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, 2020

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	GLPG	The Nasdaq Stock Market LLC
ordinary share, no par value per share
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: 65,411,767 as of December 31, 2020

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.

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. ☒

† 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 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	Other  ☐
	by the International Accounting Standards Board ☒
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	5
Item 1       Identity of Directors, Senior Management and Advisers	5
Item 2       Offer Statistics and Expected Timetable	5
Item 3       Key Information	6
A. Selected Financial Data	6
B. Capitalization and Indebtedness	7
C. Reasons for the Offer and Use of Proceeds	7
D. Risk Factors	8
Item 4      Information on the Company	49
A. History and Development of the Company	49
B. Business Overview	49
C. Organizational Structure.	113
D. Property, Plants and Equipment.	113
Item 4A    Unresolved Staff Comments	114
Item 5       Operating and Financial Review and Prospects	114
A. Operating Results	123
B. Liquidity and Capital Resources	142
C. Research and Development, Patents and Licenses, etc	147
D. Trend Information	147
E. Off-Balance Sheet Arrangements	147
F. Tabular Disclosure of Contractual Obligations	147
G. Safe Harbor	148
Item 6  Directors, Senior Management and Employees	148
A. Directors and Senior Management	148
B. Compensation	153
C. Board Practices	168
D. Employees	171
E. Share Ownership	171
Item 7     Major Shareholders and Related Party Transactions	172
A. Major Shareholders	172
B. Related Party Transactions	175
C. Interests of Experts and Counsel	181
Item 8     Financial Information	181
A. Consolidated Statements and Other Financial Information	181
B. Significant Changes	182
Item 9      The Offer and Listing	182
A. Offer and Listing Details	182
B. Plan of Distribution	182
C. Markets	182
D. Selling Shareholders	182
E. Dilution	182
F. Expenses of the Issue	182

​​

Item 10     Additional Information	183
A. Share Capital	183
B. Memorandum and Articles of Association	183
C. Material Contracts	183
D. Exchange Controls	183
E. Taxation	183
F. Dividends and Paying Agents	195
G. Statement by Experts	195
H. Documents on Display	195
I. Subsidiary Information	195
Item 11     Quantitative and Qualitative Disclosures About Market Risk	195
Item 12     Description of Securities Other than Equity Securities	198
A. Debt Securities	198
B. Warrants and Rights	198
C. Other Securities	198
D. American Depositary Shares	198
PART II	201
Item 13      Defaults, Dividend Arrearages and Delinquencies	201
Item 14     Material Modifications to the Rights of Security Holders and Use of Proceeds	201
Item 15     Controls and Procedures	201
Item 16     Reserved	202
Item 16A    Audit Committee Financial Expert	202
Item 16B     Code of Ethics	202
Item 16C     Principal Accountant Fees and Services	202
Item 16D     Exemptions from the Listing Standards for Audit Committees	203
Item 16E     Purchases of Equity Securities by the Issuer and Affiliated Purchasers	203
Item 16F     Change in Registrant’s Certifying Accountant	203
Item 16G     Corporate Governance	203
Item 16H      Mine Safety Disclosure	204
PART III	205
Item 17      Financial Statements	205
Item 18      Financial Statements	205
Item 19      Exhibits	205
EXHIBIT INDEX	#
SIGNATURES	#

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 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;

· 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;

1

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

·
regulatory development 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 forward-looking 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 third-party 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 including Gilead’s recruitment in the Phase 3 trial in Crohn’s disease. 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.

The transition of European rights to filgotinib from Gilead to us will be a significant undertaking that may require additional substantial financial and managerial resources, and we may not be successful.

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 Europe and Japan and marketed under the brand name Jyseleca, and under regulatory review in the European Union for the treatment of ulcerative colitis.

We are also dependent on the success of our other clinical-stage product candidates, such as our idiopathic pulmonary fibrosis candidates (GLPG1205 and GLPG4716 and other candidates), and our inflammation candidates/trials (such as GLPG3970, GLPG3667 GLPG3121, and GLPG4399, and the MANTA/MANTA RAy trials with filgotinib). 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, proprietary 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 ultimately to 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.

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.

3

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.

4

PART I

Item 1       Identity of directors, senior management and advisers

Not applicable.

Item 2       Offer statistics and expected timetable

Not applicable. 

5

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 and for the years ended December 31, 2020, 2019 and 2018 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 and for the years ended December 2017 and 2016 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.  

Consolidated statement of operations:

	Year ended December 31,
	2020		2019 (*)		2018 (*)		2017		2016
		(Euro, in thousands, except per share data)
Revenues	€	478,053	€	834,901	€	278,666	€	127,087	€	129,519
Other income		52,207		50,896		29,000		28,830		22,093
Total revenues and other income		530,260		885,797		307,666		155,918		151,612
Research and development expenses		(523,667)		(420,090)		(316,222)		(218,502)		(139,573)
Sales and marketing expenses		(66,468)		(24,577)		(4,146)		(2,803)		(1,785)
General and administrative expenses		(118,757)		(72,382)		(34,377)		(24,415)		(21,744)
Total operating expenses		(708,892)		(517,049)		(354,746)		(245,720)		(163,103)
Operating income/loss (-)		(178,632)		368,748		(47,080)		(89,802)		(11,491)
Fair value re-measurement of share subscription agreement and warrants		3,034		(181,644)		—		—		57,479
Other financial income		18,667		21,389		18,264		4,877		9,950
Other financial expenses		(152,844)		(59,968)		(2,602)		(30,582)		(1,692)
Income/loss (-) before tax		(309,775)		148,525		(31,417)		(115,507)		54,246
Income taxes		(1,226)		165		(822)		(198)		(235)
Net income/loss (-) from continuing operations		(311,001)		148,689		(32,240)		(115,704)		54,012
Net income from discontinued operations, net of tax		5,565		1,156		2,981
Net income/loss (-)	€	(305,436)	€	149,845	€	(29,259)	€	(115,704)	€	54,012
Net income/loss (-) attributable to:
Owners of the parent		(305,436)		149,845		(29,259)		(115,704)		54,012
Basic income/loss (-) per share	€	(4.69)	€	2.60	€	(0.56)	€	(2.34)	€	1.18
Diluted income/loss (-) per share	€	(4.69)	€	2.49	€	(0.56)	€	(2.34)	€	1.14
Basic income/loss (-) per share from continuing operations	€	(4.78)	€	2.58	€	(0.62)	€	(2.34)	€	1.18
Diluted income/loss (-) per share from continuing operations	€	(4.78)	€	2.47	€	(0.62)	€	(2.34)	€	1.14
Weighted average number of shares - Basic (in '000 shares)		65,075		57,614		52,113		49,479		45,696
Weighted average number of shares - Diluted (in '000 shares)		65,075		60,113		52,113		49,479		47,308
(*) The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

6

Condensed consolidated statement of financial position:

	December 31,
	2020		2019		2018		2017		2016
		(Euro, in thousands)
Current financial investments	€	3,026,278	€	3,919,216	€	—	€	—	€	—
Cash and cash equivalents		2,135,187		1,861,616		1,290,796		1,151,211		973,241
Cash and cash equivalents classified as assets held for sale		7,884		—		—		—		—
Total assets		5,717,731		6,068,609		1,439,496		1,286,274		1,083,338
Share capital		291,312		287,282		236,540		233,414		223,928
Share premium account		2,727,840		2,703,583		1,277,780		993,025		649,135
Total equity		2,670,355		2,875,658		1,214,249		1,011,983		758,701
Total non-current liabilities		2,412,101		2,621,158		5,342		102,592		220,846
Total current liabilities		635,274		571,793		219,905		171,699		103,791
Total liabilities		3,047,375		3,192,951		225,247		274,291		324,637
Total liabilities and equity	€	5,717,731	€	6,068,609	€	1,439,496	€	1,286,274	€	1,083,338

Condensed consolidated statement of cash flows:

	2020		2019		2018		2017		2016
	(Euro, in thousands)
Cash and cash equivalents at beginning of the period	€	1,861,616	€	1,290,796	€	1,151,211	€	973,241	€	340,314
Net cash flows generated/used (-) in operating activities		(427,336)		3,208,617		(142,466)		(147,030)		239,403
Net cash flows generated/used (-) in investing activities		757,288		(3,764,660)		(15,914)		(549)		(7,287)
Net cash flows generated in financing activities		22,040		1,335,751		287,876		353,357		395,996
Transfer to current financial investments		—		(198,922)		—		—		—
Effect of exchange rate differences on cash and cash equivalents		(70,539)		(9,966)		10,089		(27,808)		4,816
Cash and cash equivalents at end of the period	€	2,143,071	€	1,861,616	€	1,290,796	€	1,151,211	€	973,241

	December 31,
	2020		2019		2018		2017		2016
		(Euro, in thousands)
Current financial investments	€	3,026,278	€	3,919,216	€	—	€	—	€	—
Cash and cash equivalents from continuing operations		2,135,187		1,861,616		1,290,796		1,151,211		973,241
Cash and cash equivalents classified as assets held for sale		7,884		—		—		—		—
Current financial investments and cash and cash equivalents	€	5,169,349	€	5,780,832	€	1,290,796	€	1,151,211	€	973,241

B.	Capitalization and indebtedness
	Not applicable.
C.	Reasons for the offer and use of proceeds
	Not applicable.

7

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 Europe and Japan, and under regulatory review in the European Union for the treatment of ulcerative colitis.

We, and our collaboration partner, Gilead, began commercializing filgotinib in the European Union and Gilead began in Japan for the treatment of rheumatoid arthritis, or RA, following receipt in September 2020 of conditional marketing approval from the European Medicines Agency, or the EMA, and from the Japanese Ministry of Health, Labor and Welfare, or the MHLW. In November 2020, Gilead submitted a Marketing Authorization Application, or MAA, to the EMA for filgotinib for the treatment of ulcerative colitis, or UC. We expect Gilead to submit an application for approval to the MHLW for filgotinib for the treatment of UC in the first half of 2021.

In December 2020, we and Gilead entered into a binding term sheet, pursuant to which we agreed to amend our arrangement so that we will assume sole responsibility in Europe for the commercialization of filgotinib as well as for all future indications for filgotinib, by the end of 2021, with Gilead maintaining commercialization rights and the marketing authorization holder for filgotinib and other future indications for filgotinib outside of Europe. 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, 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;

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

· gain regulatory acceptance 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, 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;

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· the clinical indications for which the product is approved;

·
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 technologies 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 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. 

We currently are building a marketing and sales organization for the marketing, sales, and distribution of pharmaceutical products. In December 2020, we and Gilead entered into a binding term sheet pursuant to which we agreed to amend our arrangement so that we will assume sole responsibility in Europe for the commercialization of filgotinib, as well as for all future indications for filgotinib, by the end of 2021, which requires us 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 independently filgotinib in Europe and any product candidates that receive marketing approval and for which we maintain commercial rights, we will need to build marketing, sales, distribution, managerial and other non-technical capabilities or make arrangements with third parties to perform these services, and we may not be successful in doing so. Further, in the event of successful development of any 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 self-commercialize, we will not be able to successfully commercialize such products without reliance on third parties and, in the case of filgotinib, 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 to successfully commercialize any of our product candidates that receive regulatory approval. If we are not successful in commercializing our product candidates, 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. 

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 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. Reimbursement by a third-party payer may depend upon a number of factors, including, without limitation, the third-party payer’s determination that use of a product is:

· a covered benefit under its health plan;

·
safe, effective and medically necessary;

· appropriate for the specific patient;

· cost-effective; and neither experimental nor investigational.

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. 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.

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In 2010, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or, collectively, the ACA, became law in the United States. The goal of the ACA is to reduce the cost of healthcare and substantially change the way healthcare is financed by both governmental and private insurers. The ACA may result in downward pressure on pharmaceutical reimbursement, which could negatively affect market acceptance of any of our product candidates, if they are approved. Provisions of the ACA relevant to the pharmaceutical industry include the following:

· an annual, nondeductible fee on any entity that manufactures or imports certain branded prescription drugs and biologic products, apportioned among these entities according to their market share in certain government healthcare programs;

·
an increase in the rebates a manufacturer must pay under the Medicaid Drug Rebate Program to 23.1% and 13% of the average manufacturer price for branded and generic drugs, respectively;

· a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-sale discounts (increased to 70% as of January 1, 2019 pursuant to the Bipartisan Budget Act of 2018) on negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period, as a condition for the manufacturer’s outpatient drugs to be covered under Medicare Part D;

· extension of the manufacturers’ Medicaid rebate liability to covered drugs dispensed to individuals who are enrolled in Medicaid managed care organizations;

· 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;

· expansion of the entities eligible for discounts under the Public Health Service pharmaceutical pricing program;

·
requirements under the federal Open Payments program and its implementing regulations for the disclosure by certain drug, biologic product, device and medical supply manufacturers of payments 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 and of ownership or investment interests held by physicians and their immediate family members in these manufacturers;

· expansion of healthcare fraud and abuse laws, including the federal False Claims Act and the federal Anti-Kickback Statute, new government investigative powers and enhanced penalties for noncompliance;

· a licensure framework for follow-on biologic products; and

· a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in and conduct comparative clinical effectiveness research, along with funding for such research.

Since its enactment, there have been numerous judicial, administrative, executive, and legislative challenges to certain aspects of the ACA, and we expect there will be additional challenges and amendments to the ACA in the future. Various portions of the ACA are currently undergoing legal and constitutional challenges in the United States Supreme Court and members of Congress have introduced several pieces of legislation aimed at significantly revising or repealing the ACA. The United States Supreme Court is expected to rule on a legal challenge to the constitutionality of the ACA in early 2021. The implementation of the ACA is ongoing, the law appears likely to continue the downward pressure on pharmaceutical pricing, especially under the Medicare program, and may also increase our regulatory burdens and operating costs. Litigation and legislation related to the ACA are likely to continue, with unpredictable and uncertain results.

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 idiopathic pulmonary fibrosis candidates (GLPG1205 and GLPG4716 and other candidates), and our inflammation candidates (such as GLPG3970, GLPG3667 GLPG3121, and GLPG4399). 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 successfully, obtain regulatory approval for, and then successfully commercialize our other clinical-stage product candidates, including GLPG1205, GLPG4716, GLPG3970, GLPG3667, GLPG3121 and GLPG4399.

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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, 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 additional indications, GLPG1205, GLPG4716, GLPG3970, GLPG3667, GLPG3121 and 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 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 additional indications, GLPG1205, GLPG4716, GLPG3970, GLPG3667, GLPG3121 or 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 amount of resources to allocate to each. Consequently, we are currently primarily focused on the commercialization of filgotinib and the development of filgotinib in other indications, as well as on advancing our clinical-stage pipeline, including filgotinib, GLPG3970, GLPG3667, GLPG3121, GLPG4399, GLPG1205 and GLPG4716. 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 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 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 Europe and Japan, and filgotinib is currently under regulatory review in Europe 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 MHLW or other comparable regulatory authorities may disagree with the design or implementation of our clinical trials;

· we may be unable to demonstrate to the satisfaction of the FDA, the EMA, 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 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 MHLW or other comparable regulatory authorities may disagree with our interpretation of data from preclinical studies or clinical trials;

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· the data collected from clinical trials of our product candidates may not be sufficient to support the submission of an 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 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 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 additional indications, GLPG1205, GLPG4716, GLPG3970, GLPG3667, 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 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 June 23, 2020, 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.

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 obliged 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 Europe and the MHLW in Japan, yet a CRL from the FDA in the United States. The FDA, EMA, and MHLW will receive the 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 completed registrational Phase 3 trials for UC and received marketing authorization in Europe and Japan for RA. Even though filgotinib received regulatory approval or marketing authorization in Europe and Japan for RA, 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.

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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 candidate, 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 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. 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

· 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. The policies of the FDA, the EMA, 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, if approved, 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. Additionally, filgotinib, if approved, may have a labeling statement warning for male patients. In animal toxicology studies, filgotinib induced adverse effect on the male reproductive system. We and Gilead are conducting dedicated male semen analysis studies in CD and UC patients (MANTA) and in RA, PsA, and AS patients (MANTA-RAy). In the EU and Japan where filgotinib has been approved for RA, 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. 

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.

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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.

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 approval 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;

· 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; or

· the ongoing COVID-19 pandemic.

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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, 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 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, MHLW, or other comparable regulatory authorities resulting in the imposition of a clinical hold, 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 GLPG1205, and GPG4716 in IPF; for GLPG3970, GLPG3667 or GLPG3121 in inflammation, which could result in a delay, suspension or termination of the ongoing trials of filgotinib (in one or more indications), GLPG1205, GLPG4716, GLPG4399, GLPG3970, GLPG3667, and GLPG3121. If we experience delays in the completion of, or 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. 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 additional indications, GLPG1205, GLPG4716, GLPG4399, GLPG3970, GLPG3667, or GLPG3121, 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. For example, since IPF is a competitive market with a number of product candidates in development, patients may have other choices with respect to potential clinical trial participation, and we may have difficulty in reaching our enrollment targets. In addition, the relatively limited number of IPF patients worldwide may make enrollment more challenging. Any of these occurrences may harm our clinical trials and by extension, our business, financial condition and prospects. 

In addition, we have experienced some delays or disruptions in initiation and enrollment in our ongoing clinical trials due to the COVID-19 pandemic, and we anticipate we may experience additional delays or disruptions in the future due to the COVID-19 pandemic and changes in local site or IRB policies, availabilities of site staff, reprioritization of hospital resources, restricted access to healthcare professionals and testing sites and other containment measures or concerns among patients about participating in clinical trials during a pandemic.

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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 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, proprietary target discovery platform to build a pipeline of product candidates.

A key element of our strategy is to use and expand our novel, proprietary 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 products that will receive marketing approval and achieve market acceptance. If we do not continue to develop successfully and to commercialize product candidates, 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 candidate medicines 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 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 succeeded in obtaining regulatory approvals for product candidates more rapidly than we were able to or in obtaining patent protection or other intellectual property rights that limited 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 disease-modifying anti-rheumatic drugs, or 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 tumor necrosis factor alpha, or TNFa , like AbbVie’s Humira®, or IL‑6R like Roche’s (Ro)Actemra®, have been developed. These biologics, which must be delivered via injection, are currently the standard of care as first- and second-line therapies for RA patients who have an inadequate response to DMARDs. Xeljanz® (tofacitinib citrate), marketed by Pfizer, was 

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approved in November 2012 by the FDA and in March 2017 by the EMA as an oral treatment for the treatment of adult patients with RA who have had an inadequate response to, or who are intolerant of, MTX. Xeljanz® is the first Janus kinase, or JAK, inhibitor for RA approved for commercial sale in the United States. Olumiant® (baricitinib), a once-daily JAK1/2 inhibitor marketed by Lilly was approved by the EMA in 2017 and by the FDA in 2018. Rinvoq® (upadacitinib), a JAK inhibitor marketed by AbbVie was approved by the FDA and EMA in 2019. Our collaboration partner Gilead completed and reported results of the FINCH 1, 2, and 3, global, 52 week Phase 3 trials for filgotinib, in 2018 and 2019; Gilead subsequently filed for approval of filgotinib in RA in the U.S., Europe, and Japan in 2019. Filgotinib received approval by the MHLW in Japan and from the EC in Europe in 2020. We expect that filgotinib, will compete with all of these therapies. If generic or biosimilar versions of these therapies are approved, we would expect to also compete against those.

In the field of IBD, first line therapies are oral (or local) treatments with several low-cost generic compounds like mesalamine, more effective in UC and azathioprine, more effective in CD. Steroids like budesonide are used in both UC and CD. Companies like Santarus have developed controlled-release oral formulation with the aim to have local intestinal delivery of budesonide, thereby limiting systemic side effects. For more advanced therapy, monoclonal antibodies with various targets such as TNFa and more recently, integrins by vedolizumab (Entyvio®), marketed by Takeda, and ustekinumab (Stelera®), a monoclonal antibody against IL-12 and IL-23, marketed by Johnson & Johnson, are approved. Tofacitinib (Xeljanz®) was approved by the FDA for use in UC in 2018. We are also aware of other therapies in clinical development for these indications, such as ozanimod, which is being developed by BMS and has shown efficacy in Phase 2 trials in UC and CD and deucravacitinib, which is being developed by BMS for inflammatory bowel disease. The large number of treatments for UC, and somewhat fewer for CD, presents a substantial level of competition for any new treatment entering the IBD market. Gilead, under our collaboration agreement, initiated a Phase 3 trial for filgotinib for CD in November 2016 and reported positive topline results from the SELECTION Phase 3 trial for filgotinib in UC in 2020. Gilead submitted filgotinib for approval in UC in Europe in 2020. We expect that filgotinib, which we are developing to treat patients with moderately to severely active CD and UC, will compete with all of these therapies. If generic or biosimilar versions of these therapies are approved, we would expect to also 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 like 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, being 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®), approved in 2017 by the FDA and in 2018 by the EC, Upadacitinib (Rinvoq®) received approval by the EC in 2021 and is currently under regulatory review at the FDA.

In the field of SLE, anti-inflammatory drugs like NSAIDS, corticosteroids, methotrexate are commonly used to treat lupus symptoms like fever, arthritis and pleurisy. Belimumab (Benlysta®) is the only approved drug to treat lupus and lupus nephritis and help control disease activity. Anifrolumab from AstraZeneca has been filed at the FDA and EMA for use in SLE and voclosporin from Aurinia is seeking as well approval for worldwide use. BIIB059 from Biogen succesfully completed a Phase 2 trial, dapirolizumab pegol from UCB/Biogen and obinutuzumab (Gazyva®) from Roche are in Phase 3. In terms of oram medication, baricitinib (Olumiant®) is in Phase 3 for SLE, 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, there are six therapies approved by FDA and the EC: etanercept (Enbrel®), infliximab (Remicade®), adalimumab (Humira®), golimumab (Simponi®), certolizumab (Cimzia®), and secukinumab (Cosentyx®), with a seventh approved by FDA, ixekizumab (Taltz®). Upadacitinib (Rinvoq®) received approval from the EC and Tofacitinib (Xeljanz) is currently under regulatory review. 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 is a novel recombinant human fibroblast growth factor 18 being developed by Merck KGaA; 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. Samumed is conducting a Phase 3 program with lorecivivint, an intra-articular approach aimed at the wnt pathway in OA joints. Sanofi acquired lixisenatide, a nanobody aimed at ADAMTS-5, but its status is unknown at the time of publication.

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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 prolong life for IPF patients by months, leaving an unmet medical need for those developing disease-modifying drugs in this field. Fibrogen has pamrevlumab and Liminal Biosciences has PBI-4050 in Phase 3 development in IPF, and several Phase 2 trials are underway with various mechanisms of action. In the field of SSc, other companies with trials running in SSc include Corbus Pharmaceuticals, currently in Phase 3. Boehringer-Ingelheim received regulatory approval from the FDA (2019) and EMA (2020) for the use of nintedanib in patients with systemic sclerosis associated interstitial lung disease (SSc-ILD).  According to the company, approximately 25% of SSc patients develop significant pulmonary involvement within three years of diagnosis.

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, venglustat from Sanofi/Genzyme and tesevatinib from Kadmon Corporation are in Phase 2 development. RGLS4326 from Regulus Therapeutics is currently being tested in a Phase 1b trial in ADPKD.

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 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 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.

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 or other applicable regulatory authorities. We, the FDA, EMA 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.

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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, including filgotinib in additional indications, GLPG1205, GLPG4716, GLPG3970, GLPG3667, 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 losses of €29.3 million for the year ended December 31, 2018, net income of €149.8 million for the year ended December 31, 2019, and net losses of €305.4 million for the year ended December 31, 2020. 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 also expect these losses to increase due to higher costs for commercialization of filgotinib as we will have full responsibility for commercialization in Europe as from 2022.

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 additional indications, GLPG1205, GLPG4716, GLPG3970, GLPG3667, GLPG3121 and 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 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.

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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 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 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, proprietary target discovery platform, otherwise developed internally or in-licensed;

· the timing and costs associated with manufacturing of 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;

· 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; or

·
significantly curtail one or more of our research or development programs or 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 additional 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. 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.

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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 will be a significant undertaking that may require additional substantial financial and managerial resources, and we may not be successful.

We may encounter costs and delays related to transitioning the European rights to filgotinib from Gilead to us. We have never undertaken the process of transitioning a marketed product back to us from a third party, and we may encounter challenges and costs that we do not currently anticipate. Delays or difficulties effecting 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, abandon the separation or 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.

Developing pharmaceutical products, conducting clinical trials, obtaining regulatory approval, establishing manufacturing capabilities and marketing approved products are 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.

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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, 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.

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 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.

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

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 that we will not have sufficient quantities of our drugs or drug candidates or such quantities at an acceptable cost or quality, which could delay, prevent or impair our development or commercialization efforts.

If, for any reason, we were to experience an unexpected loss of supply of an approved product, 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. The facilities used by our contract manufacturers or other third-party manufacturers to manufacture our approved product and our product candidates are subject to the FDA’s, EMA’s, MHLW’s and other comparable regulatory authorities’ pre-approval inspections that will be conducted after we submit our NDA or BLA to the FDA or the required approval applications to any other relevant regulatory authority. 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 both active drug substances and finished drug products. If our contract manufacturers or other third-party manufacturers cannot successfully manufacture material that conforms to applicable specifications and the strict regulatory requirements of the FDA, EMA, MHLW or others, we will not be able to secure and/or maintain regulatory approvals for our products manufactured at these facilities. In addition, we monitor, but do not control, the ability of our contract manufacturers or other third-party manufacturers to maintain adequate quality control, quality assurance and qualified personnel. If the FDA, EMA, MHLW or other comparable regulatory authority finds deficiencies at these facilities for the manufacture of our product candidates, is unable to conduct inspections necessary to approve these facilities due to delays or disruptions caused by the COVID-19 pandemic, or withdraws any approval because of deficiencies at these facilities in the future, we may be delayed in obtaining approval of these facilities for the manufacture of our drugs and drug candidates or need to find alternative manufacturing facilities, which would 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 for commercial sale. 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 if approved, for commercial sale. 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 intend to establish agreements for commercial production of filgotinib as certain manufacturing obligations are transferred back to us from Gilead pursuant to the binding term sheet that we entered into with Gilead in December 2020 to amend our existing arrangement with them, we currently do not have any agreements for the commercial production of these raw materials. Although we generally do not begin a clinical trial unless we believe we have access to a sufficient supply of a product candidate to complete the clinical trial, any significant delay in the supply of a product candidate, or the raw material components thereof, for an ongoing clinical trial due to the need to replace a contract manufacturer or other third-party manufacturer could considerably delay completion of our clinical trials, product testing and potential regulatory approval of our product candidates. 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 product candidates would be delayed or there would be a shortage in supply, which would impair our ability to generate revenues from the sale of our product candidates. Additionally, if we receive regulatory approval for our product candidates, we may experience unforeseen difficulties or challenges in the manufacture of our product candidates 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 currently obtain our supplies of finished drug product through individual purchase orders. We have not entered into long-term agreements with our current contract manufacturers or with any alternate fill/finish suppliers. Although we intend to do so prior to manufacturing obligations being transferred back to us for filgotinib and prior to any commercial launch of other product candidates in order to ensure that we maintain adequate supplies of finished drug product, we may be unable to enter into such an agreement or do so on commercially reasonable terms, which could have a material adverse impact upon our business.

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. 

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Risks related to protecting 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.

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.

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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 any litigation on our patents for filgotinib and 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 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.

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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 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.

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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 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.

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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 and methods do not or will not infringe the patents 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 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 products and 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.

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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 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 chief executive officer; Bart Filius, our president and chief operating officer; Piet Wigerinck, our chief scientific 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. 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 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.

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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.

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 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.

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.

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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. 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.

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 financial loss or the loss of valuable confidential information, which could include 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 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 or security breaches that could adversely affect our business.

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

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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 at levels which we believe are appropriate for our clinical trials. 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 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.

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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 health information privacy and security regulation of the European Union, the United States and other jurisdictions in which we conduct our business. For example, the 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). On December 2, 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 an order entered by the U.S. District Court for the District of Columbia, the portion of the rule eliminating safe harbor protection for certain rebates related to the sale or purchase of a pharmaceutical product from a manufacturer to a plan sponsor under Medicare Part D has been delayed to January 1, 2023. Further, implementation of this change and new safe harbors for point-of-sale reductions in price for prescription pharmaceutical products and pharmacy benefit manager service fees are currently under review by the Biden administration and may be amended or repealed;

·
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; 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.

 

Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations may involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations 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 these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, including, without limitation, damages, fines, imprisonment, exclusion from participation in government funded healthcare programs, such as Medicare and Medicaid, and the curtailment or restructuring of our operations or other sanctions. If any of the physicians or other healthcare providers or entities with whom we expect to do business is found to be not in compliance with applicable laws and regulations, that person or entity may be subject to criminal, civil or administrative sanctions, including exclusions from participation in government funded healthcare programs.

We may fail to comply with evolving European and other privacy laws.

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, or the “GDPR.” The GDPR applies to any company established 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 information, 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 new liabilities on services providers or data 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. Given the new law, we face uncertainty as to the exact interpretation of the new requirements, and we may be unsuccessful in implementing all measures required by data protection authorities or courts in interpretation of the new law. 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 the GDPR will be 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 EU activities. In addition, further to the United Kingdom's, or “UK”, 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. 

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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, which will be directly implemented in the laws of each European member state, without the need for further enactment. While 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 e-Privacy Regulation will come into effect before 2023.

We must also ensure that we maintain adequate safeguards to enable the transfer of personal data outside of the EEA and the UK, in particular to the United States in compliance with European data protection laws. One of the primary safeguards used for transfers of personal data from the EU and UK to the United States until recently was the Privacy Shield framework administered by the U.S. Department of Commerce, which was invalidated by a decision of the EU’s highest court in July 2020. The same decision also cast doubt on the viability of one of the primary alternatives to the Privacy Shield, namely, the European Commission’s Standard Contractual Clauses, as a vehicle for such transfers. At present, there are few, if any, viable alternatives to the Standard Contractual Clauses 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 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.

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 time-consuming. 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. 

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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.

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

In addition, we may take temporary precautionary measures intended to help minimize the risk of the virus to 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. In June 2020, 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 and equivalent foreign regulatory agencies may not be able to continue their current pace and review timelines could be extended.

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.

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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, 2020, we had cumulative carry forward tax losses of €416.6 million in Belgium, €53.4 million in France, and €8.6 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 €2.7 million of these tax loss carryforwards in the United States and the Netherlands will expire between 2026 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 €11.3 million for the year ended December 31, 2018, and €21.7 million for the year ended December 31, 2019, and €21.7 million for the year ended December 31, 2020. The French tax credit amounted to €9.3 million for the year ended December 31, 2018, and €12.4 million for the year ended December 31, 2019, and €12.4 million for the year ended December 31, 2020. 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 2020 we had €247.2 million of carry-forward IID in Belgium.

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, provided that the U.S. taxpayer meets the limitation of 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 is a company which holds at least 10% of the shares in the company. A 0% Belgian withholding tax applies when the shareholder is a U.S. company which has held directly at least 10% of the shares in the company for at least 12 months, 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 of benefits conditions as imposed by the U.S.-Belgium Tax Treaty. 

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We believe that we should not be a passive foreign investment company, or PFIC, for U.S. federal income tax purposes for the 2020 taxable year, but this conclusion is a factual determination that is made annually and thus may be subject to change. If we were a PFIC for our 2020 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. If we are a PFIC for any 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 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 should not be a PFIC for our 2020 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. We do not currently intend to provide the information necessary for U.S. holders to make a “qualified electing fund,” or QEF, election if we are treated as a PFIC for any taxable year, and prospective investors should assume that a QEF election will not be available.

We believe that we were not a controlled foreign corporation, or CFC, for U.S. federal income tax purposes for the 2020 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, 2020. 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, 2020 (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 2020 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. 

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We have received several technological innovation grants to date, totaling €32.0 million as of December 31, 2020, 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.

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.

Volatility in the London Interbank Offered Rate, or LIBOR, could affect our profitability, earnings and cash flow.

LIBOR may be volatile, with the spread between LIBOR and the prime lending rate widening significantly at times. These conditions are the result of disruptions in the international markets. At times when we have loans outstanding which are based on LIBOR, the interest rates borne by such loan facilities fluctuate with changes in LIBOR, and this would affect the amount of interest payable on our debt, which, in turn, could have an adverse effect on our profitability, earnings and cash flow. Due in part to uncertainty relating to the LIBOR calculation process in recent years, it is likely that LIBOR will be phased out in the future. As a result, lenders have insisted on provisions that entitle the lenders, in their discretion, to replace published LIBOR as the base for the interest calculation with their cost-of-funds rate. If we are required to agree to such a provision in future loan agreements, our lending costs could increase significantly, which would also have an adverse effect on our profitability, earnings and cash flow.

In addition, the banks currently reporting information used to set LIBOR will likely stop such reporting after 2021, when their commitment to reporting information ends. For example, on July 27, 2017, the U.K. Financial Conduct Authority announced that it will no longer persuade or compel banks to submit rates for the calculation of the LIBOR rates after 2021 (the “FCA Announcement”). The cessation date for submission and publication of rates for certain tenors of LIBOR has since been extended by the ICE Benchmark Administration, in its capacity as administrator of USD LIBOR, until mid-2023. Notwithstanding this possible extension, a joint statement by key regulatory authorities calls on banks to cease entering into new contracts that use USD LIBOR as a reference rate by no later than December 31, 2021. The Alternative Reference Rate Committee, a committee convened by the U.S. Federal Reserve that includes major market participants, has proposed an alternative rate to replace U.S. Dollar LIBOR: the Secured Overnight Financing Rate, or “SOFR.” Whether or not SOFR or any other potential alternative reference rate attains market traction as a LIBOR replacement rate remains in question. The impact of such a transition from LIBOR to SOFR, or any other potential alternative reference rate, could be significant for us.

We are unable to predict the effect of the FCA Announcement or other reforms, whether currently enacted or enacted in the future. They may result in the phasing out of LIBOR as a reference rate. The impact of such a transition away from LIBOR will have a limited impact as we have no financing arrangements that are linked to LIBOR.could be significant for us because of the number of our financing arrangements that are linked to LIBOR. The outcome of reforms may result in increased interest expense to us, may affect our ability to incur debt on terms acceptable to us, which could adversely affect our business, results of operations and financial condition.

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.

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The audit report included in this annual report is prepared by an auditor who is not inspected by the PCAOB, and, as such, you are deprived of the benefits of such inspection.

Auditors of companies that are registered with the SEC and traded publicly in the United States, including our auditors, must be registered with the PCAOB and are required by the laws of the United States to undergo regular inspections by the PCAOB to assess their compliance with the laws of the United States and professional standards. Although our auditors are registered with the PCAOB, because our auditors are located in Belgium, a jurisdiction where the PCAOB is currently unable to conduct inspections without the approval of the Belgian authorities, our auditors are not currently inspected by the PCAOB. This lack of PCAOB inspections in Belgium currently prevents the PCAOB from regularly evaluating audits and quality control procedures of any auditors operating in Belgium, including our auditors. The inability of the PCAOB to conduct inspections of auditors in Belgium makes it more difficult to evaluate the effectiveness of our auditors’ audit procedures or quality control procedures as compared to auditors outside of Belgium that are subject to PCAOB inspections. As a result, investors may be deprived of the benefits of PCAOB inspections.

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;

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

· general economic and market conditions.

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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 43.87% 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 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.

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 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, 2021, 48,704,290 shares were eligible for sale in the public market, 614,603 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 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).

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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 10,215,279 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 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. 

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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 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, 2021.

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, 2021, a majority of our executive officers and directors are not U.S. citizens or residents.

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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;

· 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.

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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.

The Galapagos’ group had two reportable segments, R&D and fee-for-service business. Per November 23, 2020 we signed a share purchase agreement for the sale of our Croatian subsidiary Fidelta. On January 4, 2021 we closed the sale of our fee for service business. Selvita 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. We are therefore operating as a single operating segment.

Our actual capital expenditures for the years ended December 31, 2018, 2019, and 2020 amounted to €13.7 million, €45.7 million, and €91.3 million respectively. These capital expenditures primarily consisted of land, laboratory equipment, leasehold improvements, and intangible assets. We expect our capital expenditures to increase in absolute terms in the near term as we continue to advance our research and development programs and grow our operations. We anticipate our capital expenditure in 2021 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.”

B. Business overview

We are an integrated biopharmaceutical company active in the discovery, development, and commercialization of medicines with novel modes of action, addressing disease areas of high unmet medical need. Our pipeline comprises programs ranging from discovery to Phase 3 clinical trials in inflammation, fibrosis, and other indications. Our highly flexible discovery platform is applicable across many therapeutic areas. Our broad clinical pipeline includes: preferential JAK1 inhibitor filgotinib, which is approved for the treatment of RA in Europe and Japan, filed for approval in UC in Europe, and currently in a Phase 3 trial in CD; GLPG1205, a GPR84 inhibitor which showed positive topline results in the IPF PINTA Phase 2 trial in 2020; GLPG4716, a chitinase inhibitor inlicensed from OncoArendi, in preparation for a Phase 2 study in IPF; and Toledo molecule GLPG3970, a SIK2/3 inhibitor, in Proof of Concept trials in 5 indications. In both our inflammation and fibrosis portfolios we have multiple novel mechanism of action candidates in early research. Almost exclusively these programs are based on inhibiting targets which were identified using our proprietary target discovery platform. Please see “—Glossary of terms” for terms used in this section.

Filgotinib is partnered with Gilead. We have collaborations in place with OncoArendi for GLPG4716, with Fibrocor for GLPG4586 (and potentially other assets), and for earlier stage assets with Ryvu and Scipher Medicine. For more information on our collaborations with Gilead, see “—Collaborations.” Below is an overview of our current key pipeline assets:

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Lead programs

Filgotinib: preferential JAK1 inhibitor with a potential best-in-class product profile

Rewarded by approval in RA for our first medicine, we believe that filgotinib is a promising candidate for the treatment of IBD, CD, and potentially other inflammatory diseases. We have a collaboration agreement with Gilead to develop and commercialize filgotinib in multiple diseases. Filgotinib was approved for use in RA in Europe and Japan in September 2020. Gilead decided not to advance an application approval in RA in the U.S. following receipt of a Complete Response Letter from and subsequent discussions with the U.S. FDA in 2020. Filgotinib was submitted for approval in UC in Europe in 2020 and is in a Phase 3 clinical trial in CD. Gilead expects to submit filgotinib for approval in UC in Japan in H1 2021. A further, potential regulatory path for approval in UC and CD in the U.S. is pending review of the MANTA and MANTA-RAy data by the FDA.

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At the end of 2020, we and Gilead entered into a binding term sheet pursuant to which we agreed to amend the existing arrangement for the commercialization and development of filgotinib. We will assume sole commercial, operational, and development responsibility in Europe for filgotinib in RA. Gilead will retain commercial rights and remain marketing authorization holder for filgotinib outside of Europe, including in Japan where filgotinib is approved and is co-marketed with Eisai. Gilead and we will continue to investigate the potential for filgotinib to support patients living with inflammatory bowel disease (IBD). Gilead will retain operational responsibility for the current trials in Crohn’s disease, while we will assume operational responsibility for ongoing trials in UC. We will receive payments from Gilead in connection with changes in responsibility for the commercialization and development of filgotinib in Europe, and Gilead will receive royalties from European sales of filgotinib, starting in 2024. See “—Collaborations.”

The European market for drugs that treat inflammatory diseases is considerable. We estimate that the inflammation market today in the five largest European markets is approximately €5.7 billion, with about 60% of the current market going to RA therapies and about 40% to UC and CD combined:

We have the ambition to achieve peak commercial sales of approximately €500 million in RA, UC, and CD in Europe in the latter half of this decade, targeting an 8-12% share of the total estimated market for RA, UC, and CD in the five largest markets in Europe.

The Phase 2 and 3 data observed with filgotinib in RA and UC and the Phase 2 data in CD thus far show good activity and tolerability. American College of Rheumatology (ACR) scores in Phase 2 and 3 trials in RA patients were significantly greater for filgotinib compared with placebo, and CDAI remission and SES-50 scores are similarly encouraging with filgotinib in a Phase 2 trial in CD patients who are naive to TNF therapy, and tolerability and safety data were consistently favorable across those trials. The primary endpoint was met in the Phase 3 SELECTION trial in UC patients. Filgotinib has a preferential selectivity for JAK1, and a favorable tolerability so far, including low rates of infection and low rates of venous thrombotic events (VTEs) reported in all trials.  

Filgotinib in RA

RA is a chronic autoimmune disease that affects approximately 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 market for RA treatments in the EU5 currently is approximately €3.2 billion, with 60% of patients treated with advanced therapies, including injectables, biological therapies and tsDMARDs.

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Despite there being many approved agents, considerable unmet need exists, as only one in five patients achieves full remission in the first year of treatment.

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

Filgotinib is a once daily, oral, preferential JAK1 inhibitor that has undergone extensive testing in Phase 1 and Phase 2 in RA, demonstrating a durable response with a consistent safety profile in RA patients. These studies supported progression to Phase 3 trials in RA. DARWIN 3 (NCT02065700), a multi-center, open-label, long-term follow up safety and efficacy trial of subjects who completed either DARWIN 1 or DARWIN 2 Phase 2b trials, is still ongoing today.

Our clinical results for filgotinib for RA

FINCH Phase 3 program

The safety and efficacy of 100 mg and 200 mg filgotinib once daily were investigated in the FINCH clinical Phase 3 program which was initiated in August 2016 and which includes four Phase 3, randomized, multicenter studies in patients with moderate to severe RA.

The studies were designed to characterize the efficacy and safety of filgotinib in several key patient populations following the typical RA treatment pathway. These included:

· Patients who had an inadequate response to methotrexate (MTX) (FINCH 1, NCT02889796)

· Patients with difficult-to-treat RA and an inadequate response to biologic disease-modifying antirheumatic drugs (bDMARDs) (FINCH 2, NCT02873936)

·
MTX-naïve patients (FINCH 3, NCT02886728)

· Eligible patients could also roll-over into a long-term extension study which is still ongoing (FINCH 4, NCT03025308)

In animal toxicology studies in the preclinical phase, filgotinib at a certain high dose induced adverse effects on the male reproductive system. Consequently, Gilead and Galapagos are performing dedicated male patient semen analysis trials in inflammation (RA, CD, UC, AS, and PsA) patients, called MANTA and MANTA-RAy, concurrent to all Phase 3 programs.

Recently, we announced the interim results and the primary endpoint for MANTA and MANTA-RAy. In total, 248 patients were randomized 1:1 to receive filgotinib 200 mg once daily or placebo for an initial 13-week, double-blind treatment period. The primary endpoint in both trials was the proportion of patients who had a reduction of 50% or more in sperm concentration at week 13. Patients who met this endpoint discontinued study treatment at week 13, were switched to standard of care treatment and were monitored for reversibility every 13 weeks for up to 52 weeks.

Out of the 248 randomized patients, 240 reached week 13 with two evaluable semen samples at baseline and week 13. Of those, 18 patients showed a ≥50% decline in sperm concentration, with 10/120 (8.3%) patients on placebo and 8/120 (6.7%) patients on filgotinib. These studies, which were designed with the input of the relevant health authorities, are not powered for statistical comparison between groups. These data will now be submitted to relevant regulatory authorities.

Beyond the double-blind, placebo-controlled, 13-week period, for which MANTA and MANTA-RAy results are pooled, patients who did not meet the primary endpoint of 50% or more decline in sperm motility or morphology could continue under their respective trial protocol on blinded treatment, receive open-label filgotinib or receive standard of care therapy based on disease response, for another 13 weeks before entering a long-term extension period. At any point, patients exhibiting a predetermined sperm decline enter a monitoring phase in which they are assessed every 13 weeks for reversibility for up to 52 weeks.

As the MANTA and MANTA-RAy trials are ongoing, and to maintain data integrity, Galapagos and Gilead intend to report additional results only after all patients in the monitoring phase have completed the protocol-defined observation period.

      When the MANTA and MANTA-RAy trials are completed, Galapagos and Gilead intend to submit the full results for publication in a peer-reviewed medical journal.

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FINCH 1 results

The study achieved its primary endpoint for both doses of filgotinib in the proportion of patients achieving an American College of Rheumatology 20 percent response (ACR20) compared to placebo at week 12.

The proportion of patients achieving ACR50 and ACR70 response was also significantly greater for filgotinib compared with placebo at week 12, for both doses. Patients receiving filgotinib 100 mg or 200 mg had a statistically significant reduction in the Health Assessment Questionnaire Disability Index (HAQ-DI) at week 12 compared with those receiving placebo. The proportions of patients achieving clinical remission (DAS28(CRP) < 2.6) and low disease activity (DAS28(CRP) ≤ 3.2) at week 12 were significantly higher for patients in both filgotinib arms compared with placebo. When comparing low disease activity rates at week 12, filgotinib 200 mg was non-inferior to adalimumab. Filgotinib 100 mg and 200 mg also significantly inhibited the progression of structural damage at week 24 as assessed by change from baseline in modified total Sharp score (mTSS) compared with placebo.

The FINCH 1 trial data were presented virtually at the 2020 Annual European Congress of Rheumatology (Combe et al.) and published in The Annals of the Rheumatic Diseases (Combe et al. 2021).

          Filgotinib was well tolerated in FINCH 1. See more information in the FINCH safety data section. Efficacy FINCH 1 data are summarized in the table below, with all efficacy time points assessed at week 12 except for mTSS change which was assessed at week 24:

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 FINCH 2 results

In the difficult to treat bDMARD insufficient responder population, filgotinib achieved its primary endpoint in the FINCH 2 trial in the proportion of patients achieving an American College of Rheumatology 20 percent response (ACR20) at week 12. Also at weeks 12 and 24, the proportion of patients achieving ACR50 and ACR70 response, low disease activity, and clinical remission was significantly higher for patients receiving once-daily filgotinib 100 mg or 200 mg compared to patients receiving placebo. The clinical efficacy and quality of life outcomes assessed at week 12 and week 24 were presented at the Annual ACR meeting in 2019 (Genovese et al.) and the FINCH 2 results were published in The Journal of the American Medical Association, JAMA (Genovese et al. 2019)

Filgotinib was well tolerated in FINCH 2. See more information in the FINCH safety data section.

Week 24 efficacy data from FINCH 2 are summarized in the table below:

FINCH 3 results

At week 24, the study achieved its primary endpoint of the proportion of patients achieving an American College of Rheumatology 20 percent response (ACR20). The proportion of patients achieving the primary endpoint of ACR20 response at week 24 was significantly higher for filgotinib 200 mg plus MTX, and filgotinib 100 mg plus MTX compared with MTX alone.

The proportion of patients achieving ACR50, ACR70, and clinical remission (DAS28(CRP) < 2.6) at week 24 was also significantly higher for patients receiving once-daily filgotinib 100 mg or 200 mg plus MTX compared with patients receiving MTX alone. Additionally, those who received filgotinib experienced greater reduction in the Health Assessment Questionnaire Disability Index (HAQ-DI) compared with those receiving MTX alone at week 24. Filgotinib 200 mg monotherapy inhibited the progression of structural damage at week 24 compared with MTX alone as assessed by modified total Sharp score (mTSS).

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The FINCH 3 trial data were presented at the 2019 virtual European League Against Rheumatism annual meeting (Westhovens et al. 2019) and published in The Annals of the Rheumatic Diseases (Westhovens et al. 2021). 

Filgotinib was well tolerated in FINCH 3. See more information in the FINCH safety data section.

Week 24 FINCH 3 efficacy data are summarized in the table below, which is assessed for all endpoints:

FINCH safety data

We and Gilead presented integrated safety data from 7 RA studies at the Annual EULAR E-Congress of Rheumatology 2020 (Winthrop et al). Data were integrated from 3 Phase 3 trials (FINCH 1–3), 2 Phase 2 trials (DARWIN 1, 2), and 2 long-term extension (DARWIN 3, FINCH 4) trials including up to 5.5 years of filgotinib exposure. 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. Herpes zoster reactivation was not increased in the filgotinib groups compared with the other treatment groups. The data highlight the profile of filgotinib as monotherapy and in conjunction with MTX/csDMARD (conventional synthetic disease-modifying antirheumatic drugs) in RA.

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The pooled safety data are aggregated and summarized in the table below. Data from 4,472 patients are reported, including 3,691 patients who received filgotinib:

In animal toxicology studies in the preclinical phase, filgotinib induced adverse effects on the male reproductive system. Consequently, Gilead and Galapagos are performing dedicated male patient semen analysis trials in inflammation (RA, CD, UC, AS, and PsA) patients, called MANTA and MANTA-RAy, concurrent to all Phase 3 programs. Primary endpoint data from week 13 from the MANTA and MANTA-RAy studies were reported in March 2021.

FINCH 4

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

Post EC approval completed clinical studies with filgotinib

A DDI study (NCT04608344) was conducted in the form of an open-label, randomized, two-way, crossover study in healthy adult volunteers (n=27), evaluating the effect of filgotinib on the pharmacokinetics of atorvastatin, pravastatin, and rosuvastatin, which are sensitive substrates for the OATP-1B1/1B3, and the short-term safety of administering filgotinib with or without statins. All study treatments were generally well tolerated. Co-administration with filgotinib did not have a clinically meaningful impact on the exposure of atorvastatin, pravastatin, and rosuvastatin. 

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Regulatory approvals of filgotinib in RA

Filgotinib (200 mg and 100 mg) was approved in the EU and Japan for the treatment of adult patients with moderate to severe RA in September 2020. Filgotinib, a once-daily, oral, JAK1 preferential inhibitor was discovered and developed by us using our target and drug discovery technology platform. Based on the robust clinical trial results from the global FINCH Phase 3 and DARWIN Phase 2 programs, including more than 4,500 patient years of RA clinical study experience, filgotinib has shown favorable results in terms of onset of action, efficacy, safety, and tolerability. Patients receiving filgotinib once daily showed improvements in clinical signs and symptoms, decreases in disease activity, and less progression of structural damage in joints. As only one in five RA patients achieves full remission in the first year, despite there being many approved agents, filgotinib offers a welcome new treatment option for adult patients struggling with this challenging and complex disease in Europe and Japan.

In the U.S., a CRL was received from the U.S. FDA for the New Drug Application (NDA) for filgotinib. The FDA requested data from the MANTA and MANTA-RAy studies before completing its review of the NDA. The MANTA and MANTA-RAy studies are designed to assess whether filgotinib has an impact on sperm parameters. The FDA also expressed concerns regarding the overall benefit/risk profile of the filgotinib 200 mg dose. After meetings with the FDA following the CRL, Gilead decided not to advance filgotinib in the U.S. for approval as a treatment for RA.

Commercialization of Jyseleca in RA

We and Gilead prepared to co-commercialize filgotinib in Europe, with Galapagos leading on the commercial launches in 8 of the 27 countries. With the approval of filgotinib by the European Commission in September 2020, we and Gilead commenced negotiation of access for filgotinib in member countries. Following our revised agreement with Gilead for filgotinib in Europe, we are in the process of taking over full commercial responsibility for filgotinib in RA in all 27 countries in Europe, anticipated to be substantially completed by the end of 2021. The graphic below describes the planned transition timing and relative importance of each region in Europe. See “—Collaborations.”

The transition to take over full commercial operations in Europe has been planned to preserve launch momentum. We are in the process of establishing a competitive sales force to support the current and potential future indications in Europe. Building this pan-European commercial operation is an acceleration of our commercial strategy in place for products under the separate ten-year research and development collaboration between us and Gilead, where we are responsible for all European commercialization.

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Our filgotinib program IBD

Current treatments for IBD, including UC and CD, are dominated by anti-TNF agents.

We observed high activity and a favorable tolerability profile in a Phase 2 trial with filgotinib in CD, as reported in The Lancet (Vermeire et al. 2016). We and Gilead reported that filgotinib achieved the primary endpoint in the SELECTION Phase 3 trial in UC in 2020.

Should filgotinib be approved commercially for IBD indications, Galapagos will lead commercial sales in Europe. All other countries ex-Europe will be Gilead’s commercial sales responsibility. 

Global SELECTION Phase 3 program in UC

UC is an inflammatory bowel disease resulting in ulcerations and inflammation of the inner layer of the colon and rectum. We estimate that the current market for UC treatments worldwide is $5 billion and in Europe €0.8 billion.

Although the introduction of advanced therapies has improved the treatment of some patients, 30% of patients experience primary non-response (Allez M et al. 2010), and 19% to 59% of initial responders do not sustain treatment response. (Ma C et al. 2015 and Shmidt E et al. 2018). The medical need for improved efficacy is high.

SELECTION was a global Phase 3 trial (NCT02914522) investigating efficacy and safety of 100 mg and 200 mg filgotinib once-daily compared to placebo in 1,348 patients with moderately to severely active disease including those with prior antibody therapy failure. Men and women in SELECTION were randomized to receive placebo, 100 mg, or 200 mg filgotinib. Due to preclinical findings with filgotinib regarding semen parameters, in the U.S., randomization to 200 mg was restricted to male patients who have failed at least one anti-TNF therapy and vedolizumab, a monoclonal anti-integrin antibody marketed by Takeda. Adjacent to the filgotinib Phase 3 programs, we and Gilead are conducting dedicated studies evaluating potential impact of filgotinib on semen in male CD and UC patients (MANTA) and in RA, PsA, and AS patients (MANTA-RAy).

We announced topline data from the SELECTION trial in May 2020. Filgotinib 200 mg achieved all primary endpoints in the SELECTION study, inducing clinical remission at week 10 and maintaining clinical remission at week 58 in a significantly higher proportion of patients compared with placebo. Filgotinib 100 mg did not achieve statistically significant clinical remission at week 10.

In the SELECTION trial, clinical remission was defined as an endoscopic subscore of 0 or 1, rectal bleeding as a subscore of 0, and a ≥ 1 point decrease in stool frequency from baseline to achieve a subscore of 0 or 1. Among the biologic-naïve cohort (Cohort A induction trial; n=659), 52 percent of patients had a baseline Mayo Clinic Score (MCS) of nine or higher. In the biologically-experienced cohort (Cohort B induction trial; n=689), 74 percent of patients had a baseline MCS of nine or higher, and 51 percent were previously treated with two different classes of biologics (TNFα antagonists and an integrin receptor antagonist).

Among biologic-naïve patients, a statistically significant higher proportion of patients achieved clinical remission at week 10 when treated with filgotinib 200 mg (26.1 percent, p=0.0157) compared with placebo (15.3 percent). Among biologic-experienced patients, a statistically significant higher proportion of patients achieved clinical remission at week 10 when treated with filgotinib 200 mg (11.5 percent, p=0.0103) compared with placebo (4.2 percent).

Patients who achieved clinical response or remission after 10 weeks of treatment with filgotinib 100 mg or 200 mg were subsequently re-randomized to their induction dose of filgotinib or placebo in a 2:1 ratio and treated through week 58 (maintenance trial, n=558). Both doses of filgotinib achieved the primary endpoint in this maintenance trial. At week 58, 37.2 percent of biologic-naïve and biologic-experienced patients receiving filgotinib 200 mg achieved clinical remission, compared with 11.2 percent treated with placebo (p˂0.0001). Of patients receiving filgotinib 100 mg, 23.8 percent achieved clinical remission at week 58, compared with 13.5 percent treated with placebo (p=0.0420).

In the induction trial of biologic-naïve patients, the incidence of serious adverse events was similar across treatment groups (200 mg: 1.2 percent; 100 mg: 4.7 percent; placebo: 2.9 percent). In the induction trial of biologic-experienced patients, the incidence of serious adverse events was also similar across treatment groups (200 mg: 7.3 percent; 100 mg: 5.3 percent; placebo: 6.3 percent). There were no deaths in either induction cohort.

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In the maintenance trial, 4.5 percent of patients treated with filgotinib 200 mg experienced a serious adverse event, compared with none for their corresponding placebo; 4.5 percent of patients treated with filgotinib 100 mg experienced a serious adverse event, compared with 7.7 percent for their corresponding placebo.

Rates of serious infections, herpes zoster, venous thrombosis, pulmonary embolism and gastrointestinal perforation were low and comparable across treatment groups in both the induction and maintenance phases of the study. Two deaths were observed in the filgotinib 200 mg treatment group in the maintenance trial. One patient with pre-existing asthma died due to asthma exacerbation, and the second patient with pre-existing atherosclerosis died due to left ventricular heart failure per autopsy report. Neither death was deemed as related to study drug by the investigator. 

We recently announced the interim results and primary endpoint of the ongoing MANTA and MANTA-RAy studies. The data are expected to be submitted to relevant regulatory authorities by Gilead. 

Applications for approval of filgotinib in UC

We announced validation of the marketing application for filgotinib in the treatment of UC by the European Medicines Agency in November 2020. We anticipate that Gilead will submit filgotinib for approval in UC to the Japanese Ministry of Health, Labor, and Welfare (MHLW) in the first half of 2021. We and Gilead expect decisions on potential approvals in Europe in the course of 2021 and in Japan in the first half of 2022. 

A further, potential regulatory path for approval in UC and CD in the U.S. is pending the discussion of the MANTA and MANTA-RAy semen parameter studies with the FDA.

Commercialization of filgotinib in UC

We are responsible for commercial sales operations for UC in Europe, pending approval in that indication. We anticipate an incremental increase in commercial costs in 2021 for this potential additional indication. Gilead will be responsible for commercial sales outside Europe, should filgotinib be approved for UC outside of Europe.

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. We estimate that the global market size for CD treatments today is $14 billion, of which approximately € 1.7 billion in the five largest European markets.

Today, with the most advanced therapies, 30-40% of CD patients on treatment achieve prolonged clinical remission. There are currently no highly effective oral therapies approved for CD and, similar to 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 per year in placebo-controlled trials. In data with more recent compounds, the sustainability of response is decreased to 10-15% loss of efficacy per year. There continues to be a considerable unmet need with these existing treatments. Dysregulation of the JAK signaling pathway has also been associated with CD, which suggests that filgotinib, with its preferential selectivity for JAK1, is a highly attractive candidate for the treatment of CD. It is hypothesized that with preferential inhibition of JAK1, unwanted effects such as anemia may be reduced. This is of particular importance to IBD patients, who frequently experience fecal blood loss.

Our FITZROY Phase 2 trial (NCT02048618) evaluated the efficacy and safety of once-daily filgotinib in 174 patients with moderate to severe active CD and mucosal ulceration. Patients recruited 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. 

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Gilead initiated the Phase 3 DIVERSITY trial (NCT02914561) with filgotinib in CD in November 2016. The DIVERSITY Phase 3 trial investigates the efficacy and safety of 100 mg and 200 mg filgotinib once-daily compared to placebo in patients with moderate to severe active disease including those with prior antibody therapy failure. Gilead will recruit approximately 1,300 patients from the United States, Europe, Latin America, Canada, and Asia/Pacific regions. Men and women in the DIVERSITY trial will be randomized to receive placebo, 100 mg, or 200 mg filgotinib. Due to preclinical findings with filgotinib regarding semen parameters, in the U.S. randomization to 200 mg was restricted to male patients who have failed at least one anti-TNF therapy and vedolizumab. Adjacent to the filgotinib Phase 3 programs, we and Gilead are conducting dedicated studies evaluating the potential impact of filgotinib on semen in male CD and UC patients (MANTA) and in male RA, PsA, and AS patients (MANTA-RAy). We anticipate that Gilead will complete recruitment for DIVERSITY in 2021.

In March 2017, Gilead initiated a Phase 2 trial in small bowel CD (DIVERGENCE 1, NCT03046056) and a Phase 2 trial in fistulizing CD (DIVERGENCE 2, NCT03077412). Gilead stopped recruitment early for DIVERGENCE 1 in small bowel CD, completing the randomized, placebo controlled trial to 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 trial in CD. 

            Gilead retains operational responsibility for the current trials in Crohn’s disease pursuant to the binding term sheet for filgotinib which we entered into in December 2020.  

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Other indications with filgotinib

We and Gilead decided to stop the global development programs for filgotinib in PsA or AS. We at Galapagos are evaluating potential development paths for filgotinib in PsA and AS for the European market.

Our Toledo program

“Toledo” is our program name for a novel target class, the Salt-Inducible Kinases (SIKs), 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 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 are expected to effectuate a dual mode of action on inflammation by stimulating anti-inflammatory cytokines and inhibiting pro-inflammatory cytokines. This potential master switch brings an opportunity to restore the immune balance that is typically out of control in auto-immune diseases, and is potentially differentiated from existing therapies that predominantly act by suppressing the immune system (see figure below).

Extensive Toledo portfolio

The family of SIKs contains three targets: SIK1, SIK2 and SIK3. In our search for compounds acting on these targets, over 3,000 molecules were synthesized leading to more than 10 different chemical series with multiple selectivity profiles. The lead molecule, GLPG3970, a SIK2/3 inhibitor, was prioritized over the first-generation compound GLPG3312, a pan-SIK inhibitor, following Phase 1 completion, given its more suitable pharmacological profile. GLPG3970 is currently being tested in five Phase 2 proof of concept trials. GLPG4399, a selective SIK3 inhibitor, is in Phase 1, whereas GLPG4876 and GLPG4605 are advancing preclinically (see figure below). Several other compounds with different profiles are being explored in discovery.

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The developed compounds were extensively tested in a broad panel of animal models for different inflammatory diseases. Based on the collected data including cytokine profile analysis, we discovered that these SIK compounds are able to modulate several aspects of the innate and adaptive immune system opening up a wide spectrum of potential disease indications. Based on this information, combined on the findings on SIK selectivity as well as individual compound profiles, we were able to match each compound with a set of potential disease indications. The figure below describes the Toledo family of compounds with demonstrated activity in relevant preclinical disease models for inflammation and fibrosis.

The discovery strategy for the Toledo program is to continue to advance multiple candidates across different selectivity profiles. The broad panel of in vivo disease models guides clinical development.

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GLPG3970: strong in vivo activity

The activity of GLPG3970 has been observed in vivo across different IBD models, as shown below.

As shown below, the analysis of diseased IBD colon tissue brings out the dual mode of action of GLPG3970, reducing the pro-inflammatory cytokines (such as a decrease in TNFa levels), and inducing the anti-inflammatory cytokines (such as an increase in IL-10 levels). 

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We also observed strong activity of GLPG3970 in RA and psoriasis models:

 

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GLPG3970: encouraging data from a healthy volunteer study

Following these encouraging results across a range of preclinical models, we evaluated GLPG3970 in a healthy volunteer study. The results from this Phase 1 single and multiple ascending dose study demonstrated that GLPG3970 was well tolerated, with an encouraging pharmacokinetics (PK) profile. For pharmacodynamics (PD) analysis, blood was drawn from the healthy volunteers on Day 1 and on Day 14 after administration of different doses of GLPG3970 or placebo, after which the blood was stimulated ex vivo to measure effects on cytokine release. The figure below shows a dose-dependent effect between GLPG3970 and two cytokines. The pro-inflammatory cytokine, TNFα, decreased with increased compound dosing (left). The anti-inflammatory cytokine, IL-10, increased (right) with increasing compound dosing, confirming the dual activity of GLPG3970.  

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GLPG3970: five POC signal detection studies currently ongoing

Following the completion of the first part of a Phase 1 trial, GLPG3970 progressed into a Phase 1b in psoriasis and safety and “signal seeking” Phase 2 Proof of Concept trials in four additional indications, with the first three topline readouts (CALOSOMA, SEA TURTLE, LADYBUG) expected in 2021.

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Our TYK2 program with GLPG3667

GLPG3667 is a reversible and selective TYK2 kinase domain inhibitor discovered by us. The molecule was first tested in a healthy volunteer study. This 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 for 13 days. Blood was drawn at multiple time points on day 1 and on day 10 and stimulated ex vivo with several cytokines a.o. IFNα and IL-6 to analyze the level of inhibition in pSTAT signaling obtained by GLPG3667. The Phase 1 data showed an encouraging PK profile for once daily dosing and PD activity:

In November 2020, we announced the first dosing in the Phase 1b trial with GLPG3667 in psoriasis patients. This Phase 1b trial is a randomized, double-blind, placebo-controlled, multi-center study to evaluate the safety, tolerability, efficacy, pharmacokinetics (PK), and pharmacodynamics (PD) of GLPG3667. A daily oral administration of GLPG3667 at two different dose levels or a placebo is being investigated for a duration of 4 weeks in 30 patients with moderate to severe plaque psoriasis. The primary endpoint is the change from baseline in Psoriasis Area Severity Index (PASI) score at 4 weeks. Recruitment is based in Europe and topline data are expected in 2021.

Pending successful completion of the Phase 1b study in psoriasis, we anticipate evaluation of GLPG3667 in dose range finding Phase 2 studies in psoriatic arthritis and other indications, potentially starting in 2021.

Our JAK1/TYK2 program with GLPG3121

We discovered GLPG3121 as a selective JAK1/TYK2 inhibitor. This asset is currently undergoing Phase 1 studies and preclinical data point to potential application of GLPG3121 in inflammatory diseases.

Inlicensing to further strengthen the inflammation franchise

In April 2020, we announced a global collaboration with Ryvu focused on the discovery and development of novel small molecule drugs in inflammation. Under the terms of the agreement, we have an exclusive option to license IP developed by Ryvu and to continue to develop this during the collaboration. Pending achievement of pre-agreed criteria and utilizing our inlicensing option, we will be responsible for all further development of the program.

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In August 2020, we announced a global collaboration with Scipher Medicine to advance novel drug targets identified by Scipher for the treatment of IBD. We will jointly validate a suite of novel IBD targets discovered by Scipher, after which we have the exclusive option to progress up to five targets into further drug discovery and development. Under the terms of the agreement, we will retain the rights for the discovery, development and commercialization of therapeutics for the selected target(s).

 GLPG1972 in OA

GLPG1972 is a drug candidate developed by us under our collaboration agreement with Servier. GLPG1972 acts on ADAMTS-5, a key aggrecanase involved in the breakdown of aggrecan in joint cartilage. ADAMTS-5 has been validated in the literature in both animal models and human explants, and ARGS, a byproduct of the cartilage breakdown action of ADAMTS-5, has been shown to be elevated in the joints of OA patients.

ROCCELLA Phase 2b trial

ROCCELLA was a global, double-blind, placebo-controlled, dose ranging trial evaluating the efficacy and safety of three different once-daily oral doses of GLPG1972/S201086 in 932 patients with knee osteoarthritis (OA) over 52 weeks of treatment. The study population was aged between 40 to 76 years (mean age was 63), mainly female (70%), and with a mean disease duration of 7 years.

The primary objective of ROCCELLA was to demonstrate the efficacy of at least one dose of GLPG1972/S201086 compared to placebo after 52 weeks of treatment in reducing cartilage loss of the central medial tibiofemoral compartment of the target knee via quantitative MRI.

The trial failed to meet the primary objective. The change from baseline to week 52 in cartilage thickness, in mm (SD) was -0.116 (0.27) for the placebo group and -0.068 (0.20), -0.097 (0.27) and -0.085 (0.22), for the low, medium and high dose, respectively. A statistically significant difference versus placebo was not reached in any of the treated groups. There was no significant difference compared to placebo observed on secondary endpoints, including clinical outcomes.

GLPG1972 was generally well-tolerated by patients in this Phase 2 trial.

Development of GLPG1972 subsequently was discontinued in OA.

Our fibrosis programs

Fibrotic disorders represent an area of significant unmet need. In the area of lung fibrosis specifically, patients have access to few drugs, which have limited benefit and side effects that often lead to discontinuation of treatment. To address the unmet need, we are building a unique fibrosis candidate portfolio with compounds that are active on different mechanisms involved in the pathogenesis of fibrosis. Our initial focus lies on IPF, and adjacent indications involving lung fibrosis, with the ambition to expand to other forms of organ and skin fibrosis.

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The onset of IPF starts with damaged lung epithelium, a layer that forms a protective barrier between the environment and the underlying lung tissue. The injury that occurs at this level will trigger a wound healing process, with on the immunity side the mediation of macrophages to promote tissue regeneration. To promote the closure of the wound, the macrophages will attract and activate fibroblasts. These fibroblasts, however, accumulate in an excessive way which leads to abnormal tissue repair and the deposition of extracellular matrix components that aggravate the disease. Eventually this leads to respiratory failure. GLPG1205 (GPR84 inhibitor) is believed to interfere with the immune response of lung fibrosis. In 2020, we in-licensed chitinase inhibitor GLPG4716, in preparation for a Phase 2 in IPF, with demonstrated activity on the macrophage immune response axis. In early stage development, we are advancing two other molecules from our Toledo portfolio aimed toward the immune response, two additional novel GLPG targets with a role in fibroblast activation, and one GLPG target and an in-licensed compound form Ryvu Therapeutics directed towards the extracellular matrix (see figure below).

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IPF

About IPF

IPF 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., EU5 and Japan, and this population is expected to grow, in part due to improved diagnosis. Furthermore, prevalence is expected to increase with the aging population and worsening air pollution. The clinical prognosis of patients with IPF is poor, as the median survival at diagnosis is two to four years. Currently, no therapies have been found to cure or stop the progression of IPF. The current treatment strategy aims to slow disease progression and improve quality of life. Lung transplantation may be an option for appropriate patients with progressive disease and minimal comorbidities.

Regulatory agencies have approved Esbriet (pirfenidone, marketed by Roche/Genentech) and Ofev (nintedanib, marketed by Boehringer Ingelheim) for the treatment of mild to moderate IPF. Both Esbriet and Ofev have been shown to slow the rate of functional decline in IPF and are gaining ground as the standard of care worldwide. Combined sales of both drugs reached $2.8 billion in 2019. These regulatory approvals represent a major breakthrough for IPF patients; however, neither drug stops the decline in lung function, and the disease in most patients on these therapies continues to progress. 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). Therefore, there is still a large unmet medical need as IPF remains a major cause of morbidity and mortality.

We estimate that the market of approved IPF drugs could grow to $5 billion by 2025.

Our IPF trials

ziritaxestat

Our most advanced IPF asset was our product candidate ziritaxestat (GLPG1690), a potent and selective inhibitor of autotaxin (ATX), for which Gilead in-licensed the ex-European rights in July 2019. ATX as a potential IPF target was identified in our target discovery platform and further evaluated with ziritaxestat in a preclinical lung fibrosis model (bleomycin-treated mice).

In August 2017, we announced positive topline results for our Phase 2a FLORA trial with ziritaxestat in IPF. This randomized, double-blind, placebo-controlled trial in 23 IPF patients investigated a once-daily 600 mg oral dose of ziritaxestat or placebo. Of those 23 patients, 17 received ziritaxestat and six received placebo. Ziritaxestat was found to be generally well-tolerated, and the FLORA Phase 2a results were published in The Lancet Respiratory (Maher et al. 2018). In 2018, following the encouraging results from the FLORA trial, we announced the design of our worldwide ISABELA Phase 3 program consisting of two identically designed trials, ISABELA 1 & 2, aiming to enroll 1,500 IPF patients combined. Patients continued on their standard of care background treatment and were randomized to either 200 mg or 600 mg ziritaxestat once daily or placebo. The primary endpoint was the rate of decline of forced vital capacity (FVC) until week 52 set.

