Biggest changeResults of Operations The following sets forth, as a percentage of revenue, consolidated statements of income data for the years indicated: 2024 2023 2022 Revenue 100.0 % 100.0 % 100.0 % Costs and operating expenses: Cost of revenue (exclusive of amortization of acquired intangible assets shown below) 40.6 39.6 38.3 Research and development 11.8 10.7 10.8 Sales and marketing 14.0 14.0 13.9 General and administrative 15.6 15.8 16.2 Amortization of acquired intangible assets 2.3 1.8 1.8 Restructuring charge 2.4 1.5 0.4 Total costs and operating expenses 86.7 83.4 81.4 Income from operations 13.4 16.6 18.6 Interest and marketable securities income, net 2.5 1.2 0.1 Interest expense (0.7) (0.5) (0.3) Other expense, net (0.5) (0.3) (0.3) Income before provision for income taxes 14.7 17.0 18.1 Provision for income taxes (2.1) (2.8) (3.5) Gain (loss) from equity method investment — — (0.2) Net income 12.7 % 14.2 % 14.4 % Revenue Revenue by solution category during the periods presented was as follows (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2024 2023 % Change % Change at Constant Currency 2023 2022 % Change % Change at Constant Currency Security $ 2,042,661 $ 1,765,267 15.7 % 16.4 % $ 1,765,267 $ 1,541,941 14.5 % 14.7 % Delivery 1,318,131 1,542,434 (14.5) (14.0) 1,542,434 1,669,257 (7.6) (7.1) Compute 630,376 504,219 25.0 25.4 504,219 405,456 24.4 24.7 Total revenue $ 3,991,168 $ 3,811,920 4.7 % 5.3 % $ 3,811,920 $ 3,616,654 5.4 % 5.8 % The increases in our revenue in 2024 as compared to 2023, and 2023 as compared to 2022, was primarily the result of continued growth in sales of our security and compute solutions and the acquisition of Linode in March 2022 which contributed to the growth in our compute solutions.
Biggest changeResults of Operations The following sets forth, as a percentage of revenue, consolidated statements of income data for the years indicated: 2025 2024 2023 Revenue 100 % 100 % 100 % Costs and operating expenses: Cost of revenue (exclusive of amortization of acquired intangible assets shown below) 41 41 40 Research and development 12 12 11 Sales and marketing 14 14 14 General and administrative 16 16 16 Amortization of acquired intangible assets 3 2 2 Restructuring charge 1 2 1 Total costs and operating expenses (1) 87 87 83 Income from operations (1) 13 13 17 Interest and marketable securities income, net 2 3 1 Interest expense (1) (1) — Other expense, net — — — Income before provision for income taxes (1) 14 15 17 Provision for income taxes (4) (2) (3) Gain from equity method investment — — — Net income (1) 11 % 13 % 14 % (1) Amounts may not foot due to rounding.
Because we publicly report in U.S. dollars, our reported revenue results are negatively impacted when the dollar strengthens and benefit when the dollar weakens. • We have experienced variations in certain types of revenue from quarter-to-quarter.
Because we publicly report in U.S. dollars, our reported revenue results are negatively impacted when the U.S. dollar strengthens and benefit when the U.S. dollar weakens. • We have experienced variations in certain types of revenue from quarter-to-quarter.
We also acquired Neosec, Inc ("Neosec") in May 2023, which is intended to complement our application and API security portfolio by extending its visibility into the rapidly growing API threat landscape, and StorageOS, Inc. ("StorageOS"), also known as Ondat, in March 2023, which is intended to strengthen our compute offerings.
We also acquired Neosec in May 2023, which is intended to complement our application and API security portfolio by extending its visibility into the rapidly growing API threat landscape, and StorageOS, Inc. ("StorageOS"), also known as Ondat, in March 2023, which is intended to strengthen our compute offerings.
The increase to interest and marketable securities income, net for 2024 as compared to 2023, and 2023 as compared to 2022, was the result of increased cash, cash equivalents and marketable securities balances received from our August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029 and higher interest rates, as well as increased gains associated with the non-qualified deferred compensation plan.
The increase to interest and marketable securities income, net for 2024 as compared to 2023, was the result of increased cash, cash equivalents and marketable securities balances received from our August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029 and higher interest rates, as well as increased gains associated with the non-qualified deferred compensation plan.
During these periods, our average stock price was in excess of $95.10, which is the initial conversion price of our convertible senior notes due in 2025. See further definition below. (2) Amounts may not foot due to rounding. Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by weighted average diluted common shares outstanding.
During these periods, our average stock price was in excess of $95.10, which is the initial conversion price of our convertible senior notes which matured in May 2025. See further definition below. (2) Amounts may not foot due to rounding. Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by weighted average diluted common shares outstanding.
Our investment policy is designed to limit the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.
Our investment policy is also designed to limit the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.
As of December 31, 2024, our cash, cash equivalents and marketable securities, which are detailed in Note 3 to the consolidated financial statements included elsewhere in this annual report on Form 10-K, totaled $1.9 billion. We place our cash investments in instruments that meet high-quality credit standards, as specified in our investment policy.
As of December 31, 2025, our cash, cash equivalents and marketable securities, which are detailed in Note 3 to the consolidated financial statements included elsewhere in this annual report on Form 10-K, totaled $1.9 billion. We place our cash investments in instruments that meet high-quality credit standards, as specified in our investment policy.
In May 2024, our board of directors authorized a new $2.0 billion share repurchase program, effective May 2024 through June 2027, which was in addition to amounts remaining under the January 2022 program. As of December 31, 2024, the January 2022 $1.8 billion program was fully utilized and $2.0 billion remains available for repurchase on the May 2024 program.
In May 2024, our board of directors authorized a new $2.0 billion share repurchase program, effective May 2024 through June 2027, which was in addition to amounts remaining under the January 2022 program. As of December 31, 2025, the January 2022 program was fully utilized and $1.2 billion remains available for repurchase on the May 2024 program.
The restructuring charge in 2023 was primarily driven by our FlexBase program as we exited certain facilities that were no longer needed, resulting in impairments of right-of-use-assets and leasehold improvements. We do not expect to incur material additional charges related to the FlexBase program.
We do not expect to incur material additional charges related to this action. The restructuring charge in 2023 was primarily driven by our FlexBase program as we exited certain facilities that were no longer needed, resulting in impairments of right-of-use-assets and leasehold improvements. We do not expect to incur material additional charges related to the FlexBase program.
