Skip to content
KStart free
AI InfrastructureDefenseQuantumAll studies →

MGNI US Equity

Magnite, Inc.Information Technology · Services-Computer Programming, Data Processing, Etc. · CIK 1595974 · FY ends Dec 31
$23.50
+0.15 (+0.64%)
USD · as of 2026-08-21 · marketstack

MGNI · 10-K · period ended 2023-12-31

← all MGNI documents
filed 2024-02-28 · EDGAR original ↗

Our rendering of the filing — original pagination and typography are not reproduced, and tables are reduced to their short label cells (the figures live on FA). Nothing is summarized: every line below is the filing's own text.

blocks 6441,243 of 1,710441k characters rendered

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations in conjunction with the consolidated financial statements and the related notes to those statements included in Item 8 to this Annual Report on Form 10-K. In addition to historical financial information, the following discussion contains forward-looking statements that reflect our plans, estimates, beliefs, and expectations and that involve risks and uncertainties. Our actual results and the timing of events could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to these differences include those discussed below and elsewhere in this Annual Report on Form 10-K, particularly in "Item 1A. Risk Factors" and the "Special Note About Forward-Looking Statements."

Overview and Trends

See "Item 1. Business" for an overview of our business, the industry in which we operate, and important industry trends.

Recent Developments

SpotX and SpringServe Acquisitions

On April 30, 2021, we completed the acquisition of SpotX, Inc. ("SpotX" and such acquisition the "SpotX Acquisition"), a leading platform shaping connected television ("CTV") and video advertising globally. On July 1, 2021, we acquired SpringServe, LLC ("SpringServe"), a leading ad serving platform for CTV.

Following these transactions, we believe that we are the world's largest independent omni-channel sell-side advertising platform ("SSP"), offering a single partner for transacting globally across all channels, formats and auction types, and the largest independent programmatic CTV marketplace, making it easier for buyers to reach CTV audiences at scale from industry-leading streaming content providers, broadcasters, platforms and device manufacturers.

As CTV viewership is growing rapidly and the pace of adoption is accelerating the shift of advertising budgets from linear television to CTV, these transactions have strategically positioned us to take advantage of this trend, and we believe that CTV will be our biggest growth driver for 2024.

The SpotX Acquisition resulted in a significant increase in our revenue and Contribution ex-TAC (as defined in section "Key Operating and Financial Performance Metrics"), in particular in CTV and online video. Following the transaction, the percentage of our revenue attributable to CTV increased significantly, and because CTV is largely transacted through reserve auctions, these types of auctions have become a more significant portion of the transactions on our platform. In addition, as newer entrants to programmatic advertising, the largest publishers and broadcasters have tended to transact almost exclusively through reserve auctions and have lower overall take rates. These publishers have continued to increase their focus and investment in programmatic CTV, and in recent periods have grown as a percentage of our CTV business. Accordingly, the increase in share among these publishers on our platform has driven a decrease in our aggregate CTV take rates. The acquisition also resulted in an increase in related operating expenses, primarily associated with costs for personnel, data center and hosting costs, facilities, payments to sellers for revenue reported on a gross basis, and other ancillary costs to support the business. We have been able to offset some of these increases through cost saving activities and the achievement of acquisition synergies. As part of our integration efforts, we introduced our unified CTV platform, Magnite Steaming, which merges leading technology from the legacy Magnite CTV and SpotX CTV platforms. We completed the migration to our unified platform early in the third quarter of 2023.

The SpringServe Acquisition expanded our video and CTV offering to include ad server functionality in addition to our programmatic SSP capabilities. The SpringServe ad server manages multiple aspects of video advertising for both programmatic transactions and inventory sold directly by the publisher, including forecasting, routing, customized ad experiences and ad formats, and advanced podding logic. This is of particular importance for CTV publishers. The combination of our SSP and ad server provides publishers a holistic yield management solution that works across their entire video advertising business to drive value. We believe the acquisition of SpringServe is highly strategic as it allows us to offer publishers an independent full-stack solution to the walled gardens, which can be leveraged across their entire video advertising business.

Macroeconomic Developments

Our business has been negatively impacted as a result of macroeconomic challenges, such as the global COVID-19 pandemic, inflation, global conflict, capital market disruptions and instability of financial institutions, the risk of a recession, labor strikes, and other macroeconomic factors, which have generally negatively impacted ad budgets, and in turn have led to slower ad spend growth through our platform. Any worsening of macroeconomic conditions in future periods would likely have a negative effect on our financial results, the magnitude of which is difficult to predict. In addition, continued inflation could result in an increase in our cost base relative to our revenue.

Refer to Item 1A. "Risk Factors" for additional information related to risks associated with macroeconomic challenges.

43

Table of Contents

Components of Our Results of Operations

We report our financial results as one operating segment. Our consolidated operating results are regularly reviewed by our chief operating decision maker, principally to make decisions about how we allocate our resources and to measure our consolidated operating performance.

Revenue

We generate revenue from the use of our platform for the purchase and sale of digital advertising inventory. Generally, our revenue is based on a percentage of the ad spend that runs through our platform, although for certain clients, services, or transaction types we may receive a fixed CPM for each impression sold, and for advertising campaigns that are transacted through insertion orders, we earn revenue based on the full amount of ad spend that runs through our platform. In addition, we may receive certain fixed monthly fees for the use of our platform or products. We recognize revenue upon the fulfillment of our contractual obligations in connection with a completed transaction, subject to satisfying all other revenue recognition criteria. For the majority of transactions executed through our platform, we act as an agent on behalf of the publisher that is monetizing its inventory, and revenue is recognized net of any advertising inventory costs that we remit to sellers. With respect to certain revenue streams for managed advertising campaigns that are transacted through insertion orders, we report revenue on a gross basis, based primarily on our determination that the Company acts as the primary obligor in the delivery of advertising campaigns for our buyer clients with respect to such transactions.

For the years ended December 31, 2023, 2022, and 2021, our revenue reported on a gross basis was 18%, 18%, and 17% of total revenue for the respective periods. Any mix shift that causes an increase in the relative percentage of our revenue accounted for on a gross basis would result in a higher revenue contribution and an associated decrease in our gross margin percentage (with no underlying impact on gross profit or Contribution ex-TAC, as defined in section "Key Operating and Financial Performance Metrics"). Our revenue recognition policies are discussed in more detail in Note 4 of the "Notes to the Consolidated Financial Statements."

We track the performance and revenue of our platform by channel. Our channels include CTV, mobile, and desktop. Consistent with the IAB’s definition of CTV, CTV represents advertising transactions on our platform that are delivered to the end consumer via a television set that is connected to the Internet. Our CTV transactions do not include advertisements viewed on a mobile or desktop device. Mobile and desktop represent advertising transactions on our platform that are delivered to the end consumer via their respective devices’ operating system, that is, a mobile operating system or a traditional desktop operating system, respectively. Mobile devices generally refer to a handset, tablet, or other communication device that runs on a mobile operating system used to access the Internet wirelessly, usually through a mobile carrier or Wi-Fi network. Desktop transactions are those transactions delivered to the end user whose device runs on a traditional PC, laptops, as well as those delivered on mobile devices or tablets that are not running on mobile based operating systems.

Expenses

We classify our expenses into the following categories:

Cost of Revenue. Our cost of revenue consists primarily of cloud hosting, data center, and bandwidth costs, ad protection costs, depreciation and maintenance expense of hardware supporting our revenue-producing platform, amortization of software costs for the development of our revenue-producing platform, amortization expense associated with acquired developed technologies, and personnel costs. In addition, for revenue booked on a gross basis, cost of revenue includes traffic acquisition costs. Personnel costs included in cost of revenue include salaries, bonuses, and stock-based compensation, and are primarily attributable to personnel in our network operations group who support our platform. We capitalize costs associated with software that is developed or obtained for internal use and amortize the costs associated with our revenue-producing platform in cost of revenue over their estimated useful lives. We amortize acquired developed technologies over their estimated useful lives.

Sales and Marketing. Our sales and marketing expenses consist primarily of personnel costs, including salaries, bonuses, and stock-based compensation, as well as marketing expenses such as brand marketing, travel expenses, trade shows and marketing materials, amortization expense associated with client relationships, backlog, and non-compete agreements from our business acquisitions, professional services, facilities-related costs, and depreciation expense. Our sales and support organization focuses on increasing the adoption of our solution by existing and new buyers and sellers and supports ongoing client relationships. We amortize acquired intangibles associated with client relationships and backlog from our business acquisitions over their estimated useful lives.

Technology and Development. Our technology and development expenses consist primarily of personnel costs, including salaries, bonuses, and stock-based compensation, as well as professional services associated with the ongoing development and maintenance of our solution, third-party software license costs, facilities-related costs, and depreciation and amortization expense. These expenses include costs incurred in the development, implementation, and maintenance of internal use software, including platform and related infrastructure. Technology and development costs are expensed as incurred, except to the extent that such costs are associated with internal use software development that qualifies for capitalization, which are then recorded as internal use software development costs, net on our consolidated balance sheets. We amortize internal use software development costs that relate

44

Table of Contents

to our revenue-producing activities on our platform to cost of revenue and amortize other internal use software development costs to technology and development costs or general and administrative expenses, depending on the nature of the related project. We amortize acquired intangibles associated with technology and development functions from our business acquisitions over their estimated useful lives.

General and Administrative. Our general and administrative expenses consist primarily of personnel costs, including salaries, bonuses, and stock-based compensation, associated with our executive, finance, legal, human resources, compliance, and other administrative personnel, as well as accounting and legal professional services fees, facilities-related costs, depreciation expense, bad debt expense, and other corporate-related expenses.

Merger, Acquisition, and Restructuring Costs. Our merger, acquisition, and restructuring costs consist primarily of professional service fees associated with merger and acquisition activities, cash-based employee termination costs, related stock-based compensation charges, and other restructuring activities, including facility closures, relocation costs, contract termination costs, and impairment costs of abandoned technology associated with restructuring activities.

Other (Income) Expense

Interest (Income) Expense, Net. Interest expense consists of interest expense associated with our Prior Term Loan B Facility (defined below) and Convertible Senior Notes (defined below), and their related amortization of debt issuance costs and debt discount. Interest income consists of interest earned on our cash equivalents.

Foreign Currency Exchange (Gain) Loss, Net. Foreign currency exchange (gain) loss, net consists primarily of gains and losses on foreign currency transactions and remeasurement of monetary assets and liabilities on our balance sheet denominated in foreign currencies. Foreign currency monetary assets and liabilities consist primarily of cash and cash equivalents, accounts receivable, accounts payable, and various intercompany balances held between our subsidiaries. Our primary foreign currency exposures are currencies other than the U.S. Dollar, principally the Australian Dollar, British Pound, Canadian Dollar, Euro, Japanese Yen, and New Zealand Dollar.

Gain on Extinguishment of Debt. Gain on extinguishment of debt consists of gains or losses associated with the repurchases of Convertible Senior Notes at a discount or premium, respectively, including unamortized issuance costs, accrued interest expense, and commissions associated with the extinguished debt.

Other Income. Other income consists primarily of rental income from commercial office space we hold under lease and have sublet to other tenants.

Provision (Benefit) for Income Taxes

We are subject to income taxes in the U.S. (federal and state) and numerous foreign jurisdictions. Tax laws, regulations, administrative practices, principles, and interpretations in various jurisdictions may be subject to significant change, with or without notice, due to economic, political, and other conditions, and significant judgment is required in evaluating and estimating our provision and accruals for these taxes. There are many transactions that occur during the ordinary course of business for which the ultimate tax determination is uncertain. Our effective tax rates could be affected by numerous factors, such as changes in our business operations, acquisitions, investments, entry into new businesses and geographies, intercompany transactions, the relative amount of our foreign earnings, including earnings being lower than anticipated in jurisdictions where we have lower statutory rates and higher than anticipated in jurisdictions where we have higher statutory rates, losses incurred in jurisdictions for which we are not able to realize related income tax benefits, the applicability of special tax regimes, changes in foreign currency exchange rates, changes in our stock price, changes in our deferred tax assets ("DTAs") and liabilities and their valuation, changes in the laws, regulations, administrative practices, principles, and interpretations related to tax, including changes to the global tax framework, competition, and other laws and accounting rules in various jurisdictions.