The NOVESA program was a double-blind, placebo-controlled Phase 2a proof-of-concept trial evaluating the efficacy, safety and tolerability of ziritaxestat in 33 patients with dcSSc. The primary endpoint of NOVESA was the modified Rodnan skin score (mRSS) at week 24. In 2020, we announced that ziritaxestat reached its primary endpoint of the study with a statistically significant change from baseline in the mRSS at week 24. Ziritaxestat was generally well tolerated and no deaths were reported in this study.

In February 2021, we discontinued the ISABELA Phase 3 trials in IPF. The decision was based on the recommendation of the Independent Data Monitoring Committee which, following a regular review of unblinded data, concluded that ziritaxestat’s benefit-risk profile no longer supported continuing the program. Detailed data of the ISABELA studies will be presented at future medical meetings. All clinical trials with ziritaxestat are discontinued, including the long-term extension of the Phase 2a NOVESA trial in systemic sclerosis.

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GLPG1205

GLPG1205 is a clinical candidate for IPF that showed positive topline results in the Phase 2 PINTA trial.

GLPG1205 is a small molecule selectively antagonizing GPR84. We identified the GPR84 target using our proprietary target discovery platform. The compound showed promising results in relevant pre-clinical models for IPF and favorable tolerability in a healthy volunteer study.

PINTA Phase 2 in IPF

The PINTA trial was a randomized, double-blind, placebo-controlled trial investigating a 100 mg once-daily oral dose of GLPG1205. The study recruited and included a total of 68 IPF patients. Participants were administered the drug candidate or placebo (2:1 randomization) for 26 weeks and could remain on their standard of care as background therapy, i.e. nintedanib, pirfenidone or neither. The primary objective of the trial was to assess the change from baseline in FVC (in mL) over 26 weeks compared to placebo. Other measures included safety, tolerability, time to major events, changes in functional exercise capacity, quality of life, pharmacokinetics, pharmacodynamics and FRI.

In November 2020 we announced the positive topline results from the PINTA trial in IPF. At week 26, patients receiving GLPG1205 on top of standard of care showed a smaller FVC decline, with a difference of 42mL versus placebo on top of standard of care (-76mL on placebo; -34mL on treatment). 

Although the study was not powered to show statistical significance, the FVC trend was consistent across the three treatment strata. In addition, the change in pulmonary lobar volume, as measured by FRI, correlated with the observed FVC decline.

No relevant safety signals were observed for GLPG1205 alone or on top of pirfenidone. The most frequently reported adverse events on GLPG1205 alone were gastrointestinal disorders, especially nausea. In the treatment arm of GLPG1205 on top of nintedanib, a higher rate of early discontinuations and higher rate_of TEAEs were observed. In that same arm, there was one death due to an exacerbation of IPF, which was determined to be unrelated to study treatment.

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GLPG4716

In 2020, an additional clinical product candidate was added to our fibrosis pipeline, GLPG4716, which is currently in preparation for a Phase 2 trial.

GLPG4716 is a novel, small molecule CHIT1/AMCase dual-inhibitor targeting a key pathway implicated in inflammation and tissue remodeling. We inlicensed GLPG4716 from OncoArendi in November 2020.

Increased chitinase activity is strongly induced in multiple pulmonary diseases, including IPF, SSc-ILD, sarcoidosis, as well as in other diseases with inflammatory and/or fibrotic phenotype. In humans, CHIT1 is mainly expressed by different lineages of activated blood and tissue macrophages and has been implicated in the activation and polarization cascades of macrophages, as well as the indirect activation of other immune cells. It is hypothesized that the inhibition of chitinase activity translates into a potential therapeutic benefit, as observed in a range of preclinical models. GLPG4716 has demonstrated robust anti-fibrotic activity in multiple animal models, when compared with the standard of care.

Below is the result for GLPG4716, in a preclinical IPF model, demonstrating activity comparable to one of the drugs approved for IPF:

Our fibrosis collaborations

We have a global collaboration with Fibrocor focused on fibrosis. The collaboration was first announced in January 2019 on a novel target in IPF and expanded a year later with four additional novel target programs. Fibrocor is responsible for all research activity until lead optimization and we are responsible for the further development and commercialization of the in-licensed programs. Galapagos took an undisclosed equity stake in Fibrocor (privately held).

An exclusive collaboration and license agreement for the global development and commercialization of GLPG4716 was announced in November 2020 with OncoArendi Therapeutics. Under the terms of the agreement, we are responsible for the further development and commercialization of the program. In addition, we receive the option to initiate negotiations to obtain development or commercialization rights for selected preclinical candidate molecules.  

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Other pipeline

Beyond our inflammation franchise and fibrosis portfolio, we continue to invest in our early stage pipeline built from our pool of validated targets advancing toward clinical development. Within our deep portfolio, 13 programs are in lead optimization, three preclinical programs are developed towards testing in humans and ten are in clinical stage programs. Furthermore, in our early stage pipeline, three molecules are part of our Toledo portfolio. In December 2020, we announced the first dosing in the Phase 2 MANGROVE trial with a CFTR inhibitor, GLPG2737, in patients with autosomal dominant polycystic kidney disease (ADPKD).

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Our strategy

Our mission is to develop and commercialize first-in-class medicines based on novel targets. Using human primary cells, we discover which proteins (‘targets’) play a key role in disease pathways. We then identify and develop small molecules that inhibit these targets, restore the balance, 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.

In 2020 we achieved our longtime ambition to become a fully integrated biotech company, with the approval and commercial launch of the first drug from our research platform, filgotinib for the treatment of RA. Moving forward, we remain focused on the development and commercialization of novel medicines in inflammation & fibrosis, with the ambition to commercialize additional therapies that are the result of our proprietary pipeline. Our aim is to further enrich our internal pipeline with business development opportunities, including the in-licensing of molecules, programs and modalities tailored to strengthen our research platform.

The key elements of our strategy include:

·	Strengthen our innovation leadership in inflammation
	We observed strong activity in various inflammatory preclinical models with compounds targeting the SIK class of novel targets we discovered and code-named Toledo. Molecules inhibiting the SIK target family effectuate a dual mode of action on inflammation by stimulating anti-inflammatory cytokines and inhibiting pro-inflammatory cytokines. This brings a novel mode-of-action to the field of inflammation with potential differentiation on both efficacy and safety versus currently available therapies. We are executing on a broad and accelerated program to discover and develop multiple series of compounds acting on SIK targets, aimed at activity across several conditions, including inflammation. We completed Phase 1 with GLPG3970 and initiated multiple proof of concept trials in inflammatory diseases in 2020. We expect to report first topline results of three trials with GLPG3970 in the second half of this year. In addition, we initiated a Phase 1b trial in psoriasis patients with TYK2 inhibitor GLPG3667, with topline results also expected in the second half of 2021. Meanwhile, we continue to advance multiple preclinical candidates in inflammation, and to scale-up our target and drug discovery productivity. We also explore additional modalities of drug therapies aimed at inflammation, and to this aim, we actively collaborate with external research partners to further accelerate our progress.
·	Further expand European commercial access to our first marketed product, filgotinib, and gain market approval in additional inflammatory indications
	Following the European regulatory approval of filgotinib in RA and the revised agreement for filgotinib announced in December 2020 (see Notes to the consolidated financial statements), we and Gilead are securing European market access while also transitioning all European commercial operations to us. Gilead remains responsible for sales outside of Europe and obtained approval for filgotinib in RA in Japan in 2020. We and Gilead are developing filgotinib in CD and UC. Gilead submitted the application for approval of filgotinib in UC in Europe and is expected to submit the filing in Japan in the first half of 2021. Gilead is conducting Phase 3 clinical programs in CD (DIVERSITY) for which completion of recruitment is expected in the second half of 2021.
·	Tackle IPF/fibrosis with our pioneering approach
	We are building a diverse fibrosis franchise with what we believe are different and complementary modes of action in IPF and other forms of fibrosis. To date, we reported positive topline results for the PINTA Phase 2a trial with GPR84 inhibitor GLPG1205 in IPF patients and nominated a preclinical candidate from our Toledo program. Recently we added GLPG4716, a chitinase inhibitor, to our IPF portfolio. This in-licensed compound from OncoArendi is in preparation for a Phase 2 trial. We also in-licensed two early stage compounds (and have an exclusive option to in-license a total of four additional novel target programs) with novel modes of action in the field of fibrosis, thereby strengthening a growing portfolio of distinct mechanism approaches to tackle IPF and fibrosis.
·	Maximize and capture the value of our target discovery platform based on novel modes of action
	Our platform has yielded many novel mode-of-action investigational therapies across multiple therapeutic areas. Our most advanced preclinical programs are GLPG4586 (fibrosis), GLPG4605 (fibrosis), and GLPG4876 (inflammation). We aim to initiate a Phase 3 trial every other year and our ambition is to conduct three Proof of Concept trials, deliver at least three preclinical product candidates and at least six new validated targets every year.

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·

Build long-term value and accelerate our pipeline with our collaboration partner Gilead

Through our transformative R&D collaboration with Gilead signed in July 2019, we plan to strengthen our discovery, development and commercial efforts to bring innovation to patients suffering from serious diseases. We strongly believe that this is a mutually beneficial collaboration, as we gain access to Gilead’s extensive experience in drug development and commercialization, and Gilead to our pioneering discovery platform, with option rights to our current and future programs outside Europe. Gilead is subject to a 10-year standstill, and made a $3.95B upfront payment plus a $1.5B equity investment (including exercise of Warrant A). In addition to retaining full European commercial rights, we are eligible to receive a $150 million opt-in fee per program, plus tiered royalties ranging from 20-24% on net sales of all our products (ex filgotinib) licensed by Gilead. For a more detailed description of the collaboration, see “—Collaborations.”

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 JAK1, a target whose role in the 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 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, 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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In order to study proteins in human cells, we take advantage of the distinctive properties of adenoviruses in combination with RNA interference. The adenovirus causing the common cold has the capability to infect almost every type of human cell. The adenoviruses 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 have been made replication incompetent, meaning they do not replicate in the human cells they infect, and thus they 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 DNA piece 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. By using these viruses, we can cause the cells to 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. Originally, we focused 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 PROTAC). These additions enable us to go broader and explore a total of 20,000 protein-coding genes. Once a target is validated, we will use the most suitable methodology to develop a potential therapeutic drug.  

When considering a small molecule approach, 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 end result is the removal of the target from the cells leading to the prevention of its disease-contributing effects.  

This discovery approach provides starting points for the discovery and development of drugs with new modes of action. Since 2009, we have generated 47 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 patient studies.

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

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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 forces teams. All local and global task force teams meet regularly and make recommendations directly to the COO. 

            We report the following impacts for 2020: 

o	Staff
	We implemented strict measures to help prevent the spread of the virus and protect the health of our staff. We rolled out our global and site business continuity plans and took appropriate recommended precautions, including suspending almost all business travel. Over time, we learned 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 will therefore be retained in our future habits and updated work place strategy, called "To the Next Normal."
	During lock-down periods, we arranged for essential tasks to be carried out within our facilities. Employees working in site needed an authorization letter signed by the line leader and site head. Consequently, approximately 70% of our Research staff continued working from the offices/labs, with periodic exceptions for local lockdowns during which no staff was allowed to come into the facilities. For those employees coming to the office, we have stringent cleaning and sanitation protocols in place, and we strictly respect social distancing policies at all times in order to minimize risk of exposure. Except for employees with laboratory operations and safety roles which require an on-site presence, over 95% of our staff systematically worked from home, supported by a robust IT infrastructure and technologies that were rolled out globally to facilitate remote forms of work. For our employees working from home, we provided additional IT materials and a stipend to cover office expenses such as ink cartridges and paper.
	It is in our culture to address what matters. During the COVID pandemic, we reached out to our employees to understand how they are coping with the new situation and understand what support they needed from the company. In May 2020, we carried out a “pulse check” employee survey. The results indicated that overall, employees felt that our company supported them well during the pandemic. Key highlights included:
	·	Appreciation for the support from the line leader and the business leadership
	·	Increased ability to adapt to home working, thanks to strong IT infrastructure and support
	·	Employees perceive themselves to have a greater focus on the job after working in isolation at home during the pandemic

	The survey also underlined the continued need for our company to support our employees and to help them find the right work-life balance (e.g. sufficient physical exercise, information on how to set-up an ergonomic workstation at home,  possibility to be ‘off-line’, more frequent short breaks), and stay connected as a team by organizing virtual coffee corners and using interactive applications during virtual meetings to increase engagement.
	Four key areas of focus were identified as part of an overarching program called "To The Next Normal", with all its elements being fully linked by our workplace and digital strategies. This is a program intended to accelerate application of the learnings over the past year in company’s operations, investing in:
	·	Enhanced approach to flexibility
	·	Future-proof, greener approach to mobility
	·	Employee well-being
	·	Integrated digital and connected virtual collaboration
o	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.

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o	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, and 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.
o	Filgotinib filing process UC
	As of publication of this report, our collaboration partner Gilead has not been informed by the regulatory agencies in Europe of approval timeline delays.
o	Manufacturing and supply chain
	To date, there has been no COVID-19 impact to the commercial supply of filgotinib. Gilead also confirmed that all sites involved in the manufacturing of filgotinib are established sites that currently manufacture other Gilead marketed products and are in good standing with the FDA and are GMP certified. Under the binding term sheet that we entered into in December 2020 to amend our arrangement with Gilead for filgotinib in Europe, Galapagos plans to become marketing authorization holder of filgotinib in Europe by year-end 2021, and then become responsible for manufacturing. We intend to work with the same manufacturing sites to ensure continuity.
o	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, turning virtual instead. The teams invested in virtual channels as part of the overall commercial build strategy, and these channels are being utilized during our commercial launch today. We note as yet no material impact on 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 thus far.

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. 

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As of March 1, 2021, patent rights held by Galapagos NV relating to our product candidates include the following:

Filgotinib product candidate: We have six 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 six 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. 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 on these patent applications are estimated to expire in 2036. We have a pending U.S. application, with counterpart applications pending in other foreign countries, which relates to methods of treatment using filgotinib in additional indications. Any patents, if granted, based on these patent applications are estimated to expire in 2037. We additionally have rights in a pending application under the Patent Cooperation Treaty, or PCT, 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 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.

GLPG1690 product candidate: We have five issued U.S. patents relating to GLPG1690, two patents granted via the EPO, one pending U.S. patent application, and counterpart foreign patents and patent applications that are pending in Australia, Canada, Europe 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. We also have a pending U.S. application, as well as foreign counterpart applications, relating to methods for treating lung disorders using GLPG1690, any patents, if granted, based on this patent application are estimated to expire in 2038. We also have a pending application under the PCT relating to methods for treating lung disorders using combinations of GLPG1690 with other compounds. Any patents, if granted, based on this patent application are estimated to expire in 2039.

GLPG1205 product candidate: We have three U.S. patents, one pending U.S. patent application, one patent granted via the European Patent Office (EPO) and one application pending at the EPO. Counterpart foreign patents are also granted in Australia, Japan, and other countries, as well as foreign counterpart patent applications pending in Canada, and other foreign countries. These patents and patent applications claim GLPG1205 compositions of matter and methods of treatment using GLPG1205. The three issued U.S. patents, one 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 2032, not including any potential extensions for the marketed product that may be available via supplementary protection certificates or patent term extensions. We also have a pending application under the PCT claiming methods of treatment using GLPG1205 in further indications. Patents, if any, that issue based on this pending patent application are estimated to expire in 2038. We also have a pending application before the European Patent Office (EPO) relating to improved methods for treating lung disorders using GLPG1205. Any patents, if granted, based on this patent application are estimated to expire in 2041.

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GLPG2737 product candidate: We have rights in three issued U.S. patents, a pending U.S. patent application, as well as counterpart foreign patent applications that are granted in Europe, Japan, China, pending in Australia, Canada, Taiwan 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 under the PCT claiming 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 Japan, China and other countries. Counterpart foreign patent applications are also pending in India, 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.

GLPG3667 product candidate: We have a pending patent application under the PCT, as well as patent applications pending in Taiwan and other foreign countries claiming GLPG3667 compositions of matter and methods of treatment using GLPG3667. Patents, if any, that issue based on this pending 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 a pending application before the European Patent Office (EPO) relating to improved methods for treating inflammatory disorders using GLPG3667. Any patents, if granted, based on this patent application are estimated to expire in 2042.

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.

GLPG4059 product candidate: We have a pending patent application under the PCT, as well as patent applications pending in Taiwan and other foreign countries claiming GLPG4059 compositions of matter and methods of treatment using GLPG4059. Patents, if any, that issue based on these pending patent applications 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.

GLPG4399 product candidate: We have a pending patent application under the PCT, as well as patent applications pending in Taiwan 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 one pending UK patent application 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 and other countries, as well as counterpart foreign patent applications that are pending in Canada, Japan, 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. 

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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 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.

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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.”

Collaborations

We have entered into multiple collaboration agreements with pharmaceutical partners, which have generated €4,742.4 million ($5,819.6 million converted at EUR/USD closing rate on December 31, 2020) in cash through December 31, 2020 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 2019, Novartis terminated its alliance with us (together with MorphoSys), which became effective in June 2020. 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 upon 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, 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, we agreed with Gilead to further amend such agreement, as further described in ”Item 4 – Collaborations -- Exclusive collaboration agreement with Gilead for filgotinib.”

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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 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 will assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. Gilead will retain commercial rights and remain marketing authorization holder for filgotinib outside of Europe, including in Japan. 

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In connection with our entry into the collaboration agreement, 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 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 will enter 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 and will pay an additional €75 million in 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.

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 will be 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 will 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.

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, which we expect to end by December 31, 2021. Until such date, we continue 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. We expect that 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 percent of net sales in Europe to Gilead, starting in 2024.

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. 

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 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 Galapagos will jointly prepare the global commercialization strategy.The filgotinib agreement will expire (a) outside of the co-commercialization countries, on a country-by-country basis at the end of the royalty term in such country and (b) in each co-commercialization country, at such time as a generic product is first sold 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.

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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. If we undergo a change in control, Gilead has the right to terminate our right to co-commercialization rights, and disband all joint committees and undertake exclusive control of their activities; provided, that Gilead has no right to exercise such rights if we undergo a change in control with a drug company that has a market capitalization less than a certain percentage of our market capitalization.

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.

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. 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. 

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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, 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 when 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 risankizumab (Skyrizi), developed by AbbVie. Celgene/BMS has a new oral therapy in development: ozanimod (Zeposia), filed for approval in UC and in Phase 3 in CD. Pfizer’s Xeljanz was approved by the FDA for UC in 2018. Abbvie’s Rinvoq completed a Phase 3 trial in UC and is currently in a Phase 3 trial in CD. The large number of treatments for UC, and somewhat fewer for CD, presents a substantial level of competition for any new treatment entering the IBD market.

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), approved in 2017 by the FDA and in 2018 by the EC, upadacitinib (Rinvoq) is currently under regulatory review for PsA at 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) is the only approved drug to treat lupus and lupus nephritis, and help control disease activity. Anifrolumab from AstraZeneca has been filed at the FDA and EMA for use in SLE, and voclosporin from Aurinia is submitted for approval for worldwide use. BIIB059 from Biogen succesfully completed a Phase 2 trial, dapirolizumab pegol from UCB/Biogen and obinutuzumab (Gazyva) from Roche are in Phase 3. In terms of oral medication, baricitinib (Olumiant) is in Phase 3 for SLE, 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, there are six therapies approved by FDA and the EC: etanercept (Enbrel), infliximab (Remicade), adalimumab (Humira), golimumab (Simponi), certolizumab (Cimzia), and secukinumab (Cosentyx), with a seventh approved by FDA, ixekizumab (Taltz). Tofacitinib (Xeljanz) and upadacitinib (Rinvoq) are currently under regulatory review for approval in AS. Despite the availability of these treatments, a significant number of AS patients do not achieve low disease activity today.

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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 being developed by Merck KGaA. 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. Samumed is conducting a Phase 3 program with lorecivivint, an intra-articular approach aimed at the wnt pathway in OA joints. Sanofi acquired lixisenatide, a nanobody aimed at ADAMTS-5, but its status is unknown at the time of publication.

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 in IPF patients. Liminal Biosciences announced a Phase 2b trial start following Phase 2 results with fezagepras (PBI-4050) in IPF patients.

In the field of SSc, nintedanib from Boehringer-Ingelheim received approval by the FDA (2019) and the EC (2020) for use in patients with systemic sclerosis associated interstitial lung disease (SSc-ILD). According to the company, approximately 25% of SSc patients develop significant pulmonary involvement within three years of diagnosis. Pirfenidone from Roche is currently also under assessment in a Phase 2 trial in systemic sclerosis in combination with Mycophenolate. Brodalumab from Kyowa Kirin is currently tested in a Phase 3 trial in patients with systemic sclerosis.

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, venglustat from Sanofi/Genzyme and tesevatinib from Kadmon Corporation are in Phase 2 development. RGLS4326 from Regulus Therapeutics is currently being tested in a Phase 1b 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.

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; 

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

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· 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;

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

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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, 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.

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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.

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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.

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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.

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 in-depth 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.

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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.

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.

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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 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, 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.

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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 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:

o  a covered benefit under its health plan;
o  safe, effective and medically necessary;
o  appropriate for the specific patient;
o  cost-effective; and
o  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.

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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 federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, receiving, offering or paying remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, order, or recommendation of, an item or service reimbursable under a federal healthcare program, such as the Medicare and Medicaid programs;

·
federal civil and criminal false claims laws and civil monetary penalty laws, which prohibit, among other things, individuals or entities from knowingly presenting, or causing to be presented, claims for payment from Medicare, Medicaid, or other third-party payers that are false or fraudulent, or making a false statement or record material to payment of a false claim or avoiding, decreasing, or concealing an obligation to pay money to the federal government; in addition, the government may assert that a claim including items and services resulting from a violation of the U.S. federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the U.S. False Claims Act;

·
the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, and its implementing regulations, which created federal criminal statutes that prohibit executing a scheme to defraud any healthcare benefit program and making false statements relating to healthcare matters;

·
the federal transparency laws, including the provision of the Affordable Care Act commonly referred to as the federal Physician Payment Sunshine Act, that requires applicable manufacturers of covered drugs to disclose payments and other transfers of value provided 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 and physician ownership and investment interests;

· the Foreign Corrupt Practices Act, or FCPA, prohibits companies and their intermediaries from making, or offering or promising to make improper payments to non-U.S. officials for the purpose of obtaining or retaining business or otherwise seeking favorable treatment;

· HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act, or HITECH, and its implementing regulations, which imposes certain requirements relating to the privacy, security and transmission of individually identifiable health information; and

· state law and foreign jurisdiction equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payer, including commercial insurers, and state laws governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts.

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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. 

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.

The Affordable Care Act broadened the reach of the fraud and abuse laws by, among other things, amending the intent requirement of the federal Anti-Kickback Statute and the applicable criminal healthcare fraud statutes contained within 42 U.S.C. § 1320a‑7b. Pursuant to the statutory amendment, a person or entity no longer needs to have actual knowledge of this statute or specific intent to violate it in order to have committed a violation. In addition, the Affordable Care Act provides 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 civil False Claims Act or the civil monetary penalties statute. On December 2, 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 an order entered by the U.S. District Court for the District of Columbia, the portion of the rule eliminating safe harbor protection for certain rebates related to the sale or purchase of a pharmaceutical product from a manufacturer to a plan sponsor under Medicare Part D has been delayed to January 1, 2023. Further, implementation of this change and new safe harbors for point-of-sale reductions in price for prescription pharmaceutical products and pharmacy benefit manager service fees are currently under review by the Biden administration and may be amended or repealed.

The U.S. Federal False Claims Act prohibits anyone from, among other things, knowingly presenting, or causing to be presented, for payment to federal programs (including Medicare and Medicaid) claims for items or services that are false or fraudulent. Although we would not submit claims directly to payers, manufacturers can be held liable under these laws if they are deemed to “cause” the submission of false or fraudulent claims by, for example, providing inaccurate billing or coding information to customers or promoting a product off-label. In addition, our future activities relating to the reporting of wholesaler or estimated retail prices for our products, the reporting of prices used to calculate Medicaid rebate information and other information affecting federal, state, and third-party reimbursement for our products, and the sale and marketing of our products, are subject to scrutiny under this law. For example, pharmaceutical companies have been prosecuted under the federal False Claims Act in connection with their off-label promotion of drugs. Penalties for a False Claims Act violation include three times the actual damages sustained by the government, plus mandatory civil penalties, the potential for exclusion from participation in federal healthcare programs, and, although the federal False Claims Act is a civil statute, conduct that results in a False Claims Act violation may also implicate various federal criminal statutes. In addition, private individuals have the ability to bring actions under the federal False Claims Act and certain states have enacted laws modeled after the federal False Claims Act.

Patient Protection and Affordable Care Act

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.

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· 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.

· 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.

· The federal Physician Payment Sunshine Act, created under the Affordable Care Act, requires pharmaceutical manufacturers to track certain financial arrangements with physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors), physician assistants, nurse practitioners, clinical nurse specialists, certified registered nurse anesthetists and teaching hospitals, including any “transfer of value” made or distributed to such entities, as well as any ownership and investment interests held by physicians and their immediate family members. Manufacturers annually report this information to Centers for Medicaid and Medicare Services, or CMS, and the information is publicly available in a searchable format on a CMS website.

·
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 numerous judicial, administrative, executive, and legislative challenges to certain aspects of the ACA, and we expect there will be additional challenges and amendments to the ACA in the future. Various portions of the ACA are currently undergoing legal and constitutional challenges in the United States Supreme Court and members of Congress have introduced several pieces of legislation aimed at significantly revising or repealing the ACA. The United States Supreme Court is expected to rule on a legal challenge to the constitutionality of the ACA in early 2021. The implementation of the ACA is ongoing, the law appears likely to continue the downward pressure on pharmaceutical pricing, especially under the Medicare program, and may also increase our regulatory burdens and operating costs. Litigation and legislation related to the ACA are likely to continue, with unpredictable and uncertain results.

There have been several recent U.S. congressional inquiries, as well as proposed and adopted federal and state legislation designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs and biologics. The U.S. Department of Health and Human Services, or HHS, has already implemented certain measures. For example, in May 2019, CMS issued a final rule to allow Medicare Advantage Plans the option of using step therapy for Part B drugs beginning January 1, 2020. Further, the Biden administration may choose to challenge, reverse, revoke, or otherwise regulatory actions taken by the previous administration.

At the state level, legislatures are increasingly passing legislation and implementing regulations designed to control pharmaceutical and biological 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. In addition, regional health care authorities are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription drug and other health care programs. These measures could reduce the ultimate demand for our products, once approved, or put pressure on our product pricing. 

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European Union regulation

Brexit

The United Kingdom (UK) formally left the European Union (EU) on January 31, 2020 and became a third country. During a transition period from February 1, 2020 to December 31, 2020, EU pharmaceutical law continued to apply to the UK. From January 1, 2021, EU pharmaceutical law applies to the UK in respect of Northern Ireland only. As a consequence of Brexit, the EMA relocated from London to Amsterdam in March 2019. This is line with Regulation (EU) 2018/1718, which covers the EMA's location and seat. The EMA continued to operate in accordance with the timelines set by its rules and regulations throughout the Brexit process and its relocation.

As of January 1, 2021, EU pharmaceutical law as laid out in the ‘acquis communautaire’ applies to and in the UK in respect of Northern Ireland only, pursuant to the Northern Ireland Protocol. The Protocol forms part of the withdrawal agreement concluded by the EU and the UK that established the terms of the UK's withdrawal from the EU. Since the regulatory framework in the UK covering the quality, safety and efficacy of medicinal products, clinical trials, marketing authorization, commercial sales and distribution of medicinal products is derived from EU Directives and Regulations, Brexit could materially impact the future regulatory regime which applies to products and the approval of product candidates in the UK, as UK legislation now has the potential to diverge from EU legislation. It remains to be seen how Brexit will impact regulatory requirements for product candidates and products in the UK in the long-term. The MHRA, the UK medicines and medical devices regulator, has recently published detailed guidance for industry and organizations to follow from January 1, 2021 now the transition period is over, which will be updated as the UK’s regulatory position on medicinal products evolves over time.

Regulation in Europe

Product development, the regulatory approval process, and safety monitoring of medicinal products and their manufacturers in the European Union 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 European Union. In addition, drugs are subject to the extensive price and reimbursement regulations of the various European Union Member States.

Clinical trials

As is the case in the United States, the various phases of preclinical and clinical research in the European Union are subject to significant regulatory controls. The Clinical Trials Directive 2001/20/EC, as amended, provides a system for the approval of clinical trials in the European Union via implementation through national legislation of the Member States. Under this system, approval must be obtained from the national competent authorities of the European Union Member States in which the clinical trial is to be conducted. Furthermore, a clinical trial may only be started after a competent ethics committee has issued a favorable opinion on the clinical trial application, which must be supported by an investigational medicinal product dossier with supporting information prescribed by the Clinical Trials Directive and corresponding national laws of the Member States and further detailed in applicable guidance documents. A clinical trial may only be undertaken if provision has been made for insurance or indemnity to cover the liability of the investigator or sponsor. In certain countries, the sponsor of a clinical trial has a strict (faultless) liability for any (direct or indirect) damage suffered by trial subjects. The sponsor of a clinical trial, or its legal representative, must be based in the European Economic Area. European regulators and ethics committees also require the submission of adverse event reports during a study and a copy of the final study report.

The EU clinical trials legislation currently is undergoing a transition process mainly aimed at harmonizing and streamlining clinical-trial authorization, simplifying adverse-event reporting procedures, improving the supervision of clinical trials and increasing their transparency. In April 2014, the EU adopted a new Clinical Trials Regulation (EU) No 536/2014, which is set to replace the current Clinical Trials Directive 2001/20/EC. It is expected that the new Regulation will apply following confirmation of full functionality of the Clinical Trials Information System (CTIS), the centralized EU portal and database for clinical trials foreseen by the Regulation, through an independent audit, currently expected to occur in December 2021. The new Regulation will be directly applicable in all Member States (and so does not require national implementing legislation in each Member State), and aims at simplifying and streamlining the approval of clinical studies in the EU, for instance by providing for a streamlined application procedure via a single point and strictly defined deadlines for the assessment of clinical study applications.

Marketing approval

Marketing approvals under the European Economic Area (EEA) (comprising the EU Member States plus Norway, Iceland and Liechtenstein) 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 EEA.

Pursuant to Regulation (EC) No. 726/2004, as amended, the centralized procedure is mandatory for certain drugs, including those developed by means of specified biotechnological processes, advanced therapy medicinal products (gene therapy, somatic cell therapy, and tissue-engineered products), drugs for human use containing a new active substance for which the therapeutic indication is the treatment of specified diseases, including but not limited to acquired immune deficiency syndrome, cancer, diabetes, neurodegenerative disorders, auto-immune diseases and other immune dysfunctions, as well as drugs designated as orphan drugs. 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 Community level.  

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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.

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 MA application 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 EEA. 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 Irish 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 EEA. 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. 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 obtained—see also “—Orphan Drug 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.

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Additional rules apply to medicinal products for pediatric use under Regulation (EC) No. 1901/2006. Potential incentives include a six-month extension of any supplementary protection certificate granted pursuant to Regulation (EC) No. 469/2009, however, not in cases in which the relevant product is designated as an orphan medicinal product pursuant to Regulation (EC) No. 141/2000, as amended. Instead, medicinal products designated as orphan medicinal products may enjoy an extension of the ten-year market exclusivity period granted under Regulation (EC) No. 141/2000 to twelve years subject to the conditions applicable to orphan drugs.

Orphan drug regulation

In the EEA, Regulation (EC) No. 141/2000, as amended, states that a drug will be designated as an orphan drug 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 drug in the European Union 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 European Union or, if such method exists, that the drug 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 drug as an orphan drug. An application for the designation of a drug as an orphan drug must be submitted at any stage of development of the drug before filing of a marketing authorization application.

If an EEA-wide centralized marketing authorization in respect of an orphan drug is granted or if all the EEA 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 drug concerned, that the criteria for orphan drug 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 drug has given its consent to the second applicant;

·
the holder of the marketing authorization for the original orphan drug is unable to supply sufficient quantities of the drug; or

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

Other incentives available to orphan drugs in the European Union include financial incentives such as a reduction of fees or fee waivers and protocol assistance. Orphan drug designation does not 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 EEA 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 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. 

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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 drugs 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 European Union, 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. 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 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.

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.

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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.

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 European Union, 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 drugs 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 countries 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 drugs. Inclusion of orphan drugs in reimbursement systems tend to focus on the medical usefulness, need, quality and economic benefits to patients and the healthcare system as for any drug. 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.

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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
ADAMTS-5	ADAMTS-5 is a key enzyme involved in cartilage breakdown (Larkin 2015)
Adenovirus	A common virus that causes cold-like symptoms and is used as a research tool for the lab in the discovery of new drugs
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
Ankylosing spondylitis (AS)	AS is a systemic, chronic, and progressive spondyoloarthropathy primarily affecting the spine and sacroiliac joints, and progressing into severe inflammation that fuses the spine, leading to permanent painful stiffness of the back
Anti-TNF	Tumor necrosis factor. An anti-TNF drug acts by modulation of TNF
Assays	Laboratory tests to determine characteristics
Atopic dermatitis (AtD)	Also known as atopic eczema, atopic dermatitis is a common pruritis inflammatory condition affecting the skin, which most frequently starts in childhood
ATS	ATS, the American Thoracic Society improves global health by advancing research, patient care, and public health in pulmonary disease, critical illness, and sleep disorders

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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
Autotaxin (ATX)	An enzyme important for generating the signaling molecule lypophosphatidic acid (LPA). Ziritaxestat targets autotaxin for IPF and SSc
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
Bleomycin model	A preclinical model involving use of bleomycin (a cancer medication) to induce IPF symptoms
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
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)

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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
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
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
CRP	C-reactive protein is a protein found in the blood, the levels of which rise in response to inflammation
Cystic fibrosis (CF)	A life-threatening genetic disease that affects approximately 80,000 people worldwide. Although the disease affects the entire body, difficulty breathing is the most serious symptom as a result of clogging of the airways due to mucus build-up and frequent lung infections
Cytokine	A category of small proteins which play important roles in signaling in processes in the body
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
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

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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
DLCO	DLCO (diffusion capacity of the lung for carbon monoxide) is the extent to which oxygen passes from the air sacs of the lungs into the blood. This is measured in IPF patients
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
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
EQUATOR	A Phase 2 trial with filgotinib in psoriatic arthritis patients
Esbriet	An approved drug (pirfenidone) for IPF, marketed by Roche
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

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Fibrotic score	The Ashcroft fibrotic score involves measuring pulmonary fibrosis through examination of histopathology tissue
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 Europa and Japan. In the U.S. a CRL was received in RA. Application for approval for ulcerative colitis was filed in Europe. Filgotinib is partnered with Gilead. for the development and commercialization of filgotinib in a number of diseases. Filgotinib currently is in Phase 3 trials in CD
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
FLORA	A double-blind, placebo-controlled exploratory Phase 2a trial with ziritaxestat in up to 24 IPF patients; topline results were reported in August 2017
FORM 20-F	Form 20-F is an SEC filing submitted to the US Securities and Exchange Commission
FRI	Functional respiratory imaging is a technology which enhances 3D visualization and quantification of a patient’s airway and lung geometry
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
FVC	Forced vital capacity is the amount of air which can be forcibly exhaled from the lungs after taking the deepest breath possible. FVC is used to help determine both the presence and severity of lung diseases such as IPF
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/SIK3 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
GLPG1205	A GPR84 inhibitor discovered by us. We reported topline results in 2020 from the PINTA Phase 2 patient trial with GLPG1205 in IPF

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GLPG1690	Autotaxin inhibitor discovered by us and currently known as ziritaxestat. All development with ziritaxestat was discontinued in February 2021
GLPG1972/S201086	GLPG1972/S201086, also referred to as GLPG1972, is part of the OA collaboration with Servier. Galapagos and Servier reported there was no signal of activity in the ROCCELLA global Phase 2b trial with GLPG1972/S201086
GLPG2737	A compound currently in Phase 2 in PKCD. This compound is part of the CF collaboration with AbbVie but Galapagos regained rights outside of CF
GLPG3121	A compound currently in Phase 1 targeting JAK1/TYK2 directed toward inflammation
GLPG3312	A SIK1/SIK2/SIK3 inhibitor directed towards inflammation (IBD). Work on this molecule is discontinued
GLPG3667	A TYK2 kinase inhibitor discovered by us, currently in Phase 1b in psoriasis
GLPG3970	A SIK2/SIK3 inhibitor currently in multiple Phase 2 Proof of Concept studies. Currently the lead molecule in the Toledo program
GLPG4059	A compound currently in Phase 1 with undisclosed mode of action directed toward metabolic diseases
GLPG4399	A SIK3 inhibitor currently in the preclinical phase 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/SIK3 inhibitor in the preclinical phase, currently directed toward fibrosis
GLPG4716	A chitinase inhibitor inlicensed from OncoArendi, directed toward fibrosis
GLPG4876	A SIK2/SIK3 inhibitor in the preclinical phase, currently directed toward inflammation
GPR84 inhibitor	Drug candidate aimed at inhibiting or blocking G-protein coupled receptor 84. GLPG1205 is a GPR84 inhibitor aimed at IPF
G&A expenses	General & administrative expenses
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

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Inflammatory diseases	A large, unrelated group of disorders associated with abnormalities in inflammation
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
Inspiratory capacity	Total lung capacity or the amount of gas contained in the lung at the end of a maximal inhalation
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
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
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
ISABELA	Phase 3 clinical program investigating ziritaxestat in IPF patients. All development with ziritaxestat was discontinued in February 2021
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
LPA	Lysophosphatidic acid (LPA) is a signaling molecule involved in fibrosis
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

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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
MHLW	Japanese Ministry of Health, Labor and Welfare (MHLW), in charge of Japanese market authorization of new medications
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
NK cells	Natural killer cells, type of white blood cell with granules of enzymes which can attack tumors or viruses
NOVESA	A Phase 2 trial to evaluate ziritaxestat in systemic sclerosis (SSc). All development with ziritaxestat was discontinued in February 2021
Ofev	An approved drug (nintedanib) for IPF, marketed by Boehringer Ingelheim
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
Outsourcing	Contracting work to a third party
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

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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
PINTA	Phase 2 trial with GPR84 inhibitor GLPG1205 in IPF patients
Pivotal trials	Registrational clinical trials
Placebo-controlled	A substance having no pharmacological effect but administered as a control in testing a biologically active preparation
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

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Rheumatoid arthritis (RA)	A chronic, systemic inflammatory disease that causes joint inflammation, and usually leads to cartilage destruction, bone erosion and disability
ROCCELLA	Global Phase 2b trial, together with our collaboration partner Servier, with GLPG1972/S201086 (GLPG1972) in osteoarthritis (OA). In 2020, Galapagos and Servier reported that no signal of efficacy was found in the ROCCELLA trial, and have stopped further development of GLPG1972 in this indication
SEA TURTLE	Phase 2 program with GLPG3970 in ulcerative colitis
SEC	Securities and Exchange Commission in the US
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
SELECTION	Phase 3 program evaluating filgotinib in UC patients
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.
Systemic sclerosis (SSc)	Systemic sclerosis (SSc) or scleroderma is an autoimmune disease. One of the most visible manifestations is hardening of the skin. In diffuse cutaneous SSc, which has one of the highest mortality rates among rheumatic diseases, fibrosis occurs in multiple organs, such as the lung

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S&M expenses	Sales and marketing expenses
TAPINOMA	Phase 2 Proof of Concept trial with SIK2/SIK3 inhibitor GLPG3970 in SLE
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)
Uveitis	Uveitis is the term that refers to inflammation inside the eye. This inflammation can be caused by infection, autoimmune reaction, or by conditions confined primarily to the eye
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, 2020, we had 14 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
Fidelta d.o.o.	Croatia	100%
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%

In the course of 2020 we merged Galapagos Real Estate 2 BV with Galapagos Real Estate 1 BV, with the latter being the surviving entity whose company name changed into Galapagos Real Estate Belgium BV. Our dormant Swiss subsidiary, BioFocus DPI AG, was deconsolidated in 2020 and we executed the final actions for its liquidation  in 2020. In 2021, it still needs to be deregistered from the Swiss commercial register.

Per November 23, 2020 we signed a share purchase agreement for the sale of our subsidiary Fidelta d.o.o. (Zagreb, Croatia). On January 4, 2021 we closed the sale of our fee-for-service business Fidelta to Selvita S.A.

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, 2020 are set forth in the following table:

Facility location	Use	Approx. size (m2)	Lease expiry
Mechelen, Belgium (leased)	Headquarters, R&D, Operations	13,500	December 31, 2021(1)
Romainville, France (leased)	R&D	6,000	March 25, 2027
Leiden, the Netherlands (leased)	R&D	3,000	September 30, 2025
Zagreb, Croatia (leased)	Research Services	5,400	December 31, 2027(2)

(1)   With the exception of approximately 9,801 m² of laboratory, storage and office space, for which the lease expires on May 31, 2024.

(2)   On January 4, 2021, our Croatian affiliate Fidelta was sold. As a result of such sale, our group no longer has any Croatian facilities. 

In addition to the facilities listed in the table above, we also lease office space in Basel, Switzerland and Boston, United States. In addition, we use short-term co-working spaces in Madrid, Spain, London, UK, Paris, France, Milan, Italy, 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. We estimate that the total expenditures for the construction project in Leiden will amount to approximately €79 million.

In Belgium, we purchased land in Mechelen at the end of 2019 and are currently evaluating various building options. This exercise takes into account the impact of the Covid-19 pandemic on our future way-of-working and the corresponding need for office and laboratory space. Our current expenditures amount to approximately €22 million (including the purchase of the land). Our estimated total expenditures will depend on the outcome of the ongoing evaluation of various building options.

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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, addressing disease areas of high unmet medical need. Our pipeline comprises programs ranging from discovery to Phase 3 clinical trials in inflammation, fibrosis, and other indications. Our highly flexible discovery platform is applicable across many therapeutic areas. Our broad clinical pipeline includes: preferential JAK1 inhibitor filgotinib, which is approved for RA in Europe and Japan, filed for approval in UC in Europe, and currently in a Phase 3 trial in CD; GLPG1205, a GPR84 inhibitor which is in preparation for a Phase 2b trial in IPF after announcing positive topline results in the PINTA Phase 2 trial in 2020; GLPG4716, a chitinase inhibitor for our collaboration with OncoArendi, in preparation for a Phase 2 study in IPF; the Toledo molecule GLPG3970, a SIK2/3 inhibitor, in proof-of-concept trials in 5 indications. In both our inflammation and fibrosis portfolios we have multiple novel mechanism of action candidates in early research. Almost exclusively these programs are based on inhibiting targets which were identified using our proprietary 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 to clinical development and to our first commercial launch for filgotinib in the Benelux, France, Italy, Spain, United Kingdom and Germany with Gilead, and prepare for the transition to full responsibility for commercialization in Europe by the end of 2021. To date, we funded our operations through public and private placements of equity securities, upfront payments, milestone payments and royalties received from pharmaceutical partners under our collaboration and alliance 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 in 2014. From January 1, 2018 until December 31, 2020, we raised net proceeds from one U.S. public offering of American Depositary Shares (ADSs) in September 2018, and from the share subscription by Gilead in August 2019 and the exercise of warrant A by Gilead in November 2019. From January 1, 2018 until December 31, 2020 we also received €3,894.0 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 €34.2 million and €68.9 million, respectively. Over the same period, we also received €19.8 million in interest payments. As of December 31, 2020, we had cash and cash equivalents of €2,143.1 million (including €7.9 million in assets classified as held for sale) and current financial investments of €3,026.3 million.

For the year ended December 31, 2018, we incurred a net loss of €29.3 million. 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. 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 also expect these losses to increase due to higher costs for commercialization of Jyseleca, as we will have full responsibility for commercialization in Europe as from 2022.

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 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 clinical and preclinical programs and a proven drug discovery platform.

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The transaction was subject to certain closing conditions, including the expiration or termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act and receipt of merger control approval from the Austrian Federal Competition Authority. On August 23, 2019 all approvals were obtained and the transaction was closed.

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 November 6, 2019 Gilead exercised warrant A, which resulted in an additional equity investment of €368.0 million. We will use the proceeds to expand and accelerate our research and development programs. We identified the following three performance obligations: (i) the transfer of an extended license on GLPG1690 (ziritaxestat), (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 instruments triggered by the share subscription agreement and the warrants granted to Gilead. We refer to the note 6 of this annual report titled “Total revenues and other income” for the allocation of the transaction price received from Gilead.

Gilead also proposed two individuals for our board of directors, who 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 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. If GLPG1690 (ziritaxestat) 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.

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 will assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. We will thus have the sole right to commercialize filgotinib in Europe after a transition period which we expect to end by December 31, 2021. Until such date, we continue 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 will transfer 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. Gilead will retain commercial rights and remain marketing authorization holder for filgotinib outside of Europe, including in Japan.

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Beginning on January 1, 2021, we will 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 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 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 $20.0 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 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 and will pay an additional €75 million in 2021 and €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.  In addition, we recognized in 2020 €16.2 million ($19.5 million) of revenues for royalties on filgotinib from Gilead, of which $18.7 million (€15.6 million) was paid in December 2020.

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 on 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, or (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 of the closing of the subscription agreement, 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. Gilead further increased its ownership to 25.84% at December 31, 2019. Gilead’s ownership did not materially decrease during 2020, and Warrant A expired on 22 October 2020.

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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 Galapagos 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. As a result of such termination, rights to the GLPG1972 were returned to Galapagos, 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 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, pursuant to which MOR106 will be developed further for the treatment of AtD and potentially other indications

In addition to the funding of the current and future MOR106 programs by Novartis, 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.

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 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.

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.

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Financial operations overview

Revenue

Revenues to date have consisted principally of milestones, license fees, upfront payments and royalties received in connection with collaboration and license agreements. We also generated revenue from our fee-for-service activities.

The revenue recognition policy 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:

(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.

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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.

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 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 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.

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 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 2020, 25% of 13.5% of the investment value in 2019, or 29.58% of 13.5% of the investment value in 2018). 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.

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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 of fixed assets used to develop our product candidates; and

·
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, our Toledo program and other programs while stopping our activities on GLPG1690 (ziritaxtestat). Following the discontinuation of the development of GLPG1690, our portfolio is currently under review.

Since 2018, we cumulatively have spent €1,260.0 million on R&D activities for our continuing operations which can be split as follows between the key programs:

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)						Cumulative
Filgotinib program	€	(126,879)	€	(100,032)	€	(66,138)	€	(293,050)	23%
Ziritaxestat program		(55,902)		(75,951)		(72,718)		(204,572)	16%
OA program on GLPG1972		(22,966)		(19,958)		(15,751)		(58,675)	5%
Toledo program		(87,107)		(47,204)		(20,967)		(155,278)	12%
CF program		(69)		(3,897)		(30,137)		(34,102)	3%
AtD program on MOR106		(7,618)		(24,051)		(14,999)		(46,667)	4%
Other programs		(223,126)		(148,997)		(95,512)		(467,635)	37%
Total R&D expenses	€	(523,667)	€	(420,090)	€	(316,222)	€	(1,259,979)	100%

Other programs comprise expenditure for other projects in research phase primarily focused on inflammation and fibrosis, and other early stage development programs.

The increase in our R&D expenditure is driven by the maturing pipeline of our R&D projects. As progressively, product candidate compounds have been entering the clinic, costs for development of these molecules increased as well, specifically with regard to third-party CRO costs for conducting these clinical trials.

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Sales and marketing expenses

Sales and marketing expenses include costs associated with managing our commercial activities, the preparation of our commercial activities, and co-promotion activities with Gilead for Jyseleca in the Benelux, France, Italy, Spain, United Kingdom and Germany.

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. Professional fees reported under general and administrative expenses mainly include legal fees, accounting fees, audit fees, 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, insurance costs, office expenses, and travel costs.

We expect our general and administrative expenses to stabilize. We expect to incur increased costs for directors’ and officers’ liability insurance.

Fair Value Re-measurement of Share Subscription Agreement and warrants

In 2020 we reported a non-cash fair value gain of €3.0 million from the re-measurement of the Gilead initial warrant B. 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 was 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 reflected 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 is 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 in 2019 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.

As initial warrant B is not yet exercised by Gilead per December 31, 2020, we re-measured the financial liability relating to this warrant on December 31, 2019 and on December 31, 2020 and recognized the resulting change in fair value between the approval and year-end 2019 and between year-end 2019 and year-end 2020 in profit or loss. The recognized fair value loss of €3.7 million in 2019 and recognized fair value gain of €3.0 million in 2020 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 two periods. On December 31, 2020, the fair value of the financial liability related to the initial warrant B amounts to €3.2 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 short-term, interest-bearing deposit accounts, notice accounts and in current financial investments.

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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. 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 the treasury bills which have not yet expired and the effect of the re-measurement at fair value of our money market funds. 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 IFRS 15, 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, 2020, currency exchange loss was primarily due to currency exchange rate differences on our cash held in foreign currency. On December 31, 2020 our cash and cash equivalents and current financial investments included $1,418.4 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, 2020, except for four subsidiaries working on a cost plus basis for which deferred tax assets were set up for an amount of €4.5 million as of December 31, 2020. 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%.

Operating segments

The group had two reportable segments: R&D and fee-for-service business. Due to the disposal of Fidelta d.o.o. (our fee-for-service segment) completed on January 4, 2021, we reported this segment as discontinued operations. Galapagos therefore operates as a single operating segment.

Financial information related to our operational segments 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, 2019 and for the annual period beginning on January 1, 2020

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, 2020 and 2019

The following table summarizes the results of our operations for the years ended December 31, 2020 and 2019, together with the changes to those items.

	Year ended December 31,
	2020		2019 (*)		% Change
		(Euro, in thousands, except per share data)
Revenues	€	478,053	€	834,901	(43%)
Other income		52,207		50,896	3%
Total revenues and other income		530,260		885,797	(40%)
Research and development expenses		(523,667)		(420,090)	25%
Sales and marketing expenses		(66,468)		(24,577)	170%
General and administrative expenses		(118,757)		(72,382)	64%
Total operating expenses		(708,892)		(517,049)	37%
Operating income/loss (-)		(178,632)		368,748	(148%)
Fair value re-measurement of share subscription agreement and warrants		3,034		(181,644)	(102%)
Other financial income		18,667		21,389	(13%)
Other financial expenses		(152,844)		(59,968)	155%
Income/loss (-) before tax		(309,775)		148,525	(309%)
Income taxes		(1,226)		165	(845%)
Net income/loss (-) from continuing operations		(311,001)		148,689	(309%)
Net income from discontinued operations, net of tax		5,565		1,156	381%
Net income/loss (-)	€	(305,436)		149,845	(304%)
Net income/loss (-) attributable to:
Owners of the parent		(305,436)		149,845
Basic income/loss (-) per share	€	(4.69)	€	2.60
Diluted income/loss (-) per share	€	(4.69)	€	2.49
Basic income/loss (-) per share from continuing operations	€	(4.78)	€	2.58
Diluted income/loss (-) per share from continuing operations	€	(4.78)	€	2.47

(*) The 2019 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

Revenues

	Year ended December 31,
	2020		2019		% Change
		(Euro, in thousands)
Recognition of non-refundable upfront payments and license fees	€	411,417	€	812,058	(49%)
Milestone payments		46,261		2,878	1508%
Reimbursement income		4,073		19,900	(80%)
Other revenues		70		66	6%
Commercial revenues		16,232		—	-
Total revenues	€	478,053	€	834,901	(43%)

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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. We refer to note 2 of our consolidated financial statements ‘Summary of significant transaction’ for more detailed information.

As part of this deal, our existing license and collaboration agreement for filgotinib with Gilead was amended for the 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 the new arrangement, we will assume sole responsibility  in Europe for filgotinib in RA and in all future indications.

We still 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 in 2019 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 modification of December 15, 2020 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. As a consequence, the increase in the transaction price of €160.0 million as a result of this modification has been allocated in its entirety to the filgotinib performance obligation.

Financing component

·
There are two performance obligations determined in the agreement with Gilead for which the period between the transfer of the promised goods/services to Gilead and the payment of the underlying consideration by Gilead exceeds one year, being the performance obligation relating to the drug discovery platform and the performance obligation resulting from the filgotinib amendment. Although the consideration paid for the drug discovery platform will be recognized over a period of 10 years as from receipt of the funds, management concluded not to consider any financing component for this performance obligation, as the granting of an exclusive access and option rights on day one is the predominant value of the drug discovery platform performance obligation. As a consequence, management considered it only 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.

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License on GLPG1690

· The transaction price allocated to this performance obligation reflects our assessment of the stand-alone selling price of this performance obligation and was valued based on a discounted cash flow approach including, amongst others, assumptions on the estimated market share and size, peak sales and probability of success.

· This performance obligation was completely satisfied on December 31, 2019. Following the very recent discontinuation of the GLPG1690 trials, we don’t 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 is 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 standalone selling price of the filgotinib amendment was determined through the cost-plus-margin approach. Management estimated that an appropriate margin is indirectly embedded in the increased involvement in the development and global strategy of filgotinib, our sole responsibility for filgotinib in Europe and the accompanying increase in the risk.

· 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. 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 we reported €16.2 million of revenues from royalties.

· 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 were reassessed as a result of the contract modification from 2020 leading to a small decrease in the percentage of completion. Nevertheless, we recognized higher revenues in financial year 2020 as compared to financial year 2019 for filgotinib because the total transaction price increased due to the contract modification (€160.0 million) and the milestone payments obtained in 2020 for the regulatory approval of filgotinib for RA in Europe and Japan for a total amount of $105 million (€90.2 million)

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 that 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, 2020.

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The below table summarizes the transaction price of our collaboration with Gilead.  

							(Euro, in thousands)
Allocation of transaction price		Filgotinib agreement 2015		Milestones achieved during 2015-2019		Option, License and Collaboration agreement (July 14, 2019)		December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020
Upfront consideration	€	275,558			€	3,569,815	€	3,845,373			€	160,000	€	4,005,373
Milestones achieved			€	104,171				104,171	€	90,192				194,363
Royalties								—		16,227				16,227
Impact initial valuation of share subscription		39,003				85,601		124,604						124,604
		314,561		104,171		3,655,416		4,074,148		106,419		160,000		4,340,567
Less :
Warrants issuance liabilities
Warrant A								(43,311)						(43,311)
Initial warrant B								(2,545)						(2,545)
Subsequent warrant B								(16,184)		8,325				(7,859)
		314,561		104,171		3,655,416		4,012,108		114,744		160,000		4,286,852
Allocation to performance obligations
Ziritaxestat						666,967		666,967						666,967
Filgotinib (1)	€	314,561	€	104,171		641,663		1,060,395		106,419		160,000		1,326,814
Drug discovery platform (10 years)					€	2,284,747	€	2,284,747	€	8,325			€	2,293,072

(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.

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 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 will be 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 initially allocated to the subsequent warrant B reflects the fair value of the underlying liability at December 31, 2019 since this warrant is not yet approved for issuance.

On December 15, 2020 we and Gilead signed a term sheet modifying our existing collaboration for filgotinib. As a result of this modification an additional consideration of €160.0 million was allocated to the filgonitib performance obligation.

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The following table summarizes details of revenues from our continuing operations for the years ended December 31, 2020 and 2019 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, other revenues and commercial revenues.

	Over time	Point in time		2020		2019
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	411,417	€	812,058
Gilead collaboration agreement for ziritaxestat		√		-		666,968
Gilead collaboration agreement for filgotinib (1)	√			181,816		62,602
Gilead collaboration agreement for drug discovery platform	√			229,601		80,918
AbbVie collaboration agreement for CF	√			-		1,569
Milestone payments				46,261		2,878
Gilead collaboration agreement for filgotinib (1)	√			46,261		(21,187)
AbbVie collaboration agreement for CF	√			-		24,065
Reimbursement income				4,073		19,900
Novartis collaboration agreement for MOR106	√			4,125		19,177
AbbVie collaboration agreement for CF	√			(52)		723
Other revenues				70		66
Other revenues		√		70		66
Commercial revenues				16,232		-
Sale of goods		√		2
Royalties		√		16,227
Other commercial revenues		√		2
Total revenues			€	478,053	€	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.

Recognition of non-refundable upfront payments and licence fees decreased mainly due to the one time recognition in 2019 of €667.0 million of the upfront payment from Gilead allocated to the ziritaxestat program. We recognize the consideration from Gilead allocated to the drug discovery platform on a linear basis over 10 years, of which we recognized €229.6 million in 2020. We also recognized in revenue €181.8 million of the total upfront consideration allocated to filgotinib based on the stage of completion of our performance obligation (taking into consideration €160 million of additional consideration from Gilead following the contract modification agreed in December 2020).

The recognition of milestone payments related to the filgotinib performance obligation increased, as the figures of 2019 included a negative catch-up effect from the recalculation of the percentage of completion following the amended collaboration in 2019. Additionally, we obtained in 2020 milestone payments for the regulatory approval of filgotinib in Europe and Japan ($105 million, €90.2 million), which were partly recognized in revenue in 2020 in accordance with the stage of completion of our performance obligation.

Additionally, for the year ended December 31, 2020, we recognized in revenue €16.2 million of royalties from Gilead on filgotinib.

The outstanding balance of deferred income from the Gilead collaboration agreement at December 31, 2020 amounted to €2,809.1 million. This is composed of €818.7 million for filgotinib that is recognized in revenue over the estimated remaining development period and €1,990.4 million for the exclusive access to our drug discovery platform. The latter is composed of €1,982.5 million that will be linearly recognized over the remaining 9 years and €7.9 million related to the warrant issuance liability reserved for the Gilead subsequent warrant B.

Reimbursement income decreased due to lower cost reimbursements in relation with the MOR106 program with Novartis and MorphoSys as a consequence of the discontinuation of this program.

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Other income

The following table summarizes our other income for the years ended December 31, 2020 and 2019, together with the changes to those items.

	Year ended December 31,
	2020		2019		% Change
	(Euro, in thousands)
Grant income	€	5,452	€	6,549	(17%)
R&D incentives		45,951		43,923	5%
Other income		804		425	89%
Total other income	€	52,207	€	50,896	3%

The majority of the grant income was related to grants from a Flemish agency and the national government, representing approximately 99% of all reported grant income in 2020 (2019: 99%).

The grant income mainly comprises a grant received in 2020 from the National Institute for Health and Disability Insurance amounting to €5.0 million (2019: €5.5 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 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, 2020 compared to €12.4 million for the year ended December 31, 2019

· Income from Belgian R&D incentives with regard to incurred R&D expenses, which represented €21.7 million of other income for the year ended December 31, 2020 compared to €21.7 million for the year ended December 31, 2019

· Tax rebates on payroll withholding taxes of R&D personnel in Belgium and the Netherlands, representing €11.9 million of other income for the year ended December 31, 2020 compared to €9.9 million for the year ended December 31, 2019

R&D expenditure

The following table summarizes our R&D expenditure for the years ended December 31, 2020 and 2019, together with the changes to those items.

	Year ended December 31,
	2020		2019		% Change
		(Euro, in thousands)
Personnel costs	€	(161,509)	€	(118,875)	36%
Subcontracting		(301,841)		(255,725)	18%
Disposables and lab fees and premises costs		(22,349)		(19,573)	14%
Depreciation		(11,707)		(9,330)	25%
Professional fees		(12,692)		(1,834)	592%
Other operating expenses		(13,570)		(14,753)	(8%)
Total R&D expenses	€	(523,667)	€	(420,090)	25%

The R&D expenditure increased reflecting the increase of our investments to advance our R&D programs. This increase was principally due to:

· Increased R&D personnel costs was explained by an enlarged workforce following the growth in our R&D activities as well as increased costs of the subscription right plans.

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· The increase in subcontracting costs was mainly due to increased expenditure in our partnered programs with Gilead, including our increased cost share for filgotinib. Moreover expenditures have further increased as we advance  our Toledo program and our other programs.

· Professional fees increased due to the implementation of new software applications.

The table below summarizes our R&D expenditure for the years ended December 31, 2020 and 2019, broken down by program.

	Year ended December 31,
	2020		2019		% Change
	(Euro, in thousands)
Filgotinib program	€	(126,879)	€	(100,032)		27%
Ziritaxestat program		(55,902)		(75,951)		(26%)
OA program on GLPG1972		(22,966)		(19,958)		15%
Toledo program		(87,107)		(47,204)		85%
CF program		(69)		(3,897)		(98%)
AtD program on MOR106		(7,618)		(24,051)		(68%)
Other programs		(223,126)		(148,997)		50%
Total R&D expenses	€	(523,667)	€	(420,090)		25%

Other programs comprise expenditure for other projects in research phase primarily focused on inflammation and fibrosis, and other early stage development programs.

Sales and marketing expenses

The following table summarizes our sales and marketing expenses for the years ended December 31, 2020 and 2019, together with the changes to those items.

	Year ended December 31,
	2020		2019		% Change
		(Euro, in thousands)
Personnel costs	€	(31,727)	€	(7,558)	320%
Depreciation		(140)		(61)	130%
External outsourcing costs		(27,174)		(15,721)	73%
Professional fees		(3,420)		(459)	644%
Other operating expenses		(4,007)		(777)	416%
Total sales and marketing expenses	€	(66,468)	€	(24,577)	170%

The increase in our sales and marketing expenses in 2020 is mainly due to the preparation of the commercial launch for Jyseleca, and is primarily explained by an increase in personnel costs due to recruitments and increased costs of our subscription right plans, as well as related increase in outsourcing costs. The latter was mainly due to additional costs incurred relating to our co-promotion activities with Gilead for filgotinib.

General and administrative expenses

The following table summarizes our general and administrative expenses for the years ended December 31, 2020 and 2019, together with the changes to those items.

	Year ended December 31,
	2020		2019		% Change
		(Euro, in thousands)
Personnel costs	€	(70,110)	€	(51,204)	37%
Depreciation		(5,147)		(1,421)	262%
Legal and professional fees		(25,592)		(11,568)	121%
Other operating expenses		(17,908)		(8,190)	119%
Total general and administrative expenses	€	(118,757)	€	(72,382)	64%

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The increase in our general and administrative expenses was mainly due to a planned increase in the staff supporting the growth of the company, higher costs related to subscription right plans and additional costs for legal and professional fees as well as other operating expenses.

Fair value re-measurement of share subscription agreement and warrants granted to Gilead

Total fair value re-measurement for the years ended December 31, 2020 and 2019 can be split up as follows:

		Year ended December 31,
	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		3,034		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	3,034	€	(181,644)

Gilead share subscription agreement

On August 23, 2019, the closing date of the contract, Gilead made a €960.1 million equity investment in Galapagos NV by subscribing to 6,828,985 new ordinary shares at a price of €140.59 per share, including issuance premium. The equity subscription was accounted for as a financial asset at signing date of the contract on July 14, 2019 and changes in fair value were recorded through profit or loss until closing date, when the financial liability was derecognized.

We recognized a fair value loss of €142.4 million for the year ended December 31, 2019, which 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.

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	€	—

Gilead warrants A and B

We measured the warrants (warrant A and initial and subsequent warrant B) at fair value and recognized a warrant issuance liability at closing date of the transaction. Upon approval of the issuance of warrant A and 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.

Warrant A was valued using a standard option model (Black & Scholes Merton). 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, applied discount for lack of marketability). On November 6, 2019 Gilead exercised warrant A and as such increased its ownership in Galapagos to 25.10% of the then outstanding shares. Between the warrant approval date and the exercise of warrant A our share price increased significantly, resulting in a fair value loss of €35.6 million recognized in profit or loss in 2019. On November 6, 2019 the related financial liability, amounting to €79.0 million was derecognized through the share premium account in equity.

              Management assessed that the financial liability relating to this warrant A had no remaining fair value on December 31, 2019 mainly because Gilead further increased its ownership to 25.84% at December 31, 2019. Gilead’s ownership did not materially decrease during 2020 and warrant A expired on October 22, 2020.

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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	€	—

The issuance of initial warrant B was approved on October 22, 2019 by the extraordinary general meeting of shareholders and was not yet exercised by Gilead at December 31, 2020. The fair value measurement of this financial liability is categorized as level 3 in the fair value hierarchy. Initial warrant B was 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 the decrease  of our share price in 2020, partly compensated by an increase in the implied volatility. The fair value of the financial liability related to the Gilead initial warrant B of €3.2 million on December 31, 2020 (€6.2 million at December 31, 2019) is presented as current financial instrument in our consolidated statement of financial position and will be re-measured at each reporting period.

Fair value re-measurement of the financial instrument related to the issuance of initial warrant B

	2020		2019
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(6,198)
Fair value of financial liability at warrant approval date			€	(2,545)
Change in fair value recorded in profit or loss		3,034		(3,653)
Fair value on December 31,	€	(3,164)	€	(6,198)

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 24 for more information). 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, 2020 and 2019.

	Year ended December 31,
	2020		2019		% Change
		(Euro, in thousands)
Other financial income:
Interest income	€	10,030	€	14,305	(30%)
Effect of discounting long term R&D incentives receivables		93		93	-
Currency exchange gain		4,697		775	506%
Fair value gain on financial assets held at fair value through profit or loss		2,397		5,355	(55%)
Fair value gain on current financial investments				611	(100%)
Gain upon sale of financial assets held at fair value through profit or loss				2	(100%)
Other finance income		1,450		248	485%
Total other financial income		18,667		21,389	(13%)
Other financial expenses:
Interest expenses		(9,389)		(1,268)	640%
Effect of discounting long term deferred income		(16,278)		(6,900)	136%
Currency exchange loss		(110,416)		(47,720)	131%
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)	330%
Other finance charges		(773)		(380)	103%
Total other financial expense		(152,844)		(59,968)	155%
Total net other financial expense	€	(134,177)	€	(38,579)	248%

The currency exchange loss in 2020 primarily consisted of an unrealized exchange loss of €106.4 million on deposits and current financial investments held in U.S. dollars, as compared to a realized currency exchange loss in 2019 of €34.9 million on the U.S. dollars upfront payment from Gilead and an unrealized exchange loss in 2019 of €10.6 million on deposits and current financial investments held in U.S. dollars. 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 loss amounted to €105.7 million for the year ended December 31, 2020, compared to a net currency exchange loss of €46.9 million for the year ended December 31, 2019.

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 2020 also included €16.3 million of costs (€6.9 million for the year ended December 31, 2019) 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, 2020, fair value gain on financial assets held at fair value through profit or loss consisted of positive 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. The fair values loss on the current financial investments reflects the interest on treasury bills which have not yet expired and the effect of the re-measurement at fair value of our money market funds on December 31, 2020. These fair value 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.”

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Income Taxes

The following table summarizes our tax result for the years ended December 31, 2020 and 2019.

	Year ended December 31,
	2020		2019
		(Euro, in thousands)
Current tax	€	(1,069)	€	(1,372)
Deferred tax		(157)		1,537
Income taxes	€	(1,226)	€	165

Current tax, consisting of corporate income taxes, and deferred tax income/cost (-)  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

The following table summarizes our results from discontinued operations for the years ended December 31, 2020 and 2019.

	Year ended December 31,
	2020		2019
	(Euro, in thousands, except share and per share data)
Revenues	€	16,140	€	10,084
Other income		—		8
Total revenues and other income		16,140		10,092
Research and development expenses		(7,685)		(7,229)
General and administrative expenses		(2,000)		(1,319)
Total operating expenses		(9,685)		(8,548)
Operating income		6,455		1,544
Other financial income		179		93
Other financial expenses		(176)		(102)
Income before tax		6,458		1,535
Income taxes		(893)		(379)
Net income	€	5,565	€	1,156
Basic income per share from discontinued operations	€	0.09	€	0.02
Diluted income per share from discontinued operations	€	0.08	€	0.02
Weighted average number of shares (in thousands of shares)		65,075		57,614
Weighted average number of shares - Diluted (in thousands of shares)		67,572		60,112

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 fee-for-service segment).

The transaction was completed on January 4, 2021 for a total consideration of €37.1 million (including the customary adjustments for cash and working capital).

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As we expect to continue to purchase services from Fidelta d.o.o. after the closing of the transaction, we have eliminated the intragroup revenue and cost in discontinued operations. Revenues from discontinued operations amounted to €16.1 million in 2020 which showed a strong increase compared to the revenues in 2019. R&D expenses and general and administrative expenses showed a slight increase compared to the operating costs in 2019, following the growth of the service division.

Fidelta will continue performing drug discovery services for us for the next five years, for which we have purchase commitments for an aggregate amount of €27.0 million.

Comparison of years ended December 31, 2019 and 2018

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 fee-for-service segment). As such we classified the result of Fidelta as discontinued operations in our financial statements for the year ended December 31, 2019 and 2018.

The following table summarizes the results of our operations for the years ended December 31, 2019 and 2018, together with the changes to those items.

	Year Ended December 31,
	2019 (*)		2018 (*)		% Change
		(Euro, in thousands, except share and per share data)
Revenues	€	834,901	€	278,666	200%
Other income		50,896		29,000	76%
Total revenues and other income		885,797		307,666	188%
Research and development expenses		(420,090)		(316,222)	33%
Sales and marketing expenses		(24,577)		(4,146)	493%
General and administrative expenses		(72,382)		(34,377)	111%
Total operating expenses		(517,049)		(354,746)	46%
Operating income/loss (-)		368,748		(47,080)	883%
Fair value re-measurement of share subscription agreement and warrants		(181,644)		—
Other financial income		21,389		18,264	17%
Other financial expenses		(59,968)		(2,602)	2205%
Income/loss (-) before tax		148,525		(31,417)	573%
Income taxes		165		(822)	(120%)
Net income/loss (-) from continuing operations		148,689		(32,240)	561%
Net income from discontinued operations, net of tax		1,156		2,981	(61%)
Net income/loss (-)	€	149,845	€	(29,259)	612%
Net income/loss (-) attributable to:
Owners of the parent		149,845		(29,259)
Basic income/loss (-) per share	€	2.60	€	(0.56)
Diluted income/loss (-) per share	€	2.49	€	(0.56)
Basic income/loss (-) per share from continuing operations	€	2.58	€	(0.62)
Diluted income/loss (-) per share from continuing operations	€	2.47	€	(0.62)

(*) The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

134

Continuing operations

Revenues

	Year ended December 31,
	2019		2018		% Change
		(Euro, in thousands)
Recognition of non-refundable upfront payments and license fees	€	812,058	€	196,486	313%
Milestone payments		2,878		73,394	(96%)
Reimbursement income		19,900		8,722	128%
Other revenues		66		63	5%
Total revenues	€	834,901	€	278,666	200%

We refer to our comparison of the years ended December 31,2020 and December 31, 2019, for a summary of the accounting treatment of the Gilead collaboration.

The following table summarizes details of revenues from our continuing operations for the years ended December 31, 2019 and 2018 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, and other revenues.