See Note 13 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during 2024 and 2023 was determined to be immaterial.
See Note 13 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during 2025 and 2024 was determined to be immaterial.
We have assigned the entire balance of goodwill to our one reporting unit. The fair value of the reporting unit was based on our market capitalization as of each of December 31, 2024 and 2023, and it was substantially in excess of the carrying value of the reporting unit at each date.
We have assigned the entire balance of goodwill to our one reporting unit. The fair value of the reporting unit was based on our market capitalization as of each of December 31, 2025 and 2024, and it was substantially in excess of the carrying value of the reporting unit at each date.
Significant Accounting Policies and Estimates See Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for information regarding recent and newly adopted accounting pronouncements. Application of Critical Accounting Policies and Estimates Overview Our MD&A is based upon our consolidated financial statements, which have been prepared in accordance with GAAP.
Significant Accounting Policies and Estimates See Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for information regarding recent and newly adopted accounting pronouncements. 45 Table of Contents Application of Critical Accounting Policies and Estimates Overview Our MD&A is based upon our consolidated financial statements, which have been prepared in accordance with GAAP.
This acquisition is intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them. We also acquired Noname Gate Ltd. ("Noname Security") in June 2024.
This acquisition is intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them. We also acquired Noname Security in June 2024.
We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to them are not representative of our core business operations. • Gains and losses from equity method investment – We record income or losses on our share of earnings and losses from our equity method investment, and any gains from returns of investments or impairments.
We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to them are not representative of our core business operations. 39 Table of Contents • Gains and losses from equity method investment – We record income or losses on our share of earnings and losses from our equity method investment, and any gains from returns of investments or impairments.
Revenue We primarily derive revenue from the sale of services to customers pursuant to contracts having terms of one year or longer, which allows us to have a consistent and predictable base level of revenue. Services included in our contracts consist of security solutions, the delivery of content, applications and software over the internet, compute solutions and professional services.
Revenue We primarily derive revenue from the sale of services to customers pursuant to contracts having terms of one year or longer, which allows us to have a consistent and predictable base level of revenue. Services included in our contracts consist of security solutions, the delivery of content, applications and software over the internet, cloud computing solutions and professional services.
The increase to interest expense for 2024 as compared to 2023, and 2023 as compared to 2022, was primarily due to the August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029.
The increase to interest expense for 2024 as compared to 2023 was primarily due to the August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029.
These minimum commitments may vary from period to period depending on the timing and length of contract renewals with our vendors, and on our plans for network expansion, including our expansion plans related to our compute business.
These minimum commitments may vary from period to period depending on the timing and length of contract renewals with our vendors, and on our plans for network expansion, including our expansion plans related to our compute locations.
Management also believes that these non-GAAP financial measures enable investors to evaluate our operating results and future prospects in the same manner as management. These non-GAAP financial measures may exclude expenses and gains that may be unusual in nature, infrequent or not reflective of our ongoing operating results.
Management also believes that these non-GAAP financial measures enable investors to evaluate our operating results and future prospects in the same manner as management. These non-GAAP 38 Table of Contents financial measures may exclude expenses and gains that may be unusual in nature, infrequent or not reflective of our ongoing operating results.
Acquired intangible assets, other than goodwill, are amortized over their estimated useful lives based upon the estimated economic value derived from the related intangible assets. Income Taxes Our provision for income taxes is comprised of a current and a deferred portion.
Acquired intangible assets, other than goodwill, are amortized over their estimated useful lives based upon the estimated 47 Table of Contents economic value derived from the related intangible assets. Income Taxes Our provision for income taxes is comprised of a current and a deferred portion.
These programs were designed to better align employee incentives with the interests of our stockholders, which increased our stock-based compensation. • Depreciation expense related to our network equipment also contributes to our overall expense levels.
These programs are designed to better align employee incentives with the interests of our stockholders, which has increased our stock-based compensation. • Depreciation expense related to our network equipment also contributes to our overall expense levels.
We periodically assess whether triggering events are present to review internal-use software for impairment. Changes in our estimates related to internal-use software would increase or decrease operating expenses or amortization recorded during the period.
We periodically assess whether triggering events are present to review internal-use software for impairment. Changes in our estimates related to internal-use software would increase or decrease operating expenses or amortization recorded during the period. 48 Table of Contents
With respect to the convertible senior notes due in each of 2029, 2027 and 2025, unless our weighted average stock price is greater than $126.31, $116.18 and $95.10, respectively, the initial conversion prices, there will be no difference between GAAP and non-GAAP diluted weighted average common shares outstanding.
With respect to the convertible senior notes due in each of 2033, 2029 and 2027, and those that matured in 2025, unless our weighted average stock price is greater than $93.01, $126.31, $116.18 and $95.10, respectively, the initial conversion prices, there will be no difference between GAAP and non-GAAP diluted weighted average common shares outstanding.
As of December 31, 2024, we had cash and cash equivalents of $300.3 million held in accounts outside the U.S. The U.S. Tax Cuts and Jobs Act establishes a territorial tax system in the U.S., which provides companies with the potential ability to repatriate earnings with minimal U.S. federal income tax impact.
As of December 31, 2025, we had cash and cash equivalents of $382.7 million held in accounts outside the U.S. The U.S. Tax Cuts and Jobs Act establishes a territorial tax system in the U.S., which provides companies with the potential ability to repatriate earnings with minimal U.S. federal income tax impact.
The restructuring charge included severance and related expenses for certain headcount reductions, as well as impairments of acquired intangible assets and capitalized internal-use software. We do not expect to incur material additional charges related to these actions.
The charge included severance and related expenses for certain headcount reductions, as well as impairments of acquired intangible assets and capitalized internal-use software. We do not expect to incur material additional charges related to this action.
GO-NET intended to operate a blockchain-based online payment network. However, GO-NET operations were suspended in February 2022, and ultimately liquidated in August 2023. The gain from equity method investment in 2023 was related to the liquidation and disbursement of our portion of GO-NET's remaining assets, which were previously impaired.
GO-NET intended to operate a blockchain-based online payment network. However, GO-NET operations were suspended in February 2022, and ultimately liquidated in August 2023. The gain from equity method investment in 2023 was related to the liquidation and disbursement of our portion of GO-NET's remaining assets, which were previously impaired. We do not expect additional activity related to this investment.