45

Table of Contents

Results of Operations

The following table sets forth our consolidated results of operations:

Year Ended Change %

(in thousands)

Expenses (1)(2):

NM means Not Meaningful

(1) Stock-based compensation expense included in our expenses was as follows:

Year Ended

(in thousands)

Merger, acquisition, and restructuring costs 143 2,004 1,071

Year Ended

(in thousands)

46

Table of Contents

The following table sets forth our consolidated results of operations for the specified periods as a percentage of our revenue for those periods presented:

Year Ended

Technology and development 15 16 16

General and administrative 14 14 14

Merger, acquisition, and restructuring costs 1 1 8

Loss from operations (25) (20) (17)

Other expense, net — 4 3

Loss before income taxes (25) (23) (20)

Provision (benefit) for income taxes — (1) (20)

Net income (loss) (26) % (23) % — %

Note: Percentages may not sum due to rounding

Comparison of the Years Ended December 31, 2023, 2022, and 2021

Revenue

Revenue increased $42.6 million, or 7%, for the year ended December 31, 2023 compared to the prior year. Our revenue growth was driven primarily by growth in mobile and CTV, which was partially offset by a decrease in desktop. Revenue from mobile and CTV increased by $39.7 million, or 21%, and $13.6 million, or 5%, respectively, while desktop decreased by $10.6 million, or 9%. During 2023, our growth rate in CTV was negatively impacted, in part, by a mix shift towards large CTV sellers that transacted primarily through reserve auctions, which carry a lower overall take rate compared to other transaction types.

Revenue increased $108.7 million, or 23%, for the year ended December 31, 2022 compared to the prior year. Our revenue growth was driven primarily by growth in CTV and mobile as well as incremental revenue from full-year results from the SpotX Acquisition, which was completed on April 30, 2021, and the SpringServe Acquisition, which was completed on July 1, 2021. Revenue from CTV and mobile increased by $83.3 million, or 45%, and $27.8 million, or 17%, respectively. On a pro forma basis, including results from SpotX and SpringServe during the relevant pre-acquisition period, revenue increased 7% for the year ended December 31, 2022 compared to the prior period.

Our revenue is largely a function of the number of advertising transactions and the price, or CPM, at which the inventory is sold, which results in total advertising spend on our platform, and, with respect to our revenue reported on a net basis, the take rate we charge for our services. Because pricing and take rate vary across publisher, channel, and transaction type, our revenue is subject to changes in publisher-specific take rates, and shifts in the mix of advertising spend on our platform among publishers and transaction types. For instance, managed services tend to have higher take rates while reserve auctions tend to have lower take rates. For 2024, we believe our revenue will increase compared to the prior year period, and although revenue from mobile was the primary driver in revenue growth in 2023, we expect CTV will be our biggest growth driver in 2024.

Our business is dependent in part on the overall health of the advertising market. Our revenue growth has been tempered, and may be negatively impacted in the future, by reductions in revenue resulting from the impact of macroeconomic challenges. If economic conditions were to deteriorate further, we would likely experience a negative impact on our future revenue trends, and the magnitude of these impacts is difficult to predict depending on their scope and duration. Refer to Item 1A. "Risk Factors" for additional information related to these risks and the impact they may have on our business.

Cost of Revenue

Cost of revenue increased $102.7 million, or 33%, for the year ended December 31, 2023 compared to the prior year primarily due to an increase of $69.3 million in depreciation and amortization. This increase was primarily driven by incremental amortization due to the acceleration of the remaining lives of certain acquired intangible assets and capitalized software from the integration of our legacy Magnite CTV and SpotX CTV platforms, which started in the fourth quarter of 2022 and was completed in the third quarter of 2023. The year over year increase in amortization due to the acceleration was $64.0 million. Costs of revenue also included increases of $26.2 million in cloud hosting, data center, and bandwidth expenses and $8.1 million in traffic acquisition costs, both primarily due to revenue growth.

47

Table of Contents

Cost of revenue increased $105.5 million, or 52%, for the year ended December 31, 2022 compared to the prior year primarily due to an increase of $64.5 million in depreciation and amortization. This increase was driven by incremental amortization due to the acceleration of the remaining lives of certain acquired intangible assets and capitalized software from the integration of our legacy Magnite CTV and SpotX CTV platforms, as well as from a full year of amortization expense from the SpotX Acquisition. The incremental amortization due to the acceleration was $35.4 million. Costs of revenue also included increases of $26.9 million in cloud hosting, data center, and bandwidth expenses and $10.5 million in traffic acquisition costs, both primarily due to revenue growth.

We expect cost of revenue to decrease in 2024 compared to 2023 in absolute dollars primarily due to the completion of the accelerated amortization expense as discussed above.

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.

Sales and Marketing

Sales and marketing expenses decreased $26.1 million, or 13%, for the year ended December 31, 2023 compared to the prior year primarily due to a decrease of $44.3 million in depreciation and amortization related to certain acquired intangible assets becoming fully amortized in 2022 and 2023. This decrease was partially offset by an increase of $15.3 million of personnel related expenses.

Sales and marketing expenses increased $29.7 million, or 17%, for the year ended December 31, 2022 compared to the prior year primarily due to the impact of the SpotX Acquisition, which resulted in substantial increases in headcount in mid-2021, as well as expenses related to the amortization of acquired intangibles. Compared to the prior year, sales and marketing included an increase of $17.5 million of personnel related expenses and $4.2 million in amortization of acquired intangibles relating to the SpotX Acquisition. In addition, the increase in sales and marketing expenses included $3.3 million related to travel and industry events due to the lifting of travel restrictions during the year.

We expect sales and marketing expenses to decrease in 2024 compared to 2023 in absolute dollars primarily due to decreases in amortization of acquired intangible assets. We expect these decreases to be partially offset by increases in personnel related expenses and increases in travel and entertainment expenses.

Sales and marketing expenses may fluctuate quarter to quarter and period to period, on an absolute dollar basis and as a percentage of revenue, based on revenue levels, the timing of our investments and seasonality in our industry and business.

Technology and Development

Technology and development expenses increased $0.6 million, or 1%, for the year ended December 31, 2023 compared to the prior year.

Technology and development expenses increased $19.3 million, or 26%, for the year ended December 31, 2022 compared to the prior year, primarily due to an increase of $15.8 million in personnel costs as a result of the increased headcount associated with the SpotX Acquisition.

We expect technology and development expenses to increase in 2024 compared to 2023 in absolute dollars due to increases in personnel related expenses.

The timing and amount of our capitalized development and enhancement projects may affect the amount of development costs expensed in any given period. As a percentage of revenue, technology and development expense may fluctuate from quarter to quarter and period to period based on revenue levels, the timing and amounts of technology and development efforts, the timing and the rate of the amortization of capitalized projects and the timing and amounts of future capitalized internal use software development costs.

General and Administrative

General and administrative expenses increased $7.7 million, or 9%, for the year ended December 31, 2023 compared to the prior year, primarily due to increases of $4.8 million in bad debt expense. Bad debt expense was primarily a result of a buyer defaulting on payment obligations and subsequently filing for bankruptcy during the second quarter of 2023, resulting in bad debt expense of $4.2 million. General and administrative expenses also included an increase of $4.2 million in personnel expenses.

General and administrative expenses increased by $16.6 million, or 26%, for the year ended December 31, 2022 compared to the prior year, primarily due to increases of $10.2 million in personnel expenses mainly due to increases in stock-based compensation year-over-year, $2.0 million in facilities related expenses due to a return to office work environment, $1.8 million in business insurance and taxes, and $1.1 million related to travel and industry events due to the lifting of travel restrictions during the year.

48

Table of Contents

We expect general and administrative expenses to increase in 2024 compared to 2023 in absolute dollars primarily due to increases in personnel and travel-related expenses.

General and administrative expenses may fluctuate from quarter to quarter and period to period based on the timing and amounts of expenditures in our general and administrative functions as they vary in scope and scale over periods. Such fluctuations may not be directly proportional to changes in revenue.

Merger, Acquisition, and Restructuring Costs

We incurred merger, acquisition, and restructuring costs of $7.5 million, $7.5 million, and $38.2 million during the years ended December 31, 2023, 2022, and 2021, respectively, primarily related to the SpotX and SpringServe Acquisitions, which were completed on April 30, 2021 and July 1, 2021, respectively. Merger, acquisition, and restructuring costs incurred during 2023 included $3.4 million of severance related expenses, $2.2 million of facilities related loss contracts, and $1.4 million of exit costs, all due to restructuring activities as a result of consolidating our legacy CTV and SpotX CTV platforms following the SpotX Acquisition.

In 2022, these costs were primarily due to restructuring activities related to the integration of our recent acquisitions, which included $3.3 million of impairment costs associated with abandoned technology, $2.0 million non-cash stock-based compensation expense associated with the acceleration of unvested equity awards, and $1.2 million of one-time cash-based employee termination costs.

Costs incurred in 2021 included professional fees related to investment banking advisory, legal, and other professional service fees of $28.4 million, one-time cash-based employee termination benefit costs of $6.2 million, facility closure costs of $2.5 million, and non-cash stock-based compensation expense associated with double-trigger accelerations and severance benefits of $1.1 million.

Other (Income) Expense, Net

Year Ended

(in thousands)

Gain on debt extinguishment (26,480) — —

Interest expense, net increased by $3.1 million during the year ended December 31, 2023 compared to the prior year, mainly due to increased interest expense of $11.3 million as a result of increased interest rates on our Prior Term Loan B Facility (defined below), partially offset by an increase in interest income of $8.2 million.

Interest expense, net increased by $9.4 million during the year ended December 31, 2022 compared to the prior year, mainly due to a full year of interest expense associated with the Prior Term Loan B Facility, which the Company entered into during April 2021, as well as increasing interest rates since our Prior Term Loan B Facility carries a variable rate. The increase in interest expense was partially offset by increases in interest income of $2.9 million.

Foreign exchange loss, net increased $3.1 million during the year ended December 31, 2023 compared to the prior year, due to movements in foreign currency exchange rates and the amount of foreign currency-denominated cash, receivables, and payables, which were impacted by our billings to buyers, payments to sellers, and intercompany balances. Foreign exchange gain, net decreased $0.4 million during the year ended December 31, 2022 compared to the prior year, for the same reasons above.

Gain on debt extinguishment increased by $26.5 million during the year ended December 31, 2023 compared to the prior year due to our Convertible Senior Notes (defined below) repurchases.

Provision (Benefit) for Income Taxes

We recorded an income tax expense of $1.6 million for the year ended December 31, 2023 compared to an income tax benefit of $5.3 million and $95.1 million for the years ended December 31, 2022 and 2021, respectively. The income tax expense for the year ended December 31, 2023 was primarily the result of the domestic valuation allowance and the federal, state, and foreign income tax liabilities. We continue to maintain a valuation allowance for our domestic deferred tax assets.

The income tax benefit for the year ended December 31, 2022 was primarily the result of recognizing the benefit of deferred tax assets previously subject to the domestic valuation allowance and the foreign income tax liability. The net deferred tax liabilities recorded in connection with the prior year’s acquisitions and current taxable income for the year provided sources of taxable income to support the realization of pre-existing deferred tax assets. The income tax benefit for the year ended December 31,

49

Table of Contents

2021 was primarily the result of realizing the benefit of deferred tax assets previously subject to the domestic valuation allowance as a result of the deferred tax liabilities associated with acquisitions that occurred during the year and the tax liability associated with foreign subsidiaries.

Key Operating and Financial Performance Metrics

In addition to our GAAP results, we review non-GAAP financial measures, including Contribution ex-TAC and Adjusted EBITDA, to help us evaluate our business on a consistent basis, measure our performance, identify trends affecting our business, establish budgets, measure the effectiveness of investments in our technology and development and sales and marketing, and assess our operational efficiencies. Our non-GAAP financial measures are discussed below. Revenue and net income (loss) are discussed above under the headings "Components of Our Results of Operations" and "Results of Operations."

Year Ended

(in thousands)

Financial Measures and non-GAAP Financial Measures:

Contribution ex-TAC

Contribution ex-TAC is calculated as gross profit plus cost of revenue excluding traffic acquisition cost ("TAC"). Traffic acquisition cost, a component of cost of revenue, represents what we must pay sellers for the sale of advertising inventory through our platform for revenue reported on a gross basis. Contribution ex-TAC is a non-GAAP financial measure that is most comparable to gross profit. Our management believes Contribution ex-TAC is a useful measure in assessing the performance of Magnite and facilitates a consistent comparison against our core business without considering the impact of traffic acquisition costs related to revenue reported on a gross basis.

Our use of Contribution ex-TAC has limitations as an analytical tool and you should not consider it in isolation or as a substitute for analysis of our financial results as reported under GAAP. A potential limitation of this non-GAAP financial measure is that other companies, including companies in our industry which have similar business arrangements, may define Contribution ex-TAC differently, which may make comparisons difficult. Because of these and other limitations, you should consider our non-GAAP measures only as supplemental to GAAP-based financial performance measures, including revenue, gross profit, net income (loss) and cash flows.

