisition or the acquisition by persons acting in concert with it or by persons acting for its account, directly or indirectly holds more than 30% of our voting securities (directly or through ADSs).

Squeeze-out

Pursuant to Article 7:82 of the new Belgian Companies Code and the regulations promulgated thereunder, a person or legal entity, or different persons or legal entities acting alone or in concert, that own together with the company 95% of the securities with voting rights in a public company are entitled to acquire the totality of the securities with voting rights in that company following a squeeze-out offer. The securities that are not voluntarily tendered in response to such an offer are deemed to be automatically transferred to the bidder at the end of the procedure. At the end of the procedure, the company is no longer deemed a public company, unless bonds issued by the company are still spread among the public. The consideration for the securities must be in cash and must represent the fair value (verified by an independent expert) in order to safeguard the interests of the transferring shareholders.

The DGCL provides for stockholder appraisal rights, or the right to demand payment in cash of the judicially determined fair value of the stockholder’s shares, in connection with certain mergers and consolidations.

Limitations on the right to own securities

Neither Belgian law nor our articles of association impose any general limitation on the right of non-residents or foreign persons to hold our securities or exercise voting rights on our securities other than those limitations that would generally apply to all shareholders.

Exchange controls and limitations affecting shareholders

There are no Belgian exchange control regulations that impose limitations on our ability to make, or the amount of, cash payments to residents of the United States. We are in principle under an obligation to report to the National Bank of Belgium certain cross-border payments, transfers of funds, investments and other transactions in accordance with applicable balance-of-payments statistical reporting obligations. Where a cross-border transaction is carried out by a Belgian credit institution on our behalf, the credit institution will in certain circumstances be responsible for the reporting obligations.

Securities exercisable for ordinary shares

The section titled “Item 6.B.—Compensation—Subscription Right Plans” in our Annual Report on Form 20-F for the year ended December 31, 2021, incorporated by reference herein, sets forth a description of subscription rights granted by our supervisory board to our members of the supervisory board, members of the management board and employees as of December 31, 2021.

The section titled “Item 6.B.—Compensation—RSU Plans” in our Annual Report on Form 20-F for the year ended December 31, 2021, incorporated by reference herein, sets forth a description of restricted stock units granted by our supervisory board to members of the management board and employees, as of December 31, 2021.

Apart from the subscription rights, Subscription Right plans, RSUs and RSU plans, we do not currently have other stock options, options to purchase securities, convertible securities or other rights to subscribe for or purchase securities outstanding.

Ordinary shares

The following description is a summary of certain information relating to the rights and benefits attached to our ordinary shares, certain provisions of our articles of association and the Belgian Companies Code. Because this description is a summary, it may not contain all of the information important to you. Accordingly, this description is qualified entirely by reference to the description of our share capital and the material terms of our articles of association contained in our most recent Annual Report on Form 20-F as updated by other reports and documents we file with the SEC after the date hereof, together with our articles of association, a copy of which has been filed as an exhibit to our most recent Annual Report on Form 20-F.

Right to attend and vote at our shareholders’ meetings

Annual shareholders’ meeting

Pursuant to our articles of association, our annual shareholders’ meeting is held each year on the last Tuesday of the month of April, at 2 p.m. (Central European Time), at our registered office or at any other place in Belgium mentioned in the convening notice of the meeting. If this date is a public holiday in Belgium or in The Netherlands, the meeting is held on the following day that is a business day both in Belgium and in The Netherlands, at the same time.

Special and extraordinary shareholders’ meetings

Our supervisory board or the auditor (or the liquidators, if appropriate) may, whenever our interests so require, convene a special or extraordinary shareholders’ meeting. Such shareholders’ meeting must also be convened when one or more shareholders holding at least one-tenth of our share capital so requests.

Under the DGCL, special meetings of the stockholders of a Delaware corporation may be called by such person or persons as may be authorized by the certificate of incorporation or by the bylaws of the corporation, or if not so designated, as determined by the board of directors. Stockholders generally do not have the right to call meetings of stockholders, unless that right is granted in the certificate of incorporation or the bylaws.

Notices convening shareholders’ meetings

Convening notices of our shareholders’ meetings contain the agenda of the meeting, indicating the items to be discussed as well as any proposed resolutions that will be submitted at the meeting. One or more shareholders holding at least 3% of our share capital may request for items to be added to the agenda of any convened meeting and submit proposed resolutions in relation to existing agenda items or new items to be added to the agenda, provided that:

·they prove 1 ownership of such shareholding as at the date of their request and record their shares representing such shareholding on the record date; and

·the additional items for the agenda and any proposed resolutions have been submitted in writing by these shareholders to the board of directors at the latest on the twenty-second day preceding the day on which the relevant shareholders’ meeting is held.

The shareholding must be proven by a certificate evidencing the registration of the relevant shares in the share register of the company or by a certificate issued by the authorized account holder or the clearing organization certifying the book-entry of the relevant number of dematerialized shares in the name of the relevant shareholder(s).

The convening notice must be published in the Belgian Official Gazette (Belgisch Staatsblad / Moniteur belge) at least thirty days prior to the shareholders’ meeting. In the event a second convening notice is necessary, and the date of the second meeting is mentioned in the first convening notice, that period is seventeen days prior to the second shareholders’ meeting. The notice must also be published in a national newspaper thirty days prior to the date of the shareholders’ meeting, except if the meeting concerned is an annual shareholders’ meeting held at the municipality, place, day and hour mentioned in the articles of association and its agenda is limited to the examination of the annual accounts, the annual report of the supervisory board, the annual report of the auditor, the vote on the discharge of the supervisory board members and the auditor and the vote on the items referred to in Article 7:92 and 7:149, third paragraph of the Belgian Companies Code (i.e., in relation to severance pay exceeding certain thresholds and the remuneration report). Convening notices of all our shareholders’ meetings and all related documents, such as specific supervisory board and auditor’s reports, are also published on our website.

Convening notices must also be sent thirty days prior to the shareholders’ meeting to the holders of registered shares, holders of registered bonds, holders of registered subscription rights, holders of registered certificates issued with our cooperation and to our supervisory board members and auditor. This communication is made by ordinary letter unless the addressees have individually and expressly accepted in writing to receive the notice by another form of communication, without having to give evidence of the fulfillment of such formality.

Under the DGCL, unless otherwise provided in the certificate of incorporation or bylaws, written notice of any meeting of the stockholders of a Delaware corporation must be given to each stockholder entitled to vote at the meeting not less than ten nor more than sixty days before the date of the meeting and shall specify the place, date, hour and, in the case of a special meeting, the purpose of the meeting.

Admission to meetings

A shareholder is only entitled to participate in and vote at a shareholders’ meeting, irrespective of the number of shares he owns on the date of the shareholders’ meeting, provided that his shares are recorded in his name at midnight (Central European Time) at the end of the fourteenth day preceding the date of the shareholders’ meeting, or the record date:

· in case of registered shares, in our register of registered shares; or

· in case of dematerialized shares, through book-entry in the accounts of an authorized account holder or clearing organization.

In addition, we (or the person designated by us) must, at the latest on the sixth day preceding the day of the shareholders’ meeting, be notified as follows of the intention of the shareholder to participate in the shareholders’ meeting:

· in case of registered shares, the shareholder must, at the latest on the above-mentioned date, notify us (or the person designated by us) in writing of his intention to participate in the shareholders’ meeting and of the number of shares he intends to participate in the shareholders’ meeting with by returning a signed paper form, or, if permitted by the convening notice, by sending an electronic form (signed by means of an electronic signature in accordance with the applicable Belgian law) electronically, to us on the address indicated in the convening notice; or

· in case of dematerialized shares, the shareholder must, at the latest on the above-mentioned date, provide us (or the person designated by us), or arrange for us (or the person designated by us) to be provided with, a certificate issued by the authorized account holder or clearing organization certifying the number of dematerialized shares recorded in the shareholder’s accounts on the record date in respect of which the shareholder has indicated his intention to participate in the shareholders’ meeting.

Each shareholder has the right to attend a shareholders’ meeting and to vote at such meeting in person or through a proxy holder. The proxy holder does not need to be a shareholder. A shareholder may only appoint one person as proxy holder for a particular shareholders’ meeting, except in cases provided for by law. Our supervisory board may determine the form of the proxies. The appointment of a proxy holder must in any event take place in paper form or electronically, the proxy must be signed by the shareholder (as the case may be, by means of an electronic signature in accordance with the applicable Belgian law) and we must receive the proxy at the latest on the sixth day preceding the day on which the shareholders’ meeting is held.

Pursuant to Article 7, section 5 of the Belgian Law of May 2, 2007 on the disclosure of significant shareholdings, a transparency declaration has to be made if a proxy holder that is entitled to voting rights above the threshold of 5% or any multiple thereof of the total number of voting rights attached to our outstanding financial instruments on the date of the relevant shareholders’ meeting would have the right to exercise the voting rights at his discretion.

Votes

Each shareholder is entitled to one vote per share.

Voting rights can be suspended in relation to shares:

· that were not fully paid up, notwithstanding the request thereto of our supervisory board;

· to which more than one person is entitled, except in the event a single representative is appointed for the exercise of the voting right;

· that entitle their holder to voting rights above the threshold of 5% or any multiple thereof of the total number of voting rights attached to our outstanding financial instruments on the date of the relevant

general shareholders’ meeting, except to the extent where the relevant shareholder has notified us and the Belgian FSMA at least twenty days prior to the date of such shareholders’ meeting of its shareholding reaching or exceeding the thresholds above; or

· of which the voting right was suspended by a competent court or the Belgian FSMA.

Quorum and majority requirements

Generally, there is no quorum requirement for our shareholders’ meeting, except as provided for by law in relation to decisions regarding certain matters. Decisions are made by a simple majority, except where the law provides for a special majority.

Under the DGCL, the certificate of incorporation or bylaws of a Delaware corporation may specify the number of shares required to constitute a quorum but in no event shall a quorum consist of less than one-third of shares entitled to vote at a meeting. In the absence of such specifications, a majority of shares entitled to vote shall constitute a quorum.

Matters involving special legal quorum and majority requirements include, among others, amendments to the articles of association, issues of new shares, convertible bonds or subscription rights and decisions regarding mergers and demergers, which require at least 50% of the share capital to be present or represented and approval by a majority of at least 75% of votes cast. If the quorum is not reached, a second meeting may be convened at which no quorum requirement applies. The special majority requirement for voting, however, remains applicable.

Any modification of our corporate purpose or legal form requires a quorum of shareholders holding an aggregate of at least 50% of the share capital and approval by a majority of at least 80% of votes cast. If there is no quorum, a second meeting must be convened. At the second meeting, no quorum is required, but the relevant resolution must be approved by a majority of at least 80% of the votes cast.

Right to ask questions at our shareholders’ meetings

Within the limits of Article 7:139 of the Belgian Companies Code, members of our supervisory board and our auditor will answer, during the shareholders’ meeting, the questions raised by shareholders. Shareholders can ask questions either during the meeting or in writing, provided that we receive the written questions at the latest on the sixth day preceding the shareholders’ meeting.

Dividends

All shares participate in the same manner in our profits, if any. Pursuant to the Belgian Companies Code, the shareholders can in principle decide on the distribution of profits with a simple majority vote at the occasion of the annual shareholders’ meeting, based on the most recent non-consolidated statutory audited annual accounts, prepared in accordance with the generally accepted accounting principles in Belgium and based on a (non-binding) proposal of our supervisory board. The articles of association also authorize our supervisory board to declare interim dividends subject to the terms and conditions of the Belgian Companies Code.

Dividends can only be distributed if following the declaration and issuance of the dividends the amount of our net assets on the date of the closing of the last financial year according to the non-consolidated statutory annual accounts (i.e., the amount of the assets as shown in the balance sheet, decreased with provisions and liabilities, all as prepared in accordance with Belgian accounting rules), decreased with the non-amortized costs of incorporation and expansion and the non-amortized costs for research and development, does not fall below the amount of the paid-up capital (or, if higher, the called capital), increased with the amount of non-distributable reserves. In addition, prior to distributing dividends, at least 5% of our annual net profit under our non-consolidated statutory accounts (prepared in accordance with Belgian accounting rules) must be allotted to a legal reserve, until the legal reserve amounts to 10% of the share capital.

The right to payment of dividends expires five years after the supervisory board declared the dividend

payable.

Under the DGCL, a Delaware corporation may pay dividends out of its surplus (the excess of net assets over capital), or in case there is no surplus, out of its net profits for either or both of the fiscal year in which the dividend is declared and the preceding fiscal year (provided that the amount of the capital of the corporation is not less than the aggregate amount of the capital represented by the issued and outstanding stock of all classes having a preference upon the distribution of assets). Dividends may be paid in the form of shares, property or cash.

Appointment of supervisory board members

Our articles of association provide that our supervisory board shall be composed of at least five and a maximum of nine members. The supervisory board members are appointed by the shareholders, except in the case of vacancy, when the supervisory board may temporarily fill such vacancy until the shareholders appoint a new director.

Liquidation rights

Our company can only be voluntarily dissolved by a shareholders’ resolution passed with a majority of at least 75% of the votes cast at an extraordinary shareholders’ meeting where at least 50% of the share capital is present or represented. In the event the required quorum is not present or represented at the first meeting, a second meeting needs to be convened through a new convening notice. The second shareholders’ meeting can validly deliberate and decide regardless of the number of shares present or represented.

Under the DGCL, unless the board of directors approves the proposal to dissolve, dissolution of a Delaware corporation must be approved by stockholders holding 100% of the total voting power of the corporation. Only if the dissolution is initiated by the board of directors may it be approved by a simple majority of the corporation’s outstanding shares. The DGCL allows a Delaware corporation to include in its certificate of incorporation a supermajority voting requirement in connection with dissolutions initiated by the board.

In the event of the dissolution and liquidation of our company, the assets remaining after payment of all debts and liquidation expenses (on a non-consolidated basis) will be distributed to our shareholders, each receiving a sum on a pro rata basis.

If, as a result of losses incurred, the ratio of our net assets (on a non-consolidated basis, determined in accordance with Belgian legal and accounting rules) to share capital is less than 50%, our supervisory board must convene a general shareholders’ meeting within two months of the date upon which our supervisory board discovered or should have discovered this undercapitalization. At this shareholders’ meeting, our supervisory board needs to propose either our dissolution or our continuation, in which case our supervisory board must propose measures to redress our financial situation. Our supervisory board must justify its proposals in a special report to the shareholders. Shareholders representing at least 75% of the votes validly cast at this meeting have the right to dissolve the company, provided that at least 50% of our share capital is present or represented at the meeting. In the event the required quorum is not present or represented at the first meeting, a second meeting needs to be convened through a new notice. The second shareholders’ meeting can validly deliberate and decide regardless of the number of shares present or represented.

If, as a result of losses incurred, the ratio of our net assets to share capital is less than 25%, the same procedure must be followed, it being understood, however, that in that case, shareholders representing 25% of the votes validly cast at the meeting can decide to dissolve the company. If the amount of our net assets has dropped below €61,500, any interested party is entitled to request the competent court to dissolve the company. The court can order our dissolution or grant a grace period during which time we must remedy the situation. Holders of ordinary shares have no sinking fund, redemption or appraisal rights.

ADSs

Citibank, N.A., as depositary, registers and delivers ADSs. Each ADS represents one ordinary share (or a right to receive one ordinary share) deposited with Citibank International Limited (located at EGSP 186, 1 North Wall Quay, Dublin 1, Ireland) or any successor, as custodian for the depositary. Each ADS will also represent any other securities, cash or other property which may be held by the depositary in respect of the depositary facility. The depositary’s principal executive office at which the ADSs are administered is located at 388 Greenwich Street, New York, New York 10013.

A deposit agreement among us, the depositary and the ADS holders sets out the ADS holder rights as well as the rights and obligations of the depositary. New York law governs the deposit agreement and the ADSs. A copy of the deposit agreement is incorporated by reference as an exhibit to this annual report.

Voting

Voting instructions may be given only in respect of a number of ADSs representing an integral number of deposited securities. Upon the timely receipt from a holder of ADSs as of the ADS record date of voting instructions in the manner specified by the Depositary, the depositary shall endeavor, insofar as practicable and permitted under applicable law, the provisions of the deposit agreement, Articles of Association of the Company and the provisions of the deposited securities, to vote, or cause the custodian to vote, the deposited securities represented by such holder’s ADSs in accordance with such voting instructions.

Holders who have delivered voting instructions agree that such voting instruction may, at the request of the Company, be disclosed by the Company, for purposes of compliance with Belgian law, in connection with any meeting of the holders of the shares, whether prior, during or after such meeting.

Inspection

The depositary shall make available for inspection by holders, as promptly as practicable after receipt thereof, any reports and communications, including any proxy soliciting materials, received from the Company which are both (a) received by the depositary, the custodian, or the nominee of either of them as the holder of the deposited property and (b) made generally available to the holders of such deposited property by the Company.

Fees and charges

Pursuant to the terms of the deposit agreement, the holders of ADSs will be required to pay the following fees:

Service	Fees
·Issuance of ADSs	Up to U.S. $0.05 per ADS issued
·Cancellation of ADSs	Up to U.S. $0.05 per ADS canceled
·Distribution of cash dividends or other cash distributions	Up to U.S. $0.05 per ADS held
·Distribution of ADSs pursuant to stock dividends, free stock distributions or exercise of rights.	Up to U.S. $0.05 per ADS held
·Distribution of securities other than ADSs or rights to purchase additional ADSs	Up to U.S. $0.05 per ADS held
·ADS Services	Up to U.S. $0.05 per ADS held on the applicable record date(s) established by the depositary

The holders of ADSs will also be responsible to pay certain fees and expenses incurred by the depositary and certain taxes and governmental charges such as:

· taxes (including applicable interest and penalties) and other governmental charges;

· the registration fees as may from time to time be in effect for the registration of ordinary shares on the share register and applicable to transfers of ordinary shares to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;

· certain cable, telex and facsimile transmission and delivery expenses;

· the expenses and charges incurred by the depositary in the conversion of foreign currency;

· the fees and expenses incurred by the depositary in connection with compliance with exchange control regulations and other regulatory requirements applicable to ordinary shares, ADSs and ADRs; and

· the fees and expenses incurred by the depositary, the custodian, or any nominee in connection with the servicing or delivery of deposited property.

ADS fees and charges payable upon (i) deposit of ordinary shares against issuance of ADSs and (ii) surrender of ADSs for cancellation and withdrawal of ordinary shares are charged to the person to whom the ADSs are delivered (in the case of ADS issuances) and to the person who delivers the ADSs for cancellation (in the case of ADS cancellations). In the case of ADSs issued by the depositary into the Depositary Trust Company, or DTC, or presented to the depositary via DTC, the ADS issuance and cancellation fees and charges may be deducted from distributions made through DTC, and may be charged to the DTC participant(s) receiving the ADSs or the DTC participant(s) surrendering the ADSs for cancellation, as the case may be, on behalf of the beneficial owner(s) and will be charged by the DTC participant(s) to the account(s) of the applicable beneficial owner(s) in accordance with the procedures and practices of the DTC participant(s) as in effect at the time. ADS fees and charges in respect of distributions and the ADS service fee are charged to the holders as of the applicable ADS record date. In the case of distributions of cash, the amount of the applicable ADS fees and charges is deducted from the funds being distributed. In the case of (i) distributions other than cash and (ii) the ADS service fee, holders as of the ADS record date will be invoiced for the amount of the ADS fees and charges and such ADS fees and charges may be deducted from distributions made to holders of ADSs. For ADSs held through DTC, the ADS fees and charges for distributions other than cash and the ADS service fee may be deducted from distributions made through DTC, and may be charged to the DTC participants in accordance with the procedures and practices prescribed by DTC and the DTC participants in turn charge the amount of such ADS fees and charges to the beneficial owners for whom they hold ADSs.

In the event of refusal to pay the depositary fees, the depositary may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder. Note that the fees and charges you may be required to pay may vary over time and may be changed by us and by the depositary. You will receive prior notice of such changes. The depositary may reimburse us for certain expenses incurred by us in respect of the ADR program, by making available a portion of the ADS fees charged in respect of the ADR program or otherwise, upon such terms and conditions as we and the depositary agree from time to time.

Listing

The ADSs are listed on the Nasdaq Global Select Market under the symbol “GLPG.” Our ordinary shares are trading on Euronext Amsterdam and Euronext Brussels under the symbol “GLPG.”

Transfer agent and registrar

The transfer agent and registrar for the ADSs is Citibank, N.A.

EX-4.43

Confidential

RSU/LTIP 2021

Exhibit 4.43

Restricted Stock Units/Long-Term Incentive Plan 2021 – Participants’ Guide

This multi-year Plan is intended to provide certain members of the management board and certain employees of Galapagos the opportunity to receive Restricted Stock Units as a long-term incentive. Its purpose is to retain and encourage Participants to contribute to the performance of Galapagos and its Affiliates by aligning their financial interests with those of the shareholders.

1 Definitions

When used in this document, the following terms shall have the meaning ascribed to them as indicated below, unless expressly indicated otherwise:

Acceptance Form	the form, which may be electronic, in which the Participant confirms, among other things, receipt of the Offer from Galapagos and the Restricted Stock Units;
Acceptance Period	the period during which a Participant must return the completed Acceptance Form to Galapagos, as indicated in the Offer Notification;
Affiliate	any affiliated company (“société liée” / “verbonden vennootschap”) as defined under Article 11 of the Belgian Companies Code and 1:20 of the Code of Companies and Associations (as may be amended from time to time) and any other entity in which Galapagos has a direct or indirect interest and which is designated by the Board as being an Affiliate for purposes of this Plan;
Board	the supervisory board of Galapagos;
Code of Dealing	the code of dealing of Galapagos, as amended from time to time;
Data Controller	Galapagos;
Data Processor	any third party designated by the Data Controller to process Personal Data on behalf of the Data Controller in accordance with Schedule 1 for the implementation, administration and management of the Plan and the Share register and RSU register in electronic form;

Confidential

RSU/LTIP 2021

Galapagos	Galapagos NV/SA with its registered office at Generaal De Wittelaan L11, Bus A3 2800 Mechelen, Belgium;
GDPR	Regulation 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation);
Offer	the offer of Restricted Stock Units by Galapagos to the Participant as set out in the Offer Notification;
Offer Date	has the meaning given to it in the Offer Notification;
Offer Notification	the notification, either sent via email or made available through the Online Tool, whereby Galapagos communicates the details of the Offer;
Online Tool	a secured website allowing the Participants to have online access to all information relating to their RSUs;
Participant	a member of the management board of Galapagos or an employee, in each case as designated by Galapagos, who received an Offer Notification, or any Successor to whom Restricted Stock Units have been transferred in accordance with these terms and conditions;
Personal Data	each item of information relating to an identified or identifiable Participant defined as personal data pursuant to the GDPR;
Plan	this Restricted Stock Units/Long-Term Incentive Plan 2021;
RSU or Restricted Stock Unit	the right to receive from Galapagos one existing and/or new Share per RSU and/or a payment in cash per RSU, in accordance with these terms and conditions;
Share	an existing or newly issued ordinary share of Galapagos;
Successor	the successor of a Participant as determined under the applicable law of succession and/or the persons designated by a Participant, in accordance with the applicable law of succession, to inherit the rights of the Participant under the Plan after the death of the Participant;

2

Confidential

RSU/LTIP 2021

Vesting	a Participant becoming unconditionally entitled to receive one Galapagos Share per Restricted Stock Unit or an equivalent amount in cash, subject to the terms and conditions of this Plan;
Vesting Date	has the meaning given to it in the Offer Notification, it being understood that Vesting Date shall be construed to mean the plural where necessary.

2 Acceptance of the Restricted Stock Units

The Plan forms part of an agreement between the Participant and Galapagos. By accepting the Offer, Participants unconditionally agree to be bound by the contents of this document, the Offer Notification and the Acceptance Form.

A Participant is free to accept or refuse the Offer. The Participant can only accept all the Restricted Stock Units offered in the Offer Notification. Partial acceptance of these terms and conditions shall be deemed to constitute a refusal of the Offer as a whole.

The mode of acceptance of the Offer is set out in the Offer Notification, including the deadline for accepting the Offer. Failure to comply with the mode of acceptance of the Offer shall be deemed to constitute a refusal of the Offer as a whole.

The Restricted Stock Units are offered for no consideration.

3 Nature and characteristics of the Restricted Stock Units

3.1 No shareholder rights

Restricted Stock Units do not confer any shareholder rights. For example, they do not confer any voting or dividend rights or the right to attend shareholders’ meetings.

3.2 Transferability

Except for transfers as a result of death (see Clause 7.2), Restricted Stock Units may not be transferred to any third party.

If the Participant is a legal person and if such Participant is going to cease to exist (for example in the event of a dissolution), Galapagos and such Participant will agree in due time on how to deal with such situation.

Restricted Stock Units shall not be encumbered with any security, pledge or other right.

4 Vesting of the Restricted Stock Units

The Restricted Stock Units will vest on the Vesting Date specified in the Offer Notification, subject to the service rules of Clause 7.  

If a Participant takes a sabbatical leave of a period exceeding six months, the relevant Vesting Date shall be deferred with a period of one year.

3

Confidential

RSU/LTIP 2021

In the event of Vesting and subject to these terms and conditions, Galapagos will, at its own discretion:

(i) deliver one Share per Restricted Stock Unit held by the Participant, as soon as reasonably practicable following the Vesting Date; or

(ii) make a payment in cash to the Participant of an amount equivalent to the volume weighted average price of the Share on Euronext Brussels over the 30-calendar day period preceding the Vesting Date multiplied by the number of Restricted Stock Units, as soon as reasonably practicable following the Vesting Date.

The terms of such delivery and/or payment will be determined by Galapagos in advance of the Vesting Date and will be communicated in due time to each Participant, who will be required to comply with such terms.

5 Nature and characteristics of the underlying Shares

5.1 General

If Galapagos elects to deliver Shares upon Vesting of the Restricted Stock Units, these Shares shall be, at the discretion of Galapagos:

(i) existing ordinary Shares of Galapagos; or

(ii) new Shares to be issued in consideration for the payment by each Participant of a subscription price of 0.01 euro per Share.

Galapagos will, at its discretion, deliver Shares in dematerialised (electronic or book-entry) form or in registered form.

The increase in Galapagos' share capital, if any, corresponding to the issue of new Shares in the framework of the Plan will be recorded by notarial deed. The Participants shall be required to comply with the necessary formalities applicable to the capital increase. These will be communicated in due time in advance of the Vesting.

5.2 Dividends

The Shares delivered upon vesting of the Restricted Stock Units give the right to the dividends paid on such Shares decided by Galapagos after the Vesting Date.

5.3 Transferability

Unless agreed otherwise between the Participant and Galapagos, the Shares delivered upon vesting of the Restricted Stock Units are not subject to any transfer restrictions under the rules of the Plan.

Participants may be offered the choice to conclude a lock-up agreement with Galapagos for a two-year period starting on the Vesting Date, in respect of all or part of the Shares, as this may enable a more beneficial tax and/or social security treatment in some countries. That choice will need to be made before the Vesting Date. Galapagos will contact the Participants in due time before that date to provide them with the necessary information and prepare the lock-up agreement, if the Participants choose to conclude it.

6 Expenses and taxes

6.1 All costs related to the attribution of the Restricted Stock Units and the delivery of the underlying Shares will be borne by Galapagos.

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6.2 However, Participants will be solely responsible for any taxes (including but not limited to income taxes, capital gains taxes, stock exchange taxes and taxes on securities accounts) and personal social security charges due in connection with (i) the Offer and Vesting of the Restricted Stock Units and (ii) the delivery and ownership of the underlying Shares, in accordance with applicable tax and social security laws.

The Participants shall also pay a subscription price of 0.01 euro per Share if Galapagos elects to deliver new Shares, in accordance with Clause 5.1.

6.3 Galapagos may either (i) require that the Participants pay, or (ii) withhold from any payment or delivery of Shares at any time any income or social security taxes that are required to be withheld under any applicable law, rule or regulation.

7 Situation upon termination of mandate

7.1 End of employment contract or mandate as self-employed

If a Participant is dismissed, resigns, retires or if his/her employment or management agreement with Galapagos comes to an end and/or is not renewed, all Restricted Stock Units held by the Participant on the date of his/her dismissal, resignation, retirement or the end of employment or management agreement and that have not yet vested will automatically become null and void.

Shares already held by a Participant, as a result of the Vesting of Restricted Stock Units before the date of his/her dismissal, resignation, retirement or the end of employment or management agreement, will not be affected.

7.2 Death or permanent disability

In the event of permanent disability or death, all Restricted Stock Units shall vest in full on the next Vesting Date (or on such earlier date as determined by Galapagos) and the underlying Shares shall be transferred to the Participant, or his/her Successor in the event of death.

The notion of “permanent disability” is to be defined by reference to the law governing the employment relationship and the applicable social security regime, or alternatively, by the pension rules in the relevant jurisdiction or, if applicable, management contract of the Participant.

In the event of a Participant's death, any Successor acquiring the Restricted Stock Units shall inform Galapagos of the Participant's death as soon as possible.

8 Amendment to the capital structure and anti-dilution measures

8.1 Corporate changes

Galapagos expressly reserves the right to proceed with corporate changes that have an impact on its capital, such as capital increases, including by incorporation of reserves in the capital, capital decreases, issuance of convertible bonds, subscription rights or options, stock splits or reverse stock splits, combinations or reclassifications of the Shares, mergers and (partial) demergers, as well as the right to amend the clauses in the articles of association governing the allocation of profits or liquidation boni.

In the event that any such corporate change would have a materially unfavourable impact on the Restricted Stock Units, Galapagos may decide in its sole discretion to adjust the Plan

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for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the Shareholders' Meeting of Galapagos. The terms of such adjustment will be communicated to the Participants in due time.

8.2 Public takeover bid – Change of control

In any of the following events:

(i)the FSMA publishes a notice stating that a public takeover bid has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on public takeover bids (or any succeeding provision);

(ii)the FSMA publishes a notice stating that a squeeze-out has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on squeeze-outs (or any succeeding provision); or

(iii)the control or the absence of control exercised over Galapagos changes (the notion of control being defined by Articles 1:14 to 1:18 of the Belgian Code of Companies and Associations (or any succeeding provisions)),

Galapagos may decide in its sole discretion to adjust the Plan for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the shareholders' meeting of Galapagos. Such adjustment may, without limitation and at the discretion of Galapagos, consist in the cancellation of the Restricted Stock Units and the payment of their fair market value to the Participants or in the accelerated Vesting of the Restricted Stock Units.

9 Insider dealing rules

The Participants shall comply at all times with the Code of Dealing, as well as applicable laws prohibiting insider dealing.

10 Electronic register, electronic evidence and electronic delivery

10.1 Electronic Share register and register of Restricted Stock Units

The Restricted Stock Units and Shares resulting from the vesting of such Restricted Stock Units will be recorded in a register, which may be in electronic form and the maintenance of which may be delegated by Galapagos to a third party.

10.2 Electronic evidence

Electronic approvals, instructions, orders, statements and communications between a Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan will have the same legal status as written approvals, instructions, orders, statements and communications. The written recording or the written reproduction of electronic approvals, instructions, orders, statements and communications received by Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, will constitute conclusive evidence between the Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, unless evidence to the contrary is provided by the Participant.

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10.3 Electronic delivery

All subsequent information relating to the Restricted Stock Units will be communicated by electronic means, including e-mails to the Participants and postings on Galapagos’ website or intranet. Such information may include, amongst others, financial information concerning Galapagos. In order to access such information, Participants will be required to access Galapagos e-mail system, website and/or intranet, unless otherwise specified by Galapagos. By returning the Acceptance Form, Participants are deemed to acknowledge that they have such access to the e-mail system of Galapagos, as well as to Galapagos’ website and intranet and ordinarily use them in the ordinary course of their mandate. Participants may obtain paper copies of any such information by submitting a request to receive paper copies to incentives@glpg.com.

11 Modification of the Plan

Galapagos may unilaterally modify at any time the practical and/or accessory modalities of the Plan. It may also unilaterally modify the Plan when such modifications are required to comply with any change in legislation.

12 Nature of the Plan

Notwithstanding any provisions to the contrary included in the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan:

(i) the Offer of Restricted Stock Units and/or the subsequent delivery of Shares to the Participant in the framework of the Plan is unrelated to his/her pension rights or pension claims, if any, unless specifically provided otherwise in applicable legislation or the terms and conditions of the applicable pension plan;

(ii) the Plan, the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan do not confer upon the Participant any right to continued employment or other contractual relationship for any period of specific duration or interfere with or otherwise restrict in any way the rights of Galapagos or its Affiliates to terminate the Participant’s employment or other contractual relationship according to the applicable regulations in respect of termination thereof;

(iii) the Offer of Restricted Stock Units cannot be considered as a right acquired for the future; and

(iv) any rights and entitlements pursuant to this Plan are granted on a discretionary basis. Repeated grants do not entitle any Participant to any future grant. Grants remain in the complete discretion of Galapagos. In particular, Galapagos reserves the right to determine the scope of beneficiaries and the conditions of the Plan in relation to any further grant.

13 Privacy and processing of Personal Data

See Schedule 1.

14 Confidentiality

The existence, subject matter and terms of the Plan (or any agreement entered into pursuant to the Plan) are confidential and the Participants are prohibited from disclosing all or any

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part of the Plan, or its existence, at any time, unless the disclosure is required by law or by any court of competent jurisdiction.

15 Severability

If any provision in this document is held to be illegal, invalid or unenforceable, in whole or in part, under any applicable law, that provision will be deemed not to form part of this document, and the legality, validity or enforceability of the remainder of this document will not be affected.

16 US Restrictions

The RSUs and the Shares delivered upon Vesting (if any) have not been and will not be registered under the U.S. Securities Act of 1933 (as amended, the “Securities Act”) and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons except in certain transactions exempt from the registration requirements of the Securities Act. Terms used in this paragraph have the meanings given to them by Regulation S under the Securities Act.

Furthermore, the Shares delivered upon Vesting (if any) are deemed to be restricted securities in accordance with Rule 144 under the Securities Act. As such, the Shares may not be resold on a U.S. market or exchange (including Nasdaq) for a period of six months after Vesting.

17 Applicable law - Jurisdiction

The Restricted Stock Units and these terms and conditions are governed by Belgian law.

Any dispute arising out of or in connection with the Plan, including the Restricted Stock Units, the Offer Notification, the Acceptance Form and the present terms and conditions will be settled by the courts set out in the Offer Notification.

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Schedule 1 – Privacy and processing of Personal Data

To enable the proper set-up and management of the Plan and the RSU register, Personal Data about each Participant will need to be collected and used. This Schedule sets out the obligations of Galapagos and the rights of Participants regarding any such collection and use, and provides the legally required information in this respect.

1 Identity of the person responsible for your Personal Data

Galapagos is the so-called “Data Controller”, which is responsible for the collection and processing of Personal Data as is necessary for the setting-up and management of the Plan and the RSU register of Galapagos in electronic form.

2 Why and how Personal Data is collected and used

The Personal Data will either be collected via e-mail, the Online Tool or Galapagos’ HR IS system. It will be used exclusively for the purposes of the administration of the Plan and the maintenance of the RSU register of Galapagos in electronic form.

The Personal Data collected in the context of the Plan and the RSU Register will be stored for a period of ten years.

The Data Controller and any Data Processor will collect and process the Participants’ Personal Data in accordance with the GDPR and this Schedule.

3 Nature of the Personal Data

The following Personal Data relating to the Participants will be collected and used:

(i) their contact details (e.g. names*, private/professional* (e-mail) addresses/phone numbers);

(ii) electronic identification data;

(iii) personal characteristics (i.e. date of birth*);

(iv) financial data (e.g. details regarding bank account); and

(v) details of all information relating to Restricted Stock Units awarded, cancelled, vested, unvested or outstanding.

4 Other persons having access to the Personal Data and purpose thereof

The Data Controller can transfer the Personal Data to the following categories of recipients:

(i) the provider of the Online Tool acting as Data Processor;  

(ii) payroll operators acting as Data Processors;

(iii) regulatory authorities for the purposes of complying with legal obligations in connection with the Plan; and

(iv) any member of the Galapagos group for the administration and management of the Plan.

Such recipients may be located in jurisdictions outside the European Economic Area (“EEA”) that may not provide an adequate level of personal data protection. The Data Controller

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relies upon standard contractual clauses with the relevant data importer to transfer the data to such jurisdictions, a copy hereof can be obtained through dpo@glpg.com.

5 Legal basis allowing Galapagos to collect and use Personal Data

The processing of Personal Data of the Participants by the Data Controller in the context of this Plan is necessary for the performance of the contractual arrangements between the Participants and the Data Controller referred to in the introduction of this Plan (i.e. providing certain members of the management board and certain employees of Galapagos the opportunity to receive Restricted Stock Units as an incentive). Failure by the Participant to provide the necessary Personal Data will result in the impossibility for Galapagos to perform part of its contractual arrangements towards the Participants.

The Data Controller can also process Personal Data of the Participants to comply with its legal obligations towards the regulatory authorities.

6 Rights of the Participants

The Participant can exercise his/her right to request access to and rectification or, in certain circumstances, erasure of his/her Personal Data or restriction of processing concerning the Participant or to object to processing as well as the right to data portability by sending a written request to dpo@glpg.com.

If Participants are not satisfied with how Galapagos processes their Personal Data, they may contact Galapagos through dpo@glpg.com. They also have the right to make a complaint to the Belgian Data Protection Authority.

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Exhibit 4.44

Restricted Stock Units/Retention Plan 2021 – Participants’ Guide

This multi-year Plan is intended to provide certain members of the management board and certain employees of Galapagos the opportunity to receive Restricted Stock Units as a long-term incentive. Its purpose is to retain and encourage Participants to contribute to the performance of Galapagos and its Affiliates by aligning their financial interests with those of the shareholders.

1 Definitions

When used in this document, the following terms shall have the meaning ascribed to them as indicated below, unless expressly indicated otherwise:

Acceptance Form	the form, which may be electronic, in which the Participant confirms, among other things, receipt of the Offer from Galapagos and the Restricted Stock Units;
Acceptance Period	the period during which a Participant must return the completed Acceptance Form to Galapagos, as indicated in the Offer Notification;
Affiliate	any affiliated company (“société liée” / “verbonden vennootschap”) as defined under Article 11 of the Belgian Companies Code and 1:20 of the Code of Companies and Associations (as may be amended from time to time) and any other entity in which Galapagos has a direct or indirect interest and which is designated by the Board as being an Affiliate for purposes of this Plan;
Board	the supervisory board of Galapagos;
Code of Dealing	the code of dealing of Galapagos, as amended from time to time;
Data Controller	Galapagos;
Data Processor	any third party designated by the Data Controller to process Personal Data on behalf of the Data Controller in accordance with Schedule 1 for the implementation, administration and management of the Plan and the Share register and RSU register in electronic form;

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Galapagos	Galapagos NV/SA with its registered office at Generaal De Wittelaan L11, Bus A3 2800 Mechelen, Belgium;
GDPR	Regulation 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation);
Offer	the offer of Restricted Stock Units by Galapagos to the Participant as set out in the Offer Notification;
Offer Date	has the meaning given to it in the Offer Notification;
Offer Notification	the notification, either sent via email or made available through the Online Tool, whereby Galapagos communicates the details of the Offer;
Online Tool	a secured website allowing the Participants to have online access to all information relating to their RSUs;
Participant	a member of the management board of Galapagos or an employee, in each case as designated by Galapagos, who received an Offer Notification, or any Successor to whom Restricted Stock Units have been transferred in accordance with these terms and conditions;
Personal Data	each item of information relating to an identified or identifiable Participant defined as personal data pursuant to the GDPR;
Plan	this Restricted Stock Units/Retention Plan 2021;
RSU or Restricted Stock Unit	the right to receive from Galapagos one existing and/or new Share per RSU and/or a payment in cash per RSU, in accordance with these terms and conditions;
Share	an existing or newly issued ordinary share of Galapagos;
Successor	the successor of a Participant as determined under the applicable law of succession and/or the persons designated by a Participant, in accordance with the applicable law of succession, to inherit the rights of the Participant under the Plan after the death of the Participant;
Vesting	a Participant becoming unconditionally entitled to receive one Galapagos Share per Restricted Stock Unit or an equivalent amount in cash, subject to the terms and conditions of this Plan;

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Vesting Date has the meaning given to it in the Offer Notification, it being understood that Vesting Date shall be construed to mean the plural where necessary.

2 Acceptance of the Restricted Stock Units

The Plan forms part of an agreement between the Participant and Galapagos. By accepting the Offer, Participants unconditionally agree to be bound by the contents of this document, the Offer Notification and the Acceptance Form.

A Participant is free to accept or refuse the Offer. The Participant can only accept all the Restricted Stock Units offered in the Offer Notification. Partial acceptance of these terms and conditions shall be deemed to constitute a refusal of the Offer as a whole.

The mode of acceptance of the Offer is set out in the Offer Notification, including the deadline for accepting the Offer. Failure to comply with the mode of acceptance of the Offer shall be deemed to constitute a refusal of the Offer as a whole.

The Restricted Stock Units are offered for no consideration.

3 Nature and characteristics of the Restricted Stock Units

3.1 No shareholder rights

Restricted Stock Units do not confer any shareholder rights. For example, they do not confer any voting or dividend rights or the right to attend shareholders’ meetings.

3.2 Transferability

Except for transfers as a result of death (see Clause 7.2), Restricted Stock Units may not be transferred to any third party.

If the Participant is a legal person and if such Participant is going to cease to exist (for example in the event of a dissolution), Galapagos and such Participant will agree in due time on how to deal with such situation.

Restricted Stock Units shall not be encumbered with any security, pledge or other right.

4 Vesting of the Restricted Stock Units

The Restricted Stock Units will vest on the Vesting Date specified in the Offer Notification, subject to the service rules of Clause 7.  

If a Participant takes a sabbatical leave of a period exceeding six months, the relevant Vesting Date shall be deferred with a period of one year.

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In the event of Vesting and subject to these terms and conditions, Galapagos will, at its own discretion:

(i) deliver one Share per Restricted Stock Unit held by the Participant, as soon as reasonably practicable following the Vesting Date; or

(ii) make a payment in cash to the Participant of an amount equivalent to the volume weighted average price of the Share on Euronext Brussels over the 30-calendar day period preceding the Vesting Date multiplied by the number of Restricted Stock Units, as soon as reasonably practicable following the Vesting Date.

The terms of such delivery and/or payment will be determined by Galapagos in advance of the Vesting Date and will be communicated in due time to each Participant, who will be required to comply with such terms.

5 Nature and characteristics of the underlying Shares

5.1 General

If Galapagos elects to deliver Shares upon Vesting of the Restricted Stock Units, these Shares shall be, at the discretion of Galapagos:

(i) existing ordinary Shares of Galapagos; or

(ii) new Shares to be issued in consideration for the payment by each Participant of a subscription price of 0.01 euro per Share.

Galapagos will, at its discretion, deliver Shares in dematerialised (electronic or book-entry) form or in registered form.

The increase in Galapagos' share capital, if any, corresponding to the issue of new Shares in the framework of the Plan will be recorded by notarial deed. The Participants shall be required to comply with the necessary formalities applicable to the capital increase. These will be communicated in due time in advance of the Vesting.

5.2 Dividends

The Shares delivered upon vesting of the Restricted Stock Units give the right to the dividends paid on such Shares decided by Galapagos after the Vesting Date.

5.3 Transferability

Unless agreed otherwise between the Participant and Galapagos, the Shares delivered upon vesting of the Restricted Stock Units are not subject to any transfer restrictions under the rules of the Plan.

Participants may be offered the choice to conclude a lock-up agreement with Galapagos for a two-year period starting on the Vesting Date, in respect of all or part of the Shares, as this may enable a more beneficial tax and/or social security treatment in some countries. That choice will need to be made before the Vesting Date. Galapagos will contact the Participants in due time before that date to provide them with the necessary information and prepare the lock-up agreement, if the Participants choose to conclude it.

6 Expenses and taxes

6.1 All costs related to the attribution of the Restricted Stock Units and the delivery of the underlying Shares will be borne by Galapagos.

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6.2 However, Participants will be solely responsible for any taxes (including but not limited to income taxes, capital gains taxes, stock exchange taxes and taxes on securities accounts) and personal social security charges due in connection with (i) the Offer and Vesting of the Restricted Stock Units and (ii) the delivery and ownership of the underlying Shares, in accordance with applicable tax and social security laws.

The Participants shall also pay a subscription price of 0.01 euro per Share if Galapagos elects to deliver new Shares, in accordance with Clause 5.1.

6.3 Galapagos may either (i) require that the Participants pay, or (ii) withhold from any payment or delivery of Shares at any time any income or social security taxes that are required to be withheld under any applicable law, rule or regulation.

7 Situation upon termination of mandate

7.1 End of employment contract or mandate as self-employed

If a Participant is dismissed, resigns, retires or if his/her employment or management agreement with Galapagos comes to an end and/or is not renewed, all Restricted Stock Units held by the Participant on the date of his/her dismissal, resignation, retirement or the end of employment or management agreement and that have not yet vested will automatically become null and void.

Shares already held by a Participant, as a result of the Vesting of Restricted Stock Units before the date of his/her dismissal, resignation, retirement or the end of employment or management agreement, will not be affected.

7.2 Death or permanent disability

In the event of permanent disability or death, all Restricted Stock Units shall vest in full on the next Vesting Date (or on such earlier date as determined by Galapagos) and the underlying Shares shall be transferred to the Participant, or his/her Successor in the event of death.

The notion of “permanent disability” is to be defined by reference to the law governing the employment relationship and the applicable social security regime, or alternatively, by the pension rules in the relevant jurisdiction or, if applicable, management contract of the Participant.

In the event of a Participant's death, any Successor acquiring the Restricted Stock Units shall inform Galapagos of the Participant's death as soon as possible.

8 Amendment to the capital structure and anti-dilution measures

8.1 Corporate changes

Galapagos expressly reserves the right to proceed with corporate changes that have an impact on its capital, such as capital increases, including by incorporation of reserves in the capital, capital decreases, issuance of convertible bonds, subscription rights or options, stock splits or reverse stock splits, combinations or reclassifications of the Shares, mergers and (partial) demergers, as well as the right to amend the clauses in the articles of association governing the allocation of profits or liquidation boni.

In the event that any such corporate change would have a materially unfavourable impact on the Restricted Stock Units, Galapagos may decide in its sole discretion to adjust the Plan

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for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the shareholders' meeting of Galapagos. The terms of such adjustment will be communicated to the Participants in due time.

8.2 Public takeover bid – Change of control

In any of the following events:

(i)the FSMA publishes a notice stating that a public takeover bid has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on public takeover bids (or any succeeding provision);

(ii)the FSMA publishes a notice stating that a squeeze-out has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on squeeze-outs (or any succeeding provision); or

(iii)the control or the absence of control exercised over Galapagos changes (the notion of control being defined by Articles 1:14 to 1:18 of the Belgian Code of Companies and Associations (or any succeeding provisions)),

Galapagos may decide in its sole discretion to adjust the Plan for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the shareholders' meeting of Galapagos. Such adjustment may, without limitation and at the discretion of Galapagos, consist in the cancellation of the Restricted Stock Units and the payment of their fair market value to the Participants or in the accelerated Vesting of the Restricted Stock Units.

9 Insider dealing rules

The Participants shall comply at all times with the Code of Dealing, as well as applicable laws prohibiting insider dealing.

10 Electronic register, electronic evidence and electronic delivery

10.1 Electronic Share register and register of Restricted Stock Units

The Restricted Stock Units and Shares resulting from the vesting of such Restricted Stock Units will be recorded in a register, which may be in electronic form and the maintenance of which may be delegated by Galapagos to a third party.

10.2 Electronic evidence

Electronic approvals, instructions, orders, statements and communications between a Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan will have the same legal status as written approvals, instructions, orders, statements and communications. The written recording or the written reproduction of electronic approvals, instructions, orders, statements and communications received by Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, will constitute conclusive evidence between the Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, unless evidence to the contrary is provided by the Participant.

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10.3 Electronic delivery

All subsequent information relating to the Restricted Stock Units will be communicated by electronic means, including e-mails to the Participants and postings on Galapagos’ website or intranet. Such information may include, amongst others, financial information concerning Galapagos. In order to access such information, Participants will be required to access Galapagos e-mail system, website and/or intranet, unless otherwise specified by Galapagos. By returning the Acceptance Form, Participants are deemed to acknowledge that they have such access to the e-mail system of Galapagos, as well as to Galapagos’ website and intranet and ordinarily use them in the ordinary course of their mandate. Participants may obtain paper copies of any such information by submitting a request to receive paper copies to incentives@glpg.com.

11 Modification of the Plan

Galapagos may unilaterally modify at any time the practical and/or accessory modalities of the Plan. It may also unilaterally modify the Plan when such modifications are required to comply with any change in legislation.

12 Nature of the Plan

Notwithstanding any provisions to the contrary included in the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan:

(i) the Offer of Restricted Stock Units and/or the subsequent delivery of Shares to the Participant in the framework of the Plan is unrelated to his/her pension rights or pension claims, if any, unless specifically provided otherwise in applicable legislation or the terms and conditions of the applicable pension plan;

(ii) the Plan, the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan do not confer upon the Participant any right to continued employment or other contractual relationship for any period of specific duration or interfere with or otherwise restrict in any way the rights of Galapagos or its Affiliates to terminate the Participant’s employment or other contractual relationship according to the applicable regulations in respect of termination thereof;

(iii) the Offer of Restricted Stock Units cannot be considered as a right acquired for the future; and

(iv) any rights and entitlements pursuant to this Plan are granted on a discretionary basis. Repeated grants do not entitle any Participant to any future grant. Grants remain in the complete discretion of Galapagos. In particular, Galapagos reserves the right to determine the scope of beneficiaries and the conditions of the Plan in relation to any further grant.

13 Privacy and processing of Personal Data

See Schedule 1.

14 Confidentiality

The existence, subject matter and terms of the Plan (or any agreement entered into pursuant to the Plan) are confidential and the Participants are prohibited from disclosing all or any

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part of the Plan, or its existence, at any time, unless the disclosure is required by law or by any court of competent jurisdiction.

15 Severability

If any provision in this document is held to be illegal, invalid or unenforceable, in whole or in part, under any applicable law, that provision will be deemed not to form part of this document, and the legality, validity or enforceability of the remainder of this document will not be affected.

16 US Restrictions

The RSUs and the Shares delivered upon Vesting (if any) have not been and will not be registered under the U.S. Securities Act of 1933 (as amended, the “Securities Act”) and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons except in certain transactions exempt from the registration requirements of the Securities Act. Terms used in this paragraph have the meanings given to them by Regulation S under the Securities Act.

Furthermore, the Shares delivered upon Vesting (if any) are deemed to be restricted securities in accordance with Rule 144 under the Securities Act. As such, the Shares may not be resold on a U.S. market or exchange (including Nasdaq) for a period of six months after Vesting.

17 Applicable law - Jurisdiction

The Restricted Stock Units and these terms and conditions are governed by Belgian law.

Any dispute arising out of or in connection with the Plan, including the Restricted Stock Units, the Offer Notification, the Acceptance Form and the present terms and conditions will be settled by the courts set out in the Offer Notification.

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Schedule 1 – Privacy and processing of Personal Data

To enable the proper set-up and management of the Plan and the RSU register, Personal Data about each Participant will need to be collected and used. This Schedule sets out the obligations of Galapagos and the rights of Participants regarding any such collection and use, and provides the legally required information in this respect.

1 Identity of the person responsible for your Personal Data

Galapagos is the so-called “Data Controller”, which is responsible for the collection and processing of Personal Data as is necessary for the setting-up and management of the Plan and the RSU register of Galapagos in electronic form.

2 Why and how Personal Data is collected and used

The Personal Data will either be collected via email, the Online Tool or Galapagos’ HR IS system. It will be used exclusively for the purposes of the administration of the Plan and the maintenance of the RSU register of Galapagos in electronic form.

The Personal Data collected in the context of the Plan and the RSU Register will be stored for a period of ten years.

The Data Controller and any Data Processor will collect and process the Participants’ Personal Data in accordance with the GDPR and this Schedule.

3 Nature of the Personal Data

The following Personal Data relating to the Participants will be collected and used:

(i) their contact details (e.g. names*, private/professional* (e-mail) addresses/phone numbers);

(ii) electronic identification data;

(iii) personal characteristics (i.e. date of birth*);

(iv) financial data (e.g. details regarding bank account); and

(v) details of all information relating to Restricted Stock Units awarded, cancelled, vested, unvested or outstanding.

4 Other persons having access to the Personal Data and purpose thereof

The Data Controller can transfer the Personal Data to the following categories of recipients:

(i) the provider of the Online Tool acting as Data Processor;  

(ii) payroll operators acting as Data Processors;

(iii) regulatory authorities for the purposes of complying with legal obligations in connection with the Plan; and

(iv) any member of the Galapagos group for the administration and management of the Plan.

Such recipients may be located in jurisdictions outside the European Economic Area (“EEA”) that may not provide an adequate level of personal data protection. The Data Controller

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relies upon standard contractual clauses with the relevant data importer to transfer the data to such jurisdictions, a copy hereof can be obtained through dpo@glpg.com.

5 Legal basis allowing Galapagos to collect and use Personal Data

The processing of Personal Data of the Participants by the Data Controller in the context of this Plan is necessary for the performance of the contractual arrangements between the Participants and the Data Controller referred to in the introduction of this Plan (i.e. providing certain members of the management board and certain employees of Galapagos the opportunity to receive Restricted Stock Units as an incentive). Failure by the Participant to provide the necessary Personal Data will result in the impossibility for Galapagos to perform part of its contractual arrangements towards the Participants.

The Data Controller can also process Personal Data of the Participants to comply with its legal obligations towards the regulatory authorities.

6 Rights of the Participants

The Participant can exercise his/her right to request access to and rectification or, in certain circumstances, erasure of his/her Personal Data or restriction of processing concerning the Participant or to object to processing as well as the right to data portability by sending a written request to dpo@glpg.com.

If Participants are not satisfied with how Galapagos processes their Personal Data, they may contact Galapagos through dpo@glpg.com. They also have the right to make a complaint to the Belgian Data Protection Authority.

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EX-4.45

Confidential

RSU/LTIP 2021

Exhibit 4.45

Restricted Stock Units GSI Replacement Plan 2021 – Participants’ Guide

This Plan is intended to compensate employees who transferred from Gilead to Galapagos (in the framework of Project Butterfly) for the long-term incentive plans within Gilead under which unvested RSU awards lapse upon transfer out of the Gilead group. These employees now have the opportunity to receive a one-time Restricted Stock Units grant from Galapagos.

1 Definitions

When used in this document, the following terms shall have the meaning ascribed to them as indicated below, unless expressly indicated otherwise:

Acceptance Form	the form, which may be electronic, in which the Participant confirms, among other things, receipt of the Offer from Galapagos and the Restricted Stock Units;
Acceptance Period	the period during which a Participant must return the completed Acceptance Form to Galapagos, as indicated in the Offer Notification;
Affiliate	any affiliated company (“société liée” / “verbonden vennootschap”) as defined under Article 11 of the Belgian Companies Code and 1:20 of the Code of Companies and Associations (as may be amended from time to time) and any other entity in which Galapagos has a direct or indirect interest and which is designated by the Board as being an Affiliate for purposes of this Plan;
Board	the supervisory board of Galapagos;
Code of Dealing	the code of dealing of Galapagos, as amended from time to time;
Data Controller	Galapagos;
Data Processor	any third party designated by the Data Controller to process Personal Data on behalf of the Data Controller in accordance with Schedule 1 for the implementation, administration and management of the Plan and the Share register and RSU register in electronic form;

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Galapagos	Galapagos NV/SA with its registered office at Generaal De Wittelaan L11, Bus A3 2800 Mechelen, Belgium;
GDPR	Regulation 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation);
Offer	the offer of Restricted Stock Units by Galapagos to the Participant as set out in the Offer Notification;
Offer Date	has the meaning given to it in the Offer Notification;
Offer Notification	the notification, either sent via email or made available through the Online Tool, whereby Galapagos communicates the details of the Offer;
Online Tool	a secured website allowing the Participants to have online access to all information relating to their RSUs;
Participant	a member of the management board of Galapagos or an employee, in each case as designated by Galapagos, who received an Offer Notification, or any Successor to whom Restricted Stock Units have been transferred in accordance with these terms and conditions;
Personal Data	each item of information relating to an identified or identifiable Participant defined as personal data pursuant to the GDPR;
Plan	this Restricted Stock Units GSI Replacement Plan 2021;
RSU or Restricted Stock Unit	the right to receive from Galapagos one existing and/or new Share per RSU and/or a payment in cash per RSU, in accordance with these terms and conditions;
Share	an existing or newly issued ordinary share of Galapagos;
Successor	the successor of a Participant as determined under the applicable law of succession and/or the persons designated by a Participant, in accordance with the applicable law of succession, to inherit the rights of the Participant under the Plan after the death of the Participant;

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Vesting	a Participant becoming unconditionally entitled to receive one Galapagos Share per Restricted Stock Unit or an equivalent amount in cash, subject to the terms and conditions of this Plan;
Vesting Date	has the meaning given to it in the Offer Notification, it being understood that Vesting Date shall be construed to mean the plural where necessary.

2 Acceptance of the Restricted Stock Units

The Plan forms part of an agreement between the Participant and Galapagos. By accepting the Offer, Participants unconditionally agree to be bound by the contents of this document, the Offer Notification and the Acceptance Form.

A Participant is free to accept or refuse the Offer. The Participant can only accept all the Restricted Stock Units offered in the Offer Notification. Partial acceptance of these terms and conditions shall be deemed to constitute a refusal of the Offer as a whole.

The mode of acceptance of the Offer is set out in the Offer Notification, including the deadline for accepting the Offer. Failure to comply with the mode of acceptance of the Offer shall be deemed to constitute a refusal of the Offer as a whole.

The Restricted Stock Units are offered for no consideration.

3 Nature and characteristics of the Restricted Stock Units

3.1 No shareholder rights

Restricted Stock Units do not confer any shareholder rights. For example, they do not confer any voting or dividend rights or the right to attend shareholders’ meetings.

3.2 Transferability

Except for transfers as a result of death (see Clause 7.2), Restricted Stock Units may not be transferred to any third party.

If the Participant is a legal person and if such Participant is going to cease to exist (for example in the event of a dissolution), Galapagos and such Participant will agree in due time on how to deal with such situation.

Restricted Stock Units shall not be encumbered with any security, pledge or other right.

4 Vesting of the Restricted Stock Units

The Restricted Stock Units will vest on the Vesting Date specified in the Offer Notification, subject to the service rules of Clause 7.  

If a Participant takes a sabbatical leave of a period exceeding six months, the relevant Vesting Date shall be deferred with a period of one year.

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In the event of Vesting and subject to these terms and conditions, Galapagos will, at its own discretion:

(i) deliver one Share per Restricted Stock Unit held by the Participant, as soon as reasonably practicable following the Vesting Date; or

(ii) make a payment in cash to the Participant of an amount equivalent to the volume weighted average price of the Share on Euronext Brussels over the 30-calendar day period preceding the Vesting Date multiplied by the number of Restricted Stock Units, as soon as reasonably practicable following the Vesting Date.

The terms of such delivery and/or payment will be determined by Galapagos in advance of the Vesting Date and will be communicated in due time to each Participant, who will be required to comply with such terms.

5 Nature and characteristics of the underlying Shares

5.1 General

If Galapagos elects to deliver Shares upon Vesting of the Restricted Stock Units, these Shares shall be, at the discretion of Galapagos:

(i) existing ordinary Shares of Galapagos; or

(ii) new Shares to be issued in consideration for the payment by each Participant of a subscription price of 0.01 euro per Share.

Galapagos will, at its discretion, deliver Shares in dematerialised (electronic or book-entry) form or in registered form.

The increase in Galapagos' share capital, if any, corresponding to the issue of new Shares in the framework of the Plan will be recorded by notarial deed. The Participants shall be required to comply with the necessary formalities applicable to the capital increase. These will be communicated in due time in advance of the Vesting.

5.2 Dividends

The Shares delivered upon vesting of the Restricted Stock Units give the right to the dividends paid on such Shares decided by Galapagos after the Vesting Date.

5.3 Transferability

Unless agreed otherwise between the Participant and Galapagos, the Shares delivered upon vesting of the Restricted Stock Units are not subject to any transfer restrictions under the rules of the Plan.

Participants may be offered the choice to conclude a lock-up agreement with Galapagos for a two-year period starting on the Vesting Date, in respect of all or part of the Shares, as this may enable a more beneficial tax and/or social security treatment in some countries. That choice will need to be made before the Vesting Date. Galapagos will contact the Participants in due time before that date to provide them with the necessary information and prepare the lock-up agreement, if the Participants choose to conclude it.

6 Expenses and taxes

6.1 All costs related to the attribution of the Restricted Stock Units and the delivery of the underlying Shares will be borne by Galapagos.

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6.2 However, Participants will be solely responsible for any taxes (including but not limited to income taxes, capital gains taxes, stock exchange taxes and taxes on securities accounts) and personal social security charges due in connection with (i) the Offer and Vesting of the Restricted Stock Units and (ii) the delivery and ownership of the underlying Shares, in accordance with applicable tax and social security laws.

The Participants shall also pay a subscription price of 0.01 euro per Share if Galapagos elects to deliver new Shares, in accordance with Clause 5.1.

6.3 Galapagos may either (i) require that the Participants pay, or (ii) withhold from any payment or delivery of Shares at any time any income or social security taxes that are required to be withheld under any applicable law, rule or regulation.

7 Situation upon termination of mandate

7.1 End of employment contract or mandate as self-employed

If a Participant is dismissed, resigns, retires or if his/her employment or management agreement with Galapagos comes to an end and/or is not renewed, all Restricted Stock Units held by the Participant on the date of his/her dismissal, resignation, retirement or the end of employment or management agreement and that have not yet vested will automatically become null and void.

Shares already held by a Participant, as a result of the Vesting of Restricted Stock Units before the date of his/her dismissal, resignation, retirement or the end of employment or management agreement, will not be affected.

7.2 Death or permanent disability

In the event of permanent disability or death, all Restricted Stock Units shall vest in full on the next Vesting Date (or on such earlier date as determined by Galapagos) and the underlying Shares shall be transferred to the Participant, or his/her Successor in the event of death.

The notion of “permanent disability” is to be defined by reference to the law governing the employment relationship and the applicable social security regime, or alternatively, by the pension rules in the relevant jurisdiction or, if applicable, management contract of the Participant.

In the event of a Participant's death, any Successor acquiring the Restricted Stock Units shall inform Galapagos of the Participant's death as soon as possible.

8 Amendment to the capital structure and anti-dilution measures

8.1 Corporate changes

Galapagos expressly reserves the right to proceed with corporate changes that have an impact on its capital, such as capital increases, including by incorporation of reserves in the capital, capital decreases, issuance of convertible bonds, subscription rights or options, stock splits or reverse stock splits, combinations or reclassifications of the Shares, mergers and (partial) demergers, as well as the right to amend the clauses in the articles of association governing the allocation of profits or liquidation boni.

In the event that any such corporate change would have a materially unfavourable impact on the Restricted Stock Units, Galapagos may decide in its sole discretion to adjust the Plan

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for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the Shareholders' Meeting of Galapagos. The terms of such adjustment will be communicated to the Participants in due time.

8.2 Public takeover bid – Change of control

In any of the following events:

(i)the FSMA publishes a notice stating that a public takeover bid has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on public takeover bids (or any succeeding provision);

(ii)the FSMA publishes a notice stating that a squeeze-out has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on squeeze-outs (or any succeeding provision); or

(iii)the control or the absence of control exercised over Galapagos changes (the notion of control being defined by Articles 1:14 to 1:18 of the Belgian Code of Companies and Associations (or any succeeding provisions)),

Galapagos may decide in its sole discretion to adjust the Plan for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the shareholders' meeting of Galapagos. Such adjustment may, without limitation and at the discretion of Galapagos, consist in the cancellation of the Restricted Stock Units and the payment of their fair market value to the Participants or in the accelerated Vesting of the Restricted Stock Units.

9 Insider dealing rules

The Participants shall comply at all times with the Code of Dealing, as well as applicable laws prohibiting insider dealing.

10 Electronic register, electronic evidence and electronic delivery

10.1 Electronic Share register and register of Restricted Stock Units

The Restricted Stock Units and Shares resulting from the vesting of such Restricted Stock Units will be recorded in a register, which may be in electronic form and the maintenance of which may be delegated by Galapagos to a third party.

10.2 Electronic evidence

Electronic approvals, instructions, orders, statements and communications between a Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan will have the same legal status as written approvals, instructions, orders, statements and communications. The written recording or the written reproduction of electronic approvals, instructions, orders, statements and communications received by Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, will constitute conclusive evidence between the Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, unless evidence to the contrary is provided by the Participant.

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10.3 Electronic delivery

All subsequent information relating to the Restricted Stock Units will be communicated by electronic means, including e-mails to the Participants and postings on Galapagos’ website or intranet. Such information may include, amongst others, financial information concerning Galapagos. In order to access such information, Participants will be required to access Galapagos e-mail system, website and/or intranet, unless otherwise specified by Galapagos. By returning the Acceptance Form, Participants are deemed to acknowledge that they have such access to the e-mail system of Galapagos, as well as to Galapagos’ website and intranet and ordinarily use them in the ordinary course of their mandate. Participants may obtain paper copies of any such information by submitting a request to receive paper copies to incentives@glpg.com.

11 Modification of the Plan

Galapagos may unilaterally modify at any time the practical and/or accessory modalities of the Plan. It may also unilaterally modify the Plan when such modifications are required to comply with any change in legislation.

12 Nature of the Plan

Notwithstanding any provisions to the contrary included in the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan:

(i) the Offer of Restricted Stock Units and/or the subsequent delivery of Shares to the Participant in the framework of the Plan is unrelated to his/her pension rights or pension claims, if any, unless specifically provided otherwise in applicable legislation or the terms and conditions of the applicable pension plan;

(ii) the Plan, the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan do not confer upon the Participant any right to continued employment or other contractual relationship for any period of specific duration or interfere with or otherwise restrict in any way the rights of Galapagos or its Affiliates to terminate the Participant’s employment or other contractual relationship according to the applicable regulations in respect of termination thereof;

(iii) the Offer of Restricted Stock Units cannot be considered as a right acquired for the future; and

(iv) any rights and entitlements pursuant to this Plan are granted on a discretionary basis. Repeated grants do not entitle any Participant to any future grant. Grants remain in the complete discretion of Galapagos. In particular, Galapagos reserves the right to determine the scope of beneficiaries and the conditions of the Plan in relation to any further grant.

13 Privacy and processing of Personal Data

See Schedule 1.

14 Confidentiality

The existence, subject matter and terms of the Plan (or any agreement entered into pursuant to the Plan) are confidential and the Participants are prohibited from disclosing all or any

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part of the Plan, or its existence, at any time, unless the disclosure is required by law or by any court of competent jurisdiction.

15 Severability

If any provision in this document is held to be illegal, invalid or unenforceable, in whole or in part, under any applicable law, that provision will be deemed not to form part of this document, and the legality, validity or enforceability of the remainder of this document will not be affected.

16 US Restrictions

The RSUs and the Shares delivered upon Vesting (if any) have not been and will not be registered under the U.S. Securities Act of 1933 (as amended, the “Securities Act”) and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons except in certain transactions exempt from the registration requirements of the Securities Act. Terms used in this paragraph have the meanings given to them by Regulation S under the Securities Act.

Furthermore, the Shares delivered upon Vesting (if any) are deemed to be restricted securities in accordance with Rule 144 under the Securities Act. As such, the Shares may not be resold on a U.S. market or exchange (including Nasdaq) for a period of six months after Vesting.

17 Applicable law - Jurisdiction

The Restricted Stock Units and these terms and conditions are governed by Belgian law.

Any dispute arising out of or in connection with the Plan, including the Restricted Stock Units, the Offer Notification, the Acceptance Form and the present terms and conditions will be settled by the courts set out in the Offer Notification.

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Schedule 1 – Privacy and processing of Personal Data

To enable the proper set-up and management of the Plan and the RSU register, Personal Data about each Participant will need to be collected and used. This Schedule sets out the obligations of Galapagos and the rights of Participants regarding any such collection and use, and provides the legally required information in this respect.

1 Identity of the person responsible for your Personal Data

Galapagos is the so-called “Data Controller”, which is responsible for the collection and processing of Personal Data as is necessary for the setting-up and management of the Plan and the RSU register of Galapagos in electronic form.

2 Why and how Personal Data is collected and used

The Personal Data will either be collected via e-mail, the Online Tool or Galapagos’ HR IS system. It will be used exclusively for the purposes of the administration of the Plan and the maintenance of the RSU register of Galapagos in electronic form.

The Personal Data collected in the context of the Plan and the RSU Register will be stored for a period of ten years.

The Data Controller and any Data Processor will collect and process the Participants’ Personal Data in accordance with the GDPR and this Schedule.

3 Nature of the Personal Data

The following Personal Data relating to the Participants will be collected and used:

(i) their contact details (e.g. names*, private/professional* (e-mail) addresses/phone numbers);

(ii) electronic identification data;

(iii) personal characteristics (i.e. date of birth*);

(iv) financial data (e.g. details regarding bank account); and

(v) details of all information relating to Restricted Stock Units awarded, cancelled, vested, unvested or outstanding.

4 Other persons having access to the Personal Data and purpose thereof

The Data Controller can transfer the Personal Data to the following categories of recipients:

(i) the provider of the Online Tool acting as Data Processor;  

(ii) payroll operators acting as Data Processors;

(iii) regulatory authorities for the purposes of complying with legal obligations in connection with the Plan; and

(iv) any member of the Galapagos group for the administration and management of the Plan.

Such recipients may be located in jurisdictions outside the European Economic Area (“EEA”) that may not provide an adequate level of personal data protection. The Data Controller

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relies upon standard contractual clauses with the relevant data importer to transfer the data to such jurisdictions, a copy hereof can be obtained through dpo@glpg.com.

5 Legal basis allowing Galapagos to collect and use Personal Data

The processing of Personal Data of the Participants by the Data Controller in the context of this Plan is necessary for the performance of the contractual arrangements between the Participants and the Data Controller referred to in the introduction of this Plan (i.e. providing certain members of the management board and certain employees of Galapagos the opportunity to receive Restricted Stock Units as an incentive). Failure by the Participant to provide the necessary Personal Data will result in the impossibility for Galapagos to perform part of its contractual arrangements towards the Participants.

The Data Controller can also process Personal Data of the Participants to comply with its legal obligations towards the regulatory authorities.

6 Rights of the Participants

The Participant can exercise his/her right to request access to and rectification or, in certain circumstances, erasure of his/her Personal Data or restriction of processing concerning the Participant or to object to processing as well as the right to data portability by sending a written request to dpo@glpg.com.

If Participants are not satisfied with how Galapagos processes their Personal Data, they may contact Galapagos through dpo@glpg.com. They also have the right to make a complaint to the Belgian Data Protection Authority.

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EX-4.46

Confidential

RSU/Retention 2021 (B)

Exhibit 4.46

Restricted Stock Units/Retention Plan 2021 (B) – Participants’ Guide

This multi-year Plan is intended to provide certain members of the management board of Galapagos the opportunity to receive Restricted Stock Units as a long-term incentive. Its purpose is to retain and encourage Participants to contribute to the performance of Galapagos and its Affiliates by aligning their financial interests with those of the shareholders.

1 Definitions

When used in this document, the following terms shall have the meaning ascribed to them as indicated below, unless expressly indicated otherwise:

Acceptance Form	the form, which may be electronic, in which the Participant confirms, among other things, receipt of the Offer from Galapagos and the Restricted Stock Units;
Acceptance Period	the period during which a Participant must return the completed Acceptance Form to Galapagos, as indicated in the Offer Notification;
Affiliate	any affiliated company (“société liée” / “verbonden vennootschap”) as defined under Article 1:20 of the Code of Companies and Associations (as may be amended from time to time) and any other entity in which Galapagos has a direct or indirect interest and which is designated by the Board as being an Affiliate for purposes of this Plan;
Board	the supervisory board of Galapagos;
Code of Dealing	the code of dealing of Galapagos, as amended from time to time;
Data Controller	Galapagos;
Data Processor	any third party designated by the Data Controller to process Personal Data on behalf of the Data Controller in accordance with Schedule 1 for the implementation, administration and management of the Plan and the Share register and RSU register in electronic form;

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Galapagos	Galapagos NV/SA with its registered office at Generaal De Wittelaan L11, Bus A3 2800 Mechelen, Belgium;
GDPR	Regulation 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation);
Offer	the offer of Restricted Stock Units by Galapagos to the Participant as set out in the Offer Notification;
Offer Date	has the meaning given to it in the Offer Notification;
Offer Notification	the notification, either sent via email or made available through the Online Tool, whereby Galapagos communicates the details of the Offer;
Online Tool	a secured website allowing the Participants to have online access to all information relating to their RSUs;
Participant	a member of the management board of Galapagos, in each case as designated by Galapagos, who received an Offer Notification, or any Successor to whom Restricted Stock Units have been transferred in accordance with these terms and conditions;
Personal Data	each item of information relating to an identified or identifiable Participant defined as personal data pursuant to the GDPR;
Plan	this Restricted Stock Units/Retention Plan 2021 (B);
RSU or Restricted Stock Unit	the right to receive from Galapagos one existing and/or new Share per RSU and/or a payment in cash per RSU, in accordance with these terms and conditions;
Share	an existing or newly issued ordinary share of Galapagos;
Successor	the successor of a Participant as determined under the applicable law of succession and/or the persons designated by a Participant, in accordance with the applicable law of succession, to inherit the rights of the Participant under the Plan after the death of the Participant;
Vesting	a Participant becoming unconditionally entitled to receive one Galapagos Share per Restricted Stock Unit or an equivalent amount in cash, subject to the terms and conditions of this Plan;

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Vesting Date has the meaning given to it in the Offer Notification, it being understood that Vesting Date shall be construed to mean the plural where necessary.

2 Acceptance of the Restricted Stock Units

The Plan forms part of an agreement between the Participant and Galapagos. By accepting the Offer, Participants unconditionally agree to be bound by the contents of this document, the Offer Notification and the Acceptance Form.

A Participant is free to accept or refuse the Offer. The Participant can only accept all the Restricted Stock Units offered in the Offer Notification. Partial acceptance of these terms and conditions shall be deemed to constitute a refusal of the Offer as a whole.

The mode of acceptance of the Offer is set out in the Offer Notification, including the deadline for accepting the Offer. Failure to comply with the mode of acceptance of the Offer shall be deemed to constitute a refusal of the Offer as a whole.

The Restricted Stock Units are offered for no consideration.

3 Nature and characteristics of the Restricted Stock Units

3.1 No shareholder rights

Restricted Stock Units do not confer any shareholder rights. For example, they do not confer any voting or dividend rights or the right to attend shareholders’ meetings.

3.2 Transferability

Except for transfers as a result of death (see Clause 7.2), Restricted Stock Units may not be transferred to any third party.

If the Participant is a legal person and if such Participant is going to cease to exist (for example in the event of a dissolution), Galapagos and such Participant will agree in due time on how to deal with such situation.

Restricted Stock Units shall not be encumbered with any security, pledge or other right.

4 Vesting of the Restricted Stock Units

The Restricted Stock Units will vest on the Vesting Date specified in the Offer Notification, subject to the service rules of Clause 7.  

If a Participant takes a sabbatical leave of a period exceeding six months, the relevant Vesting Date shall be deferred with a period of one year.

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In the event of Vesting and subject to these terms and conditions, Galapagos will, at its own discretion:

(i) deliver one Share per Restricted Stock Unit held by the Participant, as soon as reasonably practicable following the Vesting Date; or

(ii) make a payment in cash to the Participant of an amount equivalent to the volume weighted average price of the Share on Euronext Brussels over the 30-calendar day period preceding the Vesting Date multiplied by the number of Restricted Stock Units, as soon as reasonably practicable following the Vesting Date.

The terms of such delivery and/or payment will be determined by Galapagos in advance of the Vesting Date and will be communicated in due time to each Participant, who will be required to comply with such terms.

5 Nature and characteristics of the underlying Shares

5.1 General

If Galapagos elects to deliver Shares upon Vesting of the Restricted Stock Units, these Shares shall be, at the discretion of Galapagos:

(i) existing ordinary Shares of Galapagos; or

(ii) new Shares to be issued in consideration for the payment by each Participant of a subscription price of 0.01 euro per Share.

Galapagos will, at its discretion, deliver Shares in dematerialised (electronic or book-entry) form or in registered form.

The increase in Galapagos' share capital, if any, corresponding to the issue of new Shares in the framework of the Plan will be recorded by notarial deed. The Participants shall be required to comply with the necessary formalities applicable to the capital increase. These will be communicated in due time in advance of the Vesting.

5.2 Dividends

The Shares delivered upon vesting of the Restricted Stock Units give the right to the dividends paid on such Shares decided by Galapagos after the Vesting Date.

5.3 Transferability

Unless agreed otherwise between the Participant and Galapagos, the Shares delivered upon vesting of the Restricted Stock Units are not subject to any transfer restrictions under the rules of the Plan.

Participants may be offered the choice to conclude a lock-up agreement with Galapagos for a two-year period starting on the Vesting Date, in respect of all or part of the Shares, as this may enable a more beneficial tax and/or social security treatment in some countries. That choice will need to be made before the Vesting Date. Galapagos will contact the Participants in due time before that date to provide them with the necessary information and prepare the lock-up agreement, if the Participants choose to conclude it.

6 Expenses and taxes

6.1 All costs related to the attribution of the Restricted Stock Units and the delivery of the underlying Shares will be borne by Galapagos.

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6.2 However, Participants will be solely responsible for any taxes (including but not limited to income taxes, capital gains taxes, stock exchange taxes and taxes on securities accounts) and personal social security charges due in connection with (i) the Offer and Vesting of the Restricted Stock Units and (ii) the delivery and ownership of the underlying Shares, in accordance with applicable tax and social security laws.

The Participants shall also pay a subscription price of 0.01 euro per Share if Galapagos elects to deliver new Shares, in accordance with Clause 5.1.

6.3 Galapagos may either (i) require that the Participants pay, or (ii) withhold from any payment or delivery of Shares at any time any income or social security taxes that are required to be withheld under any applicable law, rule or regulation.

7 Situation upon termination of mandate

7.1 End of mandate as self-employed

If a Participant is dismissed, resigns, retires or if his/her management agreement with Galapagos comes to an end and/or is not renewed, all Restricted Stock Units held by the Participant on the date of his/her dismissal, resignation, retirement or the end of management agreement and that have not yet vested will automatically become null and void.

Shares already held by a Participant, as a result of the Vesting of Restricted Stock Units before the date of his/her dismissal, resignation, retirement or the end of management agreement, will not be affected.

7.2 Death or permanent disability

In the event of permanent disability or death, all Restricted Stock Units shall vest in full on the next Vesting Date (or on such earlier date as determined by Galapagos) and the underlying Shares shall be transferred to the Participant, or his/her Successor in the event of death.

The notion of “permanent disability” is to be defined by reference to the law governing the employment relationship and the applicable social security regime, or alternatively, by the pension rules in the relevant jurisdiction or, if applicable, management contract of the Participant.

In the event of a Participant's death, any Successor acquiring the Restricted Stock Units shall inform Galapagos of the Participant's death as soon as possible.

8 Amendment to the capital structure and anti-dilution measures

8.1 Corporate changes

Galapagos expressly reserves the right to proceed with corporate changes that have an impact on its capital, such as capital increases, including by incorporation of reserves in the capital, capital decreases, issuance of convertible bonds, subscription rights or options, stock splits or reverse stock splits, combinations or reclassifications of the Shares, mergers and (partial) demergers, as well as the right to amend the clauses in the articles of association governing the allocation of profits or liquidation boni.

In the event that any such corporate change would have a materially unfavourable impact on the Restricted Stock Units, Galapagos may decide in its sole discretion to adjust the Plan

5

Confidential

RSU/Retention 2021 (B)

for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the shareholders' meeting of Galapagos. The terms of such adjustment will be communicated to the Participants in due time.

8.2 Public takeover bid – Change of control

In any of the following events:

(i)the FSMA publishes a notice stating that a public takeover bid has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on public takeover bids (or any succeeding provision);

(ii)the FSMA publishes a notice stating that a squeeze-out has been launched on Galapagos, as referred to under Article 7 of the Belgian Royal Decree of 27 April 2007 on squeeze-outs (or any succeeding provision); or

(iii)the control or the absence of control exercised over Galapagos changes (the notion of control being defined by Articles 1:14 to 1:18 of the Belgian Code of Companies and Associations (or any succeeding provisions)),

Galapagos may decide in its sole discretion to adjust the Plan for the purpose of safeguarding the interests of the holders of Restricted Stock Units, subject to any required action by the shareholders' meeting of Galapagos. Such adjustment may, without limitation and at the discretion of Galapagos, consist in the cancellation of the Restricted Stock Units and the payment of their fair market value to the Participants or in the accelerated Vesting of the Restricted Stock Units.

9 Insider dealing rules

The Participants shall comply at all times with the Code of Dealing, as well as applicable laws prohibiting insider dealing.

10 Electronic register, electronic evidence and electronic delivery

10.1 Electronic Share register and register of Restricted Stock Units

The Restricted Stock Units and Shares resulting from the vesting of such Restricted Stock Units will be recorded in a register, which may be in electronic form and the maintenance of which may be delegated by Galapagos to a third party.

10.2 Electronic evidence

Electronic approvals, instructions, orders, statements and communications between a Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan will have the same legal status as written approvals, instructions, orders, statements and communications. The written recording or the written reproduction of electronic approvals, instructions, orders, statements and communications received by Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, will constitute conclusive evidence between the Participant, Galapagos, Galapagos affiliates and any third party to which powers have been sub-delegated by Galapagos for the administration of the Plan, unless evidence to the contrary is provided by the Participant.

6

Confidential

RSU/Retention 2021 (B)

10.3 Electronic delivery

All subsequent information relating to the Restricted Stock Units will be communicated by electronic means, including e-mails to the Participants and postings on Galapagos’ website or intranet. Such information may include, amongst others, financial information concerning Galapagos. In order to access such information, Participants will be required to access Galapagos e-mail system, website and/or intranet, unless otherwise specified by Galapagos. By returning the Acceptance Form, Participants are deemed to acknowledge that they have such access to the e-mail system of Galapagos, as well as to Galapagos’ website and intranet and ordinarily use them in the ordinary course of their mandate. Participants may obtain paper copies of any such information by submitting a request to receive paper copies to incentives@glpg.com.

11 Modification of the Plan

Galapagos may unilaterally modify at any time the practical and/or accessory modalities of the Plan. It may also unilaterally modify the Plan when such modifications are required to comply with any change in legislation.

12 Nature of the Plan

Notwithstanding any provisions to the contrary included in the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan:

(i) the Offer of Restricted Stock Units and/or the subsequent delivery of Shares to the Participant in the framework of the Plan is unrelated to his/her pension rights or pension claims, if any, unless specifically provided otherwise in applicable legislation or the terms and conditions of the applicable pension plan;

(ii) the Plan, the terms and conditions, the Offer Notification, the Acceptance Form or any other document relating to the Plan do not confer upon the Participant any right to continued employment or other contractual relationship for any period of specific duration or interfere with or otherwise restrict in any way the rights of Galapagos or its Affiliates to terminate the Participant’s employment or other contractual relationship according to the applicable regulations in respect of termination thereof;

(iii) the Offer of Restricted Stock Units cannot be considered as a right acquired for the future; and

(iv) any rights and entitlements pursuant to this Plan are granted on a discretionary basis. Repeated grants do not entitle any Participant to any future grant. Grants remain in the complete discretion of Galapagos. In particular, Galapagos reserves the right to determine the scope of beneficiaries and the conditions of the Plan in relation to any further grant.

13 Privacy and processing of Personal Data

See Schedule 1.

14 Confidentiality

The existence, subject matter and terms of the Plan (or any agreement entered into pursuant to the Plan) are confidential and the Participants are prohibited from disclosing all or any

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RSU/Retention 2021 (B)

part of the Plan, or its existence, at any time, unless the disclosure is required by law or by any court of competent jurisdiction.

15 Severability

If any provision in this document is held to be illegal, invalid or unenforceable, in whole or in part, under any applicable law, that provision will be deemed not to form part of this document, and the legality, validity or enforceability of the remainder of this document will not be affected.

16 US Restrictions

The RSUs and the Shares delivered upon Vesting (if any) have not been and will not be registered under the U.S. Securities Act of 1933 (as amended, the “Securities Act”) and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons except in certain transactions exempt from the registration requirements of the Securities Act. Terms used in this paragraph have the meanings given to them by Regulation S under the Securities Act.

Furthermore, the Shares delivered upon Vesting (if any) are deemed to be restricted securities in accordance with Rule 144 under the Securities Act. As such, the Shares may not be resold on a U.S. market or exchange (including Nasdaq) for a period of six months after Vesting.

17 Applicable law - Jurisdiction

The Restricted Stock Units and these terms and conditions are governed by Belgian law.

Any dispute arising out of or in connection with the Plan, including the Restricted Stock Units, the Offer Notification, the Acceptance Form and the present terms and conditions will be settled by the courts set out in the Offer Notification.

8

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RSU/Retention 2021 (B)

Schedule 1 – Privacy and processing of Personal Data

To enable the proper set-up and management of the Plan and the RSU register, Personal Data about each Participant will need to be collected and used. This Schedule sets out the obligations of Galapagos and the rights of Participants regarding any such collection and use, and provides the legally required information in this respect.

1 Identity of the person responsible for your Personal Data

Galapagos is the so-called “Data Controller”, which is responsible for the collection and processing of Personal Data as is necessary for the setting-up and management of the Plan and the RSU register of Galapagos in electronic form.

2 Why and how Personal Data is collected and used

The Personal Data will either be collected via email, the Online Tool or Galapagos’ HR IS system. It will be used exclusively for the purposes of the administration of the Plan and the maintenance of the RSU register of Galapagos in electronic form.

The Personal Data collected in the context of the Plan and the RSU Register will be stored for a period of ten years.

The Data Controller and any Data Processor will collect and process the Participants’ Personal Data in accordance with the GDPR and this Schedule.

3 Nature of the Personal Data

The following Personal Data relating to the Participants will be collected and used:

(i) their contact details (e.g. names*, private/professional* (e-mail) addresses/phone numbers);

(ii) electronic identification data;

(iii) personal characteristics (i.e. date of birth*);

(iv) financial data (e.g. details regarding bank account); and

(v) details of all information relating to Restricted Stock Units awarded, cancelled, vested, unvested or outstanding.

4 Other persons having access to the Personal Data and purpose thereof

The Data Controller can transfer the Personal Data to the following categories of recipients:

(i) the provider of the Online Tool acting as Data Processor;  

(ii) payroll operators acting as Data Processors;

(iii) regulatory authorities for the purposes of complying with legal obligations in connection with the Plan; and

(iv) any member of the Galapagos group for the administration and management of the Plan.

Such recipients may be located in jurisdictions outside the European Economic Area (“EEA”) that may not provide an adequate level of personal data protection. The Data Controller

9

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RSU/Retention 2021 (B)

relies upon standard contractual clauses with the relevant data importer to transfer the data to such jurisdictions, a copy hereof can be obtained through dpo@glpg.com.

5 Legal basis allowing Galapagos to collect and use Personal Data

The processing of Personal Data of the Participants by the Data Controller in the context of this Plan is necessary for the performance of the contractual arrangements between the Participants and the Data Controller referred to in the introduction of this Plan (i.e. providing certain members of the management board of Galapagos the opportunity to receive Restricted Stock Units as an incentive). Failure by the Participant to provide the necessary Personal Data will result in the impossibility for Galapagos to perform part of its contractual arrangements towards the Participants.

The Data Controller can also process Personal Data of the Participants to comply with its legal obligations towards the regulatory authorities.

6 Rights of the Participants

The Participant can exercise his/her right to request access to and rectification or, in certain circumstances, erasure of his/her Personal Data or restriction of processing concerning the Participant or to object to processing as well as the right to data portability by sending a written request to dpo@glpg.com.

If Participants are not satisfied with how Galapagos processes their Personal Data, they may contact Galapagos through dpo@glpg.com. They also have the right to make a complaint to the Belgian Data Protection Authority.

10

EX-8.1

Exhibit 8.1

Subsidiaries of Galapagos NV

In liquidatio
Name of Subsidiary	Jurisdiction of Incorporation or Organization
Galapagos B.V.	The Netherlands
Galapagos Biotech Ltd.	United Kingdom
Galapagos SASU	France
Galapagos, Inc.	United States
Xenometrix, Inc.	United States
Galapagos GmbH	Switzerland
Galapagos Real Estate Belgium BV	Belgium
Galapagos Biopharma Belgium BV	Belgium
Galapagos Real Estate Netherlands B.V.	Netherlands
Galapagos Biopharma Netherlands B.V.	Netherlands
Galapagos Biopharma Spain S.L.U.	Spain
Galapagos Biopharma Italy S.r.l.	Italy
Galapagos Biopharma Germany GmbH	Germany
Galapagos Biopharma Sweden AB	Sweden
Galapagos Biopharma Finland Oy	Finland
Galapagos Biopharma Norway AS	Norway
Galapagos Biopharma Denmark ApS	Denmark
Galapagos Biopharma Austria GmbH	Austria
Galapagos Biopharma Ireland Ltd.	Ireland

Page 1 of 1

EX-12.1

Exhibit 12.1

Certification by the Principal Executive Officer pursuant to

Securities Exchange Act Rules 13a-14(a) and 15d-14(a)

as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Onno van de Stolpe, certify that:

1.    I have reviewed this annual report on Form 20-F of Galapagos NV;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the company as of, and for, the periods presented in this report;

4.    The company’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the company and have:

(a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)   Evaluated the effectiveness of the company’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)   Disclosed in this report any change in the company’s internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the company’s internal control over financial reporting; and

5.    The company’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the company’s auditors and the audit committee of the company’s board of directors (or persons performing the equivalent functions):

(a)   All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the company’s ability to record, process, summarize and report financial information; and

(b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the company’s internal control over financial reporting.

Date: March 24, 2022
/s/ Onno van de Stolpe
Name:	Onno van de Stolpe
Title:	Chief Executive Officer
(Principal Executive Officer)

EX-12.2

Exhibit 12.2

Certification by the Principal Financial Officer pursuant to

Securities Exchange Act Rules 13a-14(a) and 15d-14(a)

as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Bart Filius, certify that:

1.    I have reviewed this annual report on Form 20-F of Galapagos NV;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the company as of, and for, the periods presented in this report;

4.    The company’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the company and have:

(a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)   Evaluated the effectiveness of the company’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)   Disclosed in this report any change in the company’s internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the company’s internal control over financial reporting; and

5.    The company’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the company’s auditors and the audit committee of the company’s board of directors (or persons performing the equivalent functions):

(a)   All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the company’s ability to record, process, summarize and report financial information; and

(b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the company’s internal control over financial reporting.

2
Date: March 24, 2022
/s/ Bart Filius
Name:	Bart Filius
Title:	President, Chief Financial Officer & Chief Operating Officer
(Principal Financial Officer)

EX-13.1

Exhibit 13.1

Certification by the Principal Executive Officer pursuant to

18 U.S.C. Section 1350, as adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the annual report of Galapagos NV (the “Company”) on Form 20-F for the fiscal year ended December 31, 2021 as filed with the U.S. Securities and Exchange Commission on the date hereof (the “Report”), I, Onno van de Stolpe, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1)     The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)     The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 24, 2022
/s/ Onno van de Stolpe
Name:	Onno van de Stolpe
Title:	Chief Executive Officer
(Principal Executive Officer)

EX-13.2

Exhibit 13.2

Certification by the Principal Financial Officer pursuant to

18 U.S.C. Section 1350, as adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the annual report of Galapagos NV (the “Company”) on Form 20-F for the fiscal year ended December 31, 2021 as filed with the U.S. Securities and Exchange Commission on the date hereof (the “Report”), I, Bart Filius, President - Chief Financial Officer & Chief Operating Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1)     The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)     The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 24, 2022
/s/ Bart Filius
Name:	Bart Filius
Title:	President, Chief Financial Officer & Chief Operating Officer
(Principal Financial Officer)

EX-15.1

Exhibit 15.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Registration Statement No. 333-230639 on Form F-3 and Nos. 333-260500, 333-249416, 333-231765, 333-225263, 333-218160, 333-215783, 333-211834, 333-208697, 333-204567 on Form S-8 of our reports dated March 24, 2022, relating to the financial statements of Galapagos NV and the effectiveness of Galapagos NV's internal control over financial reporting appearing in this Annual Report on Form 20-F for the year ended December 31, 2021.

Zaventem, Belgium, March 24, 2022

/s/ Deloitte Bedrijfsrevisoren / Réviseurs d’Entreprises BV/SRL

Deloitte Bedrijfsrevisoren/Réviseurs d’Entreprises BV/SRL

XML

Document and Entity Information	12 Months Ended
	Dec. 31, 2021 shares
Entity Addresses [Line Items]
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Document Period End Date	Dec. 31, 2021
Entity File Number	001-37384
Entity Registrant Name	GALAPAGOS NV
Entity Incorporation, State or Country Code	C9
Document Accounting Standard	International Financial Reporting Standards
Entity Address, Address Line One	Generaal De Wittelaan L11 A3
Entity Address, City or Town	Mechelen
Entity Address, Country	BE
Entity Address, Postal Zip Code	2800
Title of 12(b) Security	American Depositary Shares, each representing one
Security Exchange Name	NASDAQ
Trading Symbol	GLPG
Entity Common Stock, Shares Outstanding	65,552,721
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Central Index Key	0001421876
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Auditor Name	Deloitte Bedrijfsrevisoren / Réviseurs d’Entreprises BV/SRL
Auditor Firm ID	1133
Auditor Location	Zaventem, Belgium
Amendment Flag	false
Business Contact [Member]
Entity Addresses [Line Items]
Entity Address, Address Line One	Generaal De Wittelaan L11 A3
Entity Address, City or Town	Mechelen
Entity Address, Country	BE
Entity Address, Postal Zip Code	2800
Contact Personnel Fax Number	32 15 342 901
Contact Personnel Name	Onno van de Stolpe

XML

Consolidated Statement of Financial Position € in Thousands, $ in Millions	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)
Assets
Intangible assets	€ 60,103	€ 67,565	€ 24,927
Property, plant and equipment	137,512	103,378	66,052
Deferred tax assets	4,032	4,475	4,205
Non-current trade receivables		50,000
Non-current R&D incentives receivables	127,186	111,624	93,407
Other non-current assets	2,473	11,343	14,091
Non-current assets	331,306	348,384	202,682
Inventories	20,569	36
Trade and other receivables	111,337	148,418	54,009
Current R&D incentives receivables	16,827	24,104	21,949
Current financial investments	2,469,809	3,026,278	3,919,216
Cash and cash equivalents	2,233,368	2,135,187	1,861,616
Other current assets	9,945	11,917	9,138
Current assets from continuing operations	4,861,854	5,345,941	5,865,927
Assets classified as held for sale		23,406
Total current assets	4,861,854	5,369,347	5,865,927
Total assets	5,193,160	5,717,731	6,068,609
Equity and liabilities
Share capital	292,075	291,312	287,282
Share premium account	2,730,391	2,727,840	2,703,583
Other reserves	10,177	10,907	4,842
Translation differences	(1,722)	(3,189)	(1,142)
Accumulated losses	(367,205)	(334,701)	(109,223)
Total equity	2,643,362	2,670,355	2,875,658
Retirement benefit liabilities	11,699	14,996	8,263
Non-current lease liabilities	19,655	23,035	19,558
Other non-current liabilities	7,135	8,096	6,989
Non-current deferred income	1,944,836	2,365,974	2,586,348
Non-current liabilities	1,983,325	2,412,101	2,621,158
Current lease liabilities	7,204	6,401	5,826
Trade and other liabilities	137,418	172,386	143,434
Current tax payable	1,782	1,248	2,037
Current financial instruments	204	3,164	6,198
Current deferred income	419,866	443,159	414,298
Current liabilities from continuing operations	566,474	626,357	571,793
Liabilities directly associated with assets classified as held for sale		8,917
Total current liabilities	566,474	635,274	571,793
Total liabilities	2,549,798	3,047,375	3,192,951
Total equity and liabilities	€ 5,193,160	€ 5,717,731	€ 6,068,609

XML

Consolidated Statement of Operations - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statement of Operations
Product net sales	€ 14,753	€ 2
Collaboration revenues	470,093	478,051	€ 834,901
Total net revenues	484,846	478,053	834,901
Cost of sales	(1,629)
Research and development expenses	(491,707)	(523,667)	(420,090)
Sales and marketing expenses	(69,956)	(66,468)	(24,577)
General and administrative expenses	(140,899)	(118,757)	(72,382)
Other operating income	53,749	52,207	50,896
Operating income/loss (-)	(165,596)	(178,632)	368,748
Fair value re-measurement of share subscription agreement and warrants	2,960	3,034	(181,644)
Other financial income	70,548	18,667	21,389
Other financial expenses	(30,911)	(152,844)	(59,968)
Income/loss (-) before tax	(122,999)	(309,775)	148,525
Income taxes	(2,423)	(1,226)	165
Net income/loss (-) from continuing operations	(125,422)	(311,001)	148,689
Net income from discontinued operations, net of tax	22,191	5,565	1,156
Net income/loss (-)	(103,231)	(305,436)	149,845
Net income/loss (-) attributable to:
Owners of the parent	€ (103,231)	€ (305,436)	€ 149,845
Basic income/loss (-) per share	€ (1.58)	€ (4.69)	€ 2.60
Diluted income/loss (-) per share	(1.58)	(4.69)	2.49
Basic income/ loss (-) per share from continuing operations (in EUR per share)	(1.91)	(4.78)	2.58
Diluted income/ loss (-) per share from continuing operations (in EUR per share)	€ (1.91)	€ (4.78)	€ 2.47

XML

Consolidated Statement of Comprehensive Income/Loss (-) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statement of Comprehensive Income/Loss
Net income/loss (-)	€ (103,231)	€ (305,436)	€ 149,845
Items that will not be reclassified subsequently to profit or loss:
Re-measurement of defined benefit obligation	730	(6,065)	(4,107)
Items that may be reclassified subsequently to profit or loss:
Translation differences, arisen from translating foreign activities	736	(1,024)	415
Realization of translation differences upon sale/liquidation of foreign operations	731	(1,023)
Other comprehensive income / loss (-), net of income tax	2,197	(8,112)	(3,692)
Total comprehensive income / loss (-) attributable to:
Owners of the parent	(101,034)	(313,548)	146,154
Total comprehensive income / loss (-) attributable to owners of the parent arises from:
Continuing operations	(123,956)	(318,841)	145,050
Discontinued operations	€ 22,922	€ 5,293	€ 1,104

XML

Consolidated Statement of Changes in Equity - EUR (€) € in Thousands	Share capital. Warrant A [member] Gilead [member]	Share capital.	Share premium account Warrant A [member] Gilead [member]	Share premium account	Translation differences	Other reserves	Accumulated losses	Warrant A [member] Gilead [member]	Total
Balance at beginning of year (IFRS 9) at Dec. 31, 2018		€ 236,540		€ 1,277,780	€ (1,557)	€ (735)	€ (297,363)		€ 1,214,665
Balance at beginning of year at Dec. 31, 2018		236,540		1,277,780	(1,557)	(735)	(297,779)		1,214,249
Change in accounting policy ( modified retrospective application IFRS 9) (IFRS 9) at Dec. 31, 2018							416		416
Net income/loss (-)							149,845		149,845
Other comprehensive income / loss (-)					415	(4,107)			(3,692)
Total comprehensive income / loss (-)					415	(4,107)	149,845		146,154
Share-based compensation							38,297		38,297
Derecognition of financial liability from share subscription agreement and warrant A				135,702					135,702
Issue of new shares		36,945		923,142					960,087
Share issue costs		(4,447)							(4,447)
Exercise of warrant/ subscription rights	€ 14,162	4,082	€ 353,873	13,085				€ 368,035	17,167
Balance at end of year at Dec. 31, 2019		287,282		2,703,583	(1,142)	(4,842)	(109,223)		2,875,658
Net income/loss (-)							(305,436)		(305,436)
Other comprehensive income / loss (-)					(2,047)	(6,065)			(8,112)
Total comprehensive income / loss (-)					(2,047)	(6,065)	(305,436)		(313,548)
Share-based compensation							79,959		79,959
Exercise of warrant/ subscription rights		4,031		24,257					28,288
Balance at end of year at Dec. 31, 2020		291,312		2,727,840	(3,189)	(10,907)	(334,701)		2,670,355
Net income/loss (-)							(103,231)		(103,231)
Other comprehensive income / loss (-)					1,467	730			2,197
Total comprehensive income / loss (-)					1,467	730	(103,231)		(101,034)
Share-based compensation							70,726		70,726
Exercise of warrant/ subscription rights		763		2,551					3,314
Balance at end of year at Dec. 31, 2021		€ 292,075		€ 2,730,391	€ (1,722)	€ (10,177)	€ (367,205)		€ 2,643,362

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Consolidated Cash Flow Statement - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Cash Flow Statements, Captions [Line Items]
Net income/loss (-)	€ (103,231)	€ (305,436)	€ 149,845
Adjustment for non-cash transactions	57,718	230,723	248,027
Adjustment for items to disclose separately under operating cash flow	11,227	4,067	(7,731)
Adjustment for items to disclose under investing and financing cash flows	(28,847)	(2,472)	(5,061)
Change in working capital other than deferred income	23,337	(146,092)	12,698
Increase/decrease (-) in deferred income	(453,720)	(207,787)	2,804,202
Cash generated from/used in (-) operations	(493,516)	(426,998)	3,201,980
Interest paid	(12,540)	(9,033)	(1,158)
Interest received	2,913	10,054	7,852
Corporate taxes paid	(684)	(1,358)	(57)
Net cash flows generated from/used in (-) operating activities	(503,827)	(427,336)	3,208,617
Purchase of property, plant and equipment	(54,205)	(42,522)	(22,385)
Purchase of and expenditure in intangible fixed assets	(3,674)	(48,793)	(23,300)
Proceeds from disposal of property, plant and equipment		49
Purchase of current financial investments	(1,561,015)	(4,574,206)	(4,787,284)
Interest received related to current financial investments	12	3,500	5,059
Sale of current financial investments	2,127,380	5,415,316	1,063,344
Disposals of subsidiaries, net of cash disposed	28,696
Acquisition of financial assets		(2,681)	(177)
Proceeds from sale of financial assets held at fair value through profit or loss	4,045	6,626	82
Net cash flows generated from/used in (-) investing activities	541,238	757,288	(3,764,660)
Payment of lease liabilities and other debts	(7,190)	(6,247)	(5,091)
Proceeds from capital and share premium increases, gross amount			960,087
Issue cost paid, related to capital and share premium increases			(4,447)
Proceeds from capital and share premium increases from exercise of subscription rights	3,314	28,287	17,167
Net cash flows generated from/used in (-) financing activities	(3,876)	22,040	1,335,751
Increase in cash and cash equivalents	33,535	351,994	779,708
Cash and cash equivalents at beginning of period	2,143,071	1,861,616	1,290,796
Supplemental Cash Flow Information [abstract]
Transfer To Current Financial Investments			(198,922)
Cash and cash equivalents at end of the period	2,233,368	2,143,071	1,861,616
Effect of exchange rate differences on cash and cash equivalents	€ 56,763	€ (70,539)	(9,966)
Warrant A [member] | Gilead [member]
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from capital and share premium increases from exercise of subscription rights			€ 368,035

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Consolidated Statement of Cash Flows, Current Financial Investments € in Thousands, $ in Millions	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)
Consolidated Statement of Cash Flows
Current financial investments	€ 2,469,809		€ 3,026,278	€ 3,919,216
Cash and cash equivalents.	2,233,368	$ 807.9	2,135,187	1,861,616
Cash and cash equivalents classified as assets held for sale			7,884
Current financial investments and cash and cash equivalents	€ 4,703,177		€ 5,169,349	€ 5,780,832

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General information

12 Months Ended

Dec. 31, 2021

General information.

General information

Notes to Consolidated Financial Statements

1. General information

Galapagos NV is a limited liability company incorporated in Belgium and has its registered office at Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium. In the notes to the consolidated financial statements, references to “we,” “us,” “the group” or “Galapagos” include Galapagos NV together with its subsidiaries.

We are an integrated biopharmaceutical company active in the discovery, development, and commercialization of medicines with novel modes of action, several of which are currently in clinical development in multiple diseases with high unmet medical need. Our highly flexible discovery platform is applicable across many therapeutic areas.

Having achieved approval in the European Union and Great Britain for our first ever medicine in RA and UC, we remain highly committed to progressing our pipeline of drug candidates to address unmet medical needs and improve the lives of millions.

We devote substantially all of our resources to our drug discovery efforts from target discovery through clinical development, and to our commercialization efforts for filgotinib in Europe.

The components of the operating result presented in the financial statements include the following companies: Galapagos NV, Galapagos Biopharma Belgium BV, Galapagos Real Estate Belgium BV (Mechelen, Belgium); Galapagos SASU (Romainville, France); Galapagos B.V., Galapagos Biopharma Netherlands B.V. and Galapagos Real Estate Netherlands B.V. (Leiden, the Netherlands); Galapagos, Inc. and its subsidiary Xenometrix, Inc. (United States); Galapagos GmbH (Basel, Switzerland); Galapagos Biotech Ltd (Cambridge, UK), Galapagos Biopharma Germany GmbH (München, Germany), Galapagos Biopharma Spain S.L.U. (Madrid, Spain); Galapagos Biopharma Italy S.r.l. (Milan, Italy); Galapagos Biopharma Sweden AB (Stockholm, Sweden), Galapagos Biopharma Norway AS (Oslo, Norway), Galapagos Biopharma Finland Oy (Helsinki, Finland), Galapagos Biopharma Denmark ApS (Copenhagen, Denmark), Galapagos Biopharma Austria GmbH (Vienna, Austria) and Galapagos Biopharma Ireland Ltd ( Dublin, Ireland).

Our continuing operations had 1,309 employees as at December 31, 2021 (as compared to 1,304 employees as at December 31, 2020 and 1,003 employees as at December 31, 2019) mainly working in the operating facilities in Mechelen (the Belgian headquarters), the Netherlands, France, Switzerland, Germany, Italy, Spain and the United Kingdom.

On January 4, 2021, we sold our fee-for-service business Fidelta to Selvita S.A. for a total consideration of €37.1 million. Fidelta d.o.o. had 185 employees on December 31, 2020 working in the operating facilities in Croatia. We classified the assets and the associated liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020.

Impact of COVID-19 on the financial statements

To date, we have experienced limited impact on our financial performance, financial position, cash flows and significant judgements and estimates, although we continue to face additional risks and challenges associated with the impact of the outbreak.

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Summary of significant transaction

12 Months Ended

Dec. 31, 2021

Summary of significant transaction

Summary of significant transaction

2. Summary of significant transaction

On July 14, 2019 we and Gilead announced that we entered into a 10-year global research and development collaboration. Through this agreement, Gilead gained exclusive access to our innovative portfolio of compounds, including clinical and preclinical programs and a proven drug discovery platform. At inception of this collaboration in 2019, we received an upfront payment €3,569.8 million ($3.95 billion) and a €960.1 million ($1.1 billion) equity investment from Gilead.

On the closing date of the transaction (August 23, 2019) we concluded that the upfront payment implicitly included a premium for the future issuance of warrant A and initial and subsequent warrant B. The expected value of the warrants to be issued is treated as a contract liability ("warrant issuance liability") and reduces the transaction price until

approval date of the issuance of the underlying warrants. As from approval date, the allocation of the upfront payment to the respective warrant becomes fixed and future changes in the fair value of the respective warrant are recognized in profit or loss. As such, the part of the upfront payment allocated to the warrant A and initial warrant B reflects the fair value of these financial liabilities at the warrant approval date (October 22, 2019).

On November 6, 2019 Gilead exercised warrant A, which resulted in an additional equity investment of €368.0 million.

Subsequent warrant B is still subject to approval by an extraordinary meeting of shareholders and is therefore still presented as warrant issuance liability in our deferred income (we refer to note 25 for more information). The value allocated to the subsequent warrant B reflects the fair value of the underlying liability on December 31, 2019, December 31, 2020 and December 31, 2021. On December 31, 2021 the value of subsequent warrant B further decreased to €2.4 million, driven by the decrease of our share price and of the implied volatility in 2021.

At inception of this collaboration, we identified the following three performance obligations: (i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 on the global development activities of filgotinib, as a result of the revised license and collaboration agreement.

As part of the collaboration, Gilead also received option rights for GLPG1972, a Phase 2b candidate for osteoarthritis, in the United States. In November 2020, Gilead however declined to exercise its option for GLPG1972.

Since October 22, 2019, Gilead has had two representatives on the supervisory board of Galapagos (Daniel O’Day and Linda Higgins).

In Q4 2020, Gilead decided not to pursue FDA approval of the RA indication for filgotinib in the U.S. as a result of Complete Response Letter (CRL) from the Food and Drug Administration (FDA). Due to this, in December 2020 Gilead and we agreed to amend our existing collaboration for the commercialization and development of filgotinib. This resulted in the execution of the Transition and Amendment Agreement of April 3, 2021 and the Second Amended and Restated license and Collaboration Agreement of December 24, 2021, effective as of January 1, 2022.

In September 2021 we agreed together with Gilead to also take over the sponsorship of and operational and financial responsibility for the ongoing DIVERSITY clinical study, evaluating filgotinib in CD, and its long-term extension study. We intend to complete the transfer of the DIVERSITY clinical study no later than June 30, 2022. From April 1, 2022, we will also be solely responsible for all development costs for the DIVERSITY clinical study.

Gilead remains responsible for commercial activities outside of Europe.

These modifications to the collaboration with Gilead did not result in the creation of new performance obligations, and only the performance obligation related to the development activities for filgotinib has been reassessed.

We retain the following three performance obligations, of which the first one was satisfied completely in 2019; (i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 to 100/0 (for certain agreed activities (Group A activities, as defined below) on the global development activities of filgotinib, until we complete the remaining development activities.

We refer to the critical accounting judgments and key sources of estimation uncertainty section (note 4) explaining critical judgments and estimates in applying accounting policies.

Terms of the collaboration

We will fund and lead all discovery and development autonomously until the end of Phase 2. After the completion of a qualifying Phase 2 study (or, in certain circumstances, the first Phase 3 study), Gilead will have the option to acquire

a license to the compound outside Europe. If the option is exercised, we and Gilead will co-develop the compound and share costs equally. Gilead will maintain option rights to our programs through the 10-year term of the collaboration. This term can be extended for up to an additional three years thereafter for those programs, if any, that have entered clinical development prior to the end of the collaboration term. In addition a final term extension can be granted in certain circumstances. Development of GLPG1690 was discontinued in February 2021.

For GLPG1972, after the completion of the ongoing Phase 2b study in osteoarthritis, Gilead had the option to pay a $250 million fee to license the compound in the United States but declined to exercise its option in November 2020.

For all other programs resulting from the collaboration, Gilead will make a $150 million opt-in payment per program and will owe no subsequent milestones. We will receive tiered royalties ranging from 20%-24% on net sales of all our products licensed by Gilead in all countries outside Europe as part of the agreement.

Revised filgotinib collaboration

Under the revised agreement of December 2020, we assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe, providing the opportunity to build a commercial presence on an accelerated timeline. The transfer is subject to applicable local legal, regulatory and consultation requirements. Most activities have been transferred as of December 31, 2021 and the parties intend to complete the transition by December 31, 2022. Beginning on January 1, 2021, we bear the future development costs for certain studies (defined as “Group A activities”), in lieu of the equal cost split contemplated by the previous agreement. These studies initially included the DARWIN3, FINCH4, FILOSOPHY, and Phase 4 studies and registries in RA, MANTA and MANTA-RAy, the PENGUIN1 and 2 and EQUATOR2 studies in PsA, the SEALION1 and 2 studies in AS, the HUMBOLDT study in uveitis in addition to other clinical and non-clinical expenses supporting these studies and support for any investigator sponsored trials in non-IBD conditions and non-clinical costs on all current trials. The DIVERSITY study has been added to the “Group A activities” in September 2021. The existing 50/50 global development cost sharing arrangement will continue for the following studies (defined as “Group B activities”): SELECTION and its long-term extension study (LTE) in UC, DIVERGENCE 1 and 2 and their LTEs and support for Phase 4 studies and registries in Crohn’s disease, pediatric studies and their LTEs in RA, UC and Crohn’s disease, and support for investigator sponsored trials in IBD. All commercial economics on filgotinib in Europe will transfer to us as of January 1, 2022, subject to payment of tiered royalties of 8% to 15% of net sales in Europe to Gilead, starting in 2024. In addition, if the European Medicines Agency grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY trial, then royalties payable by us to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6% to 10.5% of net sales in Europe. In connection with the amendments to the existing arrangement for the commercialization and development of filgotinib, Gilead has agreed to irrevocably pay us €160 million, which is split between a €110 million payment received in 2021 and a €50 million payment to be received in 2022 and is subject to certain adjustments for higher than budgeted development costs. Upon completion of the DIVERSITY study transfer in 2022, Gilead will make a one-time payment of $15 million to us in consideration for assuming responsibility for the DIVERSITY clinical study. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. Other terms of the original license agreement remain in effect, including the remaining $295 million in development and regulatory milestones, sales-based milestone payments of up to $600 million and tiered royalties ranging from 20% – 30% payable in territories outside Europe (whereas before it was applicable for all countries outside of Belgium, France, Germany, Italy, Luxembourg, the Netherlands, Spain and the United Kingdom).

In addition, we achieved two regulatory approval milestones in 2020 totaling $105 million. No regulatory approval milestones were achieved during 2021.

Terms of the equity investment

As part of the research and development collaboration of 2019 Gilead also entered into a share subscription agreement with us. Gilead’s equity investment consisted of a subscription for new Galapagos shares at a price of €140.59 per share, representing at July 14, 2019 a 20% premium to Galapagos’ 30-day, volume-weighted average price. This equity subscription took place at closing of the transaction, on August 23, 2019 and increased Gilead’s stake in Galapagos from approximately 12.3% to 22.04% of the then issued and outstanding shares in Galapagos.

In addition, the extraordinary general meeting of shareholders of October 22, 2019 approved the issuance of warrant A and initial warrant B allowing Gilead to further increase its ownership of Galapagos to up to 29.9% of the

company’s issued and outstanding shares. The initial warrant B has a term of five years and an exercise price per share equal to the greater of (i) 120% multiplied by the arithmetic mean of the 30-day daily volume weighted average trading price of Galapagos’ shares as traded on Euronext Brussels and Euronext Amsterdam, and (ii) €140.59. Subsequent warrant B is still subject to approval by an extraordinary general meeting of shareholders. This extraordinary general meeting of shareholders shall take place between 57 and 59 months after the closing of the subscription agreement (August 23, 2019) and this warrant will have substantially similar terms, including as to exercise price, to the initial warrant B. The agreement also includes a 10-year standstill restricting Gilead’s ability to propose a business combination with or acquisition of Galapagos or increase its stake in Galapagos beyond 29.9% of the company’s issued and outstanding shares, subject to limited exceptions. On November 6, 2019 Gilead exercised warrant A and increased its ownership in Galapagos to 25.10% of the then outstanding shares. Warrant A expired in October 2020. Gilead’s ownership amounted to 25.49% at December 31, 2021.

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Significant accounting policies

12 Months Ended

Dec. 31, 2021

Significant accounting policies

Significant accounting policies

3. Significant accounting policies

Our principal accounting policies are summarized below.

BASIS OF PREPARATION AND GOING CONCERN ASSUMPTION

The consolidated financial statements are prepared in accordance with the International Financial Reporting Standards (IFRS), issued by the International Accounting Standards Board (IASB) and the interpretations issued by the IASB’s International Financial Reporting Interpretation Committee. The consolidated financial statements provide a general overview of our activities and the results achieved. They give a true and fair view of our financial position, our financial performance and cash flows, on a going concern basis.

NEW STANDARDS AND INTERPRETATIONS APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2020

New standards and interpretations applicable for the annual period beginning on January 1, 2020 did not have a material impact on our consolidated financial statements.

NEW STANDARDS AND INTERPRETATIONS APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2021

New standards and interpretations applicable for the annual period beginning on January 1, 2021 did not have a material impact on our consolidated financial statements.

STANDARDS AND INTERPRETATIONS PUBLISHED, BUT NOT YET APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2021

A number of new standards are effective for annual periods beginning on or after January 1, 2022 with earlier adoption permitted. However we have not early adopted new or amended standards in preparing our consolidated financial statements. We are currently still assessing the impact of these new accounting standards and amendments that are not yet effective but we expect no standard to have a material impact on our financial statements in the period of initial application.

The following amendments are effective for the period beginning 1 January 2022:

● Onerous Contracts – Cost of Fulfilling a Contract (Amendments to IAS 37);

● Property, Plant and Equipment: Proceeds before Intended Use (Amendments to IAS 16);

● Annual Improvements to IFRS Standards 2018-2020 (Amendments to IFRS 1, IFRS 9, IFRS 16 and IAS 41); and

● References to Conceptual Framework (Amendments to IFRS 3).

The following amendments are effective for the period beginning 1 January 2023:

● Disclosure of Accounting Policies (Amendments to IAS 1 and IFRS Practice Statement 2);

● Definition of Accounting Estimates (Amendments to IAS 8);

● Deferred Tax Related to Assets and Liabilities arising from a Single Transaction (Amendments to IAS 12); and

● IFRS 17 Insurance Contracts and Amendments to IFRS 17.

CONSOLIDATED REPORTING

The consolidated financial statements comprise the financial statements of Galapagos NV and entities controlled by Galapagos NV. Control is achieved where Galapagos NV has the power to direct the relevant activities of another entity so as to obtain benefits from its activities. The results of subsidiaries are included in the statement of operations and statement of comprehensive income from the effective date of acquisition up to the date when control ceases to exist. Where necessary, adjustments are made to the financial statements of subsidiaries to ensure consistency with our accounting policies. All intra-group transactions, balances, income and expenses are eliminated when preparing the consolidated financial statements.

INTANGIBLE ASSETS

Expenditure on research activities is recognized as an expense in the period in which it is incurred.

An internally generated intangible asset arising from our development activities is recognized only if all of the following conditions are met:

● Technically feasible to complete the intangible asset so that it will be available for use or sale

● We have the intention to complete the intangible assets and use or sell it

● We have the ability to use or sell the intangible assets

● The intangible asset will generate probable future economic benefits, or indicate the existence of a market

● Adequate technical, financial and other resources to complete the development are available

● We are able to measure reliably the expenditure attributable to the intangible asset during its development

(i) Internally generated intangible assets

The amount capitalized as internally generated intangible assets is the sum of the development costs incurred as of the date that the asset meets the conditions described above. Because of risks and uncertainties inherent to the regulatory authorizations and to the development process itself, management estimates that the conditions for capitalization are not met until we obtain regulatory approval from the competent authorities.

Currently we recognize all development costs as an expense in the period in which they are incurred, even for approved products because they do not generate separately identifiable incremental future economic benefits that can be reliably measured.

(ii) Licences, patents & know-how

Acquired in-process research and development obtained through in-licensing agreements, business combinations, collaboration agreements or separate acquisitions are capitalized as an intangible asset provided that they are separately identifiable, controlled by us and expected to provide economic benefits. As the probability criterion in IAS 38 is always considered to be satisfied for separately acquired research and development assets, upfront and milestone payments to third parties for products or compounds for which regulatory approval has not yet been obtained are recognized as intangible assets. We consider such intangible assets as not yet available for use until the moment that the underlying asset is approved and commercially launched. Amortization will commence when the underlying asset is approved for commercialization and the asset will be amortized over its useful life.

Licenses, patents and know-how will be amortized over their useful life (generally between 5 and 20 years), using the straight-line method.

Intangible assets may also consist of upfront fees paid to third party institutions in exchange for an option to negotiate a license to any of the third party’s rights in technology resulting from the collaboration. The upfront fee paid in exchange for this option is capitalized as intangible asset and amortized over the expected duration of the option.

In the event an asset has an indefinite life, this fact is disclosed along with the reasons for being deemed to have an indefinite life. Intangible assets with an indefinite useful life and intangible assets which are not yet available for use are tested for impairment annually, and whenever there is an indication that the asset might be impaired.

(iii) Software

Acquired software is recognized at cost less accumulated amortization and any impairment loss. Amortization is recognized so as to write off the cost of assets over their useful lives (generally between 3 and 5 years), using the straight-line method.

(iv) Contract costs

Contract costs are those costs we incur to obtain a contract with a customer that we would not have incurred if the contract has not been obtained and are capitalized as intangible assets only if they are expected to be recoverable. Capitalized contract costs are amortized on a systematic basis that reflects the pattern of transfer of the related promised goods or services to the customer. Costs that we would have incurred regardless of whether the contract is obtained or those costs that are not directly related to obtaining a contract would not be capitalized.

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment are recognized at cost less accumulated depreciation and any impairment loss.

Depreciation of an asset begins when it is available for use, ie when it is in the location and condition necessary for it to be capable of operating in the manner intended by management.

Depreciation is recognized so as to write off the cost of assets over their useful lives, using the straight-line method, on the following bases:

● Installation & machinery: 3–15 years

● Furniture, fixtures & vehicles: 4–10 years

Leasehold improvements are depreciated 3 -10 years, being the term of the lease, unless a shorter useful life is expected.

The other tangible assets category mainly consists of assets under construction. Assets under construction are not depreciated.

Any gain or loss incurred at the disposal of an asset is determined as the difference between the sale proceeds and the carrying amount of the asset and is recognized in profit or loss.

LEASES

All leases are accounted for by recognizing a right-of-use asset and a corresponding lease liability except for:

● Leases of low value assets; and

● Leases with a duration of 12 months or less

Liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the lease payments that are not paid at the commencement date, discounted using the rate implicit in the lease. If this rate cannot be readily determined, we will apply the incremental borrowing rate. The lease payments can include fixed payments, variable payments that depend on an index or rate known at the commencement date, expected residual value guarantees, termination penalties and extension option payments or purchase options if we are reasonably certain to exercise this option.

After initial recognition, the lease liability will be measured at amortized cost using the discount rate determined at commencement and will be re-measured (with a corresponding adjustment to the related right-of-use asset) when there is a change in future lease payments in case of renegotiation, changes of an index or rate or in case of reassessment of options.

At the commencement date, the right-of-use assets are measured at cost, comprising the amount of the initial lease liability, initial direct costs and the expected dismantling and removing costs (when we incur an obligation for these costs), less any lease incentives received from the lessors.

After initial recognition, the right-of-use assets are measured at cost and depreciated over the shorter of the underlying asset's useful life and the lease term on a straight-line basis. The right-of-use assets will be adjusted for any re-measurements of the lease liability as a result of lease modifications. The right-of-use assets are subject to impairment testing if there is an indicator for impairment, as for property, plant and equipment. The right-of-use assets are presented in the statement of financial position under the caption “Property, plant and equipment” and the lease liabilities are presented as current and non-current lease liabilities.

In determining the lease term, we consider all facts and circumstances that create an economic incentive to exercise an extension option, or not exercise a termination option. We only include extension options (or periods after termination options) in the lease term if the lease is reasonably certain to be extended (or not terminated). The assessment is reviewed if a significant event or a significant change in circumstances occurs which affects this assessment and that is within our control.

Each lease payment is allocated between the liability and financial expenses. The finance cost is charged to the income statement over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

INVENTORIES

Inventories consist of raw materials, semi-finished products and finished products purchased for resale. These inventories are initially recognized at cost, and subsequently at the lower of cost and net realizable value. Cost comprises all costs of purchase, including transportation costs, and is determined using the FIFO-method.

FINANCIAL INSTRUMENTS

Financial assets and financial liabilities are recognized on our balance sheet when we become a party to the contractual provisions of the instrument. We do not actively use currency derivatives to hedge planned future cash flows, nor do we make use of forward foreign exchange contracts, outside of the Gilead transaction, fully settled at December 31, 2019. Additionally, we do not have financial debts at December 31, 2021.

(i) Financial assets

Financial assets are initially recognized either at fair value or at their transaction price. All recognized financial assets will subsequently be measured at either amortized cost or fair value under IFRS 9 on the basis of both our business model for managing the financial assets and the contractual cash flow characteristics of the financial asset.

● a financial asset that (i) is held within a business model whose objective is to collect the contractual cash flows and (ii) has contractual cash flows that are solely payments of principal and interest on the principal

amount outstanding is measured at amortized cost (net of any write down for impairment), unless the asset is designated at fair value through profit or loss (FVTPL) under the fair value option;

● a financial asset that (i) is held within a business model whose objective is achieved both by collecting contractual cash flows and selling financial assets and (ii) has contractual terms that give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding, is measured at fair value through other comprehensive income (FVTOCI), unless the asset is designated at FVTPL under the fair value option;

● all other financial assets are measured at FVTPL.

A financial asset is classified as current when the cash flows expected to flow from the instrument mature within one year.

We derecognize a financial asset when the contractual rights to the cash flows from the asset expire, or we transfer the rights to receive the contractual cash flows on the financial asset in a transaction in which substantially all the risks and rewards of ownership of the financial asset are transferred.

We classify non-derivative financial assets into the following categories:

● financial assets at fair value through profit or loss (equity instruments, current financial investments and cash equivalents)

● financial assets at amortized cost (receivables, current financial investments and cash and cash equivalents).

Financial assets at fair value through profit or loss

Financial assets are designated at fair value through profit or loss if we manage such investments and make purchase and sale decisions based on their fair value in accordance with the investment strategy. Attributable transaction costs are recognized in profit or loss as incurred. Financial assets at fair value through profit or loss are measured at fair value, and changes therein, which take into account any dividend income, are recognized in profit or loss.

Equity instruments

We hold investments in equity instruments, which based on IFRS 9, are designated as financial assets at fair value through profit or loss. The fair value of listed investments is based upon the closing price of such securities on Euronext at each reporting date. If there is no active market for an equity instrument, we establish the fair value by using valuation techniques.

Current financial investments measured at fair value through profit or loss

Current financial investments include financial assets measured at fair value through profit or loss and may comprise short term bond funds that have a maturity equal or less than 12 months, and money market funds.

Cash equivalents measured at fair value through profit or loss

Cash equivalents measured at fair value through profit or loss may comprise bonds and money market funds that are readily convertible to cash and are subject to an insignificant risk of changes in value.

Financial assets at amortized cost

Receivables

Receivables are designated as financial assets measured at amortized cost. They are initially measured either at fair value or at transaction price, in the absence of a significant financing component.

All receivables are subsequently measured in the balance sheet at amortized cost, which generally corresponds to nominal value less expected credit loss provision.

Receivables mainly comprise trade and other receivables and current/non-current R&D incentives receivables.

The R&D incentives receivables relate to refunds resulting from R&D incentives on research and development expenses in France and Belgium. Research and development incentives receivables are discounted over the period until maturity date according to the appropriate discount rates.

Current financial investments measured at amortized cost

Current financial investments measured at amortized cost include treasury bills that have a maturity equal or less than 12 months. We apply settlement date accounting for the recognition and de-recognition of current financial investments measured at amortized cost. Current financial investments measured at amortized cost also include short-term deposits with maturities exceeding three months from the acquisition date.

Cash and cash equivalents measured at amortized cost

Cash and cash equivalents measured at amortized cost mainly comprise of notice accounts and short-term deposits that are readily convertible to cash within three months or less and that are subject to an insignificant risk of changes in value.

Cash and cash equivalents exclude restricted cash, which is presented in the line other non-current assets in the statement of financial position.

(ii) Financial liabilities

Financial liabilities are initially measured either at fair value or at their transaction price. Subsequent to initial recognition, financial liabilities are measured at amortized cost.

Financial liabilities mainly comprise trade and other liabilities.

Trade and other liabilities are comprised of liabilities that are due less than one year from the balance sheet date and are in general not interest bearing and settled on an ongoing basis during the financial year. They also include accrued expense related to our research and development project costs.

We derecognize a financial liability when its contractual obligations are discharged, cancelled or expire.

(iii) Financial instruments: derivative assets/liabilities

Financial assets and financial liabilities are recognized on our balance sheet when we become a party to the contractual provisions of the instrument.

Derivative assets and liabilities are initially measured at fair value. After initial measurement we will measure the derivatives at fair value through profit or loss.

TAXATION

Income tax in the profit or loss accounts represents the sum of the current tax and deferred tax.

Current tax is the expected tax payable on the taxable profit of the year. The taxable profit of the year differs from the profit as reported in the financial statements as it excludes items of income or expense that are taxable or deductible in other years and it further excludes items that are never taxable or deductible. Our liability for current tax is calculated using tax rates that have been enacted or substantively enacted by the balance sheet date.

Deferred income tax is provided in full, using the liability-method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the financial statements. However, the deferred income tax is not accounted for if it arises from the initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting nor taxable profit nor loss.

Deferred income tax is determined using tax rates (and laws) that have been enacted or substantively enacted by the balance sheet date and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled. Deferred tax assets are recognized to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized. As such, a deferred tax asset for the carry forward of unused tax losses will be recognized to the extent that is probable that future taxable profits will be available.

FOREIGN CURRENCIES

● Functional and presentation currency

Items included in the financial statements of each of our entities are valued using the currency of the primary economic environment in which the entity operates. The consolidated financial statements are presented in Euros, which is our presentation currency.

● Transactions and balances in foreign currency

Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of transaction. Foreign currency gains and losses resulting from the settlement of such transactions and from the translation at closing rates of monetary assets and liabilities denominated in foreign currencies are recognized in the financial result in the statement of operations.

Non-monetary assets and liabilities measured at historical cost that are denominated in foreign currencies are translated using the exchange rate at the date of the transaction.

● Financial statements of foreign group companies

The results and financial position of all our entities that have a functional currency different from Euro are translated as follows:

● Assets and liabilities for each balance sheet presented are translated at the closing rate at the date of that balance sheet;

● Income and expenses for each statement of operations are translated at average exchange rates;

● All resulting cumulative exchange differences are recognized as a separate component of equity;

● Such cumulative exchange differences are recognized in profit or loss in the period in which the foreign operation is disposed of.

RECOGNITION OF EXPENSES LINKED TO CLINICAL TRIAL MILESTONES

We recognize expenses specifically linked to clinical trial milestones with regard to patient recruitment and patient treatment (i.e. completion), incurred in carrying out clinical trials, in line with actual patient recruitment or treatment at each period end, in reference to the milestone targets for patient recruitment or treatment.

This involves the calculation of clinical trial accruals at each period end, for which an estimation of the expected full clinical trial milestone cost is required, as well as the current stage of patient recruitment or treatment.

Clinical trials usually take place over extended time periods and typically involve a set-up phase, a recruitment phase and a completion phase which ends upon the receipt of a final report containing full statistical analysis of trial results. Accruals for patient recruitment and patient completion are prepared separately for each clinical trial in progress

and take into consideration the stage of completion of each trial including the number of patients that have entered the trial and the number of patients that have been treated in the trial. In all cases, the full cost of each trial is expensed by the time the final report is received.

REVENUE RECOGNITION

Revenues to date have consisted principally of collaboration revenues, which consist of milestones, license fees, non-refundable upfront fees and royalties received in connection with collaboration and license agreements. Starting in 2021 we also have commercial revenues from the sales of Jyseleca, which are reported as “Product net sales” in our consolidated income statement. We also generated revenue from our fee-for-service activities, which is reported as discontinued operations per December 31, 2020.The revenue recognition policies can be summarized as follows:

We recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. To determine revenue recognition for agreements that we determine are within the scope of IFRS 15, we perform the following five steps:

COLLABORATION REVENUES

(i) identify the contract

In our current agreements with customers we are mainly transferring licenses on our IP and in some cases this is combined with access rights and/or providing research and development services and/or cost sharing mechanisms. In some cases our collaborations also include an equity subscription component. If this is the case, we analyze if the criteria to combine contracts, as set out by IFRS 15, are met.

(ii) identify the performance obligations in the contract

Depending on the type of the agreement, there can be one or more distinct performance obligations under IFRS 15. This is based on an assessment of whether the promises in an agreement are capable of being distinct and are distinct from the other promises to transfer goods and/or services in the context of the contract. For some of our agreements we combine the transfer of the license with the performance of research and development activities because we consider that the license is not capable of being distinct and is not distinct in the context of the contract.

(iii) determine the transaction price

Collaboration and license agreements with our commercial partners for research and development activities generally include non-refundable upfront fees; milestone payments, the receipt of which is dependent upon the achievement of certain clinical, regulatory or commercial milestones; license fees, royalties on sales and sometimes reimbursement income or profits sharing arrangements.

a/ License fees or upfront payments

If the license to our intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, we recognize revenues from non-refundable upfront fees allocated to the license at the point in time the license is transferred to the customer and the customer has the right to use the license.

For licenses that are bundled with other promises, we utilize judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. If the performance obligation is satisfied over time, revenue is then recognized based on a pattern that best reflects the transfer of control of the service to the customer.

b/ Milestone Payments other than sales based milestones

A milestone payment is only included in the transaction price to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Where milestone payments are included in the transaction price we estimate the amount to be included in the transaction price using the most likely amount method. The

transaction price is allocated to each performance obligation on a stand-alone selling price basis. We recognize revenue as or when the performance obligations under the contract are satisfied. At the end of each subsequent reporting period, we re-evaluate the probability of achievement of such milestones and any related constraint. If necessary we adjust our estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenue and earnings in the period of adjustment.

c/ Reimbursement Income for R&D Services

Collaboration and license agreements may include reimbursement or cost sharing for research and development services: such as outsourcing costs and payment for FTEs at contractual rates. R&D services are performed and satisfied over time given that the customer simultaneously receives and consumes the benefits provided by us.

Such costs reimbursements received are recognized in revenues when costs are incurred and agreed by the parties when we are acting as a principal in the scope of our stake of the R&D activities. If the later condition is not fulfilled, costs reimbursements are accounted for as a decrease of the related expenses.

d/ Sales based milestone payment and Royalties

License and collaboration agreements include sales-based royalties, including commercial milestone payments based on the level of sales, and the license has been deemed to be the predominant item to which the royalties relate. Related revenue is recognized as the subsequent underlying sales occur.

(iv) allocate the transaction price to the performance obligations in the contract

We allocate the transaction price to each performance obligation identified in the contract based upon the stand-alone selling price. The stand-alone selling price of each performance obligation is estimated by using one of the following methods: adjusted market assessment approach, the expected cost plus a margin approach or the residual approach. If management assesses that there is only one single performance obligation, the entire transaction price would be allocated to this performance obligation.

(v) recognize revenue when (or as) the entity satisfies a performance obligation

Revenue is recognized when our customer obtains control of the goods and/or services foreseen in the contracts. The control can be transferred over time or at a point in time – which results in recognition of revenue over time or at a point in time.

In case of revenue recognition over time, we use either an input model that considers estimates of the percentage of total research and development costs that are completed each period compared to the total estimated costs (percentage of completion method) or we apply an output method to measure the progress of the satisfaction of the underlying performance obligation. In other cases, depending on specific circumstances, we recognize revenue on a straight-line basis over the estimated term of the performance obligation.

PRODUCT NET SALES

Revenue on the sale of Jyseleca is recorded as “Product net sales” in our consolidated income statement.

Product net sales is the net amount of revenue recognized resulting from transferring control over our products to our customer (for example wholesalers and hospitals). Product sales revenue is recognized at a point in time when control of the goods has transferred to the customer. This is generally when the goods are delivered to the customer depending on the specific incoterms in the contract with a customer.

The amount of revenue recognized is the amount allocated to the satisfied performance obligation taking into account variable consideration. The estimated amount of variable consideration is included in the transaction price only to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration that is included in the transaction price is primarily composed of rebates, discounts, cash discounts and chargebacks granted to various customers that are part of commercial and governmental contractual arrangements or other

reimbursement programs. Shelf stock adjustments are granted to some of our customers to cover the inventory held by them at the time of a price decrease becomes effective. A liability is recognized for expected rebates, cash discounts, chargebacks or other reimbursements payable directly or indirectly to customers in relation to sales made until the end of the reporting period.

The amount of variable consideration is estimated using several elements such third-party market data, product pricing, the specific terms in the individual agreements, estimated inventory levels and the shelf life of our product. If actual results differ, these estimates will be adjusted.

Net sales are presented net of value added tax and other sales related taxes.

We refer to note 6 for detailed information per agreement and to our Critical judgments in applying accounting policies for more information.

COST OF SALES

Cost of sales includes primarily the purchase cost of the goods sold and transportation costs.

OTHER OPERATING INCOME

Grants and R&D incentives

As we carry out extensive research and development activities, we benefit from various grants and R&D incentives from certain governmental agencies. These grants and R&D incentives generally aim to partly reimburse (approved) expenditures incurred in our research and development efforts and are credited to the statement of operations, under other income, when the relevant expenditure has been incurred and there is reasonable assurance that the grants or R&D incentives are receivable.

EQUITY INSTRUMENTS

Equity instruments issued by us are measured by the fair value of the proceeds received, net of direct issue costs.

EMPLOYEE BENEFITS

a/ Defined contribution plans

Contributions to defined contribution pension plans are recognized as an expense in the statement of operations as incurred.

b/ Defined benefit plans

For defined retirement benefit plans, the cost of providing benefits is determined using the projected unit credit method, with actuarial valuations being carried out at the end of each annual reporting period. Re-measurement, comprising actuarial gains and losses, the effect of the changes to the asset ceiling (if applicable) and the return on plan assets (excluding interest), is reflected immediately in the statement of financial position with a charge or credit recognized in other comprehensive income in the period in which they occur. Re-measurement recognized in other comprehensive income is reflected immediately in retained earnings and will not be reclassified to profit or loss. Past service cost is recognized in profit or loss in the period of a plan amendment. Net interest is calculated by applying the discount rate at the beginning of the period to the net defined benefit liability or asset.

Defined benefit costs are categorized as follows:

● Service cost (including current service cost, past service cost, as well as gains and losses on curtailments and settlements)

● Net interest expenses or income

● Re-measurement

The retirement benefit obligation recognized in the consolidated statement of financial position represents the actual deficit or surplus in the defined benefit plans. Any surplus resulting from this calculation is limited to the present value of any economic benefits available in the form of refunds from the plans or a reduction in future contributions to the plans. A liability for a termination benefit is recognized at the earlier of when we can no longer withdraw the offer of the termination benefit and when we recognize any related restructuring costs.

c/ Staff bonus plan

We recognize an expense in the statement of operations for staff bonus plans.

d/ Management bonus plan

(I)Bonuses which were granted for performance years until 2018

The management board members, together with other senior managers, are eligible to receive bonuses under the Senior Management Bonus Scheme established in 2006. Pursuant to the rules of the Senior Management Bonus Scheme, 50% of the bonus is paid immediately around year-end and the payment of the remaining 50% is deferred for three years. The deferred 50% component is dependent on the Galapagos share price change relative to the Next Biotech Index (which tracks Euronext-listed biotech companies). The Galapagos share price and the Next Biotech Index at the start and end of the 3-year period is calculated by the average price over the preceding and last month of the 3-year period, respectively.

● If the Galapagos share price change is better than or equal to the change in the Next Biotech Index, the deferred bonus will be adjusted by the share price increase/decrease percentage and paid out

● If the Galapagos share price change is up to 10% worse than the change in the Next Biotech Index, 50% of the deferred bonus will be adjusted by the share price increase/decrease percentage and paid out, and the remainder will be forfeited

● If the Galapagos share price change is more than 10% worse than the change in the Next Biotech Index the deferred bonus will be forfeited

We recognize the possible payment of the deferred component of the Senior Management Bonus Schemes within three years at the moment that the bonus amount is determined, based on the fair value of the liability at each reporting period. The fair value of the liability is measured by use of the Monte Carlo valuation model taking into consideration (a) the average reference price of the Galapagos share and Next Biotech Index, (b) the average price of the reporting period of the Galapagos share and the Next Biotech Index, (c) the simulation of the evolution of the Galapagos share price and the Next Biotech Index based on their volatility and correlation until maturity of the bonus, (d) the applicable discount rates at the end of the reporting period and (e) the probability of the number of beneficiaries assumed to stay with us until maturity of the bonus. The changes in fair value are recognized in profit or loss for the period.

(II)Bonuses which were granted for performance year 2019 and beyond

The management board members, together with other senior managers are eligible to receive a bonus based on achievement of personal and corporate objectives. This bonus is paid in cash.

SHARE-BASED PAYMENTS

a/ Equity-settled share based payments

We grant equity-settled incentives to certain employees, members of the supervisory board and consultants in the form of subscription rights. Equity-settled subscription rights are measured at fair value at the date of acceptance. The fair value determined at the acceptance date of the subscription rights is expensed over time until the end of the vesting period, based on our estimate of subscription right warrants that are expected to be exercised. Fair value is measured by use of the Black & Scholes model. The expected life used in the model has been adjusted, based on management’s best estimate, for the effects of non-transferability, exercise restrictions, and behavioral considerations.

b/ Long-term incentive plans in RSU’s (Restricted Stock Units)

Management board members and other employees are granted RSU’s. An RSU is a grant that takes the form of a promise that employees will receive Galapagos stock in the future and it will be payable, at the company’s discretion in cash or in shares, upon completion of a certain vesting period. Each RSU reflects the value of one Galapagos share.

The RSU’s are measured based on the average share price over the 30-calendar day period preceding the measurement date. We recognize the corresponding expense and liability over the vesting period. The fair value of the liability is re-measured at each reporting date because currently it is management’s intention to settle the RSU’s in cash.

PROVISIONS

Provisions are recognized in the statement of financial position when we have a present obligation as a result of a past event; when it is probable that an outflow of resources embodying economic benefits will be required to settle the obligations and a reliable estimate can be made of the amount of the obligations. The amount recognized as a provision is the best estimate of the expenditure required to settle the present obligation at the balance sheet date. If the effect is material, provisions are determined by discounting the expected future cash flows at a pre-tax rate that reflects current market assessments of the time value of the money and, when appropriate, the risk specific to the liability.

IMPAIRMENT

(i) Financial assets

The impairment loss of a financial asset measured at amortized cost is calculated based on the expected loss model.

For trade receivables, in the absence of a significant financing component, the loss allowance is measured at an amount equal to lifetime expected credit losses. Those are the expected credit losses that result from all possible default events over the expected life of those trade receivables.

Impairment losses are recognized in the consolidated statement of operations.

(ii) Property, plant and equipment and intangible assets

For intangible assets with an indefinite life or intangible assets not available for use yet, we perform an impairment test at least on an annual basis. Furthermore we review at each balance sheet date the carrying amount of our tangible and intangible assets to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss (if any). Where the asset does not generate cash flows that are independent from other assets, we estimate the recoverable amount of the cash-generating unit to which the asset belongs.

If the recoverable amount of an asset or cash generating unit is estimated to be less than the carrying amount, the carrying amount of the asset is reduced to its recoverable amount. An impairment loss is recognized as an expense immediately.

When an impairment loss subsequently reverses, the carrying amount of the asset is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined, had no impairment loss been recognized for the asset in prior years. A reversal of an impairment loss resulting from a sale of a subsidiary is recognized as income. In other cases impairment losses of goodwill are never reversed.

NET INCOME / LOSS PER SHARE

Basic net income/loss per share is computed based on the weighted average number of shares outstanding during the period. Diluted net income per share is computed based on the weighted average number of shares outstanding including the dilutive effect of warrants, if any.

SEGMENT REPORTING

We currently have one operating and reportable segment. Prior to the disposal of our fee-for-service business Fidelta our reportable segments were R&D and fee-for-service business. Fidelta is reported as discontinued operations at December 31, 2020 and at December 31, 2021.

ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS

A discontinued operation is a component of an entity that either has been disposed of, or that is classified as held for sale. It must either: represent a major separate line of business or geographical area of operations; be part of a single coordinated disposal plan; or be a subsidiary acquired exclusively with a view to resale.

Intercompany transactions between continuing and discontinued operations are eliminated against discontinuing operations.

Non-current assets and disposal groups are classified as assets held for sale if their carrying amount is to be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the asset (or disposal group) is available for immediate sale in its present condition.

They are stated at the lower of carrying amount and fair value less costs to sell with any resulting impairment recognized. Assets related to discontinued operations and assets of disposal group held for sale are not depreciated.

On January 4, 2021, we sold of our fee-for-service business Fidelta. We classified the assets and the associated liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020.

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Critical accounting judgments and key sources of estimation uncertainty

12 Months Ended

Dec. 31, 2021

Critical accounting judgments and key sources of estimation uncertainty

Critical accounting judgments and key sources of estimation uncertainty

4. Critical accounting judgments and key sources of estimation uncertainty

In the application of the accounting policies, we are required to make judgments, estimates and assumptions about the carrying amounts of assets and liabilities that are not readily apparent from other sources. The estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates.

Our estimates and assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period or in the period of the revisions and future periods if the revision affects both current and future periods.

The following are the critical judgments that we have made in the process of applying the accounting policies and the key sources of estimation that have the most significant effect on the amounts recognized in the consolidated financial statements presented elsewhere in this annual report.

Critical judgments in applying accounting policies

IFRS 15 – Revenue recognition Gilead

Our critical judgments were as follows:

Identification of the contract

● Despite our obligation to pay future sales-based royalties to Gilead and a change in the governance structure for the development activities, management judged that all activities are still beneficial for the further development of filgotinib, for which Gilead still owns the ex-Europe rights. All contract modifications have thus been analyzed following the requirements of IFRS 15 as we concluded that Gilead is still to be considered as a customer. This is also supported by the fact that we concluded that there continues to be only one performance obligation with respect to filgotinib.

Identification of the performance obligation

● The modifications of 2020 and 2021 did not give rise to new performance obligations. There was only a change in scope and price of the existing filgotinib performance obligation, which was only partly satisfied at the time of the modification. It’s management’s judgement that the Group A and Group B development activities (see note 2 for more details) still to be performed are interrelated and thus cannot be seen as separate performance obligations. Based on this, the contract modification has been treated on a cumulative catch-up basis under IFRS 15.

Allocation of the total transaction price

● The increased fixed consideration as result of the modification has been allocated in its entirety to the filgotinib performance obligation. We assessed that the contract modification only changes the scope of the filgotinib performance obligation and the change in both fixed and variable consideration is reflective of the updated stand-alone selling price for the remaining activities of this performance obligation. If we would have concluded that the increased consideration was not, or only partially, related to the filgotinib performance obligation, the consideration would have been potentially allocated to other performance obligations in the contract, which would alter the timing of revenue recognition.

● The denominator used in the calculation of the percentage of completion reflects our best estimate of the total costs to complete the filgotinib performance obligation. These costs were assessed considering management’s best estimate of the design and duration of ongoing and planned clinical trials.

Key sources of estimation uncertainty

The following are the key sources of estimation uncertainty that have the most significant effect on the amounts recognized in our consolidated financial statements for the year ended December 31, 2021.

Costs to complete the filgotinib performance obligation

●The denominator used in the calculation of the percentage of completion reflects our best estimate of the total costs to complete the filgotinib performance obligation (which is composed of the actual costs already incurred at reporting date and our best estimate of the remaining costs to complete the performance obligation). As our estimate of the costs is depending on the evolution of the development activities, it may be subject to change in the future. If the outcome of certain activities would be different from the assumptions that we made, it could lead to a material adjustment to the total estimated costs, resulting in a reallocation of revenue between current and future periods. Revenue recognized for upfront payments and milestone payments in 2021 amounted to €235.7 million. Our total deferred income balance related to this filgotinib performance obligation amounts to €604.9 million on December 31, 2021. At reporting date, had our best estimate of the remaining cost to complete the filgotinib performance obligation been increased by 5%, this would have resulted in a decrease in revenue recognition in 2021 of €16.7 million and a corresponding increase in current and non-current deferred income. Had our best estimate of the remaining cost to complete the filgotinib performance obligation been decreased by 5%, this would have resulted in an increase in revenue recognition in 2021 of €17.5 million and a corresponding decrease in current and non-current deferred income.

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Segment information

12 Months Ended

Dec. 31, 2021

Segment information

Segment information

5. Segment information

We operate in one segment, which is developing and commercializing medicines with novel modes of action. Operating segments are identified as components of an entity about which separate discrete financial information is available for evaluation by the chief operating decision maker in making decisions regarding resource allocation and assessing performance. The chief operating decision maker made such decisions and assessed performance at the company level, as one segment.

GEOGRAPHICAL INFORMATION

In 2019, 2020 and 2021, our continuing operations were mainly located in Belgium, France, the Netherlands, Germany, Italy, Spain, Switzerland and United Kingdom.

Following table summarizes the collaboration revenues by destination of customer:

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
United States of America	€	467,978	€	472,445	€	793,873
Europe		2,114		5,605		41,028
Total collaboration revenues	€	470,093	€	478,051	€	834,901

Following table summarizes the collaboration revenues by major customers:

		Year ended December 31,
		2021			2020				2019
		(Euro, in thousands)	%		(Euro, in thousands)	%			(Euro, in thousands)	%
Gilead:
United States of America (1)	€	467,978	100%	€	472,445	99%		€	793,873	95%
Europe (1)		2,071	0%		1,460	0%			(4,570)	(1)%
AbbVie:
Europe		—	0%		(52)	0%			26,356	3%
Novartis:
Europe		—	0%		4,125	1%			19,177	2%
Total revenues from major customers	€	470,049	100%	€	477,978	100%	€	€	834,836	100%

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019, included a negative catch-up effect on closing date of €245.9 million resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

As of December 31, 2021, we held €197.6 million of non-current assets (€170.9 million in 2020; €91.0 million in 2019) distributed as follows:

	December 31,
	2021		2020		2019(*)
		(Euro, in thousands)
Belgium	€	98,295	€	113,524	€	57,007
France		21,051		18,398		18,102
The Netherlands		66,621		28,210		7,951
Croatia		—		—		6,182
Switzerland		7,181		7,668		1,057
Spain		3,029		2,755		—
Other		1,438		388		681
Total non-current assets	€	197,615	€	170,943	€	90,979

(*) In accordance with IFRS 8 we only present the total of the property, plant and equipment and intangible assets in this disclosure note. This is a change in presentation compared to the amounts that were published in the disclosure note for the year ended December 31, 2019. We elected to adjust the historical consolidated financial information presented in this disclosure note to reflect this change in presentation.

As the net assets associated with Fidelta d.o.o. (Croatia) will be recovered principally through a sale transaction rather than through continuing use, we have classified these assets and the associated liabilities as held for sale in our financial statements for the year ended December 31, 2020.

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Total revenues

12 Months Ended

Dec. 31, 2021

Total revenues

Total revenues

6. Total revenues

PRODUCT NET SALES

We reported net sales of Jyseleca for the year ended December 31, 2021 amounting to €14.8 million, which reflects the net sales booked by Galapagos after the transition from Gilead. Our counterparties for the sales of Jyseleca during 2021 were hospitals and wholesalers located in Belgium, the Netherlands, France, Italy, Spain and Germany. Net sales exclusively consisted of sales of Jyseleca.

COLLABORATION REVENUES

The following table summarizes details of collaboration revenues for the years ended December 31, 2021, 2020 and 2019 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, and royalties.

	Over time	Point in time		2021		2020		2019
				(Euro, in		(Euro, in		(Euro, in
				thousands)		thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	433,884	€	411,417	€	812,058
Gilead collaboration agreement for ziritaxestat		Ö		-		-		666,968
Gilead collaboration agreement for filgotinib (1)	Ö			203,301		181,816		62,602
Gilead collaboration agreement for drug discovery platform	Ö			230,582		229,601		80,918
AbbVie collaboration agreement for CF	Ö			-		-		1,569
Milestone payments				32,408		46,261		2,878
Gilead collaboration agreement for filgotinib (1)	Ö			32,408		46,261		(21,187)
AbbVie collaboration agreement for CF	Ö			-		-		24,065
Reimbursement income				-		4,073		19,900
Novartis collaboration agreement for MOR106	Ö			-		4,125		19,177
AbbVie collaboration agreement for CF	Ö			-		(52)		723
Royalties				3,801		16,300		66
Gilead royalties on Jyseleca		Ö		3,757		16,227		-
Other royalties		Ö		43		72		66
Total collaboration revenues			€	470,093	€	478,051	€	834,901

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019 included a negative catch-up effect on closing date of €245.9 million resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

The below table summarizes the transaction price of our collaboration with Gilead.

	December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020		Other movements in 2021		Filgotinib amendment (September 6, 2021)		December 31, 2021
Allocation of transaction price
Upfront consideration	€	3,845,373			€	160,000	€	4,005,373			€	12,643	€	4,018,016
Milestones achieved		104,171	€	90,192				194,363						194,363
Royalties		—		16,227				16,227	€	3,757				19,984
Impact initial valuation of share subscription		124,604						124,604						124,604
		4,074,148		106,419		160,000		4,340,567		3,757		12,643		4,356,967
Less :
Warrants issuance liabilities
Warrant A		(43,311)						(43,311)						(43,311)
Initial warrant B		(2,545)						(2,545)						(2,545)
Subsequent warrant B		(16,184)		8,325				(7,859)		5,417				(2,442)
		4,012,108		114,744		160,000		4,286,852		9,174		12,643		4,308,669
Allocation to performance obligations
Ziritaxestat		666,967						666,967						666,967
Filgotinib (1)		1,060,395		106,419	€	160,000		1,326,814		3,757	€	12,643		1,343,214
Drug discovery platform (10 years)	€	2,284,747	€	8,325			€	2,293,072	€	5,417			€	2,298,489

(1)With regard to the additional consideration received as a result of the Option, License and Collaboration agreement (July 14, 2019) allocated to the filgotinib performance obligation, we assumed the existence of a significant financing component estimated to €44.5 million as of December 31, 2019 reflecting the time value of money on the estimated recognition period. This financing component was reassessed to €55.3 million as of December 31,2020, and to €57.3 million at December 31, 2021.

A summary of our main contracts with customers is given below:

Collaboration with Gilead

We refer to note 2 of this financial report for a general description of our collaboration with Gilead.

We retain the following three performance obligations, of which the first one was satisfied completely in 2019; (i) the transfer of an extended license on GLPG1690, (ii) the granting of exclusive access to our drug discovery platform (i.e. the IP, technology, expertise and capabilities) during the collaboration period and exclusive option rights on our current and future clinical programs after Phase 2 (or, in certain circumstances, the first Phase 3 study) outside Europe and (iii) an increased cost share from 20/80 to 50/50 to 100/0 (for Group A activities only) on the global development activities of filgotinib, until we complete the remaining development activities (Group A and Group B activities).

We concluded as follows:

Determination of the total transaction price

● In connection with this agreement with Gilead, we recognized a deferred income and an offsetting current financial asset (derivative) of €85.6 million upon signing of the share subscription agreement with Gilead as required under IFRS 9. The deferred income has been added to the transaction price at inception of the agreement because it is considered to be part of the overall consideration received for the three performance obligations.

● We considered that the transaction price included a premium paid by Gilead (through the upfront payment) to acquire warrants (warrant A and warrant B) in the future, upon approval by the shareholders. We measured both warrants at fair value and recognized a warrant issuance liability at closing of the transaction for the same amount (as part of the current deferred income line). This liability is re-measured at each reporting period with a corresponding impact on the allocation of the transaction price to the performance obligation relating to the drug discovery platform as long as the warrants are not approved by the shareholders. Due to the fact that warrant A and initial warrant B were already approved in 2019, only the remeasurement of

subsequent warrant B still has an impact on the transaction price considered for the revenue recognition of the performance obligation relating to the drug discovery platform.

● We assessed that the contract modifications of December 15, 2020 and of September 6, 2021 only change the scope of the filgotinib performance obligation and the changes in both fixed and variable consideration are reflective of the updated stand-alone selling price for the remaining activities of this performance obligation. As a result of these modifications, there were increases in the transaction prices of €160.0 million and $15 million, respectively, which have been allocated in their entirety to the filgotinib performance obligation.

Financing component

● Management has considered it is appropriate to adjust the part of the transaction price that was allocated to the filgotinib performance obligation, for the time value of money. The additional consideration as a result of the contract modification of December 15, 2020 has also been adjusted for the time value of money.

License on GLPG1690

● This performance obligation is completely satisfied at December 31, 2019. Following the discontinuation of the ziritaxestat trials, we do not expect future milestone payments or royalties.

● After granting the license for GLPG1690, we will share Phase 3 costs equally with Gilead. Any cost reimbursement from Gilead was not recognized as revenue but accounted as a decrease of the related expenses.

Filgotinib amendment

● There is one single performance obligation under IFRS 15: the transfer of a license combined with performance of R&D activities. This is because we considered that the license is not distinct in the context of the contract.

● The transaction price is currently composed of a fixed part, being non-refundable upfront and license fees and a variable part, being milestone payments, sales based milestones and sales based royalties, and cost reimbursements for R&D activities delivered. Milestone payments are included in the transaction price of the arrangement to the extent that it is highly probable that a significant reversal of revenue will not occur. Milestone payments received from Gilead are recognized in revenue over time till the end of the development plan. Sales based milestones and sales based royalties are also part of the arrangement and are recognized as revenues at a point in time at the moment they occur. During 2020 and 2021 we reported respectively €16.2 million and €3.8 million of revenues from royalties from Gilead.

● Revenues, excluding sales based milestones and sales based royalties, are recognized over time through satisfaction of the performance obligation. The "cost-to-cost" input model is applied to measure the progress of the satisfaction of this performance obligation. The estimated costs to complete the performance obligation have been reassessed as a result of the contract modifications from 2020 and 2021.

Access rights to the drug discovery platform, option rights and R&D activities

● The revenue allocated to the drug discovery platform will be recognized over time as Gilead receives exclusive access to our drug discovery platform and option rights on our current and future pipeline as well as R&D activities during the collaboration term. Management concluded that an equal spread over the collaboration period is the most reliable and appropriate recognition method.

● At inception of the collaboration (July 2019) we assessed the appropriate period over which to recognize the drug discovery platform revenue to be 10 years. This is because we granted exclusive rights over a 10-year period. However, if at the end of the 10-year period, some programs in existence as of this time would have reached the clinic (i.e. IND filed with regulatory authorities), the rights for those specific programs may be extended, for a maximum of three years. This critical estimate is reassessed at each year-end based on the evolution of our pipeline and is still valid per December 31, 2021.

Collaboration with Novartis

● Together with our collaboration partner MorphoSys, we closed a license agreement with Novartis for MOR106 in July 2018. MorphoSys and we received an equal share of an upfront payment of €95 million and were entitled to potential future milestone payments and royalties. Novartis would bear all future research, development, manufacturing and commercialization costs related to MOR106. Costs reimbursements received from Novartis were recognized in revenues when costs were incurred and agreed by the parties as we were acting as a principal in the scope of the performance of the R&D activities.

On October 28, 2019, we announced the end of the clinical development program of MOR106 in AtD.

On December 17, 2019, Novartis sent us a termination notice, informing us of its decision to terminate the agreement in its entirety. The termination became effective in 2020.

Collaboration with AbbVie

We concluded as follows for the related revenue recognition:

● There was one single performance obligation under IFRS 15: the transfer of a license combined with performance of R&D activities. This was because we considered that the license was not capable of being distinct and was not distinct in the context of the contract.

● The transaction price of our agreement with AbbVie was composed of a fixed part, being upfront license fees, and a variable part, being milestone payments and cost reimbursements for R&D activities delivered. Milestone payments were only included in the transaction price to the extent that it was highly probable that a significant reversal in the amount of cumulative revenue recognized would not occur when the uncertainty associated with the variable consideration is subsequently resolved. Given the nature of our industry, we only consider this once the milestone event is achieved. Sales based milestones and sales based royalties are a part of our arrangement but are not yet included in our revenues.

● The transaction price was allocated to the single performance obligation and revenues were recognized over the estimated service period based on a pattern that reflects the transfer of the license and progress to complete satisfaction of the R&D activities. This is because we considered that there is a transformational relationship between the license and the R&D activities to be delivered.

● We chose an input model to measure the satisfaction of the single performance obligation that considers a percentage of costs incurred for this program that are completed each period (percentage of completion method).

● Costs reimbursements received from AbbVie were recognized in revenues when costs were incurred and agreed by the parties as we were acting as a principal in the scope of our stake of the R&D activities of this license and collaboration agreements.

● The second amended and restated collaboration agreement signed on October 24, 2018 was assessed to be a contract modification including a change in scope and in pricing as the remaining goods or services were not distinct and form part of the single performance obligation that was partially satisfied at the date of the contract modification. We concluded that we must account for this second amended and restated collaboration agreement as if it was part of the existing contract and recognized an adjustment to revenue to reflect the contract modification on the transaction price and on the measure of progress towards satisfaction of the performance obligation.

The performance obligation related to this agreement is considered being fully satisfied at December 31, 2019.

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Operating costs and other operating income

12 Months Ended

Dec. 31, 2021

Income and expenses

Operating costs and other operating income

7.      Operating costs and other operating income

RESEARCH AND DEVELOPMENT EXPENDITURE

The following table summarizes research and development expenditure for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(165,239)	€	(161,509)	€	(118,875)
Subcontracting		(251,085)		(301,841)		(255,725)
Disposables and lab fees and premises costs		(24,025)		(22,349)		(19,573)
Depreciation		(17,518)		(11,707)		(9,330)
Professional fees		(15,862)		(12,692)		(1,834)
Other operating expenses		(17,978)		(13,570)		(14,754)
Total R&D expenses	€	(491,707)	€	(523,667)	€	(420,090)

The table below summarizes our research and development expenditure for the years ended December 31, 2021, 2020 and 2019, broken down by program.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Filgotinib program	€	(171,204)	€	(126,879)	€	(100,032)
Ziritaxestat program		(26,725)		(55,902)		(75,951)
OA program on GLPG1972		(2,285)		(22,966)		(19,958)
Toledo program		(91,957)		(87,107)		(47,204)
TYK2 program on GLPG3667		(27,141)		(20,199)		(10,728)
AtD program on MOR106		(112)		(7,618)		(24,051)
Other programs		(172,284)		(202,996)		(142,166)
Total R&D expenses	€	(491,707)	€	(523,667)	€	(420,090)

SALES AND MARKETING EXPENSES

The following table summarizes the sales and marketing expenses for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(59,102)	€	(31,727)	€	(7,558)
Depreciation		(504)		(140)		(61)
External outsourcing costs		(62,321)		(31,885)		(7,558)
Sales and marketing expenses recharged to/from (-) Gilead		59,699		4,711		(8,164)
Professional fees		(532)		(3,420)		(459)
Other operating expenses		(7,196)		(4,007)		(777)
Total sales and marketing expenses	€	(69,956)	€	(66,468)	€	(24,577)

GENERAL AND ADMINISTRATIVE EXPENSES

The following table summarizes the general and administrative expenses for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(71,190)	€	(70,110)	€	(51,204)
Depreciation and impairment		(16,621)		(5,147)		(1,421)
Legal and professional fees		(26,072)		(25,592)		(11,568)
Other operating expenses		(27,016)		(17,908)		(8,190)
Total general and administrative expenses	€	(140,899)	€	(118,757)	€	(72,382)

OTHER OPERATING INCOME

The following table summarizes other operating income for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Grant income	€	7,334	€	5,452	€	6,549
R&D incentives		44,888		45,951		43,923
Other income		1,526		804		425
Total other operating income	€	53,749	€	52,207	€	50,896

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Staff costs

12 Months Ended

Dec. 31, 2021

Staff costs

Staff costs

8. Staff costs

The following table illustrates the personnel costs for the years 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Wages and salaries	€	(175,167)	€	(139,681)	€	(113,660)
Social security costs		(29,934)		(26,471)		(14,566)
Pension costs		(8,467)		(7,337)		(4,715)
Costs related to subscription right plans		(70,726)		(79,959)		(38,297)
Other personnel costs		(11,237)		(9,897)		(6,399)
Total personnel costs	€	(295,531)	€	(263,345)	€	(177,637)

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Fair value re-measurement of share subscription agreement and warrants granted to Gilead

12 Months Ended

Dec. 31, 2021

Fair value re-measurement of share subscription agreement and warrants granted to Gilead

Fair value re-measurement of share subscription agreement and warrants granted to Gilead

9. Fair value re-measurement of share subscription agreement and warrants granted to Gilead

Total fair value re-measurement for the years ended December 31, 2021, 2020 and 2019, can be split up as follows:

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Fair value re-measurement of the share subscription agreement	€	—	€	—	€	(142,350)
Fair value re-measurement of warrant A		—		—		(35,642)
Fair value re-measurement of initial warrant B		2,960		3,034		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	2,960	€	3,034	€	(181,644)

Fair value re-measurement of the Gilead share subscription agreement
	(Euro, in thousands)
Fair value of financial asset at signing date	€	85,601
Change in fair value recorded in profit or loss		(142,350)
Fair value of financial liability at closing date		(56,749)
Derecognition at closing date		56,749
Fair value on December 31, 2019	€	—

Fair value re-measurement of the financial instrument related to the issuance of warrant A
	(Euro, in thousands)
Fair value of financial liability at warrant approval date	€	(43,311)
Change in fair value recorded in profit or loss		(35,642)
Derecognition at warrant A exercise date		78,953
Fair value on December 31, 2019	€	—

Fair value re-measurement of the financial instrument related to the issuance of initial warrant B	2021		2020		2019
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(3,164)	€	(6,198)
Fair value of financial liability at warrant approval date					€	(2,545)
Change in fair value recorded in profit or loss		2,960		3,034		(3,653)
Fair value on December 31,	€	(204)	€	(3,164)	€	(6,198)

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Other financial income / expenses

12 Months Ended

Dec. 31, 2021

Income and expenses

Other financial income / expenses

10. Other financial income / expenses

The following table summarizes other financial income and expense for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Other financial income:
Interest on bank deposit	€	2,865	€	10,030	€	14,305
Effect of discounting long term R&D incentives receivables		93		93		93
Currency exchange gain		60,727		4,697		775
Fair value gain on financial assets held at fair value through profit or loss		—		2,397		5,355
Fair value gain on current financial investments		6,763		—		611
Gain upon sale of financial assets held at fair value through profit or loss		—		—		2
Other finance income		100		1,450		248
Total other financial income		70,548		18,667		21,389
Other financial expenses:
Interest expenses		(11,656)		(9,389)		(1,268)
Effect of discounting long term deferred income		(9,289)		(16,278)		(6,900)
Currency exchange loss		(4,235)		(110,416)		(47,720)
Fair value loss on financial assets held at fair value through profit or loss		(4,919)		—		—
Loss upon sale of financial assets held at fair value through profit or loss		—		(88)		—
Fair value loss on current financial investments		—		(15,901)		(3,700)
Other finance charges		(812)		(773)		(380)
Total other financial expense		(30,911)		(152,844)		(59,968)
Total net other financial expense (-)/ income	€	39,637	€	(134,177)	€	(38,579)

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Income Taxes

12 Months Ended

Dec. 31, 2021

Income Taxes

Income Taxes

11. Income taxes

INCOME TAXES

The following table summarizes the income tax recognized in profit or loss for the years ended December 31, 2021, 2020 and 2019.

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Continuing operations
Current tax	€	(2,020)	€	(1,069)	€	(1,372)
Deferred tax		(404)		(157)		1,537
Income taxes	€	(2,423)	€	(1,226)	€	165

TAX LIABILITIES

The below table illustrates the tax liabilities related captions in the consolidated statement of financial positionas at December 31, 2021, 2020 and 2019.

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Current tax payable	€	1,782	€	1,248	€	2,037
Total tax liabilities	€	1,782	€	1,248	€	2,037

On December 31, 2021, the tax liabilities were primarily related to our subsidiaries operating on a cost plus basis.

TAXES RECOGNIZED IN STATEMENT OF OPERATIONS

For the purpose of the disclosure below corporation tax was calculated at 25% (2020: 25%, 2019: 29.58%)—which is the tax rate applied in Belgium—on the estimated assessable profit for the year. The applied tax rate for other territorial jurisdictions was the tax rate that is applicable in these respective territorial jurisdictions on the estimated taxable result of the accounting year.

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Income/loss (-) before tax	€	(122,999)	€	(309,775)	€	148,525
Income tax debit/credit (-), calculated using the Belgian statutory tax rate on the accounting income/loss (-) before tax (theoretical)		(30,750)		(77,444)		43,934
Tax expenses/income (-) in statement of operations (effective)		2,423		1,226		(165)
Difference in tax expense/income to explain	€	33,173	€	78,670	€	(44,097)
Effect of tax rates in other jurisdictions	€	(582)	€	184	€	960
Effect of non-taxable revenues		(9,413)		(10,196)		(13,079)
Effect of share based payment expenses without tax impact		17,682		19,990		10,318
Effect of expenses/income (-) not subject to tax		(907)		(639)		53,394
Effect of non tax-deductible expenses		3,812		1,053		724
Effect of recognition of previously non-recognized deferred tax assets		(1,411)		(475)		(2,286)
Effect of tax losses (utilized) reversed		(404)		(150)		(136)
Effect of under or over provision in prior periods		(840)		(25)		30
Effect of non-recognition of deferred tax assets		25,613		69,141		47,413
Effect of derecognition of previously recognized deferred tax assets		135		157		—
Effect of use of investment deduction		(512)		(370)		—
Effect of use of IID		—		—		(141,435)
Total explanations	€	33,173	€	78,670	€	(44,097)

Non-taxable revenues for the years ended December 31, 2021, 2020 and 2019 related to non-taxable subsidies and tax credits. Expenses/income (-) not subject to tax for the years ended December 31, 2021, December 31, 2020 and December 31, 2019, mainly consisted of the fair value re-measurement of the derivative financial liabilities related to the share subscription agreement and the warrants granted to Gilead (see note 9). The use of the IID for the year ended December 31, 2019 referred to the “innovation income deduction” regime in Belgium. This regime allows net profits attributable to revenue from among others patented products (or products for which the patent application is pending) to be taxed at a lower effective tax rate than other revenues. The effective tax rate can thus be reduced up to 3.75%.

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Income/loss (-) per share

12 Months Ended

Dec. 31, 2021

Income/loss (-) per share

Income/loss (-) per share

12. Income/loss (-) per share

Basic income/loss (-) per share is calculated by dividing the net income/loss (-) attributable to shareholders by the weighted average number of ordinary shares outstanding during the year. Diluted income/loss (-) per share is calculated based on the weighted average number of shares (diluted) also considering outstanding warrants, for which our average share price of the year was higher than the exercise price.

The possible increase in the number of shares resulting from the outstanding initial warrant B has not been included in the calculation of the diluted income per share as at December 31, 2019 because they were antidilutive.  

Income/loss (-) per share

	Year ended December 31,
	2021		2020		2019
Income/loss (-) per share:
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(103,231)	€	(305,436)	€	149,845
Number of shares (thousands)
Weighted average number of shares for the purpose of basic income/loss (-) per share		65,500		65,075		57,614
Basic income/loss (-) per share (Euros)	€	(1.58)	€	(4.69)	€	2.60
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(103,231)	€	(305,436)	€	149,845
Number of shares (thousands)
Weighted average number of shares for the purpose of diluted income/loss (-) per share		65,500		65,075		57,614
Number of dilutive potential ordinary shares		—		—		2,498
Diluted income/loss (-) per share (Euros)	€	(1.58)	€	(4.69)	€	2.49

As our operations reported a net loss in 2021 and 2020, the outstanding warrants (specified in note 30) have an anti-dilutive effect rather than a dilutive effect. Consequently, basic and diluted loss per share were the same for 2021 and 2020.

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Intangible assets

12 Months Ended

Dec. 31, 2021

Intangible assets

Intangible assets

13. Intangible assets

	Software & databases		Brands, licenses, patents & know-how		Contract costs		Total
	(Euro, in thousands)
Acquisition value
On January 1, 2019	€	9,111	€	2,719	€	—	€	11,832
Additions		5,463		2,453		15,384		23,300
Sales and disposals		(64)						(64)
Translation differences		31						31
On December 31, 2019		14,541		5,172		15,384		35,099
Additions		9,494		39,299				48,793
Sales and disposals		(17)						(17)
Reclassifications to assets held for sale		(159)		(38)				(197)
Translation differences		(143)		(1)				(144)
On December 31, 2020		23,717		44,432		15,384		83,534
Additions		2,423		1,250				3,673
Sales and disposals		(1,643)		(5,753)				(7,396)
Translation differences		57						57
On December 31, 2021	€	24,554	€	39,929	€	15,384	€	79,868
Amortization and impairment
On January 1, 2019	€	7,250	€	949	€	—	€	8,200
Amortization		816		678		512		2,006
Sales and disposals		(63)						(63)
Translation differences		31						31
On December 31, 2019		8,034		1,626		512		10,173
Amortization		2,303		2,289		1,538		6,130
Sales and disposals		(17)						(17)
Reclassifications to assets held for sale		(143)		(33)				(176)
Translation differences		(142)						(142)
On December 31, 2020		10,034		3,883		2,050		15,968
Amortization		3,529		2,053		1,538		7,120
Impairment				4,016				4,016
Sales and disposals		(1,643)		(5,753)				(7,396)
Translation differences		57						57
On December 31, 2021	€	11,977	€	4,199	€	3,588	€	19,765
Carrying amount
On December 31, 2019	€	6,507	€	3,546	€	14,872	€	24,927
On December 31, 2020	€	13,683	€	40,549	€	13,334	€	67,565
On December 31, 2021	€	12,577	€	35,730	€	11,796	€	60,103

On December 31, 2021, our balance sheet did not hold any internally generated assets capitalized as intangible asset.

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Property, plant and equipment

12 Months Ended

Dec. 31, 2021

Property, plant and equipment

Property, plant and equipment

14. Property, plant and equipment

FULLY OWNED	Land & leasehold improvements		Installation & machinery		Furniture, fixtures & vehicles		Other tangible assets		Total
	(Euro, in thousands)
Acquisition value
On January 1 , 2019	€	5,011	€	38,031	€	3,452	€	4,827	€	51,321
Additions		273		6,382		649		15,076		22,380
Sales and disposals				(1,521)		(97)				(1,618)
Reclassifications				1,792		3		(1,795)		—
Reclassifications to right of use								(251)		(251)
Translation differences				(30)		22				(8)
On December 31, 2019		5,284		44,655		4,028		17,856		71,823
Additions		885		3,737		1,824		32,218		38,664
Sales and disposals		(51)		(1,096)		(81)				(1,228)
Reclassifications		10,625		(623)		2,084		(12,086)		—
Reclassifications to assets held for sale		(2)		(8,938)		(484)		(686)		(10,110)
Translation differences		(2)		(127)		(19)		(30)		(178)
On December 31, 2020		16,739		37,607		7,352		37,273		98,972
Additions		1,924		4,453		434		46,028		52,839
Sales and disposals				(1,001)		(1,177)		(9,316)		(11,494)
Reclassifications		7,273		5,210		1,175		(13,658)		—
Translation differences		195		1		45		(3)		238
On December 31, 2021	€	26,131	€	46,270	€	7,829	€	60,324	€	140,555
Depreciations and impairment
On January 1 , 2019	€	2,686	€	23,403	€	1,819	€	275	€	28,184
Depreciation		394		4,018		399		7		4,818
Sales and disposals				(1,521)		(99)				(1,620)
Reclassifications to right of use								(251)		(251)
Translation differences				(15)						(15)
On December 31, 2019		3,080		25,885		2,119		31		31,117
Depreciation		654		3,587		1,418		7		5,666
Sales and disposals		(51)		(1,058)		(77)				(1,186)
Reclassifications		46		(1,675)		1,629				—
Reclassifications to assets held for sale				(4,327)		(448)		(39)		(4,814)
Translation differences		(1)		(61)		(13)				(75)
On December 31, 2020		3,728		22,350		4,628		—		30,708
Depreciation		1,749		3,398		1,113				6,260
Impairment								9,316		9,316
Sales and disposals				(1,000)		(1,178)		(9,316)		(11,494)
Translation differences		28		1		18				47
On December 31, 2021	€	5,505	€	24,749	€	4,582	€	—	€	34,837
Carrying amount
On December 31, 2019	€	2,204	€	18,770	€	1,909	€	17,825	€	40,707
On December 31, 2020	€	13,011	€	15,257	€	2,724	€	37,273	€	68,264
On December 31, 2021	€	20,626	€	21,521	€	3,247	€	60,324	€	105,718

The other tangible assets primarily consist of assets under construction, mainly related to our new building in Leiden (the Netherlands), which are not yet available for use and therefore not yet depreciated as per December 31, 2021

In 2021 we recorded an exceptional impairment of €9.3 million on the other tangible fixed assets following our decision to reassess the construction project of our new future headquarter location in Mechelen (Belgium).

RIGHT-OF-USE	Land & building ​		Installation & machinery		Furniture, fixtures & vehicles		Total
	(Euro, in thousands)
Acquisition value
On January 1, 2019	€	24,056	€	219	€	2,130	€	26,406
Additions		3,270		84		1,176		4,530
Reclassifications to right of use				251				251
Translation differences		38						38
On December 31, 2019		27,364		554		3,307		31,225
Additions		18,341		186		2,932		21,459
Sales and disposals				(6)		(161)		(167)
Reclassifications to assets held for sale		(5,940)				(263)		(6,202)
Translation differences		(88)				(3)		(90)
On December 31, 2020		39,678		734		5,812		46,225
Additions		1,722		110		5,092		6,924
Sales and disposals		(4,160)		(251)		(722)		(5,133)
Translation differences		221				2		223
On December 31, 2021	€	37,461	€	593	€	10,184	€	48,239
Depreciations and impairment
On January 1, 2019	€	—	€	—	€	—	€	—
Depreciation		4,666		91		867		5,624
Reclassifications to right of use				251				251
Translation differences		4						4
On December 31, 2019		4,670		342		867		5,879
Depreciation		5,350		128		1,405		6,883
Sales and disposals				(6)		(161)		(167)
Reclassifications to assets held for sale		(1,334)				(115)		(1,448)
Translation differences		(36)				(1)		(36)
On December 31, 2020		8,651		464		1,995		11,111
Depreciation		5,466		161		2,296		7,923
Sales and disposals		(1,696)		(251)		(722)		(2,669)
Translation differences		79						79
On December 31, 2021	€	12,500	€	374	€	3,569	€	16,444
Carrying amount
On December 31, 2019	€	22,694	€	212	€	2,440	€	25,345
On December 31, 2020	€	31,027	€	270	€	3,817	€	35,113
On December 31, 2021	€	24,961	€	219	€	6,615	€	31,794

	December 31,
		2021		2020		2019
	(Euro, in thousands)
Carrying amount
Property, plant and equipment fully owned	€	105,718	€	68,264	€	40,707
Right-of-use		31,794		35,113		25,345
Total property, plant and equipment	€	137,512	€	103,378	€	66,052

There are no pledged items of property, plant and equipment. There are also no restrictions in use on any items of property, plant and equipment.

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Other non-current assets

12 Months Ended

Dec. 31, 2021

Other non-current assets

Other non-current assets

15. Other non-current assets

Other non-current assets consisted of non-current restricted cash, financial assets held at fair value through profit or loss and other non-current assets.

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current restricted cash	€	1,425	€	1,482	€	1,418
Financial assets held at fair value through profit or loss		—		8,951		11,275
Other non-current assets		1,048		910		1,399
Total other non-current assets	€	2,473	€	11,343	€	14,091

Restricted cash on December 31, 2021 was composed of bank guarantees on real estate lease obligations in Belgium and in the Netherlands for €1.0 million and €0.4 million respectively.

Restricted cash on December 31, 2020 was composed of bank guarantees on real estate lease obligations in Belgium and in the Netherlands for €1.0 million and €0.5 million respectively.

Financial assets held at fair value through profit or loss on December 31, 2020 consisted of equity instruments of both listed and non-listed companies. During 2021 all equity instruments of the listed companies were sold. We have no restrictions on the sale of these equity instruments and the assets are not pledged under any of our liabilities. These instruments are designated as financial assets held at fair value through profit or loss. The fair value of the equity instrument of the listed company was determined by reference to the closing price of such securities on Euronext at each reporting date (classified as level 1 in the fair value hierarchy). The fair value of the equity instrument in the non-listed company which was originally determined mainly by reference to the initial transaction price (classified as level 3 in the fair value hierarchy) has been reduced to nil at December 31, 2021.

Fair value changes on financial assets with fair value through profit or loss are recognized directly in profit or loss, in other financial income/other financial expenses.

The table below illustrates these financial assets held at fair value through profit or loss as at December 31, 2021, 2020 and 2019.

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Costs at January 1,	€	3,910	€	4,736	€	4,818
Acquisitions of the year		12		1,994		—
Disposals of the year		(1,928)		(2,820)		(82)
Costs at December 31,		1,994		3,910		4,736
Fair value adjustment at January 1,		5,042		6,539		1,182
Cancellation of fair value adjustment following disposal		(2,116)		(3,894)		2
Fair value adjustment of the year		(4,920)		2,397		5,355
Fair value adjustment at December 31,		(1,994)		5,042		6,539
Net book value at December 31,	€	—	€	8,951	€	11,275

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Research and Development incentives receivables

12 Months Ended

Dec. 31, 2021

Research and Development incentives receivables

Research and Development incentives receivables

16. Research and Development incentives receivables

The table below illustrates the R&D incentives receivables related captions in the balance sheet at December 31, 2021, 2020 and 2019:

		December 31,
	2021		2020		2019
		(Euro, in thousands)
Non-current R&D incentives receivables	€	127,186	€	111,624	€	93,407
Current R&D incentives receivables		16,827		24,104		21,949
Total R&D incentives receivables	€	144,013	€	135,728	€	115,356

The R&D incentives receivables are future expected refunds or tax deductions resulting from R&D incentives on research and development expenses in France and Belgium. Non-current R&D incentives receivables are reported at their net present value and are therefore discounted over the period until maturity date.

The table below provides detailed information on the maturity of the non-current R&D incentives receivables reported in our balance sheet at December 31, 2021.

Non-current R&D incentives receivables

	December 31, 2021 Maturity date
	2023		2024		2025		2026		2027-2031		Total
	(Euro, in thousands)
French non-current R&D incentives receivables - discounted value	€	11,911		11,713		11,489		—		—	€	35,113
Belgian non-current R&D incentives receivables - discounted value		9,621		12,258		14,895		16,705		38,594		92,073
Total non-current R&D incentives receivables - discounted value	€	21,532	€	23,971		26,384		16,705		38,594	€	127,186

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Inventories

12 Months Ended

Dec. 31, 2021

Inventories

Inventories

17. Inventories

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Raw materials	€	14,351
Semi-finished products		1,376
Finished products purchased for resale		4,842	€	36
Total inventories	€	20,569	€	36	€	—

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Trade and other receivables and other current assets

12 Months Ended

Dec. 31, 2021

Trade and other receivables and other current assets

Trade and other receivables and other current assets

18. Trade and other receivables and other current assets

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current trade receivables		—	€	50,000		—
Trade receivables	€	91,786		134,632	€	39,603
Prepayments		202		219		292
Other receivables		19,349		13,568		14,114
Trade and other receivables		111,337		148,418		54,009
Consumables inventory		—		319		255
Accrued income		639		1,096		4,443
Deferred charges		9,306		10,502		4,439
Other current assets		9,945		11,917		9,138
Total trade and other receivables & other current assets	€	121,282	€	210,335	€	63,147

The carrying amount of trade and other receivables approximates their fair value. Other current assets mainly included accrued income from subsidy projects and deferred charges.

On December 31, 2021, we did not have any provision for expected credit losses.

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Current financial investments

12 Months Ended

Dec. 31, 2021

Current financial investments

Current financial investments

19. Current financial investments

On December 31, 2021, our current financial investments amounted to €2,469.8 million compared to €3,026.3 million on December 31, 2020 and €3,919.2 million at December 31, 2019. On December 31, 2019 these current financial investments included a short-term bond fund and money market funds. On December 31, 2021 these current financial investments included treasury bills amounting to €877.3 million (€1,454.4 million on December 31, 2020), money market funds amounting to €1,317.5 million (€1,571.9 million on December 31, 2020) and non-cancellable term deposits with a maturity exceeding three months from the acquisition date of €275.0 million (nil on December 31, 2020). Our portfolio of treasury bills contains only AAA rated paper, issued by Germany. Our money market funds portfolio consists of AAA short-term money market funds with a diversified and highly rated underlying portfolio managed by established fund management companies with a proven track record leading to an insignificant risk of changes in value. The funds have an important daily liquidity and can be easily converted to cash.

On December 31, 2021, our current financial investments included $134.6 million held in USD, which could generate a foreign currency exchange gain or loss in our financial results in accordance with the fluctuation of the EUR/USD exchange rate as our functional currency is EUR. This effect is embedded in the fair value result of current financial investments recognized in our consolidated income statement. We refer to note 10 for more details about the exchange gains/losses recognized in our consolidated statement of operations.

We refer to note 33 for more information on these current financial investments.

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Cash and cash equivalents

12 Months Ended

Dec. 31, 2021

Cash and cash equivalents [abstract]

Cash and cash equivalents

20. Cash and cash equivalents

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Cash at banks	€	1,225,860	€	1,239,993	€	907,939
Term deposits		1,007,508		895,194		953,677
Cash and cash equivalents from continuing operations		2,233,368		2,135,187		1,861,616
Cash and cash equivalents included in assets classified as held for sale		—		7,884		—
Total cash and cash equivalents	€	2,233,368	€	2,143,071	€	1,861,616

Cash and cash equivalents may comprise cash at banks, bank deposits and money market funds that are readily convertible to cash and are subject to an insignificant risk of changes in value. Cash and cash equivalents at December 31, 2021 comprised €1,007.5 million of term deposits which all had an original maturity longer than three months, but are readily convertible to cash without a significant penalty. All cash and cash equivalents are available upon maximum three month notice period and without significant penalty. Cash at banks were mainly composed of notice accounts and current accounts. Our credit risk is mitigated by selecting a panel of highly rated financial institutions for our deposits.

On December 31, 2021 our cash and cash equivalents included $807.9 million held in U.S.dollars, which could generate a foreign currency exchange gain or loss in our financial results in accordance with the fluctuation of the EUR/U.S.dollar exchange rate as our functional currency is EUR. We refer to note 10 for more details about the exchange gains/losses recognized in our consolidated statement of operations.

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Share capital

12 Months Ended

Dec. 31, 2021

Share capital

Share capital

21. Share capital

	2021		2020		2019
	(Euro, in thousands)
On January 1	€	291,312	€	287,282	€	236,540
Share capital increase		763		4,031		55,189
Costs of capital increase		—		—		(4,447)
Share capital on December 31,	€	292,075	€	291,312	€	287,282
Aggregate share capital	€	354,582	€	353,819	€	349,789
Costs of capital increase (accumulated)		(62,507)		(62,507)		(62,507)
Share capital on December 31,	€	292,075	€	291,312	€	287,282

Costs of capital increases are netted against the proceeds of capital increases, in accordance with IAS 32—Financial instruments: disclosure and presentation.

HISTORY OF SHARE CAPITAL

The history of the share capital of Galapagos NV between January 1, 2019 and December 31, 2021 is as follows:

Date	Share capital increase new shares (in thousands €)		Share capital increase due to exercise subscription rights (in thousands €)		Number of shares issued (in thousands of shares)	Aggregate number of shares after transaction (in thousands of shares)	Aggregate share capital after transaction (in thousands €)
January 1, 2019						54,466	€	294,600
March 20, 2019				808	149
June 20, 2019				1,127	208
August 23, 2019		36,945			6,829
September 19, 2019				1,632	302
November 6, 2019				14,162	2,618
November 25, 2019				515	95
December 31, 2019						64,667		349,789
March 17, 2020				824	152
May 28, 2020				2,356	436
September 19, 2020				467	86
December 4, 2020				384	71
December 31, 2020						65,412		353,819
March 19, 2021				540	100
June 7, 2021				59	11
September 20, 2021				41	8
December 3, 2021				123	23
December 31, 2021						65,553	€	354,582

On December 31, 2021, Galapagos NV’s share capital amounted to €354,582 thousand, represented by 65,552,721 shares. All shares were issued, fully paid up and of the same class.

All of the share issuances listed above were for cash consideration.

The below table summarizes the capital increases for the years 2019, 2020 and 2021.

(Euro, in thousands, except share data)	Number of shares		Share capital		Share premium			Share capital and share premium	Average exercise price subscription right	Closing share price on date of capital increase
									( in Euro/ subscription right)	( in Euro/ share)
On January 1, 2019		54,465,421	€	236,540	€	1,277,780	€	1,514,320
March 20, 2019 : exercise of subscription rights		149,370		808		2,673		3,481	23.30	90.32
June 20, 2019 : exercise of subscription rights		208,310		1,127		3,198		4,325	20.76	113.55
August 23, 2019 : share subscription by Gilead
Ordinary shares (fully paid)		6,828,985		36,945		923,142		960,087		148.90
Derecognition of financial liability from share subscription agreement						56,749		56,749
Underwriter discounts and offering expenses (paid)				(4,447)				(4,447)
Total share subscription by Gilead		6,828,985		32,498		979,891		1,012,389
September 19, 2019 : exercise of subscription rights		301,745		1,632		5,043		6,675	22.12	145.25
November 6, 2019 : exercise of warrant A by Gilead
Exercise of warrant A		2,617,791		14,162		353,873		368,035
Derecognition of financial liability related to warrant A						78,953		78,953
Total exercise of warrant A by Gilead		2,617,791		14,162		432,826		446,988	140.59	170.75
November 25, 2019 : exercise of subscription rights		95,180		515		2,172		2,687	28.23	172.95
On December 31, 2019		64,666,802		287,282		2,703,583		2,990,865
March 17, 2020 : exercise of subscription rights		152,220		824		4,531		5,355	35.18	141.40
May 28, 2020 : exercise of subscription rights		435,540		2,356		15,558		17,914	41.13	186.60
September 18, 2020 : exercise of subscription rights		86,280		467		1,936		2,403	27.85	117.70
December 4, 2020 : exercise of subscription rights		70,925		384		2,232		2,616	36.88	100.30
On December 31, 2020		65,411,767		291,312		2,727,840		3,019,153
March 19, 2021 : exercise of subscription rights		99,814		540		1,718		2,258	22.62	68.48
June 7, 2021 : exercise of subscription rights		10,940		59		266		325	29.73	61.78
September 20, 2021 : exercise of subscription rights		7,600		41		111		152	19.97	46.93
December 3, 2021 : exercise of subscription rights		22,600		123		456		579	25.61	41.72
On December 31, 2021		65,552,721	€	292,075	€	2,730,391	€	3,022,467

Other information

	Ordinary shares		Total
Par value of shares (€)		5.41		5.41

The supervisory board is authorized for a period of five years starting from the date of publication in the Annexes to the Belgian State Gazette of the shareholders’ resolution that granted the renewed authorization, to increase the share capital of Galapagos NV within the framework of the authorized capital through contributions in kind or in cash, with limitation or cancellation of the shareholders’ preferential subscription rights. Said authorization can be renewed. The authorized capital of Galapagos NV consists of two parts. A general authorization for capital increases up to 20% of the share capital at the time of convening the shareholders’ meeting of October 22, 2019 (i.e. €67,022,402.04) was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State

Gazette, i.e. November 13, 2019. A specific authorization for capital increases of more than 20% and up to 33% of the share capital at the time of the convening the shareholders' meeting of April 25, 2017 (i.e. €82,561,764.93), was renewed and is valid for a period of five years from the date of publication of this renewal in the Annexes to the Belgian State Gazette, i.e. May 31, 2017. This specific part of the authorized capital can, however, only be used in a number of specific circumstances and upon a resolution of the supervisory board that all independent supervisory board members (within the meaning of article 526ter of the Belgian Companies Code, resp. article 7:87 of the New Belgian Companies Code) approve. The supervisory board is currently not authorized to increase the share capital after notification by the FSMA (Financial Services and Markets Authority) of a public takeover bid on Galapagos NV’s shares.

As of December 31, 2021, an amount of €41,775,187.16 still remained available under the general part of the authorized capital and an amount of €13,717,929.80 remained available under the specific part of the authorized capital.

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Deferred tax

12 Months Ended

Dec. 31, 2021

Deferred tax

Deferred tax

22. Deferred tax

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Recognized deferred tax assets and liabilities
Assets	€	4,032	€	4,475	€	4,205
Liabilities	€	—	€	—	€	—
Deferred tax assets unrecognized	€	408,892	€	365,639	€	289,833
Deferred taxes in the consolidated statement of operations	€	(404)	€	(157)	€	1,537
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)		1,411		581		1,537
Deferred tax expenses relating to temporary differences		(629)		(44)		—
Deferred tax expenses relating to use of previously recognized deferred tax assets		(1,185)		(695)		—

The total amount of tax attributes and deductible temporary differences at December 31, 2021 amounted to €1,653.7 million (2020: €1,485.8 million, 2019: €1,179.0 million). This is composed of i) consolidated tax losses carried forward and deductible temporary differences at December 31, 2021 amounting to €1,343.2 million (2020: €1,229.3 million; 2019: €953.3 million), and (ii) innovation income deduction and investment deduction carried forward at December 31, 2021 amounting to €310.5 million (2020: €256.5 million; 2019: €225.7 million).

The available tax losses carried forward that can be offset against future taxable profits amounted to €635.6 million on December 31, 2021. These tax losses can be compensated with future profits for an indefinite period except for an amount of €2.8 million in the United States with expiry date between 2028 and 2034. On December 31, 2021, the available tax losses carried forward in Galapagos NV (Belgium) amounted to €556.9 million. In addition to the latter, Galapagos NV (Belgium) also benefits from the Belgian innovation income deduction regime which led to report, on December 31, 2021, a carried forward tax deduction of €301.3 million (2020: €247.2 million; 2019: €224.7 million) that can also be offset against future taxable results. In addition, Galapagos NV (Belgium) also has available investment deduction carried forward of €1 million (2020 and 2019: €1 million) and a dividend received deduction carryforward of €8.2 million (2020: €8.4 million, 2019: nil) that can be offset against future taxable profits. There is no limit in time for the innovation income deduction, the dividend received deduction carryforward and investment deduction carried forward.

With the exception of 2019, we have a history of losses. We forecast to continue incurring taxable losses in the foreseeable future as we continue to invest in clinical and preclinical development programs and discovery platforms. Consequently, no deferred tax asset was recognized as at December 31, 2021, except for subsidiaries operating on a cost plus basis for which deferred tax assets were recognized for €4.0 million (2020: €4.5 million and 2019: €4.2 million).

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Lease liabilities

12 Months Ended

Dec. 31, 2021

Lease liabilities.

Lease liabilities

23. Lease liabilities

	December 31,						December 31,
	2021		2020		2019		2021		2020		2019
		(Euro, in thousands)						(Euro, in thousands)
		Lease payments						Present value of lease payments
Lease liabilities
Within one year	€	7,557	€	6,772	€	6,189	€	7,204	€	6,401	€	5,826
In the second to fifth years inclusive		18,873		20,399		16,320		18,381		19,833		15,783
After five years		1,291		3,214		3,844		1,274		3,201		3,775
	€	27,720	€	30,385	€	26,353	€	26,859	€	29,436	€	25,384
Less future finance charges		861		949		969
Present value of lease liabilities	€	26,859	€	29,436	€	25,384
Less amount due for settlement within 12 months								7,204		6,401		5,826
Amount due for settlement after 12 months							€	19,655	€	23,035	€	19,558

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Trade and other liabilities

12 Months Ended

Dec. 31, 2021

Trade and other liabilities

Trade and other liabilities

24. Trade and other liabilities

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Trade and other liabilities	€	134,304	€	171,316	€	142,510
Other non-current liabilities		7,135		8,096		6,989
Accrued charges		3,114		1,070		923
Total trade and other liabilities	€	144,553	€	180,482	€	150,422

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Deferred income

12 Months Ended

Dec. 31, 2021

Deferred income

Deferred income

25. Deferred income

The movement in the non-current and current deferred income is detailed in the table below.

		Total		Gilead collaboration agreement for filgotinib		Gilead collaboration agreement for ziritaxestat		Gilead collaboration agreement for drug discovery platform (2)		AbbVie collaboration agreement for CF		Deferred income related to contracts in our fee-for-service segment		Other deferred income (grants)
		(Euro, in thousands)
On December 31, 2018	€	149,801	€	145,798	€	—	€	—	€	3,224	€	471	€	308
Upfront received and impact of initial valuation of share subscription		3,655,416		641,663		666,967		2,346,787
Milestones received		49,727		27,317						22,410
Significant financing component (3)		6,900		6,900
Revenue recognition of upfront		(1,009,663)		(260,207)		(666,967)		(80,918)		(1,570)
Revenue recognition of milestones		(51,156)		(27,092)						(24,064)
Catch-up effect on closing date (1)		245,883		245,883
Other movements		(46,262)						(45,856)				(109)		(297)
On December 31, 2019		3,000,646		780,261		—		2,220,013		—		362		10
Upfront received		160,000		160,000
Milestones received		90,192		90,192
Significant financing component (3)		16,278		16,278
Revenue recognition of upfront		(411,417)		(181,816)				(229,601)
Revenue recognition of milestones		(46,261)		(46,261)
Other movements		(305)										(362)		57
On December 31, 2020		2,809,133		818,654		—		1,990,412		—		—		67
Upfront received		12,643		12,643
Significant financing component (3)		9,289		9,289
Revenue recognition of upfront		(433,884)		(203,301)				(230,582)
Revenue recognition of milestones		(32,408)		(32,408)
Other movements		(67)												(67)
On December 31, 2021	€	2,364,701	€	604,875	€	—	€	1,759,828	€	—	€	—	€	—

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019 included a negative catch-up effect resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

(2) The upfront received and the outstanding balance on December 31, 2021 and December 31, 2020 comprise the issuance liabilities for the warrants and the upfront payment allocated to the drug discovery platform. Other movements in 2019 include the derecognition of warrant issuance liabilities through the share premium account.

(3) With regard to the additional consideration received for the extended cost sharing for filgotinib, we assume the existence of a sigificant financing component reflecting the time value of money on the estimated recognition period

The outstanding deferred income balance at December 31, 2021 included €604.9 million related to the collaboration agreement with Gilead for filgotinib (€414.8 million classified as long term deferred income), and €1,759.8 million, including €2.4 million warrant issuance liability related to subsequent warrant B, related to the collaboration agreement with Gilead for the drug discovery platform (€1,530.0 million classified as long term deferred income).

The outstanding deferred income balance at December 31, 2020 included €818.7 million deferred income related to the collaboration agreement with Gilead for filgotinib (€604.9 million classified as long term deferred income), €1,990.4 million, including €7.9 million warrant issuance liability related to subsequent warrant B, related to the collaboration agreement with Gilead for the drug discovery platform (€1,761.1 million classified as long term deferred income), and €0.1 million deferred grant income. We refer to note 6 for a detail of the allocation of the transaction price received from Gilead.

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Discontinued operations

12 Months Ended

Dec. 31, 2021

Discontinued operations

Discontinued operations

26. Discontinued operations

On November 23, 2020 we signed a share purchase agreement with Selvita S.A. in relation to the disposal of Fidelta d.o.o. (our previous fee-for-service segment). We have classified the assets and the associated liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020.

The transaction was completed on January 4, 2021 for a total consideration of €37.1 million. Fidelta will continue performing drug discovery services for us for the next four years for which we have purchase commitments for an aggregate amount of €19.3 million on December 31, 2021.

DISPOSAL OF FIDELTA

Consideration received

		(Euro, in thousands)
Cash received	€	37,080
Total cash received	€	37,080

Analysis of assets and liabilities over which control was lost

	January 4, 2021
		(Euro, in thousands)
Intangible assets	€	21
Property, plant and equipment		10,050
Other non-current assets		160
Trade and other receivables		4,428
Cash and cash equivalents		7,884
Other current assets		863
Total assets		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		4,479
Current lease liabilities		727
Income tax payable		356
Total liabilities		9,747
Net assets disposed of	€	13,658

Gain on disposal of Fidelta

		(Euro, in thousands)
Cash received	€	37,080
Net assets disposed of		(13,658)
Effect of cumulative translation adjustment reclassified from equity on loss of control		(731)
Costs associated to the sale		(500)
Gain on disposal	€	22,191

Net cash proceeds from the disposal of Fidelta

		(Euro, in thousands)
Cash received	€	37,080
Less: cash and cash equivalents balances disposed of		(7,884)
Total consideration received, net of cash disposed of		29,196
Costs associated to the sale		(500)
Cash in from disposal of Fidelta, net of cash disposed of	€	28,696

RESULT FROM DISCONTINUED OPERATIONS

	Year ended December 31,
	2021		2020			2019
		(Euro, in thousands, except share and per share data)
Fee-for-service revenues	€	—	€	16,140	€	10,084
Total revenues		—		16,140		10,084
Gain on disposal of subsidiaries		22,191		—		—
Research and development expenses		—		(7,685)		(7,229)
General and administrative expenses		—		(2,000)		(1,319)
Other income		—		—		8
Operating income		22,191		6,455		1,544
Other financial income		—		179		93
Other financial expenses		—		(176)		(102)
Income before tax		22,191		6,458		1,535
Income taxes		—		(893)		(379)
Net income	€	22,191	€	5,565	€	1,156
Basic income per share from discontinued operations	€	0.34	€	0.09	€	0.02
Diluted income per share from discontinued operations	€	0.34	€	0.08	€	0.02
Weighted average number of shares (in thousands of shares)		65,500		65,075		57,614
Weighted average number of shares - Diluted (in thousands of shares)		65,831		67,572		60,112

CASH FLOW FROM DISCONTINUED OPERATIONS

		2021	2020		2019
		(Euro, in thousands)
Net cash flows generated from operating activities	€	—	€	7,173	€	2,911
Net cash flows generated from/used in (-) investing activities		28,696		(2,284)		(1,350)
Net cash flows used in financing activities		—		(664)		(709)
Net cash flow from discontinued operations	€	28,696	€	4,225	€	852

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Operating Cash Flow

12 Months Ended

Dec. 31, 2021

Consolidated Statement of Cash Flows

Operating Cash Flow

27. Operating Cash Flow

The following table details the adjustments related to the operating cash flow:

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Adjustment for non-cash transactions
Depreciation, amortization and impairment	€	34,636	€	18,682	€	12,448
Share-based compensation expenses		70,726		79,959		38,297
Decrease in retirement benefit obligations and provisions		(2,347)		(260)		(156)
Unrealized exchange losses/gains (-) and non-cash other financial result		(57,073)		105,055		11,169
Discounting effect of deferred income		9,289		16,278		6,900
Fair value re-measurement of share subscription agreement and warrants		(2,960)		(3,034)		181,644
Net change in (fair) value of current financial investments		(119)		15,900		3,081
Fair value adjustment financial assets held at fair value through profit or loss		4,919		(2,396)		(5,355)
Other non-cash expenses		648		539
Total adjustment for non-cash transactions	€	57,718	€	230,723	€	248,027
Adjustment for items to disclose separately under operating cash flow
Interest expense	€	11,656	€	9,424	€	1,302
Interest income		(2,853)		(7,476)		(9,247)
Tax expense		2,423		2,119		214
Total adjustment for items to disclose separately under operating cash flow	€	11,227	€	4,067	€	(7,731)
Adjustment for items to disclose under investing and financing cash flows
Gain on disposal of subsidiaries	€	(22,191)
Gain (-)/loss on sale of fixed assets			€	82	€	(2)
Realized exchange gain on sale of current financial investments		(6,645)
Interest income on current financial investments		(12)		(2,554)		(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	€	(28,847)	€	(2,472)	€	(5,061)
Change in working capital other than deferred income
Increase (-)/decrease in inventories	€	(21,168)	€	(100)	€	20
Increase (-)/ decrease in receivables		79,859		(177,155)		(67,263)
Increase/decrease (-) in liabilities		(35,353)		31,163		79,940
Total change in working capital other than deferred income	€	23,337	€	(146,092)	€	12,698

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Off-balance sheet arrangements

12 Months Ended

Dec. 31, 2021

Off-balance sheet arrangements

Off-balance sheet arrangements

28. Off-balance sheet arrangements

CONTRACTUAL OBLIGATIONS AND COMMITMENTS

On December 31, 2021, we had outstanding obligations for future purchase commitments, which become due as follows:

	Total		Less than 1 year			1 - 3 years		3 - 5 years		More than 5 years
					(Euro, in thousands)
Purchase commitments	€	369,937	€	212,065		€	105,947	€	46,426	€	5,499

In addition to the tables above, we have a contractual cost sharing obligation related to our collaboration agreement with Gilead for filgotinib. The contractual cost sharing commitment amounted to €369.9 million at December 31, 2021 (€493.4 million at December 31, 2020 and €614.1 million at December 31, 2019), for which we have purchase commitments of €169.6 million at December 31, 2021 reflected in the above table (€18.1 million at December 31, 2020, €27.5 million at December 31, 2019).

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Contingent assets and liabilities

12 Months Ended

Dec. 31, 2021

Contingent assets and liabilities

Contingent assets and liabilities

29. Contingent assets and liabilities

On January 4, 2021, we closed the sale of our Croatian subsidiary Fidelta. Selvita acquired 100% of the outstanding shares in Fidelta for a total consideration of €37.1 million. In accordance with common practice, we gave representations and warranties which are capped and limited in time.

As explained in the summary of the significant transaction in note 2 to our consolidated financial statements, Gilead and we entered into a license and collaboration agreement to co-develop filgotinib in different indications. The collaboration was amended several times and in connection with these amendments Gilead has agreed to irrevocably pay us €160 million, subject to certain adjustments for higher than budgeted development costs. Gilead paid €110 million in 2021 and will pay an additional €50 million in 2022. In addition, we will no longer be eligible to receive any future milestone payments relating to filgotinib in Europe. However, we will remain eligible to receive tiered royalty percentages ranging from 20% to 30% on Gilead’s global net sales of filgotinib outside of Europe and future development and regulatory milestone-based payments of up to $295 million and sales-based milestone payments of up to $600 million. We will pay royalties on net sales of filgotinib in Europe to Gilead starting January 1, 2024. Under the terms of the 2021 amendment and upon completion of the transfer of the DIVERSITY clinical study, Gilead will make a one-time payment of $15 million to us in consideration for assuming responsibility for this clinical study. From April 1, 2022, we will also be solely responsible for all development costs for the DIVERSITY clinical study. In addition, if the European Medicines Agency grants regulatory approval of filgotinib for the treatment of CD based on data from the DIVERSITY trial, then royalties payable by us to Gilead will be reduced by 30% across all filgotinib indications and will become 5.6% to 10.5% of net sales in Europe. Gilead remains responsible for commercial activities outside of Europe.

Furthermore Gilead received exclusive option rights to acquire a license on compounds. Exercising such an option would trigger an opt-in payment, a 50-50 cost share mechanism for the future development activities, potential future development and sales based milestones and royalties.

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Share based payments

12 Months Ended

Dec. 31, 2021

Share based payments

Share based payments

30. Share based payments

SUBSCRIPTION RIGHT PLANS

Presented below is a summary of subscription right activities for the reported periods. Various subscription right plans were approved for the benefit of our employees, and for members of the supervisory board and independent consultants of Galapagos NV.

The subscription rights offered to members of the supervisory board vest over a period of 36 months at a rate of 1/36^th per month. Effective January 1, 2020, we no longer grant subscription rights to supervisory board members.

Subscription rights approved before 2021 cannot be exercised before the end of the third calendar year following the year of the grant. In the event of a change of control over Galapagos NV, all outstanding subscription rights vest immediately and will be immediately exercisable.

On April 30, 2021 the supervisory board approved “Subscription Right Plan 2021 BE”, “Subscription Right Plan 2021 RMV” and “Subscription Right Plan 2021 ROW”, within the framework of the authorized capital. Subscription rights granted under Subscription Right Plan 2021 BE will in principle not vest prior to January 1, 2025 and subscription rights granted under Subscription Right Plan 2021 RMV and Subscription Right Plan 2021 ROW vest in instalments: with 25% of each grant being exercisable as of January 1, 2023, 25% as of January 1, 2024 and 50% (the remainder) as of January 1, 2025.

The table below sets forth a summary of subscription rights outstanding and exercisable at December 31, 2021, per subscription right plan:

				Outstanding					Outstanding	Exercisable
				per	Granted	Exercised	Forfeited	Expired	per	per
	Allocation	Expiry	Exercise	January 1,	during	during	during	during	December 31,	December 31,
Subscription right plan	date	date	price (€)	2021	year	year	year	year	2021	2021
2008	06/26/2008	06/25/2021	5.6	1,365		(1,365)			—	—
2013	05/16/2013	05/15/2021	19.38	55,664		(55,664)			—	—
2014	07/25/2014	07/24/2022	14.54	169,340		(41,800)			127,540	127,540
2015	04/30/2015	04/29/2023	28.75	219,473		(20,250)			199,223	199,223
2015 (B)	12/22/2015	12/21/2023	49.00	261,500		(5,000)			256,500	256,500
2015 RMV	12/22/2015	12/21/2023	49.00	40,000		(5,000)			35,000	35,000
2016	06/01/2016	05/31/2024	46.10	342,625		(11,875)			330,750	330,750
2016 RMV	06/01/2016	05/31/2024	46.10	69,000			—		69,000	69,000
2016 (B)	01/20/2017	01/19/2025	62.50	10,000			—		10,000	10,000
2017	05/17/2017	05/16/2025	80.57	595,500			—		595,500	595,500
2017 RMV	05/17/2017	05/16/2025	80.57	127,500			—		127,500	127,500
2018	04/19/2018	04/18/2026	79.88	1,083,245			(77,250)		1,005,995
2018 RMV	04/19/2018	04/18/2026	79.88	137,500			—		137,500
2019	04/10/2019	04/09/2027	95.11	1,477,840			(177,000)		1,300,840
2019 RMV	04/10/2019	04/09/2027	95.11	193,000			(2,500)		190,500
2020	04/17/2020	04/16/2028	168.42	1,906,034			(288,106)		1,617,928
2020RMV	04/17/2020	04/16/2028	168.42	239,525			(12,050)		227,475
2021BE	04/30/2021	04/29/2029	64.76		1,117,603		(33,567)		1,084,036
2021RMV	04/30/2021	04/29/2029	64.76		291,725		(9,175)		282,550
2021ROW	04/30/2021	04/29/2029	64.76		1,084,105		(102,105)		982,000
Total				6,929,111	2,493,433	(140,954)	(701,753)	—	8,579,837	1,751,013

		Weighted
		average
		exercise
	Subscription rights	price (Euro)
Outstanding on January 1, 2019	4,626,782	€	53.3
Exercisable on December 31, 2018	882,734		14.0
Granted during the period	1,699,690		95.1
Forfeited during the year	(30,750)		88.9
Exercised during the period	(754,605)		22.8
Expired during the year	—		—
Outstanding on December 31, 2019	5,541,117	€	70.1
Exercisable on December 31, 2019	1,139,682		30.2
Granted during the period	2,173,335		168.4
Forfeited during the year	(40,376)		144.8
Exercised during the period	(744,965)		38.0
Expired during the year	—		—
Outstanding on December 31, 2020	6,929,111	€	104.0
Exercisable on December 31, 2020	1,168,967		37.8
Granted during the period	2,493,433		64.8
Forfeited during the year	(701,753)		118.5
Exercised during the period	(140,954)		23.5
Expired during the year	—		—
Outstanding on December 31, 2021	8,579,837	€	92.7
Exercisable on December 31, 2021	1,751,013		56.6

The table below sets forth the inputs into the valuation of the subscription rights.

	2021BE		2021 RMV/ROW		2020		2020 RMV			2019		2019 RMV
	April 30		April 30		April 17		April 17			April 19		April 19
Exercise Price (€)	€	64.76	€	64.76	€	168.42	€	168.42	€	95.11	€	95.11
Weighted average share price at acceptance date (€)	€	61.10	€	61.10	€	178.95	€	178.95	€	107.05	€	107.45
Weighted average fair value at the acceptance date (€)	€	22.72	€	20.68	€	86.45	€	85.79	€	40.04	€	40.05
Weighted average estimated volatility (%)		40.73		40.61		51.30		51.32		35.86		35.63
Weighted average expected life of the subscription rights (years)		6.43		5.36		6.00		6.00		6.02		6.00
Weighted average risk free rate (%)		(0.21)		(0.29)		(0.44)		(0.44)		(0.27)		(0.28)
Expected dividends		None		None		None		None		None		None

Subscription right Plans

The exercise price of the subscription rights is determined pursuant to the applicable provisions of the Belgian Law of March 26, 1999.

The weighted average estimated volatility is calculated on the basis of the implied volatility of the share price over the weighted average expected life of the subscription rights.

The weighted average expected life of the subscription right is calculated as the estimated duration until exercise, taking into account the specific features of the plans.

Our share based compensation expense in 2021 in relation to subscription right plans amounted to €70,726 thousand (2020: €79,959 thousand; 2019: €38,297 thousand).

The following table provides an overview of the outstanding subscription rights per category of subscription right holders at December 31, 2021, 2020 and 2019.

Category

	December 31,
	2021		2020		2019
	(in number of subscription rights)
Supervisory board members		157,560		157,560		222,600
Management board members (1)		1,965,000		2,101,874		2,171,874
Personnel		6,457,277		4,669,677		3,146,643
Total subscription rights outstanding		8,579,837		6,929,111		5,541,117

(1) Piet Wigerinck was a member of the management board until November 30, 2021. Note that his outstanding subscription rights at December 31, 2020, were reported on the line ‘Management board members’ while at December 31, 2021 his outstanding subscription rights are presented on the line ‘Personnel’.

The outstanding subscription rights at the end of the accounting period have an average exercise price of €92.69 (2020: €103.95; 2019: €70.09) and a weighted average remaining expected life of 1,955 days (2020: 2,050 days; 2019: 2,023 days).

RESTRICTED STOCK UNITS RSUs

Each RSU represents the right to receive one Galapagos share or a payment in cash of an amount equivalent to the volume-weighted average price of the Galapagos share on Euronext Brussels over the 30-calendar day period preceding the relevant vesting date, in accordance with the terms and conditions of the relevant RSU program.

We currently have the following restricted stock unit (RSU) programs:

● Plan 2020.I and Plan 2021.I, under which the grants are intended to be made every year, subject to a decision of the supervisory board. This plan is intended to provide a long-term incentive to certain of our employees and management board members and replaces the deferred portion of the bonus under the former Senior Management Bonus Scheme;

● Plan 2019.II, Plan 2020.II, Plan 2021.II and Plan 2021.IV These plans are aimed at retaining a specific set of our employees and management board members whose retention is deemed so important for the future performance of Galapagos that an additional incentive is desired. The beneficiaries are nominated by the nomination and remuneration committee and the supervisory board approves the list of beneficiaries; 

● Plan 2019.I This plan was granted at the discretion of the supervisory board;

● Plan 2019.III This exceptional RSU grant took place in 2019 under an RSU Transaction Bonus Plan for the successful closing of the Gilead transaction;

● Plan 2021.III This plan is intended to compensate employees who transferred from Gilead to us in the framework of the transfer of European commercialization rights for the long-term incentive plans within Gilead under which unvested RSU awards lapse upon transfer out of the Gilead group. These employees received a one-time Restricted Stock Units grant from us.

The main characteristics of all these plans are as follows:

● the RSUs are offered for no consideration;

● generally four-year vesting period, with 25% vesting each year, except for some plans or some beneficiaries for which the RSUs will all vest at the same time three years after the offer date; vest 50% after two years and 50% after three years or vest over three years with 34% vesting the first year and 33% in each of the remaining two years;

● payout will be in cash or shares, at Galapagos’ discretion, it being understood that in respect of members of the management board, any vesting prior to the third anniversary of the offer date will always give rise to a payment in cash rather than a delivery of shares as an incentive;

● any unvested RSUs are forfeited upon termination of service before the vesting date.

The table below sets forth a summary of RSUs outstanding at December 31, 2021, per RSU plan:

		Outstanding				Outstanding
		per	Granted	Forfeited	Paid in cash	per
	Offer	January 1,	during	during	during	December 31,
RSU plan	date	2021	year	year	year	2021
Plan 2019.I.	10/16/2019	33,000		(5,000)	—	28,000
Plan 2019.II.	10/16/2019	81,807		(12,034)	(27,269)	42,504
Plan 2019.III.	10/16/2019	71,072		(5,077)	(35,535)	30,460
Plan 2020.I.	06/05/2020	54,876		(10,925)	(11,424)	32,527
Plan 2020.II.	07/05/2020	72,841		(12,663)	(18,210)	41,968
Plan 2021.I.	05/05/2021		180,844	(26,228)	—	154,616
Plan 2021.II.	05/06/2021		43,328	(2,708)	—	40,620
Plan 2021.III.	06/03/2021		38,413	(238)	—	38,175
Plan 2021.IV.	09/24/2021		248,933	—	—	248,933
Total		313,596	511,518	(74,873)	(92,438)	657,803

The RSUs are measured based on the volume-weighted average price of the Galapagos share on Euronext Brussels over the 30-calendar day period preceding the reporting period and they are re-measured at each reporting date. We recognize the corresponding expense and liability over the vesting period.

The following table provides an overview of the outstanding RSUs per category of RSU holders on December 31, 2021, 2020 and 2019.

	December 31,
	2021		2020		2019
	(in number of RSUs)
Management board members		384,340		229,276		188,571
Personnel		273,463		84,320		24,576
Total outstanding RSUs		657,803		313,596		213,147

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Related party transactions

12 Months Ended

Dec. 31, 2021

Related party transactions

Related party transactions

31. Related parties

Relationship and transactions with entities with control of, or significant influence over, Galapagos

Gilead

Gilead is exercising significant influence over Galapagos as from the equity subscription on August 23, 2019. As a result of the equity subscription we received a transparency notification from Gilead on August 28, 2019 confirming they held 22.04% of the then issued and outstanding shares of Galapagos.

By exercising warrant A on November 6, 2019 Gilead increased its ownership in Galapagos to 25.10% of the then outstanding shares. Gilead further increased its ownership to 25.84% at December 31, 2019. Gilead’s ownership then diluted to 25.54% at December 31, 2020 and to 25.49% at December 31, 2021, due to four capital increases resulting from the exercise of subscription rights under employee subscription right plans in the course of respectively 2020 and 2021.

The presumption of significant influence is also confirmed by the fact that Gilead has the right, for as long as it holds more than 20% of Galapagos’ share capital, to appoint two Investor Board Designees to Galapagos’ supervisory board, out of a total of eight.

The following balances are outstanding at the end of the reporting period in relation to Gilead:

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current trade receivables			€	50,000
Trade and other receivables	€	88,246		132,825	€	31,645
Trade and other payables	€	11,580	€	27,074	€	39,100

The trade and other receivables on December 31, 2021 contain €50.0 million of receivables relating to the in 2020 modified collaboration for filgotinib, for which we already received €110 million in the course of 2021. They also contain €12.6 million related to the transfer of the sponsorship and operational and financial responsibility of the ongoing DIVERSITY clinical trial from Gilead to us, €23.8 million of profit and cost sharing receivables relating to our collaboration for filgotinib and €1.9 million receivables relating to royalties. The outstanding liabilities mainly relate to the cross charges from Gilead relating for the development costs sharing of filgotinib in the fourth quarter of 2021 (€5.7 million) and €1.6 million related to purchases of finished goods.

During 2019 we already recognized in revenue the entire transaction price allocated to the license on GLPG1690 (€667 million). During 2021 we recognized in revenue €230.6 million (€229.6 million for the year ended December 31, 2020; €80.9 million for the year ended December 31, 2019) relating to the performance obligation for the drug discovery platform and a total of €235.7 million (€228.1 million for the year ended December 31, 2020; €41.4 million for the year ended December 31, 2019) representing the total impact on our revenues coming from the filgotinib performance obligation. The latter consists of upfront payments and milestone payments that were recognized in accordance with the percentage of completion of the underlying performance obligation.

Additionally, we recognized in 2021 royalty income for an amount of €3.8 million in relation to the commercialization of Jyseleca (€16.2 million for the year ended December 31, 2020).

Furthermore, we recognized in 2021 €18.1 million (€34.1 million for the year ended December 31, 2020; €17.7 million for the year ended December 31, 2019) of cost reimbursements from Gilead with respect to the development of GLPG1690 as a decrease of the related expenses (on the line research and development expenditure). An amount of €81.3 million (€101.0 million for the year ended December 31, 2020; €72.0 million for the year ended December 31, 2019) relating to cross charges from Gilead relating to filgotinib was recognized as expense on the line research and development expenditure.

Finally, we recognized in 2021 €59.7 million as a deduction of sales & marketing expenses (a deduction of €4.7 million for the year ended December 31, 2020; additional sales & marketing expenses of €8.2 million for the year ended December 31, 2019) mainly relating to our 50/50 cost share mechanism with Gilead for expenses incurred in preparation for the co-promotion activities for filgotinib. We recognized €7.0 million as a deduction of research and development expenditure (a deduction of €3.1 million for the year ended December 31, 2020) mainly relating to our 50/50 profit/(cost) share mechanism with Gilead for direct sales of Jyseleca in the shared territory.

We purchased raw materials, semi-finished products and finished products of Jyseleca from Gilead for an amount of €24.9 million for the year ended December 31, 2021 (€0.2 million for the year ended December 31, 2020 and nil for the year ended December 31, 2019).

As at December 31, 2021 we have two outstanding performance obligations under IFRS 15 towards Gilead, being the performance obligation related to our drug discovery platform and the performance obligation relating to filgotinib. This results in an outstanding deferred income balance of €1.8 billion for the drug discovery platform (including the warrant issuance liability relating to subsequent warrant B) and €605 million for the performance obligation relating to filgotinib.

A detailed explanation of our transactions with Gilead in 2019, 2020 and 2021 can be found in the section titled Agreements with major Galapagos NV shareholders. There are no other shareholders or other entities who, solely or jointly, control Galapagos or exercise significant influence over Galapagos.

Relationship and transactions with subsidiaries

Please see Note 32 for an overview of the consolidated companies of the group, which are all wholly-owned subsidiaries of Galapagos NV.

Relationship and transactions with key management personnel

Our key management personnel consists of the members of the management board and members of the supervisory board. All amounts mentioned in this section are based on expenses recognized in the financial statements for the relevant financial year.

Remuneration of key management personnel

On December 31, 2021, our management board had five members: Mr. Onno van de Stolpe, Mr. Bart Filius, Dr. Andre Hoekema, Dr. Walid Abi-Saab and Mr. Michele Manto. They provide their services to us on a full-time basis. On December 31, 2021, our supervisory board consisted of eight members: Dr. Raj Parekh, Mr. Howard Rowe, Ms. Katrine Bosley, Dr. Mary Kerr, Mr. Peter Guenter, Mr. Daniel O’Day, Dr. Linda Higgins and Dr. Elisabeth Svanberg.

Effective from January 1, 2020, Galapagos no longer grants any subscription rights to supervisory board members, taking into account the stricter rules of the Belgian Companies Code. Prior to 2020, supervisory board members were granted subscription rights and hence the table below for 2019 contains disclosures for supervisory board members.

Dr. Wigerinck left Galapagos and was a management board member until November 30, 2021 and hence the table below for 2021 contains disclosures on his remuneration until the aforementioned date and his severance package.

The remuneration package of the members of key management personnel comprises:

	Year ended December 31,
	2021		2020		2019
Remuneration of key management personnel:
Euro, in thousands (except for the number of subscription rights and RSUs)
Short-term benefits	€	4,264	€	3,102	€	14,129
Management board members as a group (1)
Gross salary		2,621		2,531		2,121
Employer social security on gross salary		—		—		61
Cash bonus (2)		1,172		433		1,230
Exceptional bonus		—		—		10,500
Employer social security on exceptional bonus		—		—		108
Other short-term benefits		471		138		109
Long-term benefits for management board members as a group (3)		—		—		1,874
Board fees and other short-term benefits for supervisory board members
Raj Parekh		220		220		90
Howard Rowe		120		125		55
Werner Cautreels (4)		—		—		15
Katrine Bosley (5)		65		115		45
Christine Mummery (4)		—		—		13
Mary Kerr		115		115		45
Peter Guenter (6)		115		115		30
Daniel O'Day (7)		—		—		—
Linda Higgins (7)		—		—		—
Elisabeth Svanberg (8)		115		78		—
Post-employment benefits (9)		399		392		323
Total benefits excluding subscription rights and RSUs	€	5,413	€	4,262	€	16,618
Severance package (10)		802		—		—
Number of subscription rights granted in the year
Management board members as a group (1) (12)		275,000		275,000		315,000
Onno van de Stolpe		85,000		85,000		100,000
Bart Filius		50,000		50,000		65,000
Andre Hoekema		30,000		30,000		50,000
Piet Wigerinck (11)		40,000		40,000		50,000
Walid Abi-Saab		40,000		40,000		50,000
Michele Manto (12)		30,000		30,000		40,000
Supervisory board members as a group		—		—		45,000
Raj Parekh		—		—		15,000
Howard Rowe		—		—		7,500
Katrine Bosley		—		—		7,500
Mary Kerr		—		—		7,500
Peter Guenter (6)		—		—		7,500
Daniel O'Day (7)		—		—		—
Linda Higgins (7)		—		—		—
Elisabeth Svanberg (8)		—		—		—
Total number of subscription rights granted in the year (12)		275,000		275,000		360,000
Total cost of subscription rights granted in the year under IFRS 2	€	5,629	€	22,921	€	14,236
Number of RSUs granted in the year (13)
Onno van de Stolpe		63,830		18,317		57,528
Bart Filius		62,730		12,600		39,846
Andre Hoekema		51,433		832		19,922
Piet Wigerinck (11)		835		12,080		33,077
Walid Abi-Saab		44,038		12,080		33,077
Michele Manto (12)		31,694		5,920		5,121
Total number of RSUs granted in the year		254,560		61,829		188,571

(1) Mr. Manto was appointed as Chief Commercial Officer and member of the management board, effective as of January 1, 2020. As a result the management board consisted of six persons in 2020. Dr. Wigerinck was a member of the management board until November 30, 2021. His remuneration and benefits are included in the overview for the financial year 2021.

(2) This aggregate number also includes the 2021 cash bonus of Dr. Wigerinck, who was a member of the management board until November 30, 2021.

(3) Only management board members are granted long-term benefits. Pursuant to the Senior Management Bonus Scheme, these consist of the deferred part of the bonus from 3 years ago. For the financial year 2020 and 2021 the deferred part of the bonus was not paid out.

(4) Supervisory board member's mandate expired on April 30, 2019.

(5) Ms. Bosley waived her equity related remuneration for the financial year 2021.

(6) Mr. Guenter's supervisory board member's mandate began on April 30, 2019.

(7) Supervisory board member's mandate began on October 22, 2019.

(8) Supervisory board member's mandate began on April 28, 2020.

(9) Only management board members are granted post-employment benefits.

(10) Dr. Wigerinck's severance package excludes his 2021 bonus paid per December 2021 and includes a payment of €35,416.66 for December 2021 pursuant to a non-competition obligation. During the financial year 2022 these monthly payments pursuant to a non-competition obligation will continue until 30 November 2022, except if Galapagos waives this non-competition obligation.

(11) Management board member until November 30, 2021.

(12) Mr. Manto was appointed as Chief Commercial Officer and member of the management board, effective as of January 1, 2020. Hence Mr. Manto’s subscription rights grant for 2019 (40,000 subscription rights) is not included in the total number of subscription rights granted in the financial year 2019.

(13) This is the sum of the RSUs awarded during the respective financial year, excluding the RSUs representing the deferred portion of the bonus for 2019 in financial year 2019, for 2020 in financial year 2020 and for 2021 in financial year 2021 (each time to be granted in the following financial year). Only management board members were awarded RSUs.

OTHER

No loans, quasi-loans or other guarantees were given by Galapagos NV or any of its subsidiaries to members of the supervisory board and of the management board. We have not entered into transactions with our key management personnel, other than as described above with respect to remuneration arrangements relating to the exercise or termination of their mandates as members of the management board and the supervisory board.

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Consolidated companies as of December 31, 2021

12 Months Ended

Dec. 31, 2021

Consolidated companies as of December 31, 2021

Consolidated companies as of December 31, 2021

32. Consolidated companies as of December 31, 2021

		Year ended December 31,
		2021		2020	2019
Name of the subsidiary	Country	% voting right Galapagos NV (directly or indirectly through subsidiaries)	Change in % voting right previous period (2021 vs 2020)	% voting right Galapagos NV (directly or indirectly through subsidiaries)	% voting right Galapagos NV (directly or indirectly through subsidiaries)
BioFocus DPI AG (liquidated)	Switzerland	0%		0%	100%
Galapagos Biopharma Belgium BV	Belgium	100%		100%	100%
Galapagos Biopharma Netherlands B.V.	The Netherlands	100%		100%	100%
Galapagos Biopharma Spain S.L.U.	Spain	100%		100%	100%
Galapagos Biopharma Italy S.r.l.	Italy	100%		100%	100%
Galapagos Biopharma Germany GmbH	Germany	100%		100%	100%
Galapagos Biopharma Sweden AB	Sweden	100%	100%	0%	0%
Galapagos Biopharma Norway AS	Norway	100%	100%	0%	0%
Galapagos Biopharma Finland Oy	Finland	100%	100%	0%	0%
Galapagos Biopharma Denmark ApS	Denmark	100%	100%	0%	0%
Galapagos Biopharma Austria GmbH	Austria	100%	100%	0%	0%
Galapagos Biopharma Ireland Ltd	Ireland	100%	100%	0%	0%
Galapagos B.V.	The Netherlands	100%		100%	100%
Galapagos Biotech Ltd (formerly Inpharmatica Ltd.)	United Kingdom	100%		100%	100%
Galapagos GmbH	Switzerland	100%		100%	100%
Galapagos, Inc. (formerly Biofocus, Inc.)	United States	100%		100%	100%
Galapagos NV	Belgium	Parent company		Parent company	Parent company
Galapagos Real Estate Belgium BV (former Galapagos Real Estate 1 BV)	Belgium	100%		100%	100%
Galapagos Real Estate 2 BV	Belgium	0%		0%	100%
Galapagos Real Estate Netherlands B.V.	The Netherlands	100%		100%	100%
Galapagos SASU	France	100%		100%	100%
Fidelta d.o.o.	Croatia	0%	(100%)	100%	100%
Xenometrix, Inc. in liquidation	United States	100%		100%	100%

On January 4, 2021 we closed the sale of our fee-for-service business Fidelta. Selvita S.A. acquired 100% of the outstanding shares in Fidelta.

In 2021 the following new entities were incorporated: Galapagos Biopharma Sweden AB (Stockholm, Sweden), Galapagos Biopharma Norway AS (Oslo, Norway), Galapagos Biopharma Finland Oy (Helsinki, Finland), Galapagos Biopharma Denmark ApS (Kopenhagen, Denmark), Galapagos Biopharma Austria GmbH (Vienna, Austria) and Galapagos Biopharma Ireland Ltd (Dublin, Ireland).

There are no significant restrictions on the group’s ability to access or use assets and settle liabilities of one of the group’s subsidiaries.

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Financial risk management

12 Months Ended

Dec. 31, 2021

Financial risk management

Financial risk management

33. Financial risk management

Financial risk factors

Our financial risks are managed centrally. Our finance department coordinates the access to national and international financial markets and considers and manages continuously the financial risks concerning our activities. These relate to the following financial markets risks: credit risk, liquidity risk, currency risk and interest rate risk. Our interest rate risk is limited because we have nearly no financial debt. In case of decreasing interest rates we will face a reinvestment risk on our strong cash and cash equivalents and current financial investments balance. We do not buy or trade financial instruments for speculative purposes.

Categories of financial assets and liabilities:

	December 31,
	2021		2020		2019(*)
	(Euro, in thousands)
Financial assets held at fair value through profit or loss
Equity instruments	€	—	€	8,951	€	11,275
Current financial investments		1,317,460		1,571,858		3,919,216
Financial assets at amortized cost
Current financial investments		1,152,349		1,454,420		—
Cash and cash equivalents		2,233,368		2,135,187		1,861,616
Restricted cash (current and non-current)		1,425		1,482		1,418
Other non-current assets		1,048		907		1,399
Trade receivables		91,786		184,632		39,603
Total financial assets	€	4,797,436	€	5,357,438	€	5,834,526
Financial liabilities held at fair value through profit or loss
Current financial instruments	€	204	€	3,164	€	6,198
Financial liabilities at amortized cost
Trade liabilities		84,519		134,905		116,749
Lease liabilities		26,859		29,436		25,384
Total financial liabilities	€	111,582	€	167,505	€	148,331

(*) The historical consolidated financial information for 2019 presented in this disclosure note has been adjusted mainly to correct for the amounts of other receivables and other payables that are outside the scope of IFRS 9.

The carrying amounts of trade and other payables and trade and other receivables are considered to be the same as their fair values, due to their short-term nature.

Financial assets held at fair value through profit or loss

Financial assets held at fair value through profit or loss consisted of equity instruments of listed/non-listed companies and current financial investments.

We have no restrictions on the sale of these equity instruments and the assets are not pledged under any of our liabilities. These instruments are classified as financial assets held at fair value adjustment through profit or loss. The equity investments in listed companies qualified for level 1 fair value measurement based upon the closing price of such securities on Euronext at each reporting date.

The market price of those shares might face fluctuations and might be affected by a variety of factors, such as the global economic situation, the business development of competitors, sector mergers and acquisitions; it is difficult to mitigate this risk.

The fair value of the equity instrument in the non-listed company has been determined mainly by reference to the initial transaction price (classified as level 3 in the fair value hierarchy).

Current financial investments include money market funds in EUR and USD, which all classify for level 1 fair value measurement.

Liquidity risk

Current financial investments and cash and cash equivalents amounted to €4,703.2 million on December 31, 2021. Management forecasts our liquidity requirements to ensure that we have sufficient cash to meet operational needs. We have no credit lines. Such forecasting is based on realistic assumptions with regards to milestone and upfront payments to be received, taking into account our past track record, including the assumption that not all new projects that are being planned will be realized.

All our and cash and cash equivalents have only an insignificant liquidity risk as they are all convertible upon a maximum three month notice period and without incurring a significant penalty in normal market circumstances.

Credit risk

The term “credit risk” refers to the risk that counterparty will default on its contractual obligations resulting in financial loss for us.

The trade receivables consist of a receivables on our collaboration partner Gilead, creditworthy pharmaceutical wholesalers and hospitals in Europe. To limit the risk of financial losses, we have developed a policy of only dealing with creditworthy counterparties.

We grant credit to our clients in the framework of our normal business activities. Usually, we require no pledge or other collateral to cover the amounts due. Management continuously evaluates the client portfolio for creditworthiness. All our receivables are considered collectable.

We applied the IFRS 9 simplified approach to measuring expected credit losses, which uses a lifetime expected loss allowance for all receivables. To measure the expected credit losses, receivables have been grouped based on credit risk characteristics and the days past due. The provision for expected credit losses was not significant given that there have been no credit losses over the last three years and the high quality nature of our customers.

Aging balance of receivables that are due, but that are still considered collectable:

	December 31,
	2021		2020		2019
	(Euro, in thousands)
60 - 90 days	€	141	€	—	€	87
90 - 120 days		92		—		—
more than 120 days	€	113	€	—	€	—

Our cash and cash equivalents are invested primarily in current, notice and term accounts. For banks and financial institutions, only independently rated parties with a minimum rating of ‘A’ are accepted at the beginning of the term. Our current financial investments are also kept within different financial institutions and include term deposits, money market funds and treasury bills with an AAA rating. The money market funds are invested in a well-diversified portfolio of highly rated assets.

Interest rate risk

The only variable interest-bearing financial instruments are cash and cash equivalents and current financial investments. Our interest rate income is impacted by the negative interest rate environment in EUR, and the low interest rate environment in USD.

Changes in interest rates may cause variations in interest income and expenses resulting from short term interest-bearing assets. Management does not expect the short term interest rates to decrease significantly in the immediate foreseeable future, which limits the interest exposure on our cash and cash equivalents and current financial investments.

Effect of interest rate fluctuation

A 100 basis point increase in interest rates at balance sheet date would have increased profit or loss, and equity, by approximately €47.0 million (2020: €51.7 million; 2019: €57.8 million); a 100 basis point decrease in interest rates would have decreased profit or loss, and equity, by approximately €47.0 million (2020: €51.7 million; 2019: €57.8 million).

Foreign exchange risk

We are exposed to foreign exchange risk arising from various currency exposures. Our principal functional currency is euro, but we receive payments from our main collaboration partner Gilead in U.S. dollars and acquire some consumables and materials in U.S. dollars, Swiss Francs and GB Pounds.

To limit this risk, we attempt to align incoming and outgoing cash flows in currencies other than EUR. In addition, contracts closed by our different entities are mainly in the functional currencies of that entity, except for the alliance agreement signed with Gilead for which payments are denominated in U.S. dollars.

The exchange rate risk in case of a 10% change in the exchange rate amounts to:

	December 31,
	2021		2020		2019
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(83,996)	€	(116,690)	€	(133,373)
Increase in Euros - GB Pounds		1,093		303		113
Increase in Euros - CH Francs		233		2,013		538
Increase in Euros - HR Kunas		—		—		650
Increase in U.S. Dollars - GB Pounds	€	—	€	—	€	(894)

The exchange rate risk on the U.S. dollar is primarily related to our cash and cash equivalents and current financial investments held in U.S dollars.

Capital risk factors

We manage our capital to safeguard that we will be able to continue as a going concern. At the same time, we want to ensure the return to our shareholders through the results from our research and development activities.

Our capital structure consists of current financial investments, cash and cash equivalents, financial debt (we only have leasing debts as of December 31, 2021), and equity attributed to the holders of our equity instruments, such as capital, reserves and results carried forward, as mentioned in the consolidated statement of changes in equity.

We manage our capital structure and make the necessary adjustments in the light of changes of economic circumstances, the risk characteristics of underlying assets and the projected cash needs of the current research and development activities.

The adequacy of the capital structure will depend on many factors, including scientific progress in the research and development programs, the magnitude of those programs, the commitments to existing and new clinical CROs, the ability to establish new alliance or collaboration agreements, the capital expenditures, the new commercial activities, market developments and any future acquisition.

Neither Galapagos NV nor any of its subsidiaries are subject to any externally imposed capital requirements, other than those imposed by generally applicable company law requirements.

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Auditor's remuneration

12 Months Ended

Dec. 31, 2021

Auditor's remuneration

Auditor's remuneration

34. Auditor’s remuneration

The statutory auditor’s fees for carrying out its mandate at group level amounted to €860.3 thousand in 2021 (2020: €1,202.8 thousand). Audit-related fees, which generally the auditor provides, amounted to €101.1 thousand in 2021 (2020: €214.4 thousand). Other fees related to non-audit services executed by the statutory auditor amounted to €0 in 2021 (2020: €47.7 thousand). Other fees related to non-audit services executed by persons related to the statutory auditor amounted to €587.7 thousand in 2021 and related to advisory services in relation to IT and quality management (2020: €890.7 thousand). The audit committee and the supervisory board are of the opinion that these non-audit services do not affect the independence of the statutory auditor in the performance of his audit. The abovementioned additional fees were fully approved by the audit committee in accordance with article 3:64 of the Belgian Companies Code.

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Events after balance sheet date

12 Months Ended

Dec. 31, 2021

Events after balance sheet date

Events after balance sheet date

35. Events after balance sheet date

On January 13, 2022, the supervisory board approved Subscription Right Plan 2022 (A) within the framework of the authorized capital. Under this subscription right plan 30,000 subscription rights were offerend and accepted by the beneficiary of the plan. The subscription rights have an exercise term of eight years as of the date of the offer and have an exercise price of €46.18 (the closing price of the share on Euronext Amsterdam and Brussels on the day preceding the date of the offer). The subscription rights are not transferable. Subscription rights under this plan vest in instalments: with 25% of each grant being exercisable as of January 1, 2023, 25% as of January 1, 2024 and 50% (the remainder) as of January 1, 2025.

On January 26, 2022, the supervisory board approved Subscription Right Plan 2022 (B) for the benefit of a new member of the personnel of Galapagos within the framework of the authorized capital. Under this subscription right plan 1,000,000 subscription rights were created, subject to acceptance, and offered to the beneficiary of the plan. The subscription rights have an exercise term of eight years as of the date of the offer and have an exercise price of €50. The subscription rights can in principle not be exercised prior to January 1, 2026. 

On March 18, 2022, 95,500 subscription rights were exercised (with an average exercise price of €22.61 per subscription right), of which 50,000 subscription rights were exercised by our CEO and 10,000 subscription rights by one other member of our management board. This resulted in a share capital increase (including issuance premium) of €2,159,600.00 and the issuance of 95,500 new ordinary shares. The closing price of our share on March 18, 2022, was €57.38.

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Significant accounting policies (Policies)

12 Months Ended

Dec. 31, 2021

Significant accounting policies

Basis Of Presentation And Going Concern Assumption

BASIS OF PREPARATION AND GOING CONCERN ASSUMPTION

The consolidated financial statements are prepared in accordance with the International Financial Reporting Standards (IFRS), issued by the International Accounting Standards Board (IASB) and the interpretations issued by the IASB’s International Financial Reporting Interpretation Committee. The consolidated financial statements provide a general overview of our activities and the results achieved. They give a true and fair view of our financial position, our financial performance and cash flows, on a going concern basis.

New Standards and Interpretations Applicable for the Annual Period

NEW STANDARDS AND INTERPRETATIONS APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2020

New standards and interpretations applicable for the annual period beginning on January 1, 2020 did not have a material impact on our consolidated financial statements.

NEW STANDARDS AND INTERPRETATIONS APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2021

New standards and interpretations applicable for the annual period beginning on January 1, 2021 did not have a material impact on our consolidated financial statements.

Standards And Interpretations Published But Not Yet Applicable For The Annual Period

STANDARDS AND INTERPRETATIONS PUBLISHED, BUT NOT YET APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2021

A number of new standards are effective for annual periods beginning on or after January 1, 2022 with earlier adoption permitted. However we have not early adopted new or amended standards in preparing our consolidated financial statements. We are currently still assessing the impact of these new accounting standards and amendments that are not yet effective but we expect no standard to have a material impact on our financial statements in the period of initial application.

The following amendments are effective for the period beginning 1 January 2022:

● Onerous Contracts – Cost of Fulfilling a Contract (Amendments to IAS 37);

● Property, Plant and Equipment: Proceeds before Intended Use (Amendments to IAS 16);

● Annual Improvements to IFRS Standards 2018-2020 (Amendments to IFRS 1, IFRS 9, IFRS 16 and IAS 41); and

● References to Conceptual Framework (Amendments to IFRS 3).

The following amendments are effective for the period beginning 1 January 2023:

● Disclosure of Accounting Policies (Amendments to IAS 1 and IFRS Practice Statement 2);

● Definition of Accounting Estimates (Amendments to IAS 8);

● Deferred Tax Related to Assets and Liabilities arising from a Single Transaction (Amendments to IAS 12); and

● IFRS 17 Insurance Contracts and Amendments to IFRS 17.

Consolidated Reporting

CONSOLIDATED REPORTING

The consolidated financial statements comprise the financial statements of Galapagos NV and entities controlled by Galapagos NV. Control is achieved where Galapagos NV has the power to direct the relevant activities of another entity so as to obtain benefits from its activities. The results of subsidiaries are included in the statement of operations and statement of comprehensive income from the effective date of acquisition up to the date when control ceases to exist. Where necessary, adjustments are made to the financial statements of subsidiaries to ensure consistency with our accounting policies. All intra-group transactions, balances, income and expenses are eliminated when preparing the consolidated financial statements.

Intangible Assets

INTANGIBLE ASSETS

Expenditure on research activities is recognized as an expense in the period in which it is incurred.

An internally generated intangible asset arising from our development activities is recognized only if all of the following conditions are met:

● Technically feasible to complete the intangible asset so that it will be available for use or sale

● We have the intention to complete the intangible assets and use or sell it

● We have the ability to use or sell the intangible assets

● The intangible asset will generate probable future economic benefits, or indicate the existence of a market

● Adequate technical, financial and other resources to complete the development are available

● We are able to measure reliably the expenditure attributable to the intangible asset during its development

(i) Internally generated intangible assets

The amount capitalized as internally generated intangible assets is the sum of the development costs incurred as of the date that the asset meets the conditions described above. Because of risks and uncertainties inherent to the regulatory authorizations and to the development process itself, management estimates that the conditions for capitalization are not met until we obtain regulatory approval from the competent authorities.

Currently we recognize all development costs as an expense in the period in which they are incurred, even for approved products because they do not generate separately identifiable incremental future economic benefits that can be reliably measured.

(ii) Licences, patents & know-how

Acquired in-process research and development obtained through in-licensing agreements, business combinations, collaboration agreements or separate acquisitions are capitalized as an intangible asset provided that they are separately identifiable, controlled by us and expected to provide economic benefits. As the probability criterion in IAS 38 is always considered to be satisfied for separately acquired research and development assets, upfront and milestone payments to third parties for products or compounds for which regulatory approval has not yet been obtained are recognized as intangible assets. We consider such intangible assets as not yet available for use until the moment that the underlying asset is approved and commercially launched. Amortization will commence when the underlying asset is approved for commercialization and the asset will be amortized over its useful life.

Licenses, patents and know-how will be amortized over their useful life (generally between 5 and 20 years), using the straight-line method.

Intangible assets may also consist of upfront fees paid to third party institutions in exchange for an option to negotiate a license to any of the third party’s rights in technology resulting from the collaboration. The upfront fee paid in exchange for this option is capitalized as intangible asset and amortized over the expected duration of the option.

In the event an asset has an indefinite life, this fact is disclosed along with the reasons for being deemed to have an indefinite life. Intangible assets with an indefinite useful life and intangible assets which are not yet available for use are tested for impairment annually, and whenever there is an indication that the asset might be impaired.

(iii) Software

Acquired software is recognized at cost less accumulated amortization and any impairment loss. Amortization is recognized so as to write off the cost of assets over their useful lives (generally between 3 and 5 years), using the straight-line method.

(iv) Contract costs

Contract costs are those costs we incur to obtain a contract with a customer that we would not have incurred if the contract has not been obtained and are capitalized as intangible assets only if they are expected to be recoverable. Capitalized contract costs are amortized on a systematic basis that reflects the pattern of transfer of the related promised goods or services to the customer. Costs that we would have incurred regardless of whether the contract is obtained or those costs that are not directly related to obtaining a contract would not be capitalized.

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment are recognized at cost less accumulated depreciation and any impairment loss.

Depreciation of an asset begins when it is available for use, ie when it is in the location and condition necessary for it to be capable of operating in the manner intended by management.

Depreciation is recognized so as to write off the cost of assets over their useful lives, using the straight-line method, on the following bases:

● Installation & machinery: 3–15 years

● Furniture, fixtures & vehicles: 4–10 years

Leasehold improvements are depreciated 3 -10 years, being the term of the lease, unless a shorter useful life is expected.

The other tangible assets category mainly consists of assets under construction. Assets under construction are not depreciated.

Any gain or loss incurred at the disposal of an asset is determined as the difference between the sale proceeds and the carrying amount of the asset and is recognized in profit or loss.

Inventories

INVENTORIES

Inventories consist of raw materials, semi-finished products and finished products purchased for resale. These inventories are initially recognized at cost, and subsequently at the lower of cost and net realizable value. Cost comprises all costs of purchase, including transportation costs, and is determined using the FIFO-method.

Leases

LEASES

All leases are accounted for by recognizing a right-of-use asset and a corresponding lease liability except for:

● Leases of low value assets; and

● Leases with a duration of 12 months or less

Liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the lease payments that are not paid at the commencement date, discounted using the rate implicit in the lease. If this rate cannot be readily determined, we will apply the incremental borrowing rate. The lease payments can include fixed payments, variable payments that depend on an index or rate known at the commencement date, expected residual value guarantees, termination penalties and extension option payments or purchase options if we are reasonably certain to exercise this option.

After initial recognition, the lease liability will be measured at amortized cost using the discount rate determined at commencement and will be re-measured (with a corresponding adjustment to the related right-of-use asset) when there is a change in future lease payments in case of renegotiation, changes of an index or rate or in case of reassessment of options.

At the commencement date, the right-of-use assets are measured at cost, comprising the amount of the initial lease liability, initial direct costs and the expected dismantling and removing costs (when we incur an obligation for these costs), less any lease incentives received from the lessors.

After initial recognition, the right-of-use assets are measured at cost and depreciated over the shorter of the underlying asset's useful life and the lease term on a straight-line basis. The right-of-use assets will be adjusted for any re-measurements of the lease liability as a result of lease modifications. The right-of-use assets are subject to impairment testing if there is an indicator for impairment, as for property, plant and equipment. The right-of-use assets are presented in the statement of financial position under the caption “Property, plant and equipment” and the lease liabilities are presented as current and non-current lease liabilities.

In determining the lease term, we consider all facts and circumstances that create an economic incentive to exercise an extension option, or not exercise a termination option. We only include extension options (or periods after termination options) in the lease term if the lease is reasonably certain to be extended (or not terminated). The assessment is reviewed if a significant event or a significant change in circumstances occurs which affects this assessment and that is within our control.

Each lease payment is allocated between the liability and financial expenses. The finance cost is charged to the income statement over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

Financial Instruments

FINANCIAL INSTRUMENTS

Financial assets and financial liabilities are recognized on our balance sheet when we become a party to the contractual provisions of the instrument. We do not actively use currency derivatives to hedge planned future cash flows, nor do we make use of forward foreign exchange contracts, outside of the Gilead transaction, fully settled at December 31, 2019. Additionally, we do not have financial debts at December 31, 2021.

(i) Financial assets

Financial assets are initially recognized either at fair value or at their transaction price. All recognized financial assets will subsequently be measured at either amortized cost or fair value under IFRS 9 on the basis of both our business model for managing the financial assets and the contractual cash flow characteristics of the financial asset.

● a financial asset that (i) is held within a business model whose objective is to collect the contractual cash flows and (ii) has contractual cash flows that are solely payments of principal and interest on the principal

amount outstanding is measured at amortized cost (net of any write down for impairment), unless the asset is designated at fair value through profit or loss (FVTPL) under the fair value option;

● a financial asset that (i) is held within a business model whose objective is achieved both by collecting contractual cash flows and selling financial assets and (ii) has contractual terms that give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding, is measured at fair value through other comprehensive income (FVTOCI), unless the asset is designated at FVTPL under the fair value option;

● all other financial assets are measured at FVTPL.

A financial asset is classified as current when the cash flows expected to flow from the instrument mature within one year.

We derecognize a financial asset when the contractual rights to the cash flows from the asset expire, or we transfer the rights to receive the contractual cash flows on the financial asset in a transaction in which substantially all the risks and rewards of ownership of the financial asset are transferred.

We classify non-derivative financial assets into the following categories:

● financial assets at fair value through profit or loss (equity instruments, current financial investments and cash equivalents)

● financial assets at amortized cost (receivables, current financial investments and cash and cash equivalents).

Financial assets at fair value through profit or loss

Financial assets are designated at fair value through profit or loss if we manage such investments and make purchase and sale decisions based on their fair value in accordance with the investment strategy. Attributable transaction costs are recognized in profit or loss as incurred. Financial assets at fair value through profit or loss are measured at fair value, and changes therein, which take into account any dividend income, are recognized in profit or loss.

Equity instruments

We hold investments in equity instruments, which based on IFRS 9, are designated as financial assets at fair value through profit or loss. The fair value of listed investments is based upon the closing price of such securities on Euronext at each reporting date. If there is no active market for an equity instrument, we establish the fair value by using valuation techniques.

Current financial investments measured at fair value through profit or loss

Current financial investments include financial assets measured at fair value through profit or loss and may comprise short term bond funds that have a maturity equal or less than 12 months, and money market funds.

Cash equivalents measured at fair value through profit or loss

Cash equivalents measured at fair value through profit or loss may comprise bonds and money market funds that are readily convertible to cash and are subject to an insignificant risk of changes in value.

Financial assets at amortized cost

Receivables

Receivables are designated as financial assets measured at amortized cost. They are initially measured either at fair value or at transaction price, in the absence of a significant financing component.

All receivables are subsequently measured in the balance sheet at amortized cost, which generally corresponds to nominal value less expected credit loss provision.

Receivables mainly comprise trade and other receivables and current/non-current R&D incentives receivables.

The R&D incentives receivables relate to refunds resulting from R&D incentives on research and development expenses in France and Belgium. Research and development incentives receivables are discounted over the period until maturity date according to the appropriate discount rates.

Current financial investments measured at amortized cost

Current financial investments measured at amortized cost include treasury bills that have a maturity equal or less than 12 months. We apply settlement date accounting for the recognition and de-recognition of current financial investments measured at amortized cost. Current financial investments measured at amortized cost also include short-term deposits with maturities exceeding three months from the acquisition date.

Cash and cash equivalents measured at amortized cost

Cash and cash equivalents measured at amortized cost mainly comprise of notice accounts and short-term deposits that are readily convertible to cash within three months or less and that are subject to an insignificant risk of changes in value.

Cash and cash equivalents exclude restricted cash, which is presented in the line other non-current assets in the statement of financial position.

(ii) Financial liabilities

Financial liabilities are initially measured either at fair value or at their transaction price. Subsequent to initial recognition, financial liabilities are measured at amortized cost.

Financial liabilities mainly comprise trade and other liabilities.

Trade and other liabilities are comprised of liabilities that are due less than one year from the balance sheet date and are in general not interest bearing and settled on an ongoing basis during the financial year. They also include accrued expense related to our research and development project costs.

We derecognize a financial liability when its contractual obligations are discharged, cancelled or expire.

(iii) Financial instruments: derivative assets/liabilities

Financial assets and financial liabilities are recognized on our balance sheet when we become a party to the contractual provisions of the instrument.

Derivative assets and liabilities are initially measured at fair value. After initial measurement we will measure the derivatives at fair value through profit or loss.

Taxation

TAXATION

Income tax in the profit or loss accounts represents the sum of the current tax and deferred tax.

Current tax is the expected tax payable on the taxable profit of the year. The taxable profit of the year differs from the profit as reported in the financial statements as it excludes items of income or expense that are taxable or deductible in other years and it further excludes items that are never taxable or deductible. Our liability for current tax is calculated using tax rates that have been enacted or substantively enacted by the balance sheet date.

Deferred income tax is provided in full, using the liability-method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the financial statements. However, the deferred income tax is not accounted for if it arises from the initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting nor taxable profit nor loss.

Deferred income tax is determined using tax rates (and laws) that have been enacted or substantively enacted by the balance sheet date and are expected to apply when the related deferred income tax asset is realized or the deferred income tax liability is settled. Deferred tax assets are recognized to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized. As such, a deferred tax asset for the carry forward of unused tax losses will be recognized to the extent that is probable that future taxable profits will be available.

Foreign Currencies

FOREIGN CURRENCIES

● Functional and presentation currency

Items included in the financial statements of each of our entities are valued using the currency of the primary economic environment in which the entity operates. The consolidated financial statements are presented in Euros, which is our presentation currency.

● Transactions and balances in foreign currency

Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of transaction. Foreign currency gains and losses resulting from the settlement of such transactions and from the translation at closing rates of monetary assets and liabilities denominated in foreign currencies are recognized in the financial result in the statement of operations.

Non-monetary assets and liabilities measured at historical cost that are denominated in foreign currencies are translated using the exchange rate at the date of the transaction.

● Financial statements of foreign group companies

The results and financial position of all our entities that have a functional currency different from Euro are translated as follows:

● Assets and liabilities for each balance sheet presented are translated at the closing rate at the date of that balance sheet;

● Income and expenses for each statement of operations are translated at average exchange rates;

● All resulting cumulative exchange differences are recognized as a separate component of equity;

● Such cumulative exchange differences are recognized in profit or loss in the period in which the foreign operation is disposed of.

Recognition Of Expenses Linked To Clinical Trial Milestones

RECOGNITION OF EXPENSES LINKED TO CLINICAL TRIAL MILESTONES

We recognize expenses specifically linked to clinical trial milestones with regard to patient recruitment and patient treatment (i.e. completion), incurred in carrying out clinical trials, in line with actual patient recruitment or treatment at each period end, in reference to the milestone targets for patient recruitment or treatment.

This involves the calculation of clinical trial accruals at each period end, for which an estimation of the expected full clinical trial milestone cost is required, as well as the current stage of patient recruitment or treatment.

Clinical trials usually take place over extended time periods and typically involve a set-up phase, a recruitment phase and a completion phase which ends upon the receipt of a final report containing full statistical analysis of trial results. Accruals for patient recruitment and patient completion are prepared separately for each clinical trial in progress

and take into consideration the stage of completion of each trial including the number of patients that have entered the trial and the number of patients that have been treated in the trial. In all cases, the full cost of each trial is expensed by the time the final report is received.

Revenue Recognition

REVENUE RECOGNITION

Revenues to date have consisted principally of collaboration revenues, which consist of milestones, license fees, non-refundable upfront fees and royalties received in connection with collaboration and license agreements. Starting in 2021 we also have commercial revenues from the sales of Jyseleca, which are reported as “Product net sales” in our consolidated income statement. We also generated revenue from our fee-for-service activities, which is reported as discontinued operations per December 31, 2020.The revenue recognition policies can be summarized as follows:

We recognize revenue when our customer obtains control of promised goods or services, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. To determine revenue recognition for agreements that we determine are within the scope of IFRS 15, we perform the following five steps:

COLLABORATION REVENUES

(i) identify the contract

In our current agreements with customers we are mainly transferring licenses on our IP and in some cases this is combined with access rights and/or providing research and development services and/or cost sharing mechanisms. In some cases our collaborations also include an equity subscription component. If this is the case, we analyze if the criteria to combine contracts, as set out by IFRS 15, are met.

(ii) identify the performance obligations in the contract

Depending on the type of the agreement, there can be one or more distinct performance obligations under IFRS 15. This is based on an assessment of whether the promises in an agreement are capable of being distinct and are distinct from the other promises to transfer goods and/or services in the context of the contract. For some of our agreements we combine the transfer of the license with the performance of research and development activities because we consider that the license is not capable of being distinct and is not distinct in the context of the contract.

(iii) determine the transaction price

Collaboration and license agreements with our commercial partners for research and development activities generally include non-refundable upfront fees; milestone payments, the receipt of which is dependent upon the achievement of certain clinical, regulatory or commercial milestones; license fees, royalties on sales and sometimes reimbursement income or profits sharing arrangements.

a/ License fees or upfront payments

If the license to our intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, we recognize revenues from non-refundable upfront fees allocated to the license at the point in time the license is transferred to the customer and the customer has the right to use the license.

For licenses that are bundled with other promises, we utilize judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time. If the performance obligation is satisfied over time, revenue is then recognized based on a pattern that best reflects the transfer of control of the service to the customer.

b/ Milestone Payments other than sales based milestones

A milestone payment is only included in the transaction price to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Where milestone payments are included in the transaction price we estimate the amount to be included in the transaction price using the most likely amount method. The

transaction price is allocated to each performance obligation on a stand-alone selling price basis. We recognize revenue as or when the performance obligations under the contract are satisfied. At the end of each subsequent reporting period, we re-evaluate the probability of achievement of such milestones and any related constraint. If necessary we adjust our estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenue and earnings in the period of adjustment.

c/ Reimbursement Income for R&D Services

Collaboration and license agreements may include reimbursement or cost sharing for research and development services: such as outsourcing costs and payment for FTEs at contractual rates. R&D services are performed and satisfied over time given that the customer simultaneously receives and consumes the benefits provided by us.

Such costs reimbursements received are recognized in revenues when costs are incurred and agreed by the parties when we are acting as a principal in the scope of our stake of the R&D activities. If the later condition is not fulfilled, costs reimbursements are accounted for as a decrease of the related expenses.

d/ Sales based milestone payment and Royalties

License and collaboration agreements include sales-based royalties, including commercial milestone payments based on the level of sales, and the license has been deemed to be the predominant item to which the royalties relate. Related revenue is recognized as the subsequent underlying sales occur.

(iv) allocate the transaction price to the performance obligations in the contract

We allocate the transaction price to each performance obligation identified in the contract based upon the stand-alone selling price. The stand-alone selling price of each performance obligation is estimated by using one of the following methods: adjusted market assessment approach, the expected cost plus a margin approach or the residual approach. If management assesses that there is only one single performance obligation, the entire transaction price would be allocated to this performance obligation.

(v) recognize revenue when (or as) the entity satisfies a performance obligation

Revenue is recognized when our customer obtains control of the goods and/or services foreseen in the contracts. The control can be transferred over time or at a point in time – which results in recognition of revenue over time or at a point in time.

In case of revenue recognition over time, we use either an input model that considers estimates of the percentage of total research and development costs that are completed each period compared to the total estimated costs (percentage of completion method) or we apply an output method to measure the progress of the satisfaction of the underlying performance obligation. In other cases, depending on specific circumstances, we recognize revenue on a straight-line basis over the estimated term of the performance obligation.

PRODUCT NET SALES

Revenue on the sale of Jyseleca is recorded as “Product net sales” in our consolidated income statement.

Product net sales is the net amount of revenue recognized resulting from transferring control over our products to our customer (for example wholesalers and hospitals). Product sales revenue is recognized at a point in time when control of the goods has transferred to the customer. This is generally when the goods are delivered to the customer depending on the specific incoterms in the contract with a customer.

The amount of revenue recognized is the amount allocated to the satisfied performance obligation taking into account variable consideration. The estimated amount of variable consideration is included in the transaction price only to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration that is included in the transaction price is primarily composed of rebates, discounts, cash discounts and chargebacks granted to various customers that are part of commercial and governmental contractual arrangements or other

reimbursement programs. Shelf stock adjustments are granted to some of our customers to cover the inventory held by them at the time of a price decrease becomes effective. A liability is recognized for expected rebates, cash discounts, chargebacks or other reimbursements payable directly or indirectly to customers in relation to sales made until the end of the reporting period.

The amount of variable consideration is estimated using several elements such third-party market data, product pricing, the specific terms in the individual agreements, estimated inventory levels and the shelf life of our product. If actual results differ, these estimates will be adjusted.

Net sales are presented net of value added tax and other sales related taxes.

We refer to note 6 for detailed information per agreement and to our Critical judgments in applying accounting policies for more information.

COST OF SALES

Cost of sales includes primarily the purchase cost of the goods sold and transportation costs.

OTHER OPERATING INCOME

Grants and R&D incentives

As we carry out extensive research and development activities, we benefit from various grants and R&D incentives from certain governmental agencies. These grants and R&D incentives generally aim to partly reimburse (approved) expenditures incurred in our research and development efforts and are credited to the statement of operations, under other income, when the relevant expenditure has been incurred and there is reasonable assurance that the grants or R&D incentives are receivable.

Equity Instruments

EQUITY INSTRUMENTS

Equity instruments issued by us are measured by the fair value of the proceeds received, net of direct issue costs.

Employee Benefits

EMPLOYEE BENEFITS

a/ Defined contribution plans

Contributions to defined contribution pension plans are recognized as an expense in the statement of operations as incurred.

b/ Defined benefit plans

For defined retirement benefit plans, the cost of providing benefits is determined using the projected unit credit method, with actuarial valuations being carried out at the end of each annual reporting period. Re-measurement, comprising actuarial gains and losses, the effect of the changes to the asset ceiling (if applicable) and the return on plan assets (excluding interest), is reflected immediately in the statement of financial position with a charge or credit recognized in other comprehensive income in the period in which they occur. Re-measurement recognized in other comprehensive income is reflected immediately in retained earnings and will not be reclassified to profit or loss. Past service cost is recognized in profit or loss in the period of a plan amendment. Net interest is calculated by applying the discount rate at the beginning of the period to the net defined benefit liability or asset.

Defined benefit costs are categorized as follows:

● Service cost (including current service cost, past service cost, as well as gains and losses on curtailments and settlements)

● Net interest expenses or income

● Re-measurement

The retirement benefit obligation recognized in the consolidated statement of financial position represents the actual deficit or surplus in the defined benefit plans. Any surplus resulting from this calculation is limited to the present value of any economic benefits available in the form of refunds from the plans or a reduction in future contributions to the plans. A liability for a termination benefit is recognized at the earlier of when we can no longer withdraw the offer of the termination benefit and when we recognize any related restructuring costs.

c/ Staff bonus plan

We recognize an expense in the statement of operations for staff bonus plans.

d/ Management bonus plan

(I)Bonuses which were granted for performance years until 2018

The management board members, together with other senior managers, are eligible to receive bonuses under the Senior Management Bonus Scheme established in 2006. Pursuant to the rules of the Senior Management Bonus Scheme, 50% of the bonus is paid immediately around year-end and the payment of the remaining 50% is deferred for three years. The deferred 50% component is dependent on the Galapagos share price change relative to the Next Biotech Index (which tracks Euronext-listed biotech companies). The Galapagos share price and the Next Biotech Index at the start and end of the 3-year period is calculated by the average price over the preceding and last month of the 3-year period, respectively.

● If the Galapagos share price change is better than or equal to the change in the Next Biotech Index, the deferred bonus will be adjusted by the share price increase/decrease percentage and paid out

● If the Galapagos share price change is up to 10% worse than the change in the Next Biotech Index, 50% of the deferred bonus will be adjusted by the share price increase/decrease percentage and paid out, and the remainder will be forfeited

● If the Galapagos share price change is more than 10% worse than the change in the Next Biotech Index the deferred bonus will be forfeited

We recognize the possible payment of the deferred component of the Senior Management Bonus Schemes within three years at the moment that the bonus amount is determined, based on the fair value of the liability at each reporting period. The fair value of the liability is measured by use of the Monte Carlo valuation model taking into consideration (a) the average reference price of the Galapagos share and Next Biotech Index, (b) the average price of the reporting period of the Galapagos share and the Next Biotech Index, (c) the simulation of the evolution of the Galapagos share price and the Next Biotech Index based on their volatility and correlation until maturity of the bonus, (d) the applicable discount rates at the end of the reporting period and (e) the probability of the number of beneficiaries assumed to stay with us until maturity of the bonus. The changes in fair value are recognized in profit or loss for the period.

(II)Bonuses which were granted for performance year 2019 and beyond

The management board members, together with other senior managers are eligible to receive a bonus based on achievement of personal and corporate objectives. This bonus is paid in cash.

Share-Based Payments

SHARE-BASED PAYMENTS

a/ Equity-settled share based payments

We grant equity-settled incentives to certain employees, members of the supervisory board and consultants in the form of subscription rights. Equity-settled subscription rights are measured at fair value at the date of acceptance. The fair value determined at the acceptance date of the subscription rights is expensed over time until the end of the vesting period, based on our estimate of subscription right warrants that are expected to be exercised. Fair value is measured by use of the Black & Scholes model. The expected life used in the model has been adjusted, based on management’s best estimate, for the effects of non-transferability, exercise restrictions, and behavioral considerations.

b/ Long-term incentive plans in RSU’s (Restricted Stock Units)

Management board members and other employees are granted RSU’s. An RSU is a grant that takes the form of a promise that employees will receive Galapagos stock in the future and it will be payable, at the company’s discretion in cash or in shares, upon completion of a certain vesting period. Each RSU reflects the value of one Galapagos share.

The RSU’s are measured based on the average share price over the 30-calendar day period preceding the measurement date. We recognize the corresponding expense and liability over the vesting period. The fair value of the liability is re-measured at each reporting date because currently it is management’s intention to settle the RSU’s in cash.

Provisions

PROVISIONS

Provisions are recognized in the statement of financial position when we have a present obligation as a result of a past event; when it is probable that an outflow of resources embodying economic benefits will be required to settle the obligations and a reliable estimate can be made of the amount of the obligations. The amount recognized as a provision is the best estimate of the expenditure required to settle the present obligation at the balance sheet date. If the effect is material, provisions are determined by discounting the expected future cash flows at a pre-tax rate that reflects current market assessments of the time value of the money and, when appropriate, the risk specific to the liability.

Impairment

IMPAIRMENT

(i) Financial assets

The impairment loss of a financial asset measured at amortized cost is calculated based on the expected loss model.

For trade receivables, in the absence of a significant financing component, the loss allowance is measured at an amount equal to lifetime expected credit losses. Those are the expected credit losses that result from all possible default events over the expected life of those trade receivables.

Impairment losses are recognized in the consolidated statement of operations.

(ii) Property, plant and equipment and intangible assets

For intangible assets with an indefinite life or intangible assets not available for use yet, we perform an impairment test at least on an annual basis. Furthermore we review at each balance sheet date the carrying amount of our tangible and intangible assets to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss (if any). Where the asset does not generate cash flows that are independent from other assets, we estimate the recoverable amount of the cash-generating unit to which the asset belongs.

If the recoverable amount of an asset or cash generating unit is estimated to be less than the carrying amount, the carrying amount of the asset is reduced to its recoverable amount. An impairment loss is recognized as an expense immediately.

When an impairment loss subsequently reverses, the carrying amount of the asset is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined, had no impairment loss been recognized for the asset in prior years. A reversal of an impairment loss resulting from a sale of a subsidiary is recognized as income. In other cases impairment losses of goodwill are never reversed.

Net Income / Loss Per Share

NET INCOME / LOSS PER SHARE

Basic net income/loss per share is computed based on the weighted average number of shares outstanding during the period. Diluted net income per share is computed based on the weighted average number of shares outstanding including the dilutive effect of warrants, if any.

Segment Reporting

SEGMENT REPORTING

We currently have one operating and reportable segment. Prior to the disposal of our fee-for-service business Fidelta our reportable segments were R&D and fee-for-service business. Fidelta is reported as discontinued operations at December 31, 2020 and at December 31, 2021.

Assets held for sale and discontinued operations

ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS

A discontinued operation is a component of an entity that either has been disposed of, or that is classified as held for sale. It must either: represent a major separate line of business or geographical area of operations; be part of a single coordinated disposal plan; or be a subsidiary acquired exclusively with a view to resale.

Intercompany transactions between continuing and discontinued operations are eliminated against discontinuing operations.

Non-current assets and disposal groups are classified as assets held for sale if their carrying amount is to be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the asset (or disposal group) is available for immediate sale in its present condition.

They are stated at the lower of carrying amount and fair value less costs to sell with any resulting impairment recognized. Assets related to discontinued operations and assets of disposal group held for sale are not depreciated.

On January 4, 2021, we sold of our fee-for-service business Fidelta. We classified the assets and the associated liabilities of Fidelta as held for sale in our financial statements for the year ended December 31, 2020.

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Segment information (Tables)

12 Months Ended

Dec. 31, 2021

Segment information

Summary of collaboration revenues by destination

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
United States of America	€	467,978	€	472,445	€	793,873
Europe		2,114		5,605		41,028
Total collaboration revenues	€	470,093	€	478,051	€	834,901

Summary of revenues by major customers

		Year ended December 31,
		2021			2020				2019
		(Euro, in thousands)	%		(Euro, in thousands)	%			(Euro, in thousands)	%
Gilead:
United States of America (1)	€	467,978	100%	€	472,445	99%		€	793,873	95%
Europe (1)		2,071	0%		1,460	0%			(4,570)	(1)%
AbbVie:
Europe		—	0%		(52)	0%			26,356	3%
Novartis:
Europe		—	0%		4,125	1%			19,177	2%
Total revenues from major customers	€	470,049	100%	€	477,978	100%	€	€	834,836	100%

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019, included a negative catch-up effect on closing date of €245.9 million resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

Schedule of non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets, and rights arising under insurance contracts by location

	December 31,
	2021		2020		2019(*)
		(Euro, in thousands)
Belgium	€	98,295	€	113,524	€	57,007
France		21,051		18,398		18,102
The Netherlands		66,621		28,210		7,951
Croatia		—		—		6,182
Switzerland		7,181		7,668		1,057
Spain		3,029		2,755		—
Other		1,438		388		681
Total non-current assets	€	197,615	€	170,943	€	90,979

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Total revenues (Tables)

12 Months Ended

Dec. 31, 2021

Total revenues

Revenue by collaboration and by category of revenue

	Over time	Point in time		2021		2020		2019
				(Euro, in		(Euro, in		(Euro, in
				thousands)		thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	433,884	€	411,417	€	812,058
Gilead collaboration agreement for ziritaxestat		Ö		-		-		666,968
Gilead collaboration agreement for filgotinib (1)	Ö			203,301		181,816		62,602
Gilead collaboration agreement for drug discovery platform	Ö			230,582		229,601		80,918
AbbVie collaboration agreement for CF	Ö			-		-		1,569
Milestone payments				32,408		46,261		2,878
Gilead collaboration agreement for filgotinib (1)	Ö			32,408		46,261		(21,187)
AbbVie collaboration agreement for CF	Ö			-		-		24,065
Reimbursement income				-		4,073		19,900
Novartis collaboration agreement for MOR106	Ö			-		4,125		19,177
AbbVie collaboration agreement for CF	Ö			-		(52)		723
Royalties				3,801		16,300		66
Gilead royalties on Jyseleca		Ö		3,757		16,227		-
Other royalties		Ö		43		72		66
Total collaboration revenues			€	470,093	€	478,051	€	834,901

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019 included a negative catch-up effect on closing date of €245.9 million resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

Summary of allocation of transaction price

	December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020		Other movements in 2021		Filgotinib amendment (September 6, 2021)		December 31, 2021
Allocation of transaction price
Upfront consideration	€	3,845,373			€	160,000	€	4,005,373			€	12,643	€	4,018,016
Milestones achieved		104,171	€	90,192				194,363						194,363
Royalties		—		16,227				16,227	€	3,757				19,984
Impact initial valuation of share subscription		124,604						124,604						124,604
		4,074,148		106,419		160,000		4,340,567		3,757		12,643		4,356,967
Less :
Warrants issuance liabilities
Warrant A		(43,311)						(43,311)						(43,311)
Initial warrant B		(2,545)						(2,545)						(2,545)
Subsequent warrant B		(16,184)		8,325				(7,859)		5,417				(2,442)
		4,012,108		114,744		160,000		4,286,852		9,174		12,643		4,308,669
Allocation to performance obligations
Ziritaxestat		666,967						666,967						666,967
Filgotinib (1)		1,060,395		106,419	€	160,000		1,326,814		3,757	€	12,643		1,343,214
Drug discovery platform (10 years)	€	2,284,747	€	8,325			€	2,293,072	€	5,417			€	2,298,489

(1)With regard to the additional consideration received as a result of the Option, License and Collaboration agreement (July 14, 2019) allocated to the filgotinib performance obligation, we assumed the existence of a significant financing component estimated to €44.5 million as of December 31, 2019 reflecting the time value of money on the estimated recognition period. This financing component was reassessed to €55.3 million as of December 31,2020, and to €57.3 million at December 31, 2021.

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Operating costs and other operating income (Tables)

12 Months Ended

Dec. 31, 2021

Income and expenses

Summary of research and development expenditure

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(165,239)	€	(161,509)	€	(118,875)
Subcontracting		(251,085)		(301,841)		(255,725)
Disposables and lab fees and premises costs		(24,025)		(22,349)		(19,573)
Depreciation		(17,518)		(11,707)		(9,330)
Professional fees		(15,862)		(12,692)		(1,834)
Other operating expenses		(17,978)		(13,570)		(14,754)
Total R&D expenses	€	(491,707)	€	(523,667)	€	(420,090)

Summary of R&D expenditure by program

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Filgotinib program	€	(171,204)	€	(126,879)	€	(100,032)
Ziritaxestat program		(26,725)		(55,902)		(75,951)
OA program on GLPG1972		(2,285)		(22,966)		(19,958)
Toledo program		(91,957)		(87,107)		(47,204)
TYK2 program on GLPG3667		(27,141)		(20,199)		(10,728)
AtD program on MOR106		(112)		(7,618)		(24,051)
Other programs		(172,284)		(202,996)		(142,166)
Total R&D expenses	€	(491,707)	€	(523,667)	€	(420,090)

Summary of general and administrative expenses

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(71,190)	€	(70,110)	€	(51,204)
Depreciation and impairment		(16,621)		(5,147)		(1,421)
Legal and professional fees		(26,072)		(25,592)		(11,568)
Other operating expenses		(27,016)		(17,908)		(8,190)
Total general and administrative expenses	€	(140,899)	€	(118,757)	€	(72,382)

Summary of sales and marketing expenses

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Personnel costs	€	(59,102)	€	(31,727)	€	(7,558)
Depreciation		(504)		(140)		(61)
External outsourcing costs		(62,321)		(31,885)		(7,558)
Sales and marketing expenses recharged to/from (-) Gilead		59,699		4,711		(8,164)
Professional fees		(532)		(3,420)		(459)
Other operating expenses		(7,196)		(4,007)		(777)
Total sales and marketing expenses	€	(69,956)	€	(66,468)	€	(24,577)

Schedule of other income

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Grant income	€	7,334	€	5,452	€	6,549
R&D incentives		44,888		45,951		43,923
Other income		1,526		804		425
Total other operating income	€	53,749	€	52,207	€	50,896

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Staff costs (Tables)

12 Months Ended

Dec. 31, 2021

Staff costs

Staff costs

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Wages and salaries	€	(175,167)	€	(139,681)	€	(113,660)
Social security costs		(29,934)		(26,471)		(14,566)
Pension costs		(8,467)		(7,337)		(4,715)
Costs related to subscription right plans		(70,726)		(79,959)		(38,297)
Other personnel costs		(11,237)		(9,897)		(6,399)
Total personnel costs	€	(295,531)	€	(263,345)	€	(177,637)

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Fair value re-measurement of share subscription agreement and warrants granted to Gilead (Tables)

12 Months Ended

Dec. 31, 2021

Fair value re-measurement of share subscription agreement and warrants granted to Gilead

Schedule of fair value re-measurement of the financial instrument related to the share subscription agreement, issuance of warrant A and B

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Fair value re-measurement of the share subscription agreement	€	—	€	—	€	(142,350)
Fair value re-measurement of warrant A		—		—		(35,642)
Fair value re-measurement of initial warrant B		2,960		3,034		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	2,960	€	3,034	€	(181,644)

Fair value re-measurement of the Gilead share subscription agreement
	(Euro, in thousands)
Fair value of financial asset at signing date	€	85,601
Change in fair value recorded in profit or loss		(142,350)
Fair value of financial liability at closing date		(56,749)
Derecognition at closing date		56,749
Fair value on December 31, 2019	€	—

Fair value re-measurement of the financial instrument related to the issuance of warrant A
	(Euro, in thousands)
Fair value of financial liability at warrant approval date	€	(43,311)
Change in fair value recorded in profit or loss		(35,642)
Derecognition at warrant A exercise date		78,953
Fair value on December 31, 2019	€	—

Fair value re-measurement of the financial instrument related to the issuance of initial warrant B	2021		2020		2019
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(3,164)	€	(6,198)
Fair value of financial liability at warrant approval date					€	(2,545)
Change in fair value recorded in profit or loss		2,960		3,034		(3,653)
Fair value on December 31,	€	(204)	€	(3,164)	€	(6,198)

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Other financial income / expenses (Tables)

12 Months Ended

Dec. 31, 2021

Income and expenses

Schedule of other financial income and expense

	Year ended December 31,
	2021		2020		2019
		(Euro, in thousands)
Other financial income:
Interest on bank deposit	€	2,865	€	10,030	€	14,305
Effect of discounting long term R&D incentives receivables		93		93		93
Currency exchange gain		60,727		4,697		775
Fair value gain on financial assets held at fair value through profit or loss		—		2,397		5,355
Fair value gain on current financial investments		6,763		—		611
Gain upon sale of financial assets held at fair value through profit or loss		—		—		2
Other finance income		100		1,450		248
Total other financial income		70,548		18,667		21,389
Other financial expenses:
Interest expenses		(11,656)		(9,389)		(1,268)
Effect of discounting long term deferred income		(9,289)		(16,278)		(6,900)
Currency exchange loss		(4,235)		(110,416)		(47,720)
Fair value loss on financial assets held at fair value through profit or loss		(4,919)		—		—
Loss upon sale of financial assets held at fair value through profit or loss		—		(88)		—
Fair value loss on current financial investments		—		(15,901)		(3,700)
Other finance charges		(812)		(773)		(380)
Total other financial expense		(30,911)		(152,844)		(59,968)
Total net other financial expense (-)/ income	€	39,637	€	(134,177)	€	(38,579)

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Taxes

Income tax recognized in profit or loss

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Continuing operations
Current tax	€	(2,020)	€	(1,069)	€	(1,372)
Deferred tax		(404)		(157)		1,537
Income taxes	€	(2,423)	€	(1,226)	€	165

Tax Liabilities

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Current tax payable	€	1,782	€	1,248	€	2,037
Total tax liabilities	€	1,782	€	1,248	€	2,037

Tax reconciled to the accounting result

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Income/loss (-) before tax	€	(122,999)	€	(309,775)	€	148,525
Income tax debit/credit (-), calculated using the Belgian statutory tax rate on the accounting income/loss (-) before tax (theoretical)		(30,750)		(77,444)		43,934
Tax expenses/income (-) in statement of operations (effective)		2,423		1,226		(165)
Difference in tax expense/income to explain	€	33,173	€	78,670	€	(44,097)
Effect of tax rates in other jurisdictions	€	(582)	€	184	€	960
Effect of non-taxable revenues		(9,413)		(10,196)		(13,079)
Effect of share based payment expenses without tax impact		17,682		19,990		10,318
Effect of expenses/income (-) not subject to tax		(907)		(639)		53,394
Effect of non tax-deductible expenses		3,812		1,053		724
Effect of recognition of previously non-recognized deferred tax assets		(1,411)		(475)		(2,286)
Effect of tax losses (utilized) reversed		(404)		(150)		(136)
Effect of under or over provision in prior periods		(840)		(25)		30
Effect of non-recognition of deferred tax assets		25,613		69,141		47,413
Effect of derecognition of previously recognized deferred tax assets		135		157		—
Effect of use of investment deduction		(512)		(370)		—
Effect of use of IID		—		—		(141,435)
Total explanations	€	33,173	€	78,670	€	(44,097)

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Income/loss (-) per share (Tables)

12 Months Ended

Dec. 31, 2021

Income/loss (-) per share

Schedule of income/loss per share

	Year ended December 31,
	2021		2020		2019
Income/loss (-) per share:
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(103,231)	€	(305,436)	€	149,845
Number of shares (thousands)
Weighted average number of shares for the purpose of basic income/loss (-) per share		65,500		65,075		57,614
Basic income/loss (-) per share (Euros)	€	(1.58)	€	(4.69)	€	2.60
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(103,231)	€	(305,436)	€	149,845
Number of shares (thousands)
Weighted average number of shares for the purpose of diluted income/loss (-) per share		65,500		65,075		57,614
Number of dilutive potential ordinary shares		—		—		2,498
Diluted income/loss (-) per share (Euros)	€	(1.58)	€	(4.69)	€	2.49

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Intangible assets (Tables)

12 Months Ended

Dec. 31, 2021

Intangible assets

Schedule of intangible assets

	Software & databases		Brands, licenses, patents & know-how		Contract costs		Total
	(Euro, in thousands)
Acquisition value
On January 1, 2019	€	9,111	€	2,719	€	—	€	11,832
Additions		5,463		2,453		15,384		23,300
Sales and disposals		(64)						(64)
Translation differences		31						31
On December 31, 2019		14,541		5,172		15,384		35,099
Additions		9,494		39,299				48,793
Sales and disposals		(17)						(17)
Reclassifications to assets held for sale		(159)		(38)				(197)
Translation differences		(143)		(1)				(144)
On December 31, 2020		23,717		44,432		15,384		83,534
Additions		2,423		1,250				3,673
Sales and disposals		(1,643)		(5,753)				(7,396)
Translation differences		57						57
On December 31, 2021	€	24,554	€	39,929	€	15,384	€	79,868
Amortization and impairment
On January 1, 2019	€	7,250	€	949	€	—	€	8,200
Amortization		816		678		512		2,006
Sales and disposals		(63)						(63)
Translation differences		31						31
On December 31, 2019		8,034		1,626		512		10,173
Amortization		2,303		2,289		1,538		6,130
Sales and disposals		(17)						(17)
Reclassifications to assets held for sale		(143)		(33)				(176)
Translation differences		(142)						(142)
On December 31, 2020		10,034		3,883		2,050		15,968
Amortization		3,529		2,053		1,538		7,120
Impairment				4,016				4,016
Sales and disposals		(1,643)		(5,753)				(7,396)
Translation differences		57						57
On December 31, 2021	€	11,977	€	4,199	€	3,588	€	19,765
Carrying amount
On December 31, 2019	€	6,507	€	3,546	€	14,872	€	24,927
On December 31, 2020	€	13,683	€	40,549	€	13,334	€	67,565
On December 31, 2021	€	12,577	€	35,730	€	11,796	€	60,103

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Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, plant and equipment

Schedule of property, plant and equipment - Fully owned

FULLY OWNED	Land & leasehold improvements		Installation & machinery		Furniture, fixtures & vehicles		Other tangible assets		Total
	(Euro, in thousands)
Acquisition value
On January 1 , 2019	€	5,011	€	38,031	€	3,452	€	4,827	€	51,321
Additions		273		6,382		649		15,076		22,380
Sales and disposals				(1,521)		(97)				(1,618)
Reclassifications				1,792		3		(1,795)		—
Reclassifications to right of use								(251)		(251)
Translation differences				(30)		22				(8)
On December 31, 2019		5,284		44,655		4,028		17,856		71,823
Additions		885		3,737		1,824		32,218		38,664
Sales and disposals		(51)		(1,096)		(81)				(1,228)
Reclassifications		10,625		(623)		2,084		(12,086)		—
Reclassifications to assets held for sale		(2)		(8,938)		(484)		(686)		(10,110)
Translation differences		(2)		(127)		(19)		(30)		(178)
On December 31, 2020		16,739		37,607		7,352		37,273		98,972
Additions		1,924		4,453		434		46,028		52,839
Sales and disposals				(1,001)		(1,177)		(9,316)		(11,494)
Reclassifications		7,273		5,210		1,175		(13,658)		—
Translation differences		195		1		45		(3)		238
On December 31, 2021	€	26,131	€	46,270	€	7,829	€	60,324	€	140,555
Depreciations and impairment
On January 1 , 2019	€	2,686	€	23,403	€	1,819	€	275	€	28,184
Depreciation		394		4,018		399		7		4,818
Sales and disposals				(1,521)		(99)				(1,620)
Reclassifications to right of use								(251)		(251)
Translation differences				(15)						(15)
On December 31, 2019		3,080		25,885		2,119		31		31,117
Depreciation		654		3,587		1,418		7		5,666
Sales and disposals		(51)		(1,058)		(77)				(1,186)
Reclassifications		46		(1,675)		1,629				—
Reclassifications to assets held for sale				(4,327)		(448)		(39)		(4,814)
Translation differences		(1)		(61)		(13)				(75)
On December 31, 2020		3,728		22,350		4,628		—		30,708
Depreciation		1,749		3,398		1,113				6,260
Impairment								9,316		9,316
Sales and disposals				(1,000)		(1,178)		(9,316)		(11,494)
Translation differences		28		1		18				47
On December 31, 2021	€	5,505	€	24,749	€	4,582	€	—	€	34,837
Carrying amount
On December 31, 2019	€	2,204	€	18,770	€	1,909	€	17,825	€	40,707
On December 31, 2020	€	13,011	€	15,257	€	2,724	€	37,273	€	68,264
On December 31, 2021	€	20,626	€	21,521	€	3,247	€	60,324	€	105,718

Schedule of property, plant and equipment - Right of use

RIGHT-OF-USE	Land & building ​		Installation & machinery		Furniture, fixtures & vehicles		Total
	(Euro, in thousands)
Acquisition value
On January 1, 2019	€	24,056	€	219	€	2,130	€	26,406
Additions		3,270		84		1,176		4,530
Reclassifications to right of use				251				251
Translation differences		38						38
On December 31, 2019		27,364		554		3,307		31,225
Additions		18,341		186		2,932		21,459
Sales and disposals				(6)		(161)		(167)
Reclassifications to assets held for sale		(5,940)				(263)		(6,202)
Translation differences		(88)				(3)		(90)
On December 31, 2020		39,678		734		5,812		46,225
Additions		1,722		110		5,092		6,924
Sales and disposals		(4,160)		(251)		(722)		(5,133)
Translation differences		221				2		223
On December 31, 2021	€	37,461	€	593	€	10,184	€	48,239
Depreciations and impairment
On January 1, 2019	€	—	€	—	€	—	€	—
Depreciation		4,666		91		867		5,624
Reclassifications to right of use				251				251
Translation differences		4						4
On December 31, 2019		4,670		342		867		5,879
Depreciation		5,350		128		1,405		6,883
Sales and disposals				(6)		(161)		(167)
Reclassifications to assets held for sale		(1,334)				(115)		(1,448)
Translation differences		(36)				(1)		(36)
On December 31, 2020		8,651		464		1,995		11,111
Depreciation		5,466		161		2,296		7,923
Sales and disposals		(1,696)		(251)		(722)		(2,669)
Translation differences		79						79
On December 31, 2021	€	12,500	€	374	€	3,569	€	16,444
Carrying amount
On December 31, 2019	€	22,694	€	212	€	2,440	€	25,345
On December 31, 2020	€	31,027	€	270	€	3,817	€	35,113
On December 31, 2021	€	24,961	€	219	€	6,615	€	31,794

	December 31,
		2021		2020		2019
	(Euro, in thousands)
Carrying amount
Property, plant and equipment fully owned	€	105,718	€	68,264	€	40,707
Right-of-use		31,794		35,113		25,345
Total property, plant and equipment	€	137,512	€	103,378	€	66,052

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Other non-current assets (Tables)

12 Months Ended

Dec. 31, 2021

Other non-current assets

Schedule of other non-current assets

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current restricted cash	€	1,425	€	1,482	€	1,418
Financial assets held at fair value through profit or loss		—		8,951		11,275
Other non-current assets		1,048		910		1,399
Total other non-current assets	€	2,473	€	11,343	€	14,091

Schedule of financial assets held at fair value through profit or loss

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Costs at January 1,	€	3,910	€	4,736	€	4,818
Acquisitions of the year		12		1,994		—
Disposals of the year		(1,928)		(2,820)		(82)
Costs at December 31,		1,994		3,910		4,736
Fair value adjustment at January 1,		5,042		6,539		1,182
Cancellation of fair value adjustment following disposal		(2,116)		(3,894)		2
Fair value adjustment of the year		(4,920)		2,397		5,355
Fair value adjustment at December 31,		(1,994)		5,042		6,539
Net book value at December 31,	€	—	€	8,951	€	11,275

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Research and Development incentives receivables (Tables)

12 Months Ended

Dec. 31, 2021

Research and Development incentives receivables

Schedule of the classifications of R&D incentives receivables

		December 31,
	2021		2020		2019
		(Euro, in thousands)
Non-current R&D incentives receivables	€	127,186	€	111,624	€	93,407
Current R&D incentives receivables		16,827		24,104		21,949
Total R&D incentives receivables	€	144,013	€	135,728	€	115,356

Schedule of maturities of non-current R&D incentives receivables

	December 31, 2021 Maturity date
	2023		2024		2025		2026		2027-2031		Total
	(Euro, in thousands)
French non-current R&D incentives receivables - discounted value	€	11,911		11,713		11,489		—		—	€	35,113
Belgian non-current R&D incentives receivables - discounted value		9,621		12,258		14,895		16,705		38,594		92,073
Total non-current R&D incentives receivables - discounted value	€	21,532	€	23,971		26,384		16,705		38,594	€	127,186

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Inventories (Tables)

12 Months Ended

Dec. 31, 2021

Inventories

Schedule of inventories

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Raw materials	€	14,351
Semi-finished products		1,376
Finished products purchased for resale		4,842	€	36
Total inventories	€	20,569	€	36	€	—

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Trade and other receivables and other current assets (Tables)

12 Months Ended

Dec. 31, 2021

Trade and other receivables and other current assets

Schedule of trade and other receivables and other current assets

		December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current trade receivables		—	€	50,000		—
Trade receivables	€	91,786		134,632	€	39,603
Prepayments		202		219		292
Other receivables		19,349		13,568		14,114
Trade and other receivables		111,337		148,418		54,009
Consumables inventory		—		319		255
Accrued income		639		1,096		4,443
Deferred charges		9,306		10,502		4,439
Other current assets		9,945		11,917		9,138
Total trade and other receivables & other current assets	€	121,282	€	210,335	€	63,147

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Cash and cash equivalents (Tables)

12 Months Ended

Dec. 31, 2021

Cash and cash equivalents

Schedule of cash and cash equivalents

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Cash at banks	€	1,225,860	€	1,239,993	€	907,939
Term deposits		1,007,508		895,194		953,677
Cash and cash equivalents from continuing operations		2,233,368		2,135,187		1,861,616
Cash and cash equivalents included in assets classified as held for sale		—		7,884		—
Total cash and cash equivalents	€	2,233,368	€	2,143,071	€	1,861,616

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Share capital (Tables)

12 Months Ended

Dec. 31, 2021

Share capital

Schedule of reconciliation of share capital

	2021		2020		2019
	(Euro, in thousands)
On January 1	€	291,312	€	287,282	€	236,540
Share capital increase		763		4,031		55,189
Costs of capital increase		—		—		(4,447)
Share capital on December 31,	€	292,075	€	291,312	€	287,282
Aggregate share capital	€	354,582	€	353,819	€	349,789
Costs of capital increase (accumulated)		(62,507)		(62,507)		(62,507)
Share capital on December 31,	€	292,075	€	291,312	€	287,282

Schedule of history of the share capital

Date	Share capital increase new shares (in thousands €)		Share capital increase due to exercise subscription rights (in thousands €)		Number of shares issued (in thousands of shares)	Aggregate number of shares after transaction (in thousands of shares)	Aggregate share capital after transaction (in thousands €)
January 1, 2019						54,466	€	294,600
March 20, 2019				808	149
June 20, 2019				1,127	208
August 23, 2019		36,945			6,829
September 19, 2019				1,632	302
November 6, 2019				14,162	2,618
November 25, 2019				515	95
December 31, 2019						64,667		349,789
March 17, 2020				824	152
May 28, 2020				2,356	436
September 19, 2020				467	86
December 4, 2020				384	71
December 31, 2020						65,412		353,819
March 19, 2021				540	100
June 7, 2021				59	11
September 20, 2021				41	8
December 3, 2021				123	23
December 31, 2021						65,553	€	354,582

Summary of capital increases

(Euro, in thousands, except share data)	Number of shares		Share capital		Share premium			Share capital and share premium	Average exercise price subscription right	Closing share price on date of capital increase
									( in Euro/ subscription right)	( in Euro/ share)
On January 1, 2019		54,465,421	€	236,540	€	1,277,780	€	1,514,320
March 20, 2019 : exercise of subscription rights		149,370		808		2,673		3,481	23.30	90.32
June 20, 2019 : exercise of subscription rights		208,310		1,127		3,198		4,325	20.76	113.55
August 23, 2019 : share subscription by Gilead
Ordinary shares (fully paid)		6,828,985		36,945		923,142		960,087		148.90
Derecognition of financial liability from share subscription agreement						56,749		56,749
Underwriter discounts and offering expenses (paid)				(4,447)				(4,447)
Total share subscription by Gilead		6,828,985		32,498		979,891		1,012,389
September 19, 2019 : exercise of subscription rights		301,745		1,632		5,043		6,675	22.12	145.25
November 6, 2019 : exercise of warrant A by Gilead
Exercise of warrant A		2,617,791		14,162		353,873		368,035
Derecognition of financial liability related to warrant A						78,953		78,953
Total exercise of warrant A by Gilead		2,617,791		14,162		432,826		446,988	140.59	170.75
November 25, 2019 : exercise of subscription rights		95,180		515		2,172		2,687	28.23	172.95
On December 31, 2019		64,666,802		287,282		2,703,583		2,990,865
March 17, 2020 : exercise of subscription rights		152,220		824		4,531		5,355	35.18	141.40
May 28, 2020 : exercise of subscription rights		435,540		2,356		15,558		17,914	41.13	186.60
September 18, 2020 : exercise of subscription rights		86,280		467		1,936		2,403	27.85	117.70
December 4, 2020 : exercise of subscription rights		70,925		384		2,232		2,616	36.88	100.30
On December 31, 2020		65,411,767		291,312		2,727,840		3,019,153
March 19, 2021 : exercise of subscription rights		99,814		540		1,718		2,258	22.62	68.48
June 7, 2021 : exercise of subscription rights		10,940		59		266		325	29.73	61.78
September 20, 2021 : exercise of subscription rights		7,600		41		111		152	19.97	46.93
December 3, 2021 : exercise of subscription rights		22,600		123		456		579	25.61	41.72
On December 31, 2021		65,552,721	€	292,075	€	2,730,391	€	3,022,467

Summary of other information

	Ordinary shares		Total
Par value of shares (€)		5.41		5.41

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Deferred tax (Tables)

12 Months Ended

Dec. 31, 2021

Deferred tax

Schedule of deferred tax

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Recognized deferred tax assets and liabilities
Assets	€	4,032	€	4,475	€	4,205
Liabilities	€	—	€	—	€	—
Deferred tax assets unrecognized	€	408,892	€	365,639	€	289,833
Deferred taxes in the consolidated statement of operations	€	(404)	€	(157)	€	1,537
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)		1,411		581		1,537
Deferred tax expenses relating to temporary differences		(629)		(44)		—
Deferred tax expenses relating to use of previously recognized deferred tax assets		(1,185)		(695)		—

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Lease liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Lease liabilities.

Schedule of lease liabilities

	December 31,						December 31,
	2021		2020		2019		2021		2020		2019
		(Euro, in thousands)						(Euro, in thousands)
		Lease payments						Present value of lease payments
Lease liabilities
Within one year	€	7,557	€	6,772	€	6,189	€	7,204	€	6,401	€	5,826
In the second to fifth years inclusive		18,873		20,399		16,320		18,381		19,833		15,783
After five years		1,291		3,214		3,844		1,274		3,201		3,775
	€	27,720	€	30,385	€	26,353	€	26,859	€	29,436	€	25,384
Less future finance charges		861		949		969
Present value of lease liabilities	€	26,859	€	29,436	€	25,384
Less amount due for settlement within 12 months								7,204		6,401		5,826
Amount due for settlement after 12 months							€	19,655	€	23,035	€	19,558

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Trade and other liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Trade and other liabilities

Schedule of trade and other liabilities

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Trade and other liabilities	€	134,304	€	171,316	€	142,510
Other non-current liabilities		7,135		8,096		6,989
Accrued charges		3,114		1,070		923
Total trade and other liabilities	€	144,553	€	180,482	€	150,422

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Deferred income (Tables)

12 Months Ended

Dec. 31, 2021

Deferred income

Schedule of movement in the non-current and current deferred income

		Total		Gilead collaboration agreement for filgotinib		Gilead collaboration agreement for ziritaxestat		Gilead collaboration agreement for drug discovery platform (2)		AbbVie collaboration agreement for CF		Deferred income related to contracts in our fee-for-service segment		Other deferred income (grants)
		(Euro, in thousands)
On December 31, 2018	€	149,801	€	145,798	€	—	€	—	€	3,224	€	471	€	308
Upfront received and impact of initial valuation of share subscription		3,655,416		641,663		666,967		2,346,787
Milestones received		49,727		27,317						22,410
Significant financing component (3)		6,900		6,900
Revenue recognition of upfront		(1,009,663)		(260,207)		(666,967)		(80,918)		(1,570)
Revenue recognition of milestones		(51,156)		(27,092)						(24,064)
Catch-up effect on closing date (1)		245,883		245,883
Other movements		(46,262)						(45,856)				(109)		(297)
On December 31, 2019		3,000,646		780,261		—		2,220,013		—		362		10
Upfront received		160,000		160,000
Milestones received		90,192		90,192
Significant financing component (3)		16,278		16,278
Revenue recognition of upfront		(411,417)		(181,816)				(229,601)
Revenue recognition of milestones		(46,261)		(46,261)
Other movements		(305)										(362)		57
On December 31, 2020		2,809,133		818,654		—		1,990,412		—		—		67
Upfront received		12,643		12,643
Significant financing component (3)		9,289		9,289
Revenue recognition of upfront		(433,884)		(203,301)				(230,582)
Revenue recognition of milestones		(32,408)		(32,408)
Other movements		(67)												(67)
On December 31, 2021	€	2,364,701	€	604,875	€	—	€	1,759,828	€	—	€	—	€	—

(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended December 31, 2019 included a negative catch-up effect resulting from the decrease in the percentage of completion applied to previously received upfront and milestones for that program.

(2) The upfront received and the outstanding balance on December 31, 2021 and December 31, 2020 comprise the issuance liabilities for the warrants and the upfront payment allocated to the drug discovery platform. Other movements in 2019 include the derecognition of warrant issuance liabilities through the share premium account.

(3) With regard to the additional consideration received for the extended cost sharing for filgotinib, we assume the existence of a sigificant financing component reflecting the time value of money on the estimated recognition period

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Discontinued operations (Tables)

12 Months Ended

Dec. 31, 2021

Discontinued operations

Schedule of financial statements in relation to the discontinued operations

Consideration received

		(Euro, in thousands)
Cash received	€	37,080
Total cash received	€	37,080

Analysis of assets and liabilities over which control was lost

	January 4, 2021
		(Euro, in thousands)
Intangible assets	€	21
Property, plant and equipment		10,050
Other non-current assets		160
Trade and other receivables		4,428
Cash and cash equivalents		7,884
Other current assets		863
Total assets		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		4,479
Current lease liabilities		727
Income tax payable		356
Total liabilities		9,747
Net assets disposed of	€	13,658

Gain on disposal of Fidelta

		(Euro, in thousands)
Cash received	€	37,080
Net assets disposed of		(13,658)
Effect of cumulative translation adjustment reclassified from equity on loss of control		(731)
Costs associated to the sale		(500)
Gain on disposal	€	22,191

Net cash proceeds from the disposal of Fidelta

		(Euro, in thousands)
Cash received	€	37,080
Less: cash and cash equivalents balances disposed of		(7,884)
Total consideration received, net of cash disposed of		29,196
Costs associated to the sale		(500)
Cash in from disposal of Fidelta, net of cash disposed of	€	28,696

RESULT FROM DISCONTINUED OPERATIONS

	Year ended December 31,
	2021		2020			2019
		(Euro, in thousands, except share and per share data)
Fee-for-service revenues	€	—	€	16,140	€	10,084
Total revenues		—		16,140		10,084
Gain on disposal of subsidiaries		22,191		—		—
Research and development expenses		—		(7,685)		(7,229)
General and administrative expenses		—		(2,000)		(1,319)
Other income		—		—		8
Operating income		22,191		6,455		1,544
Other financial income		—		179		93
Other financial expenses		—		(176)		(102)
Income before tax		22,191		6,458		1,535
Income taxes		—		(893)		(379)
Net income	€	22,191	€	5,565	€	1,156
Basic income per share from discontinued operations	€	0.34	€	0.09	€	0.02
Diluted income per share from discontinued operations	€	0.34	€	0.08	€	0.02
Weighted average number of shares (in thousands of shares)		65,500		65,075		57,614
Weighted average number of shares - Diluted (in thousands of shares)		65,831		67,572		60,112

CASH FLOW FROM DISCONTINUED OPERATIONS

		2021	2020		2019
		(Euro, in thousands)
Net cash flows generated from operating activities	€	—	€	7,173	€	2,911
Net cash flows generated from/used in (-) investing activities		28,696		(2,284)		(1,350)
Net cash flows used in financing activities		—		(664)		(709)
Net cash flow from discontinued operations	€	28,696	€	4,225	€	852

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Operating Cash Flow (Tables)

12 Months Ended

Dec. 31, 2021

Consolidated Statement of Cash Flows

Adjustments related to operating cash flow

	December 31,
	2021		2020		2019
	(Euro, in thousands)
Adjustment for non-cash transactions
Depreciation, amortization and impairment	€	34,636	€	18,682	€	12,448
Share-based compensation expenses		70,726		79,959		38,297
Decrease in retirement benefit obligations and provisions		(2,347)		(260)		(156)
Unrealized exchange losses/gains (-) and non-cash other financial result		(57,073)		105,055		11,169
Discounting effect of deferred income		9,289		16,278		6,900
Fair value re-measurement of share subscription agreement and warrants		(2,960)		(3,034)		181,644
Net change in (fair) value of current financial investments		(119)		15,900		3,081
Fair value adjustment financial assets held at fair value through profit or loss		4,919		(2,396)		(5,355)
Other non-cash expenses		648		539
Total adjustment for non-cash transactions	€	57,718	€	230,723	€	248,027
Adjustment for items to disclose separately under operating cash flow
Interest expense	€	11,656	€	9,424	€	1,302
Interest income		(2,853)		(7,476)		(9,247)
Tax expense		2,423		2,119		214
Total adjustment for items to disclose separately under operating cash flow	€	11,227	€	4,067	€	(7,731)
Adjustment for items to disclose under investing and financing cash flows
Gain on disposal of subsidiaries	€	(22,191)
Gain (-)/loss on sale of fixed assets			€	82	€	(2)
Realized exchange gain on sale of current financial investments		(6,645)
Interest income on current financial investments		(12)		(2,554)		(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	€	(28,847)	€	(2,472)	€	(5,061)
Change in working capital other than deferred income
Increase (-)/decrease in inventories	€	(21,168)	€	(100)	€	20
Increase (-)/ decrease in receivables		79,859		(177,155)		(67,263)
Increase/decrease (-) in liabilities		(35,353)		31,163		79,940
Total change in working capital other than deferred income	€	23,337	€	(146,092)	€	12,698

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Off-balance sheet arrangements (Tables)

12 Months Ended

Dec. 31, 2021

Off-balance sheet arrangements

Schedule of outstanding obligation for future lease and purchase commitments

On December 31, 2021, we had outstanding obligations for future purchase commitments, which become due as follows:

	Total		Less than 1 year			1 - 3 years		3 - 5 years		More than 5 years
					(Euro, in thousands)
Purchase commitments	€	369,937	€	212,065		€	105,947	€	46,426	€	5,499

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Share based payments (Tables)

12 Months Ended

Dec. 31, 2021

Subscription rights

Disclosure of terms and conditions of share-based payment arrangement [line items]

Schedule of summary of other equity instruments outstanding and exercisable per plan

				Outstanding					Outstanding	Exercisable
				per	Granted	Exercised	Forfeited	Expired	per	per
	Allocation	Expiry	Exercise	January 1,	during	during	during	during	December 31,	December 31,
Subscription right plan	date	date	price (€)	2021	year	year	year	year	2021	2021
2008	06/26/2008	06/25/2021	5.6	1,365		(1,365)			—	—
2013	05/16/2013	05/15/2021	19.38	55,664		(55,664)			—	—
2014	07/25/2014	07/24/2022	14.54	169,340		(41,800)			127,540	127,540
2015	04/30/2015	04/29/2023	28.75	219,473		(20,250)			199,223	199,223
2015 (B)	12/22/2015	12/21/2023	49.00	261,500		(5,000)			256,500	256,500
2015 RMV	12/22/2015	12/21/2023	49.00	40,000		(5,000)			35,000	35,000
2016	06/01/2016	05/31/2024	46.10	342,625		(11,875)			330,750	330,750
2016 RMV	06/01/2016	05/31/2024	46.10	69,000			—		69,000	69,000
2016 (B)	01/20/2017	01/19/2025	62.50	10,000			—		10,000	10,000
2017	05/17/2017	05/16/2025	80.57	595,500			—		595,500	595,500
2017 RMV	05/17/2017	05/16/2025	80.57	127,500			—		127,500	127,500
2018	04/19/2018	04/18/2026	79.88	1,083,245			(77,250)		1,005,995
2018 RMV	04/19/2018	04/18/2026	79.88	137,500			—		137,500
2019	04/10/2019	04/09/2027	95.11	1,477,840			(177,000)		1,300,840
2019 RMV	04/10/2019	04/09/2027	95.11	193,000			(2,500)		190,500
2020	04/17/2020	04/16/2028	168.42	1,906,034			(288,106)		1,617,928
2020RMV	04/17/2020	04/16/2028	168.42	239,525			(12,050)		227,475
2021BE	04/30/2021	04/29/2029	64.76		1,117,603		(33,567)		1,084,036
2021RMV	04/30/2021	04/29/2029	64.76		291,725		(9,175)		282,550
2021ROW	04/30/2021	04/29/2029	64.76		1,084,105		(102,105)		982,000
Total				6,929,111	2,493,433	(140,954)	(701,753)	—	8,579,837	1,751,013

Schedule of summary of other equity instruments outstanding and exercisable

		Weighted
		average
		exercise
	Subscription rights	price (Euro)
Outstanding on January 1, 2019	4,626,782	€	53.3
Exercisable on December 31, 2018	882,734		14.0
Granted during the period	1,699,690		95.1
Forfeited during the year	(30,750)		88.9
Exercised during the period	(754,605)		22.8
Expired during the year	—		—
Outstanding on December 31, 2019	5,541,117	€	70.1
Exercisable on December 31, 2019	1,139,682		30.2
Granted during the period	2,173,335		168.4
Forfeited during the year	(40,376)		144.8
Exercised during the period	(744,965)		38.0
Expired during the year	—		—
Outstanding on December 31, 2020	6,929,111	€	104.0
Exercisable on December 31, 2020	1,168,967		37.8
Granted during the period	2,493,433		64.8
Forfeited during the year	(701,753)		118.5
Exercised during the period	(140,954)		23.5
Expired during the year	—		—
Outstanding on December 31, 2021	8,579,837	€	92.7
Exercisable on December 31, 2021	1,751,013		56.6

Schedule of inputs into the valuation of the other equity instruments

	2021BE		2021 RMV/ROW		2020		2020 RMV			2019		2019 RMV
	April 30		April 30		April 17		April 17			April 19		April 19
Exercise Price (€)	€	64.76	€	64.76	€	168.42	€	168.42	€	95.11	€	95.11
Weighted average share price at acceptance date (€)	€	61.10	€	61.10	€	178.95	€	178.95	€	107.05	€	107.45
Weighted average fair value at the acceptance date (€)	€	22.72	€	20.68	€	86.45	€	85.79	€	40.04	€	40.05
Weighted average estimated volatility (%)		40.73		40.61		51.30		51.32		35.86		35.63
Weighted average expected life of the subscription rights (years)		6.43		5.36		6.00		6.00		6.02		6.00
Weighted average risk free rate (%)		(0.21)		(0.29)		(0.44)		(0.44)		(0.27)		(0.28)
Expected dividends		None		None		None		None		None		None

Schedule of summary of other equity instruments outstanding by category

	December 31,
	2021		2020		2019
	(in number of subscription rights)
Supervisory board members		157,560		157,560		222,600
Management board members (1)		1,965,000		2,101,874		2,171,874
Personnel		6,457,277		4,669,677		3,146,643
Total subscription rights outstanding		8,579,837		6,929,111		5,541,117

Restricted Stock Units (RSUs)

Disclosure of terms and conditions of share-based payment arrangement [line items]

Schedule of summary of other equity instruments outstanding and exercisable per plan

		Outstanding				Outstanding
		per	Granted	Forfeited	Paid in cash	per
	Offer	January 1,	during	during	during	December 31,
RSU plan	date	2021	year	year	year	2021
Plan 2019.I.	10/16/2019	33,000		(5,000)	—	28,000
Plan 2019.II.	10/16/2019	81,807		(12,034)	(27,269)	42,504
Plan 2019.III.	10/16/2019	71,072		(5,077)	(35,535)	30,460
Plan 2020.I.	06/05/2020	54,876		(10,925)	(11,424)	32,527
Plan 2020.II.	07/05/2020	72,841		(12,663)	(18,210)	41,968
Plan 2021.I.	05/05/2021		180,844	(26,228)	—	154,616
Plan 2021.II.	05/06/2021		43,328	(2,708)	—	40,620
Plan 2021.III.	06/03/2021		38,413	(238)	—	38,175
Plan 2021.IV.	09/24/2021		248,933	—	—	248,933
Total		313,596	511,518	(74,873)	(92,438)	657,803

Schedule of summary of other equity instruments outstanding by category

	December 31,
	2021		2020		2019
	(in number of RSUs)
Management board members		384,340		229,276		188,571
Personnel		273,463		84,320		24,576
Total outstanding RSUs		657,803		313,596		213,147

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Related party transactions (Tables)

12 Months Ended

Dec. 31, 2021

Related party transactions

Summary of outstanding balances

	Year ended December 31,
	2021		2020		2019
	(Euro, in thousands)
Non-current trade receivables			€	50,000
Trade and other receivables	€	88,246		132,825	€	31,645
Trade and other payables	€	11,580	€	27,074	€	39,100

Summary of remuneration package of the members of key management personnel

	Year ended December 31,
	2021		2020		2019
Remuneration of key management personnel:
Euro, in thousands (except for the number of subscription rights and RSUs)
Short-term benefits	€	4,264	€	3,102	€	14,129
Management board members as a group (1)
Gross salary		2,621		2,531		2,121
Employer social security on gross salary		—		—		61
Cash bonus (2)		1,172		433		1,230
Exceptional bonus		—		—		10,500
Employer social security on exceptional bonus		—		—		108
Other short-term benefits		471		138		109
Long-term benefits for management board members as a group (3)		—		—		1,874
Board fees and other short-term benefits for supervisory board members
Raj Parekh		220		220		90
Howard Rowe		120		125		55
Werner Cautreels (4)		—		—		15
Katrine Bosley (5)		65		115		45
Christine Mummery (4)		—		—		13
Mary Kerr		115		115		45
Peter Guenter (6)		115		115		30
Daniel O'Day (7)		—		—		—
Linda Higgins (7)		—		—		—
Elisabeth Svanberg (8)		115		78		—
Post-employment benefits (9)		399		392		323
Total benefits excluding subscription rights and RSUs	€	5,413	€	4,262	€	16,618
Severance package (10)		802		—		—
Number of subscription rights granted in the year
Management board members as a group (1) (12)		275,000		275,000		315,000
Onno van de Stolpe		85,000		85,000		100,000
Bart Filius		50,000		50,000		65,000
Andre Hoekema		30,000		30,000		50,000
Piet Wigerinck (11)		40,000		40,000		50,000
Walid Abi-Saab		40,000		40,000		50,000
Michele Manto (12)		30,000		30,000		40,000
Supervisory board members as a group		—		—		45,000
Raj Parekh		—		—		15,000
Howard Rowe		—		—		7,500
Katrine Bosley		—		—		7,500
Mary Kerr		—		—		7,500
Peter Guenter (6)		—		—		7,500
Daniel O'Day (7)		—		—		—
Linda Higgins (7)		—		—		—
Elisabeth Svanberg (8)		—		—		—
Total number of subscription rights granted in the year (12)		275,000		275,000		360,000
Total cost of subscription rights granted in the year under IFRS 2	€	5,629	€	22,921	€	14,236
Number of RSUs granted in the year (13)
Onno van de Stolpe		63,830		18,317		57,528
Bart Filius		62,730		12,600		39,846
Andre Hoekema		51,433		832		19,922
Piet Wigerinck (11)		835		12,080		33,077
Walid Abi-Saab		44,038		12,080		33,077
Michele Manto (12)		31,694		5,920		5,121
Total number of RSUs granted in the year		254,560		61,829		188,571

(1) Mr. Manto was appointed as Chief Commercial Officer and member of the management board, effective as of January 1, 2020. As a result the management board consisted of six persons in 2020. Dr. Wigerinck was a member of the management board until November 30, 2021. His remuneration and benefits are included in the overview for the financial year 2021.

(2) This aggregate number also includes the 2021 cash bonus of Dr. Wigerinck, who was a member of the management board until November 30, 2021.

(3) Only management board members are granted long-term benefits. Pursuant to the Senior Management Bonus Scheme, these consist of the deferred part of the bonus from 3 years ago. For the financial year 2020 and 2021 the deferred part of the bonus was not paid out.

(4) Supervisory board member's mandate expired on April 30, 2019.

(5) Ms. Bosley waived her equity related remuneration for the financial year 2021.

(6) Mr. Guenter's supervisory board member's mandate began on April 30, 2019.

(7) Supervisory board member's mandate began on October 22, 2019.

(8) Supervisory board member's mandate began on April 28, 2020.

(9) Only management board members are granted post-employment benefits.

(10) Dr. Wigerinck's severance package excludes his 2021 bonus paid per December 2021 and includes a payment of €35,416.66 for December 2021 pursuant to a non-competition obligation. During the financial year 2022 these monthly payments pursuant to a non-competition obligation will continue until 30 November 2022, except if Galapagos waives this non-competition obligation.

(11) Management board member until November 30, 2021.

(12) Mr. Manto was appointed as Chief Commercial Officer and member of the management board, effective as of January 1, 2020. Hence Mr. Manto’s subscription rights grant for 2019 (40,000 subscription rights) is not included in the total number of subscription rights granted in the financial year 2019.

(13) This is the sum of the RSUs awarded during the respective financial year, excluding the RSUs representing the deferred portion of the bonus for 2019 in financial year 2019, for 2020 in financial year 2020 and for 2021 in financial year 2021 (each time to be granted in the following financial year). Only management board members were awarded RSUs.

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Consolidated companies as of December 31, 2021 (Tables)

12 Months Ended

Dec. 31, 2021

Consolidated companies as of December 31, 2021

Disclosure of voting rights in consolidated companies

		Year ended December 31,
		2021		2020	2019
Name of the subsidiary	Country	% voting right Galapagos NV (directly or indirectly through subsidiaries)	Change in % voting right previous period (2021 vs 2020)	% voting right Galapagos NV (directly or indirectly through subsidiaries)	% voting right Galapagos NV (directly or indirectly through subsidiaries)
BioFocus DPI AG (liquidated)	Switzerland	0%		0%	100%
Galapagos Biopharma Belgium BV	Belgium	100%		100%	100%
Galapagos Biopharma Netherlands B.V.	The Netherlands	100%		100%	100%
Galapagos Biopharma Spain S.L.U.	Spain	100%		100%	100%
Galapagos Biopharma Italy S.r.l.	Italy	100%		100%	100%
Galapagos Biopharma Germany GmbH	Germany	100%		100%	100%
Galapagos Biopharma Sweden AB	Sweden	100%	100%	0%	0%
Galapagos Biopharma Norway AS	Norway	100%	100%	0%	0%
Galapagos Biopharma Finland Oy	Finland	100%	100%	0%	0%
Galapagos Biopharma Denmark ApS	Denmark	100%	100%	0%	0%
Galapagos Biopharma Austria GmbH	Austria	100%	100%	0%	0%
Galapagos Biopharma Ireland Ltd	Ireland	100%	100%	0%	0%
Galapagos B.V.	The Netherlands	100%		100%	100%
Galapagos Biotech Ltd (formerly Inpharmatica Ltd.)	United Kingdom	100%		100%	100%
Galapagos GmbH	Switzerland	100%		100%	100%
Galapagos, Inc. (formerly Biofocus, Inc.)	United States	100%		100%	100%
Galapagos NV	Belgium	Parent company		Parent company	Parent company
Galapagos Real Estate Belgium BV (former Galapagos Real Estate 1 BV)	Belgium	100%		100%	100%
Galapagos Real Estate 2 BV	Belgium	0%		0%	100%
Galapagos Real Estate Netherlands B.V.	The Netherlands	100%		100%	100%
Galapagos SASU	France	100%		100%	100%
Fidelta d.o.o.	Croatia	0%	(100%)	100%	100%
Xenometrix, Inc. in liquidation	United States	100%		100%	100%

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Financial risk management (Tables)

12 Months Ended

Dec. 31, 2021

Financial risk management

Disclosure of categories of material financial assets and liabilities

	December 31,
	2021		2020		2019(*)
	(Euro, in thousands)
Financial assets held at fair value through profit or loss
Equity instruments	€	—	€	8,951	€	11,275
Current financial investments		1,317,460		1,571,858		3,919,216
Financial assets at amortized cost
Current financial investments		1,152,349		1,454,420		—
Cash and cash equivalents		2,233,368		2,135,187		1,861,616
Restricted cash (current and non-current)		1,425		1,482		1,418
Other non-current assets		1,048		907		1,399
Trade receivables		91,786		184,632		39,603
Total financial assets	€	4,797,436	€	5,357,438	€	5,834,526
Financial liabilities held at fair value through profit or loss
Current financial instruments	€	204	€	3,164	€	6,198
Financial liabilities at amortized cost
Trade liabilities		84,519		134,905		116,749
Lease liabilities		26,859		29,436		25,384
Total financial liabilities	€	111,582	€	167,505	€	148,331

Disclosure of aging balance of receivables

	December 31,
	2021		2020		2019
	(Euro, in thousands)
60 - 90 days	€	141	€	—	€	87
90 - 120 days		92		—		—
more than 120 days	€	113	€	—	€	—

Foreign exchange risk

Financial risk management

Disclosure of sensitivity of exchange rate risk

	December 31,
	2021		2020		2019
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(83,996)	€	(116,690)	€	(133,373)
Increase in Euros - GB Pounds		1,093		303		113
Increase in Euros - CH Francs		233		2,013		538
Increase in Euros - HR Kunas		—		—		650
Increase in U.S. Dollars - GB Pounds	€	—	€	—	€	(894)

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General information (Details) € in Thousands	Jan. 04, 2021 EUR (€)	Dec. 31, 2021 employee	Dec. 31, 2020 employee	Dec. 31, 2019 employee
Disclosure of analysis of single amount of discontinued operations [line items]
Number of employees related to continuing operations		1,309	1,304	1,003
Fidelta d.o.o. (fee-for-service segment)
Disclosure of analysis of single amount of discontinued operations [line items]
Total consideration | €	€ (37,080)
Fidelta d.o.o. (fee-for-service segment) | Fee-for-service business (held for sale)
Disclosure of analysis of single amount of discontinued operations [line items]
Number of employees			185

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Summary of significant transaction (Details) € / shares in Units, € in Thousands, $ in Millions									12 Months Ended
	Nov. 06, 2019 EUR (€)	Oct. 22, 2019 item € / shares	Aug. 23, 2019 EUR (€)	Aug. 23, 2019 USD ($)	Jul. 17, 2019	Jul. 14, 2019 USD ($)	Jul. 14, 2019 € / shares	Jul. 13, 2019	Dec. 31, 2021 EUR (€) € / shares	Dec. 31, 2020 EUR (€) item € / shares	Dec. 31, 2020 USD ($) item	Dec. 31, 2019 EUR (€) € / shares	Dec. 31, 2021 USD ($)	Aug. 23, 2019 USD ($)
Summary of significant transaction
Global research and development collaboration term						10 years
Upfront payment received			€ 3,569,800	$ 3,950.0
Equity investment received			€ 960,100											$ 1,100.0
Additional equity investment from warrant exercise | €									€ 3,314	€ 28,287		€ 17,167
Cost Share For Global Development Activities									50.00%				50.00%
Option rights period						10 years
Extension option rights period					3 years
Opt-in payments to be received for each program | $						$ 150.0
Average exercise price warrants | € / shares									€ 23.5	€ 38.0		€ 22.8
Filgotinib drug license
Summary of significant transaction
Development and regulatory milestones | $						295.0
Sales based milestone payment | $						600.0
Number of milestone payments achieved | item										2	2
Proceeds from milestone payments | $											$ 105.0
United States | GLPG 1972 License
Summary of significant transaction
Milestone fee on election of option to license | $						$ 250.0
Gilead
Summary of significant transaction
Number of directors represented as board members | item		2
Share price | € / shares							€ 140.59
Premium						20.00%
Volume of days						30 days
Percentage of stake	25.10%					22.04%		12.30%	25.49%
Restricting Gilead's ability to seek to acquire		10 years
Maximum share holding percentage		29.90%
Gilead | Filgotinib drug license
Summary of significant transaction
Upfront payments received related party transaction | €									€ 110,000
Cost Share For Global Development Activities									50.00%				50.00%
Amount receivable in relation to the collaboration | €										€ 160,000
Amounts Receivable Related Party Transactions Year Two | €									€ 50,000
Gilead | Filgotinib drug license | Original Agreement
Summary of significant transaction
Cost Share For Global Development Activities						25.00%	25.00%
Future global development cost sharing ratio before predetermined level						25.00%
Gilead | Filgotinib drug license | Group B activities [Member]
Summary of significant transaction
Cost Share For Global Development Activities									50.00%				50.00%
Minimum | Outside Europe
Summary of significant transaction
Tiered royalty Percentage deduction						20.00%
Minimum | Outside Europe | Filgotinib drug license
Summary of significant transaction
Tiered royalty Percentage deduction						20.00%
Minimum | Gilead
Summary of significant transaction
EGM Conducted period		57 months
Minimum | Gilead | Filgotinib drug license
Summary of significant transaction
Future global development cost sharing ratio before predetermined level									5000.00%
Minimum | Gilead | Europe | Filgotinib drug license
Summary of significant transaction
Percentage of future net sales from 2024, royalties as percentage of sales									8				8
Maximum | Outside Europe
Summary of significant transaction
Tiered royalty Percentage deduction						24.00%
Maximum | Outside Europe | Filgotinib drug license
Summary of significant transaction
Tiered royalty Percentage deduction						30.00%
Maximum | Gilead
Summary of significant transaction
Percentage of stake		29.90%
EGM Conducted period		59 months
Maximum | Gilead | Filgotinib drug license
Summary of significant transaction
Future global development cost sharing ratio before predetermined level									100.00%
Maximum | Gilead | Europe | Filgotinib drug license
Summary of significant transaction
Percentage of future net sales from 2024, royalties as percentage of sales									15				15
Warrant A [member] | Gilead
Summary of significant transaction
Additional equity investment from warrant exercise | €	€ 368,000
Warrant B
Summary of significant transaction
Decrease in value of warrant driven by decrease of share price and implied volatility | €									€ 2,400
Multiplier used to calculate exercise price per share		120.00%
Initial term of the warrant		5 years
Average exercise price warrants | € / shares		€ 140.59
Volume of days		30 days
DIVERSITY clinical study
Summary of significant transaction
Amount receivable in relation to the collaboration | $													$ 15.0
DIVERSITY clinical study | Gilead | Filgotinib drug license
Summary of significant transaction
Tiered royalty Percentage deduction									(30.00%)
DIVERSITY clinical study | Minimum | Gilead | Europe | Scenario
Summary of significant transaction
Royalties payable, percentage									5.6				5.6
DIVERSITY clinical study | Maximum | Gilead | Europe | Scenario
Summary of significant transaction
Royalties payable, percentage									10.5				10.5

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Significant accounting policies - Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2021
Software and databases | Minimum
Disclosure of detailed information about intangible assets
Useful lives	3 years
Software and databases | Maximum
Disclosure of detailed information about intangible assets
Useful lives	5 years
Brands, licenses, patents and know-how | Minimum
Disclosure of detailed information about intangible assets
Useful lives	5 years
Brands, licenses, patents and know-how | Maximum
Disclosure of detailed information about intangible assets
Useful lives	20 years

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Significant accounting policies - Property, Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Minimum | Installation and machinery
Disclosure of detailed information about property, plant and equipment
Useful lives	3 years
Minimum | Furniture, fixtures & vehicles
Disclosure of detailed information about property, plant and equipment
Useful lives	4 years
Minimum | Leasehold
Disclosure of detailed information about property, plant and equipment
Useful lives	3 years
Maximum | Installation and machinery
Disclosure of detailed information about property, plant and equipment
Useful lives	15 years
Maximum | Furniture, fixtures & vehicles
Disclosure of detailed information about property, plant and equipment
Useful lives	10 years
Maximum | Leasehold
Disclosure of detailed information about property, plant and equipment
Useful lives	10 years

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Significant accounting policies - Employee Benefits (Details)	12 Months Ended
	Dec. 31, 2021
Significant accounting policies
Percentage of bonus paid immediately around year-end, Senior Management Bonus Scheme	50.00%
Percentage of deferred bonus paid for three years, Senior Management Bonus Scheme	50.00%
Duration of deferred payment for remaining 50% of Senior Management Bonus	3 years
Share price below threshold in which the deferred bonus will be adjusted and the remainder will be forfeited	10.00%
Share price above threshold in which the deferred bonus will be forfeited	10.00%

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Significant accounting policies - Segment Reporting (Details) - segment	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Significant accounting policies
Operating and reportable segment	1	1

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Critical accounting judgments and key sources of estimation uncertainty - IFRS 15 - Revenue recognition Gilead (Details) € in Thousands	12 Months Ended
	Dec. 31, 2021 EUR (€) item	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)	Jul. 14, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Critical accounting estimates and judgments
Deferred income	€ 2,364,701	€ 2,809,133	€ 3,000,646		€ 149,801
Collaboration agreement for filgotinib
Critical accounting estimates and judgments
Deferred income	604,900
Gilead [member]
Critical accounting estimates and judgments
Deferred income	4,308,669	4,286,852	4,012,108
Gilead [member] | Collaboration agreement for filgotinib
Critical accounting estimates and judgments
Deferred income	€ 604,875	€ 818,654	€ 780,261		€ 145,798
Gilead [member] | Derivative financial instrument
Critical accounting estimates and judgments
Offsetting short term financial asset (derivative)				€ 85,600
Number of performance obligations exceeding one year | item	3
Upfront payments and milestone payments [Member] | Collaboration agreement for filgotinib
Critical accounting estimates and judgments
Revenue recognized	€ 235,700
Scenario | Collaboration agreement for filgotinib
Critical accounting estimates and judgments
Increase (decrease) in remaining cost to complete filgotinib performance obligation	5.00%
(Decrease) increase in revenue recognition and corresponding increase (decrease) in current and non-current deferred income	€ (16,700)
Scenario 2 | Collaboration agreement for filgotinib
Critical accounting estimates and judgments
Increase (decrease) in remaining cost to complete filgotinib performance obligation	(5.00%)
(Decrease) increase in revenue recognition and corresponding increase (decrease) in current and non-current deferred income	€ 17,500

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Segment information - Major customers (Details) € in Thousands	12 Months Ended
	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)
Disclosure of major customers [line items]
Product net sales	€ 14,753	€ 2
Collaboration revenues	470,093	478,051	€ 834,901
Revenue	484,846	478,053	834,901
Revenues by major customers
Disclosure of major customers [line items]
Collaboration revenues	€ 470,049	€ 477,978	€ 834,836
Percentage of entity's collaboration revenue	100	100	100
United States
Disclosure of major customers [line items]
Collaboration revenues	€ 467,978	€ 472,445	€ 793,873
United States | Gilead
Disclosure of major customers [line items]
Collaboration revenues	€ 467,978	€ 472,445	€ 793,873
Percentage of entity's collaboration revenue	100	99	95
North America and Europe | Gilead
Disclosure of major customers [line items]
Negative catch-up effect on closing date resulting from the decrease in the percentage of completion applied to previously received upfront and milestones	€ 245,900
Europe
Disclosure of major customers [line items]
Collaboration revenues	2,114	€ 5,605	€ 41,028
Europe | Gilead
Disclosure of major customers [line items]
Collaboration revenues	€ 2,071	€ 1,460	€ (4,570)
Percentage of entity's collaboration revenue	0	0	(1)
Europe | AbbVie [member]
Disclosure of major customers [line items]
Collaboration revenues		€ (52)	€ 26,356
Percentage of entity's collaboration revenue	0	0	3
Europe | Novartis
Disclosure of major customers [line items]
Collaboration revenues		€ 4,125	€ 19,177
Percentage of entity's collaboration revenue	0	1	2

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Segment information - Non-current assets by location (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of geographical areas [line items]
Non-current assets	€ 331,306	€ 348,384	€ 202,682
Property, Plant and Equipment and Intangible Assets
Disclosure of geographical areas [line items]
Non-current assets	197,615	170,943	90,979
Property, Plant and Equipment and Intangible Assets | Belgium
Disclosure of geographical areas [line items]
Non-current assets	98,295	113,524	57,007
Property, Plant and Equipment and Intangible Assets | France
Disclosure of geographical areas [line items]
Non-current assets	21,051	18,398	18,102
Property, Plant and Equipment and Intangible Assets | The Netherlands
Disclosure of geographical areas [line items]
Non-current assets	66,621	28,210	7,951
Property, Plant and Equipment and Intangible Assets | Croatia
Disclosure of geographical areas [line items]
Non-current assets			6,182
Property, Plant and Equipment and Intangible Assets | Switzerland
Disclosure of geographical areas [line items]
Non-current assets	7,181	7,668	1,057
Property, Plant and Equipment and Intangible Assets | Spain
Disclosure of geographical areas [line items]
Non-current assets	3,029	2,755
Property, Plant and Equipment and Intangible Assets | Other Countries
Disclosure of geographical areas [line items]
Non-current assets	€ 1,438	€ 388	€ 681

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Total revenues - Disaggregation of revenues (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of disaggregation of revenue from contracts with customers [line items]
Total collaboration revenues	€ 470,093	€ 478,051	€ 834,901
Revenue recognized	484,846	478,053	€ 834,901
Revenue from sale of goods	14,753	€ 2
Jyseleca [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue from sale of goods	€ 14,800

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Total revenues - Revenue by collaboration and by category of revenue (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of disaggregation of revenue from contracts with customers [line items]
Total net revenues	€ 484,846	€ 478,053	€ 834,901
Negative catch-up effect on closing date resulting from the decrease in the percentage of completion applied to previously received upfront and milestones			(245,883)
Product net sales	14,753	2
Gilead [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestone payments	194,363	194,363	104,171
Royalties	19,984	16,227
Collaboration revenues
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	433,884	411,417	812,058
Milestone payments	32,408	46,261	2,878
Reimbursement income		4,073	19,900
Total net revenues	470,093	478,051	834,901
Royalties	3,801	16,300	66
Collaboration revenues | Other segments
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties	43	72	66
Collaboration revenues | Gilead [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties	3,757	16,227
Gilead collaboration agreement for ziritaxestat | Gilead [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees			666,968
Collaboration agreement for filgotinib
Disclosure of disaggregation of revenue from contracts with customers [line items]
Negative catch-up effect on closing date resulting from the decrease in the percentage of completion applied to previously received upfront and milestones			245,900
Collaboration agreement for filgotinib | Gilead [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	203,301	181,816	62,602
Milestone payments	32,408	46,261	(21,187)
Negative catch-up effect on closing date resulting from the decrease in the percentage of completion applied to previously received upfront and milestones			(245,883)
Collaboration agreement for CF | AbbVie
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees			1,569
Milestone payments			24,065
Reimbursement income		(52)	723
Gilead collaboration agreement for drug discovery platform | Gilead [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	€ 230,582	229,601	80,918
Collaboration agreement for MOR106 | Novartis
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income		€ 4,125	€ 19,177

XML

Total revenues - Allocation of transaction price (Details) € in Thousands, $ in Millions		1 Months Ended	12 Months Ended
	Jul. 14, 2019 EUR (€)	Jul. 31, 2018 EUR (€)	Dec. 31, 2021 EUR (€) item	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)	Sep. 06, 2021 USD ($)	Dec. 15, 2020 EUR (€)	Dec. 31, 2018 EUR (€)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Cost share mechanism			50.00%
Deferred income			€ 2,364,701	€ 2,809,133	€ 3,000,646			€ 149,801
Global research and development collaboration term	10 years
Period over which to recognize the drug discovery platform revenue			10 years
Maximum extension period for specific program			3 years
Subsequent warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Deferred income			€ 2,400
Collaboration agreement for filgotinib
Disclosure of disaggregation of revenue from contracts with customers [line items]
Deferred income			€ 604,900
Filgotinib additional consideration
Disclosure of disaggregation of revenue from contracts with customers [line items]
Number of performance obligations exceeding one year | item			1
Subsequent warrant B [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Deferred income				7,900
Novartis
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront received		€ 95,000
Filgotinib Amendment December152020 Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront consideration				160,000
Total transaction price				160,000
Deferred income				160,000
Other Movements In 2020 Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved				90,192
Royalties				16,227
Total transaction price				106,419
Deferred income				114,744
Milestone payments				90,192
Other Movements In 2020 Member | Subsequent warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities				8,325
Other Movements In 2020 Member | Collaboration agreement for drug discovery platform
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations				8,325
Other Movements In 2021 [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties			€ 3,757
Total transaction price			3,757
Deferred income			9,174
Other Movements In 2021 [Member] | Subsequent warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities			5,417
Other Movements In 2021 [Member] | Collaboration agreement for drug discovery platform
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			5,417
Filgotinib Amendment December2021 Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront consideration			12,643
Total transaction price			12,643
Deferred income			12,643
Filgotinib Performance Obligation Member | Filgotinib Amendment December152020 Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations				160,000
Filgotinib Performance Obligation Member | Other Movements In 2020 Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations				106,419
Filgotinib Performance Obligation Member | Other Movements In 2021 [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			3,757
Filgotinib Performance Obligation Member | Filgotinib Amendment December2021 Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			12,643
Gilead [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront consideration			4,018,016	4,005,373	3,845,373
Milestones achieved			194,363	194,363	104,171
Royalties			19,984	16,227
Impact initial valuation of share subscription			124,604	124,604	124,604
Total transaction price			4,356,967	4,340,567	4,074,148
Deferred income			4,308,669	4,286,852	4,012,108
Milestone payments			194,363	194,363	104,171
Gilead [member] | Warrant A
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities			(43,311)	(43,311)	(43,311)
Gilead [member] | Initial Warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities			(2,545)	(2,545)	(2,545)
Gilead [member] | Subsequent warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities			(2,442)	(7,859)	(16,184)
Gilead [member] | Collaboration agreement for filgotinib
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved			32,408	46,261	(21,187)
Deferred income			604,875	818,654	780,261			€ 145,798
Milestone payments			32,408	46,261	(21,187)
Gilead [member] | Collaboration agreement for drug discovery platform
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			€ 2,298,489	2,293,072	2,284,747
Gilead [member] | Derivative financial instrument
Disclosure of disaggregation of revenue from contracts with customers [line items]
Number of performance obligations exceeding one year | item			3
Offsetting short term financial asset (derivative)	€ 85,600
Gilead [member] | Filgotinib Amendment December152020 Member | Filgotinib additional consideration
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties				16,200
Gilead [member] | Filgotinib Amendment December2021 Member | Filgotinib additional consideration
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties			€ 3,800
Gilead [member] | Filgotinib Performance Obligation Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			1,343,214	1,326,814	1,060,395
Estimated significant financing component			57,300	55,300	44,500
Gilead [member] | Filgotinib Performance Obligation Member | Filgotinib additional consideration
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations						$ 15	€ 160,000
Gilead [member] | Gilead collaboration agreement for ziritaxestat
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			€ 666,967	€ 666,967	€ 666,967
Original Agreement | Gilead [member] | Filgotinib Performance Obligation Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Cost share mechanism	25.00%
Minimum | Gilead [member] | Filgotinib Performance Obligation Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Cost share mechanism			5000.00%
Maximum | Gilead [member] | Filgotinib Performance Obligation Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Cost share mechanism			100.00%

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Total revenues - Schedule of the revenue recognition of upfront payments, license fees and milestone payments and the impact of the adoption of IFRS 15 (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of disaggregation of revenue from contracts with customers [line items]
Total collaboration revenues	€ 470,093	€ 478,051	€ 834,901
Other Movements In 2020 Member
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestone payments		90,192
Royalties		16,227
Gilead [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestone payments	194,363	194,363	104,171
Royalties	19,984	16,227
Gilead [member] | Collaboration agreement for filgotinib
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestone payments	32,408	46,261	(21,187)
Gilead [member] | Filgotinib Amendment December152020 Member | Filgotinib additional consideration
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties		16,200
Gilead [member] | Filgotinib Amendment December2021 Member | Filgotinib additional consideration
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties	€ 3,800
Novartis | Collaboration agreement for MOR106
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income		€ 4,125	€ 19,177

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Operating costs and other operating income - Summary of research and development expenditure (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income and expenses
Personnel costs	€ (165,239)	€ (161,509)	€ (118,875)
Subcontracting	(251,085)	(301,841)	(255,725)
Disposables and lab fees and premise costs	(24,025)	(22,349)	(19,573)
Depreciation	(17,518)	(11,707)	(9,330)
Professional fees	(15,862)	(12,692)	(1,834)
Other operating expenses	(17,978)	(13,570)	(14,754)
Total R&D expenses	€ (491,707)	€ (523,667)	€ (420,090)

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Operating costs and other operating income - Summary of R&D expenditure by program (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating costs
Total R&D expenditure	€ (491,707)	€ (523,667)	€ (420,090)
Filgotinib program
Operating costs
Total R&D expenditure	(171,204)	(126,879)	(100,032)
Ziritaxestat program
Operating costs
Total R&D expenditure	(26,725)	(55,902)	(75,951)
OA program with GLPG1972
Operating costs
Total R&D expenditure	(2,285)	(22,966)	(19,958)
Toledo Program
Operating costs
Total R&D expenditure	(91,957)	(87,107)	(47,204)
TYK2 program on GLPG3667
Operating costs
Total R&D expenditure	(27,141)	(20,199)	(10,728)
AtD program with MOR106
Operating costs
Total R&D expenditure	(112)	(7,618)	(24,051)
Other programs
Operating costs
Total R&D expenditure	€ (172,284)	€ (202,996)	€ (142,166)

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Operating costs and other operating income - Summary of general and administrative expenses (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income and expenses
Personnel costs and directors fees	€ (71,190)	€ (70,110)	€ (51,204)
Depreciation	(16,621)	(5,147)	(1,421)
Legal and professional fees	(26,072)	(25,592)	(11,568)
Other operating expenses	(27,016)	(17,908)	(8,190)
Total general and administrative expenses	€ (140,899)	€ (118,757)	€ (72,382)

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Operating costs and other operating income - Summary of sales and marketing expenses (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income and expenses
Personnel costs	€ (59,102)	€ (31,727)	€ (7,558)
Depreciation	(504)	(140)	(61)
External outsourcing costs	(62,321)	(31,885)	(7,558)
Sales and marketing expenses recharged to/from (-) Gilead	59,699	4,711	(8,164)
Professional fees	(532)	(3,420)	(459)
Other operating expenses	(7,196)	(4,007)	(777)
Total sales and marketing expenses	€ (69,956)	€ (66,468)	€ (24,577)

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Operating costs and other operating income - Other Income (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income and expenses
Grant income	€ 7,334	€ 5,452	€ 6,549
Other income from mainly R&D incentives	44,888	45,951	43,923
Other income	1,526	804	425
Total other income	€ 53,749	€ 52,207	€ 50,896

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Staff costs (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Staff costs
Wages and salaries	€ (175,167)	€ (139,681)	€ (113,660)
Social security costs	(29,934)	(26,471)	(14,566)
Pension costs	(8,467)	(7,337)	(4,715)
Costs related to subscription right plans	(70,726)	(79,959)	(38,297)
Other personnel costs	(11,237)	(9,897)	(6,399)
Total personnel costs	(295,531)	(263,345)	(177,637)
Costs for warrants granted	€ 70,726	€ 79,959	€ 38,297

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Fair value re-measurement of share subscription agreement and warrants granted to Gilead - Financial assets (Details) - EUR (€) € in Thousands				2 Months Ended		12 Months Ended
	Nov. 06, 2019	Nov. 06, 2019	Aug. 23, 2019	Dec. 31, 2019	Aug. 31, 2019	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2021	Jan. 01, 2020	Oct. 22, 2019	Jul. 14, 2019
Disclosure of fair value measurement of assets [line items]
Upfront payments							€ 12,643		€ 160,000
Share subscription increase										€ 960,087
Total financial assets				€ 5,834,526		€ 4,797,436	4,797,436	€ 5,357,438	5,357,438	5,834,526
Financial liabilities				148,331		111,582	111,582	167,505	167,505	148,331
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead							2,960		3,034	(181,644)
Derivative financial instrument | Gilead [member] | Level 3
Disclosure of fair value measurement of assets [line items]
Total financial assets				0						0				€ 85,601
Financial liabilities			€ 56,749
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead					€ (142,350)
Derecognition of the financial asset through the share premium account related to the share subscription agreement with Gilead			€ 56,749
Fair value re-measurement of the share subscription agreement
Disclosure of fair value measurement of assets [line items]
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead										(142,350)
Fair value re-measurement of the financial instrument related to the issuance of warrant A
Disclosure of fair value measurement of assets [line items]
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead										(35,642)
Fair value re-measurement of the financial instrument related to the issuance of warrant A | Gilead [member] | Warrant A [member]
Disclosure of fair value measurement of assets [line items]
Financial liabilities				0						0			€ 43,311
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead		€ (35,642)
Derecognition of the financial asset through the share premium account related to the share subscription agreement with Gilead	€ 78,953
Fair value re-measurement of the financial instrument related to the issuance of initial warrant B
Disclosure of fair value measurement of assets [line items]
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead							2,960		3,034	(3,653)
Fair value re-measurement of the financial instrument related to the issuance of initial warrant B | Gilead [member] | Warrant B
Disclosure of fair value measurement of assets [line items]
Financial liabilities				6,198		204	€ 204	3,164	€ 3,164	€ 6,198	€ 3,164	€ 6,198	€ (2,545)
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead				€ (3,653)		€ 2,960		€ 3,034

XML

Other financial income / expenses (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other financial income:
Interest on bank deposit	€ 2,865	€ 10,030	€ 14,305
Effect of discounting long term R&D incentives receivables	93	93	93
Currency exchange gain	60,727	4,697	775
Fair value gain on financial assets held at fair value through profit or loss		2,397	5,355
Fair value gain on current financial investments	6,763		611
Gain upon sale of financial assets held at fair value through profit or loss			2
Other finance income	100	1,450	248
Total other financial income	70,548	18,667	21,389
Other financial expenses:
Interest expenses	(11,656)	(9,389)	(1,268)
Effect of discounting long term deferred income	(9,289)	(16,278)	(6,900)
Currency exchange loss	(4,235)	(110,416)	(47,720)
Loss upon sale of financial assets held at fair value through profit or loss		(88)
Fair value loss on current financial investments		(15,901)	(3,700)
Fair value loss on financial assets held at fair value through profit or loss	(4,919)
Other finance charges	(812)	(773)	(380)
Total other financial expense	(30,911)	(152,844)	(59,968)
Total other net financial expense (-)/ income	€ 39,637	€ (134,177)	€ (38,579)

XML

Income Taxes - Summary of income tax recognized (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes
Current tax	€ (2,020)	€ (1,069)	€ (1,372)
Deferred tax	(404)	(157)	1,537
Total taxes	€ (2,423)	€ (1,226)	€ 165

XML

Income Taxes - Schedule of tax liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes
Current tax payable	€ 1,782	€ 1,248	€ 2,037
Total tax liabilities	€ 1,782	€ 1,248	€ 2,037

XML

Income Taxes - Summary of income tax reconciliation (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes
Income/ loss (-) before tax	€ (122,999)	€ (309,775)	€ 148,525
Income tax debit / credit (-), calculated using the Belgian statutory tax rate on the accounting income / loss (-) before tax (theoretical)	(30,750)	(77,444)	43,934
Tax expenses / income (-) in statement of operations (effective)	2,423	1,226	(165)
Difference in tax expense / income to explain	33,173	78,670	(44,097)
Effect of tax rates in other jurisdictions	(582)	184	960
Effect of non taxable revenues	(9,413)	(10,196)	(13,079)
Effect of share based payment expenses without tax impact	17,682	19,990	10,318
Effect of expenses/income (-) not subject to tax	(907)	(639)	53,394
Effect of non tax deductible expenses	3,812	1,053	724
Effect of recognition of previously non recognized deferred tax assets	(1,411)	(475)	(2,286)
Effect of tax losses (utilized) reversed	(404)	(150)	(136)
Effect of under or over provisions in prior periods	(840)	(25)	30
Effect of non recognition of deferred tax assets	25,613	69,141	47,413
Effect of derecognition of previously recognized deferred tax assets	135	157
Effect of use of investment deduction	(512)	(370)
Effect of use of IID			(141,435)
Total explanations	€ 33,173	€ 78,670	€ (44,097)

XML

Income Taxes - Narrative (Details)		12 Months Ended
	Jan. 01, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Effect of change in effective tax rate due to use of IID	3.75%
Belgium
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Applicable tax rate		25.00%	25.00%	29.58%

XML

Income/loss (-) per share (Details) - EUR (€) € / shares in Units, € in Thousands, shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income/loss (-) per share: Basic
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€ (103,231)	€ (305,436)	€ 149,845
Weighted average number of shares for the purpose of income/loss (-) per share	65,500	65,075	57,614
Basic income/loss (-) per share	€ (1.58)	€ (4.69)	€ 2.60
Income/loss per share: Diluted
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€ (103,231)	€ (305,436)	€ 149,845
Weighted average number of shares for the purpose of income/loss (-) per share	65,500	65,075	57,614
Number of dilutive potential ordinary shares			2,498
Diluted income/loss (-) per share	€ (1.58)	€ (4.69)	€ 2.49

XML

Intangible assets (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about intangible assets [line items]
Beginning balance	€ 67,565	€ 24,927
Ending balance	60,103	67,565	€ 24,927
Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	83,534	35,099	11,832
Additions	3,673	48,793	23,300
Sales and disposals	(7,396)	(17)	(64)
Reclassifications to assets held for sale		(197)
Translation differences	57	(144)	31
Ending balance	79,868	83,534	35,099
Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	15,968	10,173	8,200
Amortization	7,120	6,130	2,006
Impairment	4,016
Sales and disposals	(7,396)	(17)	(63)
Reclassifications to assets held for sale		(176)
Translation differences	57	(142)	31
Ending balance	19,765	15,968	10,173
Software and databases
Disclosure of detailed information about intangible assets [line items]
Beginning balance	13,683	6,507
Ending balance	12,577	13,683	6,507
Software and databases | Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	23,717	14,541	9,111
Additions	2,423	9,494	5,463
Sales and disposals	(1,643)	(17)	(64)
Reclassifications to assets held for sale		(159)
Translation differences	57	(143)	31
Ending balance	24,554	23,717	14,541
Software and databases | Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	10,034	8,034	7,250
Amortization	3,529	2,303	816
Sales and disposals	(1,643)	(17)	(63)
Reclassifications to assets held for sale		(143)
Translation differences	57	(142)	31
Ending balance	11,977	10,034	8,034
Brands, licenses, patents and know-how
Disclosure of detailed information about intangible assets [line items]
Beginning balance	40,549	3,546
Ending balance	35,730	40,549	3,546
Brands, licenses, patents and know-how | Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	44,432	5,172	2,719
Additions	1,250	39,299	2,453
Sales and disposals	(5,753)
Reclassifications to assets held for sale		(38)
Translation differences		(1)
Ending balance	39,929	44,432	5,172
Brands, licenses, patents and know-how | Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	3,883	1,626	949
Amortization	2,053	2,289	678
Impairment	4,016
Sales and disposals	(5,753)
Reclassifications to assets held for sale		(33)
Ending balance	4,199	3,883	1,626
Contract costs
Disclosure of detailed information about intangible assets [line items]
Beginning balance	13,334	14,872
Ending balance	11,796	13,334	14,872
Contract costs | Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	15,384	15,384
Additions			15,384
Ending balance	15,384	15,384	15,384
Contract costs | Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	2,050	512
Amortization	1,538	1,538	512
Ending balance	€ 3,588	€ 2,050	€ 512

XML

Property, plant and equipment - Fully Owned (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	€ 68,264	€ 40,707
Ending balance	105,718	68,264	€ 40,707
Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	98,972	71,823	51,321
Additions	52,839	38,664	22,380
Sales and disposals	(11,494)	(1,228)	(1,618)
Reclassifications to assets held for sale		(10,110)
Translation differences	238	(178)	(8)
Reclassifications to right of use			(251)
Ending balance	140,555	98,972	71,823
Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	30,708	31,117	28,184
Sales and disposals	(11,494)	(1,186)	(1,620)
Reclassifications to assets held for sale		(4,814)
Translation differences	47	(75)	(15)
Depreciation	6,260	5,666	4,818
Impairment	9,316
Reclassifications to right of use			(251)
Ending balance	34,837	30,708	31,117
Land and leasehold improvements
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	13,011	2,204
Ending balance	20,626	13,011	2,204
Land and leasehold improvements | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	16,739	5,284	5,011
Additions	1,924	885	273
Sales and disposals		(51)
Reclassifications	7,273	10,625
Reclassifications to assets held for sale		(2)
Translation differences	195	(2)
Ending balance	26,131	16,739	5,284
Land and leasehold improvements | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	3,728	3,080	2,686
Sales and disposals		(51)
Reclassifications		46
Translation differences	28	(1)
Depreciation	1,749	654	394
Ending balance	5,505	3,728	3,080
Installation and machinery
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	15,257	18,770
Ending balance	21,521	15,257	18,770
Installation and machinery | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	37,607	44,655	38,031
Additions	4,453	3,737	6,382
Sales and disposals	(1,001)	(1,096)	(1,521)
Reclassifications	5,210	(623)	1,792
Reclassifications to assets held for sale		(8,938)
Translation differences	1	(127)	(30)
Ending balance	46,270	37,607	44,655
Installation and machinery | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	22,350	25,885	23,403
Sales and disposals	(1,000)	(1,058)	(1,521)
Reclassifications		(1,675)
Reclassifications to assets held for sale		(4,327)
Translation differences	1	(61)	(15)
Depreciation	3,398	3,587	4,018
Ending balance	24,749	22,350	25,885
Furniture, fixtures & vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	2,724	1,909
Ending balance	3,247	2,724	1,909
Furniture, fixtures & vehicles | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	7,352	4,028	3,452
Additions	434	1,824	649
Sales and disposals	(1,177)	(81)	(97)
Reclassifications	1,175	2,084	3
Reclassifications to assets held for sale		(484)
Translation differences	45	(19)	22
Ending balance	7,829	7,352	4,028
Furniture, fixtures & vehicles | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	4,628	2,119	1,819
Sales and disposals	(1,178)	(77)	(99)
Reclassifications		1,629
Reclassifications to assets held for sale		(448)
Translation differences	18	(13)
Depreciation	1,113	1,418	399
Ending balance	4,582	4,628	2,119
Other tangible assets
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	37,273	17,825
Impairment	9,300
Ending balance	60,324	37,273	17,825
Other tangible assets | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	37,273	17,856	4,827
Additions	46,028	32,218	15,076
Sales and disposals	(9,316)
Reclassifications	(13,658)	(12,086)	(1,795)
Reclassifications to assets held for sale		(686)
Translation differences	(3)	(30)
Reclassifications to right of use			(251)
Ending balance	60,324	37,273	17,856
Other tangible assets | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		31	275
Sales and disposals	(9,316)
Reclassifications to assets held for sale		(39)
Depreciation		€ 7	7
Impairment	€ 9,316
Reclassifications to right of use			(251)
Ending balance			€ 31

XML

Property, plant and equipment - Right of Use (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	€ 68,264	€ 40,707
Ending balance	105,718	68,264	€ 40,707
RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	35,113	25,345
Ending balance	31,794	35,113	25,345
Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	98,972	71,823	51,321
Additions	52,839	38,664	22,380
Sales and disposals	(11,494)	(1,228)	(1,618)
Reclassifications to right of use			251
Reclassifications to assets held for sale		(10,110)
Translation differences	238	(178)	(8)
Ending balance	140,555	98,972	71,823
Acquisition value | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	46,225	31,225	26,406
Additions	6,924	21,459	4,530
Sales and disposals	(5,133)	(167)
Reclassifications to right of use			251
Reclassifications to assets held for sale		(6,202)
Translation differences	223	(90)	38
Ending balance	48,239	46,225	31,225
Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	30,708	31,117	28,184
Sales and disposals	(11,494)	(1,186)	(1,620)
Reclassifications to right of use			251
Reclassifications to assets held for sale		(4,814)
Translation differences	47	(75)	(15)
Depreciation	6,260	5,666	4,818
Ending balance	34,837	30,708	31,117
Depreciations and impairment | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	11,111	5,879
Sales and disposals	(2,669)	(167)
Reclassifications to right of use			251
Reclassifications to assets held for sale		1,448
Translation differences	(79)	36	(4)
Depreciation	(7,923)	(6,883)	(5,624)
Ending balance	16,444	11,111	5,879
Land and building | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	31,027	22,694
Ending balance	24,961	31,027	22,694
Land and building | Acquisition value | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	39,678	27,364	24,056
Additions	1,722	18,341	3,270
Sales and disposals	(4,160)
Reclassifications to assets held for sale		(5,940)
Translation differences	221	(88)	38
Ending balance	37,461	39,678	27,364
Land and building | Depreciations and impairment | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	8,651	4,670
Sales and disposals	(1,696)
Reclassifications to assets held for sale		1,334
Translation differences	(79)	36	(4)
Depreciation	(5,466)	(5,350)	(4,666)
Ending balance	12,500	8,651	4,670
Installation and machinery
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	15,257	18,770
Ending balance	21,521	15,257	18,770
Installation and machinery | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	270	212
Ending balance	219	270	212
Installation and machinery | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	37,607	44,655	38,031
Additions	4,453	3,737	6,382
Sales and disposals	(1,001)	(1,096)	(1,521)
Reclassifications	5,210	(623)	1,792
Reclassifications to assets held for sale		(8,938)
Translation differences	1	(127)	(30)
Ending balance	46,270	37,607	44,655
Installation and machinery | Acquisition value | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	734	554	219
Additions	110	186	84
Sales and disposals	(251)	(6)
Reclassifications to right of use			251
Ending balance	593	734	554
Installation and machinery | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	22,350	25,885	23,403
Sales and disposals	(1,000)	(1,058)	(1,521)
Reclassifications		(1,675)
Reclassifications to assets held for sale		(4,327)
Translation differences	1	(61)	(15)
Depreciation	3,398	3,587	4,018
Ending balance	24,749	22,350	25,885
Installation and machinery | Depreciations and impairment | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	464	342
Sales and disposals	(251)	(6)
Reclassifications to right of use			251
Depreciation	(161)	(128)	(91)
Ending balance	374	464	342
Furniture, fixtures & vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	2,724	1,909
Ending balance	3,247	2,724	1,909
Furniture, fixtures & vehicles | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	3,817	2,440
Ending balance	6,615	3,817	2,440
Furniture, fixtures & vehicles | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	7,352	4,028	3,452
Additions	434	1,824	649
Sales and disposals	(1,177)	(81)	(97)
Reclassifications	1,175	2,084	3
Reclassifications to assets held for sale		(484)
Translation differences	45	(19)	22
Ending balance	7,829	7,352	4,028
Furniture, fixtures & vehicles | Acquisition value | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	5,812	3,307	2,130
Additions	5,092	2,932	1,176
Sales and disposals	(722)	(161)
Reclassifications to assets held for sale		(263)
Translation differences	2	(3)
Ending balance	10,184	5,812	3,307
Furniture, fixtures & vehicles | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	4,628	2,119	1,819
Sales and disposals	(1,178)	(77)	(99)
Reclassifications		1,629
Reclassifications to assets held for sale		(448)
Translation differences	18	(13)
Depreciation	1,113	1,418	399
Ending balance	4,582	4,628	2,119
Furniture, fixtures & vehicles | Depreciations and impairment | RIGHT OF USE
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	1,995	867
Sales and disposals	(722)	(161)
Reclassifications to assets held for sale		115
Translation differences		1
Depreciation	(2,296)	(1,405)	(867)
Ending balance	€ 3,569	€ 1,995	€ 867

XML

Property, plant and equipment - Carrying Amount (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment fully owned			€ 40,707
Right-of-use assets			25,345
Total property, plant and equipment	€ 137,512	€ 103,378	€ 66,052
Installation and machinery
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment fully owned	105,718
Right-of-use assets	31,794
Total property, plant and equipment	€ 137,512
Furniture, fixtures & vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment fully owned		68,264
Right-of-use assets		35,113
Total property, plant and equipment		€ 103,378

XML

Other non-current assets - Summary (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other non-current assets
Non-current restricted cash	€ 1,425	€ 1,482	€ 1,418
Financial assets held at fair value through profit or loss	0	8,951	11,275
Other non-current assets	1,048	910	1,399
Total other non-current assets	2,473	11,343	€ 14,091
Belgium
Other non-current assets
Non-current restricted cash	1,000	1,000
The Netherlands
Other non-current assets
Non-current restricted cash	€ 400	€ 500

XML

Other non-current assets - Financial assets held at fair value through profit or loss (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of fair value remeasurement
Net book value at December 31,	€ 0	€ 8,951	€ 11,275
Financial assets.
Reconciliation of fair value remeasurement
Costs at January 1	3,910	4,736	4,818
Acquisitions of the year	12	1,994
Disposals of the year	(1,928)	(2,820)	(82)
Costs at December 31,	1,994	3,910	4,736
Net book value at December 31,		8,951	11,275
Financial assets. | Level 1
Reconciliation of fair value remeasurement
Fair value adjustment at January 1	5,042	6,539	1,182
Change in fair value of current financial liability	(2,116)	(3,894)	2
Fair value adjustment of the year	(4,920)	2,397	5,355
Fair value adjustment at December 31,	€ (1,994)	€ 5,042	€ 6,539

XML

Research and Development incentives receivables - Current and non-current (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	€ 127,186	€ 111,624	€ 93,407
Current R&D incentives receivables	16,827	24,104	21,949
Total R&D incentives receivables	144,013	€ 135,728	€ 115,356
France
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	35,113
Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	€ 92,073

XML

Research and Development incentives receivables - Maturities (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	€ 127,186	€ 111,624	€ 93,407
France
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	35,113
Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	92,073
Later than one year and not later than two years [member]
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	21,532
Later than one year and not later than two years [member] | France
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	11,911
Later than one year and not later than two years [member] | Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	9,621
Later than two years and not later than three years [member]
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	23,971
Later than two years and not later than three years [member] | France
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	11,713
Later than two years and not later than three years [member] | Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	12,258
Later than three years and not later than four years [member]
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	26,384
Later than three years and not later than four years [member] | France
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	11,489
Later than three years and not later than four years [member] | Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	14,895
Later than four years and not later than five years [member]
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	16,705
Later than four years and not later than five years [member] | Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	16,705
Later than five years and not later than ten years [member]
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	38,594
Later than five years and not later than ten years [member] | Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	€ 38,594

XML

Inventories (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventories
Raw materials	€ 14,351
Semi-finished products	1,376
Finished goods	4,842	€ 36
Total inventories	€ 20,569	€ 36

XML

Trade and other receivables and other current assets (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Trade and other receivables and other current assets
Non-current trade receivables		€ 50,000
Trade receivables	€ 91,786	134,632	€ 39,603
Prepayments	202	219	292
Other receivables	19,349	13,568	14,114
Trade and other receivables	111,337	148,418	54,009
Consumables inventory		319	255
Accrued income	639	1,096	4,443
Deferred charges	9,306	10,502	4,439
Other current assets	9,945	11,917	9,138
Total trade and other receivables & other current assets	€ 121,282	€ 210,335	€ 63,147

XML

Current financial investments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2019 EUR (€)
Current financial investments
Current financial investments	€ 2,469,809,000	€ 3,026,278,000		€ 3,919,216,000
Treasury bills	877,300,000	1,454,400,000
Money market funds	1,317,500,000	1,571,900,000
Non-cancellable term deposits	€ 275,000,000.0	€ 0
Current financial investments held in USD | $			$ 134.6

XML

Cash and cash equivalents (Details) € in Thousands, $ in Millions	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Cash and cash equivalents
Cash at banks	€ 1,225,860		€ 1,239,993	€ 907,939
Term deposits	1,007,508		895,194	953,677
Total cash and cash equivalents from continuing operations	2,233,368	$ 807.9	2,135,187	1,861,616
Cash and cash equivalents included in assets classified as held for sale			7,884
Total cash and cash equivalents	€ 2,233,368		€ 2,143,071	€ 1,861,616	€ 1,290,796

XML

Cash and cash equivalents - Narrative (Details) € in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)
Cash and cash equivalents [abstract]
Term deposits	€ 1,007,508		€ 895,194	€ 953,677
Cash and cash equivalents	€ 2,233,368	$ 807.9	€ 2,135,187	€ 1,861,616
Maturity Period	3 months

XML

Share capital - Reconciliation (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Costs of capital increase			€ (4,447)
Aggregate share capital	€ 354,582			€ 294,600
Share capital.
Balance at beginning of year, amount	291,312	€ 287,282	236,540
Share capital increase	763	4,031	55,189
Costs of capital increase			(4,447)
Aggregate share capital	354,582	353,819	349,789
Costs of capital increase (accumulated)	(62,507)	(62,507)	(62,507)
Balance at end of year, amount	€ 292,075	€ 291,312	€ 287,282	€ 236,540

XML

Share capital - History (Details) - EUR (€) € in Thousands, shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
History of the share capital
Aggregate number of shares after transaction				54,466
Aggregate share capital after transaction	€ 354,582			€ 294,600
March 20, 2019
History of the share capital
Share capital increase warrants			€ 808
Number of shares issued			149
June 20, 2019
History of the share capital
Share capital increase warrants			€ 1,127
Number of shares issued			208
August 23, 2019
History of the share capital
Share capital increase new shares			€ 36,945
Number of shares issued			6,829
September 19, 2019
History of the share capital
Share capital increase warrants			€ 1,632
Number of shares issued			302
November 6 2019
History of the share capital
Share capital increase warrants			€ 14,162
Number of shares issued			2,618
November 25, 2019
History of the share capital
Share capital increase warrants			€ 515
Number of shares issued			95
December 31, 2019
History of the share capital
Aggregate number of shares after transaction			64,667
Aggregate share capital after transaction			€ 349,789
March 17, 2020
History of the share capital
Share capital increase warrants		€ 824
Number of shares issued		152
May 28, 2020
History of the share capital
Share capital increase warrants		€ 2,356
Number of shares issued		436
September 19, 2020
History of the share capital
Share capital increase warrants		€ 467
Number of shares issued		86
December 4, 2020
History of the share capital
Share capital increase warrants		€ 384
Number of shares issued		71
December 31, 2020
History of the share capital
Aggregate number of shares after transaction		65,412
Aggregate share capital after transaction		€ 353,819
March 19, 2021
History of the share capital
Share capital increase warrants	€ 540
Number of shares issued	100
June 7, 2021
History of the share capital
Share capital increase warrants	€ 59
Number of shares issued	11
September 20, 2021
History of the share capital
Share capital increase warrants	€ 41
Number of shares issued	8
December 3, 2021
History of the share capital
Share capital increase warrants	€ 123
Number of shares issued	23
December 31, 2021
History of the share capital
Aggregate number of shares after transaction	65,553
Aggregate share capital after transaction	€ 354,582

XML

Share capital - History - Narrative (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019
Share capital
Aggregate share capital	€ 354,582	€ 294,600
Aggregate number of shares after transaction		54,466,000
Number of shares	65,552,721	54,465,421	65,411,767	64,666,802

XML

Share capital - Capital increases (Details) - EUR (€)		12 Months Ended
	Jul. 14, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of classes of share capital [line items]
Balance at beginning of year, shares		65,411,767	64,666,802	54,465,421
Share capital		€ 292,075,000	€ 291,312,000	€ 287,282,000
Net issue of equity				960,087,000
Share premium		2,730,391,000	2,727,840,000	2,703,583,000
Exercise of warrant/ subscription rights		€ 3,314,000	€ 28,288,000	€ 17,167,000
Average exercise price warrants		€ 23.5	€ 38.0	€ 22.8
Balance at end of year, shares		65,552,721	65,411,767	64,666,802
Par value of shares		€ 5.41
Ordinary Shares
Disclosure of classes of share capital [line items]
Par value of shares		€ 5.41
Gilead
Disclosure of classes of share capital [line items]
Weighted average share price	€ 140.59
Share capital.
Disclosure of classes of share capital [line items]
Balance at beginning of year, amount		€ 291,312,000	€ 287,282,000	€ 236,540,000
Share capital		292,075,000	291,312,000	287,282,000	€ 236,540,000
Net issue of equity				36,945,000
Exercise of warrant/ subscription rights		763,000	4,031,000	4,082,000
Balance at end of year, amount		292,075,000	291,312,000	287,282,000
Share premium account
Disclosure of classes of share capital [line items]
Net issue of equity				923,142,000
Share premium		2,730,391,000	2,727,840,000	2,703,583,000	€ 1,277,780,000
Exercise of warrant/ subscription rights		2,551,000	24,257,000	13,085,000
Share capital and share premium
Disclosure of classes of share capital [line items]
Balance at beginning of year, amount		3,019,153,000	2,990,865,000	1,514,320,000
Balance at end of year, amount		€ 3,022,467,000	€ 3,019,153,000	€ 2,990,865,000
March 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares				149,370
Average exercise price warrants				€ 23.30
Closing share price on date of capital increase				€ 90.32
March 20, 2019 : exercise of warrants | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 808,000
March 20, 2019 : exercise of warrants | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				2,673,000
March 20, 2019 : exercise of warrants | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 3,481,000
June 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares				208,310
Average exercise price warrants				€ 20.76
Closing share price on date of capital increase				€ 113.55
June 20, 2019 : exercise of warrants | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 1,127,000
June 20, 2019 : exercise of warrants | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				3,198,000
June 20, 2019 : exercise of warrants | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 4,325,000
August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Closing share price on date of capital increase				€ 148.90
August 23, 2019 : share subscription by Gilead | Gilead | American Depositary Receipts
Disclosure of classes of share capital [line items]
Issue of shares				6,828,985
August 23, 2019 : share subscription by Gilead | Gilead | U.S. public offering
Disclosure of classes of share capital [line items]
Issue of shares				6,828,985
August 23, 2019 : share subscription by Gilead | Share capital. | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity				€ 36,945,000
Underwriter discounts and offering expenses (paid)				(4,447,000)
August 23, 2019 : share subscription by Gilead | Share capital. | Gilead | U.S. public offering
Disclosure of classes of share capital [line items]
Net issue of equity				32,498,000
August 23, 2019 : share subscription by Gilead | Share premium account | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity				923,142,000
Derecognition of Financial Liability				56,749,000
August 23, 2019 : share subscription by Gilead | Share premium account | Gilead | U.S. public offering
Disclosure of classes of share capital [line items]
Net issue of equity				979,891,000
August 23, 2019 : share subscription by Gilead | Share capital and share premium | Gilead
Disclosure of classes of share capital [line items]
Underwriter discounts and offering expenses (paid)				(4,447,000)
Derecognition of Financial Liability				56,749,000
August 23, 2019 : share subscription by Gilead | Share capital and share premium | Gilead | Ordinary Shares
Disclosure of classes of share capital [line items]
Net issue of equity				960,087,000
August 23, 2019 : share subscription by Gilead | Share capital and share premium | Gilead | U.S. public offering
Disclosure of classes of share capital [line items]
Net issue of equity				€ 1,012,389,000
September 19, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares				301,745
Average exercise price warrants				€ 22.12
Closing share price on date of capital increase				€ 145.25
September 19, 2019 : exercise of warrants | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 1,632,000
September 19, 2019 : exercise of warrants | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				5,043,000
September 19, 2019 : exercise of warrants | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 6,675,000
November 6, 2019 : exercise of warrant A by Gilead | Gilead | Warrant A [member]
Disclosure of classes of share capital [line items]
Exercise of warrants, shares				2,617,791
Average exercise price warrants				€ 140.59
Closing share price on date of capital increase				€ 170.75
November 6, 2019 : exercise of warrant A by Gilead | Share capital. | Gilead | Warrant A [member]
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 14,162,000
Total exercise of warrant A by Gilead				14,162,000
November 6, 2019 : exercise of warrant A by Gilead | Share premium account | Gilead | Warrant A [member]
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				353,873,000
Total exercise of warrant A by Gilead				432,826,000
Derecognition of Financial Liability				78,953,000
November 6, 2019 : exercise of warrant A by Gilead | Share capital and share premium | Gilead | Warrant A [member]
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				368,035,000
Total exercise of warrant A by Gilead				446,988,000
Derecognition of Financial Liability				€ 78,953,000
November 25, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares				95,180
Average exercise price warrants				€ 28.23
Closing share price on date of capital increase				€ 172.95
November 25, 2019 : exercise of warrants | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 515,000
November 25, 2019 : exercise of warrants | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				2,172,000
November 25, 2019 : exercise of warrants | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights				€ 2,687,000
March 17, 2020 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares			152,220
Average exercise price warrants			€ 35.18
Closing share price on date of capital increase			€ 141.40
March 17, 2020 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 824,000
March 17, 2020 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			4,531,000
March 17, 2020 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 5,355,000
May 28, 2020 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares			435,540
Average exercise price warrants			€ 41.13
Closing share price on date of capital increase			€ 186.60
May 28, 2020 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 2,356,000
May 28, 2020 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			15,558,000
May 28, 2020 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 17,914,000
September 18, 2020 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares			86,280
Average exercise price warrants			€ 27.85
Closing share price on date of capital increase			€ 117.70
September 18, 2020 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 467,000
September 18, 2020 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			1,936,000
September 18, 2020 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 2,403,000
December 4, 2020 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares			70,925
Average exercise price warrants			€ 36.88
Closing share price on date of capital increase			€ 100.30
December 4, 2020 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 384,000
December 4, 2020 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			2,232,000
December 4, 2020 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights			€ 2,616,000
December 3, 2021 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares		22,600
Exercise of warrant/ subscription rights		€ 41.72
Average exercise price warrants		€ 25.61
December 3, 2021 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 123,000
December 3, 2021 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		456,000
December 3, 2021 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 579,000
March 19, 2021 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares		99,814
Average exercise price warrants		€ 22.62
Closing share price on date of capital increase		€ 68.48
March 19, 2021 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 540,000
March 19, 2021 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		1,718,000
March 19, 2021 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 2,258,000
June 7, 2021 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares		10,940
Average exercise price warrants		€ 29.73
Closing share price on date of capital increase		€ 61.78
June 7, 2021 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 59,000
June 7, 2021 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		266,000
June 7, 2021 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 325,000
September 20, 2021 : exercise of subscription rights
Disclosure of classes of share capital [line items]
Exercise of warrants, shares		7,600
Average exercise price warrants		€ 19.97
Closing share price on date of capital increase		€ 46.93
September 20, 2021 : exercise of subscription rights | Share capital.
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 41,000
September 20, 2021 : exercise of subscription rights | Share premium account
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		111,000
September 20, 2021 : exercise of subscription rights | Share capital and share premium
Disclosure of classes of share capital [line items]
Exercise of warrant/ subscription rights		€ 152,000

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Share capital - Other information (Details) - EUR (€)			12 Months Ended
	Oct. 22, 2019	Apr. 25, 2017	Dec. 31, 2021
Disclosure of classes of share capital [line items]
Authorization period			5 years
Ordinary Shares
Disclosure of classes of share capital [line items]
Authorized capital, remained available under the general part			€ 41,775,187.16
Authorized capital, remained available under the specific part			€ 13,717,929.80
General authorization of share capital
Disclosure of classes of share capital [line items]
Authorization period	5 years
Authorized capital, approved	€ 67,022,402.04
Percentage of share capital	20.00%
Specific authorization of share capital
Disclosure of classes of share capital [line items]
Authorization period		5 years
Authorized capital, approved		€ 82,561,764.93
Specific authorization of share capital | Minimum
Disclosure of classes of share capital [line items]
Percentage of share capital		20.00%
Specific authorization of share capital | Maximum
Disclosure of classes of share capital [line items]
Percentage of share capital		33.00%

XML

Deferred tax - Summary of deferred tax assets and liabilities (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred tax
Deferred tax assets	€ 4,032	€ 4,475	€ 4,205
Deferred tax assets unrecognized	408,892	365,639	289,833
Deferred taxes in the consolidated statement of operations	(404)	(157)	1,537
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)	1,411	581	€ 1,537
Deferred tax expenses relating to change in tax rates	(629)	(44)
Deferred tax expenses relating to use of previously recognized deferred tax assets	€ (1,185)	€ (695)

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Deferred tax - Narrative (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total amount of tax attributes and deductible temporary differences	€ 1,653,700	€ 1,485,800	€ 1,179,000
Tax losses carried forward and deductible temporary differences	1,343,200	1,229,300	953,300
Amount of statutory tax losses carried forward for offset against future profits	635,600
Deferred tax assets	4,032	4,475	4,205
Expiry between 2020 and 2028
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Amount of statutory tax losses carried forward for offset against future profits	2,800
Belgium.
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Amount of statutory tax losses carried forward for offset against future profits	556,900
Investment Deduction
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deduction carryforward applied	1,000	1,000	1,000
Innovation Income Deduction And Investment Deduction
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deduction carryforward applied	310,500	256,500	225,700
Due to innovation income deduction | Galapagos NV
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Carried forward innovation income to be offset against future income	301,300	247,200	224,700
Dividend received deduction carried forward to be offset against future income Screen reader support enabled. | Galapagos NV
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deduction carryforward applied	€ 8,200	€ 8,400	€ 0

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Lease liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lease liabilities
Current lease liabilities	€ 7,204	€ 6,401	€ 5,826
Non-current lease liabilities	19,655	23,035	19,558
IFRS 16
Lease liabilities
Lease payments	27,720	30,385	26,353
Present value of lease payments	26,859	29,436	25,384
Less future finance charges	861	949	969
Lease liability	26,859	29,436	25,384
Current lease liabilities	7,204	6,401	5,826
Non-current lease liabilities	19,655	23,035	19,558
IFRS 16 | Less than 1 year
Lease liabilities
Lease payments	7,557	6,772	6,189
Present value of lease payments	7,204	6,401	5,826
IFRS 16 | In the second to fifth years inclusive
Lease liabilities
Lease payments	18,873	20,399	16,320
Present value of lease payments	18,381	19,833	15,783
IFRS 16 | More than 5 years
Lease liabilities
Lease payments	1,291	3,214	3,844
Present value of lease payments	€ 1,274	€ 3,201	€ 3,775

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Trade and other liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Trade and other liabilities
Trade and other liabilities.	€ 134,304	€ 171,316	€ 142,510
Other non-current liabilities	7,135	8,096	6,989
Accrued charges	3,114	1,070	923
Total trade and other liabilities	€ 144,553	€ 180,482	€ 150,422

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Deferred income (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred income related to contracts
Deferred income	€ 2,364,701	€ 2,809,133	€ 3,000,646	€ 149,801
Current deferred income	419,866	443,159	414,298
Non-current deferred income	1,944,836	2,365,974	2,586,348
Subsequent warrant B
Deferred income related to contracts
Deferred income	2,400
Collaboration agreement for filgotinib
Deferred income related to contracts
Deferred income	604,900
Gilead collaboration agreement for drug discovery platform
Deferred income related to contracts
Deferred income	1,759,800	1,990,400
Non-current deferred income	1,530,000	1,761,100
Grants
Deferred income related to contracts
Deferred income		100
Subsequent warrant B [member]
Deferred income related to contracts
Deferred income		7,900
Gilead [member]
Deferred income related to contracts
Deferred income	4,308,669	4,286,852	4,012,108
Total transaction price	4,356,967	4,340,567	4,074,148
Gilead [member] | Collaboration agreement for filgotinib
Deferred income related to contracts
Deferred income	604,875	818,654	780,261	145,798
Non-current deferred income	414,800	604,900
Gilead [member] | Gilead collaboration agreement for drug discovery platform
Deferred income related to contracts
Deferred income	€ 1,759,828	€ 1,990,412	2,220,013
Fee for services segment
Deferred income related to contracts
Deferred income			€ 362	€ 471

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Deferred income - Movement in the non-current and current deferred income (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	€ 2,809,133	€ 3,000,646	€ 149,801
Upfront/license fees received	12,643	160,000
Upfront received and impact of initial valuation of share subscription			3,655,416
Milestones received		90,192	49,727
Significant financing component	9,289	16,278	6,900
Revenue recognition of upfront	(433,884)	(411,417)	(1,009,663)
Revenue recognition of milestones	(32,408)
Revenue recognition of milestones		(46,261)	(51,156)
Catch-up effect on closing date (1)			245,883
Other movements	(67)	(305)	(46,262)
Gilead [member]
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	4,286,852	4,012,108
Other.
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	67	10	308
Other movements	(67)	57	(297)
Fee for services segment
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance		362	471
Other movements		(362)	(109)
Collaboration agreement for filgotinib
Disclosure of Deferred Income [Line Items]
Catch-up effect on closing date (1)			(245,900)
Collaboration agreement for filgotinib | Gilead [member]
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	818,654	780,261	145,798
Upfront/license fees received	12,643	160,000
Upfront received and impact of initial valuation of share subscription			641,663
Milestones received		90,192	27,317
Significant financing component	9,289	16,278	6,900
Revenue recognition of upfront	(203,301)	(181,816)	(260,207)
Revenue recognition of milestones	(32,408)
Revenue recognition of milestones		(46,261)	(27,092)
Catch-up effect on closing date (1)			245,883
Gilead collaboration agreement for ziritaxestat | Gilead [member]
Disclosure of Deferred Income [Line Items]
Upfront received and impact of initial valuation of share subscription			666,967
Revenue recognition of upfront			(666,967)
Gilead collaboration agreement for drug discovery platform
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	1,990,400
Gilead collaboration agreement for drug discovery platform | Gilead [member]
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	1,990,412	2,220,013
Upfront received and impact of initial valuation of share subscription			2,346,787
Revenue recognition of upfront	€ (230,582)	€ (229,601)	(80,918)
Other movements			(45,856)
Collaboration agreement for CF | AbbVie
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance			3,224
Milestones received			22,410
Revenue recognition of upfront			(1,570)
Revenue recognition of milestones			€ (24,064)

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Discontinued operations (Details) - EUR (€) € in Thousands	Jan. 04, 2021	Dec. 31, 2021
Disclosure of analysis of single amount of discontinued operations [line items]
Purchase commitments		€ 369,937
Fee for service business, held for sale
Disclosure of analysis of single amount of discontinued operations [line items]
Total consideration	€ 37,100
Purchase commitments	€ 19,300
Purchase Commitments Term	4 years

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Discontinued operations - Consideration received (Details) - Fidelta d.o.o. (fee-for-service segment) - EUR (€) € in Thousands		12 Months Ended
	Jan. 04, 2021	Dec. 31, 2021
Disclosure of analysis of single amount of discontinued operations [line items]
Consideration received in cash and cash equivalents	€ 37,080	€ 37,080
Total consideration	€ 37,080

XML

Discontinued operations - Assets and liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Jan. 04, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of analysis of single amount of discontinued operations [line items]
Intangible assets	€ 60,103		€ 67,565	€ 24,927
Other non-current assets	2,473		11,343	14,091
Trade and other receivables	111,337		148,418	54,009
Cash and cash equivalents			7,884
Other current assets	9,945		11,917	9,138
Total assets			23,406
Non-current lease liabilities	19,655		23,035	19,558
Other non-current liabilities	7,135		8,096	6,989
Trade and other liabilities	137,418		172,386	143,434
Current lease liabilities	€ 7,204		6,401	€ 5,826
Total liabilities			€ (8,917)
Fidelta d.o.o. (fee-for-service segment)
Disclosure of analysis of single amount of discontinued operations [line items]
Intangible assets		€ 21
Property, plant and equipment		10,050
Other non-current assets		160
Trade and other receivables		4,428
Cash and cash equivalents		7,884
Other current assets		863
Total assets		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		4,479
Current lease liabilities		727
Income tax payable		356
Total liabilities		(9,747)
Net assets disposed of		€ 13,658

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Discontinued operations - Gain on disposal of subsidiaries (Details) - EUR (€) € in Thousands		12 Months Ended
	Jan. 04, 2021	Dec. 31, 2021
Disclosure of analysis of single amount of discontinued operations [line items]
Gain on disposal		€ 22,191
Fidelta d.o.o. (fee-for-service segment)
Disclosure of analysis of single amount of discontinued operations [line items]
Consideration received in cash and cash equivalents	€ 37,080	37,080
Net assets disposed of		(13,658)
Effect of cumulative translation adjustments reclassified from equity on loss of control		(731)
Costs associated to the sale		(500)
Gain on disposal		€ 22,191

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Discontinued operations - Net cash inflow on disposal of subsidiaries (Details) - EUR (€) € in Thousands		12 Months Ended
	Jan. 04, 2021	Dec. 31, 2021
Disclosure of analysis of single amount of discontinued operations [line items]
Cash in from disposal of subsidiaries, net of cash disposed of		€ 28,696
Fidelta d.o.o. (fee-for-service segment)
Disclosure of analysis of single amount of discontinued operations [line items]
Consideration received in cash and cash equivalents	€ 37,080	37,080
Less: cash and cash equivalents balances disposed of		(7,884)
Total consideration received, net of cash disposed of		29,196
Costs associated to the sale		(500)
Cash in from disposal of subsidiaries, net of cash disposed of		€ 28,696

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Discontinued operations - Result from discontinued operations (Details) - EUR (€) € / shares in Units, € in Thousands, shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of analysis of single amount of discontinued operations [line items]
Revenues	€ 484,846	€ 478,053	€ 834,901
Gain on disposal of subsidiaries	22,191
Research and development expenses	(491,707)	(523,667)	(420,090)
Sales and marketing expenses	(69,956)	(66,468)	(24,577)
General and administrative expenses	(140,899)	(118,757)	(72,382)
Other income	53,749	52,207	50,896
Operating income/loss (-)	(165,596)	(178,632)	368,748
Other financial income	70,548	18,667	21,389
Other financial expenses	(30,911)	(152,844)	(59,968)
Net income	€ 22,191	€ 5,565	€ 1,156
Basic income per share	€ (1.58)	€ (4.69)	€ 2.60
Diluted income per share	€ (1.58)	€ (4.69)	€ 2.49
Weighted average number of shares - Basic	65,500	65,075	57,614
Fidelta d.o.o. (fee-for-service segment)
Disclosure of analysis of single amount of discontinued operations [line items]
Revenues		€ 16,140	€ 10,084
Gain on disposal of subsidiaries	€ 22,191
Research and development expenses		(7,685)	(7,229)
General and administrative expenses		(2,000)	(1,319)
Other income			8
Operating income/loss (-)	22,191	6,455	1,544
Other financial income		179	93
Other financial expenses		(176)	(102)
Income before tax	22,191	6,458	1,535
Income taxes		(893)	(379)
Net income	€ 22,191	€ 5,565	€ 1,156
Basic income per share	€ 0.34	€ 0.09	€ 0.02
Diluted income per share	€ 0.34	€ 0.08	€ 0.02
Weighted average number of shares - Basic	65,500	65,075	57,614
Weighted average number of shares - Diluted	65,831	67,572	60,112

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Discontinued operations - Cash flows (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from discontinued operations
Net cash flows generated from operating activities		€ 7,173	€ 2,911
Net cash flows generated from/used in (-) investing activities	€ 28,696	(2,284)	(1,350)
Net cash flows used in financing activities		(664)	(709)
Net cash flows from discontinued operations	€ 28,696	€ 4,225	€ 852

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Operating Cash Flow (Details) € / shares in Units, € in Thousands	12 Months Ended
	Dec. 31, 2021 EUR (€) EquityInstruments € / shares	Dec. 31, 2020 EUR (€) EquityInstruments € / shares	Dec. 31, 2019 EUR (€) EquityInstruments € / shares
Adjustment for non-cash transactions
Depreciations, amortizations and impairment	€ 34,636	€ 18,682	€ 12,448
Share-based compensation expenses	70,726	79,959	38,297
Decrease (-)/increase in retirement benefit obligations and provisions	(2,347)	(260)	(156)
Unrealized exchange losses/gains (-) and non-cash other financial result	(57,073)	105,055	11,169
Discounting effect of deferred income	9,289	16,278	6,900
Fair value re-measurement of share subscription agreement and warrants	(2,960)	(3,034)	181,644
Net change in (fair) value of current financial investments	(119)	15,900	3,081
Fair value adjustment financial assets held at fair value through profit or loss	4,919	(2,396)	(5,355)
Other non-cash costs	648	539
Total adjustment for non-cash transactions	57,718	230,723	248,027
Interest expense	11,656	9,424	1,302
Interest income	(2,853)	(7,476)	(9,247)
Tax expense	2,423	2,119	214
Total adjustment for items to disclose separately under operating cash flow	11,227	4,067	(7,731)
Gain on sale of subsidiaries	(22,191)
Gain (-)/loss on sale of fixed assets		82	(2)
Realized exchange gain on sale of current financial investments	(6,645)
Interest received related to current financial investments	(12)	(2,554)	(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	(28,847)	(2,472)	(5,061)
Decrease / increase (-) in inventories	(21,168)	(100)	20
Decrease / increase (-) in receivables	79,859	(177,155)	(67,263)
Increase in liabilities	(35,353)	31,163	79,940
Total change in working capital other than deferred income	€ 23,337	€ (146,092)	€ 12,698
Number of other equity instruments granted in share-based payment arrangement | EquityInstruments	2,493,433	2,173,335	1,699,690
Weighted average exercise price of other equity instruments granted in share-based payment arrangement | € / shares	€ 64.8	€ 168.4	€ 95.1
Subscription rights
Adjustment for non-cash transactions
Number of other equity instruments granted in share-based payment arrangement | EquityInstruments	2,493,433

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Off-balance sheet arrangements (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Off-balance sheet arrangements
Purchase commitments	€ 369,937
Less than 1 year
Off-balance sheet arrangements
Purchase commitments	212,065
1-3 years
Off-balance sheet arrangements
Purchase commitments	105,947
3-5 years
Off-balance sheet arrangements
Purchase commitments	46,426
More than 5 years
Off-balance sheet arrangements
Purchase commitments	5,499
Collaboration agreement for filgotinib | Gilead [member]
Off-balance sheet arrangements
Purchase commitments	169,600	€ 18,100	€ 27,500
Total contractual obligations and commitments	€ 369,900	€ 493,400	€ 614,100

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Contingent assets and liabilities (Details) € in Millions, $ in Millions			12 Months Ended
	Jan. 04, 2021 EUR (€)	Jul. 14, 2019 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)
Contingent Assets And Liabilities [Line Items]
Cost share mechanism			50.00%		50.00%
DIVERSITY clinical study
Contingent Assets And Liabilities [Line Items]
Amount receivable in relation to the collaboration | $					$ 15.0
Gilead [member] | Filgotinib drug license
Contingent Assets And Liabilities [Line Items]
Amount receivable in relation to the collaboration | €						€ 160.0
Upfront payments | €			€ 110.0
Upfront Payments Receivable Related Party Transactions In Next Fiscal Year | €			€ 50.0
Gilead [member] | Minimum | Filgotinib drug license
Contingent Assets And Liabilities [Line Items]
Tiered royalty Percentage deduction			20.00%	20.00%
Gilead [member] | Maximum | Filgotinib drug license
Contingent Assets And Liabilities [Line Items]
Tiered royalty Percentage deduction			30.00%	30.00%
Potential development and regulatory milestones | $				$ 295.0
Sales based milestone payment | $				$ 600.0
Fidelta d.o.o. | Selvita S A
Contingent Assets And Liabilities [Line Items]
Proportion of voting rights held in subsidiary	100.00%
Consideration received | €	€ 37.1
Outside Europe | Minimum
Contingent Assets And Liabilities [Line Items]
Tiered royalty Percentage deduction		20.00%
Outside Europe | Maximum
Contingent Assets And Liabilities [Line Items]
Tiered royalty Percentage deduction		24.00%
Filgotinib drug license
Contingent Assets And Liabilities [Line Items]
Sales based milestone payment | $		$ 600.0
Filgotinib drug license | Gilead [member] | DIVERSITY clinical study
Contingent Assets And Liabilities [Line Items]
Tiered royalty Percentage deduction			(30.00%)	(30.00%)
Filgotinib drug license | Outside Europe | Minimum
Contingent Assets And Liabilities [Line Items]
Tiered royalty Percentage deduction		20.00%
Filgotinib drug license | Outside Europe | Maximum
Contingent Assets And Liabilities [Line Items]
Tiered royalty Percentage deduction		30.00%
Scenario | Europe | Gilead [member] | Minimum | DIVERSITY clinical study
Contingent Assets And Liabilities [Line Items]
Royalties payable, percentage			5.6		5.6
Scenario | Europe | Gilead [member] | Maximum | DIVERSITY clinical study
Contingent Assets And Liabilities [Line Items]
Royalties payable, percentage			10.5		10.5

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Share based payments - Subscription right plans (Textual) (Details) - EUR (€) € / shares in Units, € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Subscription rights plans
Average exercise price	€ 92.7	€ 104.0	€ 70.1	€ 53.3
Subscription rights
Subscription rights plans
Share based compensation expense	€ 70,726	€ 79,959	€ 38,297
Average exercise price	€ 92.69	€ 103.95	€ 70.09
Weighted average remaining expected life	1955 days	2050 days	2023 days
Subscription rights | Supervisory board members
Subscription rights plans
Vesting period	36 months
Percentage vested	0.027%
2021 Plan ROW and RMV | Vesting tranche one
Subscription rights plans
Percentage vested	25.00%
2021 Plan ROW and RMV | Vesting tranche two
Subscription rights plans
Percentage vested	25.00%
2021 Plan ROW and RMV | Exercisable as of January 1, 2025
Subscription rights plans
Percentage vested	50.00%

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Share based payments - Summary of subscription rights outstanding and exercisable (Details)	12 Months Ended
	Dec. 31, 2021 EquityInstruments € / shares	Dec. 31, 2020 EquityInstruments € / shares	Dec. 31, 2019 EquityInstruments € / shares	Dec. 31, 2018 EquityInstruments € / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 92.7	€ 104.0	€ 70.1	€ 53.3
Outstanding at the beginning of the year	6,929,111	5,541,117	4,626,782
Granted during the year	2,493,433	2,173,335	1,699,690
Exercised during the year	(140,954)	(744,965)	(754,605)
Forfeited during the year	(701,753)	(40,376)	(30,750)
Outstanding at the end of the year	8,579,837	6,929,111	5,541,117
Exercisable	1,751,013	1,168,967	1,139,682	882,734
Subscription rights
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 92.69	€ 103.95	€ 70.09
Outstanding at the beginning of the year	6,929,111
Granted during the year	2,493,433
Exercised during the year	(140,954)
Forfeited during the year	(701,753)
Outstanding at the end of the year	8,579,837	6,929,111
Exercisable	1,751,013
2008 allocated on June 2008
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 5.6
Outstanding at the beginning of the year	1,365
Exercised during the year	(1,365)
Outstanding at the end of the year		1,365
2013 allocated on May 2013
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 19.38
Outstanding at the beginning of the year	55,664
Exercised during the year	(55,664)
Outstanding at the end of the year		55,664
2014 allocated on July 2014
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 14.54
Outstanding at the beginning of the year	169,340
Exercised during the year	(41,800)
Outstanding at the end of the year	127,540	169,340
Exercisable	127,540
2015 allocated on April 2015
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 28.75
Outstanding at the beginning of the year	219,473
Exercised during the year	(20,250)
Outstanding at the end of the year	199,223	219,473
Exercisable	199,223
2015 (B) allocated on December 2015
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 49.00
Outstanding at the beginning of the year	261,500
Exercised during the year	(5,000)
Outstanding at the end of the year	256,500	261,500
Exercisable	256,500
2015 RMV allocated on December 2015
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 49.00
Outstanding at the beginning of the year	40,000
Exercised during the year	(5,000)
Outstanding at the end of the year	35,000	40,000
Exercisable	35,000
2016 allocated on June 2016
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 46.10
Outstanding at the beginning of the year	342,625
Exercised during the year	(11,875)
Outstanding at the end of the year	330,750	342,625
Exercisable	330,750
2016 RMV allocated on June 2016
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 46.10
Outstanding at the beginning of the year	69,000
Outstanding at the end of the year	69,000	69,000
Exercisable	69,000
2016 (B) allocated on January 2017
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 62.50
Outstanding at the beginning of the year	10,000
Outstanding at the end of the year	10,000	10,000
Exercisable	10,000
2017 allocated on May 2017
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 80.57
Outstanding at the beginning of the year	595,500
Outstanding at the end of the year	595,500	595,500
Exercisable	595,500
2017 RMV allocated on May 2017
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 80.57
Outstanding at the beginning of the year	127,500
Outstanding at the end of the year	127,500	127,500
Exercisable	127,500
2018 allocated on April 2018
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 79.88
Outstanding at the beginning of the year	1,083,245
Forfeited during the year	(77,250)
Outstanding at the end of the year	1,005,995	1,083,245
2018 RMV allocated on April 2018
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 79.88
Outstanding at the beginning of the year	137,500
Outstanding at the end of the year	137,500	137,500
2019 allocated on April 2019
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 95.11
Outstanding at the beginning of the year	1,477,840
Forfeited during the year	(177,000)
Outstanding at the end of the year	1,300,840	1,477,840
2019 RMV allocated on April 2019
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 95.11
Outstanding at the beginning of the year	193,000
Forfeited during the year	(2,500)
Outstanding at the end of the year	190,500	193,000
2020 allocated on April 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 168.42
Outstanding at the beginning of the year	1,906,034
Forfeited during the year	(288,106)
Outstanding at the end of the year	1,617,928	1,906,034
2020 RMV allocated on April 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 168.42
Outstanding at the beginning of the year	239,525
Forfeited during the year	(12,050)
Outstanding at the end of the year	227,475	239,525
2021 BE allocated on April 2021
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 64.76
Granted during the year	1,117,603
Forfeited during the year	(33,567)
Outstanding at the end of the year	1,084,036
2021 RMV allocated on April 2021
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 64.76
Granted during the year	291,725
Forfeited during the year	(9,175)
Outstanding at the end of the year	282,550
2021 ROW allocated on April 2021
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise Price | € / shares	€ 64.76
Granted during the year	1,084,105
Forfeited during the year	(102,105)
Outstanding at the end of the year	982,000

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Share based payments - Rollforward (Details)	12 Months Ended
	Dec. 31, 2021 EquityInstruments € / shares	Dec. 31, 2020 EquityInstruments € / shares	Dec. 31, 2019 EquityInstruments € / shares	Dec. 31, 2018 EquityInstruments € / shares
Share based payments
Outstanding at the beginning of the year | EquityInstruments	6,929,111	5,541,117	4,626,782
Granted during the year | EquityInstruments	2,493,433	2,173,335	1,699,690
Forfeited during the year | EquityInstruments	(701,753)	(40,376)	(30,750)
Exercised during the year | EquityInstruments	(140,954)	(744,965)	(754,605)
Outstanding at the end of the year | EquityInstruments	8,579,837	6,929,111	5,541,117
Exercisable | EquityInstruments	1,751,013	1,168,967	1,139,682	882,734
Weighted average exercise price at beginning of the year | € / shares	€ 104.0	€ 70.1	€ 53.3
Granted during the period | € / shares	64.8	168.4	95.1
Forfeited during the year | € / shares	118.5	144.8	88.9
Exercised during the period | € / shares	23.5	38.0	22.8
Weighted average exercise price at end of the year | € / shares	92.7	104.0	70.1
Exercisable | € / shares	€ 56.6	€ 37.8	€ 30.2	€ 14.0

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Share based payments - Valuation (Details)	12 Months Ended
	Dec. 31, 2021 € / shares
2021 BE allocated on April 2021
Subscription rights plans
Exercise Price	€ 64.76
Weighted average share price at acceptance date	61.10
Weighted average fair value at acceptance date	€ 22.72
Weighted average estimated volatility	40.73%
Weighted average expected life of the subscription rights (years)	6 years 5 months 4 days
Weighted average risk free rate (%)	(0.21%)
2021 RMV/ROW allocated on April 2021
Subscription rights plans
Exercise Price	€ 64.76
Weighted average share price at acceptance date	61.10
Weighted average fair value at acceptance date	€ 20.68
Weighted average estimated volatility	40.61%
Weighted average expected life of the subscription rights (years)	5 years 4 months 9 days
Weighted average risk free rate (%)	(0.29%)
2020 allocated on April 2020, warrants
Subscription rights plans
Exercise Price	€ 168.42
Weighted average share price at acceptance date	178.95
Weighted average fair value at acceptance date	€ 86.45
Weighted average estimated volatility	51.30%
Weighted average expected life of the subscription rights (years)	6 years
Weighted average risk free rate (%)	(0.44%)
2020RMV allocated on April 2020
Subscription rights plans
Exercise Price	€ 168.42
Weighted average share price at acceptance date	178.95
Weighted average fair value at acceptance date	€ 85.79
Weighted average estimated volatility	51.32%
Weighted average expected life of the subscription rights (years)	6 years
Weighted average risk free rate (%)	(0.44%)
2019 allocated on April 2019, warrants
Subscription rights plans
Exercise Price	€ 95.11
Weighted average share price at acceptance date	107.05
Weighted average fair value at acceptance date	€ 40.04
Weighted average estimated volatility	35.86%
Weighted average expected life of the subscription rights (years)	6 years 7 days
Weighted average risk free rate (%)	(0.27%)
2019 RMV allocated on April 2019, warrants
Subscription rights plans
Exercise Price	€ 95.11
Weighted average share price at acceptance date	107.45
Weighted average fair value at acceptance date	€ 40.05
Weighted average estimated volatility	35.63%
Weighted average expected life of the subscription rights (years)	6 years
Weighted average risk free rate (%)	(0.28%)

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Share based payments - Category (Details)	Dec. 31, 2021 EquityInstruments € / shares	Dec. 31, 2020 EquityInstruments € / shares	Dec. 31, 2019 EquityInstruments € / shares	Dec. 31, 2018 EquityInstruments € / shares
Subscription rights plans
Total rights outstanding	8,579,837	6,929,111	5,541,117	4,626,782
Exercise Price | € / shares	€ 92.7	€ 104.0	€ 70.1	€ 53.3
Supervisory board members
Subscription rights plans
Total rights outstanding	157,560	157,560	222,600
Management board members
Subscription rights plans
Total rights outstanding	1,965,000	2,101,874	2,171,874
Personnel
Subscription rights plans
Total rights outstanding	6,457,277	4,669,677	3,146,643

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Share based payments - Summary of RSU's outstanding (Details)	12 Months Ended
	Dec. 31, 2021 EquityInstruments	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EquityInstruments	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€) EquityInstruments
Share based payments
Outstanding at the beginning of the year	6,929,111		5,541,117		4,626,782
Granted during the year	2,493,433		2,173,335		1,699,690
Forfeited during the year	(701,753)		(40,376)		(30,750)
Outstanding at the end of the year	8,579,837		6,929,111		5,541,117
Restricted Stock Units (RSUs)
Share based payments
Outstanding at the beginning of the year	313,596	313,596		213,147
Granted during the year	511,518
Forfeited during the year	(74,873)
Paid in cash during the year	(92,438)
Outstanding at the end of the year	657,803	657,803	313,596	313,596	213,147
Plan 2019.I
Share based payments
Outstanding at the beginning of the year	33,000
Forfeited during the year	(5,000)
Outstanding at the end of the year	28,000		33,000
Plan 2019.II
Share based payments
Outstanding at the beginning of the year	81,807
Forfeited during the year	(12,034)
Paid in cash during the year	(27,269)
Outstanding at the end of the year	42,504		81,807
Plan 2019.III
Share based payments
Outstanding at the beginning of the year	71,072
Forfeited during the year	(5,077)
Paid in cash during the year	(35,535)
Outstanding at the end of the year	30,460		71,072
Plan 2020.I
Share based payments
Outstanding at the beginning of the year	54,876
Forfeited during the year	(10,925)
Paid in cash during the year	(11,424)
Outstanding at the end of the year	32,527		54,876
Plan 2020.II
Share based payments
Outstanding at the beginning of the year	72,841
Forfeited during the year	(12,663)
Paid in cash during the year	(18,210)
Outstanding at the end of the year	41,968		72,841
Plan 2021.I.
Share based payments
Granted during the year	180,844
Forfeited during the year	(26,228)
Outstanding at the end of the year	154,616
Plan 2021.II.
Share based payments
Granted during the year	43,328
Forfeited during the year	(2,708)
Outstanding at the end of the year	40,620
Plan 2021.III
Share based payments
Granted during the year	38,413
Forfeited during the year	(238)
Outstanding at the end of the year	38,175
Plan 2021.IV.
Share based payments
Granted during the year	248,933
Outstanding at the end of the year	248,933

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Share based payments - Restricted stock units - Category (Details)	Dec. 31, 2021 EquityInstruments	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EquityInstruments	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EquityInstruments EUR (€)	Dec. 31, 2018 EquityInstruments
Share based payments
Total outstanding	8,579,837		6,929,111		5,541,117	4,626,782
Management board members
Share based payments
Total outstanding	1,965,000		2,101,874		2,171,874
Personnel
Share based payments
Total outstanding	6,457,277		4,669,677		3,146,643
Restricted Stock Units (RSUs)
Share based payments
Total outstanding	657,803	657,803	313,596	313,596	213,147
Restricted Stock Units (RSUs) | Management board members
Share based payments
Total outstanding | €		384,340		229,276	188,571
Restricted Stock Units (RSUs) | Personnel
Share based payments
Total outstanding | €		273,463		84,320	24,576

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Share based payments - Restricted stock units (RSU's) (Textual) (Details)	12 Months Ended
	Dec. 31, 2021 D shares
Restricted Stock Units (RSUs)
Share based payments
Number of securities called by each restricted stock or right | shares	1
Number of calendar days period preceding vesting date for calculate value of weighted average price of entity share traded on stock-exchange	30
Vesting period	4 years
Percentage vested	25.00%
Number of calendar days period preceding reporting period for calculate value of weighted average price of entity share traded on stock-exchange	30
RSUs, other general plans
Share based payments
Vesting period	3 years
RSUs, other general plans | Vesting percentage portion one
Share based payments
Vesting period	2 years
Share based payments, Percentage of other equity instruments vested in certain period	50.00%
RSUs, other general plans | Vesting percentage portion two
Share based payments
Vesting period	3 years
Share based payments, Percentage of other equity instruments vested in certain period	50.00%
RSUs, other general plans | Vesting tranche one | Vesting percentage portion one
Share based payments
Vesting period	3 years
Share based payments, Percentage of other equity instruments vested in certain period	34.00%
RSUs, other general plans | Vesting tranche two
Share based payments
Share based payments, Percentage of other equity instruments vested in certain period	33.00%
RSUs, other general plans | Vesting tranche two | Vesting percentage portion two
Share based payments
Vesting period	2 years

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Related parties (Details)			12 Months Ended
	Nov. 06, 2019	Aug. 28, 2019	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 EUR (€) individual	Dec. 31, 2021 EUR (€) employee	Dec. 31, 2020 EUR (€) employee	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Number of executive committee members | employee					5	6
Number of board of directors				8	8
Cost share mechanism			50.00%	50.00%	50.00%
Deferred income other than contract liabilities			€ 2,364,701,000	€ 2,364,701,000	€ 2,364,701,000	€ 2,809,133,000	€ 3,000,646,000	€ 149,801,000
Gilead [member]
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Cross charges payable relating to development of Filgotinib			5,700,000	5,700,000	5,700,000
Sales and marketing expenses payable			1,600,000	1,600,000	1,600,000
Royalty income receivable			19,984,000			16,227,000
Purchased raw materials, semi-finished products and finished products			24,900,000			200,000	0
Deferred income other than contract liabilities			€ 4,308,669,000	€ 4,308,669,000	€ 4,308,669,000	4,286,852,000	4,012,108,000
Minimum
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Percentage of ownership interest			20.00%	20.00%	20.00%
Gilead collaboration agreement for drug discovery platform
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Impact on revenues from performance obligations			€ 230,600,000			229,600,000	80,900,000
Deferred income other than contract liabilities			1,759,800,000	€ 1,759,800,000	€ 1,759,800,000	1,990,400,000
Gilead collaboration agreement for drug discovery platform | Gilead [member]
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Deferred income other than contract liabilities			1,759,828,000	1,759,828,000	1,759,828,000	1,990,412,000	2,220,013,000
Collaboration agreement for filgotinib
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Deferred income other than contract liabilities			604,900,000	604,900,000	604,900,000
Collaboration agreement for filgotinib | Gilead [member]
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Deferred income other than contract liabilities			604,875,000	604,875,000	604,875,000	€ 818,654,000	€ 780,261,000	€ 145,798,000
DIVERSITY clinical trial
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Amount receivable in relation to the collaboration			12,600,000	12,600,000	12,600,000
GLPG 1690 License
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Total transaction price			€ 667,000,000	€ 667,000,000	€ 667,000,000
Key management personnel of entity or parent | Gilead [member]
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Number of board of directors | individual				2
Gilead.
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Percentage of stake	0.251%	22.04%
Percentage of ownership interest			0.2549%	0.2549%	0.2549%	0.2554%	0.2584%
Non-current trade receivables						€ 50,000,000
Trade and other receivables			€ 88,246,000	€ 88,246,000	€ 88,246,000	132,825,000	€ 31,645,000
Trade and other payables			€ 11,580,000	11,580,000	11,580,000	27,074,000	39,100,000
Number of outstanding performance Obligations			2
Gilead. | Gilead collaboration agreement for drug discovery platform
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Deferred income other than contract liabilities			€ 1,800,000,000	1,800,000,000	1,800,000,000
Gilead. | Collaboration agreement for filgotinib
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Trade and other receivables			50,000,000.0	€ 50,000,000.0	€ 50,000,000.0
profit and cost sharing receivables			23,800,000
amount received second amendment filgotinib			110,000,000
Royalty income receivable			1,900,000
Gilead. | GLPG 1690 License
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Cost reimbursements recognized			18,100,000			34,100,000	17,700,000
Filgotinib drug license
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Total impact on revenue			235,700,000			228,100,000	41,400,000
Filgotinib drug license | Gilead [member]
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Amount receivable in relation to the collaboration						160,000,000
Filgotinib drug license | Gilead.
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Royalty income receivable			3,800,000			16,200,000
Cost reimbursements recognized			81,300,000			101,000,000.0	72,000,000.0
Adddition (deduction) of sales & marketing expenses			(59,700,000)			(4,700,000)	€ 8,200,000
Deduction of research and development expenditure			€ 7,000,000.0			€ 3,100,000
Cost share mechanism			50.00%	50.00%	50.00%
Deferred income other than contract liabilities			€ 605,000,000	€ 605,000,000	€ 605,000,000

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Related party transactions - Summary of remuneration package (Details)	12 Months Ended
	Dec. 31, 2021 EUR (€) EquityInstruments	Dec. 31, 2020 EUR (€) EquityInstruments	Dec. 31, 2019 EUR (€) EquityInstruments
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Post-employment benefits | €	€ 399,000	€ 392,000	€ 323,000
Severance package | €	802,000
Total benefits excluding warrants and RSUs | €	€ 5,413,000	€ 4,262,000	€ 16,618,000
Subscription rights offered	2,493,433	2,173,335	1,699,690
Duration of deferred payment for remaining 50% of Senior Management Bonus	3 years
Total cost of warrants granted in the year | €	€ 5,629,000	€ 22,921,000	€ 14,236,000
Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	275,000	275,000	360,000
Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	511,518
Key management personnel of entity or parent | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	254,560	61,829	188,571
Executive committee members as a group
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Short-term benefits for executive committee members as a group | €	€ 4,264,000	€ 3,102,000	€ 14,129,000
Gross salary | €	2,621,000	2,531,000	2,121,000
Employer social security on gross salary | €			61,000
Cash bonus | €	1,172,000	433,000	1,230,000
Exceptional bonus | €			10,500,000
Employer social security on exceptional bonus | €			108,000
Other short-term benefits | €	€ 471,000	€ 138,000	109,000
Long-term benefits for executive committee members as a group | €			€ 1,874,000
Executive committee members as a group | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	275,000	275,000	315,000
Raj Parekh
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €	€ 220,000	€ 220,000	€ 90,000
Raj Parekh | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered			15,000
Howard Rowe
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €	120,000	125,000	€ 55,000
Howard Rowe | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered			7,500
Werner Cautreels
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €			€ 15,000
Katrine Bosley
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €	65,000	115,000	€ 45,000
Katrine Bosley | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered			7,500
Christine Mummery
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €			€ 13,000
Mary Kerr
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €	115,000	115,000	€ 45,000
Mary Kerr | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered			7,500
Peter Guenter
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €	115,000	115,000	€ 30,000
Peter Guenter | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered			7,500
Elisabeth Svanberg
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Board fees and other short-term benefits for directors | €	€ 115,000	€ 78,000
Onno van de Stolpe | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	85,000	85,000	100,000
Onno van de Stolpe | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	63,830	18,317	57,528
Bart Filius | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	50,000	50,000	65,000
Bart Filius | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	62,730	12,600	39,846
Andre Hoekema | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	30,000	30,000	50,000
Andre Hoekema | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	51,433	832	19,922
Piet Wigerinck
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Severance package | €	€ 35,416.66
Piet Wigerinck | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	40,000	40,000	50,000
Piet Wigerinck | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	835	12,080	33,077
Walid Abi-Saab | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	40,000	40,000	50,000
Walid Abi-Saab | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	44,038	12,080	33,077
Michele Manto
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered			40,000
Michele Manto | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	30,000	30,000	40,000
Michele Manto | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered	31,694	5,920	5,121
Supervisory board members as a group
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Subscription rights offered			45,000

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Consolidated companies as of December 31, 2021 (Details)			12 Months Ended
	Jan. 04, 2021	Jan. 04, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
BioFocus DPI AG | Switzerland
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			0.00%	0.00%	100.00%
Fidelta d.o.o. | Selvita S A
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries	100.00%
Fidelta d.o.o. | Selvita S A | Fee for service business, held for sale
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%
Fidelta d.o.o. | Croatia
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			0.00%	100.00%	100.00%
Changes in voting rights			(100.00%)
Galapagos Biopharma BV | The Netherlands
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos Biopharma BV | Belgium
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos B.V | The Netherlands
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos Biopharma Spain S.L.U | Spain
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos Biopharma Italy S.r.l. | Italy
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos Biopharma Germany GmbH | Germany
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos Biopharma A.B. | Sweden
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	0.00%	0.00%
Changes in voting rights			100.00%
Galapagos Biopharma A.S. | Norway
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	0.00%	0.00%
Changes in voting rights			100.00%
Galapagos Biopharma Oy | Finland
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	0.00%	0.00%
Changes in voting rights			100.00%
Galapagos Biopharma ApS | Denmark
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	0.00%	0.00%
Changes in voting rights			100.00%
Galapagos GmbH | Switzerland
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos GmbH | Austria
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	0.00%	0.00%
Changes in voting rights			100.00%
Galapagos Biopharma Ireland Ltd | Ireland
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	0.00%	0.00%
Changes in voting rights			100.00%
Galapagos Biotech Ltd. (formerly Inpharmatica Ltd.) | United Kingdom
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos Real Estate 1 BV | Belgium
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos Real Estate 2 BV | Belgium
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			0.00%	0.00%	100.00%
Galapagos Real Estate B.V. | The Netherlands
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos SASU (France) | France
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Galapagos, Inc. (formerly Biofocus, Inc.) | United States
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%
Xenometrix, Inc. | United States
Consolidated companies as of December 31, 2021
Percentage of voting rights held directly or indirectly through subsidiaries			100.00%	100.00%	100.00%

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Financial risk management - Financial risk factors (Details) € in Thousands, $ in Millions	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)
Financial risk management
Financial assets held at fair value through profit or loss	€ 0		€ 8,951	€ 11,275
Financial assets	4,797,436		5,357,438	5,834,526
Financial liabilities	111,582		167,505	148,331
Liquidity risk
Cash and cash equivalents	2,233,368	$ 807.9	2,135,187	1,861,616
Current financial investments and cash and cash equivalents	4,703,177		5,169,349	5,780,832
Equity instruments
Financial risk management
Financial assets held at fair value through profit or loss			8,951	11,275
Current financial investments [member]
Financial risk management
Financial assets held at fair value through profit or loss	1,317,460		1,571,858	3,919,216
Financial assets	1,152,349		1,454,420
Cash and cash equivalents [member]
Financial risk management
Financial assets	2,233,368		2,135,187	1,861,616
Restricted cash (current and non-current)
Financial risk management
Financial assets	1,425		1,482	1,418
Other non-current assets.
Financial risk management
Financial assets	1,048		907	1,399
Trade and other receivables (excl prepayments)
Financial risk management
Financial assets	91,786		184,632	39,603
Current financial instruments
Financial risk management
Financial liabilities	204		3,164	6,198
Trade & other liabilities
Financial risk management
Financial liabilities	84,519		134,905	116,749
Lease liabilities [member]
Financial risk management
Financial liabilities	€ 26,859		€ 29,436	€ 25,384

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Financial risk management - Aging of Debtors (Details) - EUR (€) € in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financial risk management
Financial assets	€ 4,797,436	€ 5,357,438	€ 5,834,526
60 - 90 days | Trade receivables | Credit risk
Financial risk management
Financial assets	141	0	87
90 - 120 days | Trade receivables | Credit risk
Financial risk management
Financial assets	92	0	0
more than 120 days | Trade receivables | Credit risk
Financial risk management
Financial assets	€ 113	€ 0	€ 0

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Financial risk management - Interest rate risk and foreign exchange risk (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest rate risk
Financial risk management
Increase in interest rates		1.00%	1.00%
Decrease in interest rates		1.00%	1.00%
Approximate increase in profit or loss, and equity from increase in interest rates	€ 47,000	€ 51,700	€ 57,800
Approximate decrease in profit or loss, and equity from decrease in interest rates	€ 47,000	€ 51,700	€ 57,800
Foreign exchange risk
Financial risk management
Percentage of change in risk assumption	10.00%	10.00%	10.00%
Euros - U.S. Dollars Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	€ (83,996)	€ (116,690)	€ (133,373)
Euros - GB Pounds Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	1,093	303	113
Euros - CH Francs Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	€ 233	€ 2,013	538
Euros - HR Kunas Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value			650
U.S. Dollars - GB Pounds Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value			€ (894)

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Auditor's remuneration (Details) - EUR (€)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Auditor's remuneration
Statutory auditor's fees	€ 860,300	€ 1,202,800
audit related fees	101,100	214,400
Other fees related to non-audit services executed by the statutory auditor	0	47,700
Other fees related to non-audit services executed by persons related to the statutory auditor	€ 587,700
Other fees related to IT services		€ 890,700

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Events after balance sheet date (Details)				12 Months Ended
	Mar. 18, 2022 EUR (€) EquityInstruments € / shares shares	Jan. 26, 2022 EquityInstruments € / shares	Jan. 13, 2022 EquityInstruments € / shares	Dec. 31, 2021 EquityInstruments	Dec. 31, 2020 EquityInstruments	Dec. 31, 2019 EquityInstruments
Disclosure of non-adjusting events after reporting period [line items]
Subscription rights offered				140,954	744,965	754,605
Subscription rights offered				2,493,433	2,173,335	1,699,690
Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Subscription rights offered			30,000
Vesting period			8 years
Exercise price subscription right | € / shares			€ 46.18
Vesting percentage portion one | Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Percentage vested			25.00%
Vesting percentage portion two | Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Percentage vested			25.00%
Vesting percentage portion three | Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Percentage vested			50.00%
Member of the personnel | Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Subscription rights offered		1,000,000
Vesting period		8 years
Subscription rights, exercise price | € / shares		€ 50
CEO | Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Subscription rights offered	50,000
Members of Executive Committee | Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Subscription rights offered	95,500
Exercise price subscription right | € / shares	€ 22.61
share capital increase due to subscription rights exercised | €	€ 2,159,600.00
Number of shares issued | shares	95,500
Closing share price | € / shares	€ 57.38
Members of Board of Directors | Subscription Right Plan
Disclosure of non-adjusting events after reporting period [line items]
Subscription rights offered	10,000