Overview We develop and provide solutions for global enterprises to build, secure and accelerate their applications and digital experiences through our massively distributed global network, which underpins our security, delivery and compute solutions, and is central to our financial success.
Overview We develop and provide solutions for global enterprises to build, secure and accelerate their applications and digital experiences through our massively distributed global infrastructure, which underpins our security, delivery and cloud computing solutions, and is central to our financial success.
The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and is unique to each 36 Table of Content s acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results. • Stock-based compensation and amortization of capitalized stock-based compensation – Stock-based compensation is an important aspect of the compensation paid to our employees, which includes long-term incentive plans to encourage retention, performance-based plans to encourage achievement of specified financial targets and also short-term incentive awards with a one year vest.
The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and is unique to each acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results. • Stock-based compensation and amortization of capitalized stock-based compensation – Stock-based compensation is an important aspect of the compensation paid to our employees which includes long-term incentive plans to encourage retention, performance-based plans to encourage achievement of specified financial targets, short-term incentive awards with a one year vest and shares issued as part of a retirement savings program.
Other expense, net for 2024 and 2022 also includes impairments of $5.1 million and $8.9 million, respectively, from cost method investments. Other expense, net may fluctuate in the future based on changes in foreign currency exchange rates or other events.
Other expense, net for 2025 and 2024 also includes a net gain of $9.4 million and impairments of $5.1 million, respectively, from cost method investments. Other expense, net may fluctuate in the future based on changes in foreign currency exchange rates or other events.
We, and the industry more broadly, are seeing growth at a slower pace than we have experienced in the past. In particular, we are seeing traffic growth slowing in verticals such as media and gaming, as these customers optimize their traffic and manage through underlying business challenges at a time of global economic and geopolitical headwinds.
We, and the industry more broadly, are seeing growth at a slower pace than we have experienced in the past. In particular, customers in verticals such as media and gaming have optimized their traffic to manage through underlying business challenges at a time of global macroeconomic and geopolitical headwinds.
The terms of the revolving credit agreements are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K. In January 2025, we entered into a $150.0 million uncommitted revolving credit agreement ("2025 Credit Agreement").
The terms of the notes and hedge and warrant transactions are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K. Revolving Credit Facilities In January 2025, we entered into a $150.0 million uncommitted revolving credit agreement ("2025 Credit Agreement").
The increase in cost of revenue for 2024 as compared to 2023 was partially offset by lower network build-out and supporting services due to a decrease in third-party cloud costs as we have been migrating third-party cloud services onto our own compute platform and working to optimize third-party cloud spending.
The increase in cost of revenue for 2024 as compared to 2023 was partially offset by lower network build-out and supporting services due to a decrease in third-party cloud costs as we have migrated third-party cloud services onto our own compute platform and have focused on optimizing third-party cloud spending.
We have selected the Black-Scholes option pricing model to determine the fair value of stock option awards and the Monte Carlo simulation model to determine the fair value of market-based restricted stock unit awards.
We have selected the Black-Scholes option pricing model to determine the fair value of stock awards issued under our 1999 Employee Stock Purchase Plan and the Monte Carlo simulation model to determine the fair value of market-based restricted stock unit awards.
This increase was partially offset by an increase in repurchases of our common stock. In October 2021, our board of directors authorized a $1.8 billion share repurchase program that was effective from January 2022 through December 2024.
These increases were partially offset by a reduction in repurchases of our common stock as part of our share repurchase program. In October 2021, our board of directors authorized a $1.8 billion share repurchase program that was effective from January 2022 through December 2024.
Revenue derived in the U.S. and internationally during the periods presented is as follows (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2024 2023 % Change % Change at Constant Currency 2023 2022 % Change % Change at Constant Currency U.S. $ 2,075,533 $ 1,968,779 5.4 % 5.4 % $ 1,968,779 $ 1,902,051 3.5 % 3.5 % As a percentage of revenue 52.0 % 51.6 % 51.6 % 52.6 % International 1,915,635 1,843,141 3.9 5.2 1,843,141 1,714,603 7.5 % 8.3 As a percentage of revenue 48.0 % 48.4 % 48.4 % 47.4 % Total revenue $ 3,991,168 $ 3,811,920 4.7 % 5.3 % $ 3,811,920 $ 3,616,654 5.4 % 5.8 % For each of the years ended December 31, 2024, 2023 and 2022, no single country outside of the U.S. accounted for 10% or more of revenue.
Revenue derived in the U.S. and internationally during the periods presented is as follows (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2025 2024 % Change % Change at Constant Currency 2024 2023 % Change % Change at Constant Currency U.S. $ 2,139,173 $ 2,075,533 3 % 3 % $ 2,075,533 $ 1,968,779 5 % 5 % As a percentage of revenue 51 % 52 % 52 % 52 % International 2,069,002 1,915,635 8 7 1,915,635 1,843,141 4 % 5 As a percentage of revenue 49 % 48 % 48 % 48 % Total revenue $ 4,208,175 $ 3,991,168 5 % 5 % $ 3,991,168 $ 3,811,920 5 % 5 % For each of the years ended December 31, 2025, 2024 and 2023, no single country outside of the U.S. accounted for 10% or more of revenue.
To the extent these macroeconomic conditions continue, we expect that it may adversely affect our business, operations and financial results.
To the extent these macroeconomic conditions continue, the impact may adversely affect our business, operations and financial results.
The key factors that influence our financial success are our ability to build on recurring revenue commitments, increase traffic on our network, continue to develop, scale and successfully bring to market our compute platform and compute-to-edge solutions that meet the needs of professional users and enterprises, including with respect to reliability, effectively manage the prices we charge for our solutions, develop new products and appropriately manage our capital spending and other expenses.
The key factors that influence our financial success are our ability to build on recurring revenue commitments across our security, delivery and cloud computing product portfolios, increase traffic on our network, continue to develop, scale and successfully bring to market our compute platform, including AIC and compute-to-edge solutions, that meet the needs of professional users and enterprises, including with respect to reliability, effectively manage the prices we charge for our solutions considering the market dynamics on our cost structure driven by hyperscalers, continuously develop new and existing products and appropriately manage our capital spending and other operational expenses.
Diluted weighted average common shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuance of $1,265 million of convertible senior notes due 2029 and the issuances of $1,150 million of convertible senior notes due 2027 and 2025, respectively.
Diluted weighted average common shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuances of our convertible senior notes.