	Over time	Point in time		2019		2018
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	812,058	€	196,486
Gilead collaboration agreement for ziritaxestat		√		666,968		-
Gilead collaboration agreement for filgotinib (1)	√			62,602		96,809
Gilead collaboration agreement for drug discovery platform	√			80,918		-
AbbVie collaboration agreement for CF	√			1,569		52,176
Novartis collaboration agreement for MOR106		√		-		47,500
Milestone payments				2,878		73,394
Gilead collaboration agreement for filgotinib (1)	√			(21,187)		27,623
AbbVie collaboration agreement for CF	√			24,065		36,771
Servier collaboration agreement for osteoarthritis		√		-		9,000
Reimbursement income				19,900		8,722
Novartis collaboration agreement for MOR106	√			19,177		7,718
AbbVie collaboration agreement for CF	√			723		989
Other reimbursement income				-		16
Other revenues				66		63
Other revenues				66		63
Total revenues			€	834,901	€	278,666
(1) Following the contract amendment, the revenue recognized for filgotinib for the year ended 31 December 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.

         Recognition of non-refundable upfront payments and licence fees increased mainly due to the one time recognition of €667.0 million of the upfront payment from Gilead allocated to the IPF program on GLPG1690 (ziritaxestat). We recognize the consideration from Gilead allocated to the drug discovery platform on a linear basis over 10 years, of which we already recognized €80.9 million in 2019. Finally, considering the recalculated percentage of completion of the costs incurred compared to the increased, joint pre-determined level of costs, and related catch-up effect for the previously received upfront due to the revised filgotinib collaboration agreement in 2019, we recognized in revenue €62.6 million of the total upfront consideration allocated to filgotinib.

135

         The recalculated percentage of completion and related catch-up effect at closing of the transaction, for the previously received milestones payments due to the revised filgotinib collaboration agreement negatively affected the over time revenue recognition of the milestones for the year ended December 31, 2019. This was partially offset by a milestone received from AbbVie for the Falcon study fully recognized in revenue in the year ended December 31, 2019.

The outstanding balance of deferred income from the Gilead collaboration agreement on December 31, 2019 amounted to €3,000.3 million. This was composed of €780.3 million for filgotinib that will be recognized in revenue over the next 4 to 5 years and €2,220.0 million for the exclusive access to our drug discovery platform. The latter was composed of €2,203.8 million that will be linearly recognized over the next 10 years and €16.2 million was related to the warrant issuance liability reserved for the subsequent warrant B.

Reimbursement income increased due to higher cost reimbursements in relation with the MOR106 program with Novartis and MorphoSys.

Other income

The following table summarizes the other income of our continuing operations for the years ended December 31, 2019 and 2018, together with the changes to those items.

	Year ended December 31,
	2019		2018		% Change
		(Euro, in thousands)
Grant income	€	6,549	€	1,609	307%
R&D incentives		43,923		26,912	63%
Other income		425		479	(11%)
Total other income	€	50,896	€	29,000	76%

The majority of the grant income was related to grants from a Flemish agency and the national government, representing approximately 99% of all reported grant income in 2019 (2018: 95%).

The grant income mainly increased due to a grant received in 2019 from the National Institute for Health and Disability Insurance amounting to €5.5 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 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, 2019 compared to €9.3 million for the year ended December 31, 2018

· Income from Belgian R&D incentives with regard to incurred R&D expenses, which represented €21.7 million of other income for the year ended December 31, 2019 compared to €11.3 million for the year ended December 31, 2018

· Tax rebates on payroll withholding taxes of R&D personnel in Belgium and the Netherlands, representing €9.9 million of other income for the year ended December 31, 2019 compared to €6.3 million for the year ended December 31, 2018

R&D expenditure

The following table summarizes the R&D expenditure of our continuing operations for the years ended December 31, 2019 and 2018, together with the changes to those items. 

136

	Year ended December 31,
	2019		2018		% Change
		(Euro, in thousands)
Personnel costs	€	(118,875)	€	(75,819)	57%
Subcontracting		(255,725)		(203,406)	26%
Disposables and lab fees and premises costs		(19,573)		(20,967)	(7%)
Depreciation		(9,330)		(4,846)	93%
Professional fees		(1,834)		(262)	600%
Other operating expenses		(14,753)		(10,922)	35%
Total R&D expenses	€	(420,090)	€	(316,222)	33%

The R&D expenditure increased reflecting the increase of our investments to advance our R&D programs. This increase was principally due to:

· Increased R&D personnel costs was explained by an enlarged workforce following the growth in our R&D activities as well as an exceptional bonus following the successful closing of the Gilead transaction.

· The increase in subcontracting costs was mainly due to increased expenditure in our partnered programs with Gilead, including our increased cost share for filgotinib. Moreover expenditures have further increased as we were advancing our IPF program, our OA program GLPG1972, our Toledo program and our other programs.

· Premises costs decreased and depreciation expenses increased due to the accounting treatment related to the adoption of IFRS 16 (effect of IFRS 16 on depreciation expenses amounted to €5.3 million).

· Other operating expenses increased in line with the increase of the R&D staff.

The table below summarizes our R&D expenditure for the years ended December 31, 2019 and 2018, broken down by program.

	Year Ended December 31,
	2019		2018		% Change
		(Euro, in thousands)
Filgotinib program	€	(100,032)	€	(66,138)		51%
CF program		(75,951)		(72,718)		4%
Ziritaxestat program		(19,958)		(15,751)		27%
OA program on GLPG1972		(47,204)		(20,967)		125%
AtD program on MOR106		(3,897)		(30,137)		(87%)
Toledo program		(24,051)		(14,999)		60%
Other programs		(148,997)		(95,512)		56%
Total R&D expenses	€	(420,090)	€	(316,222)		33%

Other programs comprise expenditure for other projects in research phase primarily focused on inflammation and fibrosis, and other early stage development programs.

Sales and marketing expenses

The following table summarizes our sales and marketing expenses for the years ended December 31, 2019 and 2018, together with the changes to those items.

	Year ended December 31,
	2019		2018		% Change
		(Euro, in thousands)
Personnel costs	€	(7,558)	€	(2,282)	231%
Depreciation		(61)		—
External outsourcing costs		(15,721)		(1,284)	1125%
Professional fees		(459)		—
Other operating expenses		(777)		(580)	34%
Total sales and marketing expenses	€	(24,577)	€	(4,146)	493%

137

         The increase in our sales and marketing expenses in 2019 was mainly explained by an increase in personnel costs due to recruitments, as well as related increase in outsourcing costs. The latter was mainly due to €8.2 million of expenses relating to our 50/50 cost share mechanism with Gilead for expenses incurred in preparation for the co-promotion activities for filgotinib.

General and administrative expenses

The following table summarizes our general and administrative expenses for the years ended December 31, 2019 and 2018, together with the changes to those items.

	Year ended December 31,
	2019		2018		% Change
		(Euro, in thousands)
Personnel costs	€	(51,204)	€	(24,740)	107%
Depreciation		(1,421)		(449)	216%
Legal and professional fees		(11,568)		(4,026)	187%
Other operating expenses		(8,190)		(5,162)	59%
Total general and administrative expenses	€	(72,382)	€	(34,377)	111%

The increase in our general and administrative expenses was mainly due to a planned increase in the staff supporting the growth of the company. as well as an exceptional bonus following the successful closing of the Gilead transaction, costs related to RSU plans granted in 2019, and additional legal and professional fees.

Fair value re-measurement of share subscription agreement and warrants granted to Gilead

Total fair value re-measurement for the year ended December 31, 2019 can be split up as follows:

		Year ended December 31, 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		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	(181,644)

Gilead share subscription agreement

On August 23, 2019, the closing date of the contract, Gilead made a €960.1 million equity investment in Galapagos NV by subscribing to 6,828,985 new ordinary shares at a price of €140.59 per share, including issuance premium. The equity subscription was accounted for as a financial asset at signing date of the contract on July 14, 2019 and changes in fair value were recorded through profit or loss until closing date, when the financial liability was derecognized.

We recognized a fair value loss of €142.4 million which 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.

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	€	—

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Gilead warrants A and B

We measured the warrants (warrant A and initial and subsequent warrant B) at fair value and recognized a warrant issuance liability at closing date of the transaction. Upon approval of the issuance of warrant A and 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.

Warrant A was valued using a standard option model (Black & Scholes Merton). 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, applied discount for lack of marketability). On November 6, 2019 Gilead exercised warrant A and as such increased its ownership in Galapagos to 25.10% of the then outstanding shares. Between the warrant approval date and the exercise of warrant A 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.

Management assessed that the financial liability relating to this warrant A had a remaining fair value of €0 million on December 31, 2019 mainly because Gilead further increased its ownership to 25.84% 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	€	—

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, 2019. The fair value measurement of this financial liability is categorized as level 3 in the fair value hierarchy. Initial warrant B was 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 loss of €3.7 million was mainly the result of an increase in the implied volatility of our share price and our share price itself between the warrant approval date and year-end. The fair value of the financial liability related to the initial warrant B amounted to €6.2 million on December 31, 2019.

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

		(Euro, in thousands)
Fair value of financial liability at warrant approval date	€	(2,545)
Change in fair value recorded in profit or loss		(3,653)
Fair value on December 31, 2019	€	(6,198)

The fair value of the financial liability related to the initial warrant B of €6.2 million on December 31, 2019 was presented as current financial instrument, in the section current liabilities, in our consolidated statement of financial position.

Subsequent warrant B is still subject to approval by an extraordinary general meeting of shareholders and was therefore still presented as warrant issuance liability in our deferred income (we refer to note 24 for more information). Subsequent warrant B was 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).

139

Other financial income and expense

The following table summarizes other financial income and expense for the years ended December 31, 2019 and 2018.

	Year ended December 31,
	2019		2018		% Change
		(Euro, in thousands)
Other financial income:
Interest income	€	14,305	€	5,217	174%
Effect of discounting long term R&D incentives receivables		93		199	(53%)
Currency exchange gain		775		10,978	(93%)
Fair value gain on financial assets held at fair value through profit or loss		5,355		1,203	345%
Fair value gain on current financial investments		611		—
Gain upon sale of financial assets held at fair value through profit or loss		2		667	(100%)
Other finance income		248		—
Total other financial income		21,389		18,264	17%
Other financial expenses:
Interest expenses		(1,268)		(780)	63%
Effect of discounting long term deferred income		(6,900)		—
Currency exchange loss		(47,720)		(1,057)	4413%
Fair value loss on current financial investments		(3,700)		—
Other finance charges		(380)		(764)	(50%)
Total other financial expense		(59,968)		(2,602)	2205%
Total other net financial expense (-)/ income	€	(38,579)	€	15,663	(346%)

The currency exchange loss in 2019 primarily related to a realized currency exchange loss of €34.9 million on the U.S. dollars upfront payment from Gilead (mainly related to the negative hedging effect) and to €10.6 million of unrealized exchange loss on deposits and current financial investments held in U.S. dollars. 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. Interest expenses were related to interests on term deposits and on lease of buildings and cars.

A net fair value loss on current financial investments of €3.1 million was recorded in 2019. This consisted of the effect of the re-measurement at fair value of these investments at the reporting date.

Other financial expense for 2019 also included €6.9 million of costs linked to the accounting for a financing component embedded in the upfront consideration received from Gilead in connection with the revised agreement for filgotinib.

The decrease in currency exchange gain was due to a currency exchange gain in 2018 of €10.1 million on our cash and cash equivalents held in U.S. dollar. Interest income was related to interests on term deposits and current financial investments.

Net exchange loss amounted to €46.9 million for the year ended December 31, 2019, compared to a net exchange gain of €9.9 million for the year ended December 31, 2018.

  For the year ended December 31, 2019, fair value gain on financial assets held at fair value through profit or loss consisted of positive 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. The fair values loss on the current financial investments reflected the differences between the amounts invested in our money market funds denominated in EUR and their fair value at settlement date or December 31, 2019. These fair value losses were 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.”

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Income Taxes

The following table summarizes our tax result for the years ended December 31, 2019 and 2018.

	Year ended December 31,
	2019		2018
		(Euro, in thousands)
Current tax	€	(1,372)	€	(584)
Deferred tax		1,537		(238)
Income taxes	€	165	€	(822)

Current tax amounted was related to corporate income taxes for subsidiaries operating on a cost plus basis. Deferred tax income related to subsidiaries working on a cost plus basis. Despite the significant profit before tax incurred in the year ended December 31, 2019, we only recorded a minor tax charge as we made use of the “innovation income deduction” regime in Belgium.

We refer to note 11 of our consolidated financial statements ‘Income taxes’.

Results from Discontinued Operations

The following table summarizes our results from discontinued operations for the years ended December 31, 2019 and 2018.

	Year ended December 31,
	2019		2018
	(Euro, in thousands, except share and per share data)
Revenues	€	10,084	€	10,170
Other income		8		9
Total revenues and other income		10,092		10,179
Research and development expenses		(7,229)		(6,653)
General and administrative expenses		(1,319)		(1,253)
Total operating expenses		(8,548)		(7,906)
Operating income		1,544		2,273
Other financial income		93		71
Other financial expenses		(102)		(135)
Income before tax		1,535		2,209
Income taxes		(379)		773
Net income	€	1,156	€	2,981
Basic income per share from discontinued operations	€	0.02	€	0.06
Diluted income per share from discontinued operations	€	0.02	€	0.06
Weighted average number of shares (in thousands of shares)		57,614		52,113
Weighted average number of shares - Diluted (in thousands of shares)		60,112		53,922

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 fee-for-service segment). The transaction was completed on January 4, 2021.

As we expect to continue to purchase services from Fidelta d.o.o. after the closing of the transaction, we have eliminated the intragroup revenue and cost in discontinued operations.

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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 payments, 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. Our cash flows may fluctuate and are difficult to forecast and will depend on many factors. On December 31, 2020, our current financial investments and cash and cash equivalents amounted to €5,169.3 million. For more information on our policies regarding financial instruments, please see “Note 3—Significant accounting policies—Financial instruments” included in our consolidated financial statements appended to this annual report.

Cash flows

Comparison for the years ended December 31, 2020 and 2019

The following table summarizes the results of our audited consolidated statement of cash flows for the years ended December 31, 2020 and 2019.

	2020		2019		Variance
		(Euro, in thousands)
Cash and cash equivalents at beginning of the period	€	1,861,616	€	1,290,796	€	570,821
Net cash flows generated/used (-) in operating activities		(427,336)		3,208,617		(3,635,953)
Net cash flows generated/used (-) in investing activities		757,288		(3,764,660)		4,521,948
Net cash flows generated in financing activities		22,040		1,335,751		(1,313,710)
Transfer to current financial investments (1)		—		(198,922)		198,922
Effect of exchange rate differences on cash and cash equivalents		(70,539)		(9,966)		(60,573)
Cash and cash equivalents at end of the period	€	2,143,071	€	1,861,616	€	281,455

	2020		2019		Variance
		(Euro, in thousands)
Current financial investments at end of the period	€	3,026,278	€	3,919,216	€	(892,938)
Cash and cash equivalents from continuing operations at end of the period		2,135,187		1,861,616		273,571
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	€	5,169,349	€	5,780,832	€	(611,483)

The net increase of €281.5 million in cash and cash equivalents for the year ended December 31, 2020, consisted of negative unrealized exchange differences of €70.5 million, compensated by an increase in cash and cash equivalents of €352.0 million. This latter was composed of (i) €517.4 million of operational cash burn, (ii) €28.3 million of cash proceeds from capital and share premium increase from exercise of subscription rights in 2020, (iii) the net sale of current financial investments of €841.1 million.

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/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/used (–) in investing activities.

This alternative performance 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 operational cash flow, net cash inflow from the Gilead transaction and the operational cash burn adjusted for this transaction, to the closest IFRS measures, for each of the periods indicated:

	2020		2019
	(Euro, in thousands)
Increase in cash and cash equivalents (excluding effect of exchange differences)	€	351,994	€	779,710
Less :
Net proceeds from capital and share premium increases		(28,287)		(1,340,842)
Net purchase/sale (-) of current financial investments		(841,110)		3,723,940
Total operational cash flow/cash burn (-)		(517,404)		3,162,809
Upfront consideration received from Gilead				3,569,815
Realized exchange loss on Gilead upfront				(34,853)
Costs associated to the transaction with Gilead				(37,849)
Net operational cash proceeds from the Gilead transaction		—		3,497,113
Operational cash burn adjusted for Gilead transaction	€	(517,404)	€	(334,304)

The decrease in net cash flow generated/used (-) in operating activities for the year ended December 31, 2020 as compared to the year ended December 31, 2019, is primarily explained by the upfront payment of €3,569.8 million received from Gilead in August 2019.

The increase in net cash generated/used (-) in investing activities for the year ended December 31, 2020, can be primarily explained by the net sale of €841.1 million of our current financial investments in 2020, as compared to a net purchase of €3,723.9 million of current financial investments in 2019. On the other hand investments in (in)tangible fixed assets increased from €45.7 million for the year ended December 31, 2019 to €91.3 million for the year ended December 31, 2020.

The net cash inflow from financing activities for the year ended December 31, 2019, can primarily be attributed to €955.6 million of net new funds from the share subscription by Gilead and €368.0 million from the exercise of warrant A by Gilead. In addition, proceeds received on exercises of subscription rights contributed to cash generated by financing activities for the years ended December 31, 2019 and 2020 for respectively €17.2 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, 2020 and 2019.

		2020	2019		Variance
		(Euro, in thousands)
Net cash flows generated in operating activities	€	7,173	€	2,911	€	4,262
Net cash flows used in investing activities		(2,284)		(1,350)		(934)
Net cash flows used in financing activities		(664)		(709)		45
Net cash flow from discontinued operations	€	4,225	€	852	€	3,373

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Comparison for the years ended December 31, 2019 and 2018

The following table summarizes the results of our audited consolidated statement of cash flows for the years ended December 31, 2019 and 2018.

	2019		2018		Variance
	(Euro, in thousands)
Cash and cash equivalents at beginning of the period	€	1,290,796	€	1,151,211	€	139,584
Net cash flows generated/used (-) in operating activities		3,208,617		(142,466)		3,351,083
Net cash flows used in investing activities		(3,764,660)		(15,914)		(3,748,746)
Net cash flows generated in financing activities		1,335,751		287,876		1,047,875
Transfer to current financial investments		(198,922)		—		(198,922)
Effect of exchange rate differences on cash and cash equivalents		(9,966)		10,089		(20,055)
Cash and cash equivalents at end of the period	€	1,861,616	€	1,290,796	€	570,821

(1)  The money market funds were no longer classified as cash equivalents and were transferred to the current financial investments because we no longer used them for meeting short-term cash commitments.

	December 31,
	2019		2018		Variance
	(Euro, in thousands)
Current financial investments	€	3,919,216	€	—	€	3,919,216
Cash and cash equivalents		1,861,616		1,290,796		570,821
Current financial investments and cash and cash equivalents	€	5,780,832	€	1,290,796	€	4,490,037

The net increase of €570.8 million in cash and cash equivalents for the year ended December 31, 2019, consisted of a transfer to current financial investments of €198.9 million, negative unrealized exchange differences of €10.0 million, both compensated by an increase in cash and cash equivalents of €779.7 million. This latter was composed of (i) €3,162.8 million of operational cash flow, of which €3,497.1 million net operational cash inflow from the Gilead collaboration and €334.3 million operational cash burn, (ii) €955.6 million net cash proceeds related to the share subscription by Gilead and €368.0 million cash proceeds related to the exercise of warrant A by Gilead, (iii) €17.2 million of cash proceeds from capital and share premium increase from exercise of warrants in 2019, less (iv) the net increase in current financial investments of €3,723.9 million.

We refer to the comparison for the years ended December 31, 2020 and 2019 for the definition of the operational cash burn/cash flow.

The following table presents a reconciliation of operational cash flow, net cash inflow from the Gilead transaction and the operational cash burn adjusted for this transaction, to the closest IFRS measures, for each of the periods indicated:

	2019		2018
	(Euro, in thousands)
Increase in cash and cash equivalents (excluding effect of exchange differences)	€	779,710	€	129,497
Less :
Net proceeds from capital and share premium increases		(1,340,842)		(287,881)
Net purchase of current financial investments		3,723,940
Total operational cash flow/cash burn (-)		3,162,809	€	(158,384)
Upfront consideration received from Gilead		3,569,815
Realized exchange loss on Gilead upfront		(34,853)
Costs associated to the transaction with Gilead		(37,849)
Net operational cash proceeds from the Gilead transaction		3,497,113
Operational cash burn adjusted for Gilead transaction	€	(334,304)

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The increase in net cash flow generated/used (-) in operating activities for the year ended December 31, 2019, was primarily explained by the upfront payment of €3,569.8 million received from Gilead.

The increase in net cash used in investing activities for the year ended December 31, 2019, can be primarily explained by the net increase of €3,723.9 million in our current financial investments. In addition investments in (in)tangible fixed assets increased from €13.7 million for the year ended December 31, 2018 to €45.7 million for the year ended December 31, 2019.

The net cash inflow from financing activities for the year ended December 31, 2018, can primarily be attributed to €280.2 million of net new funds from the U.S. follow-on public offering on the Nasdaq Global Select Market on September 17, 2018. The net cash inflow from financing activities for the year ended December 31, 2019, can primarily be attributed to €955.6 million of net new funds from the share subscription by Gilead and €368.0 million from the exercise of warrant A by Gilead. In addition, proceeds received on exercises of warrants contributed to cash generated by financing activities for the years ended December 31, 2018 and 2019 for respectively €7.7 million and €17.2 million.

The consolidated cash flow table 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, 2019 and 2018.

		2019	2018		Variance
	(Euro, in thousands)
Net cash flows generated in operating activities	€	2,911	€	3,335	€	(424)
Net cash flows used in investing activities		(1,350)		(799)		(551)
Net cash flows used in financing activities		(709)		—		(709)
Net cash flow from discontinued operations	€	852	€	2,536	€	(1,684)

Cash and funding sources

The table below summarizes our sources of equity financing, excluding subscription right exercises, for the years ended December 31, 2020 and 2019.

	Private placement
	(Euro, in thousands)
2018	€	280,224
2019		1,323,675
2020		—
Total sources of equity financing	€	1,603,899

On September 17, 2018, we completed a public offering in the United States of 2,961,373 new ordinary shares in the form of ADSs at a price of $116.50 per ADS, before underwriting discounts. We received €296.2 million of gross proceeds, decreased by €16.0 million of expenses. The total net cash proceeds from the public offering amounted to €280.2 million.

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, 2020, 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, 2020 and 2019, 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.

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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 for the coming years and 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.”

Capital expenditures

Our commitments for capital expenditures on December 31, 2020 amounted to €54.7 million.

Our capital expenditures amounted to €91.3 million, €45.7 million and 13.7 million for the years ended December 31, 2020, 2019 and 2018 respectively.

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).

In 2018, our capital expenditures were primarily related to laboratory and computer equipment for €5.8 million, €1.8 million of intangible assets related to license fees, €0.8 million for other tangible fixed assets, €1.6 million of intangible assets primarily related to software development, and €3.1 million for building and building improvements.

Contingent liabilities and assets

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 including customary adjustments for net cash and working capital. In accordance with common practice, we gave representations and warranties which are capped and limited in time.

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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 will assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. Beginning on January 1, 2021, we will 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 percent of net sales in Europe to Gilead, starting in 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 €35 million in January 2021 and will pay an additional €75 million in 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. We achieved two milestones under the first revised agreement in September 2020 totaling $105 million.

As a result of the Option, License and Collaboration agreement signed with Gilead in July 2019, we share further development costs for GLPG1690 equally with Gilead. We were also entitled to an additional milestone for GLPG1690 upon approval in the United States and we were eligble to receive tiered royalties ranging from 20-24% on net sales of GLPG1690 by Gilead in all countries outside Europe. In February 2021, we and Gilead announced our decision to discontinue all ongoing development activities with ziritaxestat.

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. 

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, 2020 to December 31, 2020 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.

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, 2020, 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	€	347,873	€	271,922		€	73,009	€	2,870	€	72

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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 €614.1 million at December 31, 2019. At December 31, 2020, after the recent renegotiation of the filgotinib collaboration, our estimate of this cost sharing commitment amounts to €493.4 million, for which we have direct purchase commitments of €18.1 million at December 31, 2020 (€27.5 million at December 31, 2019) reflected in the tables above.

The table above does not include pension 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, 2020 the net liability for such obligations amounted to €15.0 million (€8.3 million at December 31, 2019).

Non-current deferred income was €2,366.0 million at December 31, 2020 (€2,586.3 million at December 31, 2019). This year’s amount related to the upfront payment received from Gilead in August 2019, the recognition of a deferred income upon signing of the share subscription agreement with Gilead in July 2019, additional milestone payments received in 2020 and additional upfront payments related to the recently renegotiated filgotinib agreement. See note 24 to the consolidated financial statements.

Other non-current liabilities amounted to €8.1 million on December 31, 2020 (€7.0 million on December 31, 2019) and primarily related to deferred management bonuses and RSU plans granted in 2019 and 2020. The management board members, together with other senior managers, are eligible to receive bonuses under the Senior Management Bonus Scheme. Pursuant to the rules of the Senior Management Bonus Scheme which was granted until performance year 2018, 50% of the bonus was paid immediately around year-end and the payment of the remaining 50% was 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). See notes 3 and 28 to the consolidated financial statements. Management board members and other employees were granted RSU’s in 2019 and 2020. 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

In 2019, a new Belgian Companies Code (the “Belgian Companies Code“) was approved by the Belgian Parliament. For existing companies like Galapagos NV, there was a transition regime providing for a staggered applicability of the new provisions. Certain parts of the new code apply to Galapagos as of January 1, 2020, and the full transition was completed on Galapagos’ extraordinary shareholders’ 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 the new articles of association are an exhibit to this report.

Under the Belgian Companies Code, the executive committee in accordance with article 524bis of the old Belgian Companies Code has been abolished. The Belgian Companies Code introduces (among other things) a two-tier system, with two new governance bodies: the supervisory board and the 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. Galapagos’ Corporate Governance Charter describes the main aspects of our governance system, among others, the structure, composition and their role and responsibilities.

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In light of the Belgian Companies Code, the Belgian Corporate Governance Committee adopted a new Corporate Governance Code (the "2020 Belgian Corporate Governance Code") (which can be consulted on www.corporategovernancecommittee.be). The 2020 Belgian Corporate Governance Code was published on May 9, 2019. The 2020 Belgian Corporate Governance Code applies compulsorily to reporting years beginning on or after January 1, 2020. For the reporting period beginning on January 1, 2020, the 2020 Belgian Corporate Governance Code was our reference code. Following the amendment of our articles of association, Galapagos NV’s supervisory board approved on April 28, 2020 an updated corporate governance charter. The corporate governance charter applies in addition to the law, Galapagos NV’s articles of association and the corporate governance provisions included in the Belgian Companies Code and the 2020 Belgian Corporate Governance Code.

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. Upon proposal of the board of directors, the extraordinary shareholders’ meeting of April 28, 2020 has resolved to introduce 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 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.

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, including the Chairman who does not hold the office of CEO. 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.

The following table sets forth certain information with respect to the current members of our supervisory board, including their ages, as of December 31, 2020:

Name	Age	Date service began in current term	Date of expiration of current term (1)	Position(s)
Raj Parekh, MA, Dphil (2)	60	2017	2021	Chairman of the supervisory board
Howard Rowe, JD (3)	51	2018	2022	Supervisory board member
Katrine Bosley (2)	52	2017	2021	Supervisory board member
Mary Kerr, Ph.D. (3)	59	2020	2024	Supervisory board member
Peter Guenter (3)	58	2019	2023	Supervisory board member
Daniel O'Day	56	2019	2023	Supervisory board member
Linda Higgins	58	2019	2023	Supervisory board member
Elisabeth Svanberg, MD, Ph.D.(2) (4)	59	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 director's name

(2) Member of the nomination and remuneration committee

(3) Member of the audit committee

(4) Member from the supervisory board from April 28, 2020

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         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 requirements and five out of eight of the members of the supervisory board are independent under Belgian law.

With the implementation of the new two-tier governance structure, the mandate of Mr. Onno van de Stolpe as member of the board of directors ended on April 28, 2020, as it is not allowed to be a member of the supervisory board and the management board at the same time. Mr. Onno van de Stolpe continues his mandate as member and chairman of the management board and CEO. His biographical information is set out under the biographical information of the management board members.

The following is the biographical information of the members of our supervisory board (members per December 31, 2020):

Rajesh Parekh, MA, DPhil has served as the Chairman 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 SA; Amphista Therapeutics Ltd.; Arrakis, Inc.; Aura Biosciences; Levicept Limited; PE Limited; Pheno Therapeutics Ltd.; Tridek-One Therapeutics SAS; and Zikani, Inc. 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 member of our supervisory board since 2010. Mr. Rowe is Managing Director at Hayfin Capital Management LLP. 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 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-in-Residence 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 Chief Executive Officer of NeRRe Therapeutics, and member of the supervisory board (non-executive director) of Galapagos NV since July 26, 2016. 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, and 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.

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Peter Guenter has served as a 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 member of our supervisory board since October 22, 2019. Daniel O’Day joined Gilead in 2019 to lead the biopharmaceutical company, which has more than 11,000 employees around the world. Prior to Gilead, 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 a number of executive positions in the company’s pharmaceutical and diagnostics divisions in North America, Europe and Asia. During his time at Roche, Mr. O’Day demonstrated vision and leadership, helping to engineer the acquisitions of Flatiron Health and Foundation Medicine in 2018. He served as a member of the company’s Corporate Executive Committee, as well as on a number of public and private boards, including Genentech. Mr. O’Day is currently the Chairman and Chief Executive Officer of Gilead Sciences, Inc. and a member of the board of directors of Pharmaceutical Research and Manufacturers of America (PhRMA). 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 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, External Innovation. In her first nine years at Gilead she led Biology, significantly expanding the therapeutic area scope and capabilities of the department. 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.

Elisabeth Svanberg, MD, Ph.D. has served as a 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, a specialty pharmaceutical company 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) and Pharnext SA (since 2020).

Management board

Upon proposal of the board of directors, the extraordinary shareholders’ meeting of April 28, 2020 has resolved to introduce 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, 2020:

Name	Age	Position(s)
Onno van de Stolpe	61	Chief Executive Officer
Piet Wigerinck, Ph.D.	56	Chief Scientific Officer
Bart Filius, MBA	50	Chief Financial Officer & Chief Operating Officer
Andre Hoekema, Ph.D.	63	Chief Business Officer
Walid Abi-Saab, MD	55	Chief Medical Officer
Michele Manto	47	Chief Commercial Officer

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.

Mr. Bart Filius is appointed as President and Chief Operating Officer, effective February 15, 2021.

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. He 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 Laboratories BV and as of March 15, 2021, he is a member of the board of directors of European Biotech Acquisition Corp.

Piet Wigerinck, Ph.D. joined us in April 2008 as SVP Development and was appointed Chief Scientific Officer in 2012. Under his leadership, we have developed a large pipeline of novel mechanism of action drug candidates. He has supervised multiple successful Proof-of-Concept patient studies, including filgotinib, GLPG1690, and MOR106. Prior to his tenure at Galapagos, Dr. Wigerinck was Vice President, Drug Discovery, Early Development and CM&C at Tibotec-Virco Comm. VA (a subsidiary of Johnson & Johnson Services, Inc.). Under his leadership at Tibotec, TMC114 (Prezista™) and TMC435 (Olysio™) were selected and moved forward into clinical trials. Dr. Wigerinck played a key role in Tibotec’s expansion into novel diseases such as Hepatitis C and advanced several compounds into Phase 1 and Phase 2 clinical trials. Dr. Wigerinck has over 30 years of R&D experience in the pharmaceutical industry and biotechnology. He holds a Ph.D. from the University of Leuven, Belgium, and is inventor on more than 25 patent applications. In May 2018, Dr. Wigerinck was elected as independent board member of Ipsen SA, France.

Bart Filius, MBA has served as our Chief Financial Officer since December 2014 and as our Chief Operating Officer since September 2017. He is appointed as our President and Chief Operating Officer, effective February 15, 2021. 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 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.

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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. 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 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.

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.

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, 2020, was €3,536,272.94. For the year ended December 31, 2020, the total amounts set aside or accrued to provide pension, retirement or similar benefits to our management board amounted to €391,609.44.

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. 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 also 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.

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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, 2020 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 and Peter Guenter, and from April 28, 2020, 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, replacing Howard Rowe from April 28, 2020): €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: €100,000; other supervisory board members: €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.

The same 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.

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, 2020:

		Supervisory board				Audit committee		Nomination and remuneration committee
		Cash remuneration		Equity-based remuneration
		Chairman Fees earned	Member Fees earned	Cash (gross amount) granted to acquire GLPG shares (1)	Acquired GLPG shares (1)	Chairman fees earned	Member fees earned	Chairman fees earned	Member fees earned
Name		(Euro)	(Euro)			(Euro)	(Euro)	(Euro)	(Euro)
Raj Parekh	€	100,000		100,000	553			20,000
Howard Rowe(2)			50,000	50,000	273	20,000			5,000
Katrine Bosley			50,000	50,000	287				15,000
Mary Kerr			50,000	50,000	273		15,000
Peter Guenter(3)			50,000	50,000	287		15,000
Elisabeth Svanberg(4)			33,973	33,835	194				10,192
Daniel O'Day(5)
Linda Higgins(5)
Total	€	100,000	233,973	333,835		20,000	30,000	20,000	30,192

(1)	The company grants a gross amount equal to the respective supervisory board member’s annual cash remuneration, to use the net amount (after taxes) to acquire shares of Galapagos in the open market.
(2)	Member of the nomination and remuneration committee from 1 January 2020 until 28 April 2020
(3)	In addition to the above total remuneration, Mr. Guenter received tax advisory services for €5,218.43
(4)	Mandate as supervisory board member of Galapagos NV began on April 28, 2020
(5)	Mr. O’Day and Dr. Higgins, both Gilead representatives, do not receive any remuneration for their mandate as supervisory board members

          With the implementation of the new two-tier governance structure, the mandate of Mr. Onno van de Stolpe as member of the board of directors ended on April 28, 2020, as it is not allowed pursuant to the Belgian Companies Code to be a member of the supervisory board and the management board at the same time. Mr. Onno van de Stolpe continues his mandate as member and chairman of the management board and CEO. As an executive director, Onno van de Stolpe did not receive any specific or additional remuneration for his service on our board of directors, as this is included in his total remuneration package in his capacity as member of our management board. For more information regarding Mr. van de Stolpe’s compensation, see “—Compensation of Members of the Management Board” below.

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The table below provides an overview as of December 31, 2020 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 right exercises
Name	Plan	Grant date	Vesting period	Subscription  right exercise price (Euro)	Subscription right expiration date	Number of ordinary shares underlying subscription rights per Dec. 31, 2020	Number  of subscription  rights exercisable per Dec 31, 2020	Number of subscription rights exercised during 2020
Raj Parekh	Warrant Plan 2016	8/16/2016	36 months 1/36 per month	46.10	5/31/2024			15,000
	WP 2017	8/30/2017		80.57	5/16/2025	15,000
	WP 2018	8/24/2018		79.88	4/18/2026	15,000
	WP 2019	7/12/2019		95.11	4/10/2027	15,000
Total						45,000		15,000
Howard Rowe	WP 2012	9/3/2012	36 months 1/36 per month	14.19	9/2/2020			2,520
	WP 2013	5/16/2013		19.38	5/15/2021			2,520
	WP 2014	7/25/2014		14.54	7/24/2022	2,520	2,520
	WP 2015	4/30/2015		28.75	4/29/2023	2,520	2,520
	WP 2015.B	3/2/2016		49.00	12/21/2023	7,500	7,500
	WP 2016	8/16/2016		46.10	5/31/2024	7,500	7,500
	WP 2017	8/30/2017		80.57	5/16/2025	7,500
	WP 2018	8/24/2018		79.88	4/18/2026	7,500
	WP 2019	7/12/2019		95.11	4/10/2027	7,500
Total						42,540	20,040	5,040

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Katrine Bosley	WP 2015	4/30/2015	36 months 1/36 per month	28.75	4/29/2023	2,520	2,520
	WP 2015.B	3/2/2016		49.00	12/21/2023	7,500	7,500
	WP 2016	8/16/2016		46.10	5/31/2024	7,500	7,500
	WP 2017	8/30/2017		80.57	5/16/2025	7,500
	WP 2018	8/24/2018		79.88	4/18/2026	7,500
	WP 2019	7/12/2019		95.11	4/10/2027	7,500
Total						40,020	17,520
Mary Kerr	WP 2017	8/30/2017	36 months 1/36 per month	80.57	5/16/2025	7,500
	WP 2018	8/24/2018		79.88	4/18/2026	7,500
	WP 2019	7/12/2019		95.11	4/10/2027	7,500
Total						22,500
			36 months 1/36 per month
Peter Guenter	WP 2019	7/12/2019		95.11	4/10/2027	7,500
Total						7,500

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No loans, quasi-loans or other guarantees were given to the supervisory board members during the year ended December 31, 2020.

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.

· 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 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 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, 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, 2020.

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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, 2020:

Management board members		Fixed remuneration			Variable remuneration			Total remuneration
		Base salary	Other components	Pension	One-year variable (1)	Multi-year variable (2)
						Vested RSUs	Granted SRs (3)
Onno van de Stolpe (4)	€	618,000	37,563	90,000	140,400	1,205,820	-	2,091,784
Bart Filius		416,500	24,446	60,000	67,206	844,131	-	1,412,283
Andre Hoekema		366,750	32,226	54,000	58,440	-	-	511,416
Piet Wigerinck		412,000	14,409	60,000	55,518	844,131	-	1,386,058
Walid Abi-Saab		412,000	14,965	60,000	55,518	844,131	-	1,386,614
Michele Manto		325,000	14,509	48,750	55,518	241,126	-	684,903

(1)	Short-term cash bonus for performance during the year ended December 31, 2020, to be paid in April 2021.  The 50% deferred part of the bonus awarded and relating to the financial year 2017 was forfeited entirely and not paid out in 2020 as a result of the share performance of Galapagos NV’s share over the period 2017-2020 relative to the Next Biotech Index (which tracks Euronext-listed biotech companies) as per the provisions of the Senior Management Bonus Scheme
(2)	This is the sum of the value of the RSUs vested and paid out during the year and the subscription rights granted during the year
(3)	The value of the subscription rights ("SRs") granted during the financial year 2020 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 2020
(4)	Mr. Onno van de Stolpe's base salary is €618,000, including €18,859.44 in the form of personal pension contributions. The €90,000 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 total remuneration table above sets forth the value of the number of RSUs vested and paid out in 2020 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.

Subscription rights

In addition, the management board members in office during the year ended December 31, 2020, 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 2020. The exercise price of these subscription rights is €168.92. These warrants are exercisable as from January 1, 2024.

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The table below provides an overview as of December 31, 2020 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, 2020.

	Subscription rights awarded						Subscription rights exercised
Name	Plan	Grant date	Vesting period	Subscription rights exercise price (Euro)	Subscription rights expiration date	Number of ordinary  shares underlying subscription  rights  per Dec 31, 2020	Number of subscription rights exercisable per Dec 31, 2020	Number of subscription right awarded during 2020	Number of subscription right exercised during 2020
Onno van de Stolpe	WP 2012	11/2/2012	36 months 1/36 per month	14.19	9/2/2020				55,000
	WP 2013	7/29/2013		19.38	5/15/2021	41,874	41,874		30,000
	WP 2014	10/14/2014		14.54	7/24/2022	100,000	100,000
	WP 2015	6/29/2015		28.75	4/29/2023	100,000	100,000
	WP 2015.B	3/2/2016		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
	WP 2018	6/18/2018		79.88	4/18/2026	100,000
	WP 2019	7/12/2019		95.11	4/10/2027	100,000
	SR Plan 2020	6/16/2020	100% 3rd  year after year of grant 01/01/2024	168.42	4/17/2027	85,000		85,000
Total						826,874	441,874	85,000	85,000
Bart Filius	WP 2015.B	3/2/2016	100% 3rd year after year of grant	49.00	12/21/2023				50,000
	WP 2016	7/31/2016		46.10	5/31/2024				60,000
	WP 2017	8/30/2017		80.57	5/16/2025	60,000
	WP 2018	6/18/2018		79.88	4/18/2026	80,000
	WP 2019	7/12/2019		95.11	4/10/2027	65,000
	SR Plan 2020	6/16/2020		168.42	4/17/2027	50,000		50,000
Total						255,000	0	50,000	110,000
Piet Wigerinck	WP 2013	7/15/2013	100% 3rd year after year of grant	19.38	5/15/2021				10,000
	WP 2014	9/23/2014		14.54	7/24/2022				40,000
	WP 2015	6/29/2015		28.75	4/29/2023				30,000
	WP 2015.B	3/2/2016		49.00	12/21/2023	40,000	40,000		10,000
	WP 2016	8/16/2016		46.10	5/31/2024	60,000	60,000
	WP 2017	8/30/2017		80.57	5/16/2025	60,000
	WP 2018	6/18/2018		79.88	4/18/2026	60,000
	WP 2019	7/12/2019		95.11	4/10/2027	50,000
	SR Plan 2020	6/16/2020		168.42	4/17/2027	40,000		40,000
Total						310,000	100,000	40,000	90,000

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Andre Hoekema	WP 2012	11/2/2012	100% 3rd year after year of grant	14.19	9/2/2020				20,000
	WP 2013	7/29/2013		19.38	5/15/2021				20,000
	WP 2014	10/14/2014		14.54	7/24/2022	30,000	30,000		10,000
	WP 2015	6/29/2015		28.75	4/29/2023	30,000	30,000
	WP 2015.B	3/2/2016		49.00	12/21/2023	40,000	40,000
	WP 2016	7/31/2016		46.10	5/31/2024	55,000	55,000
	WP 2017	8/30/2017		80.57	5/16/2025	60,000
	WP 2018	6/18/2018		79.88	4/18/2026	50,000
	WP 2019	7/12/2019		95.11	4/10/2027	50,000
	SR Plan 2020	6/16/2020		168.42	4/17/2027	30,000		30,000
Total						345,000	155,000	30,000	50,000
Walid Abi-Saab	WP 2016.B	4/6/2017	100% 3rd year after year of grant	62.50	1/19/2025	10,000	10,000		140,000
	WP 2017	8/30/2017		80.57	5/16/2025	45,000
	WP 2018	6/18/2018		79.88	4/18/2026	60,000
	WP 2019	7/12/2019		95.11	4/10/2027	50,000
	SR Plan 2020	6/23/2020		168.42	4/17/2027	40,000		40,000
Total						205,000	10,000	40,000	140,000
Michele Manto	WP 2017	8/30/2017	100% 3rd year after year of grant	80.57	5/16/2025	60,000
	WP 2018	6/18/2018		79.88	4/18/2026	30,000
	WP 2019	7/12/2019		95.11	4/10/2027	40,000
	SR Plan 2020	6/23/2020		168.42	4/17/2027	30,000		30,000
Total						160,000	0	30,000	0

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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 types of restricted stock unit (RSU) programs:

· Plan 2020.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.I and 2019.II - 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 - This plan was granted at the discretion of the board of directors (existing at that time, now known the supervisory board), as previously announced: and

· 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.

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, forfeiture rules apply.

In 2020, the management board were offered new restricted stock units (‘RSUs’) under 2020 RSU Annual Long-Term Incentive Plan and the 2020 RSU Retention Plan, subject to acceptance. The members of the management board accepted all RSUs offered to them. 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, 2021. The RSUs are not transferable. The table below sets forth the number of RSUs offered to and accepted by each management board member in 2020.

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         No RSUs expired during the year ended December 31, 2020. The table below sets out the main characteristics of RSU plans issued to the management board members during 2019 and 2020, 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 2020:

	RSUs awarded
						Number of
						RSUs
					Number of	vested
		Offer	Vesting	Vesting	RSUs	during
Name	Plan	date	period	date	granted	2020
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	6,401
			Four-year vesting period	05/01/2021
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two years after offer date	10/16/2021	16,922
			50% three years after offer date	10/16/2022
	Plan 2020.I	5/6/2020	100% three years after offer date	5/6/2023	2,392
	Plan 2020.II	5/6/2020	25% / year	05/01/2021	15,925
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
Total					75,845	6,401
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	4,481
			Four-year vesting period	05/01/2021
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two years after offer date	10/16/2021	16,922
			50% three years after offer date	10/16/2022
	Plan 2020.I	5/6/2020	100% three years after offer date	5/6/2023	1,452
	Plan 2020.II	5/6/2020	25% / year	05/01/2021	11,148
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
Total					52,446	4,481
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	4,481
			Four-year vesting period	05/01/2021
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two years after offer date	10/16/2021	10,153
			50% three years after offer date	10/16/2022
	Plan 2020.I	5/6/2020	100% three years after offer date	05/06/2023	932
	Plan 2020.II	5/6/2020	25% / year	05/01/2021	11,148
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
Total					45,157	4,481

162

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 years after offer date	10/16/2021	16,922
			50% three years after offer date	10/16/2022
	Plan 2020.I	5/6/2020	100% three years after offer date	05/06/2023	832
Total					20,754
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	4,481
			Four-year vesting period	05/01/2021
				05/01/2022
				05/01/2023
	Plan 2019.III	10/16/2019	50% two years after offer date	10/16/2021	10,153
			50% three years after offer date	10/16/2022
	Plan 2020.I	5/6/2020	100% three years after offer date	5/6/2023	932
	Plan 2020.II	5/6/2020	25% / year	05/01/2021	11,148
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
Total					45,157	4,481
Michele Manto	Plan 2019.II	10/16/2019	25% / year	05/01/2020	5,121	1,280
			Four-year vesting period	05/01/2021
				05/01/2022
				05/01/2023
	Plan 2020.I	5/6/2020	100% three years after offer date	5/6/2023	612
	Plan 2020.II	5/6/2020	25% / year	05/01/2021	5,308
			Four-year vesting period	05/01/2022
				05/01/2023
				05/01/2024
Total					11,041	1,280

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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.

The new 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 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.

The warrants offered to supervisory board members vest over a period of 36 months at a rate of 1/36th per month.

Subscription rights cannot be exercised before the end of the third calendar year following the year of the grant, except for warrants granted under 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. 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 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:

164

· 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, 2020, an aggregate of 14,495,737 subscription rights were granted. Of these 14,495,737 subscription rights:

· 147,512 subscription rights lapsed because they were not timely exercised by their beneficiaries;

· 1,271,559 subscription rights lapsed due to their beneficiaries no longer being employed by the company or because another condition for vesting was not met; and

·
6,147,555 subscription rights were exercised.

As a result, as of December 31, 2020, there were 6,929,111 subscription rights outstanding, representing approximately 10.6% 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, 2020, 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.

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			Number  of subscription rights	Number  of subscription rights	Number  of	Number of subscription rights still
		Exercise			subscription rights		Exercisable	Expiry
Subscription right plan	Offer date	price (€)	granted	exercised	voided	outstanding	from	date
2002 Belgium	3/6/2002	4.00	553,705	423,698	130,007	—	1/1/2006	3/6/2010
	9/2/2002	4.00	27,125	14,150	12,975	—	1/1/2006	9/2/2010
	3/6/2003	4.00	5,250	1,287	3,963	—	1/1/2007	3/31/2007
	4/1/2003	4.00	7,500	7,500	—	—	1/1/2007	4/1/2011
	6/15/2004	4.00	2,000	2,000	—	—	1/1/2008	6/15/2012
	7/9/2004	4.00	31,250	31,250	—	—	1/1/2008	2/1/2017
	7/22/2004	4.00	7,500	—	7,500	—	1/1/2008	3/31/2008
	1/31/2005	6.76	159,375	115,000	44,375	—	1/1/2009	2/1/2017
Total			793,705	594,885	198,820	—
2005	7/4/2005	6.91	145,000	145,000	—	—	1/1/2009	7/3/2018
	11/23/2005	8.35	125,000	75,000	50,000	—	1/1/2009	11/22/2018
	12/15/2005	8.60	12,500	12,500	—	—	1/1/2009	12/14/2018
	2/13/2006	8.61	40,000	8,000	32,000	—	1/1/2010	3/31/2010
	2/13/2006	8.73	53,500	50,972	2,528	—	1/1/2010	3/31/2010
	11/22/2006	8.65	82,600	61,285	21,315	—	1/1/2010	11/21/2019
Total			458,600	352,757	105,843	—
2006 BNL	2/13/2006	8.61	112,953	100,662	12,291	—	1/1/2010	2/12/2019
	11/22/2006	8.65	87,090	16,450	70,640	—	1/1/2010	11/21/2019
	2/14/2007	9.57	102,900	9,170	93,730	—	1/1/2011	8/31/2011
	5/4/2007	9.22	17,500	17,500	—	—	1/1/2011	5/3/2020
	6/28/2007	8.65	735	735	—	—	1/1/2011	6/27/2020
	12/21/2007	7.12	25,110	13,171	11,939	—	1/1/2011	12/20/2020
Total			346,288	157,688	188,600	—
2006 UK	6/1/2006	8.70	302,191	230,963	71,228	—	1/1/2010	9/30/2014
	11/22/2006	8.65	13,965	11,907	2,058	—	1/1/2010	11/21/2014
	12/19/2006	9.18	77,700	31,885	45,815	—	1/1/2010	12/18/2014
	6/28/2007	8.43	30,585	20,085	10,500	—	1/1/2011	6/27/2015
	12/21/2007	7.25	945	945	—	—	1/1/2011	12/20/2015
Total			425,386	295,785	129,601	—
2007	6/28/2007	8.65	108,126	108,126	—	—	1/1/2011	6/27/2015
	6/28/2007	8.65	256,314	203,141	53,173	—	1/1/2011	6/27/2020
Total			364,440	311,267	53,173	—
2007 RMV	10/25/2007	8.65	108,850	103,950	4,900	—	1/1/2011	10/24/2020
Total			108,850	103,950	4,900	—
2008	6/26/2008	5.60	201,445	192,754	7,326	1,365	1/1/2012	6/25/2021
Total			201,445	192,754	7,326	1,365
2008 (B)	6/26/2008	5.60	57,500	50,000	7,500	—	1/1/2012	6/25/2013
Total			57,500	50,000	7,500	—
2009	4/1/2009	5.87	555,000	490,000	65,000	—	1/1/2013	3/31/2017
Total			555,000	490,000	65,000	—
2009 (B)	6/2/2009	7.09	135,100	131,670	3,430	—	1/1/2013	6/1/2014
Total			135,100	131,670	3,430	—
2010	4/27/2010	11.55	466,500	416,750	49,750	—	1/1/2014	4/26/2018
	4/27/2010	11.55	40,000	40,000	—	—	4/27/2014	4/26/2018
Total			506,500	456,750	49,750	—
2010 (B)	4/27/2010	11.55	195,040	190,108	4,932	—	1/1/2014	4/26/2015
Total			195,040	190,108	4,932	—
2010 (C)	12/23/2010	11.74	75,000	75,000	—	—	1/1/2014	12/22/2018
Total			75,000	75,000	—	—
2011	5/23/2011	9.95	561,500	432,500	129,000	—	1/1/2015	5/22/2019
	5/23/2011	9.95	57,500	50,000	7,500	—	5/23/2015	5/22/2019

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			Number  of	Number  of	Number  of	Number of subscription rights still
		Exercise	subscription rights	subscription rights	subscription rights		Exercisable
Subscription right plan	Offer date	price (€)	granted	exercised	voided	outstanding	from	Expiry date
Total			619,000	482,500	136,500	—
2011 (B)	5/23/2011	9.95	129,220	127,750	1,470	—	1/1/2015	5/22/2016
Total			129,220	127,750	1,470	—
2012	9/3/2012	14.19	448,640	345,490	103,150	—	1/1/2016	9/2/2020
	9/3/2012	14.19	32,500	22,500	10,000	—	9/3/2016	9/2/2020
Total			481,140	367,990	113,150	—
2013	5/16/2013	19.38	602,790	376,176	170,950	55,664	1/1/2017	5/15/2021
Total			602,790	376,176	170,950	55,664
2013 (B)	9/18/2013	15.18	75,000	30,000	45,000	—	1/1/2017	6/30/2017
Total			75,000	30,000	45,000	—
2014	7/25/2014	14.54	571,660	367,320	35,000	169,340	1/1/2018	7/24/2022
Total			571,660	367,320	35,000	169,340
2014 (B)	10/14/2014	11.93	150,000	150,000	—	—	1/1/2018	10/13/2022
Total			150,000	150,000	—	—
2015	4/30/2015	28.75	532,053	295,580	17,000	219,473	1/1/2019	4/29/2023
Total			532,053	295,580	17,000	219,473
2015 (B)	12/22/2015	49.00	399,000	137,500	—	261,500	3/2/2019	12/21/2023
Total			399,000	137,500	—	261,500
2015 RMV	12/22/2015	49.00	97,500	57,500	—	40,000	3/2/2019	12/21/2023
Total			97,500	57,500	—	40,000
2016	6/1/2016	46.10	514,250	161,625	10,000	342,625	1/1/2020	5/31/2024
Total			514,250	161,625	10,000	342,625
2016 RMV	6/1/2016	46.10	120,000	51,000	—	69,000	1/1/2020	5/31/2024
Total			120,000	51,000	—	69,000
2016 (B)	1/20/2017	62.50	150,000	140,000	—	10,000	4/6/2020	1/19/2025
Total			150,000	140,000	—	10,000
2017	5/17/2017	80.57	595,500	—	—	595,500	1/1/2021	5/16/2025
Total			595,500	—	—	595,500
2017 RMV	5/17/2017	80.57	127,500	—	—	127,500	1/1/2021	5/16/2025
Total			127,500	—	—	127,500
2018	4/19/2018	79.88	1,097,745	—	14,500	1,083,245	1/1/2022	4/18/2026
Total			1,097,745	—	14,500	1,083,245
2018 RMV	4/19/2018	79.88	137,500	—	—	137,500	1/1/2022	4/18/2026
Total			137,500	—	—	137,500
2019	4/10/2019	95.11	1,504,940	—	27,100	1,477,840	1/1/2023	4/10/2027
Total			1,504,940	—	27,100	1,477,840
2019 RMV	4/10/2019	95.11	194,750	—	1,750	193,000	1/1/2023	4/10/2027
Total			194,750	—	1,750	193,000
2020	4/17/2020	168.42	1,925,185	—	19,151	1,906,034	1/1/2024	4/17/2028
Total			1,925,185	—	19,151	1,906,034
2020 RMV	4/17/2020	168.42	248,150	—	8,625	239,525	1/1/2024	4/17/2028
Total			248,150		8,625	239,525
Grand Total			14,495,737	6,147,555	1,419,071	6,929,111

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         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 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

Upon proposal of the board of directors, the extraordinary shareholders’ meeting of April 28, 2020 has resolved to introduce 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 differ from the independence criteria set forth in article 7:87 of the Belgian Companies Code. Under article 7:87 of the Belgian Companies Code Howard Rowe, Peter Guenter, Katrine Bosley,  Mary Kerr and Elisabeth Svanberg are “independent supervisory board members.”

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 “Belgian Corporate Governance Code”), published on May 9, 2019. The 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 Belgian Corporate Governance Code.

The Belgian Corporate Governance Code is based on a “comply or explain” system: Belgian listed companies are expected to follow the 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, 2020, 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.

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 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 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 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 Belgian Corporate Governance Code. 

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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 2020 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).

Nomination and remuneration committee

Our nomination and remuneration committee consists of three members: Raj Parekh (Chairman), Katrine Bosley and Elisabeth Svanberg (as from April 28, 2020). She replaced Howard Rowe, who remains a member of the supervisory board and chairman of the audit committee.

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;

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· 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 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.

D. Employees

As of December 31, 2020 we had 1,304 employees. (excluding Fidelta’s employees). Our employees in France, the Netherlands and Croatia are represented by a labor union and/or covered by a collective bargaining agreement. In 2020, we organized social elections for the first time in Belgium and since then our Belgian employees are also represented by a labor union. 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,
	2020	2019	2018
Function:
Executive officers	6	5	5
Research	330	266	245
Development	449	300	207
Research services	—	1	—
Commercial	147	40	—
Corporate and support	372	233	114
Total	1,304	1,003	725
Geography:
Leiden, the Netherlands	168	127	81
Mechelen, Belgium	674	486	303
Romainville, France	271	181	163
Boston, United States	13	12	8
Basel, Switzerland	63	31	10
Cambridge, United Kingdom	38	8	6
Milan, Italy	31	—	—
Madrid, Spain	32	—	—
Munich, Germany	14	—	—
Total	1,304	1,003	725

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.” 

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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, 2021 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;

·
our management board, excluding our chief executive officer, as a group; and

· all members of our supervisory board and management board as a group.

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, 2021. The percentage ownership information shown in the table is based upon 65,411,767 ordinary shares outstanding as of March 15, 2021.

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, 2021. 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)	25.54	%
The Capital Group Companies, Inc.	6,483,973	(1)(3)	9.91
Van Herk Investments B.V.	4,893,235	(1)(4)	7.48	%
Supervisory board and management board members:
Raj Parekh, MA, DPhil	15,553	(5)	*
Onno van de Stolpe	1,023,013	(6)	1.55	%
Howard Rowe, JD	32,853	(7)	*
Katrine Bosley	25,307	(8)	*
Mary Kerr, Ph.D.	7,773	(9)	*
Peter Guenter	287	(10)	*
Daniel O'Day	—		—
Linda Higgins, Ph.D.	—		—
Elisabeth Svanberg, MD, Ph.D.	194	(11)	*
Management board members excluding Onno van de Stolpe	676,557	(12)	1.03	%
All members of our supervisory board and management board as a group (14 persons)	1,781,537	(13)	2.68	%

(1) At the time of the most recent transparency notification or filing of a statement of beneficial ownership with the SEC.

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(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 6,483,973 shares held by The Capital Group Companies, Inc. (“CGC”). CGC is the parent company of Capital Research and Management Company ("CRMC") and Capital Bank & Trust Company ("CB&T"). CRMC is a U.S.-based investment management company that serves as investment manager to the American Funds family of mutual funds, other pooled investment vehicles, as well as individual and institutional clients. CRMC and its investment manager affiliates manage equity assets for various investment companies through three divisions Capital Research Global Investors, Capital International Investors and Capital World Investors. CRMC is the parent company of Capital Group International, Inc. ("CGII"), which in turn is the parent company of four investment management companies ("CGII management companies"): Capital International, Inc., Capital International Limited, Capital International Sàrl and Capital International K.K. CGII management companies and CB&T primarily serve as investment managers to institutional and high net worth clients. CB&T is a U.S.-based investment management company that is a registered investment adviser and an affiliated federally chartered bank. Neither CGC nor any of its affiliates own shares of the company for its own account. Rather, the shares reported above are owned by accounts under the discretionary investment management of one or more of the investment management companies described above. The address of The Capital Group Companies, Inc. is 333 South Hope Street, 55th Fl, Los Angeles, CA 90071, United States of America.
(4)	Consists of 4,893,235 shares held by Van Herk Investments B.V., as reported in a Schedule 13G/A filed on January 29, 2020 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 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 13G/A statement. The address of each of Mr. van Herk, VHI, VHIT, VHPI, Penulata, VHMS, OGBBA, Holdings and Abchrys is Lichtenauerlaan 30, 3062 ME Rotterdam, the Netherlands.
(5)	Consists of (i) 553 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, 2021.
(6)	Consists of (i) 481,139 shares and (ii) 541,874 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2021.
(7)	Consists of (i) 5,313 shares and (ii) 27,540 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2021.
(8)	Consists of (i) 287 shares and (ii) 25,020 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2021.
(9)	Consists of (i) 273 shares and (ii) 7,500 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2021.
(10)	Consists of 287 shares.
(11)	Consists of 194 shares
(12)	Consists of (i) 126,557 shares and (ii) 550,000 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2021.
(13)	Includes 1,166,934 shares issuable upon the exercise of subscription rights that are immediately exercisable or exercisable within 60 days of March 15, 2021.

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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, 2021, reviewing identified ownership in Nasdaq IR of 45% of outstanding shares (ordinary shares and ADSs), approximately 63% of those were held are held by 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 291 institutional holders of record, excluding Gilead Sciences, Inc., or Gilead. As of March 15, 2021, there were outstanding 7,070,607 ADSs, each representing one ordinary share, and in the aggregate representing approximately 10.8% 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 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 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.

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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 16, 2019, we received a transparency notification from Van Herk Investments B.V., who notified that it held 5,792,737 of our voting rights. 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.

On December 27, 2018, we received a transparency notice from Sands Capital Management, LLC, indicating that by acquiring additional securities on September 13, 2018, it held 3,092,264 of Galapagos NV’s voting securities, thus increasing above the lowest 5% notification threshold of Galapagos NV’s voting rights. This shareholding represented 5.68% of our then outstanding shares. On June 12, 2018, we received a transparency notice from Van Herk Investments B.V., indicating that by acquiring additional voting securities on June 8, 2018, its shareholding increased above the 10% notification threshold of Galapagos NV’s voting rights.

B. Related party transactions

Since January 1, 2020, 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 23 August 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).

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 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.

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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.

Global research and development 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 €34.1 million for the year ended December 31, 2020 (€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.”

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, as a result of which we will assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. We will thus have the sole right to commercialize filgotinib in Europe after a transition period which we expect to end by December 31, 2021. Until such date, we continue 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 will transfer 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. Gilead will retain commercial rights and remain marketing authorization holder for filgotinib outside of Europe, including in Japan. 

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Beginning on January 1, 2021, we will 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.

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 and will pay an additional €75 million in 2021 and €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.

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         In addition, we received in  December 2020 $18.7 million (€15.6 million) of royalty payments from Gilead for Jyseleca.

We incurred €126.9 million in development costs for the year ended December 31, 2020 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 € 101.0 million for the year ended December 31, 2020 (€72 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, 2020. (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, 2020. The reimbursement of commercialization costs under the cost split mechanism by us to Gilead amounted to €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 €7.8 million for the year ended December 31, 2020. The reimbursement of commercialization costs under the cost split mechanism by Gilead to us amounted to 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, 2020, Mr. Van de Stolpe received a base remuneration from Galapagos NV of €599,140.56.

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, 2020, Mr. Filius received a base remuneration from Galapagos NV of €416,500.02.

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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, 2020, Dr. Hoekema received a base remuneration from Galapagos NV of €366,750.

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 ended on December 31, 2020, Dr. Wigerinck received a base remuneration from Galapagos NV of €412,000.05.

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, 2020, Dr. Abi-Saab received a base remuneration from Galapagos NV of €412,000.02.

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 €324,999.96.

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. Wigerinck and Dr. Abi-Saab 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.

Supervisory Board and Management Board compensation

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.

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Equity awards

Since January 1, 2020, 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.

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);

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· 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

· 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.

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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 capital (or, if higher, the called capital), increased with the amount of non-distributable 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.

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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.”

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;

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· 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 Corporations), 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 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. 

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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. Non-corporate 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 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.

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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 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 2020 taxable year, we do not 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.

If we are a PFIC for any taxable year, then 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, 

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(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.” 

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.

If we are a PFIC for any year during which a U.S. holder holds the ADSs, 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 would apply if we were 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. However, we do not currently intend to provide the information necessary for U.S. holders to make a QEF election if we were treated as a PFIC for any taxable year and prospective investors should assume that a QEF election will not be available. 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.

If we are determined to be a PFIC, 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. If our company were a PFIC for a given taxable year, then you should consult your tax advisor concerning your annual filing requirements.

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 prospectus supplement, 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

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certain unavailable retained earnings) and the tax-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 of the U.S.-Belgium Tax Treaty under the limitation of 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 Centrum Buitenland - Team 6 - 17P, Kruidtuinlaan 50, mailbox 3429, B-1000 Brussels, Belgium;

·
by telephone at +32 (0)257 740 40;

·
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 Centrum Buitenland - Team 6 - 17P, 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 812 EUR (for income year 2020). 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 812 (for income year 2020) 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 812 (for income year 2020) 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 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 qualifies as a parent company (i) if it has a legal form similar to the ones listed in the annex to the EU Parent-Subsidiary Directive of November 30, 2011 (2011/96/EU)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.

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Dividends paid or attributed to a corporate Holder will 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 EU Parent-Subsidiary Directive of November 30, 2011 (2011/96/EU), as amended from time to time and (v) the general anti-abuse provision is not 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.

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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.

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% (applicable as of January 1, 2020) 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 Belgium 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.

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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.

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.

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.

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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 10 December 2020, the total of jurisdictions that have signed the multilateral competent authority agreement (“MCAA”) amounts to 110. 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.

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.

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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.

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.

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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 linked to 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. 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 €2,143.1 million (including €7.9 million under assets classified as held for sale) and €3,026.3 million on December 31, 2020. Cash used in operating activities amounted to €427.3 million for the year ended December 31, 2020. 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 for the coming years (and 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.

All our current financial investments 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 circumstances.

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 a limited amount of creditworthy customers, many of which are large pharmaceutical companies, spread over different geographical areas. To limit the risk of financial losses, a policy of only dealing with creditworthy counterparties has been developed.

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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,
	2020		2019		2018
	(Euro, in thousands)
60 - 90 days	€	—	€	87	€	236
90 - 120 days		—		—		12
more than 120 days	€	—	€	—	€	—

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 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 €51.7 million (2019: €57.8 million, 2018: €12.9 million); a 100 basis point decrease in interest rates would have decreased profit or loss, and equity, by approximately €51.7 million (2019: €57.8 million, 2018: €12.9 million). These scenarios assume our entire cash portfolio would immediately reprice at the new interest rates.

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 partner Gilead in U.S. dollars and acquire some consumables and materials in U.S. dollars, Swiss Francs, GB Pounds and Croatian Kuna.

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 agreement signed with Gilead for which payments are denominated in U.S. dollars.

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The exchange rate risk in case of a 10% change in the exchange rate amounts to:

	December 31,
	2020		2019		2018
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(116,690)	€	(133,373)	€	(27,200)
Increase in Euros - GB Pounds		303		113		100
Increase in Euros - CH Francs		2,013		538		208
Increase in Euros - HR Kunas		—		650		611
Increase in U.S. Dollars - GB Pounds	€	—	€	(894)	€	(923)

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, 2020), 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, 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.

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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.

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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.

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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, 2020. 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, 2020, 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. Management takes appropriate remediation and mitigation actions in case IT deficiencies would be identified. Our internal control over financial reporting includes also additional layers of business process controls to mitigate all remaining risks associated with IT deficiencies.

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. Based on this assessment, our management has concluded that our internal control over financial reporting as of December 31, 2020 was effective.

201

The effectiveness of internal control over financial reporting as of December 31, 2020 has been audited by Deloitte Bedrijfsrevisoren CVBA, 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 the 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

We have adopted a 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 2020.

Item 16C     Principal Accountant fees and services

Deloitte Bedrijfsrevisoren CVBA has served as our independent registered public accounting firm for 2020 and 2019. Our accountants billed the following fees to us for professional services in each of those fiscal years:

	Year ended December 31,
	2020		2019
	(Euro, in thousands)
Audit Fees	€	1,202.8	€	1,406.8
Audit-Related Fees		214.4		101.3
All Other Fees		938.4		194.8
Total	€	2,355.6	€	1,702.9

“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.

202

“All Other Fees” are any additional amounts billed for products and services provided by the principal accountant. For the year ended December 31, 2020, they mainly relate to non-audit fees, in particular related to IT and CSV services. For the year ended December 31, 2019, they related to non-audit fees, in particular related to the preparation of the commercial launch.

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 CVBA as described above and believes that they are compatible with maintaining Deloitte Bedrijfsrevisoren CVBA’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’ 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 the new articles of association is made availableas an exhibit to this annual report. For a more detailed discussion of the changes, see the section of this annual report titled “Item 6 Directors, senior management and employees—A. Directors and senior management—Our Supervisory Board”.

203

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.

· 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.

204

PART III

Item 17      Financial statements

Not applicable.

Item 18      Financial statements

See pages F‑1 through F‑68 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.

205

Index to Financial Statements

FINANCIAL SECTION

Audited consolidated financial statements as of and for the years ended December 31, 2020, 2019 and 2018

​

Contents
Reports of Independent Registered Public Accounting Firm	F-2
Consolidated Statement of Financial Position	F-6
Consolidated Statement of Operations	F-7
Consolidated Statement of Comprehensive Income/Loss (-)	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

REPORT 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, 2020, 2019 and 2018, 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, 2020, 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, 2020, 2019 and 2018, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2020, 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, 2020, 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 25, 2021, expressed an unqualified opinion on the Company's internal control over financial reporting. 

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 accounting treatment for the amendment to the license and collaboration agreement for filgotinib - Refer to Notes 2, 4, 6, and 24 to the financial statements

Critical Audit Matter Description 

On December 15, 2020, the Company entered into a binding term sheet with Gilead Sciences, Inc. (“Gilead”) (the “December 2020 Amendment”) to amend the license and collaboration agreement for filgotinib previously signed with Gilead in August 2019 (“the 2019 Collaboration”) and to agree on the transfer of development, manufacturing, commercialization and certain other rights to filgotinib in Europe.

F-2

As part of the IFRS-15 Revenue from Contracts with Customers (“IFRS 15”) analysis, the accounting treatment for the December 2020 Amendment required judgment in respect of the following:

• Timing of the contract modification: management’s assessment of the legally binding and enforceable nature of the term sheet resulted in management accounting for the contract modification in 2020;

• Determining the appropriate IFRS standard: the contract modification has been analysed under the requirements of IFRS 15, as Gilead is still considered to be a customer;

• Identification of performance obligations: no new or additional performance obligations were identified within the contract modification, resulting in only the partly satisfied filgotinib performance obligation being impacted via the cumulative catch-up method;

• Allocation of the total transaction price: the increased fixed consideration as a result of the modification has been allocated in its entirety to the filgotinib performance obligation, with the Company concluding that the change in the scope of the filgotinib performance obligation and the change in both the fixed and variable consideration are reflective of the updated stand-alone selling price for the remaining activities under this performance obligation;

•  Determination of the percentage of completion: in the process of estimating the costs to complete the Company considered that all ongoing and planned clinical trials (including the long term extension trials) would be completed through their final stage.

                

The evaluation of the reasonableness of management’s estimates and assumptions related to these specific critical judgments and accounting estimates require a high degree of auditor judgment and a significant degree of extra audit effort, including the need to involve our accounting specialists.

F-3

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures to address all critical judgments related to the December 2020 Amendment included reading the binding term sheet and management’s accounting position paper to understand the terms of each contract and evaluate management’s conclusions.

In relation to management’s critical judgments related to the December 2020 Amendment, our audit procedures included the following:

•        We tested the effectiveness of controls over the accounting treatment of significant unusual transactions, which is one of management’s controls over the application of IFRS 15.

•        With the assistance of our accounting specialists:

•        We evaluated the legally binding and enforceable nature of the term sheet to assess the date of the contract modification;

•       We tested management’s identification of the applicable IFRS standard and the distinct performance obligations by evaluating whether the underlying goods, services, or both were highly interdependent and interrelated with one or both of the performance obligations that were partly satisfied at the time of the contract modification.

•        We read minutes of board and committee meetings as well as management’s position paper to understand the parties intended use of the licenses and other obligations included in the December 2020 Amendment;

•        We evaluated whether the change in the scope of the filgotinib performance obligation resulting from the December 2020 Amendment and the change in both the fixed and variable consideration are reflective of the updated stand-alone selling price for the remaining activities under this performance obligation.

•        We assessed the assumptions made in estimating the costs to complete the filgotinib development activities by comparing these with management’s past experience, external information (including information from Gilead) and other observable evidence and by performing sensitivities on the current year’s revenue recognition resulting from changes to these estimates.

Zaventem, Belgium, March 25, 2021

/s/ Deloitte Bedrijfsrevisoren/Réviseurs d’Entreprises CVBA/SCRL

We have served as the Company's auditor since 2000.

F-4

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, 2020, 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, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, 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, 2020, of the Company and our report dated March 25, 2021 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.

Zaventem, Belgium, March 25, 2021

/s/ Deloitte Bedrijfsrevisoren/Réviseurs d’Entreprises CVBA/SCRL

We have served as the Company's auditor since 2000.

F-5

Consolidated Statement of Financial Position

	December 31,
	2020		2019		2018		Notes
	(Euro, in thousands)
Assets
Intangible assets	€	67,565	€	24,927	€	3,632	13
Property, plant and equipment		103,378		66,052		23,137	14
Deferred tax assets		4,475		4,205		2,514	21
Non-current trade receivables		50,000		—		—	17
Non-current R&D incentives receivables		111,624		93,407		73,443	16
Other non-current assets		11,343		14,091		7,919	15
Non-current assets		348,384		202,682		110,645
Trade and other receivables		148,418		54,009		18,609	17
Current R&D incentives receivables		24,104		21,949		11,203	16
Current financial investments		3,026,278		3,919,216		—	18
Cash and cash equivalents		2,135,187		1,861,616		1,290,796	19
Other current assets		11,953		9,138		8,244	17
Current assets from continuing operations		5,345,941		5,865,927		1,328,851
Assets classified as held for sale		23,406		—		—	25
Total current assets		5,369,347		5,865,927		1,328,851
Total assets	€	5,717,731	€	6,068,609	€	1,439,496
Equity and liabilities
Share capital	€	291,312	€	287,282	€	236,540	20
Share premium account		2,727,840		2,703,583		1,277,780	20
Other reserves		(10,907)		(4,842)		(735)
Translation differences		(3,189)		(1,142)		(1,557)
Accumulated losses		(334,701)		(109,223)		(297,779)
Total equity		2,670,355		2,875,658		1,214,249
Retirement benefit liabilities		14,996		8,263		3,764
Non-current lease liabilities		23,035		19,558		—	22
Other non-current liabilities		8,096		6,989		1,578	23
Non-current deferred income		2,365,974		2,586,348		—	24
Non-current liabilities		2,412,101		2,621,158		5,342
Current lease liabilities		6,401		5,826		—	22
Trade and other liabilities		172,386		143,434		68,928	23
Current tax payable		1,248		2,037		1,175	11
Current financial instruments		3,164		6,198		—	9
Current deferred income		443,159		414,298		149,801	24
Current liabilities from continuing operations		626,357		571,793		219,905
Liabilities directly associated with assets classified as held for sale		8,917		—		—	25
Current liabilities		635,274		571,793		219,905
Total liabilities		3,047,375		3,192,951		225,247
Total equity and liabilities	€	5,717,731	€	6,068,609	€	1,439,496

The accompanying notes form an integral part of these financial statements.

F-6

Consolidated Statement of Operations

	Year ended December 31,
	2020		2019 (*)		2018 (*)		Notes
	(Euro, in thousands, except per share data)
Revenues	€	478,053	€	834,901	€	278,666	6
Other income		52,207		50,896		29,000	6
Total revenues and other income		530,260		885,797		307,666
Research and development expenses		(523,667)		(420,090)		(316,222)	7
Sales and marketing expenses		(66,468)		(24,577)		(4,146)	7
General and administrative expenses		(118,757)		(72,382)		(34,377)	7
Total operating expenses		(708,892)		(517,049)		(354,746)
Operating income/loss (-)		(178,632)		368,748		(47,080)
Fair value re-measurement of share subscription agreement and warrants		3,034		(181,644)		—	9
Other financial income		18,667		21,389		18,264	10
Other financial expenses		(152,844)		(59,968)		(2,602)	10
Income/loss (-) before tax		(309,775)		148,525		(31,417)
Income taxes		(1,226)		165		(822)	11
Net income/loss (-) from continuing operations		(311,001)		148,689		(32,240)	12
Net income from discontinued operations, net of tax		5,565		1,156		2,981	25
Net income/loss (-)	€	(305,436)	€	149,845	€	(29,259)
Net income/loss (-) attributable to:
Owners of the parent		(305,436)		149,845		(29,259)
Basic income/loss (-) per share	€	(4.69)	€	2.60	€	(0.56)	12
Diluted income/loss (-) per share	€	(4.69)	€	2.49	€	(0.56)	12
Basic income/loss (-) per share from continuing operations	€	(4.78)	€	2.58	€	(0.62)
Diluted income/loss (-) per share from continuing operations	€	(4.78)	€	2.47	€	(0.62)

(*) The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

The accompanying notes form an integral part of these financial statements.

F-7

Consolidated Statement of Comprehensive Income/Loss (-) 

	Year ended December 31,
	2020		2019 (*)		2018 (*)		Notes
	(Euro, in thousands)
Net income/loss (-)	€	(305,436)	€	149,845	€	(29,259)
Items that will not be reclassified subsequently to profit or loss:
Re-measurement of defined benefit obligation		(6,065)		(4,107)		(94)
Items that may be reclassified subsequently to profit or loss:
Translation differences, arisen from translating foreign activities		(1,024)		415		197
Realization of translation differences upon liquidation of foreign operations		(1,023)		—		—
Other comprehensive income/loss (-), net of income tax		(8,112)		(3,692)		103
Total comprehensive income/loss (-) attributable to:
Owners of the parent		(313,548)		146,154		(29,155)
Total comprehensive income/loss (-) attributable to owners of  the parent arises from:
Continuing operations		(318,841)		145,050		(32,159)
Discontinued operations		5,293		1,104		3,003
Total comprehensive income/loss (-)	€	(313,548)	€	146,154	€	(29,155)

(*) The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued operations in 2020.

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, 2017	€	233,414	€	993,025	€	(1,754)	€	(1,260)	€	(211,441)	€	1,011,983
Change in accounting policy ( modified retrospective application IFRS 15)										(83,220)		(83,220)
Change in accounting policy ( modified retrospective application IFRS 9)								619		(619)		—
Restated total equity at January 1, 2018		233,414		993,025		(1,754)		(641)		(295,280)		928,766
Net loss										(29,259)		(29,259)
Other comprehensive loss						197		(94)				103
Total comprehensive loss						197		(94)		(29,259)		(29,155)
Share-based compensation										26,757		26,757
Issue of new shares		16,021		280,167								296,188
Share issue costs		(15,964)										(15,964)
Exercise of subscription rights		3,069		4,588								7,657
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 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 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

The accompanying notes form an integral part of these financial statements.

F-9

Consolidated Statement of Cash Flows

	2020		2019		2018		Notes
	(Euro, in thousands)
Net income/loss (-)	€	(305,436)	€	149,845	€	(29,259)
Adjustment for non-cash transactions		230,723		248,027		21,753	26
Adjustment for items to disclose separately under operating cash flow		4,067		(7,731)		(4,389)	26
Adjustment for items to disclose under investing and financing cash flows		(2,472)		(5,061)		(668)	26
Change in working capital other than deferred income		(146,092)		12,698		19,922	26
Increase/decrease (-) in deferred income		(207,787)		2,804,202		(153,312)	24
Cash generated/used (-) in operations		(426,998)		3,201,980		(145,953)
Interest paid		(9,033)		(1,158)		(1,063)
Interest received		10,054		7,852		4,558
Income taxes paid		(1,358)		(57)		(8)
Net cash flows generated/used (-) in operating activities		(427,336)		3,208,617		(142,466)
Purchase of property, plant and equipment		(42,522)		(22,385)		(10,392)	14
Purchase of and expenditure in intangible fixed assets		(48,793)		(23,300)		(3,325)	13
Proceeds from disposal of intangible assets		—		—		1	13
Proceeds from disposal of property, plant and equipment		49		—		—	14
Purchase of current financial investments		(4,574,206)		(4,787,284)		—	18
Interest received related to current financial investments		3,500		5,059		—	18
Sale of current financial investments		5,415,316		1,063,344		—	18
Acquisition of financial assets		(2,681)		(177)		(4,559)	15
Proceeds from sale of financial assets held at fair value through profit or loss		6,626		82		2,361	15
Net cash flows generated/used (-) in investing activities		757,288		(3,764,660)		(15,914)
Payment of lease liabilities and other debts		(6,247)		(5,091)		(5)	22
Proceeds from capital and share premium increases, gross amount		—		960,087		296,188	20
Issue cost paid, related to capital and share premium increases		—		(4,447)		(15,964)	20
Proceeds from capital and share premium increases from exercise of subscription rights		28,287		17,167		7,657	20
Proceeds from capital and share premium increases from exercise of warrant A by Gilead		—		368,035		—	20
Net cash flows generated in financing activities		22,040		1,335,751		287,876
Increase in cash and cash equivalents	€	351,994	€	779,708	€	129,497
Cash and cash equivalents at beginning of year	€	1,861,616	€	1,290,796	€	1,151,211	19
Transfer to current financial investments		—		(198,922)		—
Increase in cash and cash equivalents		351,994		779,708		129,497
Effect of exchange rate differences on cash and cash equivalents		(70,539)		(9,966)		10,089
Cash and cash equivalents at end of year	€	2,143,071	€	1,861,616	€	1,290,796	19

The accompanying notes form an integral part of these financial statements.

F-10

	December 31,
	2020		2019		2018		Notes
	(Euro, in thousands)
Current financial investments	€	3,026,278	€	3,919,216	€	—	18
Cash and cash equivalents		2,135,187		1,861,616		1,290,796	19
Cash and cash equivalents classified as assets held for sale		7,884		—		—
Current financial investments and cash and cash equivalents	€	5,169,349	€	5,780,832	€	1,290,796

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. 

R&D

The research and development (“R&D”) operations are specialized in the discovery and development of small molecules. Our ambition is to become a leading global biotechnology company focused on the development and commercialization of novel medicines. Our strategy is to leverage our unique and proprietary target discovery platform, which facilitates our discovery and development of therapies with novel modes of action.

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) and Galapagos Biopharma Italy S.r.l. (Milan, Italy).

Our continuing operations had 1,304 employees on December 31, 2020 working in the operating facilities in Mechelen (the Belgian headquarters), the Netherlands, France, Switzerland, Germany, Italy, Spain, the United States, and United Kingdom.

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 fee-for-service segment). Fidelta d.o.o. had 185 employees on December 31, 2020 working in the operating facilities in Croatia. As net assets associated with our fee-for-service business will be recovered principally through a sale transaction rather than through continuing use, we classified these assets and the associated liabilities 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 (including the customary adjustments for cash and working capital).

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 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. In November 2020, Gilead however declined to exercise its option for GLPG1972.

F-12

Since October 22, 2019, Gilead has had two representatives on the supervisory board of Galapagos (Daniel O'Day and Linda Higgins).

During 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, Gilead and we agreed to amend our existing collaboration for the commercialization and development of filgotinib. Under the new arrangement, we will assume sole responsibility in Europe for filgotinib in RA and in all other potential future indications and will fully support the costs of certain of the development activities. In connection with the changes in responsibility for the commercialization and development of filgotinib in Europe, we received a payment of €35.0 million ($42.5 million) from Gilead in January 2021 and are entitled to additional payments of €125.0 million ($151.8 million), of which €75.0 million will be paid in 2021 and €50.0 million will be paid in 2022. In addition, we will no longer be eligible to receive future milestone payments relating to filgotinib in Europe, and we will pay royalties on net sales of Jyseleca (filgotinib) in Europe to Gilead as from January 1, 2024. 

This modification 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)) 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. 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, but declined to exercise its option in November 2020. 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. 

F-13

Revised filgotinib collaboration

Under the revised agreement, we will 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 will be subject to applicable local legal, regulatory and consultation requirements. The parties intend to transfer most activities by December 31, 2021 and complete the transition by December 31, 2022. Beginning on January 1, 2021, Galapagos will 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 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 (defined as “Group B activities”): 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. All commercial economics on filgotinib in Europe will transfer to Galapagos 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 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 will be split between a €110 million payment in 2021 (of which €35 million has been received in January 2021) and a €50 million payment in 2022 and is subject to certain adjustments for higher than budgeted development costs. In addition, Galapagos 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 (excluding the remaining approval milestones in Europe that became forfeited), 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. 

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 on 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 of the closing of the subscription agreement 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. Gilead did not exercise any of its warrants during 2020 and warrant A came to maturity in October 2020. Gilead’s ownership slightly diluted to 25.54% at December 31, 2020. 

F-14

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, 2019

IFRS 16 Leases 

The above new applicable standard affected the consolidated financial statements as follows:

We adopted IFRS 16 on January 1, 2019, in accordance with the transitional provisions of IFRS 16, using the modified retrospective approach. Consequently, the cumulative effect of adopting IFRS 16 was recognized as an adjustment to the opening balance of retained earnings as at January 1, 2019, with no restatement of the comparative figures.

On adoption of IFRS 16, we recognized lease liabilities in relation to leases which had previously been classified as ‘operating leases’ under IAS 17. These liabilities were measured at the present value of the remaining lease payments and discounted using our incremental borrowing rate as of January 1, 2019. Our weighted average incremental borrowing rate applied to the lease liabilities on January 1, 2019 was 1.55%.

The differences between our total operating lease commitments as reported in our consolidated financial statements of December 31, 2018 and the total lease liabilities recognized in our statement of financial position as at January 1, 2019 are summarized below.

	(Euro, in thousands)
Operating lease commitments disclosed as at December 31, 2018	€	27,704
Less : discounting effect using the lessee's incremental borrowing rate at the date of initial application		(1,223)
Less : other		(569)
Lease liability recognized as at January 1, 2019		25,912
Of which are :
current lease liabilities		4,516
non-current lease liabilities	€	21,396

The change in accounting policy affected the statement of financial position as at January 1, 2019 as follows:

	January 1, 2019
	(Euro, in thousands)
Property, plant and equipment (right-of-use assets)	€	26,406
Other current assets (prepaid expenses)		(494)
Effect on total assets		25,912
Accumulated losses		416
Lease liabilities (current and non-current)		25,912
Deferred income		(416)
Effect on total equity and liabilities	€	25,912

F-15

We applied the following practical expedients, as permitted by IFRS 16, on transition date: 

▪     Reliance on the previous definition of a lease (as provided by IAS 17) for all contracts that existed on the date of initial application; 

▪     The use of a single discount rate to a portfolio of leases with reasonably similar characteristics; 

▪     Reliance on previous assessments on whether leases are onerous instead of performing an impairment review;

▪     The accounting for operating leases with a remaining lease term of less than 12 months as at January 1, 2019 as short-term leases; 

▪     No recognition of right-of-use assets and liabilities for leases of low value assets.

We refer to our updated accounting policy on leases as a result of the adoption of IFRS 16.

Other new standards and interpretations applicable for the annual period beginning on January 1, 2019 did not have any impact on our consolidated financial statements.

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 any material impact on our consolidated financial statements. 

STANDARDS AND INTERPRETATIONS PUBLISHED, BUT NOT YET APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2020

A number of new standards are effective for annual periods beginning on or after January 1, 2021 with earlier adoption permitted. However we have not early adopted new or amended standards in preparing our consolidated financial statements. Of the standards that are not yet effective, we expect no standard to have a material impact on our financial statements in the period of initial application.

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.

F-16

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

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.

Licenses, 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.

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.

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. 

F-17

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 over 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

As explained in the beginning of this note, we adopted IFRS 16 on January 1, 2019, resulting in a change in our accounting policy.

Accounting policy as from January 1, 2019

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 is 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 such 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 statement of operations over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

F-18

Accounting policy until January 1, 2019

Until the end of 2018, leases of property, plant and equipment were classified as either finance or operating leases.

Leases were classified as finance leases whenever the terms of the lease substantially transferred all the risks and rewards of ownership to the lessee. All other leases were classified as operating leases.

Assets held under finance leases were recognized as our assets at their fair value or, if lower, at the present value of the minimum lease payments, each determined at the inception of the lease. These assets held under finance leases were depreciated over their useful lives on the same bases as owned assets or, where shorter, over the term of the related lease agreement. The corresponding liability to the lessor was included in the balance sheet as a finance lease obligation. The payments were divided proportionally between the financial costs and a diminution of the outstanding balance of the obligation, so that the periodic interest rate on the outstanding balance of the obligation would be constant. Interest was recognized in the statement of operations, unless it was directly attributable to the corresponding asset, in which case it was capitalized.

Rents paid on operating leases were charged to income on a straight-line basis over the term of the relevant lease. Benefits received and receivable as an incentive to enter into an operating lease were also spread on a straight-line basis over the lease term.

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 don’t have financial debts at December 31, 2020.

(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:

F-19

-         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 our 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 short-term deposits, 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.

Cash

Cash are financial assets measured at amortized cost and comprise cash balances and short-term deposits with maturities of three months or less from the acquisition date that are subject to an insignificant risk of changes in their value.

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Cash equivalents measured at amortized costs

Cash equivalents measured at amortized cost comprise short-term deposits that are readily convertible to cash and 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

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Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of transaction. We use monthly transaction rates based on the closing exchange rates of the foreign currencies on the last business day of the month preceding the date of the 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 milestones, license fees, non-refundable upfront fees and royalties received in connection with collaboration and license agreements. We also generate 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:

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(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 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.

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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.

We refer to note 6 for detailed information per agreement and to our Critical accounting judgments and key sources of estimation uncertainty for more information.

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OTHER 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.

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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 Scheme 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.

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SHARE-BASED PAYMENTS

a/ Equity-settled share based payments

We grant equity-settled incentives to certain employees, supervisory board members 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 rights 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 RSUs (Restricted Stock Units)

Management board members and other employees were granted RSUs in 2019 and 2020. 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 RSUs are measured based on the volume weighted 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 RSUs in cash.

PROVISIONS

Provisions are recognized on the balance sheet 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.

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(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

The group had two reportable segments, R&D and fee-for-service business. Due to the disposal of Fidelta d.o.o. (our fee-for-service segment), we have reported this segment as discontinued operations at December 31, 2020. Galapagos is therefore operating as a single operating segment.

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.

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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. The prior-year consolidated balance sheet is not restated.

On November 23, 2020, we signed a share purchase agreement in relation to the sale of our fee-for-service business. As the net assets associated with our fee-for-service business will be recovered principally through a sale transaction rather than through continuing use, we classified these assets and the associated liabilities as held for sale in our financial statements for the year ended December 31, 2020.

On January 4, 2021, we concluded the sale of our fee-for-service business to Selvita S.A. 

Where applicable and in accordance with IFRS 5, we have restated the 2018 and 2019 comparatives in the consolidated statement of operations and in the notes to consider the impact of classifying the Fidelta business as discontinued operations in 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 uncertainty 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

• Although formal executive contracts are still being finalized with Gilead, we assessed that the impact of the modification must already be accounted for in our consolidated financial statements for the year ended December 31, 2020 given the legally binding and enforceable character of the term sheet that was signed between us and Gilead on December 15, 2020 as a consequence of both parties’ decision to amend our existing agreement for the commercialization and development of filgotinib.

•
Despite our obligation to pay future sales-based royalties to Gilead and a change in the governance structure for the development activities, we concluded that all activities are still beneficial for the further development of filgotinib, for which Gilead still owns the ex-Europe rights. The contract modification has 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 subsequently concluded that there continues to be only one performance obligation with respect to filgotinib after the contract modification.

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Identification of the performance obligation

• The modification 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. 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 that all ongoing and planned clinical trials (including long term extension trials) would be completed until their final stage.

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, 2020. 

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. 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. Our total deferred income balance related to this filgotinib performance obligation amounts to €818.7 million at December 31, 2020.

5. Segment information

Operational segmentation

The group had two reportable segments, R&D and fee-for-service business. Due to the disposal of Fidelta d.o.o. (our fee-for-service segment), we reported this segment as discontinued operations. Galapagos is therefore operating as a single operating segment.

GEOGRAPHICAL INFORMATION

In 2018, 2019 and 2020, our  continuing operations were mainly located in Belgium, France and the Netherlands.

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Following table summarizes the revenues by destination of customer:

	Year ended December 31,
	2020		2019		2018
	(Euro, in thousands)
United States of  America	€	472,445	€	793,873	€	116,680
Europe		5,607		41,028		161,986
Total	€	478,053	€	834,901	€	278,666

Following table summarizes the revenues by major customers:

		Year ended December 31,
		2020				2019			2018
Spilt up of revenues by major customers		(Euro, in thousands)	%			(Euro, in thousands)	%		(Euro, in thousands)	%
Gilead:
United States of  America (1)	€	472,445	99%		€	793,873	95%	€	116,640	42%
Europe (1)		1,460	0%			(4,570)	-1%		7,793	3%
AbbVie:
Europe		(52)	0%			26,356	3%		89,936	32%
Novartis:
Europe		4,125	1%			19,177	2%		55,218	20%
Les Laboratoires Servier:
Europe		—	0%			—	0%		9,000	3%
Total revenues from major customers	€	477,978	100%	€		834,836	100%		278,587	100%

(1) Following the contract amendment with Gilead in 2019, 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, 2020, we held €171 million (€91 million in 2019; €27 million in 2018) of property, plant and equipment and intangible assets distributed as follows: 

	December 31,
	2020		2019 (*)		2018 (*)
		(Euro, in thousands)
Belgium	€	113,524	€	57,007	€	13,134
France		18,398		18,102		5,413
The Netherlands		28,210		7,951		3,947
Croatia		—		6,182		3,661
Switzerland		7,668		1,057		519
Spain		2,755		—		—
Other		388		681		95
Total	€	170,943	€	90,979	€	26,769

(*) 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 years ended December 31, 2019 and December 31, 2018. 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 and other income

 REVENUES

The following table summarizes the revenues for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Recognition of non-refundable upfront payments and license fees	€	411,417	€	812,058	€	196,486
Milestone payments		46,261		2,878		73,394
Reimbursement income		4,073		19,900		8,722
Other revenues		70		66		63
Commercial revenues		16,232		—		—
Total revenues	€	478,053	€	834,901	€	278,666

The following table summarizes details of revenues for the years ended December 31, 2020 and 2019 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, other revenues and commercial revenues.

	Over time	Point in time		2020		2019
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	411,417	€	812,058
Gilead collaboration agreement for ziritaxestat				-		666,968
Gilead collaboration agreement for filgotinib(1)				181,816		62,602
Gilead collaboration agreement for drug discovery platform				229,601		80,918
AbbVie collaboration agreement for CF				-		1,569
Milestone payments				46,261		2,878
Gilead collaboration agreement for filgotinib (1)				46,261		(21,187)
AbbVie collaboration agreement for CF				-		24,065
Reimbursement income				4,073		19,900
Novartis collaboration agreement for MOR106				4,125		19,177
AbbVie collaboration agreement for CF				(52)		723
Other revenues				70		66
Other revenues				70		66
Commercial revenues				16,232		-
Sale of goods				2
Royalties				16,227
Other commercial revenues				2
Total revenues			€	478,053	€	834,901
(1) Following the contract amendment with Gilead in 2019, the revenue recognized for filgotinib for the year ended December 31, 2019, included a negative catch-up effect at 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.

							(Euro, in thousands)
Allocation of transaction price		Filgotinib agreement 2015		Milestones achieved during 2015-2019		Option, License and Collaboration agreement (July 14, 2019)		December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020
Upfront consideration	€	275,558			€	3,569,815	€	3,845,373			€	160,000	€	4,005,373
Milestones achieved			€	104,171				104,171	€	90,192				194,363
Royalties								—		16,227				16,227
Impact initial valuation of share subscription		39,003				85,601		124,604						124,604
		314,561		104,171		3,655,416		4,074,148		106,419		160,000		4,340,567
Less :
Warrants issuance liabilities
Warrant A								(43,311)						(43,311)
Initial warrant B								(2,545)						(2,545)
Subsequent warrant B								(16,184)		8,325				(7,859)
		314,561		104,171		3,655,416		4,012,108		114,744		160,000		4,286,852
Allocation to performance obligations
Ziritaxestat						666,967		666,967						666,967
Filgotinib (1)	€	314,561	€	104,171		641,663		1,060,395		106,419		160,000		1,326,814
Drug discovery platform (10 years)					€	2,284,747	€	2,284,747		8,325				2,293,072

(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, considering the effects of the amendment of December 15, 2020.

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 will be 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). 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 24 for more information). The value initially allocated to the subsequent warrant B reflects the fair value of the underlying liability on December 31, 2019. On December 31, 2020 the value of the subsequent warrant B decreased to €7.9 million, driven by the decrease of our share price in 2020, partly compensated by an increase in the implied volatility.

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On December 15, 2020 we and Gilead signed a term sheet modifying our existing collaboration for filgotinib. As a result of this modification an additional consideration of €160.0 million was allocated to the filgonitib performance obligation.

A summary of all current contracts with customers is given below:

Collaboration 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, clinical and 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 the 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 the new arrangement, we will assume sole responsibility in Europe for filgotinib in RA and in all future indications.

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.

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	·	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 modification of December 15, 2020 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. As a consequence, the increase in the transaction price of €160.0 million as a result of this modification has been allocated in its entirety to the filgotinib performance obligation.
Financing component
	·	There are two performance obligations determined in the agreement with Gilead for which the period between the transfer of the promised goods/services to Gilead and the payment of the underlying consideration by Gilead exceeds one year, being the performance obligation relating to the drug discovery platform and the performance obligation resulting from the filgotinib amendment. Although the consideration paid for the drug discovery platform will be recognized over a period of 10 years as from receipt of the funds, management concluded not to consider any financing component for this performance obligation as the granting of an exclusive access and option rights on day one is the predominant value of the drug discovery platform performance obligation. As a consequence, management has considered it is only 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
	·	The transaction price allocated to this performance obligation reflects our assessment of the stand-alone selling price of this performance obligation and was valued based on a discounted cash flow approach including, amongst others, assumptions on the estimated market share and size, peak sales and probability of success.
	·	This performance obligation was completely satisfied as at December 31, 2019. Following the very recent discontinuation of the ziritaxestat trials, we don’t 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 standalone selling price of the filgotinib amendment was determined through the cost-plus-margin approach. Management estimated that an appropriate margin is indirectly embedded in the increased involvement in the development and global strategy of filgotinib, our sole responsibility for filgotinib in Europe and the accompanying increase in the risk.
	·	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 we reported €16.2 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 modification from 2020 leading to a small decrease in the percentage of completion. Nevertheless, we recognized higher revenues in financial year 2020 as compared to financial year 2019 for  filgotinib because the total transaction price increased due to the contract modification (€160.0 million) and the milestone payments obtained in 2020 for the regulatory approval of filgotinib for RA in Europe and Japan for a total amount of $105 million (€90.2 million).

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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 the 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, 2020.

Collaboration with Servier

In 2010 we signed a license and collaboration agreement with Servier in the field of osteoarthritis. Any increase in the transaction price from future potential development and regulatory milestones, sales based milestones and royalties, will be allocated to the license and will be fully recognized as revenue at a point in time when achieved, as our performance obligation towards Servier has been fully satisfied.

The contract signed with Servier on May 8, 2018 took over the terms of the previous agreement but additionally included the framework of a joint Phase 2 clinical trial program in which both parties collaborate, share costs and mutually exchange services. We concluded that this contract modification was not in the scope of IFRS 15 because there is a mutual exchange of services between Servier and Galapagos, Servier is not assessed as a customer but as a collaboration partner. Any cost reimbursement from our collaboration partner is not recognized as revenue but accounted for as a decrease of the related expenses.

In December 2020, Servier decided to terminate the agreement. Such termination became effective in March 2021. As a result of such termination, rights to the GLPG1972 were returned to Galapagos, 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.

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.

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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 was considered fully satisfied at December 31, 2019.

For the years ended December 31, 2019 and 2018

The following table summarizes details of revenues for the years ended December 31, 2019 and 2018 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, and other revenues.  

	Over time	Point in time		2019		2018
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	812,058	€	196,486
Gilead collaboration agreement for ziritaxestat				666,968		-
Gilead collaboration agreement for filgotinib(1)				62,602		96,809
Gilead collaboration agreement for drug discovery platform				80,918		-
AbbVie collaboration agreement for CF				1,569		52,176
Novartis collaboration agreement for MOR106				-		47,500
Milestone payments				2,878		73,394
Gilead collaboration agreement for filgotinib(1)				(21,187)		27,623
AbbVie collaboration agreement for CF				24,065		36,771
Servier collaboration agreement for osteoarthritis				-		9,000
Reimbursement income				19,900		8,722
Novartis collaboration agreement for MOR106				19,177		7,718
AbbVie collaboration agreement for CF				723		989
Other reimbursement income				-		16
Other revenues				66		63
Other revenues				66		63
Total revenues			€	834,901	€	278,666

(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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OTHER INCOME

The following table summarizes other income for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Grant income	€	5,452	€	6,549	€	1,609
R&D incentives		45,951		43,923		26,912
Other income		804		425		479
Total other income	€	52,207	€	50,896	€	29,000

7.       Operating costs

Operating result has been calculated after charging (-) / crediting:

RESEARCH AND DEVELOPMENT EXPENDITURE

The following table summarizes research and development expenditure for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(161,509)	€	(118,875)	€	(75,819)
Subcontracting		(301,841)		(255,725)		(203,406)
Disposables and lab fees and premises costs		(22,349)		(19,573)		(20,967)
Depreciation		(11,707)		(9,330)		(4,846)
Professional fees		(12,692)		(1,834)		(262)
Other operating expenses		(13,570)		(14,753)		(10,922)
Total R&D expenses	€	(523,667)	€	(420,090)	€	(316,222)

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All research and development expenditures are tracked against detailed budgets and allocated by individual project. The table below summarizes our research and development expenditure for the years ended December 31, 2020, 2019 and 2018, broken down by program.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Filgotinib program	€	(126,879)	€	(100,032)	€	(66,138)
Ziritaxestat program		(55,902)		(75,951)		(72,718)
OA program on GLPG1972		(22,966)		(19,958)		(15,751)
Toledo program		(87,107)		(47,204)		(20,967)
CF program		(69)		(3,897)		(30,137)
AtD program on MOR106		(7,618)		(24,051)		(14,999)
Other programs		(223,126)		(148,997)		(95,512)
Total R&D expenses	€	(523,667)	€	(420,090)	€	(316,222)

SALES AND MARKETING EXPENSES

The following table summarizes the sales and marketing expenses for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(31,727)	€	(7,558)	€	(2,282)
Depreciation		(140)		(61)		—
External outsourcing costs		(27,174)		(15,721)		(1,284)
Professional fees		(3,420)		(459)		—
Other operating expenses		(4,007)		(777)		(580)
Total sales and marketing expenses	€	(66,468)	€	(24,577)	€	(4,146)

GENERAL AND ADMINISTRATIVE EXPENSES

The following table summarizes the general and administrative expenses for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(70,110)	€	(51,204)	€	(24,740)
Depreciation		(5,147)		(1,421)		(449)
Legal and professional fees		(25,592)		(11,568)		(4,026)
Other operating expenses		(17,908)		(8,190)		(5,162)
Total general and administrative expenses	€	(118,757)	€	(72,382)	€	(34,377)

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8. Staff costs

The following table illustrates the personnel costs for the years 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Wages and salaries	€	(139,681)	€	(113,660)	€	(57,237)
Social security costs		(26,471)		(14,566)		(10,290)
Pension costs		(7,337)		(4,715)		(2,994)
Costs related to subscription right plans		(79,959)		(38,297)		(26,757)
Other personnel costs		(9,897)		(6,399)		(5,564)
Total personnel costs	€	(263,345)	€	(177,636)	€	(102,842)

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, 2020 and 2019, can be split up as follows:

		Year ended December 31,
	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		3,034		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	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	€	—

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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	2020		2019
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(6,198)
Fair value of financial liability at warrant approval date			€	(2,545)
Change in fair value recorded in profit or loss		3,034		(3,653)
Fair value on December 31,	€	(3,164)	€	(6,198)

10. Other financial income / expenses

The following table summarizes other financial income and expense for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Other financial income:
Interest income	€	10,030	€	14,305	€	5,217
Effect of discounting long term R&D incentives receivables		93		93		199
Currency exchange gain		4,697		775		10,978
Fair value gain on financial assets held at fair value through profit or loss		2,397		5,355		1,203
Fair value gain on current financial investments		—		611		—
Gain upon sale of financial assets held at fair value through profit or loss		—		2		667
Other finance income		1,450		248		—
Total other financial income		18,667		21,389		18,264
Other financial expenses:
Interest expenses		(9,389)		(1,268)		(780)
Effect of discounting long term deferred income		(16,278)		(6,900)		—
Currency exchange loss		(110,416)		(47,720)		(1,057)
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		(773)		(380)		(764)
Total other financial expense		(152,844)		(59,968)		(2,602)
Total net other financial expense (-)/ income	€	(134,177)	€	(38,579)	€	15,663

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11. Income taxes

INCOME TAXES

The following table summarizes the income tax recognized in profit or loss for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
	(Euro, in thousands)
Current tax	€	(1,069)	€	(1,372)	€	(584)
Deferred tax		(157)		1,537		(238)
Income taxes	€	(1,226)	€	165	€	(822)

TAX LIABILITIES

The below table illustrates the tax liabilities related captions in the consolidated statement of financial position as at December 31, 2020, 2019 and 2018.

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Current tax payable	€	1,248	€	2,037	€	1,175
Total tax liabilities	€	1,248	€	2,037	€	1,175

On December 31, 2020, the tax liabilities were primarily related to our subsidiaries operating on a cost plus basis.

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TAXES RECOGNIZED IN STATEMENT OF OPERATIONS

For the purpose of the disclosure below corporation tax was calculated at 25% (2019: 29.58%, 2018: 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,
	2020		2019		2018
	(Euro, in thousands)
Income/loss (-) before tax	€	(309,775)	€	148,525	€	(31,417)
Income tax debit/credit (-), calculated using the Belgian statutory tax rate on the accounting income/loss (-) before tax (theoretical)		(77,444)		43,934		(9,293)
Tax expenses/income (-) in statement of operations (effective)		1,226		(165)		822
Difference in tax expense/income to explain	€	78,670	€	(44,097)	€	10,116
Effect of tax rates in other jurisdictions	€	184	€	960	€	599
Effect of non-taxable revenues		(10,196)		(13,079)		(11,547)
Effect of share based payment expenses without tax impact		19,990		10,318		7,530
Effect of expenses/income (-) not subject to tax		(639)		53,394		175
Effect of non tax-deductible expenses		1,053		724		914
Effect of recognition of previously non recognized deferred tax assets		(475)		(2,286)		(532)
Effect of tax losses (utilized) reversed		(150)		(136)		(150)
Effect of under or over provision in prior periods		(25)		30		—
Effect of non-recognition of deferred tax assets		69,141		47,413		13,127
Effect of derecognition of previously recognized deferred tax assets		157		—		—
Effect of use of investment deduction		(370)		—		—
Effect of use of IID		—		(141,435)		—
Total explanations	€	78,670	€	(44,097)	€	10,116

Non-taxable revenues for the years ended December 31, 2020, 2019 and 2018 related to non-taxable subsidies and tax credits. Expenses/income (-) not subject to tax for the years ended 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 in 2019 (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 subscription rights, 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,
	2020		2019		2018
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(305,436)	€	149,845	€	(29,259)
Number of shares (thousands)
Weighted average number of shares for the purpose of basic income/loss (-) per share		65,075		57,614		52,113
Basic income/loss (-) per share (Euros)	€	(4.69)	€	2.60	€	(0.56)
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(305,436)	€	149,845	€	(29,259)
Number of shares (thousands)
Weighted average number of shares for the purpose of diluted income/loss (-) per share		65,075		57,614		52,113
Number of dilutive potential ordinary shares		—		2,498		—
Diluted income/loss (-) per share (Euros)	€	(4.69)	€	2.49	€	(0.56)

As our operations reported a net loss in 2020 and 2018, the outstanding subscription rights (specified in note 29) have an anti-dilutive effect rather than a dilutive effect. Consequently, basic and diluted loss per share were the same for 2020 and 2018.

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13. Intangible assets

		Software & databases		Brands, licenses, patents & know-how		Contract costs		Total
	(Euro, in thousands)
Acquisition value
On January 1 , 2018		€	7,496	€	8,586	€	—	€	16,082
Additions			1,561		1,763				3,325
Sales and disposals			(20)		(7,630)				(7,650)
Translation differences			74						74
On December 31, 2018			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
Amortization and impairment
On January 1 , 2018		€	6,514	€	7,070	€	—	€	13,587
Amortization			681		426				1,107
Impairment					1,083				1,083
Sales and disposals			(20)		(7,630)				(7,650)
Translation differences			74						74
On December 31, 2018			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
Carrying amount
On December 31, 2018		€	1,862	€	1,771	€	—	€	3,632
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, 2020, our balance sheet did not hold any internally generated assets capitalized as intangible asset.

F-45

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, 2018	€	4,736	€	33,060	€	3,209	€	1,189	€	42,195
Additions		275		4,674		1,039		4,404		10,392
Sales and disposals				(486)		(826)				(1,311)
Reclassifications				753		13		(766)		—
Translation differences				29		16				46
On December 31, 2018		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
Depreciations and impairment
On January 1 , 2018	€	2,342	€	20,495	€	2,407	€	258	€	25,502
Depreciation		344		3,377		236		17		3,974
Sales and disposals				(485)		(826)				(1,310)
Translation differences				16		2				18
On December 31, 2018		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
Carrying amount
On December 31, 2018	€	2,325	€	14,628	€	1,632	€	4,552	€	23,137
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

F-46

RIGHT-OF-USE	Land & building		Installation & machinery		Furniture, fixtures & vehicles		Total
	(Euro, in thousands)
Acquisition value
On December 31, 2018	€	—	€	—	€	—	€	—
Change in accounting policy ( modified retrospective application IFRS 16)		24,056		219		2,130		26,406
Restated balance 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
Depreciations and impairment
On December 31, 2018	€	—	€	—	€	—	€	—
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
Carrying amount
On December 31, 2019	€	22,694	€	212	€	2,440	€	25,345
On December 31, 2020	€	31,027	€	270	€	3,817	€	35,113

	December 31,
Carrying amount		2020		2019		2018
Property, plant and equipment fully owned	€	68,264	€	40,707	€	23,137
Right-of-use		35,113		25,345		—
Total property, plant and equipment	€	103,378	€	66,052	€	23,137

 Due to adoption of IFRS 16 on January 1, 2019 we recognized an opening balance of right-of-use assets of €26.4 million on the balance sheet.

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.

F-47

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,
	2020		2019		2018
	(Euro, in thousands)
Non-current restricted cash	€	1,482	€	1,418	€	1,276
Financial assets held at fair value through profit or loss		8,951		11,275		6,000
Other non-current assets		910		1,399		643
Total other non-current assets	€	11,343	€	14,091	€	7,919

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.

Restricted cash on December 31, 2019 was composed of bank guarantees on real estate lease obligations in Belgium and in the Netherlands for €0.9 million and €0.5 million, respectively. 

Financial assets held at fair value through profit or loss consisted of equity instruments of both listed and non-listed companies.

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 is 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 of the non-listed company has been determined mainly by reference to the initial transaction price (classified as level 3 in the fair value hierarchy).

Fair value changes on financial assets with fair value through profit or loss are recognized 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, 2020, 2019, and 2018.

		December 31,
	2020		2019		2018
	(Euro, in thousands)
Costs at January 1,	€	4,736	€	4,818	€	2,373
Acquisitions of the year		1,994		—		4,736
Disposals of the year		(2,820)		(82)		(2,291)
Costs at December 31,		3,910		4,736		4,818
Fair value adjustment at January 1,		6,539		1,182		(619)
Cancellation of fair value adjustment following disposal		(3,894)		2		598
Fair value adjustment of the year		2,397		5,355		1,203
Fair value adjustment at December 31,		5,042		6,539		1,182
Net book value at  December 31,	€	8,951	€	11,275	€	6,000

F-48

16. Research and Development incentives receivables

The table below illustrates the R&D incentives receivables related captions in the balance sheet on December 31, 2020, 2019, and 2018:

		December 31,
	2020		2019		2018
		(Euro, in thousands)
Non-current R&D incentives receivables	€	111,624	€	93,407	€	73,443
Current R&D incentives receivables		24,104		21,949		11,203
Total R&D incentives receivables	€	135,728	€	115,356	€	84,646

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 on December 31, 2020.

Non-current R&D incentives receivables

	December 31, 2020
	Maturity date
	2022		2023		2024		2025		2026-2030		Total
	(Euro, in thousands)
French non-current R&D incentives receivables - discounted value	€	10,223		11,911		11,722					€	33,856
Belgian non-current R&D incentives receivables - discounted value		6,647		8,429		11,078		13,716		37,898		77,768
Total non-current R&D incentives receivables - discounted value	€	16,870	€	20,340		22,800		13,716		37,898	€	111,624

F-49

17. Trade and other receivables and other current assets

		December 31,
	2020		2019		2018
	(Euro, in thousands)
Non-current trade receivables	€	50,000	€	—	€	—
Trade receivables		134,632		39,603		9,206
Prepayments		219		292		142
Other receivables		13,568		14,114		9,261
Trade and other receivables		148,418		54,009		18,609
Inventories		355		255		276
Accrued income		1,096		4,443		3,863
Deferred charges		10,502		4,439		4,104
Other current assets		11,953		9,138		8,244
Total trade and other receivables & other current assets	€	210,371	€	63,147	€	26,852

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, 2020, we did not have any provision for expected credit losses.

18. Current financial investments

On December 31, 2020, our current financial investments amounted to €3,026.3 million compared to €3,919.2 million at December 31, 2019 and nil at December 31, 2018. On December 31, 2019 these current financial investments included a short-term bond fund and money market funds. On December 31, 2020 these current financial investments included treasury bills (€1,454.4 million) and money market funds (€1,571.9 million). Our portfolio of treasury bills contains only AAA rated paper, issued by Germany and The Netherlands. 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, 2020, our current financial investments included $524.6 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.

We refer to note 32 for more information on these current financial investments.

19. Cash and cash equivalents

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Cash at banks	€	1,239,993	€	907,939	€	358,016
Term deposits		895,194		953,677		733,537
Money market funds		—		—		199,243
Cash and cash equivalents from continuing operations		2,135,187		1,861,616		1,290,796
Cash and cash equivalents included in assets classified as held for sale		7,884		—		—
Total cash and cash equivalents	€	2,143,071	€	1,861,616	€	1,290,796

F-50

Cash and cash equivalents may comprise cash at banks, short term bank deposits and money market funds that are readily convertible to cash and are subject to an insignificant risk of changes in value. Our cash management strategy monitors and optimizes our liquidity position. Our cash management strategy may allow short term deposits with an original maturity exceeding three months while monitoring all liquidity aspects. Cash and cash equivalents comprised €895.2 million of term deposits which all had an original maturity longer than three months. 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, 2020 our cash and cash equivalents included $894.3 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.

20. Share capital

	2020		2019		2018
	(Euro, in thousands)
On January 1	€	287,282	€	236,540	€	233,414
Share capital increase		4,031		55,189		19,090
Costs of capital increase		—		(4,447)		(15,964)
Share capital on December 31,	€	291,312	€	287,282	€	236,540
Aggregate share capital	€	353,819	€	349,789	€	294,600
Costs of capital increase (accumulated)		(62,507)		(62,507)		(58,060)
Share capital on December 31,	€	291,312	€	287,282	€	236,540

Costs of capital increases are netted against the proceeds of capital increases, in accordance with IAS 32—Financial instruments: disclosure and presentation.

F-51

HISTORY OF SHARE CAPITAL

The history of the share capital of Galapagos NV between January 1, 2018 and December 31, 2020 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, 2018						46,256	€	250,187
March 20, 2018				1,613	298
June 20, 2018				556	103
September 17, 2018		16,021			2,961
October 3, 2018				733	135
November 23, 2018				167	31
December 31, 2018						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 18, 2020				467	86
December 4, 2020				384	71
December 31, 2020						65,412	€	353,819

On December 31, 2020, Galapagos NV’s share capital amounted to €353,819 thousand, represented by 65,411,767 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-52

The below table summarizes the capital increases for the years 2018, 2019, and 2020.

(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, 2018		50,936,778	€	233,414	€	993,025	€	1,226,439
March 20, 2018 : exercise of subscription rights		298,184		1,613		2,311		3,924	13.16	83.72
June 20, 2018 : exercise of subscription rights		102,801		556		781		1,337	13.01	85.00
September 17, 2018 : U.S. public offering
ADSs (fully paid)		2,961,373		16,021		280,167		296,188
Underwriter discounts and offering expenses (paid)				(15,964)				(15,964)
Total U.S. public offering		2,961,373		57		280,167		280,224		99.68
October 3, 2018 : exercise of subscription rights		135,485		733		1,281		2,014	14.86	94.32
November 23, 2018 : exercise of subscription rights		30,800		167		215		382	12.40	88.90
On December 31, 2018		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

F-53

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

F-54

Other information

	Ordinary shares		Total
Accounting 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 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 7:87 of the 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, 2020, an amount of €55,264,659.69 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.

21. Deferred tax

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Recognized deferred tax assets and liabilities
Assets	€	4,475	€	4,205	€	2,514
Liabilities	€	—	€	—	€	—
Deferred tax assets unrecognized	€	365,639	€	289,833	€	223,377
Deferred taxes in the consolidated statement of operations	€	(157)	€	1,537	€	(238)
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)		581		1,537		528
Deferred tax expenses relating to temporary differences		(44)		—		—
Deferred tax expenses relating to use or derecognition of previously recognized deferred tax assets		(695)		—		(766)

The total amount of tax attributes and deductible temporary differences at December 31, 2020 amounted to €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, 2020 amounting to €1,229.3 million (2019: €953.3 million; 2018: €688.7 million), and (ii) innovation income deduction, dividend received deduction and investment deduction carried forward at December 31, 2020 amounting to €256.5 million (2019: €225.7 million; 2018: €196.4 million).

The available statutory tax losses carried forward that can be offset against future statutory taxable profits amounted to €478.6 million on December 31, 2020. These statutory tax losses can be compensated with future statutory profits for an indefinite period except for an amount of €2.7 million in the United States and the Netherlands with expiry date between 2026 and 2034. On December 31, 2020, the available tax losses carried forward in Galapagos NV (Belgium) amounted to €416.6 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, 2020, a carried forward tax deduction of €247.2 million (2019: €224.7 million; 2018: €195.4 million) that can also be offset against future statutory taxable results. In addition, Galapagos NV (Belgium) also has available investment deduction carried forward of €1 million (2019 and 2018: €1 million) and a dividend received deduction carried forward of €8.4 million (2019 and 2018: nil) that can be offset against future taxable profits. There is no limit in time for the innovation income deduction, the dividend received deduction and investment deduction carried forward.

F-55

 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 set up as at December 31, 2020, except for four subsidiaries operating on a cost plus basis for which deferred tax assets were recognized for €4.5 million (2019: €4.2 million and 2018: €2.5 million).

22. Lease liabilities

On adoption of IFRS 16 on January 1, 2019, we recognized lease liabilities in relation to leases, which had previously been classified as ‘operating leases’ under IAS 17.

	December 31,						December 31,
	2020		2019		2018		2020		2019		2018
		(Euro, in thousands)						(Euro, in thousands)
		Lease payments						Present value of lease payments
Lease liabilities
Within one year	€	6,772	€	6,189			€	6,401	€	5,826
In the second to fifth years inclusive		20,399		16,320				19,833		15,783
After five years		3,214		3,844				3,201		3,775
	€	30,385	€	26,353	€	-	€	29,436	€	25,384	€	-
Less future finance charges		949		969
Present value of lease liabilities	€	29,436	€	25,384	€	-
Less amount due for settlement within 12 months								6,401		5,826
Amount due for settlement after 12 months							€	23,035	€	19,558	€	-

23. Trade and other liabilities

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Trade and other liabilities	€	171,316	€	142,510	€	68,038
Other non-current liabilities		8,096		6,989		1,578
Accrued charges		1,070		923		890
Total trade and other liabilities	€	180,482	€	150,422	€	70,506

F-56

24. 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		Servier collaboration agreement for osteoarthritis		Deferred income related to contracts in our fee-for-service segment		Other deferred income (grants)
		(Euro, in thousands)
On December 31, 2017	€	219,892	€	213,981	€	—	€	—	€	—	€	5,362	€	248	€	300
Reclassified from equity following adoption of IFRS 15		83,220		43,832						44,749		(5,362)
On Januari 1, 2018		303,112		257,814		—		—		44,749		—		248		300
Upfront received		38,874								38,874
Milestones received		20,965		12,417						8,548
Revenue recognition of upfront		(148,985)		(96,809)						(52,176)
Revenue recognition of milestones		(64,394)		(27,623)						(36,771)
Other movements		229												222		7
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 payments		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

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(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, 2020 and on December 31, 2019 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 significant financing component reflecting the time value of money on the estimated recognition period.

The outstanding deferred income balance on December 31, 2020 included €818.7 million related to the collaboration agreement with Gilead for filgotinib (€604.9 million classified as long term deferred income), and €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 related to deferred grants.

The outstanding deferred income balance on December 31, 2019 included €780.3 million related to the collaboration agreement with Gilead for filgotinib (€594.7 million classified as long term deferred income), €2,220.0 million, including €16.2 million warrant issuance liability related to subsequent warrant B, related to the collaboration agreement with Gilead for the drug discovery platform (€1,991.6 million classified as long term deferred income) and €0.4 million related to our fee-for-service segment. We refer to note 6 for a detail of the allocation of the transaction price received from Gilead. 

25. 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 fee-for-service segment). As net assets associated with our fee-for-service business 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.

The transaction was completed on January 4, 2021 for a total consideration of €37.1 million (including the customary adjustments for cash and working capital). Fidelta will continue performing drug discovery services for us for the next five years for which we have purchase commitments for an aggregate amount of €27.0 million.

Held for sale assets are stated at their carrying amount, which is lower than the fair value less costs to sell.

As we expect to continue to purchase services from Fidelta d.o.o. after the closing of the transaction, we eliminated the intragroup revenue and cost in discontinued operations.

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(i)                                Financial performance

	Year ended December 31,
	2020		2019			2018
		(Euro, in thousands, except share and per share data)
Revenues	€	16,140	€	10,084	€	10,170
Other income				8		9
Total revenues and other income		16,140		10,092		10,179
Research and development expenses		(7,685)		(7,229)		(6,653)
General and administrative expenses		(2,000)		(1,319)		(1,253)
Total operating expenses		(9,685)		(8,548)		(7,906)
Operating income		6,455		1,544		2,273
Other financial income		179		93		71
Other financial expenses		(176)		(102)		(135)
Income before tax		6,458		1,535		2,209
Income taxes		(893)		(379)		773
Net income	€	5,565	€	1,156	€	2,981
Basic income per share from discontinued operations	€	0.09	€	0.02	€	0.06
Diluted income per share from discontinued operations	€	0.08	€	0.02	€	0.06
Weighted average number of shares (in thousands of shares)		65,075		57,614		52,113
Weighted average number of shares - Diluted (in thousands of shares)		67,572		60,112		53,922

(ii)                              Assets and liabilities

The following assets and liabilities were classified as held for sale in relation to the discontinued operations:

	2020
		(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 assets		863
Total assets classified as held for sale		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		3,649
Current lease liabilities		727
Income tax payable		356
Liabilities associated with assets classified as held for sale		8,917
Net assets	€	14,488

F-59

(iii)                            Cash flow

		2020	2019			2018
		(Euro, in thousands)
Net cash flows generated in operating activities	€	7,173	€	2,911	€	3,335
Net cash flows used in investing activities		(2,284)		(1,350)		(799)
Net cash flows used in financing activities		(664)		(709)		—
Net cash flow from discontinued operations	€	4,225	€	852	€	2,536

26. Operating Cash Flow

The following table details the adjustments related to the operating cash flow: 

	2020		2019		2018
	(Euro, in thousands)
Adjustment for non-cash transactions
Depreciation and amortization	€	18,682	€	12,448	€	5,081
Impairment loss						1,083
Share-based compensation expenses		79,959		38,297		26,757
Decrease (-)/increase in retirement benefit obligations and provisions		(260)		(156)		99
Unrealized exchange losses/gains (-) and non-cash other financial result		105,055		11,169		(10,063)
Discounting effect of deferred income		16,278		6,900
Fair value re-measurement of share subscription agreement and warrants		(3,034)		181,644
Net change in (fair) value of current financial investments		15,900		3,081
Fair value adjustment financial assets held at fair value through profit or loss		(2,396)		(5,355)		(1,203)
Other non-cash expenses		539
Total adjustment for non-cash transactions	€	230,723	€	248,027	€	21,753
Adjustment for items to disclose separately under operating cash flow
Interest expense	€	9,424	€	1,302	€	780
Interest income		(7,476)		(9,247)		(5,219)
Tax expense		2,119		214		50
Total adjustment for items to disclose separately under operating cash flow	€	4,067	€	(7,731)	€	(4,389)
Adjustment for items to disclose under investing and financing cash flows
Gain (-)/loss on sale of fixed assets	€	82	€	(2)	€	(668)
Interest income on current financial investments		(2,554)		(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	€	( 2,472 )	€	(5,061)	€	(668)
Change in working capital other than deferred income
Increase (-)/decrease in inventories	€	(100)	€	20	€	3
Increase in receivables		(177,155)		(67,263)		(76)
Increase in liabilities		31,163		79,940		19,996
Total change in working capital other than deferred income	€	(146,092)	€	12,698	€	19,922

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27. Off-balance sheet arrangements

CONTRACTUAL OBLIGATIONS AND COMMITMENTS

We entered into lease agreements for offices, laboratories and cars. As a consequence of the adoption of IFRS 16 Leases, on January 1, 2019, lease obligations in the scope of the new standard are presented as lease liabilities in the statements of financial position and no longer disclosed separately as off-balance sheet commitments. We refer to note 22 for a breakdown of our lease liabilities.

On December 31, 2020, 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	€	347,873	€	271,922		€	73,009	€	2,870	€	72

On December 31, 2019, 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	€	251,670	€	175,006		€	70,675	€	5,989	€	—

On December 31, 2019 we were committed to two leases which have not yet started. The total future cash outflows for leases that had not yet commenced were as follows:

	Total		Less than 1 year			1 - 3 years		3 - 5 years		More than 5 years
					(Euro, in thousands)
Lease commitments not yet commenced	€	8,986	€	5,793		€	1,502	€	1,502	€	188

On December 31, 2018, we had outstanding obligations for future minimum rent payments and 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)
Operating lease obligations	€	27,704	€	4,722		€	10,024	€	6,234	€	6,724
Purchase commitments (*)		222,033		121,139			81,879		19,014		—
Total  contractual obligations & commitments	€	249,737	€	125,862		€	91,903	€	25,248	€	6,724

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 €614.1 million at December 31, 2019, (€74.0 million at December 31, 2018).

On December 31, 2020, after the recent renegotiation of the filgotinib collaboration, our estimate of this cost sharing commitment amounts to €493.4 million, for which we have direct purchase commitments of €18.1 million at December 31, 2020 (€27.5 million at December 31, 2019, €20.3 million at December 31, 2018) reflected in the tables above.

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28. 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 including customary adjustments for net cash and working capital. 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 will assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. Beginning on January 1, 2021, we will 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 and commercialization responsibilities for 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 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 €35 million in January 2021 and will pay an additional €75 million in 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. We achieved two milestones under the first revised agreement in September 2020 totaling $105 million.

As a result of the Option, License and Collaboration agreement signed with Gilead in July 2019, we share further development costs for GLPG1690 equally with Gilead. We were also entitled to an additional milestone for GLPG1690 upon approval in the United States and we were eligible to receive tiered royalties ranging from 20-24% on net sales of GLPG1690 by Gilead in all countries outside Europe. In February 2021, we and Gilead announced our decision to discontinue all ongoing development activities with GLPG1690.

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, potential future development and sales based milestones and royalties.

29. 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 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.

The subscription rights offered to members of the supervisory board vest over a period of 36 months at a rate of 1/36th per month. As of 2020, we no longer grant subscription rights to supervisory board members.

Subscription rights 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. 

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The table below sets forth a summary of subscription rights outstanding and exercisable on December 31, 2020, per subscription right plan:

				Outstanding					Outstanding	Exercisable
				per	Granted	Exercised	Forfeited	Expired	per	per
Subscription	Allocation	Expiry	Exercise	January 1,	during	during	during	during	December 31,	December 31,
right plan	date	date	price (€)	2020	year	year	year	year	2020	2020
2006 BNL	12/21/2007	12/20/2020	7.12	1,050		(1,050)			—	—
2007 RMV	10/25/2007	10/24/2020	8.65	14,980		(14,980)			—	—
2008	06/26/2008	06/25/2021	5.6	1,365					1,365	1,365
2012	09/03/2012	09/02/2020	14.19	80,040		(80,040)			—	—
2013	05/16/2013	05/15/2021	19.38	120,434		(64,770)			55,664	55,664
2014	07/25/2014	07/24/2022	14.54	252,340		(83,000)			169,340	169,340
2015	04/30/2015	04/29/2023	28.75	282,473		(63,000)			219,473	219,473
2015 (B)	12/22/2015	12/21/2023	49.00	329,500		(68,000)			261,500	261,500
2015 RMV	12/22/2015	12/21/2023	49.00	57,500		(17,500)			40,000	40,000
2016	06/01/2016	05/31/2024	46.10	504,250		(161,625)			342,625	342,625
2016 RMV	06/01/2016	05/31/2024	46.10	120,000		(51,000)			69,000	69,000
2016 (B)	01/20/2017	01/19/2025	62.50	150,000		(140,000)			10,000	10,000
2017	05/17/2017	05/16/2025	80.57	595,500					595,500
2017 RMV	05/17/2017	05/16/2025	80.57	127,500					127,500
2018	04/19/2018	04/18/2026	79.88	1,085,245			(2,000)		1,083,245
2018 RMV	04/19/2018	04/18/2026	79.88	137,500					137,500
2019	04/10/2019	04/09/2027	95.11	1,486,690			(8,850)		1,477,840
2019 RMV	04/10/2019	04/09/2027	95.11	194,750			(1,750)		193,000
2020	04/17/2020	04/16/2028	168.42	—	1,925,185		(19,151)		1,906,034
2020RMV	04/17/2020	04/16/2028	168.42	—	248,150		(8,625)		239,525
Total				5,541,117	2,173,335	(744,965)	(40,376)	—	6,929,111	1,168,967

		Weighted
		average
	Subscription rights	exercise
		price (Euro)
Outstanding on January 1, 2018	3,970,807	€	39.3
Exercisable on December 31, 2017	763,344		13.7
Granted during the period	1,235,245		79.9
Forfeited during the year	(12,000)		43.2
Exercised during the period	(567,270)		13.5
Expired during the year	—		—
Outstanding on December 31, 2018	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

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The table below sets forth the inputs into the valuation of the subscription rights.

	2020		2020 RMV		2019		2019 RMV		2018		2018 RMV
	April 17		April 17		April 19		April 19		April 18		April 18
Exercise Price (€)	€	168.42	€	168.42	€	95.11	€	95.11	€	79.88	€	79.88
Weighted average share price at acceptance date (€)	€	178.95	€	178.95	€	107.05	€	107.45	€	84.88	€	84.88
Weighted average fair value on the acceptance date (€)	€	86.45	€	85.79	€	40.04	€	40.05	€	38.39	€	38.39
Weighted average estimated volatility (%)		51.30		51.32		35.86		35.63		39.44		39.44
Weighted average expected life of the subscription rights (years)		6.00		6.00		6.02		6.00		8.00		8.00
Weighted average risk free rate (%)		(0.44)		(0.44)		(0.27)		(0.28)		0.51		0.51
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 26 March 1999.

The weighted average estimated volatility is calculated on the basis of the implied volatility of the share price over the 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 2020 amounted to €79,959 thousand (2019: €38,297 thousand; 2018: €26,757 thousand).

The following table provides an overview of the outstanding subscription rights per category of subscription right holders on December 31, 2020, 2019 and 2018.

Category

	December 31,
	2020		2019		2018
	(in number of subscription rights)
Supervisory board members		157,560		222,600		216,780
Management board members		2,101,874		2,171,874		2,139,374
Other		4,669,677		3,146,643		2,270,628
Total subscription rights outstanding		6,929,111		5,541,117		4,626,782

The outstanding subscription rights at the end of the accounting period have a weighted average exercise price of €103.95 (2019: €70.09; 2018: €53.30) and a weighted average remaining life of 2,050 days (2019: 2,023 days; 2018: 1,975 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 types of restricted stock unit (RSU) programs:

• Plan 2020.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 and Plan 2020.II 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;

F-64

• Plan 2019.I This plan was granted at the discretion of the supervisory board, as announced in our remuneration policy included in the annual report relating to financial year 2018 under the header "Information on the remuneration policy for the next two years."

• 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. 

The main characteristics of all these plans are as follows:

• the RSUs are offered for no consideration

• four-year vesting period, with 25% vesting each year, except for the RSUs granted under the Plan 2019.I and, solely for beneficiaries who are management board members, the Plan 2020.I, that will all vest at the same time three years after the offer date and the RSUs granted under Plan 2019.III, of which 50% vests after two years and 50% vests after three 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;

• in case of termination of service before the vesting date, forfeiture rules apply.

The table below sets forth a summary of RSUs outstanding at December 31, 2020, per RSU plan: 

		Outstanding				Outstanding
		per	Granted	Forfeited	Paid in cash	per
	Offer	January 1,	during	during	during	December 31,
RSU plan	date	2020	year	year	year	2020
Plan 2019.I	10/16/2019	33,000				33,000
Plan 2019.II	10/16/2019	109,075			(27,268)	81,807
Plan 2019.III	10/16/2019	71,072				71,072
Plan 2020.I	6/5/2020		55,928	(1,052)		54,876
Plan 2020.II	7/5/2020		72,841			72,841
Total		213,147	128,769	(1,052)	(27,268)	313,596

	2020	2019
	(in number of RSUs)
Outstanding on January 1,	213,147	—
Granted during the period	128,769	213,147
Forfeited during the year	(1,052)
Paid in cash during the period	(27,268)
Outstanding on December 31,	313,596	213,147

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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, 2020 and December 31, 2019.  

	December 31,
Category	2020	2019
	(in number of RSUs)
Management board members	229,276	188,571
Other	84,320	24,576
Total outstanding RSUs	313,596	213,147

30. Related parties

Relationship and transactions with entities with (joint) 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 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.

Furthermore, the extraordinary general meeting of shareholders of October 22, 2019 approved the issuance of warrant A and initial warrant B to Gilead allowing them to further increase its ownership of Galapagos to up to 29.9% of the company’s issued and outstanding shares. 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 of the closing of the subscription agreement and this warrant will have substantially similar terms, including as to exercise price, to the initial warrant B. On November 6, 2019 Gilead exercised warrant A, which resulted in an additional equity investment of €368.0 million. By exercising warrant A 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, due to four capital increases resulting from the exercise of subscription rights under employee subscription right plans in the course of 2020. On January 6, 2021 we received a transparency notification from Gilead notifying a change in the chain of intermediary companies through which Gilead holds its shares in Galapagos and confirming they held 25.54% of the then issued and outstanding shares of Galapagos.

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.

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The following balances are outstanding at the end of the reporting period in relation to Gilead:

	December 31,
	2020		2019
	(Euro, in thousands)
Non-current trade receivables	€	50,000	€	—
Trade and other receivables	€	132,825	€	31,645
Trade and other payables	€	27,074	€	39,100

The non-current trade receivables and trade and other receivables balances mainly relate to a total of €160.0 million to receive in relation to the recently modified collaboration for filgotinib of which €110.0 million will be received in 2021 and €50.0 million in 2022. Additionally, the trade and other receivables contain €22.8 million of receivables relating to our collaborations for GLPG1690 and filgotinib. The outstanding liabilities mainly relate to the cross charges from Gilead for the development cost sharing of filgotinib in the fourth quarter of 2020 (€24.8 million).

Due to the approval of Jyseleca, by both the Japanese and European authorities in September 2020, we received milestone payments of respectively $30.0 million (€25.8 million) and $75.0 million (€64.4 million) from Gilead that are recognized in revenue over time until the end of the development period.

During 2020 we recognized in revenue €229.6 million (€80.9 million for the year ended December 31, 2019) relating to the performance obligation for the drug discovery platform and a total of €228.1 million (€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 royalty income for an amount of €16.2 million in relation to the commercialization of Jyseleca.

Furthermore, we recognized €34.1 million (€17.7 million for the year ended December 31, 2019) of cost reimbursements from Gilead related to the development of GLPG1690 as a decrease of the related expenses (on the line research and development expenditure). An amount of €101.0 million (€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 €4.7 million as a deduction of sales & marketing expenses and €3.1 million as a deduction of research and development expenditure (compared to €8.2 million additional sales & marketing expenses for the year ended December 31, 2019) mainly relating to our 50/50 profit/(cost) share mechanism with Gilead for direct sales of Jyseleca (filgotinib) in the shared territory and expenses incurred for the co-promotion activities for Jyseleca (filgotinib).

As at December 31, 2020, 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 €2.0 billion for the drug discovery platform (including the warrant issuance liability relating to subsequent warrant B) and €819 million for the performance obligation relating to filgotinib.

A detailed explanation of our transactions with Gilead in 2019 and 2020 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-67

Relationship and transactions with subsidiaries

Please see Note 31 for an overview of the consolidated companies of the group, which are all wholly-owned subsidiaries of Galapagos NV.

Intercompany transactions between Galapagos NV and its subsidiaries, and amongst the subsidiaries, have been eliminated in the consolidation and are not disclosed in this note.

Relationship and transactions with key management personnel

Our key management personnel consists of the members of our management board and the members of our 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, 2019, our management board had six members: Mr. Onno van de Stolpe, Mr. Bart Filius, Dr. Piet Wigerinck, 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, 2020, 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. Dr Elisabeth Svanberg was appointed as supervisory board member on our annual shareholders’ meeting of April 28, 2020.

Only the CEO was, prior to the implementation of the two-tier governance structure, a member of both the executive committee and the board of directors. Our CEO did not receive any special remuneration for his board membership, as this was part of his total remuneration package in his capacity as management board member.

F-68

The remuneration package of the members of key management personnel comprises:

	Year ended December 31,
	2020		2019		2018
Remuneration of key management personnel:
Euro, in thousands (except for the number of subscription rights and RSUs)
Short-term benefits	€	3,102	€	14,129	€	2,909
Management board members as a group (1)
Gross salary		2,531		2,121		1,920
Employer social security on gross salary		—		61		125
Cash bonus		433		1,230		757
Exceptional bonus		—		10,500		—
Employer social security on exceptional bonus		—		108		—
Other short-term benefits		138		109		107
Long-term benefits for management board members as a group  (2)		—		1,874		1,812
Board fees and other short-term benefits for supervisory board members
Raj Parekh		220		90		92
Harrold van Barlingen (3)		—		—		15
Howard Rowe		125		55		53
Werner Cautreels (4)		—		15		48
Katrine Bosley		115		45		45
Christine Mummery (4)		—		13		40
Mary Kerr		115		45		46
Peter Guenter (5)		115		30		—
Daniel O'Day (6)		—		—		—
Linda Higgins (6)		—		—		—
Elisabeth Svanberg (7)		78		—		—
Post-employment benefits (8)		392		323		305
Total benefits excluding subscription rights and  RSUs (9)	€	4,262	€	16,618	€	5,346
Number of subscription rights granted in the year
Management board members as a group		275,000		315,000		350,000
Onno van de Stolpe		85,000		100,000
Bart Filius		50,000		65,000
Andre Hoekema		30,000		50,000
Piet Wigerinck		40,000		50,000
Walid Abi-Saab		40,000		50,000
Michele Manto		30,000		40,000
Supervisory board members as a group		—		45,000		52,500
Raj Parekh				15,000		15,000
Harrold van Barlingen (3)				—		—
Howard Rowe				7,500		7,500
Werner Cautreels (4)						7,500
Katrine Bosley				7,500		7,500
Christine Mummery (4)						7,500
Mary Kerr				7,500		7,500
Peter Guenter (5)				7,500
Daniel O'Day (6)
Linda Higgins (6)
Elisabeth Svanberg (7)
Total number of subscription rights granted in the year		275,000		360,000		402,500
Total cost of subscription rights granted in the year under IFRS 2	€	22,921	€	14,236	€	15,507
Number of RSUs granted in the year (10)
Onno van de Stolpe		18,317		57,528		0
Bart Filius		12,600		39,846		0
Andre Hoekema		832		19,922		0
Piet Wigerinck		12,080		33,077		0
Walid Abi-Saab		12,080		33,077		0
Michele Manto		5,920		5,121		0
Total number of RSUs granted in the year		61,829		188,571		-

F-69

(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.

(2) 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 financial year 2020 the deferred part of the bonus was not paid out.

^{(3) Dr. Van Barlingen's director's mandate expired on April 24, 2018}

(4) Director's mandate expired on April 30, 2019 

(5) Mr. Guenter's supervisory board member's mandate began on April 30, 2019

(6) Supervisory board member's mandate began on October 22, 2019

^{(7) Supervisory board member's mandate began on April 28, 2020}

(8) Only management board members are granted post-employment benefits

(9) For 2018, this amount excludes an amount of €20.1 thousand tax advisory services that is included in the amount of €107 thousand other short-term benefits

(10) 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 and for 2020 in financial year 2020 (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 of their mandates as members of the management board or supervisory board.

31. Consolidated companies as of December 31, 2020

		Year ended December 31,
		2020		2019	2018
Name of the subsidiary	Country	% voting right Galapagos NV (directly or indirectly through subsidiaries)	Change in % voting right previous period (2020 vs 2019)	% voting right Galapagos NV (directly or indirectly through subsidiaries)	% voting right Galapagos NV (directly or indirectly through subsidiaries)
BioFocus DPI AG (liquidated)	Switzerland	0%	(100%)	100%	100%
Galapagos Biopharma Belgium BV	Belgium	100%		100%
Galapagos Biopharma Netherlands B.V.	The Netherlands	100%		100%
Galapagos Biopharma Spain S.L.U	Spain	100%		100%
Galapagos Biopharma Italy S.r.l.	Italy	100%		100%
Galapagos Biopharma Germany GmbH	Germany	100%		100%
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%	(100%)	100%	100%
Galapagos Real Estate Netherlands B.V.	The Netherlands	100%		100%
Galapagos SASU	France	100%		100%	100%
Fidelta d.o.o.	Croatia	100%		100%	100%
Xenometrix, Inc. in liquidation	United States	100%		100%	100%

F-70

In 2019 we incorporated the following legal entities: Galapagos Biopharma Belgium BV, Galapagos Biopharma Netherlands B.V., Galapagos Biopharma Spain S.L.U., Galapagos Biopharma Italy S.r.l., Galapagos Biopharma Germany GmbH and Galapagos Real Estate Netherlands B.V.. During 2020 we merged Galapagos Real Estate 2 BV with Galapagos Real Estate 1 BV, with the latter being the surviving entity whose company name changed into Galapagos Real Estate Belgium BV.  In 2020, we also completed the liquidation of our Swiss subsidiary Biofocus DPI AG. In 2021, it still needs to be deregistered from the Swiss commercial register.

On November 23, 2020 we signed a share purchase agreement for the sale of our subsidiary Fidelta d.o.o. (Zagreb, Croatia). As we expect that the net assets associated with Fidelta d.o.o. 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. On January 4, 2021, we closed the sale of our fee-for-service business Fidelta to Selvita S.A. Selvita acquired 100% of the outstanding shares in Fidelta.

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.

32. 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 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,
	2020		2019(*)		2018(*)
	(Euro, in thousands)
Financial assets held at fair value through profit or loss
Equity instruments	€	8,951	€	11,275	€	6,000
Current financial investments		1,571,858		3,919,216		—
Financial assets at amortised cost
Current financial investments		1,454,420		—		—
Cash and cash equivalents		2,135,187		1,861,616		1,290,796
Restricted cash (current and non-current)		1,482		1,418		1,276
Other non-current assets		907		1,399		644
Trade receivables		184,632		39,603		9,206
Total financial assets	€	5,357,438	€	5,834,526	€	1,307,922
Financial liabilities held at fair value through profit or loss
Current financial instruments	€	3,164	€	6,198	€	—
Financial liabilities at amortised cost
Trade liabilities		134,905		116,749		52,466
Lease liabilities		29,436		25,384		—
Total financial liabilities	€	167,505	€	148,331	€	52,466

(*) The historical consolidated financial information for 2019 and 2018 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 payables and trade receivables are considered to be the same as their fair values, due to their short-term nature.

F-71

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 ualify for level 1 fair value measurement based upon the closing price of the 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

Our current financial investments and cash and cash equivalents amounted to €5,169.3 million on December 31, 2020. Management forecasts our liquidity requirements to ensure that there is sufficient cash to meet operational needs. We have no credit lines. Such forecasting is based on realistic assumptions with regard 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 current financial investments 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.

The trade receivables consist of a limited amount of creditworthy customers, many of which are large pharmaceutical companies, spread over different geographical areas. 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 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-72

Aging balance of receivables that are due, but that are still considered collectable: 

	December 31,
	2020		2019		2018
	(Euro, in thousands)
60 - 90 days	€	—	€	87	€	236
90 - 120 days		—		—		12
more than 120 days	€	—	€	—	€	—

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 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 €51.7 million (2019: €57.8 million; 2018: €12.9 million); a 100 basis point decrease in interest rates would have decreased profit or loss, and equity, by approximately €51.7 million (2019: €57.8 million; 2018: €12.9 million). These scenarios assume our entire cash portfolio would immediately reprice at the new interest rates.

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 collaboration partner Gilead in U.S. dollars and acquire some consumables and materials in U.S. dollars, Swiss Francs, GB Pounds and Croatian Kuna.

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 collaboration agreement signed with Gilead for which payments are denominated in U.S. dollars.

F-73

The exchange rate risk in case of a 10% change in the exchange rate amounts to: 

	December 31,
	2020		2019		2018
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(116,690)	€	(133,373)	€	(27,200)
Increase in Euros - GB Pounds		303		113		100
Increase in Euros - CH Francs		2,013		538		208
Increase in Euros - HR Kunas		—		650		611
Increase in U.S. Dollars - GB Pounds	€	—	€	(894)	€	(923)

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, 2020), 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, 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.

33. Auditor’s remuneration

The statutory auditor’s fees for carrying out his mandate at group level amounted to €1,202.8 thousand in 2020 (2019: €1,406.8 thousand). The fees for audit-related services executed by the statutory auditor, related to the performance of the audit or review of the company’s affiliates financial statements, amounted to €23.9 thousand (2019: €29.2 thousand). Audit-related services executed by persons related to the statutory auditor for carrying out an auditor’s mandate at the level of the Company’s affiliates amounted to €29.2 thousand in 2020 (2019: €29.2 thousand). Other fees related to audit-related fees, which generally the auditor provides, amounted to €161.3 thousand in 2020 (2019: €43.0 thousand). Other fees related to non-audit services executed by the statutory auditor amounted to €47.7 thousand in 2020 (2019: €148.2 thousand). Other fees related to non-audit services executed by persons related to the statutory auditor amounted to €890.7 thousand in 2020 and related to IT services and CSV services (2019: €46.6 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.

F-74

34. Events after balance sheet date

On March 19, 2021, 99,814 subscription rights were exercised (with an average exercise price of €22.62 per subscription right), of which 41,874 subscription rights were exercised by our CEO, 10,000 subscription rights by other members of our management board, and 5,040 subscription rights by former members of our supervisory board. This resulted in a share capital increase (including issuance premium) of €2,258,042.82 and the issuance of 99,814 new ordinary shares. The closing price of our share on March 19, 2021, was €68.48.

On February 10, 2021, we announced the discontinuation of all development with ziritaxestat due to an insufficient risk-benefit profile observed in the ISABELA Phase 3 program.  

On January 4, 2021, we completed the sale of Fidelta to Selvita S.A. for a total consideration of €37.1 million (including the customary adjustments for cash and working capital). Fidelta will continue performing drug discovery services for us for the next five years for which we have purchase commitments for an aggregate amount of €27.0 million.

F-75

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 20-F	001-37384	4.23	03/27/2020
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

206

		Incorporated by Reference
		Schedule/			File Date
Exhibit	Description	Form	File Number	Exhibit	(mm/dd/yyyy)
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†	Plan 2019.I - RSU Discretionary Plan 2019	Form 20-F	001-37384	4.27	03/27/2020
4.28†	Plan 2019.II - RSU Retention Plan	Form 20-F	001-37384	4.28	03/27/2020
4.29†	Plan 2019.III - 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)
4.35#†	Plan 2020.I - RSU Long-Term Incentive Plan 2020
4.36#†	Plan 2020.II - RSU Retention Plan 2020
4.37#	Lease Addendum dated March 9, 2020 between the registrant and Intervest Offices & Warehouses NV (English translation)
4.38#	Lease Addendum dated July 28, 2020 between the registrant and Intervest Offices & Warehouses NV (English translation)
4.39#	Lease Addendum dated December 18, 2019 between the registrant and Intervest Offices & Warehouses NV (English translation)
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 CVBA
101.INS#	XBRL Instance Document
101.SCH#	XBRL Taxonomy Extension Schema Document
101. CAL#	XBRL Taxonomy Extension Calculation Linkbase Document

207

		Incorporated by Reference
		Schedule/			File Date
Exhibit	Description	Form	File Number	Exhibit	(mm/dd/yyyy)
101. DEF#	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB#	XBRL Taxonomy Extension Label Linkbase Document
101.PRE#	XBRL Taxonomy Extension Presentation Linkbase Document

#     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.  

208

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 25, 2021

209

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 19, 2021. 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 C T 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, 2019, 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, 2020, we had nine 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, 2020, neither we nor any of our subsidiaries held any of our own shares.

As of March 15, 2021, we estimated that approximately 63% of our outstanding ordinary shares and ADS were held in the United States by an estimated 291 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 6,929,111 subscription rights (where each subscription right entitles the holder to subscribe for one new ordinary share) were outstanding and granted as of December 31, 2020, which represent approximately 10.6% of the total number of all our issued and outstanding voting financial instruments and subscription rights as of December 31, 2020.

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 board of directors

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 New 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.

As of the date of this annual report, our supervisory board may decide to issue up to 10,215,279 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 supervisoryboard 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. 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, 2020, 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, 2020.

The section titled “Item 6.B.—Compensation—RSU Plans” in our Annual Report on Form 20-F for the year ended December 31, 2020, 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, 2020.

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 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 directors 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 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 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-4.34

Exhibit 4.34

Subscription Right Plan 2020 RMV

GALAPAGOS NV

General Rules

1

Table of Contents

1Basis and Purpose	3
2Definitions	3
3Subscription Rights	4
3.1General	4
3.2Number per Beneficiary	4
3.3Transfer restrictions	5
3.4Exercise Price	5
3.5Administration of the Subscription Right Plan	5
4Beneficiaries of the Plan	5
5Acceptance or Refusal of the Offer	5
6Exercise and Payment Conditions	6
6.1Exercise Term	6
6.2Vesting of Subscription Rights	6
6.3Exercise Period	6
6.4Conditions of Exercise	6
6.5Exercise of the Subscription Rights in accordance with the Belgian Code of Companies and Associations	6
6.6Change in Control of the Company	7
7Issuance of New Shares	7
8Cessation of the Relationship	7
8.1Cessation before the date of the Deed of Issuance	7
8.2Good Leaver Situations	8
8.3Bad Leaver Situation	8
8.3.1After the end of the third calendar year	8
8.3.2Before the end of the third calendar year	8
8.4Change of employment	8
8.5Deviations	8
9Amendments and Modifications	9
10Dispute Resolution	9
11Final Provisions	9
11.1Additional Information	9
11.2Taxes and Social Security Treatment	9
11.3Costs	10
11.4Relation to employment agreement	10
11.5Shareholders' Meetings	10
11.6Communication with Subscription Right Holders	10
11.7Address Change	10
11.8Language	10

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1Basis and Purpose

The Board of Directors of Galapagos NV (hereinafter referred to as the “Company”) has approved the present Subscription Right Plan 2020 RMV by notarial deed of 17 April 2020.

With the Plan set forth hereafter the Company wants to inform all Beneficiaries (see infra sub 2 (“Definitions: Beneficiary”) and sub 4 (“Beneficiaries of the Plan”)) of the conditions under which the Company is willing to offer Subscription Rights. The Company thus wants to acknowledge the efforts made by the Beneficiaries to help to develop the Company to a successful enterprise.

2Definitions

In this Plan the words and terms mentioned hereunder have the meanings given below:

Bad Leaver Situation: the effective date on which one of the following situations occurs:

(i)the termination at the request of the Subscription Right Holder of his/her employment agreement with the Company or a Subsidiary for any other reason than the effective liquidation of a state pension, irrespective of the fact that such termination is established in a document signed by both the employer and Employee (notably in case of acknowledgement of the rupture of the employment contract, resignation and request of judicial termination), or

(ii)the termination by the relevant Company or Subsidiary of the employment agreement of a Subscription Right Holder based on any grounds for dismissal attributable to the Subscription Right Holder, and/or any breach or insufficiency by the Subscription Right Holder in the performance of the relevant agreement;

Beneficiary: the Employees of the Company and its Subsidiaries whose name is mentioned in Annex A to this Subscription Right Plan 2020 RMV;

Board of Directors: the board of directors of the Company;

Company: the limited liability company Galapagos, having its registered office at Generaal De Wittelaan L11 A3, 2800 Mechelen, Belgium;

Manager: a natural person who provides services to the Company or a Subsidiary on a contractual basis other than pursuant to an employment agreement (irrespective of whether the contract was entered into directly with the relevant natural person or with a legal entity who has entrusted the performance of the services to such natural person);

Control: the power, de jure or de facto, to have a decisive influence on the appointment of the majority of the directors or on the orientation of the management, as set forth in article 1:14 et seq. of the Belgian Code of Companies and Associations. The terms “to Control” and “Controlled by” shall be construed accordingly;

Deed of Issuance: the notarial deed enacting (i) the acceptance or refusal of the Subscription Rights and (ii) the unconditional issuance of the Subscription Rights;

Employee: each employee of the Company or a Subsidiary with an employment contract;

Exercise Period: a period of two weeks within the Exercise Term, to be determined by the Board of Directors, during which Subscription Rights can be Exercised;

Exercise Price: the pre-determined price at which a New Share can be acquired when Exercising a Subscription Right, during one of the Exercise Periods within the Exercise Term;

Exercise Term: the term during which the Subscription Right Holder can exercise his Subscription Rights to acquire Shares of the Company, taking into account the specific Exercise Periods and the specific exercise conditions as set forth in chapter 6 of this Plan;

Exercise: to make use of the right attached to the Subscription Rights that were acquired by accepting the Offer, to acquire New Shares at the Exercise Price;

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Good Leaver Situation: the effective date of the cessation, in other circumstances than those listed in the definition of Bad Leaver Situation, of the employment agreement of the relevant Subscription Right Holder with either the Company or a Subsidiary (including the relevant employing entity ceasing to be a Subsidiary of the Company), with the exception of a cessation accompanied by a simultaneous (other) employment or appointment of the relevant Subscription Right Holder (or a company Controlled by the Subscription Right Holder) as a Manager, Employee or director of the Company or a Subsidiary. For clarity, the termination at the request of the Subscription Right Holder of his/her employment agreement because of the effective liquidation of a state pension by such Subscription Right Holder shall be considered as a Good Leaver Situation;

Grant: the moment on which the Beneficiary accepts the Subscription Rights offered. For the purposes of this Plan (including for Belgian fiscal reasons), the Grant shall be deemed to take place on the sixtieth day following the date of the Offer if the Offer is accepted within sixty days after the date of the Offer;

New Shares: the Shares to be issued pursuant to the exercise of the Subscription Rights under this Plan;

Notice of Acceptance: the form that the Beneficiary receives at the moment of the Offer and that the Beneficiary needs to return, duly executed, to the Company for the acceptance of the Offer;

Offer: the written and dated notification to the Beneficiaries of the Plan as to the opportunity for them to acquire Subscription Rights in accordance with the provisions of this Plan;

Personal Representative(s): the heir(s) of a Subscription Right Holder upon the latter’s decease;

Plan: the present Subscription Right Plan 2020 RMV approved by the Board of Directors, as amended from time to time by the Board of Directors in accordance with the provisions of this Plan;

Shares: the shares of the Company;

Subscription Right: the right to subscribe, within the framework of this Plan, to one New Share within the Exercise Term and the Exercise Period and at the Exercise Price;

Subscription Right Agreement: the agreement that may be entered into between the Subscription Right Holder and the Company;

Subscription Right Holder: each Beneficiary who has accepted the Offer and who owns one or more Subscription Rights in accordance with this Plan.

Subsidiary: a company under the Control of the Company, as further set forth in article 1:15 of the Belgian Code of Companies and Associations and (in any case) in which the Company holds (directly or indirectly) at least 10% of the share capital and voting rights;

Words and terms denoting the plural shall include the singular and vice versa.

3Subscription Rights

3.1General

The number of Subscription Rights issued in the framework of this Plan is maximum 253,000. These Subscription Rights will be designated as “Subscription Rights 2020 RMV”. The detail of the number of Subscription Rights per Beneficiary, offered under this Plan, is set forth in Annex A to this Plan.

The Subscription Rights are granted by the Company to the Beneficiaries for free.

Each Subscription Right entitles the Beneficiary to subscribe to one New Share in accordance with the terms and conditions of the Plan.

Offers under this Plan do not need to be the same for every Beneficiary.

3.2Number per Beneficiary

The number of Subscription Rights to be offered to the Beneficiaries is determined by the Board of Directors. This number is set forth in Annex A.

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3.3Transfer restrictions

The Subscription Rights received are registered in the name of the Subscription Right Holder and cannot be transferred inter vivos once granted to a Beneficiary.

The Subscription Right cannot be encumbered by any pledge or in any other manner.

Subscription Rights that, in contravention with the foregoing, are transferred or encumbered shall automatically become null and void.

3.4Exercise Price

The Exercise Price per Subscription Right will be determined by or on behalf of the Board of Directors on the day when the Offer of Subscription Rights to the Beneficiaries is made.

As the Shares of the Company are listed or traded on a regulated market at the date of the Offer, the Exercise Price of the Subscription Rights shall be determined by the Board of Directors, and shall be at least equal to (a) the closing price of the Share of the Company on Euronext Amsterdam and Brussels on the last trading day preceding the date of the Offer, or (b)  the average of the closing price of the Share of the Company on Euronext Amsterdam and Brussels during the last thirty (30) days preceding the date of the Offer, it being understood that in both cases, the exercise price shall not be less than 80% of the average of the closing price of the Share of the Company on Euronext Amsterdam and Brussels during the last twenty (20) trading days preceding the Board of Director's decision.

Upon Exercise and subsequent capital increase the Exercise Price must be booked as capital for an amount equal to the accounting par value of the Shares at the moment of the establishment of the capital increase resulting from the Exercise. The part of the Exercise Price that exceeds the accounting par value must be booked as an issuance premium.

3.5Administration of the Subscription Right Plan

The Company is responsible for the management and the administration of the Plan and ensures that all questions of Beneficiaries or Subscription Right Holders are answered accurately and rapidly.

4Beneficiaries of the Plan

Beneficiaries are the individuals as indicated in section 2 (“Definitions - Beneficiary”). The Subscription Rights under this plan are reserved for and granted solely to members of the personnel as defined in article 1:27, 1° of the Belgian Code of Companies and Associations.

Subscription Rights shall not be granted to Employees holding more than 10% of the Company's share capital.

5Acceptance or Refusal of the Offer

The Beneficiaries have the possibility to accept the individual Offer in whole, in part or not at all. Each Beneficiary shall receive a Notice of Acceptance form wherein the Beneficiary mentions his/her decision regarding the Offer: (full or partial) Acceptance or Refusal. Acceptance of the Offer has to be formally established by ticking the relevant paragraph in the Notice of Acceptance.

The Notice of Acceptance needs to be returned prior to the ultimate date of response as set forth in the Notice of Acceptance, duly completed and signed, to the address mentioned in the Notice of Acceptance. Such ultimate date of response cannot be later than 75 calendar days after the date of the Offer.

In case the Beneficiary has not accepted the Offer in writing prior to the date mentioned in the Notice of Acceptance, he shall be deemed to have refused the Offer.

For the purposes of this Plan (including for Belgian fiscal reasons), the Subscription Rights shall be deemed to be granted on the sixtieth day following the date of the Offer if the Offer is accepted within sixty days after the date of the Offer.

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The Subscription Rights are registered in the name of the Beneficiary. In case of acceptance, the Beneficiary will be recorded as a Subscription Right Holder in the register of subscription right holders of the Company. This register is kept at the registered office of the Company, mentioning the identity of the Subscription Right Holders and previous subscription right holders and the number of Subscription Rights held by them. The Subscription Right Holder will receive a confirmation of the number of Subscription Rights he has accepted.

The Nomination and Remuneration Committee may decide to replace or complete the Notice of Acceptance by or with a written Subscription Right Agreement to be signed by the Subscription Right Holder and the Company and which shall contain the conditions determined by the Nomination and Remuneration Committee, in accordance with this Plan.

The Beneficiary who has accepted the Offer will receive the Subscription Rights as soon as these have been issued by the Deed of Issuance.

6Exercise and Payment Conditions

6.1Exercise Term

The Exercise Term is eight (8) years, starting from the date of the Offer.

6.2Vesting of Subscription Rights

Except to the extent expressly stated otherwise in this Plan or decided otherwise by the Board of Directors in accordance with section 8.5, all granted Subscription Rights will fully vest on the first day of the fourth calendar year following the calendar year in which the Grant was made.

6.3Exercise Period

Subscription Rights may not be exercised until the end of the third calendar year following the calendar year in which the Grant was made.

As of the commencement of the fourth calendar year following the calendar year in which the Grant was made, all vested Subscription Rights may be exercised, during an Exercise Period.

The Board of Directors will establish at least one Exercise Period of two weeks per semester. The Exercise Periods shall be notified by or on behalf of the Company to the Beneficiaries.

The Board of Directors shall decide, when required, in accordance with the applicable rules relating to abuse of inside information, to establish closed periods during which the Subscription Rights cannot be exercised.

6.4Conditions of Exercise

Individual Subscription Rights can only be exercised as a whole.

In order to exercise a Subscription Right, the Subscription Right Holder needs to submit an appropriate declaration to that effect (the exercise form) to the Board of Directors or to an authorized person designated by the Board of Directors, and to pay the Exercise Price into a bank account designated by the Company and opened in the name of the Company.

On the exercise form, the Subscription Right Holder needs to mention the number of Subscription Rights he desires to exercise.

In case the bank account is not or not sufficiently credited prior to the end of the Exercise Period, the Subscription Rights will be deemed not to be exercised. The Company will inform the Subscription Right Holder thereof and will reimburse the amount that was deposited too late or was insufficient as soon as possible within the limits set by law. The Subscription Rights will consequently not be lost and remain exercisable at a later stage insofar as the Exercise Term has not expired.

6.5Exercise of the Subscription Rights in accordance with the Belgian Code of Companies and Associations

In case a Subscription Right, that is not exercisable or cannot be exercised in accordance with the issuance conditions (as specified in the Plan), becomes prematurely exercisable pursuant to article 7:71 of the Belgian Code of Companies and Associations and is thus also prematurely exercised pursuant to article 7:71 of the Belgian Code of Companies and Associations, the New Shares that the Subscription Right Holders receives as a result of such Exercise will not be transferable, except with the explicit prior consent of the Board of Directors, until such time as the Subscription Right would have become exercisable in accordance with the Plan. As an exception, in case a Subscription Right is prematurely exercised pursuant to article 7:71 of the Belgian Code of Companies and Associations more than three years before such regular time as the Subscription Right would have become exercisable in accordance with the Plan, the New Shares received as a result of such Exercise will be transferrable as of the commencement of the fourth year following the date of Exercise (i.e., as from the third anniversary of the date of Exercise).

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6.6Change in Control of the Company

Notwithstanding anything to the contrary in this Plan, in the event of a change in Control of the Company, all Subscription Rights that are still outstanding under this Plan at such time shall, in principle, immediately vest (to the extent they had not all vested yet) and become immediately exercisable during an Exercise Period determined by the Board of Directors, provided, however, that in compliance with applicable (tax) laws the Board of Directors is authorized to establish certain conditions for such vesting and/or exercising that will be applicable to some or all of the Subscription Right Holders involved, and provided further that, in the event a public takeover bid is made on the securities of the Company, the Subscription Rights shall immediately become fully vested and exercisable as from the date of the announcement of such public takeover bid by the FSMA. The Board of Directors shall establish an Exercise Period as soon as practicable following the announcement of such public takeover bid.

7Issuance of New Shares

The Company shall only be obliged to issue New Shares pursuant to the Exercise of Subscription Rights if all exercise conditions set forth in chapter 6 have been complied with.

As soon as these exercise conditions are complied with, the New Shares will be issued, taking into account the time needed to fulfill the required administrative formalities. The Board of Directors shall to this effect timely at a date to be determined by the Board of Directors and at least once per semester have the capital increase established by notary deed.

New Shares participate in the profit of the financial year of the Company that started on the first of January of the year in which the relevant New Shares have been issued.

In view of a rapid delivery of the Shares resulting from the exercise of Subscription Rights, the Company may propose to the Subscription Right Holders who have complied with the exercise conditions to receive existing Shares awaiting the issuance of New Shares by notary deed. In such case the Subscription Right Holders will receive an advance of existing Shares subject to the condition that they sign an authorization by which the New Shares will, upon issuance, immediately and directly be delivered to the Company or to any other party who advanced them the existing Shares.

The Board of Directors has granted power of attorney to any two (2) members of the Board of Directors acting jointly, as well as to the managing Director acting individually, with possibility of sub-delegation and the power of subrogation, to take care of the establishment by notary deed of the acceptance of the Subscription Rights offered, the exercise of the Subscription Rights, the issuance of the corresponding number of New Shares, the payment of the exercise price in cash, the corresponding realization of the capital increase, the allocation to the unavailable account “issuance premiums” of the difference between the subscription price for the Shares and the accounting par value, to bring the Articles of Association in accordance with the new situation of the registered capital, to sign and deliver the relevant Euroclear and bank documentation, and to sign and deliver all necessary documents in connection with the delivery of the Shares (acquired as a result of the exercise of the Subscription Rights) to the Beneficiaries.

The Company will take the necessary actions to have the New Shares listed for trading on a regulated market as soon as they have been issued.

8Cessation of the Relationship

8.1Cessation before the date of the Deed of Issuance

If a Beneficiary is not a member of the personnel (within the meaning of article 1:27, 1° of the Belgian Code of Companies and Associations) of the Company or any of its Subsidiaries on the date of the Deed of Issuance, the Beneficiary shall be deemed to have refused the Offer and the Subscription Rights offered to such Beneficiary shall not be issued.

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8.2Good Leaver Situations

If a Good Leaver Situation arises with respect to a Subscription Right Holder, the Subscription Rights of said Subscription Right Holder shall continue to vest as set forth in Section 6.2 (if unvested) and, if and when vested, the Exercise Term of the non-exercised Subscription Rights shall remain unchanged and the Subscription Right Holder will have the time to exercise his non-exercised Subscription Rights during each Exercise Period within the Exercise Term.

As an exception, if the Good Leaver Situation is caused by the decease of the relevant Subscription Right Holder, all Subscription Rights held by such Subscription Right Holder shall pass to his Personal Representative(s) and the Personal Representative(s) will be able to exercise the non-exercised Subscription Rights during a six-month period as from the death of the Subscription Right Holder. All the remaining non-exercised Subscription Rights held by the Personal Representative(s) of the Subscription Right Holder shall become null and void upon the expiry of such six-month period.

8.3Bad Leaver Situation

8.3.1After the end of the third calendar year

In case a Bad Leaver Situation occurs after the end of the third calendar year following the calendar year in which the Grant was made, the relevant Subscription Right Holder will have time to exercise, during an Exercise Period, his non-exercised Subscription Rights until six months after the date of the Bad Leaver Situation. All his remaining non-exercised Subscription Rights shall become null and void upon the expiry of such six-month period.

8.3.2Before the end of the third calendar year

In case the Bad Leaver Situation occurs before the end of the third calendar year following the calendar year in which the Grant was made, all granted Subscription Rights shall automatically become null and void.

8.4Change of employment

8.4.1In case of a cessation of the employment agreement or management agreementfor any reason whatsoever, in whatever form and by whomever initiates it of the relevant Subscription Right Holder accompanied by a simultaneous (other) employment or appointment of the relevant Subscription Right Holder (or a company Controlled by the Subscription Right Holder) as a Manager, Employee or director of the Company or a Subsidiary, the Subscription Rights of said Subscription Right Holder shall continue to vest as set forth in Section 6.2 (if unvested) and, if and when vested, the Exercise Term of the non-exercised Subscription Rights shall remain unchanged and the Subscription Right Holder will have the time to exercise his non-exercised Subscription Rights during each Exercise Period within the Exercise Term.

8.4.2If, however, at any time following such change as described in Section 8.4.1:

(i)the employment agreement or mandate as a director or management agreement of the Subscription Right Holder with the Company or a Subsidiary is terminated at the Subscription Right Holder’s request for any reason other than the effective liquidation of a state pension by the Subscription Right Holder; or

(ii)the Company or a Subsidiary terminates the employment agreement or his mandate as a director or terminates his consultancy agreement because of a breach or insufficiency by the Subscription Right Holder in the performance of the employment agreement or a breach by the Subscription Right Holder of his obligations as a Manager or director,

then such termination shall also be deemed to be a Bad Leaver Situation and the rules set forth in Section 8.3 shall apply unless such termination is accompanied by another change as described in Section 8.4.1.

8.5Deviations

The Board of Directors may at its discretion decide to deviate at any time from the provisions set forth in this chapter 8, provided that such provisions comply with compulsory statutory provisions (in particular with article L. 225-183 paragraph 3 of the French Commercial Code).

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9Amendments and Modifications

In case of share capital amortization, share capital decrease, change in the distribution of the profits, allocation of free Company's shares, share capital increase through incorporation of reserves, profits or premiums, distribution of reserves, or any rights issue of shares or other securities in respect of which the existing shareholders are entitled to exercise preferential subscription rights, the Company shall take any necessary measure in order to protect the Beneficiaries' interests in accordance with the applicable provisions of the French Commercial Code.

The Board of Directors is authorized to take appropriate measures to safeguard the interests of the Subscription Right Holders in case:

-a fundamental change in the Control of the Company occurs;

-a fundamental change in the applicable laws or regulations occurs; or

-a serious and exceptional circumstance jeopardizing the rights of the Beneficiaries occurs.

In addition, the Board of Directors may amend the provisions of this Plan to the benefit of the Subscription Right Holders, to the extent that the contemplated amendments comply with all applicable laws.

This Plan may, if required by the circumstances, be amended by the Company. The Beneficiary shall be informed of such amendments and will be bound by them. The amendments may in no event affect the essential provisions of the Plan. The amendments may not harm the rights of the existing Subscription Right Holders under this Plan. In the event the rights of the existing Subscription Right Holders under this Plan would be harmed, the amendments may not be made without their agreement.

10Dispute Resolution

All disputes relating to this Plan will be brought to the attention of the Board of Directors, who may propose an amicable settlement for a dispute, as the case may be. If required the dispute will be submitted to Courts and Tribunals competent for the judicial area of Antwerp, department of Mechelen (Belgium) whereby all parties involved shall make election of domicile at the seat of the Company. This Plan is governed by Belgian law.

11Final Provisions

11.1Additional Information

The Company will provide the Beneficiary at his request with a copy of the articles of association of the Company and any amendments thereto.

11.2Taxes and Social Security Treatment

The Company or a Subsidiary (which is the employer of the Beneficiary) shall be entitled, in accordance with the applicable law or customs, to apply a withholding on the cash salary or the compensation for the month in which the taxable moment occurs or on the cash salary or the compensation of any other following month, and/or the Beneficiary shall be obliged to pay to the Company or a Subsidiary (if so required by the Company or by a Subsidiary) the amount of any tax and/or social security contributions due or payable because of the fact of the grant, the acceptance, the fact that Subscription Rights become susceptible of being exercised or of the exercise of the Subscription Rights, or due or payable in respect of the delivery of the New Shares.

The Company or a Subsidiary shall be entitled, in accordance with the applicable law or customs, to prepare the required reports, necessary as a result of grant of the Subscription Rights, the fact that Subscription Rights become susceptible of being exercised, or the delivery of the Shares.

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11.3Costs

Stamp duties, stock exchange taxes and similar charges and taxes levied at the occasion of the exercise of the Subscription Rights and/or the delivery of the New Shares or existing Shares shall be borne by the Subscription Right Holder.

Costs relating to the issue of the Subscription Rights or to the issue of New Shares shall be borne by the Company.

11.4Relation to employment agreement

No person has a right to participate in this Plan and participation in this Plan does not give the Beneficiaries a right to future grants of additional Subscription Rights. The grant of Subscription Rights under this Plan does not contain a promise of a continuous employment by the Company or its Subsidiaries.

Notwithstanding any provision of the Plan, the rights and obligations of any individualas determined in the provisions of his/her employment agreement concluded with the Company or a Subsidiary shall not be affected by his/her participation in the Plan or by any right that he/she may have to participate therein.

An individual to whom Subscription Rights are granted in accordance with the Plan shall not be entitled to any damages or compensation as a result of the cessation of his mandate or employment agreement with the Company or a Subsidiary, based on any reason whatsoever (with the exception of abusive or unlawful dismissal in accordance with French case law), to the extent that these rights would arise or might arise based on the cessation of the rights he/she might have or the claims he/she could make concerning the exercise of Subscription Rights pursuant to the Plan because of the cessation of such agreement or by reason of the loss or decrease in value of the rights or benefits.

11.5Shareholders' Meetings

Subscription Right Holders have the right to participate in the Shareholders' Meetings of the Company, but without voting right and only with an advisory voice, subject to complying with the formalities set forth in the convocation for the Shareholders' Meeting.

11.6Communication with Subscription Right Holders

By accepting Subscription Rights, the Subscription Right Holder agrees that documentation can be validly communicated by the Company by e-mail, including convocations for Shareholders' Meetings and documentation pertaining to the exercise of Subscription Rights.

11.7Address Change

Subscription Right Holders are obliged to keep the Company informed of changes to their address and changes to their e-mail address. Communications sent by the Company to the last known address or e-mail address of the Subscription Right Holder are validly made.

11.8Language

In case of discrepancies between the French, Dutch and English versions of the present Subscription Right Plan, the French language version of the Plan shall prevail.

***

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EX-4.35

Confidential

Long-Term Incentive Plan 2020

Exhibit 4.35

Restricted Stock Units/Long-Term Incentive Plan 2020 – 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.

1Definitions

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;
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;

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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 2020;
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;
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.

2Acceptance 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.

3Nature and characteristics of the Restricted Stock Units

3.1No 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.

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3.2Transferability

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.

4Vesting 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.

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.

5Nature and characteristics of the underlying Shares

5.1General

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.

5.2Dividends

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.

5.3Transferability

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-upagreement, if the Participants choose to conclude it.

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6Expenses and taxes

6.1All costs related to the attribution of the Restricted Stock Units and the delivery of the underlying Shares will be borne by Galapagos.

6.2However, 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.

6.3Galapagos 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.

7Situation upon termination of mandate

7.1End 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.

7.2Death 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.

8Amendment to the capital structure and anti-dilution measures

8.1Corporate 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 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.

8.2Public 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);

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(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.

9Insider dealing rules

The Participants shall comply at all times with the Code of Dealing, as well as applicable laws prohibiting insider dealing.

10Electronic register, electronic evidence and electronic delivery

10.1Electronic 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.

10.2Electronic 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.

10.3Electronic 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.

11Modification 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.

12Nature 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;

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(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.

13Privacy and processing of Personal Data

See Schedule 1.

14Confidentiality

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 part of the Plan, or its existence, at any time, unless the disclosure is required by law or by any court of competent jurisdiction.

15Severability

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.

16US 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.

17Applicable 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.

1Identity 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.

2Why and how Personal Data is collected and used

The Personal Data will either be collected via 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.

3Nature 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.

4Other 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 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.

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5Legal 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.

6Rights 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-4.36

Confidential

Retention Plan 2020

Exhibit 4.36

Restricted Stock Units/Retention Plan 2020 – 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.

1Definitions

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;
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;

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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 2020;
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;
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.

2Acceptance 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.

3Nature and characteristics of the Restricted Stock Units

3.1No 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.

3.2Transferability

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.

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4Vesting 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.

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.

5Nature and characteristics of the underlying Shares

5.1General

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.

5.2Dividends

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.

5.3Transferability

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-upagreement, if the Participants choose to conclude it.

6Expenses and taxes

6.1All costs related to the attribution of the Restricted Stock Units and the delivery of the underlying Shares will be borne by Galapagos.

6.2However, 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 Clause5.1.

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6.3Galapagos 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.

7Situation upon termination of mandate

7.1End 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.

7.2Death 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.

8Amendment to the capital structure and anti-dilution measures

8.1Corporate 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 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.

8.2Public 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.

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9Insider dealing rules

The Participants shall comply at all times with the Code of Dealing, as well as applicable laws prohibiting insider dealing.

10Electronic register, electronic evidence and electronic delivery

10.1Electronic 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.

10.2Electronic 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.

10.3Electronic 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.

11Modification 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.

12Nature 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.

5

13Privacy and processing of Personal Data

See Schedule 1.

14Confidentiality

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 part of the Plan, or its existence, at any time, unless the disclosure is required by law or by any court of competent jurisdiction.

15Severability

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.

16US 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.

17Applicable 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.

6

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.

1Identity 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.

2Why and how Personal Data is collected and used

The Personal Data will either be collected via 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.

3Nature 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.

4Other 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 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.

5Legal 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.

7

The Data Controller can also process Personal Data of the Participants to comply with its legal obligations towards the regulatory authorities.

6Rights 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.

8

EX-4.37

Exhibit 4.37

Addendum to the Lease Agreement Intervest Offices & Warehouses NV – Galapagos NV

ADDENDUM 21 TO THE LEASE

AGREEMENT

dated 06/30/1999 and 02/21/2001 AND

ADDENDA

Extra parking spaces

BETWEEN

Intervest Offices & Warehouses NV, public regulated real estate company under Belgian law, with registered office at Uitbreidingstraat 66, 2600 Berchem, with company number 0458.623.918 (Register of Legal Entities Antwerp, Antwerp Department), herewith validly represented by two members of the executive committee, being Marco Hengst, CIO and Inge Tas, CFO.

Hereinafter referred to as the "Lessor”,

AND

Galapagos NV, with registered office in 2800 Mechelen, Generaal de Wittelaan L11 A3, registered in the Register of Legal Entities (Antwerp, Mechelen department) under number 0466.460.429, represented here by Mr. Xavier Maes, General Counsel.

Hereinafter referred to as the “Lessee”,

The Lessor and the Lessee will hereinafter jointly also be referred to as "Parties", or each separately as "Party".

Will first be outlined as follows:

A.By private lease of 06/30/1999, followed by the notarial lease of 02/21/2021 (hereinafter referred to as the “Base Lease Agreement”) ,and Addenda 1 and 2, the Lessee took a lease from the then owner, Innotech NV in Mechelen, for 1,542m² office space, plus 40 parking spaces, located in the Intercity Business Park in Mechelen-Noord, Generaal de Wittelaan L11 A3, lot 1, on the first floor, for a fixed term of 15 years, starting on 06/01/2000, ending on 05/31/2015.

B.Innotech NV merged with Perifund CVA on 06/29/2001, at which time the name was also changed to Intervest Offices NV.

C.By Agreement “Addendum 3” of 02/13/2004, the Lessee additionally leased 322 m² of office space in the same building plus 7 parking spaces, commencing on 12/01/2003, to end on 05/31/2015.

D.By Addendum 4 of 08/01/2005, the Lessor temporarily made available to the Lessee ± 20 m² of floor space located in a larger warehouse on Generaal De Wittelaan 9 in Mechelen.

E.By Addendum 5 of 03/23/2006, the provision under Addendum 4 was prematurely terminated and the Lessee additionally leased a warehouse of ± 100 m² in the same building on Generaal De Wittelaan L11 A3 in Mechelen, commencing on 03/01/2006, to end on 05/31/2015.

F.By Addendum 6 of 02/06/2007, the Lessee additionally leased warehouse space of ± 213 m² in the same building, commencing on 02/01/2007, to end on 05/31/2015.

G.By Addendum 7 of 01/31/2008, the Lessee additionally leased office space and sanitary facilities of ± 513 m², reception space of ± 116 m² and storage space of ± 27 m² in the same building, along with 24 parking spaces, commencing on 01/01/2008, to end on 05/31/2015.

H.By Addendum 8 of 07/14/2009, the Lessee additionally leased office space with private kitchen of ± 716 m² in the same building, commencing on 07/01/2009, to end on 05/31/2015.

I.By Addendum 9 of 09/30/2011, the aforementioned Lease Agreements of 06/30/99 and 02/21/2001 and all the Addenda were extended by 9 years, starting from 06/01/2015 to 05/31/2024, with an additional 458 m² of office space leased on the ground floor, and the premature termination of the lease for 716 m² of office space plus kitchen.

J.By Addendum 10 of 09/30/2011, the Lessee leased the following additional spaces in the adjacent building located in Mechelen, Generaal De Wittelaan 21: 753 m² lab space on the 2nd floor, plus ± 83 m² of the common entrance and corridors on the ground floor, plus 2 technical storage rooms of ± 60 m², and +/- 760 m² lab space on the 1st floor, and 10 parking spaces.

1

K.By Addendum 11 of 05/15/2012, the lease of 30 m² storage space was terminated.

L.By Addendum 12 of 08/08/2013, the Lessee additionally leased in the building located in Mechelen, Generaal De Wittelaan 11A: 398 m² office space, 156 m² storage space and 20 outdoor parking spaces, with effect from 09/01/2013.

M.By Addendum 13 of 04/28/2016, the Lessee additionally leased in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² office space on the 10th floor, and 433 m² on the 9th floor, as well as 30 indoor and 10 outdoor parking spaces, with effect from 06/01/2016.

N.By Addendum 14 of 12/12/2016, the Lessee additional leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 433 m² on the 9th floor, as well as 16 indoor and 5 outdoor parking spaces, with effect from 01/01/2017.

O.By Addendum 15 of 07/03/2017, the Lessee additionally leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² on the 8th floor, as well as 30 indoor and 10 outdoor parking spaces with phased entrance as of 07/01/2017.

P.By Addendum 16 of 06/06/2018, the Lessee additionally leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² on the 7th floor, as well as 12 indoor parking spaces, with effect from 07/01/2018.

Q.By Addendum 17 of 06/20/2018 the Lessee has additionally leased the following:

a. in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² offices (GLA) on the 6th floor consisting of a first part of approximately 433 m² on the east side of the building and a second part of approximately 433 m² on the west side of the building.

b.in the building Intercity Business Park lot 1, located at 2800 Mechelen, Generaal de Wittelaan 11A: 845 m² offices (GLA) on the 1st floor; 21 outside parking spaces nos. 416-426 and nos. 448-457.

Furthermore, the Parties agreed in Addendum 17 to bring the end date of the leased property in the building located in Mechelen, Schaliënhoevedreef 20T forward to 12/31/2021 and to abolish the termination option for these leased properties by 05/31/2020, as well as the related penalty clauses.

R.By Addendum 18 of 06/01/2019 the Lessee has additionally leased the following:

a.at the office site “Intercity Business Park” located at Generaal De Wittelaan 11A in 2800 Mechelen, unit 1/L on the first floor; 23 outdoor parking spaces

b.in the building Mechelen Campus Toren, located at Schaliënhoevedreef 20T in 2800 Mechelen, 10 basement and 30 above-ground parking spaces.

S.By Addendum 19 of 10/17/2019, the Lessee has additionally leased the following:

a.in the building located in Mechelen, Schaliënhoevedreef 20F: 609 m² office space GLA, being unit 0/A on the ground floor, 640 m²office space GLA, being unit 1/A on the first floor, 640 m²office space GLA, being unit 2/A on the second floor, 3 indoor parking spaces with nos. 506, 507 and 508 and 16 outdoor parking spaces with nos. 372 through 376 + 794 through 802 + 806 + 807

b.in the building located in Mechelen, Schaliënhoevedreef 20^E: 9 indoor parking spaces with nos. 348 through 350 + 354 + 355 + 361 + 362 + 365 + 366 and 9 outdoor parking spaces with nos. 345 through 353

c.in the building located in Mechelen, Schaliënhoevedreef 20D: 9 indoor parking spaces with nos. 246 through 249 + 299 through 303

T.By Addendum 20 of 12/18/2019, Parties agree to exchange the outdoor parking spaces with nos. 806 and 807 (Building F) for the outdoor parking spaces with nos. 354 and 355 (Building E)

U.By means of this Addendum to the Base Lease Agreement (hereinafter referred to as "Addendum n° 21") the Parties agree to make a number of amendments to the Base Lease Agreement, and this to the terms and conditions as included in this Addendum n° 21.

2

IT IS NOW EXPRESSLY AGREED AS FOLLOWS:

Article 1: Restriction of the Scope of this Addendum n° 20

This Addendum n° 21 is an addendum to the Base Lease Agreement as amended by all previous addenda. The provisions of the Base Lease Agreement (as amended by all previous addenda) from which this Addendum n° 21 does not explicitly deviate remain fully applicable.

The defined terms and definitions of the Base Lease Agreement used in the present Addendum n° 21 shall therefore have the same meaning as in the Base Lease Agreement, unless this Addendum n° 21 expressly provides otherwise.

Article 2 – The Leased Property

The Lessee additionally leases at the office park “Intercity Business Park”, located at the Generaal De Wittelaan 2800 Mechelen 83 temporary outdoor parking spaces with nos:

359B, 360-365, 645-646, 686-688, 1012-1066, 1104-1119,

As these spaces are shown on the floor plan which was attached to this addendum as Annex 1 and which is an integral part thereof.

Article 3 – Duration

This Addendum n° 21 will enter into force on 03/01/2020 and end on 05/31/2024.

Both the Lessee and the Lessor may cancel these parking spaces at all times, by registered letter addressed to the other Party and subject to a notice period of 3 months.

63 of these 83 spaces may not be canceled until 03/31/2021.

3

Article 4 - Rent increase

Per the effective date of this addendum, the Annual Rent is increased with €37,150 (Additional Rent), to be indexed in accordance with the conditions of the Base Lease Agreement, whereby the base index for this increase corresponds with that of January 2020. For the month of March 2020, a rent-free period will be granted for these parking spaces; therefore, the rent will only be due starting from the month of April 2020.

Article 5 – Security

In order to secure the fulfilment of all of its obligations under this addendum, the Lessee before the start of this addendum will increase the bank guarantee with an amount of six months of the Additional Rent.

Article 6 – Registration

The Lessor will have this Addendum registered, where the registration fees are at the Lessee's expense.

**********************

4

Thus, drawn up in triplicate on March 9, 2020, whereby each party acknowledges having received its copy, with one copy intended for the registration.

/s/	/s/
Intervest Offices & Warehouses NV	Galapagos NV
The Landlord	The Lessee

Annex:

1.Plan with indication of new parking spaces.

5

Annex 1:

EX-4.38

Exhibit 4.38

Addendum to the Lease Agreement Intervest Offices & Warehouses NV – Galapagos NV

ADDENDUM 22

TO THE LEASE AGREEMENT

dated 06/30/1999 and 02/21/2001 AND ADDENDA

Extension of Offices and Parking Spaces Mechelen Campus Building F

BETWEEN

Intervest Offices & Warehouses NV, public regulated real estate company under Belgian law, with registered office at Uitbreidingstraat 66, 2600 Berchem, with company number 0458.623.918 (Register of Legal Entities Antwerp, Antwerp Department), herewith validly represented by two members of the executive committee, being “Gunther Gielen, CEO and member of the executive committee and/or Inge Tas, CFO and member of the executive committee, and/or Marco Hengst, CIO of the executive committee”.

Hereinafter referred to as the "Lessor”,

AND

Galapagos NV, with registered office in 2800 Mechelen, Generaal de Wittelaan L11 A3, registered in the Register of Legal Entities (Antwerp, Mechelen department) under number 0466.460.429, represented here by Mr. Xavier Maes, General Counsel.

Hereinafter referred to as the “Lessee”,

The Lessor and the Lessee will hereinafter jointly also be referred to as "Parties", or each separately as "Party".

Will first be outlined as follows:

A.By private lease of 06/30/1999, followed by the notarial lease of 02/21/2021 (hereinafter referred to as the “Base Lease Agreement”), and Addenda 1 and 2, the Lessee took a lease from the then owner, Innotech NV in Mechelen, for 1,542m² office space, plus 40 parking spaces, located in the Intercity Business Park in Mechelen-Noord, Generaal de Wittelaan L11 A3, lot 1, on the first floor, for a fixed term of 15 years, starting on 06/01/2000, ending on 05/31/2015.

B.Innotech NV merged with Perifund CVA on 06/29/2001, at which time the name was also changed to Intervest Offices NV.

C.By Agreement “Addendum 3” of 02/13/2004, the Lessee additionally leased 322 m² of office space in the same building plus 7 parking spaces, commencing on 12/01/2003, to end on 05/31/2015.

D.By Addendum 4 of 08/01/2005, the Lessor temporarily made available to the Lessee ± 20 m² of floor space located in a larger warehouse on Generaal De Wittelaan 9 in Mechelen.

E.By Addendum 5 of 03/23/2006, the provision under Addendum 4 was prematurely terminated and the Lessee additionally leased a warehouse of ± 100 m² in the same building on Generaal De Wittelaan L11 A3 in Mechelen, commencing on 03/01/2006, to end on 05/31/2015.

F.By Addendum 6 of 02/06/2007, the Lessee additionally leased warehouse space of ± 213 m² in the same building, commencing on 02/01/2007, to end on 05/31/2015.

G.By Addendum 7 of 01/31/2008, the Lessee additionally leased office space and sanitary facilities of ± 513 m², reception space of ± 116 m² and storage space of ± 27 m² in the same building, along with 24 parking spaces, commencing on 01/01/2008, to end on 05/31/2015.

H.By Addendum 8 of 07/14/2009, the Lessee additionally leased office space with a private kitchen of ± 716 m² in the same building, commencing on 07/01/2009, to end on 05/31/2015.

1

I.By Addendum 9 of 09/30/2011, the aforementioned Lease Agreements of 06/30/99 and 02/21/2001 and all the Addenda were extended by 9 years, starting from 06/01/2015 to 05/31/2024, with an additional 458 m² of office space leased on the ground floor, and the premature termination of the lease for 716 m² of office space plus kitchen.

J.By Addendum 10 of 09/30/2011, the Lessee leased the following additional spaces in the adjacent building located in Mechelen, Generaal De Wittelaan 21: 753 m² lab space on the 2nd floor, plus ± 83 m² of the common entrance and corridors on the ground floor, plus 2 technical storage rooms of ± 60 m², and +/- 760 m² lab space on the 1st floor, and 10 parking spaces.

K.By Addendum 11 of 05/15/2012, the lease of 30 m² storage space was terminated.

L.By Addendum 12 of 08/08/2013, the Lessee additionally leased in the building located in Mechelen, Generaal De Wittelaan 11A: 398 m² office space, 156 m² storage space and 20 outdoor parking spaces, with effect from 09/01/2013.

M.By Addendum 13 of 04/28/2016, the Lessee additionally leased in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² office space on the 10th floor, and 433 m² on the 9th floor, as well as 30 indoor and 10 outdoor parking spaces, with effect from 06/01/2016.

N.By Addendum 14 of 12/12/2016, the Lessee additional leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 433 m² on the 9th floor, as well as 16 indoor and 5 outdoor parking spaces, with effect from 01/01/2017.

O.By Addendum 15 of 07/03/2017, the Lessee additionally leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² on the 8th floor, as well as 30 indoor and 10 outdoor parking spaces with phased entrance as of 07/01/2017.

P.By Addendum 16 of 06/06/2018, the Lessee additionally leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² on the 7th floor, as well as 12 indoor parking spaces, with effect from 07/01/2018.

Q.By Addendum 17 of 06/20/2018 the Lessee has additionally leased the following:

a. in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² offices (GLA) on the 6th floor consisting of a first part of approximately 433 m² on the east side of the building and a second part of approximately 433 m² on the west side of the building.

b.in the building Intercity Business Park lot 1, located at 2800 Mechelen, Generaal de Wittelaan 11A: 845 m² offices (GLA) on the 1st floor; 21 outdoor parking spaces nos. 416-426 and nos. 448-457.

Furthermore, the Parties agreed in Addendum 17 to bring the end date of the leased property in the building located in Mechelen, Schaliënhoevedreef 20T forward to 12/31/2021 and to abolish the termination option for these leased properties by 05/31/2020, as well as the related penalty clauses.

R.By Addendum 18 of 06/01/2019 the Lessee has additionally leased the following:

a.at the office site “Intercity Business Park” located at Generaal De Wittelaan 11A in 2800 Mechelen, unit 1/L on the first floor; 23 outdoor parking spaces

b.in the building Mechelen Campus Toren, located at Schaliënhoevedreef 20T in 2800 Mechelen, 10 underground and 30 above-ground parking spaces.

S.By Addendum 19 of 10/17/2019, the Lessee has additionally leased the following:

a.in the building located in Mechelen, Schaliënhoevedreef 20F: 609m²office space GLA, being unit 0/A on the ground floor, 640m²office space GLA, being unit 1/A on the first floor, 640m²office space GLA, being unit 2/A on the second floor, 3 indoor parking spaces with nos. 506, 507 and 508 and 16 outdoor parking spaces with nos. 372 through 376 + 794 through 802 + 806 + 807

b.in the building located in Mechelen, Schaliënhoevedreef 20^E: 9 indoor parking spaces with nos. 348 through 350 + 354 + 355 + 361 + 362 + 365 + 366 and 9 outdoor parking spaces with nos. 345 through 353

c.In the building located in Mechelen, Schaliënhoevedreef 20D: 9 indoor parking spaces with nos. 246 through 249 + 299 through 303

T.By Addendum 20 of 12/18/2019, Parties agree to exchange the outdoor parking spaces with nos. 806 and 807 (Building F) for the outdoor parking spaces with nos. 354 and 355 (Building E)

U.By Addendum 21 of 03/09/2020, parties agree to temporarily lease 83 extra parking spaces at the Intercity Business Park.

2

V.By means of this Addendum to the Base Lease Agreement (hereinafter referred to as "Addendum n° 22") the Parties agree to make a number of amendments to the Base Lease Agreement, and this to the terms and conditions as included in this Addendum n° 22.

IT IS NOW EXPRESSLY AGREED AS FOLLOWS:

Article 1: Restriction of the Scope of This Addendum n° 22

This Addendum n° 22 is an addendum to the Base Lease Agreement as amended by all previous addenda. The provisions of the Base Lease Agreement (as amended by all previous addenda) from which this Addendum n° 22 does not explicitly deviate remain fully applicable.

The defined terms and definitions of the Base Lease Agreement used in this Addendum n° 22 shall therefore have the same meaning as in the Base Lease Agreement, unless this Addendum n° 22 expressly provides otherwise.

Article 2 – The Leased Property

Parties agree to expand the leased spaces under the Base Lease Agreement (as amended by Addenda 1 to 21) with effect from 08/17/2020 with:

at the office site Mechelen Campus, located at Schaliënhoevedreef 20F in 2800 Mechelen:

(i)640m² gross leasable area ("GLA") office space, Unit "3/A" on the third floor, incl. a share of common areas, as indicated on the plan in Annex 1

(ii)9 outdoor parking spaces, nos. 806, 807, 365 through 371, as indicated on the plan in Annex 2

(iii)9 indoor parking spaces, nos. 406 through 413, as indicated on the plan in Annex 3.

Hereinafter referred to as "Leased Property”.

Article 3 – Duration

This Addendum n° 22 will enter into force on 08/17/2020 and end on 12/31/2021. The Lessee in line with Art. 3.3 of Addendum 17, will be able to cancel the Leased Property on 06/30/2021, subject to a cancelation by registered letter with a notice period of at least 6 months. As of 06/30/2021, the Leased Property may be canceled monthly, subject to at least one month's advance notice by registered letter.

The continued use of the Leased Property after the expiry of the contractual period described above shall under no circumstances be regarded as a sign of acceptance of tacit renewal on the part of the Lessor.

Article 4 – Additional Rent

The additional annual rent for the "Leased Property" is fixed at:

1)€125/m²/year for the offices (both private and common areas) or €80,000/year;

2)€450/year/per outdoor parking space, or €4,050/year for 9 outdoor parking spaces

3)€900/year/indoor parking space, or €8,100/year for 9 underground indoor parking spaces

Or €92,150/year or €23,037.50/quarter.

This additional rent, together with the rent payable under the Base Lease Agreement (as amended by Addendum 1 to 21), will be paid on a quarterly basis.

Article 5 – Indexation of the Rent

The annual indexation of the additional rent, mentioned in Article 4 of this Addendum 22 and linked to the 2013 health index, will take place on January 1st of each year (and for the first time on August 17, 2021), based on the 2019 health index.

Article 6 – Fees

Parties agree to increase the provision of the fees from 08/17/2020 with €17,920/year or €4,480/quarter.

Article 7 – Deposit

The Lessee shall, within one month after the signing of this Addendum 22, increase the amount of the existing bank guarantee by an amount equal to 6 months lease or €46,075.

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Article 8 - Condition of the Leased Property at the Time of Transfer

The Leased Property will be leased from 08/17/2020 in “as is” condition and known to the Lessee, who declares to have inspected the Leased Property and examined all its details.

A location description of the Leased Property, which will bind the Parties definitively, will be prepared no later than on the effective date of this agreement.

Parties agree that the Lessee is permitted to remove the current existing partition walls without the Lessee being obligated to restore these at the time of the return of the Leased Property.

This building survey will be drawn up at the first request of one of the Parties by Mr. Collin, surveyor and sworn assessor of real estate, who is hereby appointed by mutual agreement by the Parties. The fee of the expert will be born equally by each of the Parties, each for half. This building survey forms an integral part of the Base Lease Agreement as amended by this Addendum 19.

Article 9 – Special Provisions

1/The Leased Property will be leased in “as is” condition, without the Lessor having to make any adjustments. However, the Lessor shall ensure that only the following work shall be carried out at its expense on the shortest reasonable timescale:

-Fitting new carpet (T4 anti-static tile carpet)

-Painting of all fixed walls

-Replacement of damaged or black ceiling tiles

-Replacement of structure of ceiling of the current kitchen area

-General clean up

-Adjustment of systems (HVAC), if these would not function correctly and in conformity in an open landscape

-Ensure sprinkler system works properly

2/If the Lessee does not wish to keep the archiving space located at the parking spaces 411 through 414, this will be demolished at the expense of the Lessor.

Article 10 – Registration

The Lessor will have this Addendum registered, where the registration fees are at the Lessee's expense.

The registration duties amount to 0.20% and are calculated on the combined amount of the lease price and the joint charges for the entire duration of this Agreement. For tax purposes, these joint charges will be imposed based on this Addendum and are estimated at 10% of the additional lease.

Article 11 – Data Protection

If and to the extent that Intervest processes personal data of the Lessee (including Lessee's appointees), Intervest will do so in accordance with the applicable data protection legislation and Intervest's privacy statement. Intervest's privacy statement is annexed to this agreement. The most recent version of Intervest's privacy statement is always available at https://www.intervest.be/nl/privacyverklaring-huurders. The Lessee undertakes to check regularly on this web page whether Intervest's privacy statement has been changed. The Lessee undertakes to communicate Intervest's privacy statement to its appointees

****************************

Thus, drawn up in triplicate on July 27, 2020, whereby each party acknowledges having received its copy, with one copy intended for the registration. 

/s/	/s/
Intervest Offices & Warehouses NV	Galapagos NV
The Lessor	The Lessee

4

Appendixes:

1)Office plan of the Leased Property 3/A on the third floor

2)Plan of outdoor parking spaces

3)Plan of indoor parking spaces

Annex 1: office plan 3rd floor building F

5

Annex 2: Plan of outdoor parking spaces

6

Annex 3: Plan of indoor parking spaces

EX-4.39

Addendum to the Lease Agreement Intervest Offices & Warehouses NV – Galapagos NV

Exhibit 4.39

ADDENDUM 20

TO THE LEASE AGREEMENT

dated 06/30/1999 and 02/21/2001 AND ADDENDA

Exchange parking spaces

BETWEEN

Intervest Offices & Warehouses NV, public regulated real estate company under Belgian law, with registered office at Uitbreidingstraat 66, 2600 Berchem, with company number 0458.623.918 (Register of Legal Entities Antwerp, Antwerp Department), herewith validly represented by two members of the executive committee, being Marco Hengst, CIO and Inge Tas, CFO, and Marco Hengst, CIO.

Hereinafter referred to as the "Lessor”,

AND

Galapagos NV, with registered office in 2800 Mechelen, Generaal de Wittelaan L11 A3, registered in the Register of Legal Entities (Antwerp, Mechelen department) under number 0466.460.429, represented here by Mr. Xavier Maes, General Counsel.

Hereinafter referred to as the “Lessee”,

The Lessor and the Lessee will hereinafter jointly also be referred to as "Parties", or each separately as "Party".

Will first be outlined as follows:

1. By private lease of 06/30/1999, followed by the notarial lease of 02/21/2021 (hereinafter referred to as the “Base Lease Agreement”) ,and Addenda 1 and 2, the Lessee took a lease from the then owner, Innotech NV in Mechelen, for 1,542m² office space, plus 40 parking spaces, located in the Intercity Business Park in Mechelen-Noord, Generaal de Wittelaan L11 A3, lot 1, on the first floor, for a fixed term of 15 years, starting on 06/01/2000, ending on 05/31/2015.

2. Innotech NV merged with Perifund CVA on 06/29/2001, at which time the name was also changed to Intervest Offices NV.

3. By Agreement “Addendum 3” of 02/13/2004, the Lessee additionally leased 322 m² of office space in the same building plus 7 parking spaces, commencing on 12/01/2003, to end on 05/31/2015.

4. By Addendum 4 of 08/01/2005, the Lessor temporarily made available to the Lessee ± 20 m² of floor space located in a larger warehouse on Generaal De Wittelaan 9 in Mechelen.

5. By Addendum 5 of 03/23/2006, the provision under Addendum 4 was prematurely terminated and the Lessee additionally leased a warehouse of ± 100 m² in the same building on Generaal De Wittelaan L11 A3 in Mechelen, commencing on 03/01/2006, to end on 05/31/2015.

6. By Addendum 6 of 02/06/2007, the Lessee additionally leased warehouse space of ± 213 m² in the same building, commencing on 02/01/2007, to end on 05/31/2015.

7. By Addendum 7 of 01/31/2008, the Lessee additionally leased office space and sanitary facilities of ± 513 m², reception space of ± 116 m² and storage space of ± 27 m² in the same building, along with 24 parking spaces, commencing on 01/01/2008, to end on 05/31/2015.

8. By Addendum 8 of 07/14/2009, the Lessee additionally leased office space with private kitchen of ± 716 m² in the same building, commencing on 07/01/2009, to end on 05/31/2015.

9. By Addendum 9 of 09/30/2011, the aforementioned Lease Agreements of 06/30/99 and 02/21/2001 and all the Addenda were extended by 9 years, starting from 06/01/2015 to 05/31/2024, with an additional 458 m² of office space leased on the ground floor, and the premature termination of the lease for 716 m² of office space plus kitchen.

10. By Addendum 10 of 09/30/2011, the Lessee leased the following additional spaces in the adjacent building located in Mechelen, Generaal De Wittelaan 21: 753 m² lab space on the 2nd floor, plus ± 83 m² of the common entrance and corridors on the ground floor, plus 2 technical storage rooms of ± 60 m², and +/- 760 m² lab space on the 1st floor, and 10 parking spaces.

Pages 1 of 5

11. By Addendum 11 of 05/15/2012, the lease of 30 m² storage space was terminated.

12. By Addendum 12 of 08/08/2013, the Lessee additionally leased in the building located in Mechelen, Generaal De Wittelaan 11A: 398 m² office space, 156 m² storage space and 20 outdoor parking spaces, with effect from 09/01/2013.

13. By Addendum 13 of 04/28/2016, the Lessee additionally leased in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² office space on the 10th floor, and 433 m² on the 9th floor, as well as 30 indoor and 10 outdoor parking spaces, with effect from 06/01/2016.

14. By Addendum 14 of 12/12/2016, the Lessee additional leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 433 m² on the 9th floor, as well as 16 indoor and 5 outdoor parking spaces, with effect from 01/01/2017.

15. By Addendum 15 of 07/03/2017, the Lessee additionally leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² on the 8th floor, as well as 30 indoor and 10 outdoor parking spaces with phased entrance as of 07/01/2017.

16. By Addendum 16 of 06/06/2018, the Lessee additionally leased the following in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² on the 7th floor, as well as 12 indoor parking spaces, with effect from 07/01/2018.

17. By Addendum 17 of 06/20/2018 the Lessee has additionally leased the following:

a. in the building located in Mechelen, Schaliënhoevedreef 20T: 866 m² offices (GLA) on the 6th floor consisting of a first part of approximately 433 m² on the east side of the building and a second part of approximately 433 m² on the west side of the building.

b.   in the building Intercity Business Park lot 1, located at 2800 Mechelen, Generaal de Wittelaan 11A: 845 m² offices (GLA) on the 1st floor; 21 outside parking spaces nos. 416-426 and nos. 448-457.

Furthermore, the Parties agreed in Addendum 17 to bring the end date of the leased property in the building located in Mechelen, Schaliënhoevedreef 20T forward to 12/31/2021 and to abolish the termination option for these leased properties by 05/31/2020, as well as the related penalty clauses.

Pages 2 of 5

18. By Addendum 18 of 06/01/2019 the Lessee has additionally leased the following:

1. at the office site “Intercity Business Park” located at Generaal De Wittelaan 11A in 2800 Mechelen, unit 1/L on the first floor; 23 outdoor parking spaces
2. in the building Mechelen Campus Toren, located at Schaliënhoevedreef 20T in 2800 Mechelen, 10 basement and 30 above-ground parking spaces.

19. By Addendum 19 of 10/17/2019, the Lessee has additionally leased the following:
    1. in the building located in Mechelen, Schaliënhoevedreef 20F: 609 m² office space GLA, being unit 0/A on the ground floor, 640 m²office space GLA, being unit 1/A on the first floor, 640 m²office space GLA, being unit 2/A on the second floor, 3 indoor parking spaces with nos. 506, 507 and 508 and 16 outdoor parking spaces with nos. 372 through 376 + 794 through 802 + 806 + 807
    2. in the building located in Mechelen, Schaliënhoevedreef 20E: 9 indoor parking spaces with nos. 348 through 350 + 354 + 355 + 361 + 362 + 365 + 366 and 9 outdoor parking spaces with nos. 345 through 353
    3. in the building located in Mechelen, Schaliënhoevedreef 20D: 9 indoor parking spaces with nos. 246 through 249 + 299 through 303

20. By means of this Addendum to the Base Lease Agreement (hereinafter referred to as "Addendum n° 20") the Parties agree to make a number of amendments to the Base Lease Agreement, and this to the terms and conditions as included in this Addendum n° 20.

IT IS NOW EXPRESSLY AGREED AS FOLLOWS:

Article 1: Restriction of the Scope of this Addendum n° 20

This Addendum n° 20 is an addendum to the Base Lease Agreement as amended by all previous addenda. The provisions of the Base Lease Agreement (as amended by all previous addenda) from which this Addendum n° 20 does not explicitly deviate remain fully applicable.

The defined terms and definitions of the Base Lease Agreement used in the present Addendum n° 20 shall therefore have the same meaning as in the Base Lease Agreement, unless this Addendum n° 20 expressly provides otherwise.

Article 2 – The Leased Property

The parties agree to exchange the outdoor parking spaces with nos. 806 and 807 (Building F) for the outdoor parking spaces with nos. 354 and 355 (Building E). Reference is made to the plan in attachment.

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Article 3 – Duration

This Addendum n° 20 will enter into force on 12/01/2019 and follows the provisions and modalities of addendum 19.

Article 4 – Registration

The Lessor will have this Addendum registered, where the registration fees are at the Lessee's expense.

****************************

Thus, drawn up in triplicate on December 18, 2019, whereby each party acknowledges having received its copy, with one copy intended for the registration.

/s/	/s/
IntervestOffices & Warehouses NV	Galapagos NV
The Landlord	The Lessee

Pages 4 of 5

Annex:

1. Plan with indication of new parking spaces.

Pages 5 of 5

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 25, 2021

/s/ Onno van de Stolpe

Name:Onnovan deStolpe

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.

Date: March 25, 2021

/s/ BartFilius

Name:BartFilius

Title:  Chief Financial 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, 2020 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 25, 2021

/s/ Onno van de Stolpe

Name:     Onnovan deStolpe

Title:       Chief Executive Officer

(Principal ExecutiveOfficer)

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, 2020 as filed with the U.S. Securities and Exchange Commission on the date hereof (the “Report”), I, Bart Filius, Chief Financial 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 25, 2021

/s/ BartFilius

Name: BartFilius

Title:  Chief Financial 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. 333-249416, 333-231765, 333-225263, 333-218160, 333-215783, 333-211834, 333-208697, 333-204567 on Form S-8 of our reports dated March 25, 2021, 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, 2020.

Zaventem, Belgium, March 25, 2021

/s/ Deloitte Bedrijfsrevisoren/Réviseurs d’Entreprises CVBA/SCRL

XML

Document and Entity Information	12 Months Ended
	Dec. 31, 2020 shares
Document and Entity Information [Abstract]
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, 2020
Entity Registrant Name	GALAPAGOS NV
Entity Common Stock, Shares Outstanding	65,411,767
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
Entity Shell Company	false
Entity Central Index Key	0001421876
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity File Number	001-37384
Entity Incorporation, State or Country Code	C9
Document Accounting Standard	U.S. GAAP
Entity Addresses [Line Items]
Entity Address, Address Line One	Generaal De Wittelaan L11 A3
Entity Address, City or Town	Mechelen
Entity Address, Postal Zip Code	2800
Entity Address, Country	BE
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, Postal Zip Code	2800
Entity Address, Country	BE
Contact Personnel Fax Number	32 15 342 901
Contact Personnel Name	Onno van de Stolpe

XML

Consolidated Statement of Financial Position - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Intangible assets	€ 67,565	€ 24,927	€ 3,632
Property, plant and equipment	103,378	66,052	23,137
Deferred tax assets	4,475	4,205	2,514
Non-current trade receivables	50,000	0	0
Non-current R&D incentives receivables	111,624	93,407	73,443
Other non-current assets	11,343	14,091	7,919
Non-current assets	348,384	202,682	110,645
Trade and other receivables	148,418	54,009	18,609
Current R&D incentives receivables	24,104	21,949	11,203
Current financial investments	3,026,278	3,919,216	0
Cash and cash equivalents	2,135,187	1,861,616	1,290,796
Other current assets	11,953	9,138	8,244
Current assets from continuing operations	5,345,941	5,865,927	1,328,851
Assets classified as held for sale	23,406	0	0
Total current assets	5,369,347	5,865,927	1,328,851
Total assets	5,717,731	6,068,609	1,439,496
Equity and liabilities
Share capital	291,312	287,282	236,540
Share premium account	2,727,840	2,703,583	1,277,780
Other reserves	(10,907)	(4,842)	(735)
Translation differences	(3,189)	(1,142)	(1,557)
Accumulated losses	(334,701)	(109,223)	(297,779)
Total equity	2,670,355	2,875,658	1,214,249
Retirement benefit liabilities	14,996	8,263	3,764
Non-current lease liabilities	23,035	19,558	0
Other non-current liabilities	8,096	6,989	1,578
Non-current deferred income	2,365,974	2,586,348	0
Non-current liabilities	2,412,101	2,621,158	5,342
Current lease liabilities	6,401	5,826	0
Trade and other liabilities	172,386	143,434	68,928
Current tax payable	1,248	2,037	1,175
Current financial instruments	3,164	6,198	0
Current deferred income	443,159	414,298	149,801
Current liabilities from continuing operations	626,357	571,793	219,905
Liabilities directly associated with assets classified as held for sale	8,917	0	0
Current liabilities	635,274	571,793	219,905
Total liabilities	3,047,375	3,192,951	225,247
Total equity and liabilities	€ 5,717,731	€ 6,068,609	€ 1,439,496

XML

Consolidated Statement of Operations - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Consolidated Statement of Operations
Revenues	€ 478,053	€ 834,901	[1]	€ 278,666	[1]
Other income	52,207	50,896	[1]	29,000	[1]
Total revenues and other income	530,260	885,797	[1]	307,666	[1]
Research and development expenses	(523,667)	(420,090)	[1]	(316,222)	[1]
Sales and marketing expenses	(66,468)	(24,577)	[1]	(4,146)	[1]
General and administrative expenses	(118,757)	(72,382)	[1]	(34,377)	[1]
Total operating expenses	(708,892)	(517,049)	[1]	(354,746)	[1]
Operating income/loss (-)	(178,632)	368,748	[1]	(47,080)	[1]
Fair value re-measurement of share subscription agreement and warrants	3,034	(181,644)	[1]	0	[1]
Other financial income	18,667	21,389	[1]	18,264	[1]
Other financial expenses	(152,844)	(59,968)	[1]	(2,602)	[1]
Income/loss (-) before tax	(309,775)	148,525	[1]	(31,417)	[1]
Income taxes	(1,226)	165	[1]	(822)	[1]
Net income/loss (-) from continuing operations	(311,001)	148,689	[1]	(32,240)	[1]
Net income from discontinued operations, net of tax	5,565	1,156	[1]	2,981	[1]
Net income/loss (-)	(305,436)	149,845	[1],[2]	(29,259)	[1],[2]
Net income/loss (-) attributable to:
Owners of the parent	€ (305,436)	€ 149,845	[1]	€ (29,259)	[1]
Basic income/loss (-) per share	€ (4.69)	€ 2.60	[1]	€ (0.56)	[1]
Diluted income/loss (-) per share	(4.69)	2.49	[1]	(0.56)	[1]
Basic income/loss (-) per share from continuing operations	(4.78)	2.58	[1]	(0.62)	[1]
Diluted income/loss (-) per share from continuing operations	€ (4.78)	€ 2.47	[1]	€ (0.62)	[1]
Weighted average number of shares - Basic (in '000 shares)	65,075	57,614		52,113

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

[2] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued operations in 2020.

XML

Consolidated Statement of Comprehensive Income/Loss (-) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018	[1]
Consolidated Statement of Comprehensive Income/Loss
Net income/loss (-)	€ (305,436)	€ 149,845	[1],[2]	€ (29,259)	[2]
Items that will not be reclassified subsequently to profit or loss:
Re-measurement of defined benefit obligation	(6,065)	(4,107)	[1]	(94)
Items that may be reclassified subsequently to profit or loss:
Translation differences, arisen from translating foreign activities	(1,024)	415	[1]	197
Realization of translation differences upon liquidation of foreign operations	(1,023)	0		0
Other comprehensive income/loss (-), net of income tax	(8,112)	(3,692)	[1]	103
Total comprehensive income/loss (-) attributable to:
Owners of the parent	(313,548)	146,154	[1]	(29,155)
Total comprehensive income/loss (-) attributable to owners of the parent arises from:
Continuing operations	(318,841)	145,050	[1]	(32,159)
Discontinued operations	5,293	1,104	[1]	3,003
Owners of the parent	€ (313,548)	€ 146,154	[1]	€ (29,155)

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued operations in 2020.

[2] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

XML

Consolidated Statement of Changes in Equity - EUR (€) € in Thousands	Total		Warrant A Gilead	Share capital.	Share capital. Warrant A Gilead	Share premium account	Share premium account Warrant A Gilead	Translation differences	Other reserves	Accumulated losses
Balance at beginning of period (IFRS 15) at Dec. 31, 2017	€ (83,220)									€ (83,220)
Balance at beginning of period (IFRS 9) at Dec. 31, 2017	0								€ 619	(619)
Balance at beginning of period (Restated total equity at January 1) at Dec. 31, 2017	928,766			€ 233,414		€ 993,025		€ (1,754)	(641)	(295,280)
Balance at beginning of period at Dec. 31, 2017	1,011,983			233,414		993,025		(1,754)	(1,260)	(211,441)
Net income/loss (-)	(29,259)	[1],[2]								(29,259)
Other comprehensive income / loss (-)	103	[1]						197	(94)
Total comprehensive income / loss (-)	(29,155)							197	(94)	(29,259)
Share-based compensation	26,757									26,757
Issue of new shares	296,188			16,021		280,167
Share issue costs	(15,964)			(15,964)
Exercise of warrant/ subscription rights	7,657			3,069		4,588
Balance at end of period (IFRS 9) at Dec. 31, 2018	416									416
Balance at end of period (Restated total equity at January 1) at Dec. 31, 2018	1,214,665			236,540		1,277,780		(1,557)	(735)	(297,363)
Balance at end of period at Dec. 31, 2018	1,214,249			236,540		1,277,780		(1,557)	(735)	(297,779)
Net income/loss (-)	149,845	[1],[2]								149,845
Other comprehensive income / loss (-)	(3,692)	[1]						415	(4,107)
Total comprehensive income / loss (-)	146,154							415	(4,107)	149,845
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	960,087			36,945		923,142
Share issue costs	(4,447)			(4,447)
Exercise of warrant/ subscription rights	17,167		€ 368,035	4,082	€ 14,162	13,085	€ 353,873
Balance at end of period at Dec. 31, 2019	2,875,658			287,282		2,703,583		(1,142)	(4,842)	(109,223)
Net income/loss (-)	(305,436)									(305,436)
Other comprehensive income / loss (-)	(8,112)							(2,047)	(6,065)
Total comprehensive income / loss (-)	(313,548)							(2,047)	(6,065)	(305,436)
Share-based compensation	79,959									79,959
Share issue costs				0
Exercise of warrant/ subscription rights	28,288			4,031		24,257
Balance at end of period at Dec. 31, 2020	€ 2,670,355			€ 291,312		€ 2,727,840		€ (3,189)	€ (10,907)	€ (334,701)

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued operations in 2020.

[2] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Consolidated Statement of Cash Flows - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Net income/loss (-)	€ (305,436)	€ 149,845	[1],[2]	€ (29,259)	[1],[2]
Adjustment for non-cash transactions	230,723	248,027		21,753
Adjustment for items to disclose separately under operating cash flow	4,067	(7,731)		(4,389)
Adjustment for items to disclose under investing and financing cash flows	(2,472)	(5,061)		(668)
Change in working capital other than deferred income	(146,092)	12,698		19,922
Increase/decrease (-) in deferred income	(207,787)	2,804,202		(153,312)
Cash generated/used (-) in operations	(426,998)	3,201,980		(145,953)
Interest paid	(9,033)	(1,158)		(1,063)
Interest received	10,054	7,852		4,558
Income taxes paid	(1,358)	(57)		(8)
Net cash flows generated/used (-) in operating activities	(427,336)	3,208,617		(142,466)
Purchase of property, plant and equipment	(42,522)	(22,385)		(10,392)
Purchase of and expenditure in intangible fixed assets	(48,793)	(23,300)		(3,325)
Proceeds from disposal of intangible assets	0	0		1
Proceeds from disposal of property, plant and equipment	49	0		0
Purchase of current financial investments	(4,574,206)	(4,787,284)		0
Interest received related to current financial investments	3,500	5,059		0
Sale of current financial investments	5,415,316	1,063,344		0
Acquisition of financial assets	(2,681)	(177)		(4,559)
Proceeds from sale of financial assets held at fair value through profit or loss	6,626	82		2,361
Net cash flows generated/used (-) in investing activities	757,288	(3,764,660)		(15,914)
Payment of lease liabilities and other debts	(6,247)	(5,091)		(5)
Proceeds from capital and share premium increases, gross amount	0	960,087		296,188
Issue cost paid, related to capital and share premium increases	0	(4,447)		(15,964)
Proceeds from capital and share premium increases from exercise of subscription rights/warrant	28,287	17,167		7,657
Net cash flows generated in financing activities	22,040	1,335,751		287,876
Increase in cash and cash equivalents	351,994	779,708		129,497
Cash and cash equivalents at beginning of year	1,861,616	1,290,796		1,151,211
Transfer to current financial investments	0	(198,922)		0
Increase in cash and cash equivalents	351,994	779,708		129,497
Effect of exchange rate differences on cash and cash equivalents	(70,539)	(9,966)		10,089
Cash and cash equivalents at end of year	2,143,071	1,861,616		1,290,796
Warrant A | Gilead
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from capital and share premium increases from exercise of subscription rights/warrant	€ 0	€ 368,035		€ 0

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued operations in 2020.

[2] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Consolidated Statement of Cash Flows, Current Financial Investments - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statement of Cash Flows
Current financial investments.	€ 3,026,278	€ 3,919,216	€ 0
Cash and cash equivalents	2,135,187	1,861,616	1,290,796
Cash and cash equivalents classified as assets held for sale	7,884	0	0
Current financial investments and cash and cash equivalents	€ 5,169,349	€ 5,780,832	€ 1,290,796

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General information

12 Months Ended

Dec. 31, 2020

General information.

General information

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. 

R&D

The research and development (“R&D”) operations are specialized in the discovery and development of small molecules. Our ambition is to become a leading global biotechnology company focused on the development and commercialization of novel medicines. Our strategy is to leverage our unique and proprietary target discovery platform, which facilitates our discovery and development of therapies with novel modes of action.

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) and Galapagos Biopharma Italy S.r.l. (Milan, Italy).

Our continuing operations had 1,304 employees on December 31, 2020 working in the operating facilities in Mechelen (the Belgian headquarters), the Netherlands, France, Switzerland, Germany, Italy, Spain, the United States, and United Kingdom.

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 fee-for-service segment). Fidelta d.o.o. had 185 employees on December 31, 2020 working in the operating facilities in Croatia. As net assets associated with our fee-for-service business will be recovered principally through a sale transaction rather than through continuing use, we classified these assets and the associated liabilities 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 (including the customary adjustments for cash and working capital).

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, 2020

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 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. 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).

During 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, Gilead and we agreed to amend our existing collaboration for the commercialization and development of filgotinib. Under the new arrangement, we will assume sole responsibility in Europe for filgotinib in RA and in all other potential future indications and will fully support the costs of certain of the development activities. In connection with the changes in responsibility for the commercialization and development of filgotinib in Europe, we received a payment of €35.0 million ($42.5 million) from Gilead in January 2021 and are entitled to additional payments of €125.0 million ($151.8 million), of which €75.0 million will be paid in 2021 and €50.0 million will be paid in 2022. In addition, we will no longer be eligible to receive future milestone payments relating to filgotinib in Europe, and we will pay royalties on net sales of Jyseleca (filgotinib) in Europe to Gilead as from January 1, 2024. 

This modification 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)) 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. 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, but declined to exercise its option in November 2020. 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. 

Revised filgotinib collaboration

Under the revised agreement, we will 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 will be subject to applicable local legal, regulatory and consultation requirements. The parties intend to transfer most activities by December 31, 2021 and complete the transition by December 31, 2022. Beginning on January 1, 2021, Galapagos will 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 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 (defined as “Group B activities”): 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. All commercial economics on filgotinib in Europe will transfer to Galapagos 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 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 will be split between a €110 million payment in 2021 (of which €35 million has been received in January 2021) and a €50 million payment in 2022 and is subject to certain adjustments for higher than budgeted development costs. In addition, Galapagos 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 (excluding the remaining approval milestones in Europe that became forfeited), 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. 

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 on 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 of the closing of the subscription agreement 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. Gilead did not exercise any of its warrants during 2020 and warrant A came to maturity in October 2020. Gilead’s ownership slightly diluted to 25.54% at December 31, 2020. 

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Significant accounting policies

12 Months Ended

Dec. 31, 2020

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, 2019

IFRS 16 Leases 

The above new applicable standard affected the consolidated financial statements as follows:

We adopted IFRS 16 on January 1, 2019, in accordance with the transitional provisions of IFRS 16, using the modified retrospective approach. Consequently, the cumulative effect of adopting IFRS 16 was recognized as an adjustment to the opening balance of retained earnings as at January 1, 2019, with no restatement of the comparative figures.

On adoption of IFRS 16, we recognized lease liabilities in relation to leases which had previously been classified as ‘operating leases’ under IAS 17. These liabilities were measured at the present value of the remaining lease payments and discounted using our incremental borrowing rate as of January 1, 2019. Our weighted average incremental borrowing rate applied to the lease liabilities on January 1, 2019 was 1.55%.

The differences between our total operating lease commitments as reported in our consolidated financial statements of December 31, 2018 and the total lease liabilities recognized in our statement of financial position as at January 1, 2019 are summarized below.

	(Euro, in thousands)
Operating lease commitments disclosed as at December 31, 2018	€	27,704
Less : discounting effect using the lessee's incremental borrowing rate at the date of initial application		(1,223)
Less : other		(569)
Lease liability recognized as at January 1, 2019		25,912
Of which are :
current lease liabilities		4,516
non-current lease liabilities	€	21,396

The change in accounting policy affected the statement of financial position as at January 1, 2019 as follows:

	January 1, 2019
	(Euro, in thousands)
Property, plant and equipment (right-of-use assets)	€	26,406
Other current assets (prepaid expenses)		(494)
Effect on total assets		25,912
Accumulated losses		416
Lease liabilities (current and non-current)		25,912
Deferred income		(416)
Effect on total equity and liabilities	€	25,912

We applied the following practical expedients, as permitted by IFRS 16, on transition date: 

▪     Reliance on the previous definition of a lease (as provided by IAS 17) for all contracts that existed on the date of initial application; 

▪     The use of a single discount rate to a portfolio of leases with reasonably similar characteristics; 

▪     Reliance on previous assessments on whether leases are onerous instead of performing an impairment review;

▪     The accounting for operating leases with a remaining lease term of less than 12 months as at January 1, 2019 as short-term leases; 

▪     No recognition of right-of-use assets and liabilities for leases of low value assets.

We refer to our updated accounting policy on leases as a result of the adoption of IFRS 16.

Other new standards and interpretations applicable for the annual period beginning on January 1, 2019 did not have any impact on our consolidated financial statements.

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 any material impact on our consolidated financial statements. 

STANDARDS AND INTERPRETATIONS PUBLISHED, BUT NOT YET APPLICABLE FOR THE ANNUAL PERIOD BEGINNING ON JANUARY 1, 2020

A number of new standards are effective for annual periods beginning on or after January 1, 2021 with earlier adoption permitted. However we have not early adopted new or amended standards in preparing our consolidated financial statements. Of the standards that are not yet effective, we expect no standard to have a material impact on our financial statements in the period of initial application.

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

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.

Licenses, 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.

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.

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 over 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

As explained in the beginning of this note, we adopted IFRS 16 on January 1, 2019, resulting in a change in our accounting policy.

Accounting policy as from January 1, 2019

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 is 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 such 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 statement of operations over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

Accounting policy until January 1, 2019

Until the end of 2018, leases of property, plant and equipment were classified as either finance or operating leases.

Leases were classified as finance leases whenever the terms of the lease substantially transferred all the risks and rewards of ownership to the lessee. All other leases were classified as operating leases.

Assets held under finance leases were recognized as our assets at their fair value or, if lower, at the present value of the minimum lease payments, each determined at the inception of the lease. These assets held under finance leases were depreciated over their useful lives on the same bases as owned assets or, where shorter, over the term of the related lease agreement. The corresponding liability to the lessor was included in the balance sheet as a finance lease obligation. The payments were divided proportionally between the financial costs and a diminution of the outstanding balance of the obligation, so that the periodic interest rate on the outstanding balance of the obligation would be constant. Interest was recognized in the statement of operations, unless it was directly attributable to the corresponding asset, in which case it was capitalized.

Rents paid on operating leases were charged to income on a straight-line basis over the term of the relevant lease. Benefits received and receivable as an incentive to enter into an operating lease were also spread on a straight-line basis over the lease term.

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 don’t have financial debts at December 31, 2020.

(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 our 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 short-term deposits, 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.

Cash

Cash are financial assets measured at amortized cost and comprise cash balances and short-term deposits with maturities of three months or less from the acquisition date that are subject to an insignificant risk of changes in their value.

Cash equivalents measured at amortized costs

Cash equivalents measured at amortized cost comprise short-term deposits that are readily convertible to cash and 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. We use monthly transaction rates based on the closing exchange rates of the foreign currencies on the last business day of the month preceding the date of the 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 milestones, license fees, non-refundable upfront fees and royalties received in connection with collaboration and license agreements. We also generate 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:

(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 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.

We refer to note 6 for detailed information per agreement and to our Critical accounting judgments and key sources of estimation uncertainty for more information.

OTHER 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 Scheme 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, supervisory board members 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 rights 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 RSUs (Restricted Stock Units)

Management board members and other employees were granted RSUs in 2019 and 2020. 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 RSUs are measured based on the volume weighted 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 RSUs in cash.

PROVISIONS

Provisions are recognized on the balance sheet 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

The group had two reportable segments, R&D and fee-for-service business. Due to the disposal of Fidelta d.o.o. (our fee-for-service segment), we have reported this segment as discontinued operations at December 31, 2020. Galapagos is therefore operating as a single operating segment.

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. The prior-year consolidated balance sheet is not restated.

On November 23, 2020, we signed a share purchase agreement in relation to the sale of our fee-for-service business. As the net assets associated with our fee-for-service business will be recovered principally through a sale transaction rather than through continuing use, we classified these assets and the associated liabilities as held for sale in our financial statements for the year ended December 31, 2020.

On January 4, 2021, we concluded the sale of our fee-for-service business to Selvita S.A. 

Where applicable and in accordance with IFRS 5, we have restated the 2018 and 2019 comparatives in the consolidated statement of operations and in the notes to consider the impact of classifying the Fidelta business as discontinued operations in 2020.

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Critical accounting judgments and key sources of estimation uncertainty

12 Months Ended

Dec. 31, 2020

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 uncertainty 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

• Although formal executive contracts are still being finalized with Gilead, we assessed that the impact of the modification must already be accounted for in our consolidated financial statements for the year ended December 31, 2020 given the legally binding and enforceable character of the term sheet that was signed between us and Gilead on December 15, 2020 as a consequence of both parties’ decision to amend our existing agreement for the commercialization and development of filgotinib.

•
Despite our obligation to pay future sales-based royalties to Gilead and a change in the governance structure for the development activities, we concluded that all activities are still beneficial for the further development of filgotinib, for which Gilead still owns the ex-Europe rights. The contract modification has 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 subsequently concluded that there continues to be only one performance obligation with respect to filgotinib after the contract modification.

Identification of the performance obligation

• The modification 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. 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 that all ongoing and planned clinical trials (including long term extension trials) would be completed until their final stage.

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, 2020. 

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. 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. Our total deferred income balance related to this filgotinib performance obligation amounts to €818.7 million at December 31, 2020.

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Segment information

12 Months Ended

Dec. 31, 2020

Segment information

Segment information

5. Segment information

Operational segmentation

The group had two reportable segments, R&D and fee-for-service business. Due to the disposal of Fidelta d.o.o. (our fee-for-service segment), we reported this segment as discontinued operations. Galapagos is therefore operating as a single operating segment.

GEOGRAPHICAL INFORMATION

In 2018, 2019 and 2020, our  continuing operations were mainly located in Belgium, France and the Netherlands.

Following table summarizes the revenues by destination of customer:

	Year ended December 31,
	2020		2019		2018
	(Euro, in thousands)
United States of  America	€	472,445	€	793,873	€	116,680
Europe		5,607		41,028		161,986
Total	€	478,053	€	834,901	€	278,666

Following table summarizes the revenues by major customers:

		Year ended December 31,
		2020				2019			2018
Spilt up of revenues by major customers		(Euro, in thousands)	%			(Euro, in thousands)	%		(Euro, in thousands)	%
Gilead:
United States of  America (1)	€	472,445	99%		€	793,873	95%	€	116,640	42%
Europe (1)		1,460	0%			(4,570)	-1%		7,793	3%
AbbVie:
Europe		(52)	0%			26,356	3%		89,936	32%
Novartis:
Europe		4,125	1%			19,177	2%		55,218	20%
Les Laboratoires Servier:
Europe		—	0%			—	0%		9,000	3%
Total revenues from major customers	€	477,978	100%	€		834,836	100%		278,587	100%

(1) Following the contract amendment with Gilead in 2019, 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, 2020, we held €171 million (€91 million in 2019; €27 million in 2018) of property, plant and equipment and intangible assets distributed as follows: 

	December 31,
	2020		2019 (*)		2018 (*)
		(Euro, in thousands)
Belgium	€	113,524	€	57,007	€	13,134
France		18,398		18,102		5,413
The Netherlands		28,210		7,951		3,947
Croatia		—		6,182		3,661
Switzerland		7,668		1,057		519
Spain		2,755		—		—
Other		388		681		95
Total	€	170,943	€	90,979	€	26,769

(*) 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 years ended December 31, 2019 and December 31, 2018. 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 and other income

12 Months Ended

Dec. 31, 2020

Total revenues and other income

Total revenues and other income

6. Total revenues and other income

 REVENUES

The following table summarizes the revenues for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Recognition of non-refundable upfront payments and license fees	€	411,417	€	812,058	€	196,486
Milestone payments		46,261		2,878		73,394
Reimbursement income		4,073		19,900		8,722
Other revenues		70		66		63
Commercial revenues		16,232		—		—
Total revenues	€	478,053	€	834,901	€	278,666

The following table summarizes details of revenues for the years ended December 31, 2020 and 2019 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, other revenues and commercial revenues.

	Over time	Point in time		2020		2019
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	411,417	€	812,058
Gilead collaboration agreement for ziritaxestat				-		666,968
Gilead collaboration agreement for filgotinib(1)				181,816		62,602
Gilead collaboration agreement for drug discovery platform				229,601		80,918
AbbVie collaboration agreement for CF				-		1,569
Milestone payments				46,261		2,878
Gilead collaboration agreement for filgotinib (1)				46,261		(21,187)
AbbVie collaboration agreement for CF				-		24,065
Reimbursement income				4,073		19,900
Novartis collaboration agreement for MOR106				4,125		19,177
AbbVie collaboration agreement for CF				(52)		723
Other revenues				70		66
Other revenues				70		66
Commercial revenues				16,232		-
Sale of goods				2
Royalties				16,227
Other commercial revenues				2
Total revenues			€	478,053	€	834,901
(1) Following the contract amendment with Gilead in 2019, the revenue recognized for filgotinib for the year ended December 31, 2019, included a negative catch-up effect at 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.

							(Euro, in thousands)
Allocation of transaction price		Filgotinib agreement 2015		Milestones achieved during 2015-2019		Option, License and Collaboration agreement (July 14, 2019)		December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020
Upfront consideration	€	275,558			€	3,569,815	€	3,845,373			€	160,000	€	4,005,373
Milestones achieved			€	104,171				104,171	€	90,192				194,363
Royalties								—		16,227				16,227
Impact initial valuation of share subscription		39,003				85,601		124,604						124,604
		314,561		104,171		3,655,416		4,074,148		106,419		160,000		4,340,567
Less :
Warrants issuance liabilities
Warrant A								(43,311)						(43,311)
Initial warrant B								(2,545)						(2,545)
Subsequent warrant B								(16,184)		8,325				(7,859)
		314,561		104,171		3,655,416		4,012,108		114,744		160,000		4,286,852
Allocation to performance obligations
Ziritaxestat						666,967		666,967						666,967
Filgotinib (1)	€	314,561	€	104,171		641,663		1,060,395		106,419		160,000		1,326,814
Drug discovery platform (10 years)					€	2,284,747	€	2,284,747		8,325				2,293,072

(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, considering the effects of the amendment of December 15, 2020.

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 will be 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). 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 24 for more information). The value initially allocated to the subsequent warrant B reflects the fair value of the underlying liability on December 31, 2019. On December 31, 2020 the value of the subsequent warrant B decreased to €7.9 million, driven by the decrease of our share price in 2020, partly compensated by an increase in the implied volatility.

On December 15, 2020 we and Gilead signed a term sheet modifying our existing collaboration for filgotinib. As a result of this modification an additional consideration of €160.0 million was allocated to the filgonitib performance obligation.

A summary of all current contracts with customers is given below:

Collaboration 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, clinical and 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 the 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 the new arrangement, we will assume sole responsibility in Europe for filgotinib in RA and in all future indications.

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 modification of December 15, 2020 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. As a consequence, the increase in the transaction price of €160.0 million as a result of this modification has been allocated in its entirety to the filgotinib performance obligation.
Financing component
	·	There are two performance obligations determined in the agreement with Gilead for which the period between the transfer of the promised goods/services to Gilead and the payment of the underlying consideration by Gilead exceeds one year, being the performance obligation relating to the drug discovery platform and the performance obligation resulting from the filgotinib amendment. Although the consideration paid for the drug discovery platform will be recognized over a period of 10 years as from receipt of the funds, management concluded not to consider any financing component for this performance obligation as the granting of an exclusive access and option rights on day one is the predominant value of the drug discovery platform performance obligation. As a consequence, management has considered it is only 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
	·	The transaction price allocated to this performance obligation reflects our assessment of the stand-alone selling price of this performance obligation and was valued based on a discounted cash flow approach including, amongst others, assumptions on the estimated market share and size, peak sales and probability of success.
	·	This performance obligation was completely satisfied as at December 31, 2019. Following the very recent discontinuation of the ziritaxestat trials, we don’t 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 standalone selling price of the filgotinib amendment was determined through the cost-plus-margin approach. Management estimated that an appropriate margin is indirectly embedded in the increased involvement in the development and global strategy of filgotinib, our sole responsibility for filgotinib in Europe and the accompanying increase in the risk.
	·	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 we reported €16.2 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 modification from 2020 leading to a small decrease in the percentage of completion. Nevertheless, we recognized higher revenues in financial year 2020 as compared to financial year 2019 for  filgotinib because the total transaction price increased due to the contract modification (€160.0 million) and the milestone payments obtained in 2020 for the regulatory approval of filgotinib for RA in Europe and Japan for a total amount of $105 million (€90.2 million).

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 the 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, 2020.

Collaboration with Servier

In 2010 we signed a license and collaboration agreement with Servier in the field of osteoarthritis. Any increase in the transaction price from future potential development and regulatory milestones, sales based milestones and royalties, will be allocated to the license and will be fully recognized as revenue at a point in time when achieved, as our performance obligation towards Servier has been fully satisfied.

The contract signed with Servier on May 8, 2018 took over the terms of the previous agreement but additionally included the framework of a joint Phase 2 clinical trial program in which both parties collaborate, share costs and mutually exchange services. We concluded that this contract modification was not in the scope of IFRS 15 because there is a mutual exchange of services between Servier and Galapagos, Servier is not assessed as a customer but as a collaboration partner. Any cost reimbursement from our collaboration partner is not recognized as revenue but accounted for as a decrease of the related expenses.

In December 2020, Servier decided to terminate the agreement. Such termination became effective in March 2021. As a result of such termination, rights to the GLPG1972 were returned to Galapagos, 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.

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 was considered fully satisfied at December 31, 2019.

For the years ended December 31, 2019 and 2018

The following table summarizes details of revenues for the years ended December 31, 2019 and 2018 by collaboration and by category of revenue: upfront payments and license fees, milestone payments, reimbursement income, and other revenues.  

	Over time	Point in time		2019		2018
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	812,058	€	196,486
Gilead collaboration agreement for ziritaxestat				666,968		-
Gilead collaboration agreement for filgotinib(1)				62,602		96,809
Gilead collaboration agreement for drug discovery platform				80,918		-
AbbVie collaboration agreement for CF				1,569		52,176
Novartis collaboration agreement for MOR106				-		47,500
Milestone payments				2,878		73,394
Gilead collaboration agreement for filgotinib(1)				(21,187)		27,623
AbbVie collaboration agreement for CF				24,065		36,771
Servier collaboration agreement for osteoarthritis				-		9,000
Reimbursement income				19,900		8,722
Novartis collaboration agreement for MOR106				19,177		7,718
AbbVie collaboration agreement for CF				723		989
Other reimbursement income				-		16
Other revenues				66		63
Other revenues				66		63
Total revenues			€	834,901	€	278,666

(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.

OTHER INCOME

The following table summarizes other income for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Grant income	€	5,452	€	6,549	€	1,609
R&D incentives		45,951		43,923		26,912
Other income		804		425		479
Total other income	€	52,207	€	50,896	€	29,000

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Operating costs

12 Months Ended

Dec. 31, 2020

Expenses by nature [abstract]

Operating costs

7.       Operating costs

Operating result has been calculated after charging (-) / crediting:

RESEARCH AND DEVELOPMENT EXPENDITURE

The following table summarizes research and development expenditure for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(161,509)	€	(118,875)	€	(75,819)
Subcontracting		(301,841)		(255,725)		(203,406)
Disposables and lab fees and premises costs		(22,349)		(19,573)		(20,967)
Depreciation		(11,707)		(9,330)		(4,846)
Professional fees		(12,692)		(1,834)		(262)
Other operating expenses		(13,570)		(14,753)		(10,922)
Total R&D expenses	€	(523,667)	€	(420,090)	€	(316,222)

All research and development expenditures are tracked against detailed budgets and allocated by individual project. The table below summarizes our research and development expenditure for the years ended December 31, 2020, 2019 and 2018, broken down by program.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Filgotinib program	€	(126,879)	€	(100,032)	€	(66,138)
Ziritaxestat program		(55,902)		(75,951)		(72,718)
OA program on GLPG1972		(22,966)		(19,958)		(15,751)
Toledo program		(87,107)		(47,204)		(20,967)
CF program		(69)		(3,897)		(30,137)
AtD program on MOR106		(7,618)		(24,051)		(14,999)
Other programs		(223,126)		(148,997)		(95,512)
Total R&D expenses	€	(523,667)	€	(420,090)	€	(316,222)

SALES AND MARKETING EXPENSES

The following table summarizes the sales and marketing expenses for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(31,727)	€	(7,558)	€	(2,282)
Depreciation		(140)		(61)		—
External outsourcing costs		(27,174)		(15,721)		(1,284)
Professional fees		(3,420)		(459)		—
Other operating expenses		(4,007)		(777)		(580)
Total sales and marketing expenses	€	(66,468)	€	(24,577)	€	(4,146)

GENERAL AND ADMINISTRATIVE EXPENSES

The following table summarizes the general and administrative expenses for the years ended December 31, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(70,110)	€	(51,204)	€	(24,740)
Depreciation		(5,147)		(1,421)		(449)
Legal and professional fees		(25,592)		(11,568)		(4,026)
Other operating expenses		(17,908)		(8,190)		(5,162)
Total general and administrative expenses	€	(118,757)	€	(72,382)	€	(34,377)

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Staff costs

12 Months Ended

Dec. 31, 2020

Staff costs

Staff costs

8. Staff costs

The following table illustrates the personnel costs for the years 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Wages and salaries	€	(139,681)	€	(113,660)	€	(57,237)
Social security costs		(26,471)		(14,566)		(10,290)
Pension costs		(7,337)		(4,715)		(2,994)
Costs related to subscription right plans		(79,959)		(38,297)		(26,757)
Other personnel costs		(9,897)		(6,399)		(5,564)
Total personnel costs	€	(263,345)	€	(177,636)	€	(102,842)

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Fair value re-measurement of share subscription agreement and warrants granted to Gilead

12 Months Ended

Dec. 31, 2020

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, 2020 and 2019, can be split up as follows:

		Year ended December 31,
	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		3,034		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	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	2020		2019
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(6,198)
Fair value of financial liability at warrant approval date			€	(2,545)
Change in fair value recorded in profit or loss		3,034		(3,653)
Fair value on December 31,	€	(3,164)	€	(6,198)

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Other financial income / expenses

12 Months Ended

Dec. 31, 2020

Other financial income / 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, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Other financial income:
Interest income	€	10,030	€	14,305	€	5,217
Effect of discounting long term R&D incentives receivables		93		93		199
Currency exchange gain		4,697		775		10,978
Fair value gain on financial assets held at fair value through profit or loss		2,397		5,355		1,203
Fair value gain on current financial investments		—		611		—
Gain upon sale of financial assets held at fair value through profit or loss		—		2		667
Other finance income		1,450		248		—
Total other financial income		18,667		21,389		18,264
Other financial expenses:
Interest expenses		(9,389)		(1,268)		(780)
Effect of discounting long term deferred income		(16,278)		(6,900)		—
Currency exchange loss		(110,416)		(47,720)		(1,057)
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		(773)		(380)		(764)
Total other financial expense		(152,844)		(59,968)		(2,602)
Total net other financial expense (-)/ income	€	(134,177)	€	(38,579)	€	15,663

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Income Taxes

12 Months Ended

Dec. 31, 2020

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, 2020, 2019 and 2018.

	Year ended December 31,
	2020		2019		2018
	(Euro, in thousands)
Current tax	€	(1,069)	€	(1,372)	€	(584)
Deferred tax		(157)		1,537		(238)
Income taxes	€	(1,226)	€	165	€	(822)

TAX LIABILITIES

The below table illustrates the tax liabilities related captions in the consolidated statement of financial position as at December 31, 2020, 2019 and 2018.

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Current tax payable	€	1,248	€	2,037	€	1,175
Total tax liabilities	€	1,248	€	2,037	€	1,175

On December 31, 2020, 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% (2019: 29.58%, 2018: 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,
	2020		2019		2018
	(Euro, in thousands)
Income/loss (-) before tax	€	(309,775)	€	148,525	€	(31,417)
Income tax debit/credit (-), calculated using the Belgian statutory tax rate on the accounting income/loss (-) before tax (theoretical)		(77,444)		43,934		(9,293)
Tax expenses/income (-) in statement of operations (effective)		1,226		(165)		822
Difference in tax expense/income to explain	€	78,670	€	(44,097)	€	10,116
Effect of tax rates in other jurisdictions	€	184	€	960	€	599
Effect of non-taxable revenues		(10,196)		(13,079)		(11,547)
Effect of share based payment expenses without tax impact		19,990		10,318		7,530
Effect of expenses/income (-) not subject to tax		(639)		53,394		175
Effect of non tax-deductible expenses		1,053		724		914
Effect of recognition of previously non recognized deferred tax assets		(475)		(2,286)		(532)
Effect of tax losses (utilized) reversed		(150)		(136)		(150)
Effect of under or over provision in prior periods		(25)		30		—
Effect of non-recognition of deferred tax assets		69,141		47,413		13,127
Effect of derecognition of previously recognized deferred tax assets		157		—		—
Effect of use of investment deduction		(370)		—		—
Effect of use of IID		—		(141,435)		—
Total explanations	€	78,670	€	(44,097)	€	10,116

Non-taxable revenues for the years ended December 31, 2020, 2019 and 2018 related to non-taxable subsidies and tax credits. Expenses/income (-) not subject to tax for the years ended 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 in 2019 (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, 2020

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 subscription rights, 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,
	2020		2019		2018
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(305,436)	€	149,845	€	(29,259)
Number of shares (thousands)
Weighted average number of shares for the purpose of basic income/loss (-) per share		65,075		57,614		52,113
Basic income/loss (-) per share (Euros)	€	(4.69)	€	2.60	€	(0.56)
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(305,436)	€	149,845	€	(29,259)
Number of shares (thousands)
Weighted average number of shares for the purpose of diluted income/loss (-) per share		65,075		57,614		52,113
Number of dilutive potential ordinary shares		—		2,498		—
Diluted income/loss (-) per share (Euros)	€	(4.69)	€	2.49	€	(0.56)

As our operations reported a net loss in 2020 and 2018, the outstanding subscription rights (specified in note 29) have an anti-dilutive effect rather than a dilutive effect. Consequently, basic and diluted loss per share were the same for 2020 and 2018.

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Intangible assets

12 Months Ended

Dec. 31, 2020

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 , 2018		€	7,496	€	8,586	€	—	€	16,082
Additions			1,561		1,763				3,325
Sales and disposals			(20)		(7,630)				(7,650)
Translation differences			74						74
On December 31, 2018			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
Amortization and impairment
On January 1 , 2018		€	6,514	€	7,070	€	—	€	13,587
Amortization			681		426				1,107
Impairment					1,083				1,083
Sales and disposals			(20)		(7,630)				(7,650)
Translation differences			74						74
On December 31, 2018			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
Carrying amount
On December 31, 2018		€	1,862	€	1,771	€	—	€	3,632
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, 2020, 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, 2020

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, 2018	€	4,736	€	33,060	€	3,209	€	1,189	€	42,195
Additions		275		4,674		1,039		4,404		10,392
Sales and disposals				(486)		(826)				(1,311)
Reclassifications				753		13		(766)		—
Translation differences				29		16				46
On December 31, 2018		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
Depreciations and impairment
On January 1 , 2018	€	2,342	€	20,495	€	2,407	€	258	€	25,502
Depreciation		344		3,377		236		17		3,974
Sales and disposals				(485)		(826)				(1,310)
Translation differences				16		2				18
On December 31, 2018		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
Carrying amount
On December 31, 2018	€	2,325	€	14,628	€	1,632	€	4,552	€	23,137
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

RIGHT-OF-USE	Land & building		Installation & machinery		Furniture, fixtures & vehicles		Total
	(Euro, in thousands)
Acquisition value
On December 31, 2018	€	—	€	—	€	—	€	—
Change in accounting policy ( modified retrospective application IFRS 16)		24,056		219		2,130		26,406
Restated balance 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
Depreciations and impairment
On December 31, 2018	€	—	€	—	€	—	€	—
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
Carrying amount
On December 31, 2019	€	22,694	€	212	€	2,440	€	25,345
On December 31, 2020	€	31,027	€	270	€	3,817	€	35,113

	December 31,
Carrying amount		2020		2019		2018
Property, plant and equipment fully owned	€	68,264	€	40,707	€	23,137
Right-of-use		35,113		25,345		—
Total property, plant and equipment	€	103,378	€	66,052	€	23,137

 Due to adoption of IFRS 16 on January 1, 2019 we recognized an opening balance of right-of-use assets of €26.4 million on the balance sheet.

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, 2020

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,
	2020		2019		2018
	(Euro, in thousands)
Non-current restricted cash	€	1,482	€	1,418	€	1,276
Financial assets held at fair value through profit or loss		8,951		11,275		6,000
Other non-current assets		910		1,399		643
Total other non-current assets	€	11,343	€	14,091	€	7,919

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.

Restricted cash on December 31, 2019 was composed of bank guarantees on real estate lease obligations in Belgium and in the Netherlands for €0.9 million and €0.5 million, respectively. 

Financial assets held at fair value through profit or loss consisted of equity instruments of both listed and non-listed companies.

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 is 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 of the non-listed company has been determined mainly by reference to the initial transaction price (classified as level 3 in the fair value hierarchy).

Fair value changes on financial assets with fair value through profit or loss are recognized 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, 2020, 2019, and 2018.

		December 31,
	2020		2019		2018
	(Euro, in thousands)
Costs at January 1,	€	4,736	€	4,818	€	2,373
Acquisitions of the year		1,994		—		4,736
Disposals of the year		(2,820)		(82)		(2,291)
Costs at December 31,		3,910		4,736		4,818
Fair value adjustment at January 1,		6,539		1,182		(619)
Cancellation of fair value adjustment following disposal		(3,894)		2		598
Fair value adjustment of the year		2,397		5,355		1,203
Fair value adjustment at December 31,		5,042		6,539		1,182
Net book value at  December 31,	€	8,951	€	11,275	€	6,000

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Research and Development incentives receivables

12 Months Ended

Dec. 31, 2020

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 on December 31, 2020, 2019, and 2018:

		December 31,
	2020		2019		2018
		(Euro, in thousands)
Non-current R&D incentives receivables	€	111,624	€	93,407	€	73,443
Current R&D incentives receivables		24,104		21,949		11,203
Total R&D incentives receivables	€	135,728	€	115,356	€	84,646

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 on December 31, 2020.

Non-current R&D incentives receivables

	December 31, 2020
	Maturity date
	2022		2023		2024		2025		2026-2030		Total
	(Euro, in thousands)
French non-current R&D incentives receivables - discounted value	€	10,223		11,911		11,722					€	33,856
Belgian non-current R&D incentives receivables - discounted value		6,647		8,429		11,078		13,716		37,898		77,768
Total non-current R&D incentives receivables - discounted value	€	16,870	€	20,340		22,800		13,716		37,898	€	111,624

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Trade and other receivables and other current assets

12 Months Ended

Dec. 31, 2020

Trade and other receivables and other current assets

Trade and other receivables and other current assets

17. Trade and other receivables and other current assets

		December 31,
	2020		2019		2018
	(Euro, in thousands)
Non-current trade receivables	€	50,000	€	—	€	—
Trade receivables		134,632		39,603		9,206
Prepayments		219		292		142
Other receivables		13,568		14,114		9,261
Trade and other receivables		148,418		54,009		18,609
Inventories		355		255		276
Accrued income		1,096		4,443		3,863
Deferred charges		10,502		4,439		4,104
Other current assets		11,953		9,138		8,244
Total trade and other receivables & other current assets	€	210,371	€	63,147	€	26,852

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, 2020, we did not have any provision for expected credit losses.

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Current financial investments

12 Months Ended

Dec. 31, 2020

Current financial investments

Current financial investments

18. Current financial investments

On December 31, 2020, our current financial investments amounted to €3,026.3 million compared to €3,919.2 million at December 31, 2019 and nil at December 31, 2018. On December 31, 2019 these current financial investments included a short-term bond fund and money market funds. On December 31, 2020 these current financial investments included treasury bills (€1,454.4 million) and money market funds (€1,571.9 million). Our portfolio of treasury bills contains only AAA rated paper, issued by Germany and The Netherlands. 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, 2020, our current financial investments included $524.6 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.

We refer to note 32 for more information on these current financial investments.

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Cash and cash equivalents

12 Months Ended

Dec. 31, 2020

Cash and cash equivalents.

Cash and cash equivalents

19. Cash and cash equivalents

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Cash at banks	€	1,239,993	€	907,939	€	358,016
Term deposits		895,194		953,677		733,537
Money market funds		—		—		199,243
Cash and cash equivalents from continuing operations		2,135,187		1,861,616		1,290,796
Cash and cash equivalents included in assets classified as held for sale		7,884		—		—
Total cash and cash equivalents	€	2,143,071	€	1,861,616	€	1,290,796

Cash and cash equivalents may comprise cash at banks, short term bank deposits and money market funds that are readily convertible to cash and are subject to an insignificant risk of changes in value. Our cash management strategy monitors and optimizes our liquidity position. Our cash management strategy may allow short term deposits with an original maturity exceeding three months while monitoring all liquidity aspects. Cash and cash equivalents comprised €895.2 million of term deposits which all had an original maturity longer than three months. 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, 2020 our cash and cash equivalents included $894.3 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.

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Share capital

12 Months Ended

Dec. 31, 2020

Share capital

Share capital

20. Share capital

	2020		2019		2018
	(Euro, in thousands)
On January 1	€	287,282	€	236,540	€	233,414
Share capital increase		4,031		55,189		19,090
Costs of capital increase		—		(4,447)		(15,964)
Share capital on December 31,	€	291,312	€	287,282	€	236,540
Aggregate share capital	€	353,819	€	349,789	€	294,600
Costs of capital increase (accumulated)		(62,507)		(62,507)		(58,060)
Share capital on December 31,	€	291,312	€	287,282	€	236,540

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, 2018 and December 31, 2020 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, 2018						46,256	€	250,187
March 20, 2018				1,613	298
June 20, 2018				556	103
September 17, 2018		16,021			2,961
October 3, 2018				733	135
November 23, 2018				167	31
December 31, 2018						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 18, 2020				467	86
December 4, 2020				384	71
December 31, 2020						65,412	€	353,819

On December 31, 2020, Galapagos NV’s share capital amounted to €353,819 thousand, represented by 65,411,767 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 2018, 2019, and 2020.

(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, 2018		50,936,778	€	233,414	€	993,025	€	1,226,439
March 20, 2018 : exercise of subscription rights		298,184		1,613		2,311		3,924	13.16	83.72
June 20, 2018 : exercise of subscription rights		102,801		556		781		1,337	13.01	85.00
September 17, 2018 : U.S. public offering
ADSs (fully paid)		2,961,373		16,021		280,167		296,188
Underwriter discounts and offering expenses (paid)				(15,964)				(15,964)
Total U.S. public offering		2,961,373		57		280,167		280,224		99.68
October 3, 2018 : exercise of subscription rights		135,485		733		1,281		2,014	14.86	94.32
November 23, 2018 : exercise of subscription rights		30,800		167		215		382	12.40	88.90
On December 31, 2018		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

Other information

	Ordinary shares		Total
Accounting 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 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 7:87 of the 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, 2020, an amount of €55,264,659.69 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, 2020

Deferred tax

Deferred tax

21. Deferred tax

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Recognized deferred tax assets and liabilities
Assets	€	4,475	€	4,205	€	2,514
Liabilities	€	—	€	—	€	—
Deferred tax assets unrecognized	€	365,639	€	289,833	€	223,377
Deferred taxes in the consolidated statement of operations	€	(157)	€	1,537	€	(238)
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)		581		1,537		528
Deferred tax expenses relating to temporary differences		(44)		—		—
Deferred tax expenses relating to use or derecognition of previously recognized deferred tax assets		(695)		—		(766)

The total amount of tax attributes and deductible temporary differences at December 31, 2020 amounted to €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, 2020 amounting to €1,229.3 million (2019: €953.3 million; 2018: €688.7 million), and (ii) innovation income deduction, dividend received deduction and investment deduction carried forward at December 31, 2020 amounting to €256.5 million (2019: €225.7 million; 2018: €196.4 million).

The available statutory tax losses carried forward that can be offset against future statutory taxable profits amounted to €478.6 million on December 31, 2020. These statutory tax losses can be compensated with future statutory profits for an indefinite period except for an amount of €2.7 million in the United States and the Netherlands with expiry date between 2026 and 2034. On December 31, 2020, the available tax losses carried forward in Galapagos NV (Belgium) amounted to €416.6 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, 2020, a carried forward tax deduction of €247.2 million (2019: €224.7 million; 2018: €195.4 million) that can also be offset against future statutory taxable results. In addition, Galapagos NV (Belgium) also has available investment deduction carried forward of €1 million (2019 and 2018: €1 million) and a dividend received deduction carried forward of €8.4 million (2019 and 2018: nil) that can be offset against future taxable profits. There is no limit in time for the innovation income deduction, the dividend received deduction 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 set up as at December 31, 2020, except for four subsidiaries operating on a cost plus basis for which deferred tax assets were recognized for €4.5 million (2019: €4.2 million and 2018: €2.5 million).

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Lease liabilities

12 Months Ended

Dec. 31, 2020

Lease liabilities.

Lease liabilities

22. Lease liabilities

On adoption of IFRS 16 on January 1, 2019, we recognized lease liabilities in relation to leases, which had previously been classified as ‘operating leases’ under IAS 17.

	December 31,						December 31,
	2020		2019		2018		2020		2019		2018
		(Euro, in thousands)						(Euro, in thousands)
		Lease payments						Present value of lease payments
Lease liabilities
Within one year	€	6,772	€	6,189			€	6,401	€	5,826
In the second to fifth years inclusive		20,399		16,320				19,833		15,783
After five years		3,214		3,844				3,201		3,775
	€	30,385	€	26,353	€	-	€	29,436	€	25,384	€	-
Less future finance charges		949		969
Present value of lease liabilities	€	29,436	€	25,384	€	-
Less amount due for settlement within 12 months								6,401		5,826
Amount due for settlement after 12 months							€	23,035	€	19,558	€	-

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Trade and other liabilities

12 Months Ended

Dec. 31, 2020

Trade and other liabilities

Trade and other liabilities

23. Trade and other liabilities

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Trade and other liabilities	€	171,316	€	142,510	€	68,038
Other non-current liabilities		8,096		6,989		1,578
Accrued charges		1,070		923		890
Total trade and other liabilities	€	180,482	€	150,422	€	70,506

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Deferred income

12 Months Ended

Dec. 31, 2020

Deferred income.

Deferred income

24. 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		Servier collaboration agreement for osteoarthritis		Deferred income related to contracts in our fee-for-service segment		Other deferred income (grants)
		(Euro, in thousands)
On December 31, 2017	€	219,892	€	213,981	€	—	€	—	€	—	€	5,362	€	248	€	300
Reclassified from equity following adoption of IFRS 15		83,220		43,832						44,749		(5,362)
On Januari 1, 2018		303,112		257,814		—		—		44,749		—		248		300
Upfront received		38,874								38,874
Milestones received		20,965		12,417						8,548
Revenue recognition of upfront		(148,985)		(96,809)						(52,176)
Revenue recognition of milestones		(64,394)		(27,623)						(36,771)
Other movements		229												222		7
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 payments		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

(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, 2020 and on December 31, 2019 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 significant financing component reflecting the time value of money on the estimated recognition period.

The outstanding deferred income balance on December 31, 2020 included €818.7 million related to the collaboration agreement with Gilead for filgotinib (€604.9 million classified as long term deferred income), and €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 related to deferred grants.

The outstanding deferred income balance on December 31, 2019 included €780.3 million related to the collaboration agreement with Gilead for filgotinib (€594.7 million classified as long term deferred income), €2,220.0 million, including €16.2 million warrant issuance liability related to subsequent warrant B, related to the collaboration agreement with Gilead for the drug discovery platform (€1,991.6 million classified as long term deferred income) and €0.4 million related to our fee-for-service segment. 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, 2020

Disclosure of analysis of single amount of discontinued operations [abstract]

Discontinued operations

25. 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 fee-for-service segment). As net assets associated with our fee-for-service business 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.

The transaction was completed on January 4, 2021 for a total consideration of €37.1 million (including the customary adjustments for cash and working capital). Fidelta will continue performing drug discovery services for us for the next five years for which we have purchase commitments for an aggregate amount of €27.0 million.

Held for sale assets are stated at their carrying amount, which is lower than the fair value less costs to sell.

As we expect to continue to purchase services from Fidelta d.o.o. after the closing of the transaction, we eliminated the intragroup revenue and cost in discontinued operations.

(i)                                Financial performance

	Year ended December 31,
	2020		2019			2018
		(Euro, in thousands, except share and per share data)
Revenues	€	16,140	€	10,084	€	10,170
Other income				8		9
Total revenues and other income		16,140		10,092		10,179
Research and development expenses		(7,685)		(7,229)		(6,653)
General and administrative expenses		(2,000)		(1,319)		(1,253)
Total operating expenses		(9,685)		(8,548)		(7,906)
Operating income		6,455		1,544		2,273
Other financial income		179		93		71
Other financial expenses		(176)		(102)		(135)
Income before tax		6,458		1,535		2,209
Income taxes		(893)		(379)		773
Net income	€	5,565	€	1,156	€	2,981
Basic income per share from discontinued operations	€	0.09	€	0.02	€	0.06
Diluted income per share from discontinued operations	€	0.08	€	0.02	€	0.06
Weighted average number of shares (in thousands of shares)		65,075		57,614		52,113
Weighted average number of shares - Diluted (in thousands of shares)		67,572		60,112		53,922

(ii)                              Assets and liabilities

The following assets and liabilities were classified as held for sale in relation to the discontinued operations:

	2020
		(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 assets		863
Total assets classified as held for sale		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		3,649
Current lease liabilities		727
Income tax payable		356
Liabilities associated with assets classified as held for sale		8,917
Net assets	€	14,488

(iii)                            Cash flow

		2020	2019			2018
		(Euro, in thousands)
Net cash flows generated in operating activities	€	7,173	€	2,911	€	3,335
Net cash flows used in investing activities		(2,284)		(1,350)		(799)
Net cash flows used in financing activities		(664)		(709)		—
Net cash flow from discontinued operations	€	4,225	€	852	€	2,536

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Operating Cash Flow

12 Months Ended

Dec. 31, 2020

Consolidated Statement of Cash Flows

Operating Cash Flow

26. Operating Cash Flow

The following table details the adjustments related to the operating cash flow: 

	2020		2019		2018
	(Euro, in thousands)
Adjustment for non-cash transactions
Depreciation and amortization	€	18,682	€	12,448	€	5,081
Impairment loss						1,083
Share-based compensation expenses		79,959		38,297		26,757
Decrease (-)/increase in retirement benefit obligations and provisions		(260)		(156)		99
Unrealized exchange losses/gains (-) and non-cash other financial result		105,055		11,169		(10,063)
Discounting effect of deferred income		16,278		6,900
Fair value re-measurement of share subscription agreement and warrants		(3,034)		181,644
Net change in (fair) value of current financial investments		15,900		3,081
Fair value adjustment financial assets held at fair value through profit or loss		(2,396)		(5,355)		(1,203)
Other non-cash expenses		539
Total adjustment for non-cash transactions	€	230,723	€	248,027	€	21,753
Adjustment for items to disclose separately under operating cash flow
Interest expense	€	9,424	€	1,302	€	780
Interest income		(7,476)		(9,247)		(5,219)
Tax expense		2,119		214		50
Total adjustment for items to disclose separately under operating cash flow	€	4,067	€	(7,731)	€	(4,389)
Adjustment for items to disclose under investing and financing cash flows
Gain (-)/loss on sale of fixed assets	€	82	€	(2)	€	(668)
Interest income on current financial investments		(2,554)		(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	€	( 2,472 )	€	(5,061)	€	(668)
Change in working capital other than deferred income
Increase (-)/decrease in inventories	€	(100)	€	20	€	3
Increase in receivables		(177,155)		(67,263)		(76)
Increase in liabilities		31,163		79,940		19,996
Total change in working capital other than deferred income	€	(146,092)	€	12,698	€	19,922

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Off-balance sheet arrangements

12 Months Ended

Dec. 31, 2020

Off-balance sheet arrangements

Off-balance sheet arrangements

27. Off-balance sheet arrangements

CONTRACTUAL OBLIGATIONS AND COMMITMENTS

We entered into lease agreements for offices, laboratories and cars. As a consequence of the adoption of IFRS 16 Leases, on January 1, 2019, lease obligations in the scope of the new standard are presented as lease liabilities in the statements of financial position and no longer disclosed separately as off-balance sheet commitments. We refer to note 22 for a breakdown of our lease liabilities.

On December 31, 2020, 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	€	347,873	€	271,922		€	73,009	€	2,870	€	72

On December 31, 2019, 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	€	251,670	€	175,006		€	70,675	€	5,989	€	—

On December 31, 2019 we were committed to two leases which have not yet started. The total future cash outflows for leases that had not yet commenced were as follows:

	Total		Less than 1 year			1 - 3 years		3 - 5 years		More than 5 years
					(Euro, in thousands)
Lease commitments not yet commenced	€	8,986	€	5,793		€	1,502	€	1,502	€	188

On December 31, 2018, we had outstanding obligations for future minimum rent payments and 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)
Operating lease obligations	€	27,704	€	4,722		€	10,024	€	6,234	€	6,724
Purchase commitments (*)		222,033		121,139			81,879		19,014		—
Total  contractual obligations & commitments	€	249,737	€	125,862		€	91,903	€	25,248	€	6,724

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 €614.1 million at December 31, 2019, (€74.0 million at December 31, 2018).

On December 31, 2020, after the recent renegotiation of the filgotinib collaboration, our estimate of this cost sharing commitment amounts to €493.4 million, for which we have direct purchase commitments of €18.1 million at December 31, 2020 (€27.5 million at December 31, 2019, €20.3 million at December 31, 2018) reflected in the tables above.

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Contingent assets and liabilities

12 Months Ended

Dec. 31, 2020

Contingent assets and liabilities

Contingent assets and liabilities

28. 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 including customary adjustments for net cash and working capital. 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 will assume all development, manufacturing, commercialization and certain other rights for filgotinib in Europe. Beginning on January 1, 2021, we will 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 and commercialization responsibilities for 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 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 €35 million in January 2021 and will pay an additional €75 million in 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. We achieved two milestones under the first revised agreement in September 2020 totaling $105 million.

As a result of the Option, License and Collaboration agreement signed with Gilead in July 2019, we share further development costs for GLPG1690 equally with Gilead. We were also entitled to an additional milestone for GLPG1690 upon approval in the United States and we were eligible to receive tiered royalties ranging from 20-24% on net sales of GLPG1690 by Gilead in all countries outside Europe. In February 2021, we and Gilead announced our decision to discontinue all ongoing development activities with GLPG1690.

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, potential future development and sales based milestones and royalties.

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Share based payments

12 Months Ended

Dec. 31, 2020

Share based payments

Share based payments

29. 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 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.

The subscription rights offered to members of the supervisory board vest over a period of 36 months at a rate of 1/36th per month. As of 2020, we no longer grant subscription rights to supervisory board members.

Subscription rights 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. 

The table below sets forth a summary of subscription rights outstanding and exercisable on December 31, 2020, per subscription right plan:

				Outstanding					Outstanding	Exercisable
				per	Granted	Exercised	Forfeited	Expired	per	per
Subscription	Allocation	Expiry	Exercise	January 1,	during	during	during	during	December 31,	December 31,
right plan	date	date	price (€)	2020	year	year	year	year	2020	2020
2006 BNL	12/21/2007	12/20/2020	7.12	1,050		(1,050)			—	—
2007 RMV	10/25/2007	10/24/2020	8.65	14,980		(14,980)			—	—
2008	06/26/2008	06/25/2021	5.6	1,365					1,365	1,365
2012	09/03/2012	09/02/2020	14.19	80,040		(80,040)			—	—
2013	05/16/2013	05/15/2021	19.38	120,434		(64,770)			55,664	55,664
2014	07/25/2014	07/24/2022	14.54	252,340		(83,000)			169,340	169,340
2015	04/30/2015	04/29/2023	28.75	282,473		(63,000)			219,473	219,473
2015 (B)	12/22/2015	12/21/2023	49.00	329,500		(68,000)			261,500	261,500
2015 RMV	12/22/2015	12/21/2023	49.00	57,500		(17,500)			40,000	40,000
2016	06/01/2016	05/31/2024	46.10	504,250		(161,625)			342,625	342,625
2016 RMV	06/01/2016	05/31/2024	46.10	120,000		(51,000)			69,000	69,000
2016 (B)	01/20/2017	01/19/2025	62.50	150,000		(140,000)			10,000	10,000
2017	05/17/2017	05/16/2025	80.57	595,500					595,500
2017 RMV	05/17/2017	05/16/2025	80.57	127,500					127,500
2018	04/19/2018	04/18/2026	79.88	1,085,245			(2,000)		1,083,245
2018 RMV	04/19/2018	04/18/2026	79.88	137,500					137,500
2019	04/10/2019	04/09/2027	95.11	1,486,690			(8,850)		1,477,840
2019 RMV	04/10/2019	04/09/2027	95.11	194,750			(1,750)		193,000
2020	04/17/2020	04/16/2028	168.42	—	1,925,185		(19,151)		1,906,034
2020RMV	04/17/2020	04/16/2028	168.42	—	248,150		(8,625)		239,525
Total				5,541,117	2,173,335	(744,965)	(40,376)	—	6,929,111	1,168,967

		Weighted
		average
	Subscription rights	exercise
		price (Euro)
Outstanding on January 1, 2018	3,970,807	€	39.3
Exercisable on December 31, 2017	763,344		13.7
Granted during the period	1,235,245		79.9
Forfeited during the year	(12,000)		43.2
Exercised during the period	(567,270)		13.5
Expired during the year	—		—
Outstanding on December 31, 2018	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

The table below sets forth the inputs into the valuation of the subscription rights.

	2020		2020 RMV		2019		2019 RMV		2018		2018 RMV
	April 17		April 17		April 19		April 19		April 18		April 18
Exercise Price (€)	€	168.42	€	168.42	€	95.11	€	95.11	€	79.88	€	79.88
Weighted average share price at acceptance date (€)	€	178.95	€	178.95	€	107.05	€	107.45	€	84.88	€	84.88
Weighted average fair value on the acceptance date (€)	€	86.45	€	85.79	€	40.04	€	40.05	€	38.39	€	38.39
Weighted average estimated volatility (%)		51.30		51.32		35.86		35.63		39.44		39.44
Weighted average expected life of the subscription rights (years)		6.00		6.00		6.02		6.00		8.00		8.00
Weighted average risk free rate (%)		(0.44)		(0.44)		(0.27)		(0.28)		0.51		0.51
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 26 March 1999.

The weighted average estimated volatility is calculated on the basis of the implied volatility of the share price over the 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 2020 amounted to €79,959 thousand (2019: €38,297 thousand; 2018: €26,757 thousand).

The following table provides an overview of the outstanding subscription rights per category of subscription right holders on December 31, 2020, 2019 and 2018.

Category

	December 31,
	2020		2019		2018
	(in number of subscription rights)
Supervisory board members		157,560		222,600		216,780
Management board members		2,101,874		2,171,874		2,139,374
Other		4,669,677		3,146,643		2,270,628
Total subscription rights outstanding		6,929,111		5,541,117		4,626,782

The outstanding subscription rights at the end of the accounting period have a weighted average exercise price of €103.95 (2019: €70.09; 2018: €53.30) and a weighted average remaining life of 2,050 days (2019: 2,023 days; 2018: 1,975 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 types of restricted stock unit (RSU) programs:

• Plan 2020.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 and Plan 2020.II 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 This plan was granted at the discretion of the supervisory board, as announced in our remuneration policy included in the annual report relating to financial year 2018 under the header "Information on the remuneration policy for the next two years."

• 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. 

The main characteristics of all these plans are as follows:

• the RSUs are offered for no consideration

• four-year vesting period, with 25% vesting each year, except for the RSUs granted under the Plan 2019.I and, solely for beneficiaries who are management board members, the Plan 2020.I, that will all vest at the same time three years after the offer date and the RSUs granted under Plan 2019.III, of which 50% vests after two years and 50% vests after three 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;

• in case of termination of service before the vesting date, forfeiture rules apply.

The table below sets forth a summary of RSUs outstanding at December 31, 2020, per RSU plan: 

		Outstanding				Outstanding
		per	Granted	Forfeited	Paid in cash	per
	Offer	January 1,	during	during	during	December 31,
RSU plan	date	2020	year	year	year	2020
Plan 2019.I	10/16/2019	33,000				33,000
Plan 2019.II	10/16/2019	109,075			(27,268)	81,807
Plan 2019.III	10/16/2019	71,072				71,072
Plan 2020.I	6/5/2020		55,928	(1,052)		54,876
Plan 2020.II	7/5/2020		72,841			72,841
Total		213,147	128,769	(1,052)	(27,268)	313,596

	2020	2019
	(in number of RSUs)
Outstanding on January 1,	213,147	—
Granted during the period	128,769	213,147
Forfeited during the year	(1,052)
Paid in cash during the period	(27,268)
Outstanding on December 31,	313,596	213,147

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, 2020 and December 31, 2019.  

	December 31,
Category	2020	2019
	(in number of RSUs)
Management board members	229,276	188,571
Other	84,320	24,576
Total outstanding RSUs	313,596	213,147

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Related parties

12 Months Ended

Dec. 31, 2020

Related parties

Related parties

30. Related parties

Relationship and transactions with entities with (joint) 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 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.

Furthermore, the extraordinary general meeting of shareholders of October 22, 2019 approved the issuance of warrant A and initial warrant B to Gilead allowing them to further increase its ownership of Galapagos to up to 29.9% of the company’s issued and outstanding shares. 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 of the closing of the subscription agreement and this warrant will have substantially similar terms, including as to exercise price, to the initial warrant B. On November 6, 2019 Gilead exercised warrant A, which resulted in an additional equity investment of €368.0 million. By exercising warrant A 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, due to four capital increases resulting from the exercise of subscription rights under employee subscription right plans in the course of 2020. On January 6, 2021 we received a transparency notification from Gilead notifying a change in the chain of intermediary companies through which Gilead holds its shares in Galapagos and confirming they held 25.54% of the then issued and outstanding shares of Galapagos.

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.

The following balances are outstanding at the end of the reporting period in relation to Gilead:

	December 31,
	2020		2019
	(Euro, in thousands)
Non-current trade receivables	€	50,000	€	—
Trade and other receivables	€	132,825	€	31,645
Trade and other payables	€	27,074	€	39,100

The non-current trade receivables and trade and other receivables balances mainly relate to a total of €160.0 million to receive in relation to the recently modified collaboration for filgotinib of which €110.0 million will be received in 2021 and €50.0 million in 2022. Additionally, the trade and other receivables contain €22.8 million of receivables relating to our collaborations for GLPG1690 and filgotinib. The outstanding liabilities mainly relate to the cross charges from Gilead for the development cost sharing of filgotinib in the fourth quarter of 2020 (€24.8 million).

Due to the approval of Jyseleca, by both the Japanese and European authorities in September 2020, we received milestone payments of respectively $30.0 million (€25.8 million) and $75.0 million (€64.4 million) from Gilead that are recognized in revenue over time until the end of the development period.

During 2020 we recognized in revenue €229.6 million (€80.9 million for the year ended December 31, 2019) relating to the performance obligation for the drug discovery platform and a total of €228.1 million (€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 royalty income for an amount of €16.2 million in relation to the commercialization of Jyseleca.

Furthermore, we recognized €34.1 million (€17.7 million for the year ended December 31, 2019) of cost reimbursements from Gilead related to the development of GLPG1690 as a decrease of the related expenses (on the line research and development expenditure). An amount of €101.0 million (€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 €4.7 million as a deduction of sales & marketing expenses and €3.1 million as a deduction of research and development expenditure (compared to €8.2 million additional sales & marketing expenses for the year ended December 31, 2019) mainly relating to our 50/50 profit/(cost) share mechanism with Gilead for direct sales of Jyseleca (filgotinib) in the shared territory and expenses incurred for the co-promotion activities for Jyseleca (filgotinib).

As at December 31, 2020, 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 €2.0 billion for the drug discovery platform (including the warrant issuance liability relating to subsequent warrant B) and €819 million for the performance obligation relating to filgotinib.

A detailed explanation of our transactions with Gilead in 2019 and 2020 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 31 for an overview of the consolidated companies of the group, which are all wholly-owned subsidiaries of Galapagos NV.

Intercompany transactions between Galapagos NV and its subsidiaries, and amongst the subsidiaries, have been eliminated in the consolidation and are not disclosed in this note.

Relationship and transactions with key management personnel

Our key management personnel consists of the members of our management board and the members of our 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, 2019, our management board had six members: Mr. Onno van de Stolpe, Mr. Bart Filius, Dr. Piet Wigerinck, 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, 2020, 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. Dr Elisabeth Svanberg was appointed as supervisory board member on our annual shareholders’ meeting of April 28, 2020.

Only the CEO was, prior to the implementation of the two-tier governance structure, a member of both the executive committee and the board of directors. Our CEO did not receive any special remuneration for his board membership, as this was part of his total remuneration package in his capacity as management board member.

The remuneration package of the members of key management personnel comprises:

	Year ended December 31,
	2020		2019		2018
Remuneration of key management personnel:
Euro, in thousands (except for the number of subscription rights and RSUs)
Short-term benefits	€	3,102	€	14,129	€	2,909
Management board members as a group (1)
Gross salary		2,531		2,121		1,920
Employer social security on gross salary		—		61		125
Cash bonus		433		1,230		757
Exceptional bonus		—		10,500		—
Employer social security on exceptional bonus		—		108		—
Other short-term benefits		138		109		107
Long-term benefits for management board members as a group  (2)		—		1,874		1,812
Board fees and other short-term benefits for supervisory board members
Raj Parekh		220		90		92
Harrold van Barlingen (3)		—		—		15
Howard Rowe		125		55		53
Werner Cautreels (4)		—		15		48
Katrine Bosley		115		45		45
Christine Mummery (4)		—		13		40
Mary Kerr		115		45		46
Peter Guenter (5)		115		30		—
Daniel O'Day (6)		—		—		—
Linda Higgins (6)		—		—		—
Elisabeth Svanberg (7)		78		—		—
Post-employment benefits (8)		392		323		305
Total benefits excluding subscription rights and  RSUs (9)	€	4,262	€	16,618	€	5,346
Number of subscription rights granted in the year
Management board members as a group		275,000		315,000		350,000
Onno van de Stolpe		85,000		100,000
Bart Filius		50,000		65,000
Andre Hoekema		30,000		50,000
Piet Wigerinck		40,000		50,000
Walid Abi-Saab		40,000		50,000
Michele Manto		30,000		40,000
Supervisory board members as a group		—		45,000		52,500
Raj Parekh				15,000		15,000
Harrold van Barlingen (3)				—		—
Howard Rowe				7,500		7,500
Werner Cautreels (4)						7,500
Katrine Bosley				7,500		7,500
Christine Mummery (4)						7,500
Mary Kerr				7,500		7,500
Peter Guenter (5)				7,500
Daniel O'Day (6)
Linda Higgins (6)
Elisabeth Svanberg (7)
Total number of subscription rights granted in the year		275,000		360,000		402,500
Total cost of subscription rights granted in the year under IFRS 2	€	22,921	€	14,236	€	15,507
Number of RSUs granted in the year (10)
Onno van de Stolpe		18,317		57,528		0
Bart Filius		12,600		39,846		0
Andre Hoekema		832		19,922		0
Piet Wigerinck		12,080		33,077		0
Walid Abi-Saab		12,080		33,077		0
Michele Manto		5,920		5,121		0
Total number of RSUs granted in the year		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.

(2) 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 financial year 2020 the deferred part of the bonus was not paid out.

^{(3) Dr. Van Barlingen's director's mandate expired on April 24, 2018}

(4) Director's mandate expired on April 30, 2019 

(5) Mr. Guenter's supervisory board member's mandate began on April 30, 2019

(6) Supervisory board member's mandate began on October 22, 2019

^{(7) Supervisory board member's mandate began on April 28, 2020}

(8) Only management board members are granted post-employment benefits

(9) For 2018, this amount excludes an amount of €20.1 thousand tax advisory services that is included in the amount of €107 thousand other short-term benefits

(10) 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 and for 2020 in financial year 2020 (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 of their mandates as members of the management board or supervisory board.

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Consolidated companies as of December 31, 2020

12 Months Ended

Dec. 31, 2020

Consolidated companies as of December 31, 2020

Consolidated companies as of December 31, 2020

31. Consolidated companies as of December 31, 2020

		Year ended December 31,
		2020		2019	2018
Name of the subsidiary	Country	% voting right Galapagos NV (directly or indirectly through subsidiaries)	Change in % voting right previous period (2020 vs 2019)	% voting right Galapagos NV (directly or indirectly through subsidiaries)	% voting right Galapagos NV (directly or indirectly through subsidiaries)
BioFocus DPI AG (liquidated)	Switzerland	0%	(100%)	100%	100%
Galapagos Biopharma Belgium BV	Belgium	100%		100%
Galapagos Biopharma Netherlands B.V.	The Netherlands	100%		100%
Galapagos Biopharma Spain S.L.U	Spain	100%		100%
Galapagos Biopharma Italy S.r.l.	Italy	100%		100%
Galapagos Biopharma Germany GmbH	Germany	100%		100%
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%	(100%)	100%	100%
Galapagos Real Estate Netherlands B.V.	The Netherlands	100%		100%
Galapagos SASU	France	100%		100%	100%
Fidelta d.o.o.	Croatia	100%		100%	100%
Xenometrix, Inc. in liquidation	United States	100%		100%	100%

In 2019 we incorporated the following legal entities: Galapagos Biopharma Belgium BV, Galapagos Biopharma Netherlands B.V., Galapagos Biopharma Spain S.L.U., Galapagos Biopharma Italy S.r.l., Galapagos Biopharma Germany GmbH and Galapagos Real Estate Netherlands B.V.. During 2020 we merged Galapagos Real Estate 2 BV with Galapagos Real Estate 1 BV, with the latter being the surviving entity whose company name changed into Galapagos Real Estate Belgium BV.  In 2020, we also completed the liquidation of our Swiss subsidiary Biofocus DPI AG. In 2021, it still needs to be deregistered from the Swiss commercial register.

On November 23, 2020 we signed a share purchase agreement for the sale of our subsidiary Fidelta d.o.o. (Zagreb, Croatia). As we expect that the net assets associated with Fidelta d.o.o. 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. On January 4, 2021, we closed the sale of our fee-for-service business Fidelta to Selvita S.A. Selvita acquired 100% of the outstanding shares in Fidelta.

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, 2020

Financial risk management

Financial risk management

32. 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 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,
	2020		2019(*)		2018(*)
	(Euro, in thousands)
Financial assets held at fair value through profit or loss
Equity instruments	€	8,951	€	11,275	€	6,000
Current financial investments		1,571,858		3,919,216		—
Financial assets at amortised cost
Current financial investments		1,454,420		—		—
Cash and cash equivalents		2,135,187		1,861,616		1,290,796
Restricted cash (current and non-current)		1,482		1,418		1,276
Other non-current assets		907		1,399		644
Trade receivables		184,632		39,603		9,206
Total financial assets	€	5,357,438	€	5,834,526	€	1,307,922
Financial liabilities held at fair value through profit or loss
Current financial instruments	€	3,164	€	6,198	€	—
Financial liabilities at amortised cost
Trade liabilities		134,905		116,749		52,466
Lease liabilities		29,436		25,384		—
Total financial liabilities	€	167,505	€	148,331	€	52,466

(*) The historical consolidated financial information for 2019 and 2018 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 payables and trade 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 ualify for level 1 fair value measurement based upon the closing price of the 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

Our current financial investments and cash and cash equivalents amounted to €5,169.3 million on December 31, 2020. Management forecasts our liquidity requirements to ensure that there is sufficient cash to meet operational needs. We have no credit lines. Such forecasting is based on realistic assumptions with regard 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 current financial investments 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.

The trade receivables consist of a limited amount of creditworthy customers, many of which are large pharmaceutical companies, spread over different geographical areas. 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 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,
	2020		2019		2018
	(Euro, in thousands)
60 - 90 days	€	—	€	87	€	236
90 - 120 days		—		—		12
more than 120 days	€	—	€	—	€	—

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 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 €51.7 million (2019: €57.8 million; 2018: €12.9 million); a 100 basis point decrease in interest rates would have decreased profit or loss, and equity, by approximately €51.7 million (2019: €57.8 million; 2018: €12.9 million). These scenarios assume our entire cash portfolio would immediately reprice at the new interest rates.

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 collaboration partner Gilead in U.S. dollars and acquire some consumables and materials in U.S. dollars, Swiss Francs, GB Pounds and Croatian Kuna.

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 collaboration 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,
	2020		2019		2018
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(116,690)	€	(133,373)	€	(27,200)
Increase in Euros - GB Pounds		303		113		100
Increase in Euros - CH Francs		2,013		538		208
Increase in Euros - HR Kunas		—		650		611
Increase in U.S. Dollars - GB Pounds	€	—	€	(894)	€	(923)

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, 2020), 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, 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, 2020

Auditor's remuneration

Auditor's remuneration

33. Auditor’s remuneration

The statutory auditor’s fees for carrying out his mandate at group level amounted to €1,202.8 thousand in 2020 (2019: €1,406.8 thousand). The fees for audit-related services executed by the statutory auditor, related to the performance of the audit or review of the company’s affiliates financial statements, amounted to €23.9 thousand (2019: €29.2 thousand). Audit-related services executed by persons related to the statutory auditor for carrying out an auditor’s mandate at the level of the Company’s affiliates amounted to €29.2 thousand in 2020 (2019: €29.2 thousand). Other fees related to audit-related fees, which generally the auditor provides, amounted to €161.3 thousand in 2020 (2019: €43.0 thousand). Other fees related to non-audit services executed by the statutory auditor amounted to €47.7 thousand in 2020 (2019: €148.2 thousand). Other fees related to non-audit services executed by persons related to the statutory auditor amounted to €890.7 thousand in 2020 and related to IT services and CSV services (2019: €46.6 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, 2020

Events after balance sheet date

Events after balance sheet date

34. Events after balance sheet date

On March 19, 2021, 99,814 subscription rights were exercised (with an average exercise price of €22.62 per subscription right), of which 41,874 subscription rights were exercised by our CEO, 10,000 subscription rights by other members of our management board, and 5,040 subscription rights by former members of our supervisory board. This resulted in a share capital increase (including issuance premium) of €2,258,042.82 and the issuance of 99,814 new ordinary shares. The closing price of our share on March 19, 2021, was €68.48.

On February 10, 2021, we announced the discontinuation of all development with ziritaxestat due to an insufficient risk-benefit profile observed in the ISABELA Phase 3 program.  

On January 4, 2021, we completed the sale of Fidelta to Selvita S.A. for a total consideration of €37.1 million (including the customary adjustments for cash and working capital). Fidelta will continue performing drug discovery services for us for the next five years for which we have purchase commitments for an aggregate amount of €27.0 million.

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Significant accounting policies (Policies)

12 Months Ended

Dec. 31, 2020

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, 2019

IFRS 16 Leases 

The above new applicable standard affected the consolidated financial statements as follows:

We adopted IFRS 16 on January 1, 2019, in accordance with the transitional provisions of IFRS 16, using the modified retrospective approach. Consequently, the cumulative effect of adopting IFRS 16 was recognized as an adjustment to the opening balance of retained earnings as at January 1, 2019, with no restatement of the comparative figures.

On adoption of IFRS 16, we recognized lease liabilities in relation to leases which had previously been classified as ‘operating leases’ under IAS 17. These liabilities were measured at the present value of the remaining lease payments and discounted using our incremental borrowing rate as of January 1, 2019. Our weighted average incremental borrowing rate applied to the lease liabilities on January 1, 2019 was 1.55%.

The differences between our total operating lease commitments as reported in our consolidated financial statements of December 31, 2018 and the total lease liabilities recognized in our statement of financial position as at January 1, 2019 are summarized below.

	(Euro, in thousands)
Operating lease commitments disclosed as at December 31, 2018	€	27,704
Less : discounting effect using the lessee's incremental borrowing rate at the date of initial application		(1,223)
Less : other		(569)
Lease liability recognized as at January 1, 2019		25,912
Of which are :
current lease liabilities		4,516
non-current lease liabilities	€	21,396

The change in accounting policy affected the statement of financial position as at January 1, 2019 as follows:

	January 1, 2019
	(Euro, in thousands)
Property, plant and equipment (right-of-use assets)	€	26,406
Other current assets (prepaid expenses)		(494)
Effect on total assets		25,912
Accumulated losses		416
Lease liabilities (current and non-current)		25,912
Deferred income		(416)
Effect on total equity and liabilities	€	25,912

We applied the following practical expedients, as permitted by IFRS 16, on transition date: 

▪     Reliance on the previous definition of a lease (as provided by IAS 17) for all contracts that existed on the date of initial application; 

▪     The use of a single discount rate to a portfolio of leases with reasonably similar characteristics; 

▪     Reliance on previous assessments on whether leases are onerous instead of performing an impairment review;

▪     The accounting for operating leases with a remaining lease term of less than 12 months as at January 1, 2019 as short-term leases; 

▪     No recognition of right-of-use assets and liabilities for leases of low value assets.

We refer to our updated accounting policy on leases as a result of the adoption of IFRS 16.

Other new standards and interpretations applicable for the annual period beginning on January 1, 2019 did not have any impact on our consolidated financial statements.

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 any 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, 2020

A number of new standards are effective for annual periods beginning on or after January 1, 2021 with earlier adoption permitted. However we have not early adopted new or amended standards in preparing our consolidated financial statements. Of the standards that are not yet effective, we expect no standard to have a material impact on our financial statements in the period of initial application.

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

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.

Licenses, 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.

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.

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 over 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. 

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 don’t have financial debts at December 31, 2020.

(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 our 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 short-term deposits, 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.

Cash

Cash are financial assets measured at amortized cost and comprise cash balances and short-term deposits with maturities of three months or less from the acquisition date that are subject to an insignificant risk of changes in their value.

Cash equivalents measured at amortized costs

Cash equivalents measured at amortized cost comprise short-term deposits that are readily convertible to cash and 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. We use monthly transaction rates based on the closing exchange rates of the foreign currencies on the last business day of the month preceding the date of the 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 milestones, license fees, non-refundable upfront fees and royalties received in connection with collaboration and license agreements. We also generate 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:

(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 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.

We refer to note 6 for detailed information per agreement and to our Critical accounting judgments and key sources of estimation uncertainty for more information.

OTHER 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 Scheme 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, supervisory board members 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 rights 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 RSUs (Restricted Stock Units)

Management board members and other employees were granted RSUs in 2019 and 2020. 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 RSUs are measured based on the volume weighted 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 RSUs in cash.

Provisions

PROVISIONS

Provisions are recognized on the balance sheet 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.

Leases

Leases

As explained in the beginning of this note, we adopted IFRS 16 on January 1, 2019, resulting in a change in our accounting policy.

Accounting policy as from January 1, 2019

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 is 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 such 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 statement of operations over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

Accounting policy until January 1, 2019

Until the end of 2018, leases of property, plant and equipment were classified as either finance or operating leases.

Leases were classified as finance leases whenever the terms of the lease substantially transferred all the risks and rewards of ownership to the lessee. All other leases were classified as operating leases.

Assets held under finance leases were recognized as our assets at their fair value or, if lower, at the present value of the minimum lease payments, each determined at the inception of the lease. These assets held under finance leases were depreciated over their useful lives on the same bases as owned assets or, where shorter, over the term of the related lease agreement. The corresponding liability to the lessor was included in the balance sheet as a finance lease obligation. The payments were divided proportionally between the financial costs and a diminution of the outstanding balance of the obligation, so that the periodic interest rate on the outstanding balance of the obligation would be constant. Interest was recognized in the statement of operations, unless it was directly attributable to the corresponding asset, in which case it was capitalized.

Rents paid on operating leases were charged to income on a straight-line basis over the term of the relevant lease. Benefits received and receivable as an incentive to enter into an operating lease were also spread on a straight-line basis over the lease term.

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

The group had two reportable segments, R&D and fee-for-service business. Due to the disposal of Fidelta d.o.o. (our fee-for-service segment), we have reported this segment as discontinued operations at December 31, 2020. Galapagos is therefore operating as a single operating segment.

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Significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2020

Significant accounting policies

Schedule of differences between operating lease commitments as reported as per IAS 17 and after adoption IFRS 16

	(Euro, in thousands)
Operating lease commitments disclosed as at December 31, 2018	€	27,704
Less : discounting effect using the lessee's incremental borrowing rate at the date of initial application		(1,223)
Less : other		(569)
Lease liability recognized as at January 1, 2019		25,912
Of which are :
current lease liabilities		4,516
non-current lease liabilities	€	21,396

IFRS 16

Significant accounting policies

Schedule of change in accounting policy

The change in accounting policy affected the statement of financial position as at January 1, 2019 as follows:

	January 1, 2019
	(Euro, in thousands)
Property, plant and equipment (right-of-use assets)	€	26,406
Other current assets (prepaid expenses)		(494)
Effect on total assets		25,912
Accumulated losses		416
Lease liabilities (current and non-current)		25,912
Deferred income		(416)
Effect on total equity and liabilities	€	25,912

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Segment information (Tables)

12 Months Ended

Dec. 31, 2020

Segment information

Summary of revenues by destination

	Year ended December 31,
	2020		2019		2018
	(Euro, in thousands)
United States of  America	€	472,445	€	793,873	€	116,680
Europe		5,607		41,028		161,986
Total	€	478,053	€	834,901	€	278,666

Summary of revenues by major customers

		Year ended December 31,
		2020				2019			2018
Spilt up of revenues by major customers		(Euro, in thousands)	%			(Euro, in thousands)	%		(Euro, in thousands)	%
Gilead:
United States of  America (1)	€	472,445	99%		€	793,873	95%	€	116,640	42%
Europe (1)		1,460	0%			(4,570)	-1%		7,793	3%
AbbVie:
Europe		(52)	0%			26,356	3%		89,936	32%
Novartis:
Europe		4,125	1%			19,177	2%		55,218	20%
Les Laboratoires Servier:
Europe		—	0%			—	0%		9,000	3%
Total revenues from major customers	€	477,978	100%	€		834,836	100%		278,587	100%

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,
	2020		2019 (*)		2018 (*)
		(Euro, in thousands)
Belgium	€	113,524	€	57,007	€	13,134
France		18,398		18,102		5,413
The Netherlands		28,210		7,951		3,947
Croatia		—		6,182		3,661
Switzerland		7,668		1,057		519
Spain		2,755		—		—
Other		388		681		95
Total	€	170,943	€	90,979	€	26,769

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Total revenues and other income (Tables)

12 Months Ended

Dec. 31, 2020

Total revenues and other income

Summary of Revenues

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Recognition of non-refundable upfront payments and license fees	€	411,417	€	812,058	€	196,486
Milestone payments		46,261		2,878		73,394
Reimbursement income		4,073		19,900		8,722
Other revenues		70		66		63
Commercial revenues		16,232		—		—
Total revenues	€	478,053	€	834,901	€	278,666

Revenue by collaboration and by category of revenue

	Over time	Point in time		2020		2019
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	411,417	€	812,058
Gilead collaboration agreement for ziritaxestat				-		666,968
Gilead collaboration agreement for filgotinib(1)				181,816		62,602
Gilead collaboration agreement for drug discovery platform				229,601		80,918
AbbVie collaboration agreement for CF				-		1,569
Milestone payments				46,261		2,878
Gilead collaboration agreement for filgotinib (1)				46,261		(21,187)
AbbVie collaboration agreement for CF				-		24,065
Reimbursement income				4,073		19,900
Novartis collaboration agreement for MOR106				4,125		19,177
AbbVie collaboration agreement for CF				(52)		723
Other revenues				70		66
Other revenues				70		66
Commercial revenues				16,232		-
Sale of goods				2
Royalties				16,227
Other commercial revenues				2
Total revenues			€	478,053	€	834,901
(1) Following the contract amendment with Gilead in 2019, the revenue recognized for filgotinib for the year ended December 31, 2019, included a negative catch-up effect at 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

							(Euro, in thousands)
Allocation of transaction price		Filgotinib agreement 2015		Milestones achieved during 2015-2019		Option, License and Collaboration agreement (July 14, 2019)		December 31, 2019		Other movements in 2020		Filgotinib amendment (December 15, 2020)		December 31, 2020
Upfront consideration	€	275,558			€	3,569,815	€	3,845,373			€	160,000	€	4,005,373
Milestones achieved			€	104,171				104,171	€	90,192				194,363
Royalties								—		16,227				16,227
Impact initial valuation of share subscription		39,003				85,601		124,604						124,604
		314,561		104,171		3,655,416		4,074,148		106,419		160,000		4,340,567
Less :
Warrants issuance liabilities
Warrant A								(43,311)						(43,311)
Initial warrant B								(2,545)						(2,545)
Subsequent warrant B								(16,184)		8,325				(7,859)
		314,561		104,171		3,655,416		4,012,108		114,744		160,000		4,286,852
Allocation to performance obligations
Ziritaxestat						666,967		666,967						666,967
Filgotinib (1)	€	314,561	€	104,171		641,663		1,060,395		106,419		160,000		1,326,814
Drug discovery platform (10 years)					€	2,284,747	€	2,284,747		8,325				2,293,072

Schedule of the revenue recognition of upfront payments, license fees and milestone payments and the impact of the adoption of IFRS 15

	Over time	Point in time		2019		2018
				(Euro, in		(Euro, in
				thousands)		thousands)
Recognition of non-refundable upfront payments and license fees			€	812,058	€	196,486
Gilead collaboration agreement for ziritaxestat				666,968		-
Gilead collaboration agreement for filgotinib(1)				62,602		96,809
Gilead collaboration agreement for drug discovery platform				80,918		-
AbbVie collaboration agreement for CF				1,569		52,176
Novartis collaboration agreement for MOR106				-		47,500
Milestone payments				2,878		73,394
Gilead collaboration agreement for filgotinib(1)				(21,187)		27,623
AbbVie collaboration agreement for CF				24,065		36,771
Servier collaboration agreement for osteoarthritis				-		9,000
Reimbursement income				19,900		8,722
Novartis collaboration agreement for MOR106				19,177		7,718
AbbVie collaboration agreement for CF				723		989
Other reimbursement income				-		16
Other revenues				66		63
Other revenues				66		63
Total revenues			€	834,901	€	278,666

(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 other income

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Grant income	€	5,452	€	6,549	€	1,609
R&D incentives		45,951		43,923		26,912
Other income		804		425		479
Total other income	€	52,207	€	50,896	€	29,000

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Operating costs (Tables)

12 Months Ended

Dec. 31, 2020

Expenses by nature [abstract]

Summary of research and development expenditure

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(161,509)	€	(118,875)	€	(75,819)
Subcontracting		(301,841)		(255,725)		(203,406)
Disposables and lab fees and premises costs		(22,349)		(19,573)		(20,967)
Depreciation		(11,707)		(9,330)		(4,846)
Professional fees		(12,692)		(1,834)		(262)
Other operating expenses		(13,570)		(14,753)		(10,922)
Total R&D expenses	€	(523,667)	€	(420,090)	€	(316,222)

Summary of research and development expenditure by program

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Filgotinib program	€	(126,879)	€	(100,032)	€	(66,138)
Ziritaxestat program		(55,902)		(75,951)		(72,718)
OA program on GLPG1972		(22,966)		(19,958)		(15,751)
Toledo program		(87,107)		(47,204)		(20,967)
CF program		(69)		(3,897)		(30,137)
AtD program on MOR106		(7,618)		(24,051)		(14,999)
Other programs		(223,126)		(148,997)		(95,512)
Total R&D expenses	€	(523,667)	€	(420,090)	€	(316,222)

Summary of sales and marketing expenses

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(31,727)	€	(7,558)	€	(2,282)
Depreciation		(140)		(61)		—
External outsourcing costs		(27,174)		(15,721)		(1,284)
Professional fees		(3,420)		(459)		—
Other operating expenses		(4,007)		(777)		(580)
Total sales and marketing expenses	€	(66,468)	€	(24,577)	€	(4,146)

Summary of general and administrative expenses

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Personnel costs	€	(70,110)	€	(51,204)	€	(24,740)
Depreciation		(5,147)		(1,421)		(449)
Legal and professional fees		(25,592)		(11,568)		(4,026)
Other operating expenses		(17,908)		(8,190)		(5,162)
Total general and administrative expenses	€	(118,757)	€	(72,382)	€	(34,377)

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Staff costs (Tables)

12 Months Ended

Dec. 31, 2020

Staff costs

Staff costs

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Wages and salaries	€	(139,681)	€	(113,660)	€	(57,237)
Social security costs		(26,471)		(14,566)		(10,290)
Pension costs		(7,337)		(4,715)		(2,994)
Costs related to subscription right plans		(79,959)		(38,297)		(26,757)
Other personnel costs		(9,897)		(6,399)		(5,564)
Total personnel costs	€	(263,345)	€	(177,636)	€	(102,842)

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Fair value re-measurement of share subscription agreement and warrants granted to Gilead (Tables)

12 Months Ended

Dec. 31, 2020

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,
	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		3,034		(3,653)
Total fair value re-measurement of share subscription agreement and warrants	€	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	2020		2019
		(Euro, in thousands)
Fair value of financial liability at January 1,	€	(6,198)
Fair value of financial liability at warrant approval date			€	(2,545)
Change in fair value recorded in profit or loss		3,034		(3,653)
Fair value on December 31,	€	(3,164)	€	(6,198)

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Other financial income / expenses (Tables)

12 Months Ended

Dec. 31, 2020

Other financial income / expenses

Schedule of other financial income and expense

	Year ended December 31,
	2020		2019		2018
		(Euro, in thousands)
Other financial income:
Interest income	€	10,030	€	14,305	€	5,217
Effect of discounting long term R&D incentives receivables		93		93		199
Currency exchange gain		4,697		775		10,978
Fair value gain on financial assets held at fair value through profit or loss		2,397		5,355		1,203
Fair value gain on current financial investments		—		611		—
Gain upon sale of financial assets held at fair value through profit or loss		—		2		667
Other finance income		1,450		248		—
Total other financial income		18,667		21,389		18,264
Other financial expenses:
Interest expenses		(9,389)		(1,268)		(780)
Effect of discounting long term deferred income		(16,278)		(6,900)		—
Currency exchange loss		(110,416)		(47,720)		(1,057)
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		(773)		(380)		(764)
Total other financial expense		(152,844)		(59,968)		(2,602)
Total net other financial expense (-)/ income	€	(134,177)	€	(38,579)	€	15,663

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Taxes

Income tax recognized in profit or loss

	Year ended December 31,
	2020		2019		2018
	(Euro, in thousands)
Current tax	€	(1,069)	€	(1,372)	€	(584)
Deferred tax		(157)		1,537		(238)
Income taxes	€	(1,226)	€	165	€	(822)

Tax Liabilities

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Current tax payable	€	1,248	€	2,037	€	1,175
Total tax liabilities	€	1,248	€	2,037	€	1,175

Tax reconciled to the accounting result

	Year ended December 31,
	2020		2019		2018
	(Euro, in thousands)
Income/loss (-) before tax	€	(309,775)	€	148,525	€	(31,417)
Income tax debit/credit (-), calculated using the Belgian statutory tax rate on the accounting income/loss (-) before tax (theoretical)		(77,444)		43,934		(9,293)
Tax expenses/income (-) in statement of operations (effective)		1,226		(165)		822
Difference in tax expense/income to explain	€	78,670	€	(44,097)	€	10,116
Effect of tax rates in other jurisdictions	€	184	€	960	€	599
Effect of non-taxable revenues		(10,196)		(13,079)		(11,547)
Effect of share based payment expenses without tax impact		19,990		10,318		7,530
Effect of expenses/income (-) not subject to tax		(639)		53,394		175
Effect of non tax-deductible expenses		1,053		724		914
Effect of recognition of previously non recognized deferred tax assets		(475)		(2,286)		(532)
Effect of tax losses (utilized) reversed		(150)		(136)		(150)
Effect of under or over provision in prior periods		(25)		30		—
Effect of non-recognition of deferred tax assets		69,141		47,413		13,127
Effect of derecognition of previously recognized deferred tax assets		157		—		—
Effect of use of investment deduction		(370)		—		—
Effect of use of IID		—		(141,435)		—
Total explanations	€	78,670	€	(44,097)	€	10,116

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Income/loss (-) per share (Tables)

12 Months Ended

Dec. 31, 2020

Income/loss (-) per share

Schedule of income/loss (-) per share

	Year ended December 31,
	2020		2019		2018
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(305,436)	€	149,845	€	(29,259)
Number of shares (thousands)
Weighted average number of shares for the purpose of basic income/loss (-) per share		65,075		57,614		52,113
Basic income/loss (-) per share (Euros)	€	(4.69)	€	2.60	€	(0.56)
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€	(305,436)	€	149,845	€	(29,259)
Number of shares (thousands)
Weighted average number of shares for the purpose of diluted income/loss (-) per share		65,075		57,614		52,113
Number of dilutive potential ordinary shares		—		2,498		—
Diluted income/loss (-) per share (Euros)	€	(4.69)	€	2.49	€	(0.56)

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Intangible assets (Tables)

12 Months Ended

Dec. 31, 2020

Intangible assets

Schedule of intangible assets

		Software & databases		Brands, licenses, patents & know-how		Contract costs		Total
	(Euro, in thousands)
Acquisition value
On January 1 , 2018		€	7,496	€	8,586	€	—	€	16,082
Additions			1,561		1,763				3,325
Sales and disposals			(20)		(7,630)				(7,650)
Translation differences			74						74
On December 31, 2018			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
Amortization and impairment
On January 1 , 2018		€	6,514	€	7,070	€	—	€	13,587
Amortization			681		426				1,107
Impairment					1,083				1,083
Sales and disposals			(20)		(7,630)				(7,650)
Translation differences			74						74
On December 31, 2018			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
Carrying amount
On December 31, 2018		€	1,862	€	1,771	€	—	€	3,632
On December 31, 2019		€	6,507	€	3,546	€	14,872	€	24,927
On December 31, 2020		€	13,683	€	40,549	€	13,334	€	67,565

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Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2020

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, 2018	€	4,736	€	33,060	€	3,209	€	1,189	€	42,195
Additions		275		4,674		1,039		4,404		10,392
Sales and disposals				(486)		(826)				(1,311)
Reclassifications				753		13		(766)		—
Translation differences				29		16				46
On December 31, 2018		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
Depreciations and impairment
On January 1 , 2018	€	2,342	€	20,495	€	2,407	€	258	€	25,502
Depreciation		344		3,377		236		17		3,974
Sales and disposals				(485)		(826)				(1,310)
Translation differences				16		2				18
On December 31, 2018		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
Carrying amount
On December 31, 2018	€	2,325	€	14,628	€	1,632	€	4,552	€	23,137
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

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 December 31, 2018	€	—	€	—	€	—	€	—
Change in accounting policy ( modified retrospective application IFRS 16)		24,056		219		2,130		26,406
Restated balance 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
Depreciations and impairment
On December 31, 2018	€	—	€	—	€	—	€	—
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
Carrying amount
On December 31, 2019	€	22,694	€	212	€	2,440	€	25,345
On December 31, 2020	€	31,027	€	270	€	3,817	€	35,113

	December 31,
Carrying amount		2020		2019		2018
Property, plant and equipment fully owned	€	68,264	€	40,707	€	23,137
Right-of-use		35,113		25,345		—
Total property, plant and equipment	€	103,378	€	66,052	€	23,137

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Other non-current assets (Tables)

12 Months Ended

Dec. 31, 2020

Other non-current assets

Schedule of other non-current assets

		December 31,
	2020		2019		2018
	(Euro, in thousands)
Non-current restricted cash	€	1,482	€	1,418	€	1,276
Financial assets held at fair value through profit or loss		8,951		11,275		6,000
Other non-current assets		910		1,399		643
Total other non-current assets	€	11,343	€	14,091	€	7,919

Schedule of financial assets held at fair value through profit or loss

		December 31,
	2020		2019		2018
	(Euro, in thousands)
Costs at January 1,	€	4,736	€	4,818	€	2,373
Acquisitions of the year		1,994		—		4,736
Disposals of the year		(2,820)		(82)		(2,291)
Costs at December 31,		3,910		4,736		4,818
Fair value adjustment at January 1,		6,539		1,182		(619)
Cancellation of fair value adjustment following disposal		(3,894)		2		598
Fair value adjustment of the year		2,397		5,355		1,203
Fair value adjustment at December 31,		5,042		6,539		1,182
Net book value at  December 31,	€	8,951	€	11,275	€	6,000

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Research and Development incentives receivables (Tables)

12 Months Ended

Dec. 31, 2020

Research and Development incentives receivables

Schedule of the classifications of R&D incentives receivables

		December 31,
	2020		2019		2018
		(Euro, in thousands)
Non-current R&D incentives receivables	€	111,624	€	93,407	€	73,443
Current R&D incentives receivables		24,104		21,949		11,203
Total R&D incentives receivables	€	135,728	€	115,356	€	84,646

Schedule of maturities of non-current R&D incentives receivables

	December 31, 2020
	Maturity date
	2022		2023		2024		2025		2026-2030		Total
	(Euro, in thousands)
French non-current R&D incentives receivables - discounted value	€	10,223		11,911		11,722					€	33,856
Belgian non-current R&D incentives receivables - discounted value		6,647		8,429		11,078		13,716		37,898		77,768
Total non-current R&D incentives receivables - discounted value	€	16,870	€	20,340		22,800		13,716		37,898	€	111,624

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Trade and other receivables and other current assets (Tables)

12 Months Ended

Dec. 31, 2020

Trade and other receivables and other current assets

Schedule of trade and other receivables and other current assets

		December 31,
	2020		2019		2018
	(Euro, in thousands)
Non-current trade receivables	€	50,000	€	—	€	—
Trade receivables		134,632		39,603		9,206
Prepayments		219		292		142
Other receivables		13,568		14,114		9,261
Trade and other receivables		148,418		54,009		18,609
Inventories		355		255		276
Accrued income		1,096		4,443		3,863
Deferred charges		10,502		4,439		4,104
Other current assets		11,953		9,138		8,244
Total trade and other receivables & other current assets	€	210,371	€	63,147	€	26,852

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Cash and cash equivalents (Tables)

12 Months Ended

Dec. 31, 2020

Cash and cash equivalents.

Schedule of cash and cash equivalents

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Cash at banks	€	1,239,993	€	907,939	€	358,016
Term deposits		895,194		953,677		733,537
Money market funds		—		—		199,243
Cash and cash equivalents from continuing operations		2,135,187		1,861,616		1,290,796
Cash and cash equivalents included in assets classified as held for sale		7,884		—		—
Total cash and cash equivalents	€	2,143,071	€	1,861,616	€	1,290,796

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Share capital (Tables)

12 Months Ended

Dec. 31, 2020

Share capital

Schedule of reconciliation of share capital

	2020		2019		2018
	(Euro, in thousands)
On January 1	€	287,282	€	236,540	€	233,414
Share capital increase		4,031		55,189		19,090
Costs of capital increase		—		(4,447)		(15,964)
Share capital on December 31,	€	291,312	€	287,282	€	236,540
Aggregate share capital	€	353,819	€	349,789	€	294,600
Costs of capital increase (accumulated)		(62,507)		(62,507)		(58,060)
Share capital on December 31,	€	291,312	€	287,282	€	236,540

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, 2018						46,256	€	250,187
March 20, 2018				1,613	298
June 20, 2018				556	103
September 17, 2018		16,021			2,961
October 3, 2018				733	135
November 23, 2018				167	31
December 31, 2018						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 18, 2020				467	86
December 4, 2020				384	71
December 31, 2020						65,412	€	353,819

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, 2018		50,936,778	€	233,414	€	993,025	€	1,226,439
March 20, 2018 : exercise of subscription rights		298,184		1,613		2,311		3,924	13.16	83.72
June 20, 2018 : exercise of subscription rights		102,801		556		781		1,337	13.01	85.00
September 17, 2018 : U.S. public offering
ADSs (fully paid)		2,961,373		16,021		280,167		296,188
Underwriter discounts and offering expenses (paid)				(15,964)				(15,964)
Total U.S. public offering		2,961,373		57		280,167		280,224		99.68
October 3, 2018 : exercise of subscription rights		135,485		733		1,281		2,014	14.86	94.32
November 23, 2018 : exercise of subscription rights		30,800		167		215		382	12.40	88.90
On December 31, 2018		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

Summary of other information

	Ordinary shares		Total
Accounting par value of shares (€)		5.41		5.41

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Deferred tax (Tables)

12 Months Ended

Dec. 31, 2020

Deferred tax

Schedule of deferred tax

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Recognized deferred tax assets and liabilities
Assets	€	4,475	€	4,205	€	2,514
Liabilities	€	—	€	—	€	—
Deferred tax assets unrecognized	€	365,639	€	289,833	€	223,377
Deferred taxes in the consolidated statement of operations	€	(157)	€	1,537	€	(238)
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)		581		1,537		528
Deferred tax expenses relating to temporary differences		(44)		—		—
Deferred tax expenses relating to use or derecognition of previously recognized deferred tax assets		(695)		—		(766)

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Lease liabilities (Tables)

12 Months Ended

Dec. 31, 2020

Lease liabilities.

Schedule of lease liabilities

	December 31,						December 31,
	2020		2019		2018		2020		2019		2018
		(Euro, in thousands)						(Euro, in thousands)
		Lease payments						Present value of lease payments
Lease liabilities
Within one year	€	6,772	€	6,189			€	6,401	€	5,826
In the second to fifth years inclusive		20,399		16,320				19,833		15,783
After five years		3,214		3,844				3,201		3,775
	€	30,385	€	26,353	€	-	€	29,436	€	25,384	€	-
Less future finance charges		949		969
Present value of lease liabilities	€	29,436	€	25,384	€	-
Less amount due for settlement within 12 months								6,401		5,826
Amount due for settlement after 12 months							€	23,035	€	19,558	€	-

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Trade and other liabilities (Tables)

12 Months Ended

Dec. 31, 2020

Trade and other liabilities

Schedule of trade and other liabilities

	December 31,
	2020		2019		2018
	(Euro, in thousands)
Trade and other liabilities	€	171,316	€	142,510	€	68,038
Other non-current liabilities		8,096		6,989		1,578
Accrued charges		1,070		923		890
Total trade and other liabilities	€	180,482	€	150,422	€	70,506

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Deferred income (Tables)

12 Months Ended

Dec. 31, 2020

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		Servier collaboration agreement for osteoarthritis		Deferred income related to contracts in our fee-for-service segment		Other deferred income (grants)
		(Euro, in thousands)
On December 31, 2017	€	219,892	€	213,981	€	—	€	—	€	—	€	5,362	€	248	€	300
Reclassified from equity following adoption of IFRS 15		83,220		43,832						44,749		(5,362)
On Januari 1, 2018		303,112		257,814		—		—		44,749		—		248		300
Upfront received		38,874								38,874
Milestones received		20,965		12,417						8,548
Revenue recognition of upfront		(148,985)		(96,809)						(52,176)
Revenue recognition of milestones		(64,394)		(27,623)						(36,771)
Other movements		229												222		7
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 payments		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

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Discontinued operations (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure of analysis of single amount of discontinued operations [abstract]

Schedule of financial statements in relation to the discontinued operations

	Year ended December 31,
	2020		2019			2018
		(Euro, in thousands, except share and per share data)
Revenues	€	16,140	€	10,084	€	10,170
Other income				8		9
Total revenues and other income		16,140		10,092		10,179
Research and development expenses		(7,685)		(7,229)		(6,653)
General and administrative expenses		(2,000)		(1,319)		(1,253)
Total operating expenses		(9,685)		(8,548)		(7,906)
Operating income		6,455		1,544		2,273
Other financial income		179		93		71
Other financial expenses		(176)		(102)		(135)
Income before tax		6,458		1,535		2,209
Income taxes		(893)		(379)		773
Net income	€	5,565	€	1,156	€	2,981
Basic income per share from discontinued operations	€	0.09	€	0.02	€	0.06
Diluted income per share from discontinued operations	€	0.08	€	0.02	€	0.06
Weighted average number of shares (in thousands of shares)		65,075		57,614		52,113
Weighted average number of shares - Diluted (in thousands of shares)		67,572		60,112		53,922

	2020
		(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 assets		863
Total assets classified as held for sale		23,406
Non-current lease liabilities		4,115
Other non-current liabilities		70
Trade and other liabilities		3,649
Current lease liabilities		727
Income tax payable		356
Liabilities associated with assets classified as held for sale		8,917
Net assets	€	14,488

		2020	2019			2018
		(Euro, in thousands)
Net cash flows generated in operating activities	€	7,173	€	2,911	€	3,335
Net cash flows used in investing activities		(2,284)		(1,350)		(799)
Net cash flows used in financing activities		(664)		(709)		—
Net cash flow from discontinued operations	€	4,225	€	852	€	2,536

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Operating Cash Flow (Tables)

12 Months Ended

Dec. 31, 2020

Consolidated Statement of Cash Flows

Adjustments related to operating cash flow

	2020		2019		2018
	(Euro, in thousands)
Adjustment for non-cash transactions
Depreciation and amortization	€	18,682	€	12,448	€	5,081
Impairment loss						1,083
Share-based compensation expenses		79,959		38,297		26,757
Decrease (-)/increase in retirement benefit obligations and provisions		(260)		(156)		99
Unrealized exchange losses/gains (-) and non-cash other financial result		105,055		11,169		(10,063)
Discounting effect of deferred income		16,278		6,900
Fair value re-measurement of share subscription agreement and warrants		(3,034)		181,644
Net change in (fair) value of current financial investments		15,900		3,081
Fair value adjustment financial assets held at fair value through profit or loss		(2,396)		(5,355)		(1,203)
Other non-cash expenses		539
Total adjustment for non-cash transactions	€	230,723	€	248,027	€	21,753
Adjustment for items to disclose separately under operating cash flow
Interest expense	€	9,424	€	1,302	€	780
Interest income		(7,476)		(9,247)		(5,219)
Tax expense		2,119		214		50
Total adjustment for items to disclose separately under operating cash flow	€	4,067	€	(7,731)	€	(4,389)
Adjustment for items to disclose under investing and financing cash flows
Gain (-)/loss on sale of fixed assets	€	82	€	(2)	€	(668)
Interest income on current financial investments		(2,554)		(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	€	( 2,472 )	€	(5,061)	€	(668)
Change in working capital other than deferred income
Increase (-)/decrease in inventories	€	(100)	€	20	€	3
Increase in receivables		(177,155)		(67,263)		(76)
Increase in liabilities		31,163		79,940		19,996
Total change in working capital other than deferred income	€	(146,092)	€	12,698	€	19,922

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Off-balance sheet arrangements (Tables)

12 Months Ended

Dec. 31, 2020

Off-balance sheet arrangements

Schedule of outstanding obligation for future lease and purchase commitments

We entered into lease agreements for offices, laboratories and cars. As a consequence of the adoption of IFRS 16 Leases, on January 1, 2019, lease obligations in the scope of the new standard are presented as lease liabilities in the statements of financial position and no longer disclosed separately as off-balance sheet commitments. We refer to note 22 for a breakdown of our lease liabilities.

On December 31, 2020, 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	€	347,873	€	271,922		€	73,009	€	2,870	€	72

On December 31, 2019, 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	€	251,670	€	175,006		€	70,675	€	5,989	€	—

Schedule of future cash outflows for leases that had not yet commenced

On December 31, 2019 we were committed to two leases which have not yet started. The total future cash outflows for leases that had not yet commenced were as follows:

	Total		Less than 1 year			1 - 3 years		3 - 5 years		More than 5 years
					(Euro, in thousands)
Lease commitments not yet commenced	€	8,986	€	5,793		€	1,502	€	1,502	€	188

Schedule of future minimum rent payments and purchase commitments

On December 31, 2018, we had outstanding obligations for future minimum rent payments and 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)
Operating lease obligations	€	27,704	€	4,722		€	10,024	€	6,234	€	6,724
Purchase commitments (*)		222,033		121,139			81,879		19,014		—
Total  contractual obligations & commitments	€	249,737	€	125,862		€	91,903	€	25,248	€	6,724

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 €614.1 million at December 31, 2019, (€74.0 million at December 31, 2018).

On December 31, 2020, after the recent renegotiation of the filgotinib collaboration, our estimate of this cost sharing commitment amounts to €493.4 million, for which we have direct purchase commitments of €18.1 million at December 31, 2020 (€27.5 million at December 31, 2019, €20.3 million at December 31, 2018) reflected in the tables above.

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Share based payments (Tables)

12 Months Ended

Dec. 31, 2020

Subscription rights

Share based payments

Schedule of summary of other equity instruments outstanding and exercisable per plan

				Outstanding					Outstanding	Exercisable
				per	Granted	Exercised	Forfeited	Expired	per	per
Subscription	Allocation	Expiry	Exercise	January 1,	during	during	during	during	December 31,	December 31,
right plan	date	date	price (€)	2020	year	year	year	year	2020	2020
2006 BNL	12/21/2007	12/20/2020	7.12	1,050		(1,050)			—	—
2007 RMV	10/25/2007	10/24/2020	8.65	14,980		(14,980)			—	—
2008	06/26/2008	06/25/2021	5.6	1,365					1,365	1,365
2012	09/03/2012	09/02/2020	14.19	80,040		(80,040)			—	—
2013	05/16/2013	05/15/2021	19.38	120,434		(64,770)			55,664	55,664
2014	07/25/2014	07/24/2022	14.54	252,340		(83,000)			169,340	169,340
2015	04/30/2015	04/29/2023	28.75	282,473		(63,000)			219,473	219,473
2015 (B)	12/22/2015	12/21/2023	49.00	329,500		(68,000)			261,500	261,500
2015 RMV	12/22/2015	12/21/2023	49.00	57,500		(17,500)			40,000	40,000
2016	06/01/2016	05/31/2024	46.10	504,250		(161,625)			342,625	342,625
2016 RMV	06/01/2016	05/31/2024	46.10	120,000		(51,000)			69,000	69,000
2016 (B)	01/20/2017	01/19/2025	62.50	150,000		(140,000)			10,000	10,000
2017	05/17/2017	05/16/2025	80.57	595,500					595,500
2017 RMV	05/17/2017	05/16/2025	80.57	127,500					127,500
2018	04/19/2018	04/18/2026	79.88	1,085,245			(2,000)		1,083,245
2018 RMV	04/19/2018	04/18/2026	79.88	137,500					137,500
2019	04/10/2019	04/09/2027	95.11	1,486,690			(8,850)		1,477,840
2019 RMV	04/10/2019	04/09/2027	95.11	194,750			(1,750)		193,000
2020	04/17/2020	04/16/2028	168.42	—	1,925,185		(19,151)		1,906,034
2020RMV	04/17/2020	04/16/2028	168.42	—	248,150		(8,625)		239,525
Total				5,541,117	2,173,335	(744,965)	(40,376)	—	6,929,111	1,168,967

Schedule of summary of other equity instruments outstanding and exercisable

		Weighted
		average
	Subscription rights	exercise
		price (Euro)
Outstanding on January 1, 2018	3,970,807	€	39.3
Exercisable on December 31, 2017	763,344		13.7
Granted during the period	1,235,245		79.9
Forfeited during the year	(12,000)		43.2
Exercised during the period	(567,270)		13.5
Expired during the year	—		—
Outstanding on December 31, 2018	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

Schedule of inputs into the valuation of the other equity instruments

	2020		2020 RMV		2019		2019 RMV		2018		2018 RMV
	April 17		April 17		April 19		April 19		April 18		April 18
Exercise Price (€)	€	168.42	€	168.42	€	95.11	€	95.11	€	79.88	€	79.88
Weighted average share price at acceptance date (€)	€	178.95	€	178.95	€	107.05	€	107.45	€	84.88	€	84.88
Weighted average fair value on the acceptance date (€)	€	86.45	€	85.79	€	40.04	€	40.05	€	38.39	€	38.39
Weighted average estimated volatility (%)		51.30		51.32		35.86		35.63		39.44		39.44
Weighted average expected life of the subscription rights (years)		6.00		6.00		6.02		6.00		8.00		8.00
Weighted average risk free rate (%)		(0.44)		(0.44)		(0.27)		(0.28)		0.51		0.51
Expected dividends		None		None		None		None		None		None

Schedule of summary of other equity instruments outstanding by category

	December 31,
	2020		2019		2018
	(in number of subscription rights)
Supervisory board members		157,560		222,600		216,780
Management board members		2,101,874		2,171,874		2,139,374
Other		4,669,677		3,146,643		2,270,628
Total subscription rights outstanding		6,929,111		5,541,117		4,626,782

Restricted Stock Units (RSUs)

Share based payments

Summary of other equity instruments per plan

		Outstanding				Outstanding
		per	Granted	Forfeited	Paid in cash	per
	Offer	January 1,	during	during	during	December 31,
RSU plan	date	2020	year	year	year	2020
Plan 2019.I	10/16/2019	33,000				33,000
Plan 2019.II	10/16/2019	109,075			(27,268)	81,807
Plan 2019.III	10/16/2019	71,072				71,072
Plan 2020.I	6/5/2020		55,928	(1,052)		54,876
Plan 2020.II	7/5/2020		72,841			72,841
Total		213,147	128,769	(1,052)	(27,268)	313,596

Summary of number of other equity instruments per plan

	2020	2019
	(in number of RSUs)
Outstanding on January 1,	213,147	—
Granted during the period	128,769	213,147
Forfeited during the year	(1,052)
Paid in cash during the period	(27,268)
Outstanding on December 31,	313,596	213,147

Schedule of summary of other equity instruments outstanding by category

	December 31,
Category	2020	2019
	(in number of RSUs)
Management board members	229,276	188,571
Other	84,320	24,576
Total outstanding RSUs	313,596	213,147

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Related parties (Tables)

12 Months Ended

Dec. 31, 2020

Related parties

Summary of outstanding balances

	December 31,
	2020		2019
	(Euro, in thousands)
Non-current trade receivables	€	50,000	€	—
Trade and other receivables	€	132,825	€	31,645
Trade and other payables	€	27,074	€	39,100

Summary of remuneration package of the members of key management personnel

	Year ended December 31,
	2020		2019		2018
Remuneration of key management personnel:
Euro, in thousands (except for the number of subscription rights and RSUs)
Short-term benefits	€	3,102	€	14,129	€	2,909
Management board members as a group (1)
Gross salary		2,531		2,121		1,920
Employer social security on gross salary		—		61		125
Cash bonus		433		1,230		757
Exceptional bonus		—		10,500		—
Employer social security on exceptional bonus		—		108		—
Other short-term benefits		138		109		107
Long-term benefits for management board members as a group  (2)		—		1,874		1,812
Board fees and other short-term benefits for supervisory board members
Raj Parekh		220		90		92
Harrold van Barlingen (3)		—		—		15
Howard Rowe		125		55		53
Werner Cautreels (4)		—		15		48
Katrine Bosley		115		45		45
Christine Mummery (4)		—		13		40
Mary Kerr		115		45		46
Peter Guenter (5)		115		30		—
Daniel O'Day (6)		—		—		—
Linda Higgins (6)		—		—		—
Elisabeth Svanberg (7)		78		—		—
Post-employment benefits (8)		392		323		305
Total benefits excluding subscription rights and  RSUs (9)	€	4,262	€	16,618	€	5,346
Number of subscription rights granted in the year
Management board members as a group		275,000		315,000		350,000
Onno van de Stolpe		85,000		100,000
Bart Filius		50,000		65,000
Andre Hoekema		30,000		50,000
Piet Wigerinck		40,000		50,000
Walid Abi-Saab		40,000		50,000
Michele Manto		30,000		40,000
Supervisory board members as a group		—		45,000		52,500
Raj Parekh				15,000		15,000
Harrold van Barlingen (3)				—		—
Howard Rowe				7,500		7,500
Werner Cautreels (4)						7,500
Katrine Bosley				7,500		7,500
Christine Mummery (4)						7,500
Mary Kerr				7,500		7,500
Peter Guenter (5)				7,500
Daniel O'Day (6)
Linda Higgins (6)
Elisabeth Svanberg (7)
Total number of subscription rights granted in the year		275,000		360,000		402,500
Total cost of subscription rights granted in the year under IFRS 2	€	22,921	€	14,236	€	15,507
Number of RSUs granted in the year (10)
Onno van de Stolpe		18,317		57,528		0
Bart Filius		12,600		39,846		0
Andre Hoekema		832		19,922		0
Piet Wigerinck		12,080		33,077		0
Walid Abi-Saab		12,080		33,077		0
Michele Manto		5,920		5,121		0
Total number of RSUs granted in the year		61,829		188,571		-

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Consolidated companies as of December 31, 2020 (Tables)

12 Months Ended

Dec. 31, 2020

Consolidated companies as of December 31, 2020

Disclosure of voting rights in consolidated companies

		Year ended December 31,
		2020		2019	2018
Name of the subsidiary	Country	% voting right Galapagos NV (directly or indirectly through subsidiaries)	Change in % voting right previous period (2020 vs 2019)	% voting right Galapagos NV (directly or indirectly through subsidiaries)	% voting right Galapagos NV (directly or indirectly through subsidiaries)
BioFocus DPI AG (liquidated)	Switzerland	0%	(100%)	100%	100%
Galapagos Biopharma Belgium BV	Belgium	100%		100%
Galapagos Biopharma Netherlands B.V.	The Netherlands	100%		100%
Galapagos Biopharma Spain S.L.U	Spain	100%		100%
Galapagos Biopharma Italy S.r.l.	Italy	100%		100%
Galapagos Biopharma Germany GmbH	Germany	100%		100%
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%	(100%)	100%	100%
Galapagos Real Estate Netherlands B.V.	The Netherlands	100%		100%
Galapagos SASU	France	100%		100%	100%
Fidelta d.o.o.	Croatia	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, 2020

Financial risk management

Disclosure of categories of material financial assets and liabilities

	December 31,
	2020		2019(*)		2018(*)
	(Euro, in thousands)
Financial assets held at fair value through profit or loss
Equity instruments	€	8,951	€	11,275	€	6,000
Current financial investments		1,571,858		3,919,216		—
Financial assets at amortised cost
Current financial investments		1,454,420		—		—
Cash and cash equivalents		2,135,187		1,861,616		1,290,796
Restricted cash (current and non-current)		1,482		1,418		1,276
Other non-current assets		907		1,399		644
Trade receivables		184,632		39,603		9,206
Total financial assets	€	5,357,438	€	5,834,526	€	1,307,922
Financial liabilities held at fair value through profit or loss
Current financial instruments	€	3,164	€	6,198	€	—
Financial liabilities at amortised cost
Trade liabilities		134,905		116,749		52,466
Lease liabilities		29,436		25,384		—
Total financial liabilities	€	167,505	€	148,331	€	52,466

(*) The historical consolidated financial information for 2019 and 2018 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.

Disclosure of aging balance of receivables

	December 31,
	2020		2019		2018
	(Euro, in thousands)
60 - 90 days	€	—	€	87	€	236
90 - 120 days		—		—		12
more than 120 days	€	—	€	—	€	—

Foreign exchange risk

Financial risk management

Disclosure of sensitivity of exchange rate risk

	December 31,
	2020		2019		2018
Net book value	(Euro, in thousands)
Increase in Euros - U.S. Dollars	€	(116,690)	€	(133,373)	€	(27,200)
Increase in Euros - GB Pounds		303		113		100
Increase in Euros - CH Francs		2,013		538		208
Increase in Euros - HR Kunas		—		650		611
Increase in U.S. Dollars - GB Pounds	€	—	€	(894)	€	(923)

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General information (Details) € in Millions	Apr. 01, 2021 EUR (€)	Dec. 31, 2020 employee
Summary of financial statements in relation to the discontinued operations
Number of employees related to continuing operations		1,304
Fee-for-service business (held for sale)
Summary of financial statements in relation to the discontinued operations
Total consideration received | €	€ (37.1)
Fidelta d.o.o. (fee-for-service segment)
Summary of financial statements in relation to the discontinued operations
Number of employees		185

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Summary of significant transaction (Details) € / shares in Units, € in Thousands								1 Months Ended	12 Months Ended
	Dec. 15, 2020 EUR (€)	Nov. 06, 2019 EUR (€)	Oct. 22, 2019 € / shares	Aug. 23, 2019	Aug. 22, 2019	Jul. 14, 2019 EUR (€) € / shares	Jul. 14, 2019 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)	Dec. 31, 2020 USD ($)	Jul. 14, 2019 USD ($)
Summary of significant transaction
Global research and development collaboration term						10 years	10 years
Upfront payment received						€ 3,569,800	$ 3,950,000,000
Equity investment						€ 960,100							$ 1,100,000,000
Additional equity investment from warrant exercise | €									€ 28,287	€ 17,167	€ 7,657
Cost share for global development activities									50.00%			50.00%
Option rights period						10 years	10 years
Extension option rights period						3 years	3 years
Opt-in payments to be received for each program | $							$ 150,000,000
Milestones achieved | €									€ 46,261	€ 2,878	€ 73,394
GLPG 1690 License
Summary of significant transaction
Regulatory milestone fee | $							325,000,000
GLPG 1972 License
Summary of significant transaction
Regulatory milestone fee | $							550,000,000
Additional milestone fee | $							200,000,000
Filgotinib drug license
Summary of significant transaction
Development and regulatory milestones | $							295,000,000
Sales based milestone payment | $							600,000,000
Number of milestone payments achieved | $								2
Proceeds from milestone payments | $								$ 105,000,000
United States | GLPG 1972 License
Summary of significant transaction
License fee on election of option to license | $							$ 250,000,000
Minimum | Outside Europe
Summary of significant transaction
Tiered royalty Percentage						20.00%	20.00%
Minimum | Outside Europe | Filgotinib drug license
Summary of significant transaction
Tiered royalty Percentage						20.00%	20.00%		20.00%
Maximum | Outside Europe
Summary of significant transaction
Tiered royalty Percentage						24.00%	24.00%
Maximum | Outside Europe | Filgotinib drug license
Summary of significant transaction
Tiered royalty Percentage						30.00%	30.00%		30.00%
Gilead
Summary of significant transaction
Global research and development collaboration term						10 years	10 years
Cost share for global development activities						50.00%							50.00%
Number of directors represented as board members			2
Premium						20.00%	20.00%
Volume of days						30 days	30 days
Percentage of stake		25.10%		22.04%	12.30%				25.54%
Restricting Gilead's ability to seek to acquire			10 years
Maximum share holding percentage			29.90%
Subscription Price | € / shares						€ 140.59
Gilead | Filgotinib drug license
Summary of significant transaction
Future global development cost sharing ratio before predetermined level									100.00%
Amount receivable in relation to the collaboration | €									€ 160,000
Amounts Receivable Related Party Transactions in Next Twelve Months | €									110,000
Amounts Receivable Related Party Transactions Year Two | €									50,000
Upfront payments receivable									125,000			$ 151,800,000
Upfront Payments Receivable Related Party Transactions In Next Fiscal Year | €									75,000
Upfront Payments Receivable Related Party Transactions In Year Two | €									€ 50,000
Gilead | Filgotinib drug license | Group B activities [Member]
Summary of significant transaction
Cost share for global development activities									50.00%			50.00%
Gilead | Reassessment Responsibilities [Member] | Filgotinib drug license
Summary of significant transaction
Upfront payments | €	€ 35,000
Upfront payments receivable									€ 35,000			$ 42,500,000
Gilead | Minimum
Summary of significant transaction
Cost share for global development activities						20.00%							20.00%
Gilead | Minimum | Filgotinib drug license
Summary of significant transaction
Future global development cost sharing ratio before predetermined level									20.00%
Gilead | Minimum | Europe | Filgotinib drug license
Summary of significant transaction
Percentage of future net sales from 2024									8.00%			8.00%
Gilead | Maximum
Summary of significant transaction
Percentage of stake			29.90%
Gilead | Maximum | Filgotinib drug license
Summary of significant transaction
Future global development cost sharing ratio before predetermined level									50.00%
Gilead | Maximum | Europe | Filgotinib drug license
Summary of significant transaction
Percentage of future net sales from 2024									15.00%			15.00%
Warrant A | Gilead
Summary of significant transaction
Additional equity investment from warrant exercise | €		€ 368,000
Warrant B
Summary of significant transaction
Multiplier used to calculate exercise price per share			120.00%
Initial term of the warrant			5 years
Volume of days			30 days
Exercise Price | € / shares			€ 140.59
Warrant B | Gilead | Minimum
Summary of significant transaction
EGM Conducted period for approval of subsequent warrant B			57 months
Warrant B | Gilead | Maximum
Summary of significant transaction
EGM Conducted period for approval of subsequent warrant B			59 months

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Significant accounting policies (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Disclosure of detailed information about adoption of IFRS 16
Operating lease commitments disclosed as at December 31, 2018				€ 27,704
Current lease liabilities	€ 6,401	€ 5,826		0
Non-current lease liabilities	23,035	19,558		0
Change in accounting policy affected the statement of financial position
Property, plant and equipment (right-of-use assets)	68,264	40,707		23,137
Other current assets (prepaid expenses)	(11,953)	(9,138)		(8,244)
Total assets	5,717,731	6,068,609		1,439,496
Accumulated losses	(334,701)	(109,223)		(297,779)
Deferred income	(443,159)	(414,298)		(149,801)
Total equity and liabilities	€ 5,717,731	€ 6,068,609		1,439,496
IFRS 16
Disclosure of detailed information about adoption of IFRS 16
Weighted average incremental borrowing rate			1.55%
Operating lease commitments disclosed as at December 31, 2018				€ 27,704
Less : discounting effect using the lessee's incremental borrowing rate at the date of initial application			€ (1,223)
Less : other			(569)
Lease liability			25,912
Current lease liabilities			4,516
Non-current lease liabilities			21,396
Change in accounting policy affected the statement of financial position
Property, plant and equipment (right-of-use assets)			26,406
Other current assets (prepaid expenses)			(494)
Total assets			25,912
Accumulated losses			416
Lease liabilities (current and non-current)			25,912
Deferred income			(416)
Total equity and liabilities			€ 25,912

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Significant accounting policies - Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2020
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, 2020
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
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

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Significant accounting policies - Employee Benefits (Details)	12 Months Ended
	Dec. 31, 2020
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%
Term of deferrment for the remaining 50% bonus payment, Senior Management Bonus Scheme	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, 2020	Dec. 31, 2019
Significant accounting policies
Number of reportable segments	1	2

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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, 2020 EUR (€) item	Dec. 31, 2019 EUR (€)	Jul. 14, 2019 EUR (€)	Dec. 31, 2018 EUR (€)	Dec. 31, 2017 EUR (€)
Critical accounting estimates and judgments
Drug discovery platform revenue period		10 years
Deferred income	€ 2,809,133	€ 3,000,646		€ 149,801	€ 219,892
Collaboration agreement for filgotinib
Critical accounting estimates and judgments
Deferred income	€ 818,700
Gilead
Critical accounting estimates and judgments
Number of performance obligations exceeding one year | item	2
Period recognized to consideration paid for the platform	10 years
Deferred income	€ 4,286,852	4,012,108
Gilead | Collaboration agreement for filgotinib
Critical accounting estimates and judgments
Deferred income	€ 818,654	€ 780,261		€ 145,798	€ 213,981
Gilead | 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

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Segment information (Details) - segment	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Segment information
Number of reportable segments	1	2

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Segment information - Major customers (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Disclosure of major customers [line items]
Revenue	€ 478,053	€ 834,901	[1]	€ 278,666	[1]
United States of America
Disclosure of major customers [line items]
Revenue	472,445	793,873		116,680
Europe
Disclosure of major customers [line items]
Revenue	5,607	41,028		161,986
Gilead | United States of America
Disclosure of major customers [line items]
Revenue	€ 472,445	€ 793,873	[2]	€ 116,640
Percentage of entity's revenue	99.00%	95.00%	[2]	42.00%
Gilead | North America and Europe
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
Gilead | Europe
Disclosure of major customers [line items]
Revenue	€ 1,460	€ (4,570)		€ 7,793
Percentage of entity's revenue	0.00%	1.00%		3.00%
AbbVie | Europe
Disclosure of major customers [line items]
Revenue	€ (52)	€ 26,356		€ 89,936
Percentage of entity's revenue	0.00%	3.00%		32.00%
Novartis | Europe
Disclosure of major customers [line items]
Revenue	€ 4,125	€ 19,177		€ 55,218
Percentage of entity's revenue	1.00%	2.00%		20.00%
Les Laboratoires Servier | Europe
Disclosure of major customers [line items]
Revenue	€ 0	€ 0		€ 9,000
Percentage of entity's revenue	0.00%	0.00%		3.00%
Major customers
Disclosure of major customers [line items]
Revenue	€ 477,978	€ 834,836		€ 278,587
Percentage of entity's revenue	100.00%	100.00%		100.00%

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

[2] Following the contract amendment with Gilead in 2019, 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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Segment information - Non-current assets by location (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	€ 170,943	€ 90,979	[1]	€ 26,769	[1]
Belgium
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	113,524	57,007	[1]	13,134	[1]
France
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	18,398	18,102	[1]	5,413	[1]
The Netherlands
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	28,210	7,951	[1]	3,947	[1]
Croatia
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	0	6,182	[1]	3,661	[1]
Switzerland
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	7,668	1,057	[1]	519	[1]
Spain
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	2,755	0		0
Other Countries [Member]
Disclosure of geographical areas [line items]
Property, plant and equipment and intangible assets	€ 388,000	€ 681,000	[1]	€ 95,000	[1]

[1] 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 years ended December 31, 2019 and December 31, 2018. We elected to adjust the historical consolidated financial information presented in this disclosure note to reflect this change in presentation.

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Total revenues and other income - Disaggregation of revenues (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Total revenues and other income
Recognition of non-refundable upfront payments and license fees	€ 411,417	€ 812,058		€ 196,486
Milestones achieved	46,261	2,878		73,394
Reimbursement income	4,073	19,900		8,722
Other revenues	70	66		63
Commercial revenues	16,232	0		0
Total revenues	€ 478,053	€ 834,901	[1]	€ 278,666	[1]

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Total revenues and other income - Revenue by collaboration and by category of revenue (Details) € in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 EUR (€)		Dec. 31, 2018 EUR (€)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	€ 411,417		€ 812,058		€ 196,486
Milestones achieved	46,261		2,878		73,394
Reimbursement income	4,073		19,900		8,722
Other revenues	70		66		63
Total revenues	478,053		834,901	[1]	278,666	[1]
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)
Commercial revenues	16,232		0		0
Other
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income					16
Other revenues					63
Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Sale of goods	2
Royalties	16,227
Other commercial revenues	2
Point in time | Other
Disclosure of disaggregation of revenue from contracts with customers [line items]
Other revenues	70		66
Gilead collaboration agreement for ziritaxestat | Gilead | Point in time
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 | Gilead
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved	90,200	$ 105
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 filgotinib | Gilead | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	181,816		62,602		96,809
Milestones achieved	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			(245,900)
Collaboration agreement for filgotinib | Gilead | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved					27,623
Gilead collaboration agreement for drug discovery platform | Gilead | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	229,601		80,918
Collaboration agreement for CF | AbbVie | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees			1,569		52,176
Milestones achieved			24,065
Reimbursement income	(52)		723
Collaboration agreement for CF | AbbVie | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved					36,771
Reimbursement income					989
Servier collaboration agreement for osteoarthritis | Servier | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved					9,000
Collaboration agreement for MOR106 | Novartis | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income	€ 4,125		€ 19,177		7,718
Collaboration agreement for MOR106 | Novartis | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees					€ 47,500

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Total revenues and other income - Allocation of transaction price (Details) € in Thousands, $ in Millions						1 Months Ended	12 Months Ended
		Dec. 15, 2020 EUR (€)	Jul. 14, 2019 EUR (€)	Jul. 14, 2019 EUR (€)	Jul. 14, 2019 USD ($)	Jul. 31, 2018 EUR (€)	Dec. 31, 2020 EUR (€) yr item	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)	Dec. 31, 2017 EUR (€)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront payment received				€ 3,569,800	$ 3,950
Milestones achieved							€ 46,261	€ 2,878	€ 73,394
Allocation to performance obligations							€ 2,809,133	€ 3,000,646	€ 149,801	€ 219,892
Drug discovery platform revenue period								10 years
Global research and development collaboration term				10 years	10 years
Period over which to recognize the drug discovery platform revenue							101010 years
Maximum extension period for specific program							3 years
Filgotinib
Disclosure of disaggregation of revenue from contracts with customers [line items]
Number of performance obligations exceeding one year | yr							1
Subsequent warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations							€ 7,900	€ 16,200
Novartis
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront consideration						€ 95,000
Filgotinib agreement 2015
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront payment received								275,558
Impact initial valuation of share subscription								39,003
Total transaction price								314,561
Allocation to performance obligations								314,561
Filgotinib agreement 2015 | Filgotinib performance obligations
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations	[1]							314,561
Milestones achieved during 2015-2019
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved								104,171
Total transaction price								104,171
Allocation to performance obligations								104,171
Milestones achieved during 2015-2019 | Filgotinib performance obligations
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations	[1]							104,171
Option, License and Collaboration agreement (July 14, 2019)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront payment received			€ 3,569,815
Impact initial valuation of share subscription			85,601
Total transaction price			3,655,416
Allocation to performance obligations			3,655,416	€ 3,655,416
Option, License and Collaboration agreement (July 14, 2019) | Ziritaxestat
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			666,967	666,967
Option, License and Collaboration agreement (July 14, 2019) | Filgotinib performance obligations
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations	[1]		641,663	641,663
Option, License and Collaboration agreement (July 14, 2019) | Drug discovery platform (10 years)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations			2,284,747	2,284,747
Other movements in 2020
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved							90,192
Royalties							16,227
Total transaction price							106,419
Allocation to performance obligations							114,744
Other movements in 2020 | Subsequent warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities							8,325
Other movements in 2020 | Filgotinib performance obligations
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations	[1]						106,419
Other movements in 2020 | Drug discovery platform (10 years)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations							8,325
Filgotinib amendment (December 15, 2020)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront consideration		€ 160,000
Total transaction price		160,000
Allocation to performance obligations		160,000
Filgotinib amendment (December 15, 2020) | Filgotinib performance obligations
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations	[1]	160,000
Gilead
Disclosure of disaggregation of revenue from contracts with customers [line items]
Upfront payment received								3,845,373
Upfront consideration							4,005,373
Impact initial valuation of share subscription							124,604	124,604
Total transaction price							4,340,567	4,074,148
Allocation to performance obligations							€ 4,286,852	4,012,108
Number of performance obligations exceeding one year | item							2
Period recognized to consideration paid for the platform							10 years
Gilead | Warrant A
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities							€ 43,311	43,311
Gilead | Initial Warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities							2,545	2,545
Gilead | Subsequent warrant B
Disclosure of disaggregation of revenue from contracts with customers [line items]
Less : Warrants issuance liabilities							7,859	16,184
Fair value of the underlying warrants issuance liability							7,900
Gilead | Ziritaxestat
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations							666,967	666,967
Gilead | Filgotinib
Disclosure of disaggregation of revenue from contracts with customers [line items]
Royalties							16,200
Allocation to performance obligations		€ 160,000
Gilead | Filgotinib performance obligations
Disclosure of disaggregation of revenue from contracts with customers [line items]
Estimated significant financing component							55,300	44,500
Gilead | Drug discovery platform (10 years)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations							€ 2,293,072	2,284,747
Gilead | 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	€ 85,600
Gilead | Collaboration agreement for filgotinib
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved							€ 194,363	104,171
Royalties							16,227	0
Gilead | Collaboration agreement for filgotinib | Filgotinib performance obligations
Disclosure of disaggregation of revenue from contracts with customers [line items]
Allocation to performance obligations	[1]						€ 1,326,814	€ 1,060,395

[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, considering the effects of the amendment of December 15, 2020.

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Total revenues and other income - Schedule of the revenue recognition of upfront payments, license fees and milestone payments and the impact of the adoption of IFRS 15 (Details) € in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 EUR (€)		Dec. 31, 2018 EUR (€)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	€ 411,417		€ 812,058		€ 196,486
Milestones achieved	46,261		2,878		73,394
Reimbursement income	4,073		19,900		8,722
Other revenues	70		66		63
Total revenues	478,053		834,901	[1]	278,666	[1]
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)
Other
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income					16
Other revenues					63
Point in time | Other
Disclosure of disaggregation of revenue from contracts with customers [line items]
Other revenues	70		66
Gilead collaboration agreement for ziritaxestat | Gilead | Point in time
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 | Gilead
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved	90,200	$ 105
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 filgotinib | Gilead | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	181,816		62,602		96,809
Milestones achieved	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			(245,900)
Collaboration agreement for filgotinib | Gilead | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved					27,623
Gilead collaboration agreement for drug discovery platform | Gilead | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees	229,601		80,918
Collaboration agreement for CF | AbbVie | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees			1,569		52,176
Milestones achieved			24,065
Reimbursement income	(52)		723
Collaboration agreement for CF | AbbVie | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved					36,771
Reimbursement income					989
Collaboration agreement for MOR106 | Novartis | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income	€ 4,125		19,177		7,718
Collaboration agreement for MOR106 | Novartis | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees					47,500
Servier collaboration agreement for osteoarthritis | Servier | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved					€ 9,000
IFRS 15
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees			812,058
Milestones achieved			2,878
Reimbursement income			19,900
Other revenues			66
Total revenues			834,901
IFRS 15 | Other
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income
Other revenues			66
IFRS 15 | Collaboration agreement for filgotinib | Gilead | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees			62,602
Milestones achieved			(21,187)
IFRS 15 | Collaboration agreement for CF | AbbVie | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees			1,569
Milestones achieved			24,065
Reimbursement income			723
IFRS 15 | Collaboration agreement for MOR106 | Novartis | Over time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Reimbursement income			19,177
IFRS 15 | Collaboration agreement for MOR106 | Novartis | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Recognition of non-refundable upfront payments and license fees
IFRS 15 | Servier collaboration agreement for osteoarthritis | Servier | Point in time
Disclosure of disaggregation of revenue from contracts with customers [line items]
Milestones achieved

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Total revenues and other income - Summary of other income (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Total revenues and other income
Grant income	€ 5,452	€ 6,549		€ 1,609
R&D incentives	45,951	43,923		26,912
Other income	804	425		479
Total other income	€ 52,207	€ 50,896	[1]	€ 29,000	[1]

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Operating costs - Summary of research and development expenditure (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Expenses by nature [abstract]
Personnel costs	€ (161,509)	€ (118,875)		€ (75,819)
Subcontracting	(301,841)	(255,725)		(203,406)
Disposables and lab fees and premise costs	(22,349)	(19,573)		(20,967)
Depreciation	(11,707)	(9,330)		(4,846)
Professional fees	(12,692)	(1,834)		(262)
Other operating expenses	(13,570)	(14,753)		(10,922)
Total R&D expenses	€ (523,667)	€ (420,090)	[1]	€ (316,222)	[1]

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Operating costs - Summary of research and development expenditure by program (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Operating costs
Total research and development expenditure	€ (523,667)	€ (420,090)	[1]	€ (316,222)	[1]
Filgotinib program
Operating costs
Total research and development expenditure	(126,879)	(100,032)		(66,138)
Ziritaxestat program
Operating costs
Total research and development expenditure	(55,902)	(75,951)		(72,718)
OA program on GLPG1972
Operating costs
Total research and development expenditure	(22,966)	(19,958)		(15,751)
Toledo Program
Operating costs
Total research and development expenditure	(87,107)	(47,204)		(20,967)
CF program
Operating costs
Total research and development expenditure	(69)	(3,897)		(30,137)
AtD program on MOR106
Operating costs
Total research and development expenditure	(7,618)	(24,051)		(14,999)
Other programs
Operating costs
Total research and development expenditure	€ (223,126)	€ (148,997)		€ (95,512)

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Operating costs - Summary of sales and marketing expenses (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Expenses by nature [abstract]
Personnel costs	€ (31,727)	€ (7,558)		€ (2,282)
Depreciation	(140)	(61)
External outsourcing costs	(27,174)	(15,721)		(1,284)
Professional fees	(3,420)	(459)
Other operating expenses	(4,007)	(777)		(580)
Total sales and marketing expenses	€ (66,468)	€ (24,577)	[1]	€ (4,146)	[1]

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Operating costs - Summary of general and administrative expenses (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Expenses by nature [abstract]
Personnel costs	€ (70,110)	€ (51,204)		€ (24,740)
Depreciation	(5,147)	(1,421)		(449)
Legal and professional fees	(25,592)	(11,568)		(4,026)
Other operating expenses	(17,908)	(8,190)		(5,162)
Total general and administrative expenses	€ (118,757)	€ (72,382)	[1]	€ (34,377)	[1]

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Staff costs (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Staff costs
Wages and salaries	€ (139,681)	€ (113,660)	€ (57,237)
Social security costs	(26,471)	(14,566)	(10,290)
Pension costs	(7,337)	(4,715)	(2,994)
Costs related to subscription right plans	(79,959)	(38,297)	(26,757)
Other personnel costs	(9,897)	(6,399)	(5,564)
Total personnel costs	(263,345)	(177,636)	(102,842)
Costs for warrants granted	€ 79,959	€ 38,297	€ 26,757

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Fair value re-measurement of share subscription agreement and warrants granted to Gilead - Financial assets (Details) - EUR (€) € in Thousands				1 Months Ended	2 Months Ended		12 Months Ended
	Nov. 06, 2019	Nov. 06, 2019	Aug. 23, 2019	Aug. 23, 2019	Dec. 31, 2019		Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018		Oct. 22, 2019	Jul. 14, 2019
Disclosure of fair value measurement of assets [line items]
Upfront payments										€ 38,874
Share subscription increase								€ 960,087		296,188
Fair value of financial asset at inception related to the share subscription agreement with Gilead					€ 5,834,526	[1]	€ 5,357,438	5,834,526	[1]	1,307,922	[1]
Fair value of financial liability related to the share subscription agreement with Gilead					148,331	[1]	167,505	148,331	[1]	52,466	[1]
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead							3,034	(181,644)	[2]	0	[2]
Fair value of financial liability					148,331	[1]	167,505	148,331	[1]	52,466	[1]
Current financial liabilities related to the share subscription agreement					6,198		3,164	6,198		€ 0
Derivative financial instrument | Gilead | Level 3
Disclosure of fair value measurement of assets [line items]
Fair value of financial asset at inception related to the share subscription agreement with Gilead					0			0					€ 85,601
Fair value of financial liability related to the share subscription agreement with Gilead			€ (56,749)	€ (56,749)
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead				(142,350)
Fair value of financial liability			(56,749)	€ (56,749)
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							0	(142,350)
Fair value re-measurement of the financial instrument related to the issuance of warrant A | 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							0	(35,642)
Fair value re-measurement of the financial instrument related to the issuance of warrant A | Gilead | Warrant A
Disclosure of fair value measurement of assets [line items]
Fair value of financial liability related to the share subscription agreement with Gilead					0			0				€ (43,311)
Change in fair value related to the share subscription agreement and warrants with/granted to Gilead	€ (35,642)
Fair value of financial liability					0			0				(43,311)
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							3,034	(3,653)
Fair value re-measurement of the financial instrument related to the issuance of initial warrant B | Gilead | Warrant B
Disclosure of fair value measurement of assets [line items]
Fair value of financial liability related to the share subscription agreement with Gilead					(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)		3,034
Fair value of financial liability					€ (6,198)		€ (3,164)	€ (6,198)				€ (2,545)

[1] The historical consolidated financial information for 2019 and 2018 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.

[2] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Other financial income / expenses (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Other financial income:
Interest on bank deposit	€ 10,030	€ 14,305		€ 5,217
Effect of discounting long term R&D incentives receivables	93	93		199
Currency exchange gain	4,697	775		10,978
Fair value gain on financial assets held at fair value through profit or loss	2,397	5,355		1,203
Fair value gain on current financial investments	0	611		0
Gain upon sale of financial assets held at fair value through profit or loss	0	2		667
Other finance income	1,450	248		0
Total other financial income	18,667	21,389	[1]	18,264	[1]
Other financial expenses:
Interest expenses	(9,389)	(1,268)		(780)
Effect of discounting long term deferred income	(16,278)	(6,900)		0
Currency exchange loss	(110,416)	(47,720)		(1,057)
Loss upon sale of financial assets held at fair value through profit or loss	(88)	0		0
Fair value loss on current financial investments	(15,901)	(3,700)		0
Other finance charges	(773)	(380)		(764)
Total other financial expense	(152,844)	(59,968)	[1]	(2,602)	[1]
Total net other financial expense (-)/ income	€ (134,177)	€ (38,579)		€ 15,663

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Income Taxes - Summary of income tax recognized (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Income Taxes
Current tax	€ (1,069)	€ (1,372)		€ (584)
Deferred tax	(157)	1,537		(238)
Income taxes	€ (1,226)	€ 165	[1]	€ (822)	[1]

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Income Taxes - Schedule of tax liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes
Current tax payable	€ 1,248	€ 2,037	€ 1,175
Total tax liabilities	€ 1,248	€ 2,037	€ 1,175

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Income Taxes - Summary of income tax reconciliation (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Income Taxes
Income/loss (-) before tax	€ (309,775)	€ 148,525	[1]	€ (31,417)	[1]
Income tax debit / credit (-), calculated using the Belgian statutory tax rate on the accounting income / loss (-) before tax (theoretical)	(77,444)	43,934		(9,293)
Tax expenses/income (-) in statement of operations (effective)	1,226	(165)	[1]	822	[1]
Difference in tax expense / income to explain	78,670	(44,097)		10,116
Effect of tax rates in other jurisdictions	184	960		599
Effect of non taxable revenues	(10,196)	(13,079)		(11,547)
Effect of share based payment expenses without tax impact	19,990	10,318		7,530
Effect of expenses/income (-) not subject to tax	(639)	53,394		175
Effect of non tax deductible expenses	1,053	724		914
Effect of recognition of previously non recognized deferred tax assets	(475)	(2,286)		(532)
Effect of tax losses (utilized) reversed	(150)	(136)		(150)
Effect of under or over provision in prior periods	(25)	30		0
Effect of non recognition of deferred tax assets	69,141	47,413		13,127
Effect of derecognition of previously recognized deferred tax assets	157	0		0
Effect of use of investment deduction	(370)	0		0
Effect of use of IID	0	(141,435)		0
Total explanations	€ 78,670	€ (44,097)		€ 10,116

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

XML

Income Taxes - Narrative (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
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%	29.58%	29.58%

XML

Income/loss (-) per share (Details) - EUR (€) € / shares in Units, € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Income/loss (-) per share: Basic
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€ (305,436)	€ 149,845		€ (29,259)
Weighted average number of shares for the purpose of basic income/loss (-) per share	65,075	57,614		52,113
Basic income/loss (-) per share	€ (4.69)	€ 2.60	[1]	€ (0.56)	[1]
Income/loss per share: Diluted
Net income/loss (-) attributable to owners of the parent (Euro, in thousands)	€ (305,436)	€ 149,845		€ (29,259)
Weighted average number of shares for the purpose of diluted income/loss (-) per share	65,075	57,614		52,113
Number of dilutive potential ordinary shares		2,498
Diluted income/loss (-) per share	€ (4.69)	€ 2.49	[1]	€ (0.56)	[1]

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

XML

Intangible assets (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about intangible assets [line items]
Beginning balance	€ 24,927	€ 3,632
Ending balance	67,565	24,927	€ 3,632
Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	35,099	11,832	16,082
Additions	48,793	23,300	3,325
Sales and disposals	(17)	(64)	(7,650)
Reclassifications to assets held for sale	(197)
Translation differences	(144)	31	74
Ending balance	83,534	35,099	11,832
Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	(10,173)	(8,200)	(13,587)
Amortization	6,130	2,006	1,107
Impairment			1,083
Sales and disposals	17	63	7,650
Reclassifications to assets held for sale	176
Translation differences	(142)	31	74
Ending balance	(15,968)	(10,173)	(8,200)
Software and databases
Disclosure of detailed information about intangible assets [line items]
Beginning balance	6,507	1,862
Ending balance	13,683	6,507	1,862
Software and databases | Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	14,541	9,111	7,496
Additions	9,494	5,463	1,561
Sales and disposals	(17)	(64)	(20)
Reclassifications to assets held for sale	(159)
Translation differences	(143)	31	74
Ending balance	23,717	14,541	9,111
Software and databases | Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	(8,034)	(7,250)	(6,514)
Amortization	2,303	816	681
Sales and disposals	17	63	20
Reclassifications to assets held for sale	143
Translation differences	(142)	31	74
Ending balance	(10,034)	(8,034)	(7,250)
Brands, licenses, patents and know-how
Disclosure of detailed information about intangible assets [line items]
Beginning balance	3,546	1,771
Ending balance	40,549	3,546	1,771
Brands, licenses, patents and know-how | Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	5,172	2,719	8,586
Additions	39,299	2,453	1,763
Sales and disposals			(7,630)
Reclassifications to assets held for sale	(38)
Translation differences	(1)
Ending balance	44,432	5,172	2,719
Brands, licenses, patents and know-how | Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	(1,626)	(949)	(7,070)
Amortization	2,289	678	426
Impairment			1,083
Sales and disposals			7,630
Reclassifications to assets held for sale	33
Ending balance	(3,883)	(1,626)	(949)
Contract costs
Disclosure of detailed information about intangible assets [line items]
Beginning balance	14,872	0
Ending balance	13,334	14,872	0
Contract costs | Acquisition value
Disclosure of detailed information about intangible assets [line items]
Beginning balance	15,384	0	0
Additions		15,384
Ending balance	15,384	15,384	0
Contract costs | Amortization and impairment
Disclosure of detailed information about intangible assets [line items]
Beginning balance	(512)	0	0
Amortization	1,538	512
Ending balance	€ (2,050)	€ (512)	€ 0

XML

Property, plant and equipment - Fully Owned (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	€ 40,707	€ 23,137
Ending balance	68,264	40,707	€ 23,137
Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	71,823	51,321	42,195
Additions	38,664	22,380	10,392
Sales and disposals	(1,228)	(1,618)	(1,311)
Reclassifications	0	0	0
Reclassifications to right of use		(251)
Reclassifications to assets held for sale	(10,110)
Translation differences	(178)	(8)	46
Ending balance	98,972	71,823	51,321
Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(31,117)	(28,184)	(25,502)
Depreciation	5,666	4,818	3,974
Sales and disposals	1,186	1,620	1,310
Reclassifications	0
Reclassifications to right of use		(251)
Reclassifications to assets held for sale	4,814
Translation differences	(75)	(15)	18
Ending balance	(30,708)	(31,117)	(28,184)
Land and leasehold improvements
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	2,204	2,325
Ending balance	13,011	2,204	2,325
Land and leasehold improvements | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	5,284	5,011	4,736
Additions	885	273	275
Sales and disposals	(51)
Reclassifications	10,625
Reclassifications to assets held for sale	(2)
Translation differences	(2)
Ending balance	16,739	5,284	5,011
Land and leasehold improvements | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(3,080)	(2,686)	(2,342)
Depreciation	654	394	344
Sales and disposals	51
Reclassifications	46
Translation differences	(1)
Ending balance	(3,728)	(3,080)	(2,686)
Installation and machinery
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	18,770	14,628
Ending balance	15,257	18,770	14,628
Installation and machinery | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	44,655	38,031	33,060
Additions	3,737	6,382	4,674
Sales and disposals	(1,096)	(1,521)	(486)
Reclassifications	(623)	1,792	753
Reclassifications to assets held for sale	(8,938)
Translation differences	(127)	(30)	29
Ending balance	37,607	44,655	38,031
Installation and machinery | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(25,885)	(23,403)	(20,495)
Depreciation	3,587	4,018	3,377
Sales and disposals	1,058	1,521	485
Reclassifications	(1,675)
Reclassifications to assets held for sale	4,327
Translation differences	(61)	(15)	16
Ending balance	(22,350)	(25,885)	(23,403)
Furniture, fixtures & vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	1,909	1,632
Ending balance	2,724	1,909	1,632
Furniture, fixtures & vehicles | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	4,028	3,452	3,209
Additions	1,824	649	1,039
Sales and disposals	(81)	(97)	(826)
Reclassifications	2,084	3	13
Reclassifications to assets held for sale	(484)
Translation differences	(19)	22	16
Ending balance	7,352	4,028	3,452
Furniture, fixtures & vehicles | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(2,119)	(1,819)	(2,407)
Depreciation	1,418	399	236
Sales and disposals	77	99	826
Reclassifications	1,629
Reclassifications to assets held for sale	448
Translation differences	(13)		2
Ending balance	(4,628)	(2,119)	(1,819)
Other tangible assets
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	17,825	4,552
Ending balance	37,273	17,825	4,552
Other tangible assets | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	17,856	4,827	1,189
Additions	32,218	15,076	4,404
Reclassifications	(12,086)	(1,795)	(766)
Reclassifications to right of use		(251)
Reclassifications to assets held for sale	(686)
Translation differences	(30)
Ending balance	37,273	17,856	4,827
Other tangible assets | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(31)	(275)	(258)
Depreciation	7	7	17
Reclassifications to right of use		(251)
Reclassifications to assets held for sale	39
Ending balance	€ 0	€ (31)	€ (275)

XML

Property, plant and equipment - Right of Use (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	€ 25,345	€ 0
Ending balance	35,113	25,345
Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	31,225	0
Additions	21,459	4,530
Sales and disposals	(167)
Reclassifications to right of use		251
Reclassifications to assets held for sale	(6,202)
Translation differences	(90)	38
Ending balance	46,225	31,225
Acquisition value | Restated equity (modified retrospective application IFRS)
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		26,406
Acquisition value | IFRS 16
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		26,406
Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(5,879)	0
Depreciation	6,883	5,624
Sales and disposals	(167)
Reclassifications to right of use		251
Reclassifications to assets held for sale	(1,448)
Translation differences	(36)	4
Ending balance	(11,111)	(5,879)
Land and building
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	22,694
Ending balance	31,027	22,694
Land and building | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	27,364	0
Additions	18,341	3,270
Reclassifications to assets held for sale	(5,940)
Translation differences	(88)	38
Ending balance	39,678	27,364
Land and building | Acquisition value | Restated equity (modified retrospective application IFRS)
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		24,056
Land and building | Acquisition value | IFRS 16
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		24,056
Land and building | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(4,670)	0
Depreciation	5,350	4,666
Reclassifications to assets held for sale	(1,334)
Translation differences	(36)	4
Ending balance	(8,651)	(4,670)
Installation and machinery
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	212
Ending balance	270	212
Installation and machinery | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	554	0
Additions	186	84
Sales and disposals	(6)
Reclassifications to right of use		251
Translation differences	0
Ending balance	734	554
Installation and machinery | Acquisition value | Restated equity (modified retrospective application IFRS)
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		219
Installation and machinery | Acquisition value | IFRS 16
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		219
Installation and machinery | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(342)	0
Depreciation	128	91
Sales and disposals	(6)
Reclassifications to right of use		251
Ending balance	(464)	(342)
Furniture, fixtures & vehicles
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	2,440
Ending balance	3,817	2,440
Furniture, fixtures & vehicles | Acquisition value
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	3,307	0
Additions	2,932	1,176
Sales and disposals	(161)
Reclassifications to assets held for sale	(263)
Translation differences	(3)
Ending balance	5,812	3,307
Furniture, fixtures & vehicles | Acquisition value | Restated equity (modified retrospective application IFRS)
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		2,130
Furniture, fixtures & vehicles | Acquisition value | IFRS 16
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		2,130
Furniture, fixtures & vehicles | Depreciations and impairment
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance	(867)	0
Depreciation	1,405	867
Sales and disposals	(161)
Reclassifications to assets held for sale	(115)
Translation differences	(1)
Ending balance	€ (1,995)	€ (867)

XML

Property, plant and equipment - Carrying Amount (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Property, plant and equipment
Property, plant and equipment fully owned	€ 68,264	€ 40,707		€ 23,137
Right-of-use assets	35,113	25,345	€ 26,400	0
Total property, plant and equipment	€ 103,378	€ 66,052		€ 23,137

XML

Other non-current assets - Summary (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other non-current assets
Non-current restricted cash	€ 1,482	€ 1,418	€ 1,276
Financial assets held at fair value through profit or loss	8,951	11,275	6,000
Other non-current assets	910	1,399	643
Total other non-current assets	11,343	14,091	€ 7,919
Belgium
Other non-current assets
Non-current restricted cash	1,000	900
The Netherlands
Other non-current assets
Non-current restricted cash	€ 500	€ 500

XML

Other non-current assets - Financial assets held at fair value through profit or loss (Details) - Equity instruments - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of fair value remeasurement
Costs at January 1,	€ 4,736	€ 4,818	€ 2,373
Acquisitions of the year	1,994	0	4,736
Disposals of the year	(2,820)	(82)	(2,291)
Costs at December 31,	3,910	4,736	4,818
Net book value at December 31,	8,951	11,275	6,000
Level 1
Reconciliation of fair value remeasurement
Fair value adjustment at January 1	6,539	1,182	(619)
Cancellation of fair value adjustment following disposal	(3,894)	2	598
Fair value adjustment of the year	2,397	5,355	1,203
Fair value adjustment at December 31,	€ 5,042	€ 6,539	€ 1,182

XML

Research and Development incentives receivables - Current and non-current (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	€ 111,624	€ 93,407	€ 73,443
Current R&D incentives receivables	24,104	21,949	11,203
Total R&D incentives receivables	135,728	€ 115,356	€ 84,646
France
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	33,856
Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	€ 77,768

XML

Research and Development incentives receivables - Maturities (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	€ 111,624	€ 93,407	€ 73,443
France
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	33,856
Belgium
Disclosure of financial assets [line items]
Non-current R&D incentives receivables-discounted value	77,768
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	16,870
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	10,223
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	6,647
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	20,340
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	11,911
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	8,429
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	22,800
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	11,722
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	11,078
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	13,716
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	13,716
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	37,898
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	€ 37,898

XML

Trade and other receivables and other current assets (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Trade and other receivables and other current assets
Non-current trade receivables	€ 50,000	€ 0	€ 0
Trade receivables	134,632	39,603	9,206
Prepayments	219	292	142
Other receivables	13,568	14,114	9,261
Trade and other receivables	148,418	54,009	18,609
Inventories	355	255	276
Accrued income	1,096	4,443	3,863
Deferred charges	10,502	4,439	4,104
Other current assets	11,953	9,138	8,244
Total trade and other receivables & other current assets	€ 210,371	€ 63,147	€ 26,852

XML

Current financial investments (Details) € in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Current financial investments
Current financial investments	€ 3,026,278		€ 3,919,216	€ 0
Treasury bills	1,454,400
Money market funds	€ 1,571,900
Current financial investments held in USD | $		$ 524.6

XML

Cash and cash equivalents (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash and cash equivalents.
Cash at banks	€ 1,239,993	€ 907,939	€ 358,016
Term deposits	895,194	953,677	733,537
Money market funds	0	0	199,243
Total cash and cash equivalents	2,135,187	1,861,616	1,290,796
Cash and cash equivalents classified as assets held for sale	7,884	0	0
Total cash and cash equivalents	€ 2,143,071	€ 1,861,616	€ 1,290,796	€ 1,151,211

XML

Cash and cash equivalents - Narrative (Details) € in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Cash and cash equivalents.
Term deposits | €	€ 895,194		€ 953,677	€ 733,537
Cash and cash equivalents held in USD | $		$ 894.3
Maturity Period	3 months

XML

Share capital - Reconciliation (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of classes of share capital [line items]
Balance at beginning of period	€ 2,875,658	€ 1,214,249	€ 1,011,983
Costs of capital increase		(4,447)	(15,964)
Aggregate share capital	353,819	349,789	294,600	€ 250,187
Balance at end of period	2,670,355	2,875,658	1,214,249	1,011,983
Share capital.
Disclosure of classes of share capital [line items]
Balance at beginning of period	287,282	236,540	233,414
Share capital increase	4,031	55,189	19,090
Costs of capital increase	0	(4,447)	(15,964)
Aggregate share capital	353,819	349,789	294,600
Costs of capital increase (accumulated)	(62,507)	(62,507)	(58,060)
Balance at end of period	€ 291,312	€ 287,282	€ 236,540	€ 233,414

XML

Share capital - History (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
History of the share capital
Aggregate number of shares after transaction	65,412	64,667	54,466	46,256
Aggregate share capital after transaction	€ 353,819	€ 349,789	€ 294,600	€ 250,187
March 20, 2018
History of the share capital
Share capital increase warrants			€ 1,613
Number of shares issued			298
June 20, 2018
History of the share capital
Share capital increase warrants			€ 556
Number of shares issued			103
September 17, 2018
History of the share capital
Share capital increase new shares			€ 16,021
Number of shares issued			2,961
October 3, 2018
History of the share capital
Share capital increase warrants			€ 733
Number of shares issued			135
November 23, 2018
History of the share capital
Share capital increase warrants			€ 167
Number of shares issued			31
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 18, 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
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 18, 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

XML

Share capital - History - Narrative (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share capital
Aggregate share capital	€ 353,819	€ 349,789	€ 294,600	€ 250,187
Aggregate number of shares after transaction	65,412	64,667	54,466	46,256
Number of shares	65,411,767	64,666,802	54,465,421	50,936,778

XML

Share capital - Capital increase (Details) € / shares in Units, € in Thousands	12 Months Ended
	Dec. 31, 2020 EUR (€) shares € / shares	Dec. 31, 2019 EUR (€) shares € / shares	Dec. 31, 2018 EUR (€) shares € / shares	Dec. 31, 2017 EUR (€)
Disclosure of classes of share capital [line items]
Balance at beginning of period, shares | shares	64,666,802	54,465,421	50,936,778
Balance at beginning of period	€ 2,875,658	€ 1,214,249	€ 1,011,983
Share capital	291,312	287,282	236,540
Net issue of equity		960,087	296,188
Share premium	2,727,840	2,703,583	1,277,780
Exercise of warrants	€ 28,288	€ 17,167	€ 7,657
Average exercise price warrants | € / shares	€ 38.0	€ 22.8	€ 13.5
Balance at end of period, shares | shares	65,411,767	64,666,802	54,465,421
Balance at end of period	€ 2,670,355	€ 2,875,658	€ 1,214,249
Accounting par value of shares | € / shares	€ 5.41
March 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares			298,184
Average exercise price warrants | € / shares			€ 13.16
Closing share price on date of capital increase | € / shares			€ 83.72
June 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares			102,801
Average exercise price warrants | € / shares			€ 13.01
Closing share price on date of capital increase | € / shares			€ 85.00
October 03, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares			135,485
Average exercise price warrants | € / shares			€ 14.86
Closing share price on date of capital increase | € / shares			€ 94.32
November 23, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares			30,800
Average exercise price warrants | € / shares			€ 12.40
Closing share price on date of capital increase | € / shares			€ 88.90
March 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares		149,370
Average exercise price warrants | € / shares		€ 23.30
Closing share price on date of capital increase | € / shares		€ 90.32
June 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares		208,310
Average exercise price warrants | € / shares		€ 20.76
Closing share price on date of capital increase | € / shares		€ 113.55
August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Issue of shares | shares		6,828,985
Closing share price on date of capital increase | € / shares		€ 148.90
September 19, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares		301,745
Average exercise price warrants | € / shares		€ 22.12
Closing share price on date of capital increase | € / shares		€ 145.25
November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares		2,617,791
Average exercise price warrants | € / shares		€ 140.59
Closing share price on date of capital increase | € / shares		€ 170.75
November 25, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares		95,180
Average exercise price warrants | € / shares		€ 28.23
Closing share price on date of capital increase | € / shares		€ 172.95
March 17, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares	152,220
Average exercise price warrants | € / shares	€ 35.18
Closing share price on date of capital increase | € / shares	€ 141.40
May 28, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares	435,540
Average exercise price warrants | € / shares	€ 41.13
Closing share price on date of capital increase | € / shares	€ 186.60
September 18, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares	86,280
Average exercise price warrants | € / shares	€ 27.85
Closing share price on date of capital increase | € / shares	€ 117.70
December 4, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares	70,925
Average exercise price warrants | € / shares	€ 36.88
Closing share price on date of capital increase | € / shares	€ 100.30
Share capital.
Disclosure of classes of share capital [line items]
Balance at beginning of period	€ 287,282	€ 236,540	€ 233,414
Share capital	291,312	287,282	236,540	€ 233,414
Net issue of equity		36,945	16,021
Exercise of warrants	4,031	4,082	3,069
Underwriter discounts and offering expenses (paid)			(15,964)
Balance at end of period	291,312	287,282	236,540
Share capital. | March 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			1,613
Share capital. | June 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			556
Share capital. | October 03, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			733
Share capital. | November 23, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			167
Share capital. | March 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		808
Share capital. | June 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		1,127
Share capital. | August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity		32,498
Underwriter discounts and offering expenses (paid)		(4,447)
Share capital. | September 19, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		1,632
Share capital. | November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants		14,162
Share capital. | November 25, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		515
Share capital. | March 17, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	824
Share capital. | May 28, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	2,356
Share capital. | September 18, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	467
Share capital. | December 4, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	384
Share premium account
Disclosure of classes of share capital [line items]
Balance at beginning of period	2,703,583	1,277,780	993,025
Net issue of equity		923,142	280,167
Share premium	2,727,840	2,703,583	1,277,780	€ 993,025
Exercise of warrants	24,257	13,085	4,588
Balance at end of period	2,727,840	2,703,583	1,277,780
Share premium account | March 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			2,311
Share premium account | June 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			781
Share premium account | October 03, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			1,281
Share premium account | November 23, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			215
Share premium account | March 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		2,673
Share premium account | June 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		3,198
Share premium account | August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity		979,891
Derecognition of Financial Liability		56,749
Share premium account | September 19, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		5,043
Share premium account | November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants		432,826
Derecognition of Financial Liability		78,953
Share premium account | November 25, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		2,172
Share premium account | March 17, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	4,531
Share premium account | May 28, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	15,558
Share premium account | September 18, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	1,936
Share premium account | December 4, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	2,232
Share capital and share premium
Disclosure of classes of share capital [line items]
Balance at beginning of period	2,990,865	1,514,320	1,226,439
Underwriter discounts and offering expenses (paid)			(15,964)
Balance at end of period	3,019,153	2,990,865	1,514,320
Share capital and share premium | March 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			3,924
Share capital and share premium | June 20, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			1,337
Share capital and share premium | October 03, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			2,014
Share capital and share premium | November 23, 2018 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants			€ 382
Share capital and share premium | March 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		3,481
Share capital and share premium | June 20, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		4,325
Share capital and share premium | August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity		1,012,389
Underwriter discounts and offering expenses (paid)		(4,447)
Derecognition of Financial Liability		56,749
Share capital and share premium | September 19, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		6,675
Share capital and share premium | November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants		446,988
Derecognition of Financial Liability		78,953
Share capital and share premium | November 25, 2019 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants		2,687
Share capital and share premium | March 17, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	5,355
Share capital and share premium | May 28, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	17,914
Share capital and share premium | September 18, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	2,403
Share capital and share premium | December 4, 2020 : exercise of warrants
Disclosure of classes of share capital [line items]
Exercise of warrants	€ 2,616
Ordinary Shares
Disclosure of classes of share capital [line items]
Accounting par value of shares | € / shares	€ 5.41
Ordinary Shares | Share capital. | August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity		36,945
Ordinary Shares | Share premium account | August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity		923,142
Ordinary Shares | Share capital and share premium | August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Net issue of equity		€ 960,087
American Depositary Receipts
Disclosure of classes of share capital [line items]
Issue of shares | shares			2,961,373
American Depositary Receipts | August 23, 2019 : share subscription by Gilead | Gilead
Disclosure of classes of share capital [line items]
Issue of shares | shares		6,828,985
American Depositary Receipts | Share capital.
Disclosure of classes of share capital [line items]
Net issue of equity			€ 16,021
American Depositary Receipts | Share premium account
Disclosure of classes of share capital [line items]
Net issue of equity			280,167
American Depositary Receipts | Share capital and share premium
Disclosure of classes of share capital [line items]
Net issue of equity			€ 296,188
U.S. public offering
Disclosure of classes of share capital [line items]
Issue of shares | shares			2,961,373
Closing share price on date of capital increase | € / shares			€ 99.68
U.S. public offering | Share capital.
Disclosure of classes of share capital [line items]
Net issue of equity			€ 57
U.S. public offering | Share premium account
Disclosure of classes of share capital [line items]
Net issue of equity			280,167
U.S. public offering | Share capital and share premium
Disclosure of classes of share capital [line items]
Net issue of equity			€ 280,224
Warrants | November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants, shares | shares		2,617,791
Warrants | Share capital. | November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants		€ 14,162
Warrants | Share premium account | November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants		353,873
Warrants | Share capital and share premium | November 6, 2019 : exercise of warrant A by Gilead | Gilead
Disclosure of classes of share capital [line items]
Exercise of warrants		€ 368,035

XML

Share capital - Other information (Details) - EUR (€)			12 Months Ended
	Oct. 22, 2019	Apr. 25, 2017	Dec. 31, 2020
Disclosure of classes of share capital [line items]
Authorization period			5 years
Minimum
Disclosure of classes of share capital [line items]
Percentage of share capital		20.00%
Maximum
Disclosure of classes of share capital [line items]
Percentage of share capital		33.00%
Ordinary Shares
Disclosure of classes of share capital [line items]
Authorized capital, remained available under the general part			€ 55,264,659,690
Authorized capital, remained available under the specific part			€ 13,717,929,800
General authorization of share capital
Disclosure of classes of share capital [line items]
Authorization period	5 years
Authorized capital, approved	€ 67,022,402,040.00
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		€ 82,561,764,930

XML

Deferred tax - Summary of deferred tax assets and liabilities (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of analysis of single amount of discontinued operations [line items]
Deferred tax assets	€ 4,475	€ 4,205	€ 2,514
Deferred tax assets unrecognized	365,639
Deferred taxes in the consolidated statement of operations	(157)	1,537	(238)
Tax benefit arising from previously unrecognized tax assets used to reduce deferred tax expense (+)	581	1,537	528
Deferred tax expenses relating to temporary differences	(44)	0	0
Deferred tax expenses relating to use or derecognition of previously recognized deferred tax assets	€ (695)	0	(766)
Aggregate continuing and discontinued operations [member]
Disclosure of analysis of single amount of discontinued operations [line items]
Deferred tax assets		4,205	2,514
Deferred tax assets unrecognized		€ 289,833	€ 223,377

XML

Deferred tax - Narrative (Details)	12 Months Ended
	Dec. 31, 2020 EUR (€) subsidiary	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Total amount of tax attributes and deductible temporary differences	€ 1,485,800,000	€ 1,179,000,000.0
Tax losses carried forward and deductible temporary differences	1,229,300,000	953,300,000	€ 688,700,000
Tax losses carried forward	478,600,000
Deferred tax assets	€ 4,475,000	4,205,000	2,514,000
Number of subsidiaries operating on cost-plus basis | subsidiary	4
Expiry between 2020 and 2028
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Tax losses carried forward	€ 2,700,000
Belgium. | Galapagos NV
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Tax losses carried forward	416,600,000
Investment deduction carried forward to be offset against future income | Galapagos NV
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Investment deduction	1,000,000	1,000,000	1,000,000
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]
Investment deduction	8,400,000
Innovation Income Deduction Dividend Received Deduction and Investment Deduction
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Investment deduction	256,500	225,700	196,400
Due To Innovation Income Deduction [Member] | 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	€ 247,200,000	€ 224,700,000	€ 195,400,000

XML

Lease liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lease liabilities
Less amount due for settlement within 12 months	€ 6,401	€ 5,826	€ 0
Amount due for settlement after 12 months	23,035	19,558	0
IFRS 16
Lease liabilities
Lease payments	30,385	26,353	0
Present value of lease payments		25,384	0
Less future finance charges	949	969
Lease liability	29,436	25,384	0
Less amount due for settlement within 12 months	6,401	5,826
Amount due for settlement after 12 months	23,035	19,558	€ 0
IFRS 16 | Less than 1 year
Lease liabilities
Lease payments	6,772	6,189
Present value of lease payments	6,401	5,826
IFRS 16 | In the second to fifth years inclusive
Lease liabilities
Lease payments	20,399	16,320
Present value of lease payments	19,833	15,783
IFRS 16 | More than 5 years
Lease liabilities
Lease payments	3,214	3,844
Present value of lease payments	€ 3,201	€ 3,775

XML

Trade and other liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Trade and other liabilities
Trade and other liabilities.	€ 171,316	€ 142,510	€ 68,038
Other non-current liabilities	8,096	6,989	1,578
Accrued charges	1,070	923	890
Total trade and other liabilities	€ 180,482	€ 150,422	€ 70,506

XML

Deferred income (Details) - EUR (€)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred income related to contracts
Deferred Income	€ 2,809,133,000	€ 3,000,646,000	€ 149,801,000	€ 219,892,000
Non-current deferred income	2,365,974,000	2,586,348,000	0
Increase in deferred income (contract liabilities)	(207,787,000)	2,804,202,000	(153,312,000)
IFRS 15
Deferred income related to contracts
Deferred Income				303,112,000
Fee for services segment
Deferred income related to contracts
Deferred Income		362,000	471,000	248,000
Fee for services segment | IFRS 15
Deferred income related to contracts
Deferred Income				248,000
Gilead
Deferred income related to contracts
Deferred Income	4,286,852,000	4,012,108,000
Collaboration agreement for filgotinib
Deferred income related to contracts
Deferred Income	818,700,000
Collaboration agreement for filgotinib | Gilead
Deferred income related to contracts
Deferred Income	818,654,000	780,261,000	€ 145,798,000	213,981,000
Non-current deferred income	604,900,000	594,700,000
Collaboration agreement for filgotinib | Gilead | IFRS 15
Deferred income related to contracts
Deferred Income				€ 257,814,000
Gilead collaboration agreement for drug discovery platform
Deferred income related to contracts
Deferred Income	1,990,400,000	2,220,000,000.0
Non-current deferred income	1,761,100	1,991,600
Gilead collaboration agreement for drug discovery platform | Gilead
Deferred income related to contracts
Deferred Income	1,990,412,000	2,220,013,000
Subsequent warrant B
Deferred income related to contracts
Deferred Income	7,900,000	€ 16,200,000
Grants
Deferred income related to contracts
Deferred Income	€ 100

XML

Deferred income - Movement in the non-current and current deferred income (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	€ 3,000,646	€ 149,801	€ 219,892
Upfront payments	160,000
Upfront/license fees received			38,874
Upfront received and impact of initial valuation of share subscription		3,655,416
Milestones received	90,192	49,727	20,965
Significant financing component	16,278	6,900
Revenue recognition of upfront/license fees	(411,417)	(1,009,663)	(148,985)
Revenue recognition of milestones	(46,261)	(51,156)	(64,394)
Catch-up effect on closing date (1)		245,883
Other movements	(305)	(46,262)	229
Deferred income, ending balance	2,809,133	3,000,646	149,801
Gilead
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	4,012,108
Deferred income, ending balance	4,286,852	4,012,108
Other
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	10	308	300
Other movements	57	(297)	7
Deferred income, ending balance	67	10	308
IFRS 15
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance			303,112
Reclassified from equity following adoption of IFRS 15				€ 83,220
IFRS 15 | Other
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance			300
Fee for services segment
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	362	471	248
Other movements	(362)	(109)	222
Deferred income, ending balance		362	471
Fee for services segment | IFRS 15
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance			248
Collaboration agreement for filgotinib
Disclosure of Deferred Income [Line Items]
Deferred income, ending balance	818,700
Collaboration agreement for filgotinib | Gilead
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	780,261	145,798	213,981
Upfront payments	160,000
Upfront received and impact of initial valuation of share subscription		641,663
Milestones received	90,192	27,317	12,417
Significant financing component	16,278	6,900
Revenue recognition of upfront/license fees	(181,816)	(260,207)	(96,809)
Revenue recognition of milestones	(46,261)	(27,092)	(27,623)
Catch-up effect on closing date (1)		245,883
Deferred income, ending balance	818,654	780,261	145,798
Collaboration agreement for filgotinib | IFRS 15 | Gilead
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance			257,814
Reclassified from equity following adoption of IFRS 15				43,832
Gilead collaboration agreement for ziritaxestat | Gilead
Disclosure of Deferred Income [Line Items]
Upfront received and impact of initial valuation of share subscription		666,967
Revenue recognition of upfront/license fees		(666,967)
Gilead collaboration agreement for drug discovery platform
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	2,220,000
Deferred income, ending balance	1,990,400	2,220,000
Gilead collaboration agreement for drug discovery platform | Gilead
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance	2,220,013
Upfront received and impact of initial valuation of share subscription		2,346,787
Revenue recognition of upfront/license fees	(229,601)	(80,918)
Other movements		(45,856)
Deferred income, ending balance	€ 1,990,412	2,220,013
AbbVie collaboration agreement for CF | AbbVie
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance		3,224
Upfront/license fees received			38,874
Milestones received		22,410	8,548
Revenue recognition of upfront/license fees		(1,570)	(52,176)
Revenue recognition of milestones		€ (24,064)	(36,771)
Deferred income, ending balance			3,224
AbbVie collaboration agreement for CF | IFRS 15 | AbbVie
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance			44,749
Reclassified from equity following adoption of IFRS 15				44,749
Servier collaboration agreement for osteoarthritis | Servier
Disclosure of Deferred Income [Line Items]
Deferred income, beginning balance			€ 5,362
Servier collaboration agreement for osteoarthritis | IFRS 15 | Servier
Disclosure of Deferred Income [Line Items]
Reclassified from equity following adoption of IFRS 15				€ (5,362)

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Discontinued operations (Details) - EUR (€)		12 Months Ended
	Jan. 04, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Summary of financial statements in relation to the discontinued operations
Purchase commitments		€ 347,873,000	€ 251,670,000	€ 222,033,000
Fee-for-service business (held for sale)
Summary of financial statements in relation to the discontinued operations
Total consideration received	€ (37,100,000)
Purchase Commitments Term	5 years	5 years
Purchase commitments	€ 27,000.0	€ 27,000,000.0

XML

Discontinued operations - Financial performance (Details) - EUR (€) € / shares in Units, € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
(i) Financial performance
Revenues	€ 478,053	€ 834,901	[1]	€ 278,666	[1]
Other income	52,207	50,896	[1]	29,000	[1]
Total revenues and other income	530,260	885,797	[1]	307,666	[1]
Research and development expenses	(523,667)	(420,090)	[1]	(316,222)	[1]
Sales and marketing expenses	(66,468)	(24,577)	[1]	(4,146)	[1]
General and administrative expenses	(118,757)	(72,382)	[1]	(34,377)	[1]
Total operating expenses	(708,892)	(517,049)	[1]	(354,746)	[1]
Operating income/loss (-)	(178,632)	368,748	[1]	(47,080)	[1]
Other financial income	18,667	21,389	[1]	18,264	[1]
Other financial expenses	(152,844)	(59,968)	[1]	(2,602)	[1]
Net income	€ 5,565	€ 1,156	[1]	€ 2,981	[1]
Weighted average number of shares (in thousands of shares)	65,075	57,614		52,113
Fidelta d.o.o. (fee-for-service segment)
(i) Financial performance
Revenues	€ 16,140	€ 10,084		€ 10,170
Other income		8		9
Total revenues and other income	16,140	10,092		10,179
Research and development expenses	(7,685)	(7,229)		(6,653)
General and administrative expenses	(2,000)	(1,319)		(1,253)
Total operating expenses	(9,685)	(8,548)		(7,906)
Operating income/loss (-)	6,455	1,544		2,273
Other financial income	179	93		71
Other financial expenses	(176)	(102)		(135)
Income before tax	6,458	1,535		2,209
Income taxes	(893)	(379)		773
Net income	€ 5,565	€ 1,156		€ 2,981
Basic income per share from discontinued operations	€ 0.09	€ 0.02		€ 0.06
Diluted income per share from discontinued operations	€ 0.08	€ 0.02		€ 0.06
Weighted average number of shares (in thousands of shares)	65,075	57,614		52,113
Weighted average number of shares - Diluted (in thousands of shares)	67,572	60,112		53,922

[1] The 2019 and 2018 comparatives have been restated to consider the impact of classifiying the Fidelta business as discontinued opearations in 2020.

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Discontinued operations - Assets and liabilities (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
(ii) Assets and liabilities
Intangible assets	€ 67,565	€ 24,927	€ 3,632
Property, plant and equipment	103,378	66,052	23,137
Other non current assets	11,343	14,091	7,919
Trade and other receivables	148,418	54,009	18,609
Cash and cash equivalents	7,884	0	0
Other assets	11,953	9,138	8,244
Total assets classified as held for sale	23,406	0	0
Non-current lease liabilities	23,035	19,558	0
Other non-current liabilities	8,096	6,989	1,578
Trade and other liabilities	172,386	143,434	68,928
Current lease liabilities	6,401	5,826	0
Income tax payable	1,248	2,037	1,175
Deferred income	443,159	414,298	149,801
Liabilities associated with assets classified as held for sale	8,917	€ 0	€ 0
Fidelta d.o.o. (fee-for-service segment)
(ii) Assets and liabilities
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 assets	863
Total assets classified as held for sale	23,406
Non-current lease liabilities	4,115
Other non-current liabilities	70
Trade and other liabilities	3,649
Current lease liabilities	727
Income tax payable	356
Liabilities associated with assets classified as held for sale	8,917
Net assets	€ 14,488

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Discontinued operations - Assets and liabilities (Details 2) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flow
Net cash flows generated in operating activities	€ 7,173	€ 2,911	€ 3,335
Net cash flows used in investing activities	(2,284)	(1,350)	(799)
Net cash flows used in financing activities	(664)	(709)
Net cash flow from discontinued operations	€ 4,225	€ 852	€ 2,536

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Operating Cash Flow (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statement of Cash Flows
Depreciation and amortization	€ 18,682	€ 12,448	€ 5,081
Impairment loss			1,083
Share-based compensation expenses	79,959	38,297	26,757
Decrease (-)/increase in retirement benefit obligations and provisions	(260)	(156)	99
Unrealized exchange losses/gains (-) and non-cash other financial expenses	105,055	11,169	(10,063)
Discounting effect of deferred income	16,278	6,900
Fair value re-measurement of share subscription agreement and warrants	(3,034)	181,644
Net fair value adjustment current financial investments	15,900	3,081
Fair value adjustment financial assets held at fair value through profit or loss	(2,396)	(5,355)	(1,203)
Other non-cash expenses	539
Total adjustment for non-cash transactions	230,723	248,027	21,753
Interest expense	9,424	1,302	780
Interest income	(7,476)	(9,247)	(5,219)
Tax expense	2,119	214	50
Total adjustment for items to disclose separately under operating cash flow	4,067	(7,731)	(4,389)
Gain (-)/loss on sale of fixed assets	82	(2)	(668)
Interest income on current financial investments	(2,554)	(5,059)
Total adjustment for items to disclose separately under investing and financing cash flow	(2,472)	(5,061)	(668)
Decrease in inventories	(100)	20	3
Increase in receivables	(177,155)	(67,263)	(76)
Increase in liabilities	31,163	79,940	19,996
Total change in working capital other than deferred income	€ 146,092	€ (12,698)	€ (19,922)

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Off-balance sheet arrangements (Details) € in Thousands	12 Months Ended
	Dec. 31, 2019 EUR (€) lease	Dec. 31, 2020 EUR (€)	Dec. 31, 2018 EUR (€)
Off-balance sheet arrangements
Operating lease obligations			€ 27,704
Purchase commitments	€ 251,670	€ 347,873	222,033
Total contractual obligations and commitments			249,737
Number of leases not yet commenced | lease	2
Lease commitments not yet commenced	€ 8,986
Less than 1 year
Off-balance sheet arrangements
Operating lease obligations			4,722
Purchase commitments	175,006	271,922	121,139
Total contractual obligations and commitments			125,862
Lease commitments not yet commenced	5,793
1-3 years
Off-balance sheet arrangements
Operating lease obligations			10,024
Purchase commitments	70,675	73,009	81,879
Total contractual obligations and commitments			91,903
Lease commitments not yet commenced	1,502
3-5 years
Off-balance sheet arrangements
Operating lease obligations			6,234
Purchase commitments	5,989	2,870	19,014
Total contractual obligations and commitments			25,248
Lease commitments not yet commenced	1,502
More than 5 years
Off-balance sheet arrangements
Operating lease obligations			6,724
Purchase commitments		72
Total contractual obligations and commitments			6,724
Lease commitments not yet commenced	188
Collaboration agreement for filgotinib | Gilead
Off-balance sheet arrangements
Purchase commitments	27,500	18,100	20,300
Total contractual obligations and commitments	€ 614,100	€ 493,400	€ 74,000

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Contingent assets and liabilities (Details) € in Thousands, $ in Millions				1 Months Ended		12 Months Ended
	Jan. 04, 2021 EUR (€)	Dec. 15, 2020 EUR (€)	Jul. 14, 2019 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($) Milestone	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Disclosure of contingent liabilities [line items]
Cost share mechanism						50.00%
Milestones achieved						€ 46,261		€ 2,878	€ 73,394
Gilead | Filgotinib drug license
Disclosure of contingent liabilities [line items]
Amount receivable in relation to the collaboration						€ 160,000
Outside Europe | Minimum
Disclosure of contingent liabilities [line items]
Tiered royalty Percentage			20.00%
Outside Europe | Minimum | Gilead collaboration agreement for ziritaxestat
Disclosure of contingent liabilities [line items]
Tiered royalty Percentage			20.00%
Outside Europe | Maximum
Disclosure of contingent liabilities [line items]
Tiered royalty Percentage			24.00%
Outside Europe | Maximum | Gilead collaboration agreement for ziritaxestat
Disclosure of contingent liabilities [line items]
Tiered royalty Percentage			24.00%
Europe | Gilead | Filgotinib drug license | Minimum
Disclosure of contingent liabilities [line items]
Percentage of future net sales from 2024						8.00%
Europe | Gilead | Filgotinib drug license | Maximum
Disclosure of contingent liabilities [line items]
Percentage of future net sales from 2024						15.00%
Filgotinib drug license
Disclosure of contingent liabilities [line items]
Proceeds from milestone payments | $				$ 105
Sales based milestone payment | $			$ 600
Filgotinib drug license | Gilead
Disclosure of contingent liabilities [line items]
Number of milestones achieved | Milestone					2
Achievement of milestone payments | $					$ 105
Upfront payments receivable in 2021						€ 75,000
Upfront payments receivable in 2022						€ 50,000
Filgotinib drug license | Gilead | Group B activities [Member]
Disclosure of contingent liabilities [line items]
Cost share mechanism						50.00%
Filgotinib drug license | Gilead | Maximum
Disclosure of contingent liabilities [line items]
Potential development and regulatory milestones						€ 295,000
Sales based milestone payment | $							$ 600
Filgotinib drug license | Outside Europe | Minimum
Disclosure of contingent liabilities [line items]
Tiered royalty Percentage			20.00%			20.00%	20.00%
Filgotinib drug license | Outside Europe | Maximum
Disclosure of contingent liabilities [line items]
Tiered royalty Percentage			30.00%			30.00%	30.00%
Fee-for-service business (held for sale)
Disclosure of contingent liabilities [line items]
Total consideration received	€ (37,100)
Reassessment Responsibilities [Member] | Filgotinib drug license | Gilead
Disclosure of contingent liabilities [line items]
Upfront payments		€ 35,000
Fidelta d.o.o. | Fee-for-service business (held for sale) | Selvita SA [Member]
Disclosure of contingent liabilities [line items]
Percentage of voting rights held directly or indirectly through subsidiaries	100.00%

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Share based payments - Subscription right plans (Details Textual) - EUR (€) € / shares in Units, € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subscription rights
Average exercise price	€ 104.0	€ 70.1	€ 53.3	€ 39.3
Subscription rights
Subscription rights
Share based compensation expense	€ 79,959	€ 38,297	€ 26,757
Average exercise price	€ 103.95	€ 70.09	€ 53.30
Weighted average remaining expected life	2050 days	2023 days	1975 days
Subscription rights | Supervisory board members
Subscription rights
Share based payments, Vesting period	36 months

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Share based payments - Summary of subscription rights outstanding and exercisable (Details)	12 Months Ended
	Dec. 31, 2020 EquityInstruments € / shares	Dec. 31, 2019 EquityInstruments € / shares	Dec. 31, 2018 EquityInstruments € / shares	Dec. 31, 2017 EquityInstruments € / shares
Subscription rights
Exercise Price | € / shares	€ 104.0	€ 70.1	€ 53.3	€ 39.3
Outstanding at the beginning of the year	5,541,117	4,626,782	3,970,807
Granted during the period	2,173,335	1,699,690	1,235,245
Exercised during the period	(744,965)	(754,605)	(567,270)
Forfeited during the year	(40,376)	(30,750)	(12,000)
Expired during the year	0
Outstanding at the end of the year	6,929,111	5,541,117	4,626,782
Exercisable	1,168,967	1,139,682	882,734	763,344
Subscription rights
Subscription rights
Exercise Price | € / shares	€ 103.95	€ 70.09	€ 53.30
Outstanding at the beginning of the year	5,541,117
Granted during the period	2,173,335
Exercised during the period	(744,965)
Forfeited during the year	(40,376)
Outstanding at the end of the year	6,929,111	5,541,117
Exercisable	1,168,967
2006 BNL allocated on December 2007
Subscription rights
Exercise Price | € / shares	€ 7.12
Outstanding at the beginning of the year	1,050
Exercised during the period	(1,050)
Outstanding at the end of the year		1,050
2007 RMV allocated on October 2007
Subscription rights
Exercise Price | € / shares	€ 8.65
Outstanding at the beginning of the year	14,980
Exercised during the period	(14,980)
Outstanding at the end of the year		14,980
2008 allocated on June 2008
Subscription rights
Exercise Price | € / shares	€ 5.6
Outstanding at the beginning of the year	1,365
Outstanding at the end of the year	1,365	1,365
Exercisable	1,365
2012 allocated on September 2012
Subscription rights
Exercise Price | € / shares	€ 14.19
Outstanding at the beginning of the year	80,040
Exercised during the period	(80,040)
Outstanding at the end of the year		80,040
2013 allocated on May 2013
Subscription rights
Exercise Price | € / shares	€ 19.38
Outstanding at the beginning of the year	120,434
Exercised during the period	(64,770)
Outstanding at the end of the year	55,664	120,434
Exercisable	55,664
2014 allocated on July 2014
Subscription rights
Exercise Price | € / shares	€ 14.54
Outstanding at the beginning of the year	252,340
Exercised during the period	(83,000)
Outstanding at the end of the year	169,340	252,340
Exercisable	169,340
2015 allocated on April 2015
Subscription rights
Exercise Price | € / shares	€ 28.75
Outstanding at the beginning of the year	282,473
Exercised during the period	(63,000)
Outstanding at the end of the year	219,473	282,473
Exercisable	219,473
2015 (B) allocated on December 2015
Subscription rights
Exercise Price | € / shares	€ 49.00
Outstanding at the beginning of the year	329,500
Exercised during the period	(68,000)
Outstanding at the end of the year	261,500	329,500
Exercisable	261,500
2015 RMV allocated on December 2015
Subscription rights
Exercise Price | € / shares	€ 49.00
Outstanding at the beginning of the year	57,500
Exercised during the period	(17,500)
Outstanding at the end of the year	40,000	57,500
Exercisable	40,000
2016 allocated on June 2016
Subscription rights
Exercise Price | € / shares	€ 46.10
Outstanding at the beginning of the year	504,250
Exercised during the period	(161,625)
Outstanding at the end of the year	342,625	504,250
Exercisable	342,625
2016 RMV allocated on June 2016
Subscription rights
Exercise Price | € / shares	€ 46.10
Outstanding at the beginning of the year	120,000
Exercised during the period	(51,000)
Outstanding at the end of the year	69,000	120,000
Exercisable	69,000
2016 (B) allocated on January 2017
Subscription rights
Exercise Price | € / shares	€ 62.50
Outstanding at the beginning of the year	150,000
Exercised during the period	(140,000)
Outstanding at the end of the year	10,000	150,000
Exercisable	10,000
2017 allocated on May 2017
Subscription rights
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
2017 RMV allocated on May 2017
Subscription rights
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
2018 allocated on April 2018
Subscription rights
Exercise Price | € / shares	€ 79.88
Outstanding at the beginning of the year	1,085,245
Forfeited during the year	(2,000)
Outstanding at the end of the year	1,083,245	1,085,245
2018 RMV allocated on April 2018
Subscription rights
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
Subscription rights
Exercise Price | € / shares	€ 95.11
Outstanding at the beginning of the year	1,486,690
Forfeited during the year	(8,850)
Outstanding at the end of the year	1,477,840	1,486,690
2019 RMV allocated on April 2019
Subscription rights
Exercise Price | € / shares	€ 95.11
Outstanding at the beginning of the year	194,750
Forfeited during the year	(1,750)
Outstanding at the end of the year	193,000	194,750
2020 allocated on April 2020
Subscription rights
Exercise Price | € / shares	€ 168.42
Granted during the period	1,925,185
Forfeited during the year	(19,151)
Outstanding at the end of the year	1,906,034
2020 RMV allocated on April 2020
Subscription rights
Exercise Price | € / shares	€ 168.42
Granted during the period	248,150
Forfeited during the year	(8,625)
Outstanding at the end of the year	239,525

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Share based payments - Rollforward (Details)	12 Months Ended
	Dec. 31, 2020 EquityInstruments € / shares	Dec. 31, 2019 EquityInstruments € / shares	Dec. 31, 2018 EquityInstruments € / shares	Dec. 31, 2017 EquityInstruments € / shares
Share based payments
Outstanding at the beginning of the year | EquityInstruments	5,541,117	4,626,782	3,970,807
Granted during the period | EquityInstruments	2,173,335	1,699,690	1,235,245
Forfeited during the year | EquityInstruments	(40,376)	(30,750)	(12,000)
Exercised during the period | EquityInstruments	(744,965)	(754,605)	(567,270)
Expired during the year | EquityInstruments	0
Outstanding at the end of the year | EquityInstruments	6,929,111	5,541,117	4,626,782
Exercisable | EquityInstruments	1,168,967	1,139,682	882,734	763,344
Weighted average exercise price at beginning of the year | € / shares	€ 70.1	€ 53.3	€ 39.3
Granted during the period | € / shares	168.4	95.1	79.9
Forfeited during the year | € / shares	144.8	88.9	43.2
Exercised during the period | € / shares	38.0	22.8	13.5
Expired during the year | € / shares	0
Weighted average exercise price at end of the year | € / shares	104.0	70.1	53.3
Exercisable | € / shares	€ 37.8	€ 30.2	€ 14.0	€ 13.7

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Share based payments - Valuation (Details)	12 Months Ended
	Dec. 31, 2020 € / shares
2019 allocated on April 2019
Subscription rights
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
Subscription rights
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%)
2018 allocated on April 2018
Subscription rights
Exercise Price	€ 79.88
Weighted average share price at acceptance date	84.88
Weighted average fair value at acceptance date	€ 38.39
Weighted average estimated volatility	39.44%
Weighted average expected life of the subscription rights (years)	8 years
Weighted average risk free rate (%)	0.51%
2018 RMV allocated on April 2018
Subscription rights
Exercise Price	€ 79.88
Weighted average share price at acceptance date	84.88
Weighted average fair value at acceptance date	€ 38.39
Weighted average estimated volatility	39.44%
Weighted average expected life of the subscription rights (years)	8 years
Weighted average risk free rate (%)	0.51%
2020 April 17
Subscription rights
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%)
2020 RMV April 17
Subscription rights
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%)

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Share based payments - Category (Details)	Dec. 31, 2020 EquityInstruments € / shares	Dec. 31, 2019 EquityInstruments € / shares	Dec. 31, 2018 EquityInstruments € / shares	Dec. 31, 2017 EquityInstruments € / shares
Subscription rights
Total warrants outstanding	6,929,111	5,541,117	4,626,782	3,970,807
Exercise Price | € / shares	€ 104.0	€ 70.1	€ 53.3	€ 39.3
Non-executive directors
Subscription rights
Total warrants outstanding	157,560	222,600	216,780
Executive team
Subscription rights
Total warrants outstanding	2,101,874	2,171,874	2,139,374
Other
Subscription rights
Total warrants outstanding	4,669,677	3,146,643	2,270,628

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Share based payments - Summary of RSU's outstanding (Details) - EquityInstruments	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share based payments
Outstanding at the beginning of the year	5,541,117	4,626,782	3,970,807
Granted during the period	2,173,335	1,699,690	1,235,245
Forfeited during the year	(40,376)	(30,750)	(12,000)
Outstanding at the end of the year	6,929,111	5,541,117	4,626,782
Restricted Stock Units (RSUs)
Share based payments
Outstanding at the beginning of the year	213,147	0
Granted during the period	128,769	213,147
Forfeited during the year	(1,052)
Paid in cash during the year	(27,268)
Outstanding at the end of the year	313,596	213,147	0
Plan 2019.I
Share based payments
Outstanding at the beginning of the year	33,000
Outstanding at the end of the year	33,000	33,000
Plan 2019.II
Share based payments
Outstanding at the beginning of the year	109,075
Paid in cash during the year	(27,268)
Outstanding at the end of the year	81,807	109,075
Plan 2019.III
Share based payments
Outstanding at the beginning of the year	71,072
Outstanding at the end of the year	71,072	71,072
Plan 2020.I
Share based payments
Granted during the period	55,928
Forfeited during the year	(1,052)
Outstanding at the end of the year	54,876
Plan 2020.II
Share based payments
Granted during the period	72,841
Outstanding at the end of the year	72,841

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Share based payments - Restricted stock units - Rollforward (Details) - EquityInstruments	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share based payments
Outstanding at the beginning of the year	5,541,117	4,626,782	3,970,807
Granted during the period	2,173,335	1,699,690	1,235,245
Forfeited during the year	(40,376)	(30,750)	(12,000)
Outstanding at the end of the year	6,929,111	5,541,117	4,626,782
Restricted Stock Units (RSUs)
Share based payments
Outstanding at the beginning of the year	213,147	0
Granted during the period	128,769	213,147
Forfeited during the year	(1,052)
Paid in cash during the year	(27,268)
Outstanding at the end of the year	313,596	213,147	0

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Share based payments - Restricted stock units - Category (Details) - EquityInstruments	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share based payments
Total outstanding RSU's	6,929,111	5,541,117	4,626,782	3,970,807
Other
Share based payments
Total outstanding RSU's	4,669,677	3,146,643	2,270,628
Restricted Stock Units (RSUs)
Share based payments
Total outstanding RSU's	313,596	213,147	0
Restricted Stock Units (RSUs) | Management board members
Share based payments
Total outstanding RSU's	229,276	188,571
Restricted Stock Units (RSUs) | Other
Share based payments
Total outstanding RSU's	84,320	24,576

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Share based payments - Restricted stock units (RSU's) (Details Textual)	12 Months Ended
	Dec. 31, 2020 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
Number of calendar days period preceding reporting period for calculate value of weighted average price of entity share traded on stock-exchange	30
Plan 2019.I
Share based payments
Share based payments, Vesting period	3 years
Plan 2019.II
Share based payments
Share based payments, Vesting period	4 years
Share based payments, Percentage of other equity instruments vested per month	25.00%
Plan 2019.III | Share based payments, Vesting percentage portion one
Share based payments
Share based payments, Vesting period	2 years
Plan 2019.III | Share based payments, Vesting percentage portion two
Share based payments
Share based payments, Vesting period	3 years
Plan 2019.III | Warrants vested on date of grant
Share based payments
Share based payments, Percentage of other equity instruments vested in certain period	50.00%
Plan 2019.III | Warrants vested on first anniversary
Share based payments
Share based payments, Percentage of other equity instruments vested in certain period	50.00%
Plan 2020.I
Share based payments
Share based payments, Vesting period	3 years
Plan 2020.II
Share based payments
Share based payments, Vesting period	4 years
Share based payments, Percentage of other equity instruments vested per month	25.00%

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Related parties - Narrative (Details) € / shares in Units, $ in Millions								12 Months Ended
	Sep. 25, 2020 EUR (€)	Sep. 25, 2020 USD ($)	Nov. 06, 2019 EUR (€)	Oct. 22, 2019	Aug. 28, 2019	Jul. 14, 2019 EUR (€)	Jul. 14, 2019 USD ($)	Dec. 31, 2020 EUR (€) EquityInstruments item employee € / shares	Dec. 31, 2019 EUR (€) EquityInstruments employee € / shares	Dec. 31, 2018 EUR (€) EquityInstruments € / shares	Dec. 31, 2017 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								6	6
Number of board of directors | employee								8
Granted during the period | EquityInstruments								2,173,335	1,699,690	1,235,245
Exercise price of warrants | € / shares								€ 168.4	€ 95.1	€ 79.9
Milestones received								€ 90,192,000	€ 49,727,000	€ 20,965,000
Cross charges payable relating to development of Filgotinib								24,800
Upfront payment received						€ 3,569,800,000	$ 3,950.0
Deferred income classified as current								443,159,000	414,298,000	149,801,000
Deferred Income								€ 2,809,133,000	€ 3,000,646,000	149,801,000	€ 219,892,000
Cost share mechanism								50.00%
Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period | EquityInstruments								128,769	213,147
Gilead
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Upfront payment received									€ 3,845,373,000
Deferred Income								€ 4,286,852,000	4,012,108,000
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								1,990,400,000	2,220,000,000.0
Impact on revenues from performance obligations								229,600,000	80,900,000
Gilead collaboration agreement for drug discovery platform | Gilead
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Deferred Income								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								818,700,000
Collaboration agreement for filgotinib | Gilead
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Milestones received								90,192,000	27,317,000	12,417,000
Deferred Income								818,654,000	€ 780,261,000	€ 145,798,000	€ 213,981,000
Gilead collaboration agreement for ziritaxestat and filgotinib
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								€ 22,800,000
Gilead
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Percentage of stake			25.10%		22.04%
Percentage of ownership interest								25.54%	25.84%
Number of capital increases | item								4
Non-current trade receivables								€ 50,000,000
Trade and other receivables								132,825,000	€ 31,645,000
Trade and other payables								27,074,000	39,100,000
Additional equity investment			€ 368,000,000.0
Gilead | Japanese authorities
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Milestones received	€ 25,800,000	$ 30.0
Gilead | European authorities
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Milestones received	€ 64,400,000	$ 75.0
Gilead | Maximum
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Percentage of stake				29.90%
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								2,000,000,000.0
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]
Amount receivable in relation to the collaboration								160,000,000.0
Amount receivable in relation to the collaboration, Year One								110,000,000.0
Amount receivable in relation to the collaboration, Year Two								50,000,000.0
Deferred Income								819,000,000
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								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								228,100,000	41,400,000
Filgotinib drug license | Gilead
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
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								16,200,000
Cost reimbursements recognized								101,000,000.0	72,000,000.0
Adddition (deduction) of sales & marketing expenses								(4,700,000)	€ 8,200,000
Deduction of research and development expenditure								€ (3,100,000)
Cost share mechanism									50.00%

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Related parties - Summary of remuneration package (Details)	12 Months Ended
	Dec. 31, 2020 EUR (€) EquityInstruments	Dec. 31, 2019 EUR (€) EquityInstruments	Dec. 31, 2018 EUR (€) EquityInstruments
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 | €	€ 3,102,000
Post-employment benefits | €	392,000	€ 323,000	€ 305,000
Total benefits excluding warrants and RSUs | €	€ 4,262,000	€ 16,618,000	€ 5,346,000
Granted during the period	2,173,335	1,699,690	1,235,245
Total cost of warrants granted in the year | €	€ 22,921,000	€ 14,236,000	€ 15,507,000
Key management personnel compensation, tax advisory services amount | €			€ 20,100
Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period	275,000	360,000	402,500
Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period	128,769	213,147
Number of RSUs granted in the year	61,829	188,571	0
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 | €		€ 14,129,000	€ 2,909,000
Gross salary | €	€ 2,531,000	2,121,000	1,920,000
Employer social security on gross salary | €		61,000	125,000
Cash bonus | €	433,000	1,230,000	757,000
Exceptional bonus | €		10,500,000
Employer social security on exceptional bonus | €		108,000
Other short-term benefits | €	€ 138,000	109,000	107,000
Long-term benefits for executive committee members as a group | €		€ 1,874,000	€ 1,812,000
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]
Granted during the period	275,000	315,000	350,000
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]
Granted during the period	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]
Number of RSUs granted in the year	18,317	57,528	0
Bart Filus | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period	50,000	65,000
Bart Filus | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Number of RSUs granted in the year	12,600	39,846	0
Andre Hoekema | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period	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]
Number of RSUs granted in the year	832	19,922	0
Piet Wigerink | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period	40,000	50,000
Piet Wigerink | Restricted Stock Units (RSUs)
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Number of RSUs granted in the year	12,080	33,077	0
Walid Abi-Saab | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period	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]
Number of RSUs granted in the year	12,080	33,077	0
Michele Manto | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period	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]
Number of RSUs granted in the year	5,920	5,121	0
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]
Granted during the period		45,000	52,500
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	€ 90,000	€ 92,000
Raj Parekh | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period		15,000	15,000
Harrold van Barlingen
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
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 | €	125,000	€ 55,000	€ 53,000
Howard Rowe | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period		7,500	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	€ 48,000
Werner Cautreels | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period			7,500
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 | €	115,000	€ 45,000	€ 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]
Granted during the period		7,500	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	€ 40,000
Christine Mummery | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period			7,500
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	€ 45,000	€ 46,000
Mary Kerr | Warrants
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items]
Granted during the period		7,500	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	€ 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]
Granted during the period		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 | €	€ 78,000

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Consolidated companies as of December 31, 2020 (Details)		12 Months Ended
	Jan. 04, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
BioFocus DPI AG | Switzerland
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		0.00%	100.00%	100.00%
Changes in voting rights		(100.00%)
Fidelta d.o.o. | Selvita SA [Member] | Fee-for-service business (held for sale)
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries	100.00%
Fidelta d.o.o. | Croatia
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%	100.00%
Galapagos Biopharma BV | The Netherlands
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%
Galapagos Biopharma BV | Belgium
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%
Galapagos B.V | The Netherlands
Consolidated companies as of December 31, 2019
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, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%
Galapagos Biopharma Italy S.r.l. | Italy
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%
Galapagos Biopharma Germany GmbH | Germany
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%
Galapagos Biotech Ltd. (formerly Inpharmatica Ltd.) | United Kingdom
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%	100.00%
Galapagos GmbH | Switzerland
Consolidated companies as of December 31, 2019
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, 2019
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, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		0.00%	100.00%	100.00%
Changes in voting rights		(100.00%)
Galapagos Real Estate B.V. | The Netherlands
Consolidated companies as of December 31, 2019
Percentage of voting rights held directly or indirectly through subsidiaries		100.00%	100.00%
Galapagos SASU (France) | France
Consolidated companies as of December 31, 2019
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, 2019
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, 2019
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) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Financial risk management
Financial assets held at fair value through profit or loss	€ 8,951	€ 11,275		€ 6,000
Financial assets	5,357,438	5,834,526	[1]	1,307,922	[1]
Financial liabilities	167,505	148,331	[1]	52,466	[1]
Equity instruments
Financial risk management
Financial assets held at fair value through profit or loss	8,951	11,275	[1]	6,000	[1]
Current financial investments
Financial risk management
Financial assets held at fair value through profit or loss	1,571,858	3,919,216	[1]	0
Financial assets at amortised cost	1,454,420	0		0	[1]
Cash and cash equivalents
Financial risk management
Financial assets at amortised cost	2,135,187	1,861,616	[1]	1,290,796	[1]
Restricted cash (current and non-current)
Financial risk management
Financial assets at amortised cost	1,482	1,418	[1]	1,276	[1]
Other non-current assets
Financial risk management
Financial assets at amortised cost	907	1,399	[1]	644	[1]
Trade and other receivables (excl prepayments)
Financial risk management
Financial assets at amortised cost	184,632	39,603	[1]	9,206	[1]
Current financial instruments
Financial risk management
Financial liabilities held at fair value through profit or loss	3,164	6,198	[1]	0
Trade liabilities
Financial risk management
Financial liabilities at amortised cost	134,905	116,749	[1]	52,466	[1]
Lease liabilities.
Financial risk management
Financial liabilities at amortised cost	€ 29,436	€ 25,384	[1]	€ 0

[1] The historical consolidated financial information for 2019 and 2018 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.

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Financial risk management - Aging of Debtors (Details) - EUR (€) € in Thousands	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Financial risk management
Financial assets	€ 5,357,438	€ 5,834,526	[1]	€ 1,307,922	[1]
60 - 90 days | Trade receivables | Credit risk
Financial risk management
Financial assets	0	87		236
90 - 120 days | Trade receivables | Credit risk
Financial risk management
Financial assets	0	0		12
more than 120 days | Trade receivables | Credit risk
Financial risk management
Financial assets	€ 0	€ 0		€ 0

[1] The historical consolidated financial information for 2019 and 2018 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.

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Financial risk management - Interest rate risk and foreign exchange risk (Details) - EUR (€) € in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest rate risk
Financial risk management
Increase in interest rates	1.00%	1.00%	1.00%
Decrease in interest rates	1.00%	1.00%	1.00%
Change in profit or loss and equity due to reasonably possible change in 100 basis points	€ 51,700	€ 57,800	€ 12,900
Euros - U.S. Dollars Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	(116,690)	(133,373)	(27,200)
Euros - GB Pounds Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	303	113	100
Euros - CH Francs Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	2,013	538	208
Euros - HR Kunas Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	0	650	611
U.S. Dollars - GB Pounds Exchange rate value | Foreign exchange risk
Financial risk management
Increase (Decrease) in net book value	€ 0	€ (894)	€ (923)

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Auditor's remuneration (Details) - EUR (€)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Auditor's remuneration
Statutory auditor's fees	€ 1,202,800	€ 1,406,800
Fees for performance of the audit or review of the company’s affiliates financial statements	23,900	29,200
Fees for services executed for company’s affiliates	29,200	29,200
Other fees related to audit-related general fees	161,300	43,000.0
Other fees related to non-audit services executed by the statutory auditor	47,700	148,200
Other fees related to non-audit services executed by persons related to the statutory auditor	€ 890,700
Other fees related to IT services		€ 46,600

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Events after balance sheet date (Details)			12 Months Ended
	Mar. 19, 2021 EUR (€) EquityInstruments € / shares shares	Jan. 04, 2021 EUR (€)	Dec. 31, 2020 EquityInstruments	Dec. 31, 2019 EquityInstruments	Dec. 31, 2018 EquityInstruments
Disclosure of non-adjusting events after reporting period [line items]
Warrants exercised			744,965	754,605	567,270
Exercise of Warrants [Member]
Disclosure of non-adjusting events after reporting period [line items]
Warrants exercised	99,814
Average exercise price warrants | € / shares	€ 22.62
Increase to share capital and issuance premium due to warrants issued | €	€ 2,258,042.82
Number of shares issued | shares	99,814
Closing share price | € / shares	€ 68.48
Fee-for-service business (held for sale)
Disclosure of non-adjusting events after reporting period [line items]
Total consideration received | €		€ (37,100,000)
CEO [member] | Exercise of Warrants [Member]
Disclosure of non-adjusting events after reporting period [line items]
Warrants exercised	41,874
Members of Executive Committee [member] | Exercise of Warrants [Member]
Disclosure of non-adjusting events after reporting period [line items]
Warrants exercised	10,000
Members of Board of Directors [member] | Exercise of Warrants [Member]
Disclosure of non-adjusting events after reporting period [line items]
Warrants exercised	5,040