The following table presents the calculation of gross profit and reconciliation of gross profit to Contribution ex-TAC for the years ended December 31, 2023, 2022, and 2021, respectively:

Year Ended

(in thousands)

50

Table of Contents

Sellers use our technology to monetize their content across all digital channels, including CTV, mobile and desktop. Each of these digital channels has its own industry growth rate, with CTV and mobile projected to continue to grow steadily, while desktop growth flattens. MAGNA's October 2023 Programmatic Market forecast has estimated compound annual growth rates from 2023 to 2027 for mobile and desktop at 15% and 3%, respectively, and over the same period, eMarketer projected CTV to grow at a 15% compound annual growth rate.

We track the breakdown of Contribution ex-TAC across channels to better understand how our clients are transacting on our platform, which informs decisions as to business strategy and the allocation of resources and capital. The following table presents Contribution ex-TAC by channel:

Contribution ex-TAC

Year Ended

(in thousands)

Channel:

Contribution ex-TAC increased $34.5 million, or 7%, for the year ended December 31, 2023 compared to the year ended December 31, 2022. The increase in Contribution ex-TAC was primarily due to the growth drivers described above for revenue.

Contribution ex-TAC increased $98.2 million, or 24%, for the year ended December 31, 2022 compared to the year ended December 31, 2021. The increase in Contribution ex-TAC was primarily due to incremental revenue from the SpotX Acquisition, which was completed on April 30, 2021, and the SpringServe Acquisition, which was completed on July 1, 2021, as well as organic growth across CTV and mobile. We saw substantial growth in our CTV channel, which benefited from a full year of results from the SpotX and Spring Serve Acquisitions, as well as modest growth in mobile, which was partially offset by a decline in our Contribution ex-TAC from desktop.

For 2024, we expect Contribution ex-TAC will increase compared to the prior year period, and although Contribution ex-TAC from mobile was the primary driver in Contribution ex-TAC growth in 2023, we expect CTV will be our biggest growth driver in 2024.

Adjusted EBITDA

We define Adjusted EBITDA as net income (loss) adjusted to exclude stock-based compensation expense, depreciation and amortization, amortization of acquired intangible assets, impairment charges, interest income or expense, and other cash and non-cash based income or expenses that we do not consider indicative of our core operating performance, including, but not limited to foreign exchange gains and losses, acquisition and related items, gains or losses on extinguishment of debt, non-operational real estate and other expense (income), net, and provision (benefit) for income taxes. We believe Adjusted EBITDA is useful to investors in evaluating our performance for the following reasons:

•Adjusted EBITDA is widely used by investors and securities analysts to measure a company’s performance without regard to items such as those we exclude in calculating this measure, which can vary substantially from company to company depending upon their financing, capital structures, and the method by which assets were acquired.

•Our management uses Adjusted EBITDA in conjunction with GAAP financial measures for planning purposes, including the preparation of our annual operating budget, as a measure of performance and the effectiveness of our business strategies, and in communications with our board of directors concerning our performance. Adjusted EBITDA is also used as a metric for determining payment of cash incentive compensation.

•Adjusted EBITDA provides a measure of consistency and comparability with our past performance that many investors find useful, facilitates period-to-period comparisons of operations, and also facilitates comparisons with other peer companies, many of which use similar non-GAAP financial measures to supplement their GAAP results.

Although Adjusted EBITDA is frequently used by investors and securities analysts in their evaluations of companies, Adjusted EBITDA 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. These limitations include:

•Stock-based compensation is a non-cash charge and will remain an element of our long-term incentive compensation package, although we exclude it as an expense when evaluating our ongoing operating performance for a particular period.

•Depreciation and amortization are non-cash charges, and the assets being depreciated or amortized will often have to be replaced in the future, but Adjusted EBITDA does not reflect any cash requirements for these replacements.

51

Table of Contents

•Impairment charges are non-cash charges related to goodwill, intangible assets and/or long-lived assets.

•Adjusted EBITDA does not reflect certain cash and non-cash charges related to acquisition and related items, such as amortization of acquired intangible assets, merger, acquisition, or restructuring related severance costs, and changes in the fair value of contingent consideration.

•Adjusted EBITDA does not reflect cash and non-cash charges and changes in, or cash requirements for, acquisition and related items, such as certain transaction expenses and expenses associated with earn-out amounts.

•Adjusted EBITDA does not reflect changes in our working capital needs, capital expenditures, non-operational real estate expenses or income, or contractual commitments.

•Adjusted EBITDA does not reflect cash requirements for income taxes and the cash impact of other income or expense.

•Other companies may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

Our Adjusted EBITDA is influenced by fluctuations in our revenue, cost of revenue, and the timing and amounts of the cost of our operations. Adjusted EBITDA should not be considered as an alternative to net income (loss), income (loss) from operations, or any other measure of financial performance calculated and presented in accordance with GAAP.

The following table presents a reconciliation of net income (loss), the most comparable GAAP measure, to Adjusted EBITDA for the years ended December 31, 2023, 2022, and 2021:

Year Ended

(in thousands)

Add back (deduct):

Non-operational real estate and other expense, net 310 622 552

Gain on extinguishment of debt (26,480) — —

Adjusted EBITDA decreased by $7.4 million during the year ended December 31, 2023 compared to the year ended December 31, 2022, primarily due to increases in cloud hosting, data center, and bandwidth costs, traffic and acquisitions costs, personnel expenses, and bad debt expense, which exceeded increases in revenue year-over-year, which are discussed in section "Comparison of the Years Ended December 31, 2023, 2022, and 2021."

Adjusted EBITDA increased by $30.1 million during the year ended December 31, 2022 compared to the year ended December 31, 2021, primarily due to incremental revenue growth from the SpotX Acquisition and organic growth, which are discussed in section "Comparison of the Years Ended December 31, 2023, 2022, and 2021."

Liquidity and Capital Resources

Liquidity

At December 31, 2023, we had cash and cash equivalents of $326.2 million, of which $52.6 million was held in foreign currency denominated cash accounts, and an aggregate gross principal amount of $556.1 million of indebtedness outstanding under our Prior Term Loan B Facility (as defined below) and our Convertible Senior Notes (as defined below). In addition, we were party to a $65.0 million Prior Revolving Credit Facility (as defined below), of which approximately $5.3 million was assigned to outstanding but undrawn letters of credit. The Prior Term Loan B Facility and Prior Revolving Credit Facility were fully terminated and replaced with the New Term Loan B Facility and New Revolving Credit Facility (both defined below). See "Capital Resources" below for further information about our outstanding debt.

Our principal cash requirements for the twelve-month period following this report primarily consist of personnel costs, contractual payment obligations, including office leases, data center costs and cloud hosting costs, capital expenditures, payment of

52

Table of Contents

interest and required principal payments on our Convertible Senior Notes, New Term Loan B Facility, cash outlays for income taxes, and cash requirements to fund working capital. In the longer term, we would expect to have similar cash requirements, with increases in absolute dollars associated with the continued growth of our business and expansion of operations. See "Contractual Obligations and Known Future Cash Requirements" for a further discussion of our known material contractual obligations.

Our working capital needs and cash conversion cycle, which is influenced by seasonality and by the mix of terms among our buyers and sellers and which may be negatively impacted as a result of pandemics, inflationary, recessionary and other macroeconomic challenges, can have large fluctuations due to the timing of receipts from buyers and timing of disbursements to sellers. In addition, in the event a buyer defaults on payment, we may still be required to pay sellers for the inventory purchased. The impacts from changes in working capital and capital expenditures can significantly impact our cash flows and therefore, our liquidity during any period presented.

We have historically relied upon cash and cash equivalents, cash generated from operations, borrowings under credit facilities and issuance of debt for our liquidity needs. Our ability to meet our cash requirements depends on, among other things, our operating performance, competitive developments, and financial market conditions, all of which are significantly affected by business, financial, economic, political, global health-related and other factors, many of which we may not be able to control or influence.

We believe our existing cash and cash equivalents, cash generated from operating activities, and amounts available to borrow under our New Revolving Credit Facility will be sufficient to meet our working capital requirements for at least the next twelve months from the issuance of our financial statements. However, there are multiple factors that could impact our cash balances in the future, including the factors described above with respect to working capital and cash conversion cycles, as well as the duration and severity of events beyond our control, macroeconomic factors and other factors set forth in Part I, Item 1A: "Risk Factors" of this Annual Report on Form 10-K.

Capital Resources

In March 2021, we sold convertible senior notes ("Convertible Senior Notes") for gross proceeds of $400.0 million. The Convertible Senior Notes are senior, unsecured obligations with interest payable semi-annually in cash at a rate of 0.25% per annum in arrears on March 15 and September 15. The Convertible Senior Notes will mature on March 15, 2026, unless earlier converted, redeemed, or repurchased. The initial conversion rate is 15.6539 shares per $1,000 principal amount of notes, which represents an initial conversion price of approximately $63.88 per share of the Company’s common stock and is subject to adjustment as described in the Offering Memorandum. At December 31, 2023, the balance of the Convertible Senior Notes was $202.5 million, net of unamortized debt issuance costs of $2.6 million. Accrued interest for the Convertible Senior Notes at December 31, 2023 was $0.1 million.

In conjunction with the issuance of the Convertible Senior Notes, we entered into capped call transactions to reduce the Company's exposure to additional cash payments above principal balances in the event of a cash conversion of the Convertible Senior Notes. The Company may owe additional cash or shares to the holders of the Convertible Senior Notes upon early conversion if our stock price exceeds $91.260 per share, which is subject to certain adjustments.

On April 30, 2021, and in conjunction with the SpotX Acquisition, we entered into a credit agreement (the "Prior Credit Agreement") with Goldman Sachs Bank USA as administrative and collateral agent, and other lending parties thereto for a $360.0 million seven-year senior secured term loan facility ("Prior Term Loan B Facility") and a $52.5 million senior secured revolving credit facility (the "Prior Revolving Credit Facility"), which was subsequently increased to $65.0 million in June 2021. The Prior Credit Agreement was fully refinanced and replaced by the New Credit Agreement (defined below). Amounts outstanding under the Prior Credit Agreement accrued interest at a rate equal to either, (1) for the Prior Term Loan B Facility, at the Company’s election, the Eurodollar Rate (as defined in the Prior Credit Agreement) plus a margin of 5.00% per annum, or ABR (as defined in the Prior Credit Agreement) plus a margin of 4.00%, and (2) for the Prior Revolving Credit Facility, at the Company’s election, the Eurodollar Rate plus a margin of 4.25% to 4.75%, or ABR plus a margin of 3.25% to 3.75%, in each case, depending on the Company’s first lien net leverage ratio. As part of the Prior Term Loan B Facility, the Company received $325 million in proceeds, net of discounts and fees, which were used to finance the SpotX Acquisition and related transactions and for general corporate purposes. In June 2023, the Company amended its Prior Credit Agreement to transition away from a variable interest rate based on the Eurodollar Rate towards a similar variable interest rate based on Adjusted Term SOFR, as defined in the amendment to the Credit Agreement, which is based on the Secured Overnight Financing Rate ("SOFR"). At December 31, 2023, amounts available under the Prior Revolving Credit Facility were $59.7 million, net of letters of credit outstanding in the amount of $5.3 million. Accrued interest for the Prior Term Loan B Facility at December 31, 2023 was $1.0 million.

On February 6, 2024, we entered into a credit agreement (the “New Credit Agreement”) with Morgan Stanley Senior Funding, Inc. as term loan administrative agent and Citibank, N.A. as revolving facility administrative agent and collateral agent, and other lender parties thereto. The New Credit Agreement provides for a $365.0 million seven-year senior secured term loan facility (the "New Term Loan B Facility") and a $175.0 million five-year senior secured revolving credit facility (the "New Revolving Credit Facility"). The net proceeds from the New Term Loan B Facility were used, among other things, to terminate and to repay in full the outstanding facilities under the Prior Credit Agreement. The New Revolving Credit Facility will be available for

53

Table of Contents

general corporate purposes. The obligations under the New Credit Agreement are secured by substantially all of the assets of the Company pursuant to a collateral agreement entered into with the collateral agent. Amounts outstanding under the New Credit Agreement accrue interest at a rate equal to, (1) for the term loans, at the Company’s election, Term SOFR (as defined in the New Credit Agreement) plus a margin of 4.50% per annum, or ABR (as defined in the New Credit Agreement) plus a margin of 3.50%, and (2) for the revolving loans, at the Company’s election, Term SOFR plus a margin of 3.50% to 4.00%, or ABR plus a margin of 2.50% to 3.00%, in each case, depending on the Company’s first lien net leverage ratio. The covenants of the New Credit Agreement include customary negative covenants that, among other things, restrict the Company’s ability to incur additional indebtedness, grant liens and make certain acquisitions, investments, asset dispositions and restricted payments. In addition, the New Credit Agreement contains a financial covenant, tested on the last day of any fiscal quarter if utilization of the revolving credit facility exceeds 35% of the total revolving commitments, that requires the Company to maintain a first lien net leverage ratio not greater than 3.25 to 1.00. The New Credit Agreement includes customary events of default, and customary rights and remedies upon the occurrence of any event of default thereunder, including rights to accelerate the loans, terminate the commitments thereunder and realize upon the collateral securing the obligations under the New Credit Agreement.

In December 2021, the Board of Directors approved a repurchase program (the "2021 Repurchase Plan"), under which we were authorized to purchase up to $50.0 million of our common stock over the twelve month period commencing December 10, 2021. In November 2022, the Board of Directors approved an extension of the 2021 Repurchase Plan through December 15, 2023. In February 2023, the Board of Directors approved a repurchase plan (the “February 2023 Repurchase Plan”), pursuant to which we were authorized to repurchase common stock or Convertible Senior Notes, with an aggregate market value of up to $75.0 million, through February 16, 2025, which was completed during the second quarter of 2023. On August 4, 2023, the Board of Directors approved a new repurchase plan (the "August 2023 Repurchase Plan"), pursuant to which we were authorized to repurchase common stock or Convertible Senior Notes, with an aggregate market value of up to $100.0 million, through August 4, 2025. As of December 31, 2023, $9.5 million remained available under the August 2023 Repurchase Plan. As a result of repurchases under the February 2023 Repurchase Plan and August 2023 Repurchase Plan, as of December 31, 2023, the Company had reduced the principal balance of its Convertible Senior Notes to $205.1 million.

Subsequently, on February 1, 2024, the Board of Directors approved a new repurchase plan (the "February 2024 Repurchase Plan"), which fully replaced the August 2023 Repurchase Plan, pursuant to which we are authorized to repurchase common stock or Convertible Senior Notes, with an aggregate market value of up to $125.0 million, through February 1, 2026.

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 may be diluted. If we raise additional financing by incurring indebtedness, we will be subject to increased fixed payment obligations and could also be subject to financial maintenance covenants, or 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. An inability to raise additional capital could adversely affect our ability to achieve our business objectives.

Our cash and cash equivalents balance is affected by our results of operations, the timing of capital expenditures, and by changes in our working capital, particularly changes in accounts receivable and accounts payable. The timing of cash receipts from buyers and payments to sellers can significantly impact our cash flows from operating activities and our liquidity for, and within, any period presented. Our collection and payment cycle can vary from period to period depending upon various circumstances, including seasonality, and may be negatively impacted by certain macroeconomic challenges, such as capital market disruptions and instability of financial institutions.

Cash Flows

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

Year Ended

(in thousands)

Change in cash, cash equivalents and restricted cash $ (283) $ 95,809 $ 112,962

Operating Activities

Our cash flows from operating activities are primarily driven by revenue from transactions of advertising on our platform, offset by the cash costs of operations, and are significantly influenced by the timing of and fluctuations in receipts from buyers and

54

Table of Contents

related payments to sellers. Our future cash flows will be diminished if we cannot increase our revenue levels and manage costs appropriately.

During the year ended December 31, 2023, net cash provided by operating activities was $214.4 million, compared to net cash provided by operating activities of $192.6 million and $126.6 million during the years ended December 31, 2022 and 2021, respectively. Our operating activities included net loss of $159.2 million, net loss of $130.3 million, and net income of $0.1 million for the years ended December 31, 2023 and 2022, and 2021, respectively, which were offset by non-cash adjustments of $298.1 million, $282.4 million, and $94.6 million, respectively. Net changes in our working capital resulted in increases of $75.5 million, $40.4 million, and $31.9 million in cash provided by operating activities in 2023, 2022, and 2021 respectively. The net changes in working capital for all periods presented are primarily due to the timing of cash receipts from buyers and the timing of payments to sellers.

We believe that cash flows from operations will continue to fluctuate, but in general will increase over time as our business continues to grow.

Investing Activities

Our primary investing activities have consisted of acquisitions of businesses, purchases of property and equipment, and capital expenditures in support of creating and enhancing our technology infrastructure. Purchases of property and equipment and investments in internal use software development may vary from period-to-period due to the timing of the expansion of our operations, changes to headcount, and the cycles of our internal use software development.

During the year ended December 31, 2023, net cash used in investing activities was $37.4 million, compared to net cash used in investing activities of $65.2 million and $691.0 million during the years ended December 31, 2022 and 2021, respectively. During the year ended December 31, 2023, 2022, and 2021, we used cash for purchases of property and equipment of $26.8 million, $30.8 million, and $17.7 million, respectively, and used cash for investments in our internally developed software of $10.6 million, $13.6 million, and $11.4 million, respectively. During the year ended December 31, 2022, we used net cash of $20.8 million to acquire Carbon and during the year ended December 31, 2021, we used net cash of $661.9 million to acquire SpotX, SpringServe, and Nth Party.

We anticipate cash flows used in our investing activities will generally increase in 2024 compared to 2023 in order to support our overall growth, in particular with respect to investments in property and equipment and internally developed software.

Financing Activities

Our financing activities consisted of our Convertible Senior Notes transactions, repayment of amounts borrowed under our Prior Term Loan B Facility, transactions related to our equity plans, and stock purchases under the repurchase plans.

During the year ended December 31, 2023, net cash used in financing activities was $177.8 million, compared to net cash used in financing activities of $30.2 million for the year ended December 31, 2022 and net cash provided by financing activities of $678.1 million during the year ended December 31, 2021. Cash outflows from financing activities for the year ended December 31, 2023 primarily included $165.5 million of payments related to repurchasing our Convertible Senior Notes, $11.8 million for taxes paid related to net share settlement of stock-based awards, $3.6 million for repayment of our Prior Term Loan B Facility, and $2.3 million for payment of our indemnification claims holdback related to historical acquisitions. These outflows for the year ended December 31, 2023 were partially offset by cash proceeds from issuance of common stock under our employee stock purchase plan of $3.5 million and from stock options exercised of $2.2 million. Cash outflows from financing activities for the year ended December 31, 2022 included $15.7 million for payments related to share repurchases, $14.5 million for taxes paid related to net share settlement of stock-based awards, and $3.6 million for repayment of our Prior Term Loan B Facility. These outflows for the year ended December 31, 2022 were partially offset by cash proceeds from issuance of common stock under our employee stock purchase plan of $3.7 million and from stock options exercised of $2.2 million. Cash inflows from financing activities for the year ended December 31, 2021 included $400.0 million in proceeds from our Convertible Senior Notes offering, $349.2 million in net proceeds from our Prior Term Loan B Facility, cash proceeds from stock options exercised of $9.4 million and $3.7 million cash proceeds from issuance of common stock under our employee stock purchase plan. These inflows for the year ended December 31, 2021 were partially offset by a $39.0 million payment for capped call transactions entered into in connection with the Convertible Senior Notes offering, debt issuance cost payments of $30.4 million, repurchases of $6.0 million of treasury stock in conjunction with our stock repurchase plan, $6.5 million for income tax deposits paid in respect of vesting of stock-based compensation awards that were reimbursed by the award recipients through surrender of shares, $1.8 million repayment of Prior Term Loan B Facility, and repayment of $0.6 million financing lease obligations.

Off-Balance Sheet Arrangements

We do not have any relationships with other entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities that have been established for the purpose of facilitating off-balance sheet arrangements or other

55

Table of Contents

contractually narrow or limited purposes. We did not have any other off-balance sheet arrangements at December 31, 2023 other than the short-term operating leases described below and commitments mentioned in Note 16 - Commitments and Contingencies.

Contractual Obligations and Known Future Cash Requirements

Our principal commitments as of December 31, 2023 consist of obligations under our Convertible Senior Notes, Prior Term Loan B Facility, Prior Revolving Credit Facility, leases for our various office facilities, including our corporate headquarters in New York, New York and offices in Los Angeles, California, and operating lease agreements, including data centers and cloud hosting services that expire at various times through 2033. In certain cases, the terms of the lease agreements provide for rental payments on a graduated basis.

The following table summarizes our future lease obligations, payments of principal and interest under our debt agreements and other future payments due under non-cancelable agreements at December 31, 2023:

(in thousands)

Payments associated with our Convertible Senior Notes and Prior Term Loan B are based on contractual terms and intended timing of repayments of long-term debt and associated interest, in each case, as of December 31, 2023. As described above (see "Capital Resources"), in February 2024, we entered into a New Credit Agreement, the proceeds of which were used in part to refinance and terminate the Prior Term Loan B with the New Term Loan B Facility. The New Term Loan B Facility includes a $365.0 million senior secured term loan facility that matures in February 2031. Quarterly principal installment payments of 0.25% of the aggregate initial principal balance, or $0.9 million, will be due at the end of each fiscal quarter, with the first principal installment due June 30, 2024, and the amount equal to the then unpaid principal amount of the initial balance on February 6, 2031. Amounts outstanding under the New Term Loan B Facility will accrue interest and will be due at least quarterly.

Other non-cancelable obligations include agreements in the normal course of business and purchase consideration that extend beyond a year as of December 31, 2023. The amounts above include commitments under a cloud-managed services agreement, under which the Company has a non-cancelable minimum spend commitment from July 2023 to June 2025 based on actual spend, as defined in the agreement, with the third-party provider from July 2022 to June 2023 of $57.6 million for each twelve-month period (i.e. July 2023 to June 2024 and July 2024 to June 2025). The minimum spend commitment reflected above approximates the manner in which we expect to fulfill the obligation.

In the ordinary course of business, we enter into agreements with sellers, buyers, and other third parties pursuant to which we agree to indemnify buyers, sellers, vendors, lessors, business partners, lenders, stockholders, and other parties with respect to certain matters, including, but not limited to, losses resulting from claims of intellectual property infringement, damages to property or persons, business losses, or other liabilities. Generally, these indemnity and defense obligations relate to our own business operations, obligations, and acts or omissions. However, under some circumstances, we agree to indemnify and defend contract counterparties against losses resulting from their own business operations, obligations, and acts or omissions, or the business operations, obligations, and acts or omissions of third parties. These indemnity provisions generally survive termination or expiration of the agreements in which they appear. In addition, we have entered into indemnification agreements with our directors, executive officers and certain other officers that will require us, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors, officers, or employees. No demands for indemnification have been made as of December 31, 2023.

56

Table of Contents

Critical Accounting Policies and Estimates

Our consolidated financial statements are prepared in accordance with GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses, and related disclosures. We evaluate our estimates and assumptions on an ongoing basis. Our estimates are based on historical experience and various other assumptions that we believe to be reasonable under the circumstances. Our actual results could differ from these estimates.

We believe that the following assumptions and estimates have the greatest potential impact on our consolidated financial statements: (i) the determination of revenue recognition as net versus gross in our revenue arrangements and (ii) the determination of amounts to capitalize and the estimated useful lives of internal-use software development costs. There have been no significant changes in our accounting policies or estimates from those disclosed in our audited consolidated financial statements and notes thereto for the years ended December 31, 2023, 2022 and 2021.

We believe that the accounting policies disclosed below include estimates and assumptions critical to our business and their application could have a material impact on our consolidated financial statements. In addition to these critical policies, our significant accounting policies are included within Note 2 of our "Notes to Consolidated Financial Statements" within this Annual Report on Form 10-K.

Revenue Recognition

We generate revenue from transactions where we provide a platform for the purchase and sale of digital advertising inventory. Generally, our revenue is based on a percentage of the ad spend that runs through our platform, although for certain clients, services, or transaction types we may receive a fixed CPM for each impression sold, and for advertising campaigns that are transacted through insertion orders we earn revenue based on the full amount of ad spend that runs through our platform. In addition, we may receive certain fixed monthly fees for the use of our platform or products. Our platform dynamically connects sellers and buyers of advertising inventory in a digital marketplace. Our solution incorporates proprietary machine-learning algorithms, sophisticated data processing, high-volume storage, detailed analytics capabilities, and a distributed infrastructure. Digital advertising inventory is created when consumers access sellers’ content. Sellers provide digital advertising inventory to our platform in the form of advertising requests, or ad requests. When we receive ad requests from sellers, we send bid requests to buyers, which enable buyers to bid on sellers’ digital advertising inventory. Winning bids can create advertising, or paid impressions, for the seller to present to the consumer.

The total volume of spending between buyers and sellers on our platform is referred to as advertising spend. We keep a percentage of that advertising spend as a fee, and remit the remainder to the seller. The fee that we retain from the gross advertising spend on our platform is recognized as revenue. The fee earned on each transaction is based on the pre-existing agreement we have with the seller and the clearing price of the winning bid. We recognize revenue upon fulfillment of our performance obligation to a client, which occurs at the point in time an ad renders and is counted as a paid impression, subject to a contract existing with the client and a fixed or determinable transaction price. Performance obligations for all transactions are satisfied, and the corresponding revenue is recognized, at a distinct point in time. We have no arrangements with multiple performance obligations. We consider the following when determining if a contract exists (i) contract approval by all parties, (ii) identification of each party’s rights regarding the goods or services to be transferred, (iii) specified payment terms, (iv) commercial substance of the contract, and (v) collectability of substantially all of the consideration is probable.

The determination of whether revenue should be reported on a gross or net basis is based on an assessment of whether we are acting as the principal or an agent in the transaction. In determining whether we are acting as the principal or an agent, we followed the accounting guidance for principal-agent considerations. Making such determinations involves judgment and is based on an evaluation of the terms of each arrangement, none of which are considered presumptive or determinative.

For the majority of transactions on our platform, we report revenue on a net basis as we do not act as the principal in the purchase and sale of digital advertising inventory because we do not have control of the digital advertising inventory and do not set prices agreed upon within the auction marketplace. However, with respect to certain revenue streams for managed advertising campaigns that are transacted through insertion orders, we report revenue on a gross basis, based primarily on our determination that we act as the primary obligor in the delivery of advertising campaigns for buyers with respect to such transactions.

Internal Use Software Development Costs

We capitalize certain internal use software development costs associated with creating and enhancing internally developed software related to our technology infrastructure. These costs include personnel and related employee benefits expenses for employees who are directly associated with and who devote time to software projects, and external direct costs of materials and services consumed in developing or obtaining the software. Software development costs that do not meet the qualification for capitalization, as further discussed below, are expensed as incurred and recorded in technology and development expenses in the results of operations.

57

Table of Contents

Software development activities generally consist of three stages, (i) the planning stage, (ii) the application and infrastructure development stage, and (iii) the post implementation stage. Costs incurred in the planning and post implementation stages of software development, including costs associated with the post-configuration training and repairs and maintenance of the developed technologies, are expensed as incurred. We capitalize costs associated with software developed for internal use when the planning stage is completed, management has authorized further funding for the completion of the project, and it is probable that the project will be completed and perform as intended. Costs incurred in the application and infrastructure development stages, including significant enhancements and upgrades, are capitalized. Capitalization ends once a project is substantially complete and the software and technologies are ready for their intended purpose. There is judgment involved in estimating the stage of development as well as estimating time allocated to a particular project. A significant change in the time spent on each project could have a material impact on the amount capitalized and related amortization expense in subsequent periods.

We amortize internal use software development costs using a straight-line method over a three year estimated useful life, commencing when the software is ready for its intended use. The straight-line recognition method approximates the manner in which the expected benefit will be derived. We determined the life of internal use software based on historical software upgrades and replacement.

On an ongoing basis, we assess if the estimated remaining useful lives of capitalized projects continue to be reasonable based on the remaining expected benefit and usage. If the remaining useful life of a capitalized project is revised, it is accounted for as a change in estimate and the remaining unamortized cost of the underlying asset is amortized prospectively over the updated remaining useful life. During the fourth quarter of 2022, we accelerated the remaining useful lives of certain capitalized internal use software projects due to the integration of our legacy CTV platforms, which resulted in approximately $1.9 million and $0.7 million of incremental amortization expense during the years ended December 31, 2023 and 2022.

We also evaluate internal use software for abandonment and use that as a significant indicator for impairment on a quarterly basis.

Recently Issued Accounting Pronouncements

The information set forth under Note 2 to our "Notes to Consolidated Financial Statements" under the caption "Organization and Summary of Significant Accounting Policies" is incorporated herein by reference.

Item 7A. Quantitative and Qualitative Disclosure About Market Risk

We have operations both in the United States and internationally, and we are exposed to market risks in the ordinary course of our business. These risks include primarily interest rate, foreign exchange, and inflation risks. The risks below may be further exacerbated by the effects of certain global macroeconomic challenges and market conditions.

Interest Rate Fluctuation Risk

Our cash and cash equivalents consist of cash and money market funds, but may from time to time also include commercial paper, with original maturities of three months or less. Our investments may consist of repurchase agreements, U.S. government agency debt, and U.S. treasury debt. The primary objective of our investment activities is to preserve the value of our cash without significantly increasing risk. Because our cash, cash equivalents, and investments have a short maturity, our portfolio’s fair value is relatively insensitive to interest rate changes, however, interest income earned will vary as interest rates change.

We do not have economic interest rate expense exposure on our Convertible Senior Notes due to their fixed interest rate nature. The amount paid upon redemption or maturity, before considering any potential additional amount owed due to increases in our underlying share price above the conversion price, is not based on changes in any interest rate index or underlying market interest rates. It is fixed at 100% of the principal amount of the Convertible Senior Notes plus unpaid interest. Since the Convertible Senior Notes bear a fixed interest rate, we are not exposed to interest rate risk on those notes, however, the fair value of those notes will change as market interest rates change.

As of December 31, 2023, we were party to our Prior Term Loan B Facility, which bore interest rate at a floating interest rate that reset periodically, subject to a 0.75% floor (the "SOFR Floor"). Interest expense has been impacted by floating interest rates as a result of underlying interest rates on our Prior Term Loan B Facility moving above this floor since the second quarter of 2022. As of December 31, 2023, the Company had no outstanding borrowings under the Prior Revolving Credit Facility. 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. As of the end of December 31, 2023, the annualized impact to interest expense for each 100 basis points increase above the SOFR Floor on our Prior Term Loan B Facility is approximately $3.5 million. The actual impact to our financial results of the same increase in interest rates is expected to be lower depending on the timing and magnitude of such rate changes relative to our SOFR Floor, and will be partially offset by higher interest income earned on our cash and cash equivalent balances over the same period. In future periods, we will continue to evaluate our investment opportunities and policy relative to our overall objectives.

58

Table of Contents

On February 6, 2024, we refinanced the Prior Term Loan B Facility with a $365.0 million New Term Loan B Facility. We do not believe that an increase or decrease in interest rates of 100 basis points on the New Term Loan B Facility will have a material effect on our operating results or financial condition as compared to the annualized impact on our Prior Term Loan B Facility, which is discussed above.

With regard to all debt currently outstanding as of December 31, 2023 and to debt outstanding under the New Credit Agreement, the Company is potentially exposed to refinancing risk in the future, should the Company seek to refinance its debt or raise new debt. As such, the type, cost, and terms of any new debt potentially raised in the future may differ from that of our existing debt agreements.

Foreign Currency Exchange Risk

As a U.S. based company that does business around the globe, we have foreign currency risks related to our revenue and expenses denominated in currencies other than the U.S. Dollar, principally the Australian Dollar, British Pound, Canadian Dollar, Euro, Japanese Yen, and New Zealand Dollar. Foreign exchange rate volatility is influenced by many factors that we cannot forecast with reliable accuracy. In the event our non-U.S. Dollar denominated revenue and expenses increase, or the volatility of the foreign currencies that we transact in increases, our operating results may be more greatly affected by fluctuations in the exchange rates of those foreign currencies. In addition, we have experienced and will continue to experience fluctuations in our net income (loss) as a result of transaction gains and losses related to translating certain cash balances, trade accounts receivable and payable balances and intercompany balances that are denominated in currencies other than the U.S. Dollar. The effect of an immediate 10% adverse change in foreign exchange rates on foreign currency-denominated monetary assets and liabilities at December 31, 2023 and December 31, 2022, including intercompany balances, would result in a foreign currency loss of approximately $9.5 million and $10.5 million, respectively. At this time we do not, but we may in the future, enter into derivatives or other financial instruments in an attempt to hedge our foreign currency exchange risk.

Inflation Risk

We do not believe that cost inflation has had a material effect on our business, financial condition, or results of operations. If our costs were to become subject to significant inflationary pressures, we might not be able to fully offset such higher costs through price increases. Our inability or failure to do so could harm our business, financial condition, and results of operations. This risk of cost inflation is distinct from the risk that inflation throughout the broader economy could lead to reduced ad spend and indirectly harm our business, financial condition, and results of operations. For a discussion of the indirect results of inflation on our business, see "Macroeconomic Developments."

59

Table of Contents

Item 8. Financial Statements and Supplementary Data

MAGNITE, INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm (PCAOB ID No. 34) 61

Consolidated Financial Statements:

Consolidated Balance Sheets 63

Consolidated Statements of Operations 64

Consolidated Statements of Comprehensive Loss 65

Consolidated Statements of Stockholders' Equity 66

Consolidated Statements of Cash Flows 67

Notes to Consolidated Financial Statements 69

60

Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the stockholders and the Board of Directors of Magnite, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Magnite, Inc. and subsidiaries (the "Company") as of December 31, 2023 and 2022, the related consolidated statements of operations, comprehensive loss, stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2023 and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2023, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 28, 2024, expressed an unqualified opinion on the Company's internal control over financial reporting.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Revenue — Refer to Notes 2 and 4 to the financial statements.

Critical Audit Matter Description

The Company generates revenue from transactions where it provides a platform for the purchase and sale of digital advertising inventory. The Company uses automated systems to process and record revenue based on contractual terms with buyers and publishers, and its revenue is comprised of a significant volume of low-dollar transactions.

We identified revenue as a critical audit matter because the Company’s systems to process and record revenue are highly automated. This required increased extent of effort, including the need for us to involve professionals with expertise in Information Technology (IT) to identify, test, and evaluate the Company’s systems, software applications, and automated controls.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the Company’s systems to process revenue transactions included the following, among others:

•With the assistance of our IT specialists, we:

61

Table of Contents

◦Identified the significant systems used to process revenue transactions and tested the general IT controls over each of these systems, including testing of user access controls, change management controls, and IT operations controls.

◦Performed testing of system interface controls and automated controls within the relevant revenue streams, as well as controls designed to ensure the accuracy and completeness of revenue.

◦Independently created test transactions and traced such transactions through the systems to final output for financial reporting.

•We tested internal controls within the relevant revenue business processes, including those in place to reconcile the various systems to the Company’s general ledger.

•We evaluated recorded revenue and revenue trends and used data analytics to analyze transactional revenue data.

•We used technology-based data analysis tools to inspect journal entries to:

◦Identify significant relationships in the revenue population.

◦Sufficiently understand identified significant relationships and related accounts affecting revenue.

•We performed audit procedures on those related accounts determined to have a significant relationship with revenue. Such procedures included:

◦For a sample of accounts receivable balances, evaluating responses to confirmations sent to customers or other evidence such as cash receipts received after year end.

◦For a sample of accounts payables – seller balances, performing detail transaction testing by agreeing the amounts recognized to source documents.

◦For a sample of cash disbursements made after year end, evaluating whether the amounts were appropriately included in accounts payable – seller as of the balance sheet date.

◦Analytical procedures on the accounts payable – seller balance by developing an independent expectation for the recorded balance based on a historical relationship with revenue.

/s/ Deloitte & Touche LLP

Los Angeles, California

February 28, 2024

We have served as the Company's auditor since2018.

62

Table of Contents

MAGNITE, INC.

CONSOLIDATED BALANCE SHEETS

(In thousands, except par values)

ASSETS

Current assets:

Prepaid expenses and other current assets 20,508 23,501

Internal use software development costs, net 21,926 23,671

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:

Debt, non-current, net of debt issuance costs 532,986 722,757

Deferred tax liabilities, net 680 5,072

Other liabilities, non-current 1,657 1,723

Commitments and contingencies (Note 16)

STOCKHOLDERS' EQUITY

Accumulated other comprehensive loss (2,076) (3,151)

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

63

Table of Contents

MAGNITE, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)

Year Ended

Expenses:

Other (income) expense:

Gain on extinguishment of debt (26,480) — —

Net income (loss) per share:

Weighted average shares used to compute net income (loss) per share:

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

64

Table of Contents

MAGNITE, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(In thousands)

Year Ended

Other comprehensive income (loss):

Foreign currency translation adjustments 1,075 (1,775) (419)

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

65

Table of Contents

MAGNITE, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands)

Shares Amount Shares Amount

Issuance of common stock related to RSU vesting 4,624 — — — — — — —

Shares withheld related to net share settlement (289) — (6,496) — — — — (6,496)

Purchase of treasury stock — — — — — (349) (6,007) (6,007)

Other comprehensive loss — — — (419) — — — (419)

Net income — — — — 65 — — 65

Exercise of common stock options 613 — 2,234 — — — — 2,234

Issuance of common stock related to RSU vesting 3,276 — — — — — — —

Other comprehensive loss — — — (1,775) — — — (1,775)

Exercise of common stock options 395 — 2,166 — — — — 2,166

Issuance of common stock related to RSU and PSU vesting 4,777 — — — — — — —

Other comprehensive income — — — 1,075 — — — 1,075

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

66

Table of Contents

MAGNITE, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

Year Ended

OPERATING ACTIVITIES:

Impairment of intangible assets — 3,320 —

Gain on extinguishment of debt (26,480) — —

(Gain) loss on disposal of property and equipment 311 (86) 130

Provision for (recovery of) doubtful accounts 4,666 (163) 49

Amortization of debt discount and issuance costs 6,279 6,785 4,925

Unrealized foreign currency (gain) loss, net 1,266 (271) (2,259)

INVESTING ACTIVITIES:

Capitalized internal use software development costs (10,619) (13,582) (11,431)

FINANCING ACTIVITIES:

Proceeds from Convertible Senior Notes offering — — 400,000

Proceeds from issuance of debt, net of debt discount — — 349,200

Payment for capped call options — — (38,960)

Payment for debt issuance costs — — (30,378)

Repurchase of Convertible Senior Notes (165,518) — —

Repayment of financing lease (276) (807) (645)

Payment of indemnification claims holdback (2,313) (1,582) —

CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH (283) 95,809 112,962

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

67

Table of Contents

MAGNITE, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS-(Continued)

(In thousands)

Year Ended

Restricted cash included in prepaid expenses and other current assets — 248 240

Restricted cash included in other assets, non-current — — 52

SUPPLEMENTAL DISCLOSURES OF OTHER CASH FLOW INFORMATION:

Purchase consideration - indemnification claims holdback $ — $ 2,293 $ 1,602

Common stock and options issued for mergers and acquisitions $ — $ — $ 495,591

Debt discount, non-cash $ — $ — $ 10,800

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

68

Table of Contents

MAGNITE, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1—Nature of Operations

Company Overview

Magnite, Inc. ("Magnite" or the "Company"), formerly known as The Rubicon Project, Inc., was formed in Delaware and began operations on April 20, 2007. The Company operates a sell side advertising platform that offers buyers and sellers of digital advertising a single partner for transacting globally across all channels, formats, and auction types.

The Company's common stock is listed on the Nasdaq Global Select Market of The Nasdaq Stock Market LLC ("Nasdaq") under the symbol "MGNI." Magnite has its principal offices in New York City, Los Angeles, Denver, London, and Sydney, and additional offices in Europe, Asia, North America, and South America.

The Company provides a technology solution to automate the purchase and sale of digital advertising inventory for buyers and sellers globally, across all channels, formats and auction types. The Company's platform features applications and services for sellers of digital advertising inventory, or publishers, that own or operate websites, applications, CTV channels, and other digital media properties, to manage and monetize their inventory; applications and services for buyers, including advertisers, agencies, agency trading desks, and demand side platforms, to buy digital advertising inventory; and a transparent, independent marketplace that brings buyers and sellers together and facilitates intelligent decision making and automated transaction execution at scale. The Company's clients include many of the world's leading sellers and buyers of digital advertising inventory.

Sellers monetize their inventory through the Company’s platform by seamlessly connecting to a global market of integrated buyers that transact through real-time bidding, which includes direct sale of premium inventory to a buyer, referred to as private marketplace, and open auction bidding, where buyers bid against each other in a real-time auction for the right to purchase a publisher’s inventory, referred to as open marketplace. At the same time, buyers leverage the Company’s platform to manage their advertising spending and reach their target audiences, simplify order management and campaign tracking, obtain actionable insights into audiences for their advertising, and access impression-level purchasing from thousands of sellers.

Note 2—Organization and Summary of Significant Accounting Policies

Basis of Consolidation

The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, and include the operations of the Company and its wholly owned subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation.

Segments

Management has determined that the Company operates as one segment. The Company’s chief operating decision maker reviews financial information on an aggregated and consolidated basis, together with certain operating and performance measures principally to make decisions about how to allocate resources and to measure the Company’s performance.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported and disclosed financial statements and accompanying footnotes. Actual results could differ materially from these estimates.

On an ongoing basis, management evaluates its estimates, primarily those related to: (i) revenue recognition criteria, including the determination of revenue reporting as net versus gross in the Company’s revenue arrangements, (ii) accounts receivable and allowances for doubtful accounts, (iii) amounts capitalized and the useful lives of intangible assets, internal use software development costs, and property and equipment, (iv) valuation of long-lived assets and their recoverability, including goodwill, and (v) the realization of tax assets and estimates of tax liabilities.

These estimates are based on historical data and experience, as well as various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Estimates relating to the allowance for doubtful accounts, amounts capitalized and estimated useful lives of internal-use software development costs, estimated useful lives of long-lived assets, recoverability of intangible assets and goodwill, and income taxes, including the realization of tax assets and estimates of tax

69

Table of Contents

liabilities require the selection of appropriate valuation methodologies and models, and judgment in evaluating ranges of assumptions and financial inputs. Actual results may differ materially from those estimates under different assumptions or circumstances.

Revenue Recognition

The Company generates revenue from transactions where it provides a platform for the purchase and sale of digital advertising inventory. Generally, the Company's revenue is based on a percentage of the ad spend that runs through its platform, although for certain clients, services, or transaction types the Company may receive a fixed CPM for each impression sold, and for advertising campaigns that are transacted through insertion orders the Company earns revenue based on the full amount of ad spend that runs through its platform. In addition, the Company may receive certain fixed monthly fees for the use of its platform or products. The Company's platform dynamically connects sellers and buyers of advertising inventory in a digital marketplace. The Company's solution incorporates proprietary machine-learning algorithms, sophisticated data processing, high-volume storage, detailed analytics capabilities, and a distributed infrastructure.Digital advertising inventory is created when consumers access sellers’ content. Sellers provide digital advertising inventory to the Company's platform in the form of advertising requests, or ad requests. When the Company receives ad requests from sellers, it sends bid requests to buyers, which enable buyers to bid on sellers’ digital advertising inventory. Winning bids can create advertising, or paid impressions, for the seller to present to the consumer.

The total volume of spending between buyers and sellers on the Company's platform is referred to as advertising spend. The Company keeps a percentage of that advertising spend as a fee, and remits the remainder to the seller. The fee that the Company retains from the gross advertising spend on its platform is recognized as revenue. The fee earned on each transaction is based on the pre-existing agreement between the Company and the seller and the clearing price of the winning bid. The Company recognizes revenue upon fulfillment of its performance obligation to a client, which occurs at the point in time an ad renders and is counted as a paid impression, subject to a contract existing with the client and a fixed or determinable transaction price. The Company does not have arrangements with multiple performance obligations. The Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which the Company recognizes revenue at the amount to which it has the right to invoice for services performed. The Company considers the following when determining if a contract exists (i) contract approval by all parties, (ii) identification of each party’s rights regarding the goods or services to be transferred, (iii) specified payment terms, (iv) commercial substance of the contract, and (v) collectability of substantially all of the consideration is probable.

The determination of whether revenue should be reported on a gross or net basis is based on an assessment of whether the Company is acting as the principal or an agent in the transaction. In determining whether the Company is acting as the principal or an agent, the Company follows the accounting guidance for principal-agent considerations. Making such determinations involves judgment and is based on an evaluation of the terms of each arrangement, none of which are considered presumptive or determinative.

Expenses

The Company classifies its expenses into the following categories:

Cost of Revenue. The Company's cost of revenue consists primarily of cloud hosting, data center, and bandwidth costs, ad protection costs, depreciation and maintenance expense of hardware supporting the Company's revenue-producing platform, amortization of software costs for the development of the Company's revenue-producing platform, amortization expense associated with acquired developed technologies, and personnel costs. In addition, for revenue booked on a gross basis, cost of revenue includes traffic acquisition costs. Personnel costs included in cost of revenue include salaries, bonuses, and stock-based compensation, and are primarily attributable to personnel in the Company's network operations group who support the Company's platform. The Company capitalizes costs associated with software that is developed or obtained for internal use and amortizes the costs associated with its revenue-producing platform in cost of revenue over their estimated useful lives. The Company amortizes acquired developed technologies over their estimated useful lives.

Sales and Marketing. The Company's sales and marketing expenses consist primarily of personnel costs, including salaries, bonuses, and stock-based compensation, as well as marketing expenses such as brand marketing, travel expenses, trade shows and marketing materials, amortization expense associated with client relationships, backlog, and non-compete agreements from the Company's business acquisitions, professional services, facilities-related costs, and depreciation expense. The Company's sales and support organization focuses on increasing the adoption of the Company's solution by existing and new buyers and sellers and supports ongoing client relationships. The Company amortizes acquired intangibles associated with client relationships and backlog from its business acquisitions over their estimated useful lives.

70

Table of Contents

Technology and Development. The Company's technology and development expenses consist primarily of personnel costs, including salaries, bonuses, and stock-based compensation, as well as professional services associated with the ongoing development and maintenance of the Company's solution, third-party software license costs, facilities-related costs, and depreciation and amortization expense. These expenses include costs incurred in the development, implementation, and maintenance of internal use software, including platform and related infrastructure. Technology and development costs are expensed as incurred, except to the extent that such costs are associated with internal use software development that qualifies for capitalization, which are then recorded as internal use software development costs, net on the Company's consolidated balance sheets. The Company amortizes internal use software development costs that relate to its revenue-producing activities on the Company's platform to cost of revenue and amortize other internal use software development costs to technology and development costs or general and administrative expenses, depending on the nature of the related project. The Company amortizes acquired intangibles associated with technology and development functions from its business acquisitions over their estimated useful lives.

General and Administrative. The Company's general and administrative expenses consist primarily of personnel costs, including salaries, bonuses, and stock-based compensation, associated with the Company's executive, finance, legal, human resources, compliance, and other administrative personnel, as well as accounting and legal professional services fees, facilities-related costs, depreciation expense, bad debt expense, and other corporate-related expenses.

Merger, Acquisition, and Restructuring Costs. The Company's merger, acquisition, and restructuring costs consist primarily of professional service fees associated with merger and acquisition activities, cash-based employee termination costs, related stock-based compensation charges, and other restructuring activities, including facility closures, relocation costs, contract termination costs, and impairment costs of abandoned technology associated with restructuring activities.

Stock-Based Compensation

Compensation expense related to employee and non-employee stock-based awards is measured and recognized in the consolidated financial statements based on the fair value of the awards granted. The Company grants awards to employees that vest based solely on continued service, or service conditions, awards that vest based on the achievement of performance targets, or performance conditions, and awards that vest based on the Company's stock price exceeding a peer index, or market conditions. The fair value of restricted stock units that vest based on continued service is equal to the closing price of the Company's common stock as reported on the Nasdaq on the grant date. The fair value of each option award containing service conditions is estimated on the grant date using the Black-Scholes option-pricing model. The fair value of awards containing market conditions is estimated using a Monte-Carlo simulation model. For service condition awards, stock-based compensation expense is recognized on a straight-line basis over the requisite service periods of the awards, which is generally four years. For performance condition and market condition awards, stock-based compensation expense is recognized using a graded vesting model over the requisite service period of the awards. For market condition awards, expense recognized is not subsequently reversed if the market conditions are not achieved.

The assumptions and estimates used in the Black-Scholes pricing model are as follows:

Fair Value of Common Stock. The fair value of common stock is based on the closing price of the Company's common stock as reported on the Nasdaq on the grant date.

Risk-Free Interest Rate. The Company bases the risk-free interest rate used in the Black-Scholes option-pricing model on the yields of U.S. Treasury securities with maturities appropriate for the term of stock option awards.

Expected Term. For employee stock options the expected term is determined based on historical trends. The expected term of employee stock options that contain performance conditions represents the weighted-average period that the stock options are estimated to remain outstanding.

Volatility. The computation of the expected volatility assumption is based on the historical volatility of the Company’s common stock.

Dividend Yield. The dividend yield assumption is based on the Company’s history and current expectations of dividend payouts. The Company has never declared or paid any cash dividends on its common stock and does not anticipate paying any cash dividends in the foreseeable future, so the Company used an expected dividend yield of zero.

Determining the fair value of stock-based awards with performance and market conditions requires judgment. The Company's use of the Monte-Carlo simulation model requires the input of subjective assumptions, such as the expected term of the award, the expected volatility of the price of the Company’s common stock, risk-free interest rates, the expected dividend yield of the Company’s common stock, in addition for those awards containing market conditions, which also include expected volatilities of selected peer companies, and expected correlation coefficients of the Company and those of the selected peer companies. The assumptions used in the Company’s valuation model represent management’s best estimates. These estimates involve inherent

71

Table of Contents

uncertainties and the application of management’s judgment. If factors change and different assumptions are used, the Company’s stock-based compensation expense could be materially different in the future.

Income Taxes

Deferred income tax assets and liabilities are determined based upon the net tax effects of the differences between the Company’s consolidated financial statement carrying amounts and the tax basis of assets and liabilities and are measured using the enacted tax rate expected to apply to taxable income in the years in which the differences are expected to be reversed.

A valuation allowance is used to reduce some or all of the deferred tax assets if, based upon the weight of available evidence, it is more likely than not that those deferred tax assets will not be realized. The Company maintains a partial valuation allowance to offset its domestic net deferred tax assets due to the uncertainty of realizing future income tax benefits from the net operating loss carryforwards and other deferred tax assets.