We believe our strong balance sheet and cash position are important competitive differentiators that provide the financial stability and flexibility to 40 Table of Content s enable us to continue to make investments at opportune times. We expect to continue to evaluate strategic investments to strengthen our business.
We believe our strong balance sheet, cash position and access to funds available under our revolving credit facilities are important competitive 42 Table of Contents differentiators that provide the financial stability and flexibility to enable us to continue to make investments at opportune times. We expect to continue to evaluate strategic investments to strengthen our business.
During 2024, 2023 and 2022, we repurchased 5.6 million, 7.8 million and 6.4 million shares of our common stock, respectively, at an average price per share of $99.14, $83.83 and $94.96, respectively.
During 2025, 2024 and 2023, we repurchased 10.0 million, 5.6 million and 7.8 million shares of our common stock, respectively, at an average price per share of $79.77, $99.14 and $83.83, respectively.
We continue to take steps upon contract renewals to sign customers to multi-year contracts and to optimize how we charge certain high-volume traffic customers to maintain alignment between customer traffic volumes and unit pricing. • Revenue from our international operations continues to grow, particularly from new customer acquisition and cross-selling of incremental solutions.
We continue to take steps upon contract renewals to sign customers to multi-year contracts and to optimize how we charge customers to maintain alignment between customer traffic volumes, significant cost increases we have experienced due to market dynamics driven by hyperscalers and unit pricing. • Revenue from our international operations continues to grow, particularly from new customer acquisition and cross-selling of incremental solutions.
Our foreseeable cash needs, in addition to our recurring operating costs, include our expected capital expenditures, investments in information technology, potential strategic acquisitions, anticipated share repurchases, lease and purchase commitments, settlements of other liabilities and repayment of our $1,150.0 million convertible senior notes due May 2025.
Our foreseeable cash needs, in addition to our recurring operating costs, include our expected capital expenditures, investments in information technology, potential strategic acquisitions, anticipated share repurchases, lease and purchase commitments and settlements of other liabilities.
Amortization of Acquired Intangible Assets For the Years Ended December 31, For the Years Ended December 31, (in thousands) 2024 2023 % Change 2023 2022 % Change Amortization of acquired intangible assets $ 92,081 $ 66,751 37.9 % $ 66,751 $ 64,983 2.7 % As a percentage of revenue 2.3 % 1.8 % 1.8 % 1.8 % The increase in amortization of acquired intangible assets for 2024 as compared to 2023, and 2023 as compared to 2022, was the result of amortization of acquired intangible assets related to our recent acquisitions.
Amortization of Acquired Intangible Assets For the Years Ended December 31, For the Years Ended December 31, (in thousands) 2025 2024 % Change 2024 2023 % Change Amortization of acquired intangible assets $ 111,066 $ 92,081 21 % $ 92,081 $ 66,751 38 % As a percentage of revenue 3 % 2 % 2 % 2 % The increase in amortization of acquired intangible assets for 2025 as compared to 2024, and 2024 as compared to 2023, was the result of amortization of acquired intangible assets related to our recent acquisitions.
We assess collectability based upon a review of customer receivables from prior sales with collection issues where we no longer believe that the customer has the ability to pay for services previously provided. We also perform ongoing credit evaluations of our customers.
In addition, the allowance for current expected credit losses considers outstanding balances on a customer-specific, account-by-account basis. We assess collectability based upon a review of customer receivables from prior sales with collection issues where we no longer believe that the customer has the ability to pay for services previously provided. We also perform ongoing credit evaluations of our customers.
We have observed the following trends related to our revenue in recent years: • Increased sales of our security solutions, led by application security solutions and segmentation solutions from our acquisition of Guardicore Ltd., and increased sales of our compute solutions, attributable to our acquisition of Linode Limited Liability Company ("Linode") and enhanced services on our compute platform, have made a significant contribution to revenue growth.
We have observed the following trends related to our revenue in recent years: • Increased sales of our security solutions, led by application security solutions and our microsegmentation solutions, and increased sales of our cloud computing solutions, attributable to enhanced services on our compute platform, and growth in our Cloud Infrastructure Services, have made a significant contribution to revenue growth.
Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue. 39 Table of Content s The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the years ended December 31, 2024, 2023 and 2022 (in thousands): 2024 2023 2022 Net income $ 504,918 $ 547,629 $ 523,672 Amortization of acquired intangible assets 92,081 66,751 64,983 Stock-based compensation 393,378 328,467 217,185 Amortization of capitalized stock-based compensation and capitalized interest expense 42,910 32,981 31,768 Restructuring charge 95,441 56,643 13,529 Acquisition-related costs 7,502 13,345 29,049 Legal settlements 2,500 — — Interest and marketable securities income, net (100,280) (45,194) (3,258) Interest expense 27,117 17,709 11,096 Provision for income taxes 82,095 106,373 126,696 Depreciation and amortization 514,455 472,035 496,909 Loss (gain) on cost method investments 5,066 (311) 8,260 (Gain) loss from equity method investment — (1,475) 7,635 Other expense, net 14,495 12,607 2,173 Adjusted EBITDA $ 1,681,678 $ 1,607,560 $ 1,529,697 Net income margin 12.7 % 14.4 % 14.5 % Adjusted EBITDA margin 42.1 % 42.2 % 42.3 % Impact of Foreign Currency Exchange Rates Revenue and earnings from our international operations have historically been an important contributor to our financial results.
Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue. 41 Table of Contents The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the years ended December 31, 2025, 2024 and 2023 (in thousands): 2025 2024 2023 Net income $ 452,031 $ 504,918 $ 547,629 Amortization of acquired intangible assets 111,066 92,081 66,751 Stock-based compensation 459,402 393,378 328,467 Amortization of capitalized stock-based compensation and capitalized interest expense 50,890 42,910 32,981 Restructuring charge 58,051 95,441 56,643 Acquisition-related costs 3,247 7,502 13,345 Legal settlements 4,000 2,500 — Interest and marketable securities income, net (70,808) (100,280) (45,194) Interest expense 30,759 27,117 17,709 Provision for income taxes 150,374 82,095 106,373 Depreciation and amortization 548,012 514,455 472,035 (Gain) loss on cost method investments, net (9,370) 5,066 (311) Gain from equity method investment — — (1,475) Other expense, net 13,958 14,495 12,607 Adjusted EBITDA $ 1,801,612 $ 1,681,678 $ 1,607,560 Net income margin 11 % 13 % 14 % Adjusted EBITDA margin 43 % 42 % 42 % Impact of Foreign Currency Exchange Rates Revenue and earnings from our international operations have historically been an important contributor to our financial results.
(Gain) Loss from Equity Method Investment For the Years Ended December 31, For the Years Ended December 31, (in thousands) 2024 2023 % Change 2023 2022 % Change (Gain) loss from equity method investment $ — $ (1,475) 100.0 % $ (1,475) $ 7,635 (119.3) % As a percentage of revenue — % — % — % 0.2 % The amounts reflected in (gain) loss from equity method investment relate to our investment with MUFG in a joint venture, GO-NET.
Gain from Equity Method Investment For the Years Ended December 31, For the Years Ended December 31, (in thousands) 2025 2024 % Change 2024 2023 % Change Gain from equity method investment $ — $ — — % $ — $ (1,475) 100 % As a percentage of revenue — % — % — % — % The gain from equity method investment relates to our investment with MUFG in a joint venture, GO-NET.
The issuance costs of the convertible senior notes are amortized to interest expense and are excluded from our non-GAAP results because management believes the non-cash amortization expense is not representative of ongoing operating performance. • Gains and losses on cost method investments – We have recorded gains and losses from the disposition, changes to fair value and impairment of cost method investments.
In addition, these charges do not necessarily provide meaningful insight into the fundamentals of current or past operations of our business. • Amortization of debt issuance costs and capitalized interest expense – The issuance costs of our convertible senior notes are amortized to interest expense and are excluded from our non-GAAP results because management believes the non-cash amortization expense is not representative of ongoing operating performance. • Gains and losses on cost method investments – We have recorded gains and losses from the disposition, changes to fair value and impairment of cost method investments.
We, along with our customers, continue to manage through an uncertain period of fluctuating inflation, regulations that may negatively impact business, economic and political uncertainty, uncertain energy supplies, heightened geopolitical tensions and conflict, potential for supply chain disruptions, changes in U.S. and international tax laws, changes in tariffs, fluctuations in foreign exchange rates and elevated interest rates.
We, along with our customers, continue to manage through an uncertain period of fluctuating inflation, regulatory policies and resources that may negatively impact business, economic and political uncertainty, decreased consumer confidence and pressure on prices during contract renewals, uncertain energy supplies, heightened geopolitical tensions and conflict, potential for supply chain disruptions, changes in legislation and regulations, including U.S. and international tax laws, volatility and increasing tensions related to changing trade policies, including announced or expected tariffs, fluctuations in foreign exchange rates and elevated interest rates.
Our management periodically weighs the positive and negative evidence to determine if it is more-likely-than-not that some or all of the deferred tax assets will be realized.
We currently have net deferred tax assets, comprised of net operating loss ("NOL") carryforwards, tax credit carryforwards and deductible temporary differences. Our management periodically weighs the positive and negative evidence to determine if it is more-likely-than-not that some or all of the deferred tax assets will be realized.
Additionally, cash used in investing activities in 2023 included an increase in purchases of marketable securities with the proceeds from our August 2023 issuance of convertible senior notes. These decreases were partially offset by cash paid for the acquisition of Noname Security.
Additionally, cash used in investing activities in 2023 included an increase in purchases of marketable securities with the proceeds from our August 2023 issuance of convertible senior notes.
It is important to the success of operations that we offer competitive compensation packages. However, we are focused on remaining disciplined in allocating our resources to support our faster growing security and compute solutions, including maintaining operational efficiencies to mitigate the rising cost of talent.
However, we are focused on remaining disciplined in allocating our resources to support our faster growing security and cloud computing solutions, including maintaining operational efficiencies to mitigate the rising cost of talent.
We believe that applying the non-GAAP adjustments and their related income tax effect allows us to highlight income attributable to our core operations. 37 Table of Content s The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the years ended December 31, 2024, 2023 and 2022 (in thousands): 2024 2023 2022 Income from operations $ 533,411 $ 637,338 $ 676,274 Amortization of acquired intangible assets 92,081 66,751 64,983 Stock-based compensation 393,378 328,467 217,185 Amortization of capitalized stock-based compensation and capitalized interest expense 42,910 32,981 31,768 Restructuring charge 95,441 56,643 13,529 Acquisition-related costs 7,502 13,345 29,049 Legal settlements 2,500 — — Non-GAAP income from operations $ 1,167,223 $ 1,135,525 $ 1,032,788 GAAP operating margin 13.4 % 16.7 % 18.7 % Non-GAAP operating margin 29.2 % 29.8 % 28.6 % The following table reconciles GAAP net income to non-GAAP net income for the years ended December 31, 2024, 2023 and 2022 (in thousands): 2024 2023 2022 Net income $ 504,918 $ 547,629 $ 523,672 Amortization of acquired intangible assets 92,081 66,751 64,983 Stock-based compensation 393,378 328,467 217,185 Amortization of capitalized stock-based compensation and capitalized interest expense 42,910 32,981 31,768 Restructuring charge 95,441 56,643 13,529 Acquisition-related costs 7,502 13,345 29,049 Legal settlements 2,500 — — Amortization of debt issuance costs 6,521 5,341 4,395 Loss (gain) on cost method investments 5,066 (311) 8,260 (Gain) loss from equity method investment — (1,475) 7,635 Income tax effect of above non-GAAP adjustments and certain discrete tax items (154,735) (89,364) (42,768) Non-GAAP net income $ 995,582 $ 960,007 $ 857,708 38 Table of Content s The following table reconciles GAAP net income per diluted share to non-GAAP net income per diluted share for the years ended December 31, 2024, 2023 and 2022 (in thousands, except per share data): 2024 2023 2022 GAAP net income per diluted share $ 3.27 $ 3.52 $ 3.26 Adjustments to net income: Amortization of acquired intangible assets 0.60 0.43 0.40 Stock-based compensation 2.55 2.11 1.35 Amortization of capitalized stock-based compensation and capitalized interest expense 0.28 0.21 0.20 Restructuring charge 0.62 0.36 0.08 Acquisition-related costs 0.05 0.09 0.18 Legal settlements 0.02 — — Amortization of debt issuance costs 0.04 0.03 0.03 Loss (gain) on cost method investments 0.03 — 0.05 (Gain) loss from equity method investment — (0.01) 0.05 Income tax effect of above non-GAAP adjustments and certain discrete tax items (1.00) (0.58) (0.27) Adjustment for shares (1) 0.03 0.02 0.02 Non-GAAP net income per diluted share (2) $ 6.48 $ 6.20 $ 5.37 Shares used in GAAP per diluted share calculations 154,346 155,397 160,467 Impact of benefit from note hedge transactions (1) (744) (574) (720) Shares used in non-GAAP per diluted share calculations (1) 153,602 154,823 159,747 (1) Shares used in non-GAAP per diluted share calculations have been adjusted for the periods presented for the benefit of our note hedge transactions.
The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the years ended December 31, 2025, 2024 and 2023 (in thousands): 2025 2024 2023 Income from operations $ 566,944 $ 533,411 $ 637,338 Amortization of acquired intangible assets 111,066 92,081 66,751 Stock-based compensation 459,402 393,378 328,467 Amortization of capitalized stock-based compensation and capitalized interest expense 50,890 42,910 32,981 Restructuring charge 58,051 95,441 56,643 Acquisition-related costs 3,247 7,502 13,345 Legal settlements 4,000 2,500 — Non-GAAP income from operations $ 1,253,600 $ 1,167,223 $ 1,135,525 GAAP operating margin 13 % 13 % 17 % Non-GAAP operating margin 30 % 29 % 30 % The following table reconciles GAAP net income to non-GAAP net income for the years ended December 31, 2025, 2024 and 2023 (in thousands): 2025 2024 2023 Net income $ 452,031 $ 504,918 $ 547,629 Amortization of acquired intangible assets 111,066 92,081 66,751 Stock-based compensation 459,402 393,378 328,467 Amortization of capitalized stock-based compensation and capitalized interest expense 50,890 42,910 32,981 Restructuring charge 58,051 95,441 56,643 Acquisition-related costs 3,247 7,502 13,345 Legal settlements 4,000 2,500 — Amortization of debt issuance costs 7,053 6,521 5,341 (Gain) loss on cost method investments, net (9,370) 5,066 (311) Gain from equity method investment — — (1,475) Income tax effect of above non-GAAP adjustments and certain discrete tax items (89,945) (154,735) (89,364) Non-GAAP net income $ 1,046,425 $ 995,582 $ 960,007 40 Table of Contents The following table reconciles GAAP net income per diluted share to non-GAAP net income per diluted share for the years ended December 31, 2025, 2024 and 2023 (in thousands, except per share data): 2025 2024 2023 GAAP net income per diluted share $ 3.07 $ 3.27 $ 3.52 Adjustments to net income: Amortization of acquired intangible assets 0.76 0.60 0.43 Stock-based compensation 3.12 2.55 2.11 Amortization of capitalized stock-based compensation and capitalized interest expense 0.35 0.28 0.21 Restructuring charge 0.39 0.62 0.36 Acquisition-related costs 0.02 0.05 0.09 Legal settlements 0.03 0.02 — Amortization of debt issuance costs 0.05 0.04 0.03 (Gain) loss on cost method investments, net (0.06) 0.03 — Gain from equity method investment — — (0.01) Income tax effect of above non-GAAP adjustments and certain discrete tax items (0.61) (1.00) (0.58) Adjustment for shares (1) — 0.03 0.02 Non-GAAP net income per diluted share (2) $ 7.12 $ 6.48 $ 6.20 Shares used in GAAP per diluted share calculations 147,023 154,346 155,397 Impact of benefit from note hedge transactions (1) — (744) (574) Shares used in non-GAAP per diluted share calculations (1) 147,023 153,602 154,823 (1) Shares used in non-GAAP per diluted share calculations have been adjusted for the years ended December 31, 2024 and 2023, for the benefit of our note hedge transactions.
Provision for Income Taxes For the Years Ended December 31, For the Years Ended December 31, (in thousands) 2024 2023 % Change 2023 2022 % Change Provision for income taxes $ 82,095 $ 106,373 (22.8) % $ 106,373 $ 126,696 (16.0) % As a percentage of revenue 2.1 % 2.8 % 2.8 % 3.5 % Effective income tax rate 14.0 % 16.3 % 16.3 % 19.3 % The decrease in the provision for income taxes for 2024 as compared to 2023 was mainly due to the benefit from an intercompany sale of intellectual property in 2024, an increase in the excess tax benefit related to stock-based compensation, lower profitability and an increase in the benefit of U.S. federal and state research and development credits.
Provision for Income Taxes For the Years Ended December 31, For the Years Ended December 31, (in thousands) 2025 2024 % Change 2024 2023 % Change Provision for income taxes $ 150,374 $ 82,095 83 % $ 82,095 $ 106,373 (23) % As a percentage of revenue 4 % 2 % 2 % 3 % Effective income tax rate 25 % 14 % 14 % 16 % The increase in the provision for income taxes for 2025 as compared to 2024 was mainly due to a shortfall in the tax benefit related to stock-based compensation, the benefit from an intercompany sale of intellectual property in 2024 that did not recur in 2025, revaluation of deferred tax assets and a decrease in the benefit of U.S. federal and state research and development credits.
These costs include maintenance and supporting services incurred as we continue to build out our compute platform and maintain our global network, and costs of third-party cloud providers used for some of our operations. We have seen these costs increase in recent years as a result of our network expansion, and particularly the build out of our compute platform.
These costs include maintenance and supporting services, as well as partner program costs, incurred as we continue to build out our compute platform and maintain our global network, and costs of third-party cloud providers used for some of our operations.
We will continue to effectively manage our network build-out and supporting service costs and continue to migrate third-party cloud services to our compute platform in an effort to manage costs. • Our employees are core to the operations of our business, and payroll and related costs, including stock-based compensation, is our largest expense.
We will need to continue to effectively manage our network build-out and supporting service costs in an effort to control costs. • Our employees are core to the operations of our business, and payroll and related costs, including stock-based compensation, is our largest expense. It is important to the success of our operations that we offer competitive compensation packages.
Our effective income tax rate may fluctuate between fiscal years and from quarter to quarter due to items arising from discrete events, such as tax benefits from the settlement of employee equity awards, tax law changes and settlements of tax audits and assessments.
These amounts were partially offset by non-deductible stock-based compensation and the tax on global intangible low-taxed income. Our effective income tax rate may fluctuate between fiscal years and from quarter to quarter due to items arising from discrete events, such as tax benefits from the settlement of employee equity awards, tax law changes and settlements of tax audits and assessments.
Although the enactment and effective legislation in many countries was applicable to us beginning on January 1, 2024, and increased our effective income tax rate, the increase did not have a material impact on our overall results of operations or cash flows. We will continue to monitor and evaluate the impacts of the developing legislation.
Although the enactment and effective legislation in many countries was applicable to us beginning on January 1, 2024, and increased our effective income tax rate, the increase did not have a material impact on our overall results of operations or cash flows. In July 2025, the One Big Beautiful Bill Act ("OBBBA") was enacted into law.
Additionally, the increase in stock-based compensation was a result of the timing of our performance-based equity award grants These increases were partially offset by a reduction in marketing programs and related costs as a result of the timing of events and advertising campaigns.
These increases were partially offset by a reduction in marketing programs and related costs as a result of the timing of events and advertising campaigns.
The increase in general and administrative expenses for 2023 as compared to 2022 was due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases, headcount growth, the increased expected achievement of our performance-based compensation plans and higher average equity awards to employees driven by the talent market and other expenses due to increased professional service fees to support our business.
The increase in general and administrative expenses for 2024 as compared to 2023 was primarily due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases and the shift in timing of our performance-based compensation. Additionally, other expenses increased due to professional service fees to support our business.
The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carryforwards by using expected tax rates in effect in the years during which the differences are expected to reverse or the carryforwards are expected to be realized. 45 Table of Content s We currently have net deferred tax assets, comprised of net operating loss ("NOL") carryforwards, tax credit carryforwards and deductible temporary differences.
The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carryforwards by using expected tax rates in effect in the years during which the differences are expected to reverse or the carryforwards are expected to be realized.
We acquired certain customer contracts from Lumen Technologies, Inc. ("Lumen") in October 2023 and from StackPath, LLC ("StackPath") in August 2023. These acquisitions are intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them.
These acquisitions are intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them.
For the years ended December 31, 2024, 2023 and 2022, we capitalized $99.6 million, $77.0 million and $30.0 million, respectively, of stock-based compensation. These capitalized internal-use software development costs are amortized to cost of revenue over their estimated useful lives, ranging from two to ten years based on the software developed and its expected useful life.
These capitalized internal-use software development costs are amortized to cost of revenue over their estimated useful lives, ranging from two to ten years based on the software developed and its expected useful life.
For equity classified awards, we measure the fair value of these awards at the grant date and recognize such fair value as expense over the vesting period. For liability classified awards, the fair value is determined each reporting period beginning at the grant date until final vesting.
For liability classified awards, the fair value is determined each reporting period beginning at the grant date until final vesting.
Based on acquired intangible assets as of December 31, 2024, future amortization is expected to be $111.5 million, $104.1 million, $89.2 million, $81.9 million and $76.0 million for the years ending December 31, 2025, 2026, 2027, 2028 and 2029, respectively.
Based on acquired intangible assets as of December 31, 2025, future amortization is expected to be $100.2 million, $85.6 million, $79.0 million, $74.0 million and $66.7 million for the years ending December 31, 2026, 2027, 2028, 2029 and 2030, respectively.
The increase in cash used in investing activities in 2023 as compared to 2022 was due to an increase in purchases of marketable securities with the proceeds from our August 2023 issuance of convertible senior notes and purchases of property and equipment related to our compute platform build-out.
The decrease in cash used in investing activities in 2024 as compared to 2023 was due to an increase in cash proceeds from net marketable securities activity to fund the acquisition of Noname Security in 2024 and a reduction of purchases of property and equipment related to our compute platform build-out.
As we continue to build out our new compute locations to provide us with the ability to scale our platform, we have entered into, and expect to continue to enter into, longer term leases that include certain financial commitments in order to achieve more favorable unit economics.
As we continue to build out our new compute locations to provide us with the ability to scale our platform, we have experienced a significant increase in our co-location costs due to the market dynamics driven by the hyperscalers. We have entered into, and expect to continue to enter into, longer term leases that include certain financial commitments.
Cash Used in Investing Activities For the Years Ended December 31, (in thousands) 2024 2023 2022 Cash paid for business acquisitions, net of cash acquired $ (434,066) $ (106,171) $ (872,091) Cash paid for asset acquisitions (132,835) (120,985) — Purchases of property and equipment and capitalization of internal-use software development costs (685,267) (730,040) (458,302) Net marketable securities activity 449,516 (884,973) 714,205 Other, net 3,973 (6,069) (6,122) Net cash used in investing activities $ (798,679) $ (1,848,238) $ (622,310) The decrease in cash used in investing activities in 2024 as compared to 2023 was due to an increase in cash proceeds from net marketable securities activity to fund the acquisition of Noname Security in 2024 and a reduction of purchases of property and equipment related to our compute platform build-out.
Cash Used in Investing Activities For the Years Ended December 31, (in thousands) 2025 2024 2023 Cash paid for business acquisitions, net of cash acquired $ (55,112) $ (434,066) $ (106,171) Cash paid for asset acquisitions (29,930) (132,835) (120,985) Purchases of property and equipment and capitalization of internal-use software development costs (819,500) (685,267) (730,040) Net marketable securities activity 369,093 449,516 (884,973) Other, net (5,294) 3,973 (6,069) Net cash used in investing activities $ (540,743) $ (798,679) $ (1,848,238) The decrease in cash used in investing activities in 2025 as compared to 2024 was due to: • the acquisitions of Noname Security and Edgio in 2024; and • a decrease in net marketable securities activity, primarily due to higher purchases compared to maturities and sales, which resulted from net proceeds from our convertible senior notes activities.
For the years ended December 31, 2023 and 2022, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development 35 Table of Content s credits.
These amounts were partially offset by non-deductible stock-based compensation and non-deductible transfer pricing. For the year ended December 31, 2023, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development credits.
If such an evaluation indicates that payment is no longer reasonably assured for services provided, any future services provided to that customer will result in the creation of a cash basis reserve until we receive consistent payments. 44 Table of Content s Valuation and Impairment of Marketable Securities We measure the fair value of our financial assets and liabilities at the end of each reporting period.
If such an evaluation indicates that payment is no longer reasonably assured for services provided, any future services provided to that customer will result in the creation of a cash basis reserve until we receive consistent payments.
The increase in compute solutions revenue in 2024 as compared to 2023, and 2023 as compared to 2022, was due to growth in sales of compute products, including cloud optimization solutions to new and existing customers and through the acquisition of Linode in the first quarter of 2022.
The increase in cloud computing revenue in 2024 as compared to 2023 was due to growth in sales of Cloud Infrastructure Services, as well as cloud optimization solutions, to new and existing customers.
Over the longer term, our ability to expand our product portfolio and to effectively manage the prices we charge for our solutions are key factors impacting our revenue growth.
Over the longer term, our ability to continually develop and expand our product portfolio, to successfully bring those products to market and to effectively manage the prices we charge for our solutions considering the market dynamics on our cost structure driven by hyperscalers, are key factors impacting our revenue growth.
Changes in foreign currency exchange rates negatively impacted our revenue by $22.5 million in 2024 as compared to 2023, and negatively impacted our revenue by $13.9 million in 2023 as compared to 2022. 30 Table of Content s Cost of Revenue Cost of revenue consisted of the following for the periods presented (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2024 2023 % Change 2023 2022 % Change Co-location fees $ 308,314 $ 256,062 20.4 % $ 256,062 $ 197,375 29.7 % Bandwidth fees 233,100 228,038 2.2 228,038 205,268 11.1 Network build-out and supporting services 193,607 215,557 (10.2) 215,557 195,669 10.2 Payroll and related costs 334,215 325,851 2.6 325,851 298,269 9.2 Acquisition-related costs — 3,190 (100.0) 3,190 4,982 (36.0) Stock-based compensation, including amortization of prior capitalized amounts 100,705 73,786 36.5 73,786 57,146 29.1 Depreciation of network equipment 282,106 231,500 21.9 231,500 259,359 (10.7) Amortization of internal-use software 168,746 177,079 (4.7) 177,079 165,751 6.8 Total cost of revenue $ 1,620,793 $ 1,511,063 7.3 % $ 1,511,063 $ 1,383,819 9.2 % As a percentage of revenue 40.6 % 39.6 % 39.6 % 38.3 % The increase in cost of revenue for 2024 as compared to 2023 was primarily due to: • co-location fees and depreciation of network equipment as a result of investment in our network, particularly as we are building out our compute platform to support future growth and scalability; and • payroll and related costs, including stock-based compensation as a result of headcount growth from our strategic initiatives and annual merit increases.
Changes in foreign currency exchange rates positively impacted our revenue by $13.7 million in 2025 as compared to 2024, and negatively impacted our revenue by $22.5 million in 2024 as compared to 2023. 32 Table of Contents Cost of Revenue Cost of revenue consisted of the following for the periods presented (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2025 2024 % Change 2024 2023 % Change Co-location costs $ 349,191 $ 308,314 13 % $ 308,314 $ 256,062 20 % Bandwidth fees 192,875 233,100 (17) 233,100 228,038 2 Network build-out and supporting services 236,644 193,607 22 193,607 215,557 (10) Payroll and related costs 340,991 334,215 2 334,215 325,851 3 Acquisition-related costs — — — — 3,190 (100) Stock-based compensation, including amortization of prior capitalized amounts 123,617 100,705 23 100,705 73,786 36 Depreciation of network equipment 328,221 282,106 16 282,106 231,500 22 Amortization of internal-use software 155,974 168,746 (8) 168,746 177,079 (5) Total cost of revenue $ 1,727,513 $ 1,620,793 7 % $ 1,620,793 $ 1,511,063 7 % As a percentage of revenue 41 % 41 % 41 % 40 % The increase in cost of revenue for 2025 as compared to 2024 was primarily due to: • co-location costs and depreciation of network equipment as a result of investment in our network, particularly as we build out our compute platform to support future growth and scalability; • network build-out and supporting services, particularly due to our partner program costs related to our cloud computing solutions; and • payroll and related costs, including stock-based compensation, as a result of headcount growth, annual merit increases and increased achievement of our performance-based compensation plans; additionally, stock-based compensation increased due to the shift in some of our compensation programs from cash-based to stock-based for certain employees, including our employer 401(k) match program, effective in 2025, which partially offset the increase in payroll and related costs.
For a complete description of our significant accounting policies, see Note 2 to our consolidated financial statements included elsewhere in this annual report on Form 10-K. 43 Table of Content s Definitions We define our critical accounting policies as those policies that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our consolidated financial statements.
Definitions We define our critical accounting policies as those policies that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our consolidated financial statements.
Research and Development Expenses Research and development expenses consisted of the following for the periods presented (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2024 2023 % Change 2023 2022 % Change Payroll and related costs $ 562,286 $ 494,803 13.6 % $ 494,803 $ 468,928 5.5 % Stock-based compensation 152,114 123,896 22.8 123,896 78,116 58.6 Capitalized salaries and related costs (272,320) (239,928) 13.5 (239,928) (183,540) 30.7 Acquisition-related costs — 721 (100.0) 721 2,832 (74.5) Other expenses 28,796 26,556 8.4 26,556 25,098 5.8 Total research and development $ 470,876 $ 406,048 16.0 % $ 406,048 $ 391,434 3.7 % As a percentage of revenue 11.8 % 10.7 % 10.7 % 10.8 % The increase in research and development expenses for 2024 as compared to 2023 was primarily due to higher payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives and annual merit increases.
Additionally, we expect network build-out and supporting services to increase due to our partner programs to support the growth of our cloud computing solutions. 33 Table of Contents Research and Development Expenses Research and development expenses consisted of the following for the periods presented (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2025 2024 % Change 2024 2023 % Change Payroll and related costs $ 601,288 $ 562,286 7 % $ 562,286 $ 494,803 14 % Stock-based compensation 169,404 152,114 11 152,114 123,896 23 Capitalized salaries and related costs (286,816) (272,320) 5 (272,320) (239,928) 14 Acquisition-related costs — — — — 721 (100) Other expenses 29,684 28,796 3 28,796 26,556 8 Total research and development $ 513,560 $ 470,876 9 % $ 470,876 $ 406,048 16 % As a percentage of revenue 12 % 12 % 12 % 11 % The increase in research and development expenses for 2025 as compared to 2024 was primarily due to higher payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives, annual merit increases and the increased achievement of our performance-based compensation plans.
Linode had approximately 250 employees when we completed the acquisition. 28 Table of Content s Global Economic Conditions Global macroeconomic and geopolitical conