10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended March 31, 2024
or

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

For the transition period from________to________

Commission File Number: 001-39748

PUBMATIC, INC.

(Exact name of registrant as specified in its charter)

Delaware	20-5863224
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)
Not applicable	Not applicable
(Address of principal executive offices)	(Zip Code)
Not applicable
(Registrant’s telephone number, including area code)
Not applicable
(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Class A common stock, $0.0001 par value per share	PUBM	The Nasdaq Global Market

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 x No o

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 x No o

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

Large accelerated filer	☒	Accelerated filer	o
Non-accelerated filer	o	Smaller reporting company	o
		Emerging growth company	o

If an emerging growth company, 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. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No x

As of May 1, 2024, the registrant had 41,452,195 shares of Class A common stock outstanding and 8,478,816 shares of Class B common stock outstanding.

TABLE OF CONTENTS
		Page
PART I - FINANCIAL INFORMATION
Item 1.	Condensed Consolidated Financial Statements (Unaudited)	1
	Condensed Consolidated Balance Sheets	1
	Condensed Consolidated Statements of Operations	2
	Condensed Consolidated Statements of Comprehensive Loss	3
	Condensed Consolidated Statements of Stockholders’ Equity	4
	Condensed Consolidated Statements of Cash Flows	5
	Notes to Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	29
Item 4.	Controls and Procedures	29
PART II - OTHER INFORMATION
Item 1.	Legal Proceedings	30
Item 1A.	Risk Factors	30
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	33
Item 3.	Defaults Upon Senior Securities	33
Item 4.	Mine Safety Disclosures	33
Item 5.	Other Information	34
Item 6.	Exhibits	35
	Signatures	36

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

PUBMATIC, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except par values)

	March 31, 2024		December 31, 2023
	(unaudited)
ASSETS
Current assets
Cash and cash equivalents	$	80,194	$	78,509
Marketable securities	93,887		96,835
Accounts receivable, net	303,284		375,468
Prepaid expenses and other current assets	11,540		11,143
Total current assets	488,905		561,955
Property, equipment and software, net	56,550		60,729
Operating lease right-of-use assets	23,473		21,102
Acquisition-related intangible assets, net	5,469		5,864
Goodwill	29,577		29,577
Deferred tax assets	18,547		13,880
Other assets, non-current	3,669		2,136
TOTAL ASSETS	$	626,190	$	695,243
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
Accounts payable	$	289,176	$	347,673
Accrued liabilities	19,763		25,684
Operating lease liabilities, current	6,841		6,236
Total current liabilities	315,780		379,593
Operating lease liabilities, non-current	17,613		15,607
Other liabilities, non-current	4,067		3,844
TOTAL LIABILITIES	337,460		399,044
Commitments and contingencies (Note 8)
Stockholders' equity
Preferred stock, $0.0001 par value per share, 10,000 shares authorized as of March 31, 2024 and December 31, 2023; No shares issued and outstanding as of March 31, 2024 and December 31, 2023	—		—
Common stock, $0.0001 par value per share; 1,000,000 Class A shares authorized as of March 31, 2024 and December 31, 2023; 46,327 shares issued and 41,393 shares outstanding as of March 31, 2024; 45,542 shares issued and 41,502 shares outstanding as of December 31, 2023; 1,000,000 Class B shares authorized as of March 31, 2024 and December 31, 2023; 11,626 shares issued and 8,486 shares outstanding as of March 31, 2024; 11,884 shares issued and 8,744 shares outstanding as of December 31, 2023	6		6
Treasury stock, at cost; 8,074 and 7,180 shares as of March 31, 2024 and December 31, 2023, respectively	(86,857)		(71,103)
Additional paid-in capital	241,179		230,419
Accumulated other comprehensive loss	(25)		(4)
Retained earnings	134,427		136,881
TOTAL STOCKHOLDERS’ EQUITY	$	288,730	$	296,199
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	626,190	$	695,243

The accompanying notes are an integral part of these condensed consolidated financial statements.

1

PUBMATIC, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

(Unaudited)

	Three Months Ended March 31,
	2024		2023
Revenue	$	66,701	$	55,407
Cost of revenue	25,424		23,863
Gross profit	41,277		31,544
Operating expenses:
Technology and development	7,960		6,517
Sales and marketing	24,815		23,127
General and administrative	14,027		12,572
Total operating expenses	46,802		42,216
Operating loss	(5,525)		(10,672)
Interest income	2,564		1,891
Other income (expense), net	258		(465)
Loss before income taxes	(2,703)		(9,246)
Benefit from income taxes	(249)		(3,375)
Net loss	$	(2,454)	$	(5,871)
Basic net loss per share of Class A and Class B stock	$	(0.05)	$	(0.11)
Diluted net loss per share of Class A and Class B stock	$	(0.05)	$	(0.11)
Weighted-average shares used to compute net loss per share attributable to common stockholders:
Basic	50,039		52,740
Diluted	50,039		52,740

The accompanying notes are an integral part of these condensed consolidated financial statements.

2

PUBMATIC, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(In thousands)

(Unaudited)

	Three Months Ended March 31,
	2024		2023
Net loss	$	(2,454)	$	(5,871)
Other comprehensive income (loss):
Unrealized gain (loss) on marketable securities, net of tax	(21)		17
Comprehensive loss	$	(2,475)	$	(5,854)

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

PUBMATIC, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands)

(Unaudited)

	Common Stock			Treasury Stock		Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Retained Earnings		Total Stockholders’ Equity
	Shares	Amount
Balance as of December 31, 2023	50,246	$	6	$	(71,103)	$	230,419	$	(4)	$	136,881	$	296,199
Stock-based compensation	—	—		—		9,821		—		—		9,821
Exercise of stock options	298	—		—		939		—		—		939
Repurchase of shares	(895)	—		(15,754)		—		—		—		(15,754)
Issuance of common stock related to RSU vesting	230	—		—		—		—		—		—
Other comprehensive loss	—	—		—		—		(21)		—		(21)
Net loss	—	—		—		—		—		(2,454)		(2,454)
Balance as of March 31, 2024	49,879	$	6	$	(86,857)	$	241,179	$	(25)	$	134,427	$	288,730

	Common Stock			Treasury Stock		Additional Paid-In Capital		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total Stockholders’ Equity
	Shares	Amount
Balance as of December 31, 2022	52,705	$	6	$	(11,486)	$	195,677	$	(9)	$	128,000	$	312,188
Stock-based compensation	—	—		—		7,606		—		—		7,606
Exercise of stock options	109	—		—		314		—		—		314
Repurchase of shares	(587)	—		(7,898)		—		—		—		(7,898)
Issuance of common stock related to RSU vesting	96	—		—		—		—		—		—
Other comprehensive income	—	—		—		—		17		—		17
Net loss	—	—		—		—		—		(5,871)		(5,871)
Balance as of March 31, 2023	52,323	$	6	$	(19,384)	$	203,597	$	8	$	122,129	$	306,356

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

PUBMATIC, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

	Three Months Ended March 31,
	2024		2023
CASH FLOW FROM OPERATING ACTIVITIES:
Net loss	$	(2,454)	$	(5,871)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	11,212		11,432
Stock-based compensation	9,111		7,059
Deferred income taxes	(4,667)		(4,327)
Accretion of discount on marketable securities	(1,234)		(1,057)
Non-cash operating lease expense	1,690		1,532
Other	(1)		(3)
Changes in operating assets and liabilities:
Accounts receivable	72,184		61,292
Prepaid expenses and other assets	(196)		894
Accounts payable	(58,444)		(55,387)
Accrued liabilities	(1,784)		(833)
Operating lease liabilities	(1,380)		(1,265)
Other liabilities, non-current	257		(712)
Net cash provided by operating activities	24,294		12,754
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(801)		(1,417)
Capitalized software development costs	(7,231)		(6,001)
Purchases of marketable securities	(34,336)		(40,343)
Proceeds from maturities of marketable securities	38,500		29,500
Net cash used in investing activities	(3,868)		(18,261)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment of business combination indemnification claims holdback	(2,148)		—
Proceeds from exercise of stock options	939		314
Principal payments on finance lease obligations	(32)		(31)
Payments to acquire treasury stock	(17,500)		(7,898)
Net cash used in financing activities	(18,741)		(7,615)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	1,685		(13,122)
CASH AND CASH EQUIVALENTS - Beginning of period	78,509		92,382
CASH AND CASH EQUIVALENTS - End of period	$	80,194	$	79,260
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Income taxes paid	$	1,033	$	349
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:
Stock-based compensation capitalized as internal-use software costs	$	710	$	547
Property and equipment included in accounts payable and accrued liabilities	$	148	$	1,311
Capitalized software costs included in accounts payable and accrued liabilities	$	917	$	820
Business combination purchase consideration - indemnification claims holdback	$	—	$	2,148

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

PUBMATIC, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited)

Note 1 – Organization and Description of Business

PubMatic, Inc. (together with its subsidiaries, the “Company” or “PubMatic”) was founded in 2006. The Company has offices worldwide. The Company provides a specialized cloud infrastructure platform that enables real-time programmatic advertising transactions. The purpose-built technology and infrastructure provides superior outcomes for both publishers and advertisers leveraging an efficient design, machine learning, and data processing capabilities, with customer alignment and global omnichannel reach.

Note 2 – Basis of Presentation and Summary of Significant Accounting Policies

Fiscal Year

The Company’s fiscal year ends on December 31, and its fiscal quarters end on March 31, June 30, September 30, and December 31. References to fiscal year 2024, for example, refer to the fiscal year ending December 31, 2024.

Unaudited Interim Condensed Consolidated Financial Information

The unaudited condensed consolidated financial statements include the accounts of PubMatic, Inc. and its wholly owned subsidiaries, and have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and following the requirements of the Securities and Exchange Commission (“SEC”) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP can be condensed or omitted. These financial statements have been prepared on the same basis as the Company’s annual financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for the fair statement of the Company’s financial information. These interim results are not necessarily indicative of the results to be expected for the fiscal year ending December 31, 2024 or for any other interim period or for any other future year. The accompanying unaudited condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023, as filed with the SEC on February 28, 2024 (the “Annual Report”).

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared in accordance with GAAP. The accompanying condensed consolidated financial statements include the accounts of PubMatic, Inc. and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. Certain prior period amounts reported in our condensed consolidated financial statements and notes thereto have been reclassified to conform to the current period presentation.

Use of Estimates

The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenue and expenses.

The Company evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts those estimates and assumptions when facts and circumstances dictate. Actual results could materially differ from those estimates and assumptions. Due to the inherent uncertainty involved in making assumptions and estimates, events and changes in circumstances arising after March 31, 2024, may result in actual outcomes that differ from those contemplated by the Company’s assumptions and estimates.

Concentration of Revenue and Accounts Receivable

The Company defines its revenue concentration based on revenue recognized from individual publishers. For the three months ended March 31, 2024 and 2023, no publisher represented more than 10% and one publisher represented 11% of the Company’s revenue, respectively. As of March 31, 2024, three buyers accounted for 33%, 22%, and 11% respectively, of accounts receivable. As of December 31, 2023, three buyers accounted for 30%, 21%, and 14%, respectively, of accounts receivable.

6

Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recorded at the invoiced amount, are unsecured, and do not bear interest. The allowance for credit losses is based on the best estimate of the amount of probable credit losses in existing accounts receivable. The allowance for credit losses is determined based on historical collection experience and the review in each period of the status of the then outstanding accounts receivable, while taking into consideration current customer information, collection history, and other relevant data. Account balances are written off against the allowance when the Company believes it is probable the receivable will not be recovered.

The following table presents the changes in the allowance for credit losses (in thousands):

	Three Months Ended March 31,
	2024		2023
Allowance for credit losses, beginning balance	$	770	$	1,765
Increase in provision for expected credit losses	—		—
Write-offs	163		—
Allowance for credit losses, ending balance	$	933	$	1,765

Recent Accounting Pronouncements Not Yet Adopted

In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07 "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for our annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

In December 2023, FASB issued ASU 2023-09 "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

7

Note 3 – Fair Value Measurements

The following tables set forth the fair value of the Company’s financial assets and liabilities measured on a recurring basis by level within the fair value hierarchy (in thousands):

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	34,996	$	—	$	—	$	34,996
Commercial paper	—		3,980		—		3,980
Certificates of deposit	—		11,308		—		11,308
Cash equivalents	34,996		15,288		—		50,284
Commercial paper	—		47,835		—		47,835
U.S. Treasury and government debt securities	—		46,052		—		46,052
Marketable securities	—		93,887		—		93,887
Total financial assets	$	34,996	$	109,175	$	—	$	144,171
	December 31, 2023
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	42,126	$	—	$	—	$	42,126
Certificates of deposit	—		12,528		—		12,528
Cash equivalents	42,126		12,528		—		54,654
Commercial paper	—		50,962		—		50,962
Agency debt securities	—		2,995		—		2,995
U.S. Treasury and government debt securities	—		42,878		—		42,878
Marketable securities	—		96,835		—		96,835
Total financial assets	$	42,126	$	109,363	$	—	$	151,489

The Company’s financial assets consist of Level 1 and 2 assets. The Company had no Level 3 assets or liabilities for the periods presented. The Company classifies its cash equivalents and marketable securities within Level 1 or Level 2 because they are valued using either quoted market prices or inputs other than quoted prices which are directly or indirectly observable in the market, including readily-available pricing sources for the identical underlying security which may not be actively traded. The Company’s fixed income available-for-sale securities consist of high quality, investment grade securities from diverse issuers. The valuation techniques used to measure the fair value of the Company’s marketable securities were derived from non-binding market consensus prices that are corroborated by observable market data and quoted market prices for similar instruments.

8

Note 4 – Balance Sheet Components

Marketable Securities

The following tables summarize the Company’s marketable securities by significant investment categories (in thousands):

	March 31, 2024
	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Commercial paper	$	47,856	$	—	$	(21)	$	47,835
U.S. Treasury and government debt securities	46,052		1		(1)		46,052
Total	$	93,908	$	1	$	(22)	$	93,887
	December 31, 2023
	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Commercial paper	$	50,975	$	3	$	(16)	$	50,962
Agency debt securities	2,997		—		(2)		2,995
U.S. Treasury and government debt securities	42,867		12		(1)		42,878
Total	$	96,839	$	15	$	(19)	$	96,835

The remaining contractual maturity of all marketable securities was within one year as of March 31, 2024 and December 31, 2023. Realized gains and losses were not material for the three months ended March 31, 2024 and 2023. As of March 31, 2024 and 2023, there were no securities that were in an unrealized loss position for more than twelve months.

Property, Equipment and Software, Net

Property, equipment and software, net consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Internal-use software	$	62,149	$	56,257
Network hardware, computer equipment and software	137,757		137,709
Leasehold improvements	5,328		5,173
Furniture and fixtures	2,303		2,304
Property, equipment and software, gross	207,537		201,443
Less: accumulated depreciation and amortization	(150,987)		(140,714)
Total property, equipment and software, net	$	56,550	$	60,729

Depreciation and amortization expense related to property, equipment, and software (excluding amortization of internal-use software) was $6.6 million and $7.3 million for the three months ended March 31, 2024 and 2023, respectively.

The Company capitalized $5.9 million and $5.4 million in software development costs during the three months ended March 31, 2024 and 2023, respectively. Amortization expense of internal-use software was $4.2 million and $2.8 million during the three months ended March 31, 2024 and 2023, respectively. These costs are included within cost of revenue in the condensed consolidated statements of operations.

The Company did not recognize any impairment charges on its long-lived assets during the three months ended March 31, 2024 and 2023, respectively.

Accounts Payable

Accounts payable consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Payable to publishers	$	275,925	$	335,061
Trade and other payables	13,251		12,612
Total accounts payable	$	289,176	$	347,673

9

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Accrued compensation	$	11,350	$	18,784
Accrued and other current liabilities	8,413		6,900
Total accrued liabilities	$	19,763	$	25,684

Note 5 – Senior Secured Credit Facilities Agreement

On October 17, 2022, the Company entered into a Senior Secured Credit Facilities Credit Agreement (the “Credit Agreement”) with the several lenders parties thereto (the “Lenders”), and Silicon Valley Bank (“SVB”), as administrative agent, lead arranger, issuing lender, and swingline lender. The Credit Agreement matures on October 17, 2027.

The Credit Agreement provides a revolving credit facility in an aggregate principal amount of $110 million (“the Revolving Credit Facility”), including a $25 million letter of credit sub-facility and a $25 million swingline sub-facility. The Company’s obligations under the Revolving Credit Facility and the letter of credit sub-facility (described in Note 8) with SVB are secured by substantially all of its assets excluding its intellectual property. The Company may, subject to certain customary conditions, on one or more occasions increase commitments under the Revolving Credit Facility in an amount not to exceed $90 million in the aggregate (the “Incremental Facility”). Each Lender will have discretion to determine whether it will participate in any Incremental Facility.

Borrowings under the Revolving Credit Facility will accrue interest at rates equal, at the Company’s election, to (i) the applicable secured overnight financing rate (“SOFR”), plus the applicable margin for such loans, or (ii) the alternate base rate (“ABR”), which is defined as the highest of (a) the prime rate in effect from time to time, (b) the federal funds effective rate in effect from time to time plus 0.50%, and (c) the adjusted term SOFR for a one (1) month tenor in effect from time to time plus 1.00%, plus the applicable margin for such loans. The applicable margin for borrowings bearing interest on the SOFR ranges from 2.00% to 2.75%, and the applicable margin for borrowings bearing interest based on the ABR ranges from 1.00% to 1.75%. As of March 31, 2024, the applicable interest rate under the revolving credit facility was 9.50%. The Company will pay a quarterly commitment fee during the term of the Credit Agreement for the non-use of available funds ranging from 0.25% to 0.35%. In addition, the Credit Agreement provides a mechanism to determine a successor reference rate to the applicable reference rate if, among other things, the applicable reference rate becomes unavailable or is generally replaced as a benchmark interest rate.

The Credit Agreement contains customary representations and warranties as well as customary affirmative and negative covenants. Negative covenants include, among others, limitations on incurrence of indebtedness, liens, disposition of property and investments by the Company and its subsidiaries. In addition, the Credit Agreement requires the Company to maintain certain interest coverage, leverage and senior leverage ratios. To date, the Company is in compliance with the affirmative and negative covenants.

The Credit Agreement contains customary events of default. Upon the occurrence and during the continuance of an event of default, the Lenders may declare the outstanding advances and all other obligations under the Credit Agreement immediately due and payable.

The Company may use amounts borrowed under the Credit Agreement for general corporate purposes or working capital financing. The Company may borrow additional amounts under the Credit Agreement from time to time as opportunities and needs arise. As of March 31, 2024, the Company has not drawn down on the credit facility.

Following the SVB closure by the California Department of Financial Protection and Innovation on March 10, 2023, and its subsequent receivership by the Federal Deposit Insurance Corporation (“FDIC”), the FDIC announced that all of SVB’s deposits and substantially all of its assets had been transferred to a newly created, full-service FDIC-operated bridge bank, Silicon Valley Bridge Bank, N.A. (“SVBB”). On March 27, 2023, First Citizens Bank & Trust Company (“First Citizens”) acquired substantially all of the loans and certain other assets of the former SVB, and assumed all customer deposits and certain other liabilities of the former SVB. As such, First Citizen assumed SVB’s obligations under the Credit Agreement.

10

Note 6 – Leases

Operating lease cost is recognized on a straight-line basis over the lease term. Finance lease cost is recognized as a combination of the amortization expense for the right-of-use assets and interest expense for the outstanding lease liabilities, and results in a front-loaded expense pattern over the lease term. Short-term and variable lease costs are not material to the Company’s condensed consolidated financial statements.

During the three months ended March 31, 2024, operating right-of-use assets obtained in exchange for new lease obligations was $4.0 million.

The components of lease cost were as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Operating lease cost	$	2,019	$	1,834
Finance lease cost	47		47
Total lease cost	$	2,066	$	1,881

As of March 31, 2024, a weighted average discount rate of 3.15% and 2.24% has been applied to the remaining operating and finance lease payments, respectively, to calculate the lease liabilities included within the condensed consolidated balance sheets. The weighted average remaining lease term of operating and finance leases is 3.7 and 4.0 years, respectively, as of March 31, 2024.

As of March 31, 2024, the maturities of lease liabilities under operating and finance leases were as follows (in thousands):

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	5,924	$	109	$	6,033
2025	6,348		149		6,497
2026	6,557		153		6,710
2027	5,211		158		5,369
2028	1,813		40		1,853
Total minimum lease payments	25,853		609		26,462
Less: imputed interest	(1,399)		(26)		(1,425)
Total present value of lease liabilities	$	24,454	$	583	$	25,037

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Note 7 - Acquisition-related Intangible Assets, Net

Acquisition-related Intangible Assets, Net

Acquisition-related intangible assets, net consisted of the following (in thousands):

	March 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	7,900	$	2,431	$	5,469
Total acquisition-related intangible assets	$	7,900	$	2,431	$	5,469
	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	7,900	$	2,036	$	5,864
Customer relationships	1,000		1,000		—
Total acquisition-related intangible assets	$	8,900	$	3,036	$	5,864

The weighted average remaining useful life of developed technology was 3.5 years as of March 31, 2024. Amortization expense related to acquisition-related intangibles was $0.4 million and $1.3 million for the three months ended March 31, 2024 and 2023, respectively.

As of March 31, 2024, estimated future amortization expense for acquisition-related intangible assets was as follows (in thousands):

Remainder of 2024	$	1,185
2025	1,580
2026	1,580
2027	1,124
Total estimated future amortization expense for acquisition-related intangible assets	$	5,469

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Note 8 – Commitments and Contingencies

Purchase Obligations

The Company’s purchase obligations primarily relate to minimum contractual payments due to data center providers. During the three months ended March 31, 2024, there were no material changes to the Company’s non-cancelable purchase obligations disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023.

Letters of Credit

As of March 31, 2024 and December 31, 2023, the Company had two irrevocable letters of credit outstanding related to non-cancelable facilities leases in the amounts of $3.5 million and $0.5 million, with annual automatic renewal and final expiration dates in July 2028 and April 2025, respectively.

Legal Matters

From time to time, the Company is or may be involved in various claims and other legal matters arising in the normal course of business. The Company records an accrual for a liability relating to claims and other legal matters when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Any such accruals are reviewed at least quarterly and adjusted for the impacts of negotiations, rulings, settlements, and other information or events pertaining to a particular matter, or on the advice of legal counsel. To date, the Company has not incurred a material loss, or a material loss in excess of a recorded accrual, with respect to any claims and other legal matters arising in the normal course of business. However, the outcomes of claims and other legal matters are inherently unpredictable and subject to significant uncertainties. If the Company subsequently concludes that there is a reasonable possibility that a loss exceeding amounts already recognized may be incurred, and the amount of such additional loss would be material, the Company will either disclose the estimated additional loss or state that such an estimate cannot be made.

Indemnification

In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and provide for general indemnification. The Company’s exposure under these agreements is unknown because it involves future claims that may be made against the Company but have not yet been made. To date, the Company has not paid any material claims or been required to defend any actions related to its indemnification obligations. However, the Company may record charges in the future as a result of these indemnification obligations. In addition, the Company has indemnification agreements with certain of its directors and executive officers that require it, among other things, to indemnify them against certain liabilities that may arise due to their status or service as directors or officers of the Company. The terms of such obligations may vary.

Note 9 – Stockholders’ Equity and Equity Incentive Plans

Share Repurchases

In February 2023, the Company’s board of directors authorized the Company to repurchase up to $75 million of its Class A common stock (“2023 Repurchase Program”). In February 2024, the Company’s board of directors authorized the Company to repurchase up to an additional $100 million of its Class A common stock (“2024 Repurchase Program”) in addition to the $75 million previously authorized under the 2023 Repurchase Program. As of March 31, 2024, $100.0 million remains available for repurchases. Shares are repurchased in a manner deemed in the best interest of the Company and its stockholders, dependent upon business, economic and market conditions, corporate and regulatory requirements, prevailing stock prices and other considerations.

During the three months ended March 31, 2024, the Company repurchased 894,651 aggregate shares of Class A common stock for $15.7 million.

Repurchases are executed from time to time, subject to general business and market conditions and other investment opportunities, through open market purchases or privately negotiated transactions, in accordance with Rule 10b-18 and/or Rule 10b5-1 of the Exchange Act. The 2023 Repurchase Program is scheduled to terminate on December 31, 2024, while the 2024 Repurchase Program is scheduled to terminate on December 31, 2025.

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Equity Incentive Plans

The Company maintains the 2020 Equity Incentive Plan (“2020 Plan”), pursuant to which the Company may grant stock options, restricted stock awards, stock appreciation rights, restricted stock units (“RSUs”), deferred stock units (“DSUs”) performance awards, and stock bonus awards. As of March 31, 2024, the Company has reserved 3,025,245 shares of Class A common stock for the issuance of awards under the 2020 Plan. These available shares will increase automatically on January 1 for each of the first ten calendar years during the term of the 2020 Plan by the number of shares equal to the lesser of five percent (5%) of the aggregate number of outstanding shares of all classes of the Company’s common stock outstanding as of the immediately preceding December 31, or a number as may be determined by the Company’s board of directors or compensation committee. No new awards were issued under the Company’s prior 2006 Plan or 2017 Plan (“Prior Plans”) after the effective date of the 2020 Plan. To the extent outstanding awards under the 2006 Plan and the 2017 Plan are forfeited, expire unexercised, or would otherwise have been returned to the share reserve under the Prior Plans, the shares of Class B common stock subject to such awards instead will be available for future issuance as Class A common stock under the 2020 Plan.

Stock Options

The following table summarizes stock option activity and related information under the Company’s equity incentive plans:

	Stock Options
	Number of Shares Underlying Outstanding Options (in thousands)	Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2023	7,079	$	9.02	5.78	$	67,418
Options granted	1,544	15.46
Options exercised	(298)	3.16
Options canceled	(14)	1.25
Outstanding as of March 31, 2024	8,311	$	10.44	6.32	$	118,987
Vested and exercisable as of March 31, 2024	5,543	$	7.32	5.01	$	97,522

As of March 31, 2024, unrecognized stock-based compensation of $25.5 million related to unvested stock options will be recognized on a straight-line basis over a weighted average period of 2.92 years.

Restricted Stock Units

The following table summarizes RSU activity and related information under the Company’s 2020 Plan:

	RSUs
	Number of Shares (in thousands)	Weighted-Average Grant Date Fair Value per Share
Unvested as of December 31, 2023	2,934	$	19.49
Granted	2,038	15.95
Vested	(230)	20.92
Canceled or forfeited	(118)	17.22
Unvested as of March 31, 2024	4,624	$	17.92

As of March 31, 2024, unrecognized stock-based compensation of $75.2 million related to unvested RSUs will be recognized on a straight-line basis over a weighted average period of 3.00 years.

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2020 Employee Stock Purchase Plan

In November 2020, the Company’s board of directors adopted, and its stockholders approved, the 2020 Employee Stock Purchase Plan (“ESPP”).

The aggregate number of shares reserved for issuance under the ESPP increases automatically on January 1st of each of the first ten calendar years during the term of the ESPP by the number of shares equal to the lesser of (a) 1% of the total outstanding shares of all classes of the Company’s common stock as of the immediately preceding December 31, and (b) such number of shares of common stock as determined by the Company’s board of directors. The aggregate number of shares issued over the term of the ESPP may not exceed 7,500,000 shares of Class A common stock. As of March 31, 2024, the Company had reserved 401,599 shares of its Class A common stock for issuance under the ESPP.

Under the ESPP, Class A common stock will be purchased for the accounts of employees participating in the ESPP on each purchase date at a price per share equal to 85% of the lesser of: (a) the fair market value on the offering date or (b) the fair market value on the purchase date. The ESPP provides for, at maximum, 27 month offering periods and each offering period may consist of one or more six-month purchase periods, whereby the latest offering period commenced on June 1, 2022, and the offering periods thereafter consist of two six-month purchase periods ending May 31, 2023. As of March 31, 2024, $1.1 million has been withheld on behalf of employees for a future purchase under the ESPP due to the timing of payroll deductions and is included in accrued liabilities. For the three months ended March 31, 2024 and 2023, no shares of our Class A common stock were purchased under the ESPP.

As of March 31, 2024, unrecognized stock-based compensation expense related to the ESPP was $0.2 million, which is expected to be recognized over a weighted-average period of 0.17 years.

Stock-Based Compensation

Total stock-based compensation expense recognized in the condensed consolidated statements of operations was as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Cost of revenue	$	437	$	316
Technology and development	1,441		1,008
Sales and marketing	3,238		2,709
General and administrative	3,995		3,026
Total stock-based compensation expense	9,111		7,059
Tax benefit from stock-based compensation	(1,886)		(1,318)
Total stock-based compensation expense, net of tax effect	$	7,225	$	5,741

Note 10 – Net Loss Per Share

The Company has two classes of common stock, Class A and Class B. Basic and diluted earnings per share (“EPS”) attributable to common stockholders for Class A and Class B common stock were the same because they were entitled to the same liquidation and dividend rights.

The following table sets forth the computation of the Company’s basic and diluted net loss per share (in thousands, except per share data):

	Three Months Ended March 31,
	2024		2023
Numerator:
Net loss	$	(2,454)	$	(5,871)
Denominator:
Weighted average shares outstanding – basic and diluted	50,039		52,740
Net loss per share – basic and diluted	$	(0.05)	$	(0.11)

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The following weighted-average outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive (in thousands):

	Three Months Ended March 31,
	2024	2023
Options to purchase common stock	3,344	1,892
Unvested restricted stock units	7	2,451
ESPP	—	92
Total common stock equivalents excluded from net loss per share – diluted	3,351	4,435

Note 11 – Income Taxes

The Company has historically calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate ("AETR") for the full fiscal year to “ordinary” income or loss (pretax income or loss excluding unusual or infrequently occurring discrete items) for the reporting period. The discrete effective tax rate method has been used to calculate taxes for the fiscal three months ended March 31, 2024. The Company has determined that since small changes in estimated “ordinary” income would result in significant changes in the estimated AETR, the historical method would not provide a reliable estimate for the fiscal three months ended March 31, 2024.

The Company recorded a benefit from income taxes of $0.2 million and $3.4 million for the three months ended March 31, 2024 and 2023, respectively.

The effective income tax rate was 9% and 37% for the three months ended March 31, 2024 and 2023, respectively. The benefit from income taxes for the three months ended March 31, 2024 is related to tax benefits from foreign-derived intangible income (FDII), research tax credits, and deductions for equity awards, offset by nondeductible stock-based compensation and Section 162(m) limitation on the tax deductibility of officers’ compensation.

Realization of the Company’s deferred tax assets is dependent primarily on the generation of future taxable income. In considering the need for a valuation allowance, the Company considers its historical, as well as future projected, taxable income along with other objectively verifiable evidence. Objectively verifiable evidence includes the Company’s realization of tax attributes, assessment of tax credits, and utilization of net operating loss carryforwards during the year.

Note 12 – Segment Information

The following table presents total revenue by geographic area based on the publisher’s billing address (in thousands):

	Three Months Ended March 31,
	2024		2023
United States	$	40,507	$	32,640
EMEA	20,144		17,844
APAC	4,967		3,978
Rest of the world	1,083		945
Total	$	66,701	$	55,407

The following table presents long-lived assets, net, which consist primarily of property and equipment and operating lease right-of-use assets, by geographic area (in thousands):

	March 31, 2024		December 31, 2023
United States	$	63,354	$	68,299
Rest of the world	16,669		13,532
Total	$	80,023	$	81,831

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Note 13 – 401(k) Plan

The Company has a 401(k) Savings Plan (the “401(k) Plan”) that qualifies as a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating employees may elect to contribute up to 100% of their eligible compensation, subject to certain limitations. The 401(k) Plan provides for a discretionary employer matching contribution. The Company made $0.5 million and $0.4 million in matching contributions to the 401(k) Plan for the three months ended March 31, 2024 and 2023, respectively.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements generally are identified by the words “believe,” “may,” “will,” “potentially,” “estimate,” “continue,” “anticipate,” “intend,” “could,” “would,” “project,” “plan,” “expect,” and similar expressions. Examples of forward-looking statements include, but are not limited to, statements we make regarding our ability to maintain our growth and profitability, our ability to attract and retain publishers, and our expectations concerning the advertising industry.

These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in “Risk Factors” and elsewhere in this Quarterly Report on Form 10-Q. Moreover, we operate in a very competitive and rapidly changing environment, and new risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties, and assumptions, the forward-looking events and circumstances discussed in this Quarterly Report on Form 10-Q may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements.

You should not rely upon forward-looking statements as predictions of future events. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee that the future results, levels of activity, performance, or events and circumstances reflected in the forward-looking statements will be achieved or occur. We undertake no obligation to update publicly any forward-looking statements for any reason after the date of this Quarterly Report on Form 10-Q to conform these statements to actual results or to changes in our expectations, except as required by law.

The following discussion should be read in conjunction with the unaudited condensed consolidated financial statements and the related notes thereto included elsewhere in this Quarterly Report on Form 10-Q, and the audited consolidated financial statements and notes thereto and management’s discussion and analysis of financial condition and results of operations for the fiscal year ended December 31, 2023 included in our Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission (the “SEC”).

Overview

We are an independent technology company seeking to maximize customer value by delivering digital advertising’s supply chain of the future.

Our technology platform empowers the world’s leading digital content creators (which we refer to as “publishers”) across the open internet to maximize monetization of their advertising inventory. Our platform also provides control and transparency to buyers, which includes advertisers, agencies, agency trading desks, and demand side platforms (“DSPs”), (which we collectively refer to as “buyers”) and enables both publishers and buyers to drive better business outcomes. Our infrastructure-driven approach allows for the efficient processing and utilization of data in real time. By delivering scalable and flexible programmatic innovation, we believe we improve outcomes for our customers while championing a vibrant and transparent digital advertising supply chain.

We continue to focus on the strengths that we believe provide us with long-term competitive advantages. These strengths include our global, omnichannel reach which targets a diverse set of publishers touching many ad formats and digital device types, including mobile app, mobile web, desktop, display, video, over-the-top video/connected TV (“OTT/CTV”), and rich media. Additionally, as an independent infrastructure provider prioritizing transparency, we can be more closely aligned with both publishers and buyers which has enabled us to build direct relationships with publishers, advertisers, agencies, and DSPs and create bespoke products that meet our customers’ needs. We have also maintained a demonstrated track record of stability and agility to address these market conditions and provide superior outcomes for both publishers and buyers. Finally, we have designed our technology to efficiently process real-time advertising transactions while leveraging data to optimize outcomes for publishers and buyers. We own and operate our software and hardware infrastructure globally, which saves significant infrastructure expenditures as compared to public cloud alternatives.

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Industry Trends and Macroeconomic Factors

The digital advertising ecosystem continues to evolve and adapt at a rapid pace. Some noted trends include the continued growth of digital media across multiple platforms, a continued increase in the number of ad impressions processed and analyzed in real-time by each participant in the digital advertising ecosystem, and a desire for transparency and control throughout the supply chain from both the buyers and publishers. Additionally, rapidly evolving data and privacy regulations and industry standards continue to impact our business. For example, in April 2024, Google announced it will delay its phase out of third-party cookies in Chrome until at least 2025, which may impact the industry’s anticipated shift to alternative identity solutions.

Additionally, recent interest rate increases, foreign currency fluctuation and persistent inflation in the U.S. and other markets globally continue to create economic volatility and dislocation in the capital and credit markets in the U.S. and globally. To date, we have not observed material impacts in our business or outlook, but we intend to continue to monitor macroeconomic conditions closely and may determine to take certain financial or operational actions in response to such conditions to the extent our business begins to be adversely impacted.

We believe we are positioned to benefit from tailwinds in the advertising industry, including the rapid proliferation of digital media, the need for purpose-built infrastructure to address the increasing complexity in the digital advertising landscape, and increasing consumer time spent online.

See “Risk Factors” in this report and in our Annual Report on Form 10-K for the year ended December 31, 2023 for further discussion of the risks related to inflation, rising interest rates, foreign currency fluctuations and public health crises on our business.

Business Highlights

The table below summarizes the financial highlights of our business performance:

	Three Months Ended March 31,
	2024		2023
	(in thousands)
Revenue	$	66,701	$	55,407
Operating loss	$	(5,525)	$	(10,672)
Net loss	$	(2,454)	$	(5,871)
Adjusted EBITDA(1)	$	15,056	$	7,354
Net cash provided by operating activities	$	24,294	$	12,754

_______________

(1)For a definition of Adjusted EBITDA, an explanation of our management’s use of this measure, and a reconciliation of Adjusted EBITDA to net income, see “Non-GAAP Financial Measure.”

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Our Strategy and Performance

We believe our growth and financial performance are dependent on many factors, including those described below.

Attract New Customers and Expand our Relationship with Existing Customers Globally

We leverage our extensive platform capabilities and the subject matter expertise of our team members to grow revenue from our publishers and increase advertising spending from our buyers. Our sales and marketing team includes customer success pods to enhance customer knowledge and implementation of best practices. Once we onboard a new customer, we seek to expand our relationship with existing publishers by establishing multiple header bidding integrations by leveraging our omnichannel capabilities to maximize our access to publishers’ ad formats and devices, and expanding into the various properties that a publisher may own around the world. We may also up-sell additional products to publisher customers including our header bidding management, identity, and audience solutions. We automate workflow processes whenever feasible to drive predictable and value-added outcomes for our customers and increase productivity of our organization.

Net dollar-based retention rate is an important indicator of publisher satisfaction and usage of our platform, as well as potential revenue for future periods. We calculate our net dollar-based retention rate at the end of each quarter for a cumulative twelve months. We calculate our net dollar-based retention rate by starting with the revenue from publishers in the prior trailing twelve-month period (“Prior Period Revenue”). We then calculate the revenue from these same publishers in the current trailing twelve-month period (“Current Period Revenue”). Current Period Revenue includes any upsells and is net of contraction or attrition, but excludes revenue from new publishers.

Our net dollar-based retention rate equals the Current Period Revenue divided by Prior Period Revenue. Our net dollar-based retention rate was 106% for the trailing twelve months ended March 31, 2024 and 105% for the trailing twelve months ended March 31, 2023. Our revenue growth in the period ended March 31, 2024 and 2023 was primarily attributable to an increase in the number of ad impressions processed from our publishers, upselling additional products, penetration of header bidding for mobile app and digital video, and increased demand from the growth of our buyer relationships primarily through SPO agreements. Our net dollar-based retention rate and revenues for the period ended March 31, 2024 improved by one percentage point versus the prior trailing twelve month period.

Further, we work with DSPs to help them reduce their costs and improve advertiser ROI, which in turn makes us the specialized cloud infrastructure platform of choice for many of our buying partners. We depend upon a limited number of large DSPs for a large percentage of impressions purchased and our business results, including revenues, may be impacted by changes in their pricing strategies, bidding algorithms or go-to market efforts. As buyers increasingly consolidate their spending with fewer larger technology platforms, we seek to bring an increased proportion of their digital ad spending to our platform through direct deals. Supply Path Optimization (“SPO”) continues to be a major growth driver for us as we add new SPO relationships and expand existing ones. We have been investing in SPO technology and partnerships for five years and SPO represented approximately 50% of total activity for the three months ended March 31, 2024.

Monetization Excellence

We focus on monetizing digital impressions by coordinating over a hundred billion real-time auctions and nearly a trillion bids globally on a daily basis, using our specialized cloud software, machine learning algorithms, and scaled transaction infrastructure. Valuable ad impressions are transparent and data rich, viewable by humans, and verifiable. Each ad impression we auction consists of 592 independent data parameters, which can yield valuable insights if recorded and analyzed properly. This processing of voluminous data for each ad impression must occur in less than half a second as consumers expect a seamless digital ad experience. We continually assess impressions from new and existing publishers through a rigorous validation process. We add or remove impressions from our platform based on an assessment of the projected value of the impressions, which is influenced by the type of publisher and its related consumers, as well as the potential volume of monetizable impressions and ad format types, such as digital video. We continuously create and iterate algorithms that leverage vast datasets flowing through our infrastructure to improve the liquidity in our marketplace. Our ability to drive successful outcomes in the real-time auction process on behalf of our publishers and buyers will affect our operating results.

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Infrastructure Platform Efficiency

We have a track record of expanding the capacity of our infrastructure platform, while maintaining or reducing the corresponding costs related to processing impressions transacted on our platform on a per impression basis. We expect to continue to invest in both software and hardware infrastructure to continue growing the number of valuable ad impressions we process on our platform.

Our recent growth has been driven by a variety of factors including increased access to mobile web (display and video) and mobile app (display and video) impressions and desktop video impressions. Our performance is affected by our ability to maintain and grow our access to valuable ad impressions from current publishers as well as through new relationships with publishers. In March 2024, our platform processed approximately 648 billion ad impressions daily, each in a fraction of a second.

Key Components of Our Results of Operations

Revenue

We generate revenue from publishers who use our platform. We generate revenue primarily through fees charged to our publishers, which are generally a percentage of the value of the advertising impressions that publishers monetize on the platform. We also generate revenues from our other products such as OpenWrap, our header bidding solution, and Connect, our solution that provides additional data and insights to buyers, which are sold separate from or in conjunction with use of our platform. In 2023, we launched Activate, which allows buyers to execute direct deals on our platform with publisher inventory, and Convert, our commerce media solution.

We report revenue on a net basis. This represents gross billings to buyers, net of amounts we pay publishers. We record our accounts receivable at the amount of gross billings to buyers, net of allowances, for the amounts we are responsible to collect, and we record our accounts payable at the net amount payable to publishers. Accordingly, both accounts receivable and accounts payable appear large in relation to revenue, which is reported on a net basis.

Cost of Revenue

Cost of revenue consists of data center co-location costs, depreciation expense related to hardware supporting our platform, amortization expense related to capitalized internal-use software development costs, personnel costs, and allocated facilities costs. Personnel costs include salaries, bonuses, stock-based compensation, and employee benefit costs, and are primarily attributable to our cloud operations group, which maintains our servers, and our client operations group, which is responsible for the integration of new publishers and buyers and providing customer support for existing customers.

Operating Expenses

Technology and Development. Technology and development expenses consist of personnel costs, including salaries, bonuses, stock-based compensation, and employee benefits costs, allocated facilities costs, and professional services. These expenses include costs incurred in the development, implementation and maintenance of internal-use software, including platform and related infrastructure. We expend technology and development costs as incurred, except to the extent that such costs are associated with internal-use software development that qualifies for capitalization. We expect technology and development expenses to generally increase in absolute dollars in future periods.

Sales and Marketing. Sales and marketing expenses consist of personnel costs, including salaries, bonuses, stock-based compensation, and employee benefits costs, for our employees engaged in sales, sales support, marketing, business development, and customer relationship functions. Sales and marketing expenses also include expenses related to promotional, advertising and marketing activities, allocated facilities costs, travel, and entertainment primarily related to sales activity and professional services. We expect sales and marketing expenses to increase in absolute dollars in future periods.

General and Administrative. General and administrative expenses consist of personnel costs, including salaries, bonuses, stock-based compensation, and employee benefits costs for our executive, finance, legal, human resources, information technology, and other administrative employees. General and administrative expenses also include outside consulting, legal and accounting services, allocated facilities costs, and travel and entertainment primarily related to inter-office travel and conferences.

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Total Other Income (expense), Net

Total other income (expense), net consists of interest income and other income (expense), net. Interest income is generated by investing excess cash into money market accounts and marketable securities. Other income (expense), net consists primarily of gains and losses from foreign currency exchange transactions.

We believe that investment gains and losses, whether realized from dispositions or unrealized from changes in market prices of equity securities, are generally meaningless in understanding our reported results or evaluating the economic performance of our businesses. These gains and losses have caused and will continue to cause significant volatility in our periodic earnings.

Benefit from Income Taxes

The benefit from income taxes consists primarily of federal, state, and foreign income taxes. Our income tax benefit may be significantly affected by changes to our estimates for tax in jurisdictions in which we operate and other estimates utilized in determining the global effective tax rate. Actual results may also differ from our estimates based on changes in economic conditions. Such changes could have a substantial impact on the income tax provision. We reevaluate the judgments surrounding our estimates and make adjustments, as appropriate, each reporting period.

Our effective tax rate differs from the U.S. federal statutory income tax rate due to state taxes, foreign tax rate differences, research tax credits, and stock-based compensation.

Realization of our deferred tax assets is dependent primarily on the generation of future taxable income. In considering the need for a valuation allowance, we consider our historical, as well as future projected, taxable income along with other objectively verifiable evidence. Objectively verifiable evidence includes our realization of tax attributes, assessment of tax credits, and utilization of net operating loss carryforwards during the year.

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Results of Operations

The following tables set forth our condensed consolidated results of operations data and such data as a percentage of revenue for the periods presented. The period-to-period comparison of results is not necessarily indicative of results for future periods.

	Three Months Ended March 31,
	2024		2023
	(in thousands)
Revenue	$	66,701	$	55,407
Cost of revenue(1)	25,424		23,863
Gross profit	41,277		31,544
Operating expenses(1):
Technology and development	7,960		6,517
Sales and marketing	24,815		23,127
General and administrative	14,027		12,572
Total operating expenses	46,802		42,216
Operating loss	(5,525)		(10,672)
Interest income	2,564		1,891
Other income (expense), net	258		(465)
Loss before income taxes	(2,703)		(9,246)
Benefit from income taxes	(249)		(3,375)
Net loss	$	(2,454)	$	(5,871)

_______________

(1)Amounts include stock-based compensation expense before tax benefit as follows:

	Three Months Ended March 31,
	2024		2023
	(in thousands)
Cost of revenue	$	437	$	316
Technology and development	1,441		1,008
Sales and marketing	3,238		2,709
General and administrative	3,995		3,026
Total stock-based compensation expense	$	9,111	$	7,059

23

	Three Months Ended March 31,
	2024		2023
	(as percentage of revenue)
Revenue	100	%	100	%
Cost of revenue	38		43
Gross profit	62		57
Operating expenses:
Technology and development	12		12
Sales and marketing	37		42
General and administrative	21		23
Total operating expenses	70		77
Operating loss	(8)		(20)
Interest income	4		3
Other income (expense), net	—		—
Loss before income taxes	(4)		(17)
Provision for (benefit from) income taxes	—		(6)
Net loss	(4)	%	(11)	%

Revenue, Cost of Revenue and Gross Profit

	Three Months Ended March 31,
	2024			2023			$ Change		% Change
	(dollars in thousands)
Revenue	$	66,701		$	55,407		$	11,294	20	%
Cost of revenue	25,424			23,863			1,561		7	%
Gross profit	$	41,277		$	31,544		$	9,733	31	%
Gross profit margin	62		%	57		%

Revenue for the three months ended March 31, 2024 increased by $11.3 million, or 20%, compared to the three months ended March 31, 2023. Our revenues were primarily driven by increased impressions processed on our platform, emerging revenue streams, and growth in customer relationships. Our business continues to be impacted by the macro environment.

As of March 31, 2024, we served approximately 1,800 publishers and app developers worldwide on our platform, compared to approximately 1,700 publishers and app developers worldwide as of March 31, 2023. For purposes of our publisher count, we aggregate multiple business accounts from separate divisions, segments or subsidiaries into a single “master” publisher based on our assessment of the related nature of the group.

Our revenues may be affected by macroeconomic conditions for the remainder of 2024, as well as bidding methodology changes implemented by one of our buyers which may result in lower bid prices following such change, and the magnitude of these impacts on our future revenues is difficult to predict.

Cost of revenue increased $1.6 million for the three months ended March 31, 2024 compared to the three months ended March 31, 2023, primarily due to a $0.6 million increase in depreciation of data center equipment and amortization of internal-use software, a $0.2 million increase in support and maintenance costs, and a $0.7 million increase in personnel costs as headcount increased. Overall, our cost of revenue per impression processed for the three months ended March 31, 2024 decreased by approximately 14% compared to the three months ended March 31, 2023.

Our gross margin of 62% for the three months ended March 31, 2024 increased compared to 57% for the three months ended March 31, 2023 primarily due to acceleration of revenue growth.

We expect the cost of revenue to be higher in 2024 compared to 2023 in absolute dollars as we continue to expand our capacity to process impressions. Cost of revenue may fluctuate from quarter to quarter and period to period, on an absolute dollar basis and as a percentage of revenue, depending on revenue levels and the volume of transactions we process supporting those revenues, and the timing and amounts of depreciation and amortization of equipment and software.

24

Technology and Development

	Three Months Ended March 31,
	2024			2023			$ Change		% Change
	(dollars in thousands)
Technology and development	$	7,960		$	6,517		$	1,443	22	%
Percent of revenue	12		%	12		%

The increase in technology and development costs for the three months ended March 31, 2024 was primarily due to an increase of $1.6 million in personnel costs as headcount increased, partially offset by an increase of $0.5 million related to the capitalization of internal-use software.

We expect technology and development expenses to continue to increase in 2024 compared to 2023 in absolute dollars, primarily due to additional headcount and investment in technological innovation.

Sales and Marketing

	Three Months Ended March 31,
	2024			2023			$ Change		% Change
	(dollars in thousands)
Sales and marketing	$	24,815		$	23,127		$	1,688	7	%
Percent of revenue	37		%	42		%

Sales and marketing costs for the three months ended March 31, 2024 increased primarily due to a $2.2 million increase in personnel costs and a $0.2 million increase in facilities costs, offset by a decrease in amortization of intangible assets of $0.9 million.

We expect sales and marketing expenses to increase in 2024 compared to 2023 in absolute dollars primarily due to additional headcount investment and marketing programs.

General and Administrative

	Three Months Ended March 31,
	2024			2023			$ Change		% Change
	(dollars in thousands)
General and administrative	$	14,027		$	12,572		$	1,455	12	%
Percent of revenue	21		%	23		%

General and administrative expense increased for the three months ended March 31, 2024 primarily due to a $1.5 million increase in personnel costs.

We expect general and administrative expenses to increase in 2024 compared to 2023 in absolute dollars primarily due to additional headcount.

Interest Income

	Three Months Ended March 31,
	2024		2023		$ Change		% Change
	(dollars in thousands)
Interest income	$	2,564	$	1,891	$	673	36	%

Interest income increased for the three months ended March 31, 2024 compared to the prior year period due to the increase in interest rates.

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Other Income (Expense), net

	Three Months Ended March 31,
	2024		2023		$ Change		% Change
	(dollars in thousands)
Other income (expense), net	$	258	$	(465)	$	723	(155)	%

Other income (expense), net increased for the three months ended March 31, 2024 compared to the prior year period mainly due to currency fluctuations.

Benefit from Income Taxes

	Three Months Ended March 31,
	2024		2023		$ Change		% Change
	(dollars in thousands)
Benefit from income taxes	$	(249)	$	(3,375)	$	3,126	(93)	%

The difference between the effective tax rate for the three months ended March 31, 2024 of 9% and the federal statutory income tax rate of 21% was related to tax benefits from foreign-derived intangible income, research tax credits, and deductions for equity awards, partially offset by nondeductible stock-based compensation and Section 162(m) limitation on the tax deductibility of officers compensation. The effective income tax rate was 37% for the three months ended March 31, 2023 was related to the effects of stock-based compensation, foreign and state taxes, partially offset by foreign tax credits, and federal and state research credits.

Non-GAAP Financial Measures

In addition to our results determined in accordance with U.S. generally accepted accounting principles (“GAAP”), including, in particular, operating loss, net cash provided by operating activities, and net loss, we believe that Adjusted EBITDA, a non-GAAP measure, is useful in evaluating our operating performance. We define Adjusted EBITDA as net loss adjusted for stock-based compensation expense, depreciation and amortization, interest income, acquisition-related and other expenses, and provision for (benefit from) income taxes.

The following table presents a reconciliation of Adjusted EBITDA to net loss for each of the periods indicated:

	Three Months Ended March 31,
	2024		2023
	(in thousands)
Net loss	$	(2,454)	$	(5,871)
Add back (deduct):
Stock-based compensation	9,111		7,059
Depreciation and amortization	11,212		11,432
Interest income	(2,564)		(1,891)
Acquisition-related and other expenses (1)	—		—
Benefit from income taxes	(249)		(3,375)
Adjusted EBITDA	$	15,056	$	7,354

_______________

(1)We exclude acquisition-related and other expenses incurred in connection with our acquisition of Martin from Adjusted EBITDA because we do not believe such expenses are reflective of our ongoing core operations. Acquisition-related expenses incurred in connection with our acquisition of Martin include third-party transaction costs. Beginning in the third quarter fiscal 2023, we no longer exclude the impact of post-acquisition cash compensation arrangements for certain key acquired employees from our Adjusted EBITDA calculation. We have updated prior period results for comparability.

Although Adjusted EBITDA is used by many investors and securities analysts in their evaluations of companies, it has limitations as an analytical tool, and should not be considered in isolation or as a substitute for analysis of our results of operations as reported under GAAP. Other companies in our industry may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

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Liquidity and Capital Resources

We have financed our operations and capital expenditures primarily through utilization of cash generated from operations as well as sales of equity securities. As of March 31, 2024, we had cash, cash equivalents, and marketable securities of $174.1 million and net working capital, consisting of current assets less current liabilities, of $173.1 million.

Our principal uses of cash are funding our operations and other working capital requirements.

We believe our existing cash, cash equivalents, marketable securities and anticipated net cash provided by operating activities, together with available borrowings under our credit facility, will be sufficient to meet our working capital requirements for at least the next 12 months. However, if our operating performance during the next 12 months is below our expectations, our liquidity and ability to operate our business could be adversely affected. Our future capital requirements and the adequacy of available funds will depend on many factors, including those set forth under “Risk Factors.” As of March 31, 2024, our material cash requirements included the contractual commitments set forth under “Contractual Obligations and Future Cash Requirements.”

In February 2023, our board of directors authorized the 2023 Repurchase Program. Subsequently in February 2024, our board of directors authorized the 2024 Repurchase Program. During the three months ended March 31, 2024, we repurchased 894,651 shares of Class A common stock under the 2023 Repurchase Program and 2024 Repurchase Program, collectively, for an aggregate purchase price of $15.7 million. As of March 31, 2024, $100.0 million remained available for future share repurchases under the 2024 Repurchase Program. The U.S. Inflation Reduction Act of 2022 was enacted on August 16, 2022 and requires a one percent excise tax on certain share repurchases in excess of shares issued for employee compensation made after December 31, 2022. For purposes of calculating the excise tax, repurchasing corporations are permitted to net the fair market value of certain stock issuances against the fair market value of stock repurchases during the same taxable year, with certain exceptions. We do not expect this provision to have a material effect on our condensed consolidated financial statements.

In the future, we may attempt to raise additional capital through the sale of equity securities or through equity-linked or debt financing arrangements. If we raise additional funds by issuing equity or equity-linked securities, the ownership of our existing stockholders will be diluted. If we raise additional financing by incurring additional indebtedness, we may be subject to increased fixed payment obligations and could also be subject to additional restrictive covenants, such as limitations on our ability to incur additional debt, and other operating restrictions that could adversely impact our ability to conduct our business. Any future indebtedness we incur may result in terms that could be unfavorable to equity investors. We cannot guarantee that we will be able to raise additional capital in the future on favorable terms, or at all. Any inability to raise capital could adversely affect our ability to achieve our business objectives.

The global advertising industry experiences seasonal trends that affect the vast majority of participants in the digital advertising ecosystem. Most notably, advertisers have historically spent relatively more in the fourth quarter of the calendar year to coincide with the holiday shopping season, and relatively less in the first quarter. We expect seasonality trends to continue, thereby resulting in seasonality in our revenues and corresponding accounts receivable and accounts payable balances, and our ability to manage our resources in anticipation of these trends will affect our operating results.

Cash Flows

The following table summarizes our cash flows for the periods presented:

	Three Months Ended March 31,
	2024		2023
	(in thousands)
Net cash provided by operating activities	$	24,294	$	12,754
Net cash used in investing activities	(3,868)		(18,261)
Net cash used in financing activities	(18,741)		(7,615)
Net increase (decrease) in cash and cash equivalents	$	1,685	$	(13,122)

Operating Activities

Our cash flows from operating activities are primarily influenced by growth in our operations, increases or decreases in collections from our buyers and related payments to our publishers, as well as our investment in personnel to support the anticipated growth of our business. Cash flows from operating activities have been affected by changes in our working capital, particularly changes in accounts receivable and accounts payable. The timing of cash receipts from buyers and payments to publishers can significantly impact our cash flows from operating activities. In addition, we expect seasonality to impact quarterly cash flows from operating activities.

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For the three months ended March 31, 2024, net cash provided by operating activities of $24.3 million resulted primarily from adjustments for non-cash expenses of $16.1 million, including $11.2 million for depreciation and amortization and $9.1 million for stock-based compensation, a decrease in accounts receivable of $72.2 million, offset by a net loss of $2.5 million, a decrease in accounts payable of $58.4 million, and a decrease in accrued liabilities of $1.8 million.

For the three months ended March 31, 2023, net cash provided by operating activities of $12.8 million resulted primarily from adjustments for non-cash expenses of $14.6 million, including $11.4 million for depreciation and amortization and $7.1 million for stock-based compensation, lease expense of $1.5 million, a decrease in accounts receivable of $61.3 million, offset by a net loss of $5.9 million, a decrease in other non-current liabilities of $0.7 million and a decrease in accounts payable of $55.4 million.

Investing Activities

Our investing activities primarily included investments in marketable securities, purchases of equipment as we expanded the infrastructure in our third-party data centers, and capitalized internal-use software costs in support of enhancing our platform. Purchases of property and equipment may vary from period-to-period due to the timing of the expansion of our data centers, the addition of headcount, and the development cycles of our software development. As our business grows, we expect our capital expenditures and our investment activity to continue to increase.

For the three months ended March 31, 2024, we used $3.9 million in investing activities, consisting of $0.8 million in purchases of property and equipment (primarily data center infrastructure), and $7.2 million of investments in capitalized internal-use software, and a net decrease in investments of marketable securities of $4.2 million.

For the three months ended March 31, 2023, we used $18.3 million of cash in investing activities, consisting of $1.4 million in purchases of property and equipment (primarily data center infrastructure), $6.0 million of investments in capitalized internal-use software, and a net increase in investments of marketable securities of $10.8 million.

Financing Activities

For the three months ended March 31, 2024, net cash used in financing activities of $18.7 million was primarily due to purchases of treasury stock of $17.5 million, including the prepayment of funds for future purchases of approximately $1.8 million, and payment of a business combination indemnification holdback of $2.1 million, offset by proceeds from employee stock option exercises of $0.9 million.

For the three months ended March 31, 2023, net cash used in financing activities of $7.6 million was primarily due to purchases of treasury stock.

Contractual Obligations and Future Cash Requirements

Our principal contractual obligations consist of non-cancelable leases for our various facilities. In certain cases, the terms of the lease agreements provide for rental payments that increase over time.

There were no material changes to our contractual obligations disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023.

As of March 31, 2024, we had $5.0 million of long-term income tax liabilities, including interest, related to uncertain tax positions. Because of the high degree of uncertainty regarding the settlement of these liabilities, we are unable to estimate the years in which future cash outflows may occur.

Critical Accounting Policies and Estimates

We prepare our condensed consolidated financial statements in accordance with GAAP. The preparation of the condensed consolidated financial statements requires us to make estimates and assumptions that affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenue and expenses. We evaluate our estimates and assumptions on an ongoing basis using historical experience and other factors, and adjust those estimates and assumptions when facts and circumstances dictate. Actual results could materially differ from these estimates and assumptions.

Besides the update to our allowance for credit losses as included within "Note 2 – Basis of Presentation and Summary of Significant Accounting Policies" to the condensed consolidated financial statements in this report, there have been no significant changes in our critical accounting policies and estimates from those disclosed in our audited consolidated financial statements and notes thereto in our Annual Report on Form 10-K for the year ended December 31, 2023.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to certain market risks in the ordinary course of our business. These risks primarily include:

Interest Rate Risk

We had cash and cash equivalents of $80.2 million and marketable securities of $93.9 million as of March 31, 2024, which consisted of bank deposits, money market accounts, time deposits, commercial paper, U.S. Treasury and government debt securities. The primary objective of our investment activities is to preserve principal while maximizing income without significantly increasing risk. Because our cash, cash equivalents, and marketable securities have a relatively short maturity, our portfolio’s fair value is relatively insensitive to interest rate changes. Our line of credit is at variable interest rates. We had no amounts outstanding under our credit facility as of March 31, 2024. We do not believe that an increase or decrease in interest rates of 100 basis points would have a material effect on our operating results or financial condition. In future periods, we will continue to evaluate our investment policy relative to our overall objectives.

Currency Exchange Risk

Our condensed consolidated results of operations and cash flows are subject to fluctuations due to changes in foreign currency exchange rates. Historically, the majority of our revenue contracts have been denominated in U.S. Dollars. Our expenses are generally denominated in the currencies in which our operations are located, primarily the U.S. Dollar, Indian Rupee and British Pound. To date, we have not entered into any hedging arrangements with respect to foreign currency risk or other derivative instruments. In the event our foreign sales and expenses increase, our operating results may be more greatly affected by foreign currency exchange rate fluctuations, which can affect our operating income. A hypothetical 10% change in the U.S. Dollar to India Rupee exchange rate could result in a change of $0.5 million in our operating loss for the three months ended March 31, 2024. A hypothetical 10% change in the U.S. Dollar to British Pound exchange rate could result in a change of $0.5 million in our operating loss for the three months ended March 31, 2024.

Inflation Risk

We do not believe that inflation has had a material effect on our business, results of operations, or financial condition. If our costs were to become subject to significant inflationary pressures, for example in India, we might not be able to fully offset such higher costs through price increases. Our inability or failure to do so could adversely affect our business, results of operations, and financial condition.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), as of March 31, 2024. Based on such evaluation, our principal executive officer and principal financial officer have concluded that, as of such date, our disclosure controls and procedures were effective at a reasonable assurance level.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting (as defined in Rules 13a-15(d) and 15d-15(d) under the Exchange Act) that occurred during the quarter ended March 31, 2024 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Effectiveness of Controls and Procedures

Our management, including our principal executive officer and principal financial officer, do not expect that our disclosure controls or our internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well designated and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people or by management override of the controls. The design of any system of controls is also based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

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PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

From time to time, we may become involved in legal or regulatory proceedings, lawsuits and other claims arising in the ordinary course of our business. In view of the inherent difficulty of predicting the outcome of such matters, we cannot state what the eventual outcome of such matters will be. However, based on our knowledge, we are not presently a party to any legal proceedings that, in the opinion of our management, would individually or taken together have a material adverse effect on our business, operating results, financial condition, or cash flows. Regardless of outcome, litigation can have an adverse impact on us due to defense and settlement costs, diversion of management resources, negative publicity and reputational harm, and other factors. For additional information, see Note 8, “Commitments and Contingencies,” to our condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.

ITEM 1A. RISK FACTORS

Investing in our common stock involves a high degree of risk. The Company’s business, operations, financial results, and our stock price can be affected by a number of factors, whether currently known or unknown, including those described in Part I, Item 1A, "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2023. When any one or more of these risks materialize from time to time, such developments could adversely affect our business, financial condition, results of operations, cash flows, and the trading price of our stock. Below are material changes to our risk factors since our Annual Report on Form 10-K for the year ended December 31, 2023.

Risks Related to Our Business, Results of Operations and Growth

If our existing customers do not expand their usage of our platform, or if we fail to attract new publishers and buyers, our growth will suffer. Moreover, any decrease in the use of the advertising channels that we primarily depend on, or failure to expand into emerging channels, could adversely affect our business, results of operations, and financial condition.

We depend upon our buyer and publisher relationships, including channel partners, which aggregate large numbers of smaller publishers, to provide advertising space which we can offer to prospective buyers to continue to grow the usage of our platform. In doing so, we compete for both supply and demand with larger, well-established companies that may have technological or other advantages stemming from their broader experience in the market. We must continue to adapt and improve our technology to compete effectively, and customers have not always embraced our offerings due to various factors, including switching costs from moving away from pre-existing technology integrations, such as already implemented header bidding wrappers, and lack of awareness of our omnichannel offerings. Although we believe we provide superior transparency and accountability to such competitors, certain customers may make technological or financial demands that we are unable or unwilling to meet. These and other factors may make it difficult for us to increase our business with our publishers and buyers, cause some buyers to reduce their spending with us, or increase our costs of doing business, which could adversely affect our business, results of operations, and financial condition.

A relatively small number of premium publishers have historically accounted for a significant portion of the ad impressions sold on our platform, as well as a significant portion of our revenue from publishers, including a relatively small number of channel partners.

We generally do not have minimum commitments from publishers. As a result, the amount, quality, and cost of ad impressions available to us can change at any time with little or no prior notice, and we cannot assure you that we will have access to a consistent volume or quality of ad impressions at a reasonable cost, or at all. We depend upon a relatively small number of premium publishers and channel partners and expect to continue to do so for the foreseeable future. To support our continued growth, we seek to add additional publishers and buyers to our platform and to expand current utilization with our existing publishers and buyers. Any disruptions in our relationships with premium publishers, buyers, or our largest channel partners could adversely affect our business, results of operations, and financial condition. If we cannot retain or add individual publishers with valuable ad impressions, or if such publishers decide not to make their valuable ad impressions available to us, then our buyers may be less inclined to use our platform, which could adversely affect our business, results of operations, and financial condition.

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A limited number of large demand side platforms (“DSPs”) – The Trade Desk and Google DV360 in particular – account for a significant portion of the ad impressions purchased on our platform. We depend upon these DSPs for a large percentage of impressions purchased and expect to do so for the foreseeable future. We have no minimum commitments from buyers to spend on our platform, so the amount of demand available to us and our ability to generate revenue from that demand can change at any time with little or no prior notice, and we cannot assure you that we will have access to a consistent volume or quality of ad campaigns or demand for our ad impressions at a reasonable or consistent price, or at all. A change in the pricing strategies, bidding algorithms or go-to-market efforts by one of these large DSPs could disproportionately impact our business results, including revenues. Any disruptions in our relationships with DSPs, agencies, advertisers, or buyers could adversely affect our business, results of operations, and financial condition. If a buyer or group of buyers representing a significant portion of the demand in our marketplace decides to materially reduce use of our platform or the manner in which they use our platform, it could cause an immediate and significant decline in our revenue and profitability and adversely affect our business, results of operations, and financial condition.

Historically, our buyers have predominantly used our platform to purchase mobile, display, and video advertising inventory from our publishers. We expect that these will continue to be significant channels used by our customers for digital advertising in the future. We also believe that our revenue growth may depend on our ability to expand within mobile, video, and in particular, CTV, and we are continuing to enhance such channels. We may not be able to accurately predict changes in overall advertiser demand for the channels in which we operate and cannot assure you that our investment in formats will correspond to any such changes or shifts in demand. Any decrease in the use of mobile, display, and video advertising, whether due to customers losing confidence in the value or effectiveness of such channels, regulatory restrictions or other causes, or any inability to further penetrate CTV or enter new and emerging advertising channels, could adversely affect our business, results of operations, and financial condition.

Our results of operations may fluctuate significantly and may not meet our expectations or those of securities analysts and investors.

We operate in an evolving industry with ever-changing customer needs and behavior, and, as a result, our business has evolved over time such that our operating history makes it difficult to evaluate our business and future prospects. Our results of operations have fluctuated in the past, and future results of operations are likely to fluctuate as well. Although we have experienced prolonged revenue growth, we may not be able to sustain this growth rate, current revenue levels, or profitability. In addition, because our business is evolving, our historical results of operations may be of limited utility in assessing our future prospects. We expect to face challenges, risks, and difficulties frequently experienced by growing companies in rapidly developing industries, including those relating to:

•changes in demand and pricing for ad impressions sold on our platform;

•changes in our access to valuable ad impressions from publishers;

•responding to evolving industry standards and government regulations that impact our business, particularly in the areas of data protection and consumer privacy;

•developing, maintaining, and expanding relationships with publishers, DSPs, agencies, advertisers, and buyers;

•seasonality in our business;

•innovating and developing new solutions that are adopted by and meet the needs of publishers, DSPs, agencies, advertisers, and buyers;

•competing against companies with a larger customer base or greater financial or technical resources;

•changes in the structure of the buying and selling of ad impressions;

•changes in the pricing policies of publishers and competitors;

•changes in the bidding behavior of buyers of ad impressions;

•changes in demand due to changes in macroeconomic environment, including as a result of an economic downturn, recession, inflation, changes in interest rates or foreign exchange rates, disruptions to supply chains, or otherwise;

•further expanding our business internationally; and

•recruiting, integrating, and retaining qualified and motivated employees, particularly engineers.

Any one or more of the factors above may result in significant fluctuations in our results of operations. You should not rely on our past results as an indicator of our future performance.

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Risk Related to Data Collection and the Use of Collected Data

The disabling of third-party cookies, and the potential of others to develop proprietary replacements for cookies, could adversely affect our business, results of operations, and financial condition.

Some prominent technology companies, including Google, have also announced intentions to discontinue the use of third-party cookies, and to develop alternative methods and mechanisms for targeting advertisements. On January 4, 2024, Google disabled third-party cookies for up to 1% of Chrome users. Google also initially announced plans to disable cookies for additional users beginning in the third quarter of 2024, though the timeline for the further disablement of cookies has been postponed until at least 2025 by Google. If companies are forced to rely on targeting methodologies other than cookies, such companies may instead rely on proprietary products, algorithms, or statistical methods to track consumers without cookies, or may utilize log-in credentials entered by consumers into other web properties owned by those companies such as their email services to track web usage, including usage across multiple devices.

Additionally, such companies may build different and potentially proprietary consumer tracking methods into their widely used web browsers, which we may not be able to effectively use for our publishers and buyers. Many applications and other devices also allow consumers to avoid receiving advertisements by paying for subscriptions or other downloads. Although we believe our platform is well-positioned to adapt and continue to provide key data insights to our publishers without cookies, this transition could be more disruptive, slower, or more expensive than we currently anticipate, or publishers and buyers could elect to move a larger proportion of their advertising inventory or spend to these providers to take advantage of proprietary consumer tracking methods, any of which could materially affect our ability to serve our customers, publishers, and buyers, and our business, results of operations, and financial condition could be adversely affected.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES, USE OF PROCEEDS, AND ISSUER PURCHASE OF EQUITY SECURITIES

The following table provides information about our repurchases of our Class A common stock during the three months ended March 31, 2024:

Period	Total Number of Shares Purchased	Average Price Paid Per Share(2)		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs(1)	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs(1)
January 1, 2024 – January 31, 2024	348,251	$	14.98	348,251	$	110,516,733
February 1, 2024 – February 29, 2024	148,400	$	15.38	148,400	$	108,234,110
March 1, 2024 – March 31, 2024	398,000	$	20.59	398,000	$	100,038,201
Total	894,651			894,651

The amounts above do not include the 1% excise tax on stock repurchases enacted by the Inflation Reduction Act of 2022.

_______________

(1)On February 28, 2023, we announced the authorization of a share repurchase program for the repurchase of shares of our Class A common stock in an aggregate amount of up to $75 million through December 31, 2024. On February 22, 2024, we announced the authorization of an additional share repurchase program for the repurchase of shares of our Class A common stock in an aggregate amount of up to $100 million through December 31, 2025.

(2)Average price paid per share includes costs associated with the repurchases.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

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ITEM 5. OTHER INFORMATION

(c) Trading Plans

In the first quarter of 2024, no Section 16 director or officer adopted, modified, or terminated a “Rule 10b5-1 trading arrangement” (as defined in Item 408 of Regulation S-K of the Exchange Act).

There were no “non-Rule 10b5-1 trading arrangements” (as defined in Item 408 of Regulation S-K of the Exchange Act) adopted, modified, or terminated during the first quarter of 2024 by our directors and Section 16 officers.

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ITEM 6. EXHIBITS

		Incorporated by Reference
Exhibit Number	Description of Document	Form	File No.	Exhibit	Filing Date	Filed Herewith
31.1	Certification of Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.					X
31.2	Certification of Chief Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.					X
32.1*	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.					X
32.2*	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.					X
101.INS	Inline XBRL Instance Document — the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document					X
101.SCH	Inline XBRL Taxonomy Extension Schema Document					X
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document					X
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document					X
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document					X
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document					X
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)					X

________________
*      The information in this exhibit is furnished and deemed not filed with the Securities and Exchange Commission for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is not to be incorporated by reference into any filing of PubMatic, Inc. under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

** Indicates a management contract, compensatory plan or arrangement.

35

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Dated: May 7, 2024

PUBMATIC, INC.
By:	/s/ Steven Pantelick
	Steven Pantelick
	Chief Financial Officer (Principal Financial Officer)

36

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Rajeev K. Goel, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of PubMatic, Inc.;

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 registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer 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 registrant 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 registrant, 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 registrant’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 registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’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 registrant’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 registrant’s internal control over financial reporting.

Dated: May 7, 2024	By: /s/ Rajeev K. Goel
	Rajeev K. Goel
	Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Steven Pantelick, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of PubMatic, Inc.;

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 registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer 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 registrant 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 registrant, 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 registrant’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 registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’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 registrant’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 registrant’s internal control over financial reporting.

Dated: May 7, 2024	By: /s/ Steven Pantelick
	Steven Pantelick
	Chief Financial Officer
	(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO PURSUANT TO 18 U.S.C. SECTION 1350,

 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Rajeev K. Goel, Chief Executive Officer of PubMatic, Inc. (the “Company”), do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1)the Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended March 31, 2024 (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.

Dated: May 7, 2024	By: /s/ Rajeev K. Goel
	Rajeev K. Goel
	Chief Executive Officer
	(Principal Executive Officer)

The foregoing certification is not deemed filed with the Securities and Exchange Commission for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is not to be incorporated by reference into any filing of PubMatic, Inc. under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO PURSUANT TO 18 U.S.C. SECTION 1350,

 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Steven Pantelick, Chief Financial Officer of PubMatic, Inc. (the “Company”), do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1)the Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended March 31, 2024 (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.

Dated: May 7, 2024	By: /s/ Steven Pantelick
	Steven Pantelick
	Chief Financial Officer
	(Principal Financial Officer)

The foregoing certification is not deemed filed with the Securities and Exchange Commission for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is not to be incorporated by reference into any filing of PubMatic, Inc. under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

XML

Cover - shares	3 Months Ended
	Mar. 31, 2024	May 01, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-39748
Entity Registrant Name	PUBMATIC, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-5863224
Title of 12(b) Security	Class A common stock, $0.0001 par value per share
Trading Symbol	PUBM
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Amendment Flag	false
Entity Central Index Key	0001422930
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		41,452,195
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		8,478,816

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 80,194	$ 78,509
Marketable securities	93,887	96,835
Accounts receivable, net	303,284	375,468
Prepaid expenses and other current assets	11,540	11,143
Total current assets	488,905	561,955
Property, equipment and software, net	56,550	60,729
Operating lease right-of-use assets	23,473	21,102
Acquisition-related intangible assets, net	5,469	5,864
Goodwill	29,577	29,577
Deferred tax assets	18,547	13,880
Other assets, non-current	3,669	2,136
TOTAL ASSETS	626,190	695,243
Current liabilities
Accounts payable	289,176	347,673
Accrued liabilities	19,763	25,684
Operating lease liabilities, current	6,841	6,236
Total current liabilities	315,780	379,593
Operating lease liabilities, non-current	17,613	15,607
Other liabilities, non-current	4,067	3,844
TOTAL LIABILITIES	337,460	399,044
Commitments and contingencies (Note 8)
Stockholders' equity
Preferred stock, $0.0001 par value per share, 10,000 shares authorized as of March 31, 2024 and December 31, 2023; No shares issued and outstanding as of March 31, 2024 and December 31, 2023	0	0
Common stock, $0.0001 par value per share; 1,000,000 Class A shares authorized as of March 31, 2024 and December 31, 2023; $46,327 shares issued and $41,393 shares outstanding as of March 31, 2024; $45,542 shares issued and $41,502 shares outstanding as of December 31, 2023; 1,000,000 Class B shares authorized as of March 31, 2024 and December 31, 2023; $11,626 shares issued and $8,486 shares outstanding as of March 31, 2024; $11,884 shares issued and $8,744 shares outstanding as of December 31, 2023	6	6
Treasury stock, at cost; 8,074 and 7,180 shares as of March 31, 2024 and December 31, 2023, respectively	(86,857)	(71,103)
Additional paid-in capital	241,179	230,419
Accumulated other comprehensive loss	(25)	(4)
Retained earnings	134,427	136,881
TOTAL STOCKHOLDERS’ EQUITY	288,730	296,199
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 626,190	$ 695,243

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Thousands	Mar. 31, 2024	Dec. 31, 2023
Preferred stock par value (in usd per share)	$ 0.0001	$ 0.0001
Preferred stock shares authorized	10,000	10,000
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Treasury stock shares	8,074	7,180
Common Class A
Common stock par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock shares authorized	1,000,000	1,000,000
Common stock shares issued	46,327	45,542
Common stock shares outstanding	41,393	41,502
Common Class B
Common stock par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock shares authorized	1,000,000	1,000,000
Common stock shares issued	11,626	11,884
Common stock shares outstanding	8,486	8,744

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue	$ 66,701	$ 55,407
Cost of revenue	25,424	23,863
Gross profit	41,277	31,544
Operating expenses:
Technology and development	7,960	6,517
Sales and marketing	24,815	23,127
General and administrative	14,027	12,572
Total operating expenses	46,802	42,216
Operating loss	(5,525)	(10,672)
Interest income	2,564	1,891
Other income (expense), net	258	(465)
Loss before income taxes	(2,703)	(9,246)
Benefit from income taxes	(249)	(3,375)
Net loss	$ (2,454)	$ (5,871)
Earnings Per Share [Abstract]
Net income per share attributable to common stockholders – basic: (in usd per share)	$ (0.05)	$ (0.11)
Diluted net loss per share of Class A and Class B stock (in usd per share)	$ (0.05)	$ (0.11)
Weighted-average shares used to compute net loss per share attributable to common stockholders:
Basic (in shares)	50,039	52,740
Diluted (in shares)	50,039	52,740

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Other Comprehensive Income [Abstract]
Net loss	$ (2,454)	$ (5,871)
Other comprehensive income (loss):
Unrealized gain (loss) on marketable securities, net of tax	(21)	17
Comprehensive loss	$ (2,475)	$ (5,854)

XML

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2022		52,705
Beginning balance at Dec. 31, 2022	$ 312,188	$ 6	$ (11,486)	$ 195,677	$ (9)	$ 128,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	7,606			7,606
Exercise of stock options (in shares)		109
Exercise of stock options	314			314
Repurchase of shares (in shares)		(587)
Repurchase of shares	(7,898)		(7,898)
Issuance of common stock related to RSU vesting (in shares)		96
Other comprehensive income (loss)	17				17
Net loss	(5,871)					(5,871)
Ending balance (in shares) at Mar. 31, 2023		52,323
Ending balance at Mar. 31, 2023	306,356	$ 6	(19,384)	203,597	8	122,129
Beginning balance (in shares) at Dec. 31, 2023		50,246
Beginning balance at Dec. 31, 2023	296,199	$ 6	(71,103)	230,419	(4)	136,881
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 9,821			9,821
Exercise of stock options (in shares)	298	298
Exercise of stock options	$ 939			939
Repurchase of shares (in shares)		(895)
Repurchase of shares	(15,754)		(15,754)
Issuance of common stock related to RSU vesting (in shares)		230
Other comprehensive income (loss)	(21)				(21)
Net loss	(2,454)					(2,454)
Ending balance (in shares) at Mar. 31, 2024		49,879
Ending balance at Mar. 31, 2024	$ 288,730	$ 6	$ (86,857)	$ 241,179	$ (25)	$ 134,427

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Cash Flows [Abstract]
Net loss	$ (2,454)	$ (5,871)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	11,212	11,432
Stock-based compensation	9,111	7,059
Deferred income taxes	(4,667)	(4,327)
Accretion of discount on marketable securities	(1,234)	(1,057)
Non-cash operating lease expense	1,690	1,532
Other	(1)	(3)
Changes in operating assets and liabilities:
Accounts receivable	72,184	61,292
Prepaid expenses and other assets	(196)	894
Accounts payable	(58,444)	(55,387)
Accrued liabilities	(1,784)	(833)
Operating lease liabilities	(1,380)	(1,265)
Other liabilities, non-current	257	(712)
Net cash provided by operating activities	24,294	12,754
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(801)	(1,417)
Capitalized software development costs	(7,231)	(6,001)
Purchases of marketable securities	(34,336)	(40,343)
Proceeds from maturities of marketable securities	38,500	29,500
Net cash used in investing activities	(3,868)	(18,261)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment of business combination indemnification claims holdback	(2,148)	0
Proceeds from exercise of stock options	939	314
Principal payments on finance lease obligations	(32)	(31)
Payments to acquire treasury stock	(17,500)	(7,898)
Net cash used in financing activities	(18,741)	(7,615)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	1,685	(13,122)
CASH AND CASH EQUIVALENTS - Beginning of period	78,509	92,382
CASH AND CASH EQUIVALENTS - End of period	80,194	79,260
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Income taxes paid	1,033	349
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:
Stock-based compensation capitalized as internal-use software costs	710	547
Property and equipment included in accounts payable and accrued liabilities	148	1,311
Capitalized software costs included in accounts payable and accrued liabilities	917	820
Business combination purchase consideration - indemnification claims holdback	$ 0	$ 2,148

XML

Organization and Description of Business

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Description of Business

Organization and Description of Business

PubMatic, Inc. (together with its subsidiaries, the “Company” or “PubMatic”) was founded in 2006. The Company has offices worldwide. The Company provides a specialized cloud infrastructure platform that enables real-time programmatic advertising transactions. The purpose-built technology and infrastructure provides superior outcomes for both publishers and advertisers leveraging an efficient design, machine learning, and data processing capabilities, with customer alignment and global omnichannel reach.

XML

Basis of Presentation and Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation and Summary of Significant Accounting Policies

Fiscal Year

The Company’s fiscal year ends on December 31, and its fiscal quarters end on March 31, June 30, September 30, and December 31. References to fiscal year 2024, for example, refer to the fiscal year ending December 31, 2024.

Unaudited Interim Condensed Consolidated Financial Information

The unaudited condensed consolidated financial statements include the accounts of PubMatic, Inc. and its wholly owned subsidiaries, and have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and following the requirements of the Securities and Exchange Commission (“SEC”) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP can be condensed or omitted. These financial statements have been prepared on the same basis as the Company’s annual financial statements and, in the opinion of management, reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for the fair statement of the Company’s financial information. These interim results are not necessarily indicative of the results to be expected for the fiscal year ending December 31, 2024 or for any other interim period or for any other future year. The accompanying unaudited condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023, as filed with the SEC on February 28, 2024 (the “Annual Report”).

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared in accordance with GAAP. The accompanying condensed consolidated financial statements include the accounts of PubMatic, Inc. and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. Certain prior period amounts reported in our condensed consolidated financial statements and notes thereto have been reclassified to conform to the current period presentation.

Use of Estimates

The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenue and expenses.

The Company evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts those estimates and assumptions when facts and circumstances dictate. Actual results could materially differ from those estimates and assumptions. Due to the inherent uncertainty involved in making assumptions and estimates, events and changes in circumstances arising after March 31, 2024, may result in actual outcomes that differ from those contemplated by the Company’s assumptions and estimates.

Concentration of Revenue and Accounts Receivable

The Company defines its revenue concentration based on revenue recognized from individual publishers. For the three months ended March 31, 2024 and 2023, no publisher represented more than 10% and one publisher represented 11% of the Company’s revenue, respectively. As of March 31, 2024, three buyers accounted for 33%, 22%, and 11% respectively, of accounts receivable. As of December 31, 2023, three buyers accounted for 30%, 21%, and 14%, respectively, of accounts receivable.

Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recorded at the invoiced amount, are unsecured, and do not bear interest. The allowance for credit losses is based on the best estimate of the amount of probable credit losses in existing accounts receivable. The allowance for credit losses is determined based on historical collection experience and the review in each period of the status of the then outstanding accounts receivable, while taking into consideration current customer information, collection history, and other relevant data. Account balances are written off against the allowance when the Company believes it is probable the receivable will not be recovered.

The following table presents the changes in the allowance for credit losses (in thousands):

	Three Months Ended March 31,
	2024		2023
Allowance for credit losses, beginning balance	$	770	$	1,765
Increase in provision for expected credit losses	—		—
Write-offs	163		—
Allowance for credit losses, ending balance	$	933	$	1,765

Recent Accounting Pronouncements Not Yet Adopted

In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07 "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for our annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

In December 2023, FASB issued ASU 2023-09 "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

The following tables set forth the fair value of the Company’s financial assets and liabilities measured on a recurring basis by level within the fair value hierarchy (in thousands):

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	34,996	$	—	$	—	$	34,996
Commercial paper	—		3,980		—		3,980
Certificates of deposit	—		11,308		—		11,308
Cash equivalents	34,996		15,288		—		50,284
Commercial paper	—		47,835		—		47,835
U.S. Treasury and government debt securities	—		46,052		—		46,052
Marketable securities	—		93,887		—		93,887
Total financial assets	$	34,996	$	109,175	$	—	$	144,171
	December 31, 2023
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	42,126	$	—	$	—	$	42,126
Certificates of deposit	—		12,528		—		12,528
Cash equivalents	42,126		12,528		—		54,654
Commercial paper	—		50,962		—		50,962
Agency debt securities	—		2,995		—		2,995
U.S. Treasury and government debt securities	—		42,878		—		42,878
Marketable securities	—		96,835		—		96,835
Total financial assets	$	42,126	$	109,363	$	—	$	151,489

The Company’s financial assets consist of Level 1 and 2 assets. The Company had no Level 3 assets or liabilities for the periods presented. The Company classifies its cash equivalents and marketable securities within Level 1 or Level 2 because they are valued using either quoted market prices or inputs other than quoted prices which are directly or indirectly observable in the market, including readily-available pricing sources for the identical underlying security which may not be actively traded. The Company’s fixed income available-for-sale securities consist of high quality, investment grade securities from diverse issuers. The valuation techniques used to measure the fair value of the Company’s marketable securities were derived from non-binding market consensus prices that are corroborated by observable market data and quoted market prices for similar instruments.

XML

Balance Sheet Components

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Balance Sheet Components

Balance Sheet Components

Marketable Securities

The following tables summarize the Company’s marketable securities by significant investment categories (in thousands):

	March 31, 2024
	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Commercial paper	$	47,856	$	—	$	(21)	$	47,835
U.S. Treasury and government debt securities	46,052		1		(1)		46,052
Total	$	93,908	$	1	$	(22)	$	93,887
	December 31, 2023
	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Commercial paper	$	50,975	$	3	$	(16)	$	50,962
Agency debt securities	2,997		—		(2)		2,995
U.S. Treasury and government debt securities	42,867		12		(1)		42,878
Total	$	96,839	$	15	$	(19)	$	96,835

The remaining contractual maturity of all marketable securities was within one year as of March 31, 2024 and December 31, 2023. Realized gains and losses were not material for the three months ended March 31, 2024 and 2023. As of March 31, 2024 and 2023, there were no securities that were in an unrealized loss position for more than twelve months.

Property, Equipment and Software, Net

Property, equipment and software, net consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Internal-use software	$	62,149	$	56,257
Network hardware, computer equipment and software	137,757		137,709
Leasehold improvements	5,328		5,173
Furniture and fixtures	2,303		2,304
Property, equipment and software, gross	207,537		201,443
Less: accumulated depreciation and amortization	(150,987)		(140,714)
Total property, equipment and software, net	$	56,550	$	60,729

Depreciation and amortization expense related to property, equipment, and software (excluding amortization of internal-use software) was $6.6 million and $7.3 million for the three months ended March 31, 2024 and 2023, respectively.

The Company capitalized $5.9 million and $5.4 million in software development costs during the three months ended March 31, 2024 and 2023, respectively. Amortization expense of internal-use software was $4.2 million and $2.8 million during the three months ended March 31, 2024 and 2023, respectively. These costs are included within cost of revenue in the condensed consolidated statements of operations.

The Company did not recognize any impairment charges on its long-lived assets during the three months ended March 31, 2024 and 2023, respectively.

Accounts Payable

Accounts payable consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Payable to publishers	$	275,925	$	335,061
Trade and other payables	13,251		12,612
Total accounts payable	$	289,176	$	347,673

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Accrued compensation	$	11,350	$	18,784
Accrued and other current liabilities	8,413		6,900
Total accrued liabilities	$	19,763	$	25,684

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Senior Secured Credit Facilities Agreement

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Senior Secured Credit Facilities Agreement

Senior Secured Credit Facilities Agreement

On October 17, 2022, the Company entered into a Senior Secured Credit Facilities Credit Agreement (the “Credit Agreement”) with the several lenders parties thereto (the “Lenders”), and Silicon Valley Bank (“SVB”), as administrative agent, lead arranger, issuing lender, and swingline lender. The Credit Agreement matures on October 17, 2027.

The Credit Agreement provides a revolving credit facility in an aggregate principal amount of $110 million (“the Revolving Credit Facility”), including a $25 million letter of credit sub-facility and a $25 million swingline sub-facility. The Company’s obligations under the Revolving Credit Facility and the letter of credit sub-facility (described in Note 8) with SVB are secured by substantially all of its assets excluding its intellectual property. The Company may, subject to certain customary conditions, on one or more occasions increase commitments under the Revolving Credit Facility in an amount not to exceed $90 million in the aggregate (the “Incremental Facility”). Each Lender will have discretion to determine whether it will participate in any Incremental Facility.

Borrowings under the Revolving Credit Facility will accrue interest at rates equal, at the Company’s election, to (i) the applicable secured overnight financing rate (“SOFR”), plus the applicable margin for such loans, or (ii) the alternate base rate (“ABR”), which is defined as the highest of (a) the prime rate in effect from time to time, (b) the federal funds effective rate in effect from time to time plus 0.50%, and (c) the adjusted term SOFR for a one (1) month tenor in effect from time to time plus 1.00%, plus the applicable margin for such loans. The applicable margin for borrowings bearing interest on the SOFR ranges from 2.00% to 2.75%, and the applicable margin for borrowings bearing interest based on the ABR ranges from 1.00% to 1.75%. As of March 31, 2024, the applicable interest rate under the revolving credit facility was 9.50%. The Company will pay a quarterly commitment fee during the term of the Credit Agreement for the non-use of available funds ranging from 0.25% to 0.35%. In addition, the Credit Agreement provides a mechanism to determine a successor reference rate to the applicable reference rate if, among other things, the applicable reference rate becomes unavailable or is generally replaced as a benchmark interest rate.

The Credit Agreement contains customary representations and warranties as well as customary affirmative and negative covenants. Negative covenants include, among others, limitations on incurrence of indebtedness, liens, disposition of property and investments by the Company and its subsidiaries. In addition, the Credit Agreement requires the Company to maintain certain interest coverage, leverage and senior leverage ratios. To date, the Company is in compliance with the affirmative and negative covenants.

The Credit Agreement contains customary events of default. Upon the occurrence and during the continuance of an event of default, the Lenders may declare the outstanding advances and all other obligations under the Credit Agreement immediately due and payable.

The Company may use amounts borrowed under the Credit Agreement for general corporate purposes or working capital financing. The Company may borrow additional amounts under the Credit Agreement from time to time as opportunities and needs arise. As of March 31, 2024, the Company has not drawn down on the credit facility.

Following the SVB closure by the California Department of Financial Protection and Innovation on March 10, 2023, and its subsequent receivership by the Federal Deposit Insurance Corporation (“FDIC”), the FDIC announced that all of SVB’s deposits and substantially all of its assets had been transferred to a newly created, full-service FDIC-operated bridge bank, Silicon Valley Bridge Bank, N.A. (“SVBB”). On March 27, 2023, First Citizens Bank & Trust Company (“First Citizens”) acquired substantially all of the loans and certain other assets of the former SVB, and assumed all customer deposits and certain other liabilities of the former SVB. As such, First Citizen assumed SVB’s obligations under the Credit Agreement.

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Leases

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

Leases

Operating lease cost is recognized on a straight-line basis over the lease term. Finance lease cost is recognized as a combination of the amortization expense for the right-of-use assets and interest expense for the outstanding lease liabilities, and results in a front-loaded expense pattern over the lease term. Short-term and variable lease costs are not material to the Company’s condensed consolidated financial statements.

During the three months ended March 31, 2024, operating right-of-use assets obtained in exchange for new lease obligations was $4.0 million.

The components of lease cost were as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Operating lease cost	$	2,019	$	1,834
Finance lease cost	47		47
Total lease cost	$	2,066	$	1,881

As of March 31, 2024, a weighted average discount rate of 3.15% and 2.24% has been applied to the remaining operating and finance lease payments, respectively, to calculate the lease liabilities included within the condensed consolidated balance sheets. The weighted average remaining lease term of operating and finance leases is 3.7 and 4.0 years, respectively, as of March 31, 2024.

As of March 31, 2024, the maturities of lease liabilities under operating and finance leases were as follows (in thousands):

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	5,924	$	109	$	6,033
2025	6,348		149		6,497
2026	6,557		153		6,710
2027	5,211		158		5,369
2028	1,813		40		1,853
Total minimum lease payments	25,853		609		26,462
Less: imputed interest	(1,399)		(26)		(1,425)
Total present value of lease liabilities	$	24,454	$	583	$	25,037

Leases

Leases

Operating lease cost is recognized on a straight-line basis over the lease term. Finance lease cost is recognized as a combination of the amortization expense for the right-of-use assets and interest expense for the outstanding lease liabilities, and results in a front-loaded expense pattern over the lease term. Short-term and variable lease costs are not material to the Company’s condensed consolidated financial statements.

During the three months ended March 31, 2024, operating right-of-use assets obtained in exchange for new lease obligations was $4.0 million.

The components of lease cost were as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Operating lease cost	$	2,019	$	1,834
Finance lease cost	47		47
Total lease cost	$	2,066	$	1,881

As of March 31, 2024, a weighted average discount rate of 3.15% and 2.24% has been applied to the remaining operating and finance lease payments, respectively, to calculate the lease liabilities included within the condensed consolidated balance sheets. The weighted average remaining lease term of operating and finance leases is 3.7 and 4.0 years, respectively, as of March 31, 2024.

As of March 31, 2024, the maturities of lease liabilities under operating and finance leases were as follows (in thousands):

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	5,924	$	109	$	6,033
2025	6,348		149		6,497
2026	6,557		153		6,710
2027	5,211		158		5,369
2028	1,813		40		1,853
Total minimum lease payments	25,853		609		26,462
Less: imputed interest	(1,399)		(26)		(1,425)
Total present value of lease liabilities	$	24,454	$	583	$	25,037

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Acquisition-related Intangible Assets, Net

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Acquisition-related Intangible Assets, Net

Acquisition-related Intangible Assets, Net

Acquisition-related Intangible Assets, Net

Acquisition-related intangible assets, net consisted of the following (in thousands):

	March 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	7,900	$	2,431	$	5,469
Total acquisition-related intangible assets	$	7,900	$	2,431	$	5,469
	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	7,900	$	2,036	$	5,864
Customer relationships	1,000		1,000		—
Total acquisition-related intangible assets	$	8,900	$	3,036	$	5,864

The weighted average remaining useful life of developed technology was 3.5 years as of March 31, 2024. Amortization expense related to acquisition-related intangibles was $0.4 million and $1.3 million for the three months ended March 31, 2024 and 2023, respectively.

As of March 31, 2024, estimated future amortization expense for acquisition-related intangible assets was as follows (in thousands):

Remainder of 2024	$	1,185
2025	1,580
2026	1,580
2027	1,124
Total estimated future amortization expense for acquisition-related intangible assets	$	5,469

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Purchase Obligations

The Company’s purchase obligations primarily relate to minimum contractual payments due to data center providers. During the three months ended March 31, 2024, there were no material changes to the Company’s non-cancelable purchase obligations disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023.

Letters of Credit

As of March 31, 2024 and December 31, 2023, the Company had two irrevocable letters of credit outstanding related to non-cancelable facilities leases in the amounts of $3.5 million and $0.5 million, with annual automatic renewal and final expiration dates in July 2028 and April 2025, respectively.

Legal Matters

From time to time, the Company is or may be involved in various claims and other legal matters arising in the normal course of business. The Company records an accrual for a liability relating to claims and other legal matters when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Any such accruals are reviewed at least quarterly and adjusted for the impacts of negotiations, rulings, settlements, and other information or events pertaining to a particular matter, or on the advice of legal counsel. To date, the Company has not incurred a material loss, or a material loss in excess of a recorded accrual, with respect to any claims and other legal matters arising in the normal course of business. However, the outcomes of claims and other legal matters are inherently unpredictable and subject to significant uncertainties. If the Company subsequently concludes that there is a reasonable possibility that a loss exceeding amounts already recognized may be incurred, and the amount of such additional loss would be material, the Company will either disclose the estimated additional loss or state that such an estimate cannot be made.

Indemnification

In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and provide for general indemnification. The Company’s exposure under these agreements is unknown because it involves future claims that may be made against the Company but have not yet been made. To date, the Company has not paid any material claims or been required to defend any actions related to its indemnification obligations. However, the Company may record charges in the future as a result of these indemnification obligations. In addition, the Company has indemnification agreements with certain of its directors and executive officers that require it, among other things, to indemnify them against certain liabilities that may arise due to their status or service as directors or officers of the Company. The terms of such obligations may vary

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Stockholders’ Equity and Stock Option Plans

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Stockholders’ Equity and Equity Incentive Plans

Stockholders’ Equity and Equity Incentive Plans

Share Repurchases

In February 2023, the Company’s board of directors authorized the Company to repurchase up to $75 million of its Class A common stock (“2023 Repurchase Program”). In February 2024, the Company’s board of directors authorized the Company to repurchase up to an additional $100 million of its Class A common stock (“2024 Repurchase Program”) in addition to the $75 million previously authorized under the 2023 Repurchase Program. As of March 31, 2024, $100.0 million remains available for repurchases. Shares are repurchased in a manner deemed in the best interest of the Company and its stockholders, dependent upon business, economic and market conditions, corporate and regulatory requirements, prevailing stock prices and other considerations.

During the three months ended March 31, 2024, the Company repurchased 894,651 aggregate shares of Class A common stock for $15.7 million.

Repurchases are executed from time to time, subject to general business and market conditions and other investment opportunities, through open market purchases or privately negotiated transactions, in accordance with Rule 10b-18 and/or Rule 10b5-1 of the Exchange Act. The 2023 Repurchase Program is scheduled to terminate on December 31, 2024, while the 2024 Repurchase Program is scheduled to terminate on December 31, 2025.

Equity Incentive Plans

The Company maintains the 2020 Equity Incentive Plan (“2020 Plan”), pursuant to which the Company may grant stock options, restricted stock awards, stock appreciation rights, restricted stock units (“RSUs”), deferred stock units (“DSUs”) performance awards, and stock bonus awards. As of March 31, 2024, the Company has reserved 3,025,245 shares of Class A common stock for the issuance of awards under the 2020 Plan. These available shares will increase automatically on January 1 for each of the first ten calendar years during the term of the 2020 Plan by the number of shares equal to the lesser of five percent (5%) of the aggregate number of outstanding shares of all classes of the Company’s common stock outstanding as of the immediately preceding December 31, or a number as may be determined by the Company’s board of directors or compensation committee. No new awards were issued under the Company’s prior 2006 Plan or 2017 Plan (“Prior Plans”) after the effective date of the 2020 Plan. To the extent outstanding awards under the 2006 Plan and the 2017 Plan are forfeited, expire unexercised, or would otherwise have been returned to the share reserve under the Prior Plans, the shares of Class B common stock subject to such awards instead will be available for future issuance as Class A common stock under the 2020 Plan.

Stock Options

The following table summarizes stock option activity and related information under the Company’s equity incentive plans:

	Stock Options
	Number of Shares Underlying Outstanding Options (in thousands)	Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2023	7,079	$	9.02	5.78	$	67,418
Options granted	1,544	15.46
Options exercised	(298)	3.16
Options canceled	(14)	1.25
Outstanding as of March 31, 2024	8,311	$	10.44	6.32	$	118,987
Vested and exercisable as of March 31, 2024	5,543	$	7.32	5.01	$	97,522

As of March 31, 2024, unrecognized stock-based compensation of $25.5 million related to unvested stock options will be recognized on a straight-line basis over a weighted average period of 2.92 years.

Restricted Stock Units

The following table summarizes RSU activity and related information under the Company’s 2020 Plan:

	RSUs
	Number of Shares (in thousands)	Weighted-Average Grant Date Fair Value per Share
Unvested as of December 31, 2023	2,934	$	19.49
Granted	2,038	15.95
Vested	(230)	20.92
Canceled or forfeited	(118)	17.22
Unvested as of March 31, 2024	4,624	$	17.92

As of March 31, 2024, unrecognized stock-based compensation of $75.2 million related to unvested RSUs will be recognized on a straight-line basis over a weighted average period of 3.00 years.

2020 Employee Stock Purchase Plan

In November 2020, the Company’s board of directors adopted, and its stockholders approved, the 2020 Employee Stock Purchase Plan (“ESPP”).

The aggregate number of shares reserved for issuance under the ESPP increases automatically on January 1st of each of the first ten calendar years during the term of the ESPP by the number of shares equal to the lesser of (a) 1% of the total outstanding shares of all classes of the Company’s common stock as of the immediately preceding December 31, and (b) such number of shares of common stock as determined by the Company’s board of directors. The aggregate number of shares issued over the term of the ESPP may not exceed 7,500,000 shares of Class A common stock. As of March 31, 2024, the Company had reserved 401,599 shares of its Class A common stock for issuance under the ESPP.

Under the ESPP, Class A common stock will be purchased for the accounts of employees participating in the ESPP on each purchase date at a price per share equal to 85% of the lesser of: (a) the fair market value on the offering date or (b) the fair market value on the purchase date. The ESPP provides for, at maximum, 27 month offering periods and each offering period may consist of one or more six-month purchase periods, whereby the latest offering period commenced on June 1, 2022, and the offering periods thereafter consist of two six-month purchase periods ending May 31, 2023. As of March 31, 2024, $1.1 million has been withheld on behalf of employees for a future purchase under the ESPP due to the timing of payroll deductions and is included in accrued liabilities. For the three months ended March 31, 2024 and 2023, no shares of our Class A common stock were purchased under the ESPP.

As of March 31, 2024, unrecognized stock-based compensation expense related to the ESPP was $0.2 million, which is expected to be recognized over a weighted-average period of 0.17 years.

Stock-Based Compensation

Total stock-based compensation expense recognized in the condensed consolidated statements of operations was as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Cost of revenue	$	437	$	316
Technology and development	1,441		1,008
Sales and marketing	3,238		2,709
General and administrative	3,995		3,026
Total stock-based compensation expense	9,111		7,059
Tax benefit from stock-based compensation	(1,886)		(1,318)
Total stock-based compensation expense, net of tax effect	$	7,225	$	5,741

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Net Loss Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Net Loss Per Share

Net Loss Per Share

The Company has two classes of common stock, Class A and Class B. Basic and diluted earnings per share (“EPS”) attributable to common stockholders for Class A and Class B common stock were the same because they were entitled to the same liquidation and dividend rights.

The following table sets forth the computation of the Company’s basic and diluted net loss per share (in thousands, except per share data):

	Three Months Ended March 31,
	2024		2023
Numerator:
Net loss	$	(2,454)	$	(5,871)
Denominator:
Weighted average shares outstanding – basic and diluted	50,039		52,740
Net loss per share – basic and diluted	$	(0.05)	$	(0.11)

The following weighted-average outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive (in thousands):

	Three Months Ended March 31,
	2024	2023
Options to purchase common stock	3,344	1,892
Unvested restricted stock units	7	2,451
ESPP	—	92
Total common stock equivalents excluded from net loss per share – diluted	3,351	4,435

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Income Taxes

3 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company has historically calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate ("AETR") for the full fiscal year to “ordinary” income or loss (pretax income or loss excluding unusual or infrequently occurring discrete items) for the reporting period. The discrete effective tax rate method has been used to calculate taxes for the fiscal three months ended March 31, 2024. The Company has determined that since small changes in estimated “ordinary” income would result in significant changes in the estimated AETR, the historical method would not provide a reliable estimate for the fiscal three months ended March 31, 2024.

The Company recorded a benefit from income taxes of $0.2 million and $3.4 million for the three months ended March 31, 2024 and 2023, respectively.

The effective income tax rate was 9% and 37% for the three months ended March 31, 2024 and 2023, respectively. The benefit from income taxes for the three months ended March 31, 2024 is related to tax benefits from foreign-derived intangible income (FDII), research tax credits, and deductions for equity awards, offset by nondeductible stock-based compensation and Section 162(m) limitation on the tax deductibility of officers’ compensation.

Realization of the Company’s deferred tax assets is dependent primarily on the generation of future taxable income. In considering the need for a valuation allowance, the Company considers its historical, as well as future projected, taxable income along with other objectively verifiable evidence. Objectively verifiable evidence includes the Company’s realization of tax attributes, assessment of tax credits, and utilization of net operating loss carryforwards during the year.

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Segment Information

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Segment Information

Segment Information

The following table presents total revenue by geographic area based on the publisher’s billing address (in thousands):

	Three Months Ended March 31,
	2024		2023
United States	$	40,507	$	32,640
EMEA	20,144		17,844
APAC	4,967		3,978
Rest of the world	1,083		945
Total	$	66,701	$	55,407

The following table presents long-lived assets, net, which consist primarily of property and equipment and operating lease right-of-use assets, by geographic area (in thousands):

	March 31, 2024		December 31, 2023
United States	$	63,354	$	68,299
Rest of the world	16,669		13,532
Total	$	80,023	$	81,831

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401(k) Plan	3 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
401(k) Plan	401(k) PlanThe Company has a 401(k) Savings Plan (the “401(k) Plan”) that qualifies as a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating employees may elect to contribute up to 100% of their eligible compensation, subject to certain limitations. The 401(k) Plan provides for a discretionary employer matching contribution. The Company made $0.5 million and $0.4 million in matching contributions to the 401(k) Plan for the three months ended March 31, 2024 and 2023

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net loss	$ (2,454)	$ (5,871)

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Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Basis of Presentation and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared in accordance with GAAP. The accompanying condensed consolidated financial statements include the accounts of PubMatic, Inc. and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. Certain prior period amounts reported in our condensed consolidated financial statements and notes thereto have been reclassified to conform to the current period presentation.

Use of Estimates

Use of Estimates

The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenue and expenses.

The Company evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts those estimates and assumptions when facts and circumstances dictate. Actual results could materially differ from those estimates and assumptions. Due to the inherent uncertainty involved in making assumptions and estimates, events and changes in circumstances arising after March 31, 2024, may result in actual outcomes that differ from those contemplated by the Company’s assumptions and estimates.

Concentration of Revenue and Accounts Receivable

Concentration of Revenue and Accounts Receivable

The Company defines its revenue concentration based on revenue recognized from individual publishers

Recently Adopted Accounting Pronouncements

Recent Accounting Pronouncements Not Yet Adopted

In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07 "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for our annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

In December 2023, FASB issued ASU 2023-09 "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

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Basis of Presentation and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Accounts Receivable, Allowance for Credit Loss

The following table presents the changes in the allowance for credit losses (in thousands):

	Three Months Ended March 31,
	2024		2023
Allowance for credit losses, beginning balance	$	770	$	1,765
Increase in provision for expected credit losses	—		—
Write-offs	163		—
Allowance for credit losses, ending balance	$	933	$	1,765

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following tables set forth the fair value of the Company’s financial assets and liabilities measured on a recurring basis by level within the fair value hierarchy (in thousands):

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	34,996	$	—	$	—	$	34,996
Commercial paper	—		3,980		—		3,980
Certificates of deposit	—		11,308		—		11,308
Cash equivalents	34,996		15,288		—		50,284
Commercial paper	—		47,835		—		47,835
U.S. Treasury and government debt securities	—		46,052		—		46,052
Marketable securities	—		93,887		—		93,887
Total financial assets	$	34,996	$	109,175	$	—	$	144,171
	December 31, 2023
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	42,126	$	—	$	—	$	42,126
Certificates of deposit	—		12,528		—		12,528
Cash equivalents	42,126		12,528		—		54,654
Commercial paper	—		50,962		—		50,962
Agency debt securities	—		2,995		—		2,995
U.S. Treasury and government debt securities	—		42,878		—		42,878
Marketable securities	—		96,835		—		96,835
Total financial assets	$	42,126	$	109,363	$	—	$	151,489

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Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Debt Securities, Available-for-sale

The following tables summarize the Company’s marketable securities by significant investment categories (in thousands):

	March 31, 2024
	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Commercial paper	$	47,856	$	—	$	(21)	$	47,835
U.S. Treasury and government debt securities	46,052		1		(1)		46,052
Total	$	93,908	$	1	$	(22)	$	93,887
	December 31, 2023
	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Commercial paper	$	50,975	$	3	$	(16)	$	50,962
Agency debt securities	2,997		—		(2)		2,995
U.S. Treasury and government debt securities	42,867		12		(1)		42,878
Total	$	96,839	$	15	$	(19)	$	96,835

Property, Plant and Equipment

Property, equipment and software, net consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Internal-use software	$	62,149	$	56,257
Network hardware, computer equipment and software	137,757		137,709
Leasehold improvements	5,328		5,173
Furniture and fixtures	2,303		2,304
Property, equipment and software, gross	207,537		201,443
Less: accumulated depreciation and amortization	(150,987)		(140,714)
Total property, equipment and software, net	$	56,550	$	60,729

Schedule of Accounts Payable and Accrued Liabilities

Accounts payable consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Payable to publishers	$	275,925	$	335,061
Trade and other payables	13,251		12,612
Total accounts payable	$	289,176	$	347,673

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	March 31, 2024		December 31, 2023
Accrued compensation	$	11,350	$	18,784
Accrued and other current liabilities	8,413		6,900
Total accrued liabilities	$	19,763	$	25,684

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Leases (Tables)

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Lease, Cost

The components of lease cost were as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Operating lease cost	$	2,019	$	1,834
Finance lease cost	47		47
Total lease cost	$	2,066	$	1,881

Lessee, Operating Lease, Liability, Maturity

As of March 31, 2024, the maturities of lease liabilities under operating and finance leases were as follows (in thousands):

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	5,924	$	109	$	6,033
2025	6,348		149		6,497
2026	6,557		153		6,710
2027	5,211		158		5,369
2028	1,813		40		1,853
Total minimum lease payments	25,853		609		26,462
Less: imputed interest	(1,399)		(26)		(1,425)
Total present value of lease liabilities	$	24,454	$	583	$	25,037

Finance Lease, Liability, Fiscal Year Maturity

As of March 31, 2024, the maturities of lease liabilities under operating and finance leases were as follows (in thousands):

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	5,924	$	109	$	6,033
2025	6,348		149		6,497
2026	6,557		153		6,710
2027	5,211		158		5,369
2028	1,813		40		1,853
Total minimum lease payments	25,853		609		26,462
Less: imputed interest	(1,399)		(26)		(1,425)
Total present value of lease liabilities	$	24,454	$	583	$	25,037

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Acquisition-related Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Acquired Indefinite-Lived Intangible Assets by Major Class

Acquisition-related intangible assets, net consisted of the following (in thousands):

	March 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	7,900	$	2,431	$	5,469
Total acquisition-related intangible assets	$	7,900	$	2,431	$	5,469
	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	7,900	$	2,036	$	5,864
Customer relationships	1,000		1,000		—
Total acquisition-related intangible assets	$	8,900	$	3,036	$	5,864

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

As of March 31, 2024, estimated future amortization expense for acquisition-related intangible assets was as follows (in thousands):

Remainder of 2024	$	1,185
2025	1,580
2026	1,580
2027	1,124
Total estimated future amortization expense for acquisition-related intangible assets	$	5,469

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Stockholders’ Equity and Stock Option Plans (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

The following table summarizes stock option activity and related information under the Company’s equity incentive plans:

	Stock Options
	Number of Shares Underlying Outstanding Options (in thousands)	Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2023	7,079	$	9.02	5.78	$	67,418
Options granted	1,544	15.46
Options exercised	(298)	3.16
Options canceled	(14)	1.25
Outstanding as of March 31, 2024	8,311	$	10.44	6.32	$	118,987
Vested and exercisable as of March 31, 2024	5,543	$	7.32	5.01	$	97,522

The following table summarizes RSU activity and related information under the Company’s 2020 Plan:

	RSUs
	Number of Shares (in thousands)	Weighted-Average Grant Date Fair Value per Share
Unvested as of December 31, 2023	2,934	$	19.49
Granted	2,038	15.95
Vested	(230)	20.92
Canceled or forfeited	(118)	17.22
Unvested as of March 31, 2024	4,624	$	17.92

Share-based Payment Arrangement, Expensed and Capitalized, Amount

Total stock-based compensation expense recognized in the condensed consolidated statements of operations was as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Cost of revenue	$	437	$	316
Technology and development	1,441		1,008
Sales and marketing	3,238		2,709
General and administrative	3,995		3,026
Total stock-based compensation expense	9,111		7,059
Tax benefit from stock-based compensation	(1,886)		(1,318)
Total stock-based compensation expense, net of tax effect	$	7,225	$	5,741

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Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Earnings per Share, Basic, by Common Class, Including Two Class Method

The following table sets forth the computation of the Company’s basic and diluted net loss per share (in thousands, except per share data):

	Three Months Ended March 31,
	2024		2023
Numerator:
Net loss	$	(2,454)	$	(5,871)
Denominator:
Weighted average shares outstanding – basic and diluted	50,039		52,740
Net loss per share – basic and diluted	$	(0.05)	$	(0.11)

Schedule of Earnings per Share, Diluted, by Common Class, Including Two Class Method

The following table sets forth the computation of the Company’s basic and diluted net loss per share (in thousands, except per share data):

	Three Months Ended March 31,
	2024		2023
Numerator:
Net loss	$	(2,454)	$	(5,871)
Denominator:
Weighted average shares outstanding – basic and diluted	50,039		52,740
Net loss per share – basic and diluted	$	(0.05)	$	(0.11)

Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share

The following weighted-average outstanding shares of common stock equivalents were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive (in thousands):

	Three Months Ended March 31,
	2024	2023
Options to purchase common stock	3,344	1,892
Unvested restricted stock units	7	2,451
ESPP	—	92
Total common stock equivalents excluded from net loss per share – diluted	3,351	4,435

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The following table presents total revenue by geographic area based on the publisher’s billing address (in thousands):

	Three Months Ended March 31,
	2024		2023
United States	$	40,507	$	32,640
EMEA	20,144		17,844
APAC	4,967		3,978
Rest of the world	1,083		945
Total	$	66,701	$	55,407

The following table presents long-lived assets, net, which consist primarily of property and equipment and operating lease right-of-use assets, by geographic area (in thousands):

	March 31, 2024		December 31, 2023
United States	$	63,354	$	68,299
Rest of the world	16,669		13,532
Total	$	80,023	$	81,831

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Basis of Presentation and Summary of Significant Accounting Policies - Concentration Risk Percentage (Details) - Customer Concentration Risk	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Revenue Benchmark | One Publisher
Concentration Risk [Line Items]
Concentration risk, percentage	11.00%
Accounts Receivable | Buyer One
Concentration Risk [Line Items]
Concentration risk, percentage	33.00%	30.00%
Accounts Receivable | Buyer Two
Concentration Risk [Line Items]
Concentration risk, percentage	22.00%	21.00%
Accounts Receivable | Buyer Three
Concentration Risk [Line Items]
Concentration risk, percentage	11.00%	14.00%

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Basis of Presentation and Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 770	$ 1,765
Increase in provision for expected credit losses	0	0
Write-offs	163	0
Allowance for credit losses, ending balance	$ 933	$ 1,765

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Fair Value Measurements (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	$ 93,887	$ 96,835
Total financial assets	144,171	151,489
Cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	50,284	54,654
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	34,996	42,126
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	3,980
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	11,308	12,528
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
Total financial assets	34,996	42,126
Level 1 | Cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	34,996	42,126
Level 1 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	34,996	42,126
Level 1 | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	0
Level 1 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	93,887	96,835
Total financial assets	109,175	109,363
Level 2 | Cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	15,288	12,528
Level 2 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	0	0
Level 2 | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	3,980
Level 2 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	11,308	12,528
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
Total financial assets	0	0
Level 3 | Cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	0	0
Level 3 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	0	0
Level 3 | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	0
Level 3 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	0	0
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	47,835	50,962
Commercial paper | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
Commercial paper | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	47,835	50,962
Commercial paper | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
Agency debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value		2,995
Agency debt securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value		0
Agency debt securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value		2,995
Agency debt securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value		0
U.S. Treasury and government debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	46,052	42,878
U.S. Treasury and government debt securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	0	0
U.S. Treasury and government debt securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	46,052	42,878
U.S. Treasury and government debt securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities, fair value	$ 0	$ 0

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Balance Sheet Components - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 93,908	$ 96,839
Unrealized Gain	1	15
Unrealized Loss	(22)	(19)
Marketable securities	93,887	96,835
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	47,856	50,975
Unrealized Gain	0	3
Unrealized Loss	(21)	(16)
Marketable securities	47,835	50,962
Agency debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		2,997
Unrealized Gain		0
Unrealized Loss		(2)
Marketable securities		2,995
U.S. Treasury and government debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	46,052	42,867
Unrealized Gain	1	12
Unrealized Loss	(1)	(1)
Marketable securities	$ 46,052	$ 42,878

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Balance Sheet Components - Schedule of Property, Equipment and Software, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	$ 207,537	$ 201,443
Less: accumulated depreciation and amortization	(150,987)	(140,714)
Property, equipment and software, net	56,550	60,729
Internal-use software
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	62,149	56,257
Network hardware, computer equipment and software
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	137,757	137,709
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	5,328	5,173
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	$ 2,303	$ 2,304

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Balance Sheet Components - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Property, Plant and Equipment [Line Items]
Depreciation, depletion and amortization	$ 6,600,000	$ 7,300,000
Capitalized computer software additions	5,900,000	5,400,000
Capitalized Computer Software, Impairments	0	0
Internal-use software
Property, Plant and Equipment [Line Items]
Amortization	$ 4,200,000	$ 2,800,000

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Balance Sheet Components - Schedule of Accounts Payable (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Payable to publishers	$ 275,925	$ 335,061
Trade and other payables	13,251	12,612
Total accounts payable	$ 289,176	$ 347,673

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Balance Sheet Components - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued compensation	$ 11,350	$ 18,784
Accrued and other current liabilities	8,413	6,900
Accrued liabilities	$ 19,763	$ 25,684

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Senior Secured Credit Facilities Agreement (Details) - Revolving Credit Facility - Credit Agreement $ in Millions	Oct. 17, 2022 USD ($)
Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 110.0
Line of credit facility, accordion feature, increase limit	$ 90.0
Line of Credit | Minimum
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.25%
Line of Credit | Maximum
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.35%
Line of Credit | Fed Funds Effective Rate Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	0.50%
Line of Credit | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.00%
Line of Credit | Secured Overnight Financing Rate (SOFR) | Minimum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.00%
Line of Credit | Secured Overnight Financing Rate (SOFR) | Maximum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.75%
Line of Credit | Alternate Base Rate | Minimum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.00%
Line of Credit | Alternate Base Rate | Maximum
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.75%
Line of Credit | Applicable Interest Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	9.50%
Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 25.0
Swingline Sub-Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 25.0

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Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating lease cost	$ 2,019	$ 1,834
Finance lease cost	47	47
Total lease cost	$ 2,066	$ 1,881

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Leases - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Leases [Abstract]
Operating lease right-of-use assets obtained in exchange for new lease obligations	$ 4.0
Operating leases	3.15%
Finance leases	2.24%
Operating lease term	3 years 8 months 12 days
Finance lease term	4 years

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Leases - Lease Maturity (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Operating Leases
Remainder of 2024	$ 5,924
2025	6,348
2026	6,557
2027	5,211
2028	1,813
Total minimum lease payments	25,853
Less: imputed interest	(1,399)
Total present value of lease liabilities	24,454
Finance Leases
Remainder of 2024	109
2025	149
2026	153
2027	158
2028	40
Total minimum lease payments	609
Less: imputed interest	(26)
Total present value of lease liabilities	583
Total
Remainder of 2024	6,033
2025	6,497
2026	6,710
2027	5,369
2028	1,853
Total minimum lease payments	26,462
Less: imputed interest	(1,425)
Total present value of lease liabilities	$ 25,037

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Acquisition-related Intangible Assets, Net - Acquisition-Related Intangible Assets, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,900	$ 8,900
Accumulated Amortization	2,431	3,036
Net Carrying Amount	5,469	5,864
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,900	7,900
Accumulated Amortization	2,431	2,036
Net Carrying Amount	$ 5,469	5,864
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		1,000
Accumulated Amortization		1,000
Net Carrying Amount		$ 0

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Acquisition-related Intangible Assets, Net - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 0.4	$ 1.3
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	3 years 6 months

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Acquisition-related Intangible Assets, Net - Estimated Future Amortization (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2024	$ 1,185
2025	1,580
2026	1,580
2027	1,124
Net Carrying Amount	$ 5,469	$ 5,864

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Commitments and Contingencies - Narrative (Details) $ in Millions	Mar. 31, 2024 USD ($) instrument	Dec. 31, 2023 USD ($) instrument
Other Commitments [Line Items]
Number of letters of credit | instrument	2	2
Irrevocable Letters of Credit due July 2028
Other Commitments [Line Items]
Letters of credit outstanding, amount	$ 3.5
Irrevocable Letters of Credit due April 2025
Other Commitments [Line Items]
Letters of credit outstanding, amount		$ 0.5

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Stockholders’ Equity and Stock Option Plans - Narrative (Details) $ in Millions				3 Months Ended
	May 31, 2023 purchasePeriod	Jun. 01, 2022 purchasePeriod	Nov. 30, 2020 shares	Mar. 31, 2024 USD ($) calendarYear shares	Feb. 29, 2024 USD ($)	Feb. 28, 2023 USD ($)
Class of Stock [Line Items]
Number of calendar years | calendarYear				10
Discount from market price, purchase date				5.00%
Number of purchase periods | purchasePeriod	2	1
Amount withheld for employee stock purchase plan				$ 1.1
Share-based Payment Arrangement, Option
Class of Stock [Line Items]
Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount				$ 25.5
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition				2 years 11 months 1 day
Unvested restricted stock units
Class of Stock [Line Items]
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition				3 years
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount				$ 75.2
ESPP
Class of Stock [Line Items]
Common stock reserved for issuance (in shares) | shares				401,599
Number of calendar years | calendarYear				10
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition				2 months 1 day
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount				$ 0.2
Percentage of outstanding stock maximum			1.00%
Discount from market price, purchase date				85.00%
Offering period				27 months
Purchase period	6 months	6 months
Common Class A
Class of Stock [Line Items]
Common stock reserved for issuance (in shares) | shares				3,025,245
Issuance of common stock related to employee stock purchase plan (in shares) | shares				0
Common Class A | ESPP
Class of Stock [Line Items]
Number of shares authorized | shares			7,500,000
2023 Repurchase Program
Class of Stock [Line Items]
Stock repurchase program, authorized amount						$ 75.0
Stock repurchase program, remaining authorized repurchase amount				$ 100.0
Stock repurchased and retired during period (in shares) | shares				894,651
Stock repurchased and retired during period, value				$ 15.7
2024 Repurchase Program
Class of Stock [Line Items]
Stock repurchase program, authorized amount					$ 100.0

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Stockholders’ Equity and Stock Option Plans - Summary of Stock Option Activity and Related Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Number of Shares Underlying Outstanding Options (in thousands)
Beginning balance (in shares)	7,079
Options granted (in shares)	1,544
Options exercised (in shares)	(298)
Options canceled (in shares)	(14)
Ending balance (in shares)	8,311	7,079
Vested (in shares)	5,543
Weighted-Average Exercise Price
Beginning balance (in usd per share)	$ 9.02
Options granted (in usd per share)	15.46
Options exercised (in usd per share)	3.16
Options canceled (in usd per share)	1.25
Ending balance (in usd per share)	10.44	$ 9.02
Vested (in usd per share)	$ 7.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual term (years)	6 years 3 months 25 days	5 years 9 months 10 days
Weighted average remaining contractual term vested (in years)	5 years 3 days
Aggregate intrinsic value, awards outstanding	$ 118,987	$ 67,418
Aggregate intrinsic value, vested	$ 97,522

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Stockholders’ Equity and Stock Option Plans - Summary of Restricted Stock Units and Related Information (Details) - Unvested restricted stock units shares in Thousands	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Number of Shares Underlying Outstanding Options (in thousands)
Unvested beginning balance (in shares) | shares	2,934
Granted (in shares) | shares	2,038
Vested (in shares) | shares	(230)
Canceled/Forfeited (in shares) | shares	(118)
Unvested ending balance (in shares) | shares	4,624
Weighted-Average Exercise Price
Unvested beginning balance (in usd per share) | $ / shares	$ 19.49
Granted (in usd per share) | $ / shares	15.95
Vested (in usd per share) | $ / shares	20.92
Canceled/Forfeited (in usd per share) | $ / shares	17.22
Unvested ending balance (in usd per share) | $ / shares	$ 17.92

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Stockholders’ Equity and Stock Option Plans - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 9,111	$ 7,059
Tax benefit from stock-based compensation	(1,886)	(1,318)
Total stock-based compensation expense, net of tax effect	7,225	5,741
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	437	316
Technology and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	1,441	1,008
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	3,238	2,709
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 3,995	$ 3,026

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Net Loss Per Share - Basic and Diluted Net Income per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net loss	$ (2,454)	$ (5,871)
Denominator:
Weighted average common shares outstanding – basic (in shares)	50,039	52,740
Weighted average common shares outstanding – diluted (in shares)	50,039	52,740
Net loss per share – diluted (in usd per share)	$ (0.05)	$ (0.11)
Net loss per share – diluted (in usd per share)	$ (0.05)	$ (0.11)

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Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Total common stock equivalents excluded from net income per share attributable to common stockholders – diluted (in shares)	3,351	4,435
Options to purchase common stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Total common stock equivalents excluded from net income per share attributable to common stockholders – diluted (in shares)	3,344	1,892
Unvested restricted stock units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Total common stock equivalents excluded from net income per share attributable to common stockholders – diluted (in shares)	7	2,451
ESPP
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Total common stock equivalents excluded from net income per share attributable to common stockholders – diluted (in shares)	0	92

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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Benefit from income taxes	$ (249)	$ (3,375)
Effective income tax rate reconciliation, percent	9.00%	37.00%

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Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 66,701	$ 55,407
Total	80,023		$ 81,831
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	40,507	32,640
Total	63,354		68,299
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	20,144	17,844
APAC
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	4,967	3,978
Rest of the world
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,083	$ 945
Total	$ 16,669		$ 13,532

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401(k) Plan - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Retirement Benefits [Abstract]
Defined contribution plan, maximum annual contributions per employee, percent	100.00%
Defined contribution plan, employer discretionary contribution amount	$ 0.5	$ 0.4