The Company recognizes the income tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The income tax benefits recognized in the consolidated financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized. The Company recognizes interest and penalties accrued related to its uncertain tax positions in its income tax provision (benefit) in the consolidated statements of operations.

Capital Stock

The Company has authorized capital stock of 500,000,000 shares of common stock and 10,000,000 shares of preferred stock. The Company has issued common stock, which is included in outstanding common stock on the Company's consolidated balance sheets. During 2021 and 2022, the Company repurchased shares of common stock, which was recorded as treasury stock on the Company's consolidated balance sheets. In 2022, all repurchased shares, including any outstanding treasury stock from 2021, were subsequently retired. The Company has not issued any shares of its preferred stock subsequent to the Company's initial public offering ("IPO") and does not have any preferred stock outstanding.

The Company is required to reserve and keep available out of its authorized but unissued shares of common stock such number of shares sufficient to affect the conversion of all shares granted and available for grant under the Company’s stock award plans. The number of shares of the Company's stock reserved for these purposes at December 31, 2023 was 44,592,265.

The board of directors is authorized to establish, from time to time, the number of shares to be included in each series of preferred stock, and to fix the designation, powers, privileges, preferences, and relative participating, optional or other rights, if any, of the shares of each series of preferred stock, and any of its qualifications, limitations or restrictions.

Net Income (Loss) Per Share Attributable to Common Stockholders

Basic net income (loss) per share of common stock is calculated by dividing the net income (loss) by the weighted-average number of shares of common stock outstanding. Diluted income per share considers adjustments to net income and the weighted-average number of shares of common stock outstanding for the effect of potentially dilutive securities during the period. Potentially dilutive securities consist of stock options, restricted stock units, performance stock units, potential shares issuable under the Company's Employee Stock Purchase Plan ("ESPP"), and potential shares issuable as part of the Convertible Senior Notes. Diluted income per share is computed utilizing the treasury method for options, restricted stock units, performance stock units, and potential ESPP shares. Diluted income per share for the Convertible Senior Notes is calculated under the if-converted method. Potential common share equivalents are excluded where their inclusion would be anti-dilutive. For periods in which the Company reports net loss, diluted net loss per share is the same as basic net loss per share because the effects of potentially dilutive securities would be anti-dilutive.

Comprehensive Income (Loss)

Comprehensive income (loss) encompasses all changes in equity other than those arising from transactions with stockholders, and consists of net income (loss), unrealized gains (losses) on investments and foreign currency translation adjustments.

Cash and Cash Equivalents

The Company invests excess cash primarily in money market funds, corporate debt securities, and highly liquid debt instruments of the U.S. government and its agencies.The Company classifies investments held in money market funds as cash equivalents because the money market funds have weighted-average maturities at the date of purchase of less than 90 days, are

72

Table of Contents

freely redeemable into cash and have a constant net asset value. Investments held in U.S. government and agency bonds and corporate debt securities with stated maturities of less than one year are classified as short-term investments.

Restricted Cash

The Company classifies certain restricted cash balances within prepaid expenses and other current assets and other assets, non-current on the consolidated balance sheets based upon the term of the remaining restrictions.

Accounts Receivable Allowance for Doubtful Accounts

Accounts receivable are recorded at the invoiced amount, are unsecured, and do not bear interest. The allowance for doubtful accounts is based on the best estimate of the amount of probable credit losses in existing accounts receivable. The allowance for doubtful accounts 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 client information, subsequent collection history and other relevant data. The Company reviews the allowance for doubtful accounts on a quarterly basis. Account balances are charged off against the allowance when the Company believes it is probable the receivable will not be recovered.

Property and Equipment, Net

Property and equipment are recorded at historical cost, less accumulated depreciation and amortization. Depreciation is computed using the straight-line method based upon the estimated useful lives of the assets. The estimated useful lives of the Company’s property and equipment are as follows:

Years

Computer equipment and network hardware 3

Furniture, fixtures and office equipment 5 to 7

Leasehold improvements Shorter of useful life or life of lease

Repair and maintenance costs are charged to expense as incurred, while renewals and improvements are capitalized. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and any resulting gain or loss is reflected in the Company’s results of operations.

Internal Use Software Development Costs

The Company capitalizes certain internal use software development costs associated with creating and enhancing internally developed software related to the Company’s technology infrastructure. These costs include personnel and related employee benefits expenses for employees who are directly associated with and who devote time to software projects, and external direct costs of materials and services consumed in developing or obtaining the software. Software development costs that do not meet the qualification for capitalization, as further discussed below, are expensed as incurred and recorded in technology and development expenses in the results of operations.

Software development activities generally consist of three stages, (i) the planning stage, (ii) the application and infrastructure development stage, and (iii) the post implementation stage. Costs incurred in the planning and post implementation stages of software development, including costs associated with the post-configuration training and repairs and maintenance of the developed technologies, are expensed as incurred. The Company capitalizes costs associated with software developed for internal use when the planning stage is completed, management has authorized further funding for the completion of the project, and it is probable that the project will be completed and perform as intended. Costs incurred in the application and infrastructure development stages, including significant enhancements and upgrades, are capitalized. Capitalization ends once a project is substantially complete and the software and technologies are ready for their intended purpose. Internal use software development costs are amortized using a straight-line method over the estimated useful life, which is generally three years, commencing when the software is ready for its intended use. The straight-line recognition method approximates the manner in which the expected benefit will be derived. On an ongoing basis, the Company assesses the remaining estimated useful lives of internal use software projects. If remaining useful lives are revised, the change is accounted for as a change in estimate.

The Company does not transfer ownership of its software, or lease its software, to third parties.

Intangible Assets

Intangible assets primarily consist of acquired developed technology, client relationships, and in-process research and development projects resulting from business combinations, which are recorded at acquisition-date fair value, less accumulated amortization. The Company determines the appropriate useful life of its intangible assets by performing an analysis of expected cash

73

Table of Contents

flows of the acquired assets. Intangible assets are amortized over their estimated useful lives using a straight-line method, which approximates the pattern in which the economic benefits are consumed.

The Company’s intangible assets are being amortized over their estimated useful lives as follows:

Years

Developed technology 5

In-process research and development 3 to 5

Customer relationships 0.5 to 4

Non-compete agreements 1 to 2

Other intangible assets 0.25 to 1.5

On an ongoing basis, the Company assesses the remaining estimated useful lives of intangible assets. If remaining useful lives are revised, the change is accounted for as a change in estimate.

Intangible assets are reviewed for impairment indicators at least annually and whenever events or changes in circumstances indicate that the carrying amount of the assets might not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner in which an asset is used, or any other significant adverse change that would indicate that the carrying amount of an asset or group of assets may not be recoverable. For intangible assets used in operations, impairment losses are only recorded if the asset’s carrying amount is not recoverable through its undiscounted, probability-weighted future cash flows at the asset group level that represents the lowest level of independent cash flows. The Company measures the impairment loss based on the difference between the carrying amount and estimated fair value.

Impairment of Long-Lived Assets including Internal Use Capitalized Software Costs

The Company assesses the recoverability of its long-lived assets when events or changes in circumstances indicate their carrying value may not be recoverable. Such events or changes in circumstances may include: a significant adverse change in the extent or manner in which a long-lived asset is being used, significant adverse change in legal factors or in the business climate that could affect the value of a long-lived asset, an accumulation of costs significantly in excess of the amount originally expected for the acquisition or development of a long-lived asset, current or future operating or cash flow losses that demonstrate continuing losses associated with the use of a long-lived asset, or a current expectation that, more likely than not, a long-lived asset will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. The Company performs impairment testing at the asset group level that represents the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. The Company assesses recoverability of a long-lived asset by determining whether the carrying value of the asset group can be recovered through projected undiscounted cash flows over their remaining lives. If the carrying value of the asset group exceeds the forecasted undiscounted cash flows, an impairment loss is recognized, measured as the amount by which the carrying amount exceeds estimated fair value. An impairment loss is charged to operations in the period in which management determines such impairment.

Business Combinations

The results of businesses acquired in a business combination are included in the Company’s consolidated financial statements from the date of acquisition. The Company allocates the purchase price of a business combination, which is the sum of the consideration provided, which may consist of cash, equity or a combination of the two, to the identifiable assets and liabilities of the acquired business at their acquisition date fair values. The excess of the purchase price over the amount allocated to the identifiable assets and liabilities, if any, is recorded as goodwill. Determining the fair value of assets acquired and liabilities assumed requires management to use significant judgment and estimates including the selection of valuation methodologies, estimates of future revenues and cash flows, discount rates and selection of comparable companies.

When the Company issues stock-based or cash awards to an acquired company’s stockholders, the Company evaluates whether the awards are contingent consideration or compensation for post-business combination services. The evaluation includes, among other things, whether the vesting of the awards is contingent on the continued employment of the selling stockholder beyond the acquisition date. If continued employment is required for vesting, the awards are treated as compensation for post-acquisition services and recognized as expense over the requisite service period.

The Company estimates the fair value of intangible assets acquired generally using a discounted cash flow approach, which includes an analysis of the future cash flows expected to be generated by the asset and the risk associated with achieving these cash flows. The key assumptions used in the discounted cash flow model include the discount rate that is applied to the forecasted future

74

Table of Contents

cash flows to calculate the present value of those cash flows and the estimate of future cash flows attributable to the acquired intangible asset, which include revenue, expenses and taxes. The carrying value of acquired working capital assets and liabilities approximates its fair value, given the short-term nature of these assets and liabilities.

Acquisition-related transaction costs are not included as a component of consideration transferred, but are accounted for as an expense in the period in which the costs are incurred.

Goodwill

Goodwill represents the excess of the aggregate fair value of the consideration transferred in a business combination over the fair value of the assets acquired, net of liabilities assumed. Goodwill is not amortized, but is subject to impairment testing conducted annually during the fourth quarter or more frequently if events or changes in circumstances indicate that goodwill may be impaired.

In accordance with guidance related to impairment testing, the Company has the option to first assess qualitative factors to determine whether or not it is necessary to perform the quantitative goodwill impairment test. If the qualitative assessment option is not elected, or if the qualitative assessment indicates that it is more likely than not that the fair value is less than its carrying amount, a quantitative analysis is then performed. The quantitative analysis, if performed, compares the estimated fair value of the Company with its respective carrying amount, including goodwill. If the estimated fair value of the Company exceeds its carrying amount, including goodwill, goodwill is considered not to be impaired and no additional steps are necessary. If the fair value is less than the carrying amount, including goodwill, then an impairment adjustment must be recorded up to the carrying amount of goodwill.

The Company operates as a single operating segment and has identified a single reporting unit.

Operating Leases

The Company determines if an arrangement is a lease at inception. A contract is or contains a lease if it conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company's classes of assets that are leased include office facilities, data centers, and equipment. The Company has elected not to recognize short-term leases on the balance sheet, nor separate lease and non-lease components for data center leases. In addition, the Company utilized the portfolio approach to group leases with similar characteristics together.

For identified leases, the Company used its incremental borrowing rate to discount the related future payment obligations, which represents the rate of interest the Company would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment.

The Company records rent expense for operating leases, including leases of office locations, data centers, and equipment, on a straight-line basis over the lease term. The straight-line calculation of rent expense includes rent escalations on certain leases, as well as lease incentives provided by the landlords, including payments for leasehold improvements and rent-free periods. The Company begins recognition of rent expense on the commencement date, which is generally the date that the asset is made available for use. Lease liability, which represents the present value of the Company's obligation related to the estimated future lease payments, is included in lease liabilities, current and lease liabilities, non-current within the consolidated balance sheets. These liability balances are reduced as lease related payments are made. For operating leases, the right of use ("ROU") asset is amortized on a periodic basis over the expected term of the lease (see Note 15).

Fair Value of Financial Instruments

The carrying amounts of the Company's cash equivalents, accounts receivable, accounts payable, accrued expenses, and seller payables approximate fair value due to the short-term nature of these instruments. Certain assets of the Company are recorded at their fair value, using the fair value hierarchy, on a recurring basis, and other assets and liabilities, including goodwill and intangible assets are subject to measurement at fair value on a non-recurring basis if they are deemed to be impaired as a result of an impairment review (see Note 5).

Concentration of Risk

Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash, cash equivalents, restricted cash and accounts receivable. Cash maintained with financial institutions typically exceeds applicable federally insured limits in the U.S. and may not be covered by similar local depositor insurance schemes for cash held in foreign currencies or in bank accounts outside of the U.S. Cash equivalents, primarily money market fund investments, are not insured by federal insurance schemes and are exposed to other potential risks linked to high concentration among major custodial banks.

75

Table of Contents

Accounts receivable include amounts due from buyers with principal operations primarily in the United States. The Company performs ongoing credit evaluations of its buyers.

At December 31, 2023, two buyers accounted for 48% and 11%, respectively, of consolidated accounts receivable, net. At December 31, 2022, two buyers accounted for 45% and 9%, respectively, of accounts receivable, net.

The Company recognizes revenue from its contracts with sellers. No seller of advertising inventory accounted for 10% or more of revenue during the years ended December 31, 2023, 2022, and 2021.

At December 31, 2023, one seller of advertising inventory accounted for 29% of accounts payable and accrued expenses and at December 31, 2022, one seller of advertising inventory accounted for 28% of accounts payable and accrued expenses.

Foreign Currency Transactions and Translation

Transactions in foreign currencies are translated into the functional currency of the applicable entity at the rates of exchange in effect at the date of the transaction. Foreign exchange gains or losses are included in foreign exchange (gain) loss, net in the accompanying consolidated statements of operations. To the extent that the functional currency is different from the U.S. Dollar, the financial statements have then been translated into U.S. Dollars using period-end exchange rates for assets and liabilities and average exchange rates for the results of operations. Foreign currency translation gains and losses are included as a component of accumulated other comprehensive income (loss) on the consolidated balance sheets.

Recently Adopted Accounting Standards

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805) – Accounting for Contract Assets and Contract Liabilities from Contracts with Customers ("ASU 2021-08"). ASU 2021-08 requires the recognition and measurement of contract assets and contract liabilities acquired in a business combination in accordance with ASC 606, Revenue from Contracts with Customers. Considerations to determine the amount of contract assets and contract liabilities to record at the acquisition date include the terms of the acquired contract, such as timing of payment, identification of each performance obligation in the contract and allocation of the contract transaction price to each identified performance obligation on a relative standalone selling price basis as of contract inception. ASU 2021-08 is effective for the Company beginning in the first quarter of 2023. The Company adopted this standard January 1, 2023 and will apply the guidance to future acquisitions, if any.

Recent Accounting Pronouncements Not Yet Adopted

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280) – Improvements to Reportable Segment Disclosures ("ASU 2023-07"). ASU 2023-07 expands public entities’ segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the chief operating decision maker and included within each reported measure of segment profit or loss, an amount and description of its composition for other segment items, and interim disclosures of a reportable segment’s profit or loss and assets. ASU 2023-07 is effective for annual periods beginning after December 15, 2023 and for interim periods beginning after December 15, 2024. Early adoption is permitted. The Company is currently evaluating the impact of adopting this new accounting guidance on its disclosures.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) – Improvements to Income Tax Disclosures ("ASU 2023-09") to enhance income tax information primarily through changes in the rate reconciliation and income taxes paid information. ASU 20203-09 is effective for annual periods beginning after December 15, 2024 on a prospective basis. The Company is evaluating the impact of adopting this new accounting guidance on its disclosures.

The Company does not believe there are any other recently issued and effective or not yet effective pronouncements that would have or are expected to have a material impact on the Company’s present or future consolidated financial statements.

76

Table of Contents

Note 3—Net Income (Loss) Per Share

The following table presents the basic and diluted net income (loss) per share:

Year Ended

(in thousands, except per share amounts)

Basic Income (Loss) Per Share:

Basic net income (loss) per share $ (1.17) $ (0.98) $ —

Diluted Income (Loss) Per Share:

Denominator:

Dilutive effect of weighted-average restricted stock units — — 5,294

Dilutive effect of weighted-average common stock options — — 4,435

Dilutive effect of weighted-average performance stock units — — 197

Dilutive effect of weighted-average ESPP shares — — 41

Diluted net income (loss) per share $ (1.17) $ (0.98) $ —

The following weighted-average shares have been excluded from the calculation of diluted net income (loss) per share attributable to common stockholders for each period presented because they are anti-dilutive:

Year Ended

(in thousands)

Unvested restricted stock units 1,608 1,506 —

Options to purchase common stock 1,566 1,864 —

Unvested performance stock units 84 124 —

Total shares excluded from net income (loss) per share 8,270 9,774 4,940

For the years ended December 31, 2023 and December 31, 2022, the Company excluded outstanding performance stock units from the calculation of diluted net loss per share because they were anti-dilutive. As of December 31, 2023, the performance stock units granted during 2021, 2022, and 2023 had expected achievement levels of 0%, 58%, and 46%, respectively. As of December 31, 2022, the performance stock units granted during 2020, 2021, and 2022 had expected achievement level of 116%, 0%, and 81%, respectively. As of December 31, 2021, the Company included outstanding performance stock units in the calculation of diluted net income per share. As of December 31, 2021, the performance stock units granted during 2020 and 2021 had expected achievement levels of 150% and 0%, respectively. Refer to Note 12 —"Stock-Based Compensation" for additional information related to performance stock units.

For the years ended December 31, 2023, 2022, and 2021, shares that would be issuable assuming conversion of all of the Convertible Senior Notes (as defined in Note 17) were excluded from the calculation of diluted loss per share because they were anti-dilutive. The Convertible Senior Notes have an initial conversion rate of 15.6539 shares of common stock per $1,000 principal amount of the Convertible Senior Notes, which will be subject to anti-dilution adjustments in certain circumstances. As of December 31, 2023, 2022, and 2021, the number of shares that would be issuable assuming conversion of all of the Convertible Senior Notes is approximately 3,210,098, 6,261,560, and 6,261,560, respectively.

77

Table of Contents

Note 4—Revenues

For the majority of transactions on the Company's platform, the Company reports revenue on a net basis as it does not act as the principal in the purchase and sale of digital advertising inventory because it does not have control of the digital advertising inventory and does not set prices agreed upon within the auction marketplace. For certain advertising campaigns that are transacted through insertion orders, the Company reports revenue on a gross basis, based primarily on its determination that the Company acts as the primary obligor in the delivery of advertising campaigns for buyers with respect to such transactions.

The following table presents the Company's revenue recognized on a net basis and on a gross basis for the years ended December 31, 2023, 2022, and 2021:

Year Ended

(in thousands, except percentages)

Revenue:

The following table presents the Company's revenue by channel for the years ended December 31, 2023, 2022, 2021:

Year Ended

(in thousands, except percentages)

Channel:

The following table presents the Company's revenue disaggregated by geographic location, based on the location of the Company's sellers:

Year Ended

(in thousands)

Payment terms are specified in agreements between the Company and the buyers and sellers on its platform. The Company generally bills buyers at the end of each month for the full purchase price of impressions filled in that month. The Company recognizes volume discounts as a reduction of revenue as they are incurred. Specific payment terms may vary by agreement, but are generally seventy-five days or less. The Company's accounts receivable are recorded at the amount of gross billings to buyers, net of allowances for the amounts the Company is responsible to collect. The Company's accounts payable related to amounts due to sellers are recorded at the net amount payable to sellers (see Note 10). Accordingly, both accounts receivable and accounts payable appear large in relation to revenue reported on a net basis.

Accounts receivable are recorded at the invoiced amount, are unsecured, and do not bear interest. The allowance for doubtful accounts is reviewed quarterly, requires judgment, and is based on the best estimate of the amount of probable credit losses in existing accounts receivable. The Company reviews the status of the then-outstanding accounts receivable on a customer-by-customer basis, taking into consideration the aging schedule of receivables, its historical collection experience, current information regarding the client, subsequent collection history, and other relevant data, in establishing the allowance for doubtful accounts. Accounts receivable are presented net of an allowance for doubtful accounts of $20.4 million at December 31, 2023, and $1.1 million at December 31, 2022. Accounts receivable are written off against the allowance for doubtful accounts when the Company determines amounts are no longer collectible.

78

Table of Contents

The Company reviews the associated payable to sellers for recovery of buyer receivable allowance and write-offs; in some cases, the Company can reduce the payable to sellers. The reduction of seller payables related to recovery of uncollected buyer receivables is netted against allowance expense. The contra seller payables related to recoveries were $1.1 million and $0.6 million as of December 31, 2023 and December 31, 2022, respectively.

The following is a summary of activity in the allowance for doubtful accounts for the years ended December 31, 2023, 2022, and 2021, respectively:

Year Ended

(in thousands)

Allowance for doubtful accounts, beginning balance $ 1,092 $ 3,475 $ 2,360

Allowance for doubtful accounts, assumed from mergers or acquisitions — — 835

Increase (decrease) in provision for expected credit losses 20,115 (1,719) 597

Recoveries of previous write-offs 12 87 20

During the years ended December 31, 2023, 2022, and 2021, the provision for expected credit losses associated with accounts receivable and the offset by increases of contra seller payables related to recoveries of uncollected buyer receivables resulted in a net amount of bad debt each year. During the year ended December 31, 2023, the increase in the provision for expected credit losses associated with accounts receivable of $20.1 million was offset by increases of contra seller payables related to recoveries of uncollected buyer receivables of $15.4 million, which resulted in an $4.7 million amount of bad debt expense. The increase in the provision for expected credit losses was primarily attributed to one buyer filing for bankruptcy, resulting in $4.2 million of bad debt expense during the year ended December 31, 2023. During the year ended December 31, 2022, the decrease in the provision for expected credit losses associated with accounts receivable of $1.7 million was offset by decreases of contra seller payables related to recoveries of uncollected buyer receivables of $1.6 million, which resulted in an $0.2 million amount of bad debt recoveries. During the year ended December 31, 2021, the provision for expected credit losses associated with accounts receivable of $0.6 million was offset by increases of contra seller payables related to recoveries of uncollected buyer receivables of $0.5 million, which resulted in an immaterial amount of bad debt expense.

Note 5—Fair Value Measurements

Recurring Fair Value Measurements

Fair value represents the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Observable inputs are based on market data obtained from independent sources. The fair value hierarchy is based on the following three levels of inputs, of which the first two are considered observable and the last one is considered unobservable:

•Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

•Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.

•Level 3 – Unobservable inputs.

The table below sets forth a summary of financial instruments that are measured at fair value on a recurring basis at December 31, 2023:

(in thousands)

79

Table of Contents

The table below sets forth a summary of financial instruments that are measured at fair value on a recurring basis at December 31, 2022:

(in thousands)

At December 31, 2023 and 2022, cash equivalents of $281.2 million and $259.6 million, respectively, consisted of money market funds and commercial paper, with original maturities of three months or less. The carrying amounts of cash equivalents are classified as Level 1 or Level 2 depending on whether or not their fair values are based on quoted market prices for identical securities that are traded in an active market.

At December 31, 2023 and 2022, the Company had Convertible Senior Notes and its Term Loan B Facility (as defined in Note 17) included in its balance sheets. The estimated fair value of the Company's Convertible Senior Notes was $174.3 million and $305.0 million, as of December 31, 2023 and 2022, respectively. The estimated fair value of Convertible Senior Notes is based on market rates and the closing trading price of the Convertible Senior Notes as of December 31, 2023 and 2022 and is classified as Level 2 in the fair value hierarchy. At December 31, 2023 and 2022, the estimated fair value of the Company's Term Loan B Facility was $352.3 million and $333.3 million, respectively. The estimated fair value is based on borrowing rates currently available to the Company for financing with similar terms and is classified as Level 2 in the fair value hierarchy.

There were no transfers between Level 1 and Level 2 fair value measurements during the years ended December 31, 2023 and 2022.

Note 6—Property and Equipment

Major classes of property and equipment were as follows:

(in thousands)

Furniture, fixtures and office equipment 4,031 3,659

Depreciation expense on property and equipment totaled $24.0 million, $19.0 million, and $16.1 million for the years ended December 31, 2023, 2022, and 2021, respectively. There was impairment changes to property and equipment related to restructuring activities of $0.5 million for the year ended December 31, 2023 and there were no impairment charges to property and equipment for the years ended December 31, 2022 and 2021.

The Company's property and equipment, net by geographical region was as follows:

(in thousands)

80

Table of Contents

Source: SEC EDGAR (public domain) · 10-K for the period ended 2023-12-31, filed 2024-02-28 · accession 0001595974-24-000014

Filing HTML rendered to line-structured narrative text by the shipped reducer (datafeeds.edgar_fulltext.visible_text, keep_table_headers=True): scripts and inline-XBRL headers are dropped, and table content is reduced to its short label cells — numeric table data is not rendered and is therefore not counted. The same rendering is used for every year, so a year-over-year comparison is like for like.

The text is our rendering of the filing, not a facsimile: original pagination, typography and tables are not reproduced, and the numbers live in the financial statements (FA).

The outline locates item HEADINGS in this document. Only Items 1A and 7 have certified boundaries elsewhere in the terminal (the redline and the narrative-overlap number); every span here runs from one heading found to the next heading found.

How the outline was chosen. It is the longest chain of item headings that runs forward through both the document and the standard item order: 23 headings are on that chain and 17 further heading-shaped lines are not — the table-of-contents echo of every item, cross-references and exhibit-list mentions. Each entry's length is measured from its heading to the next heading on the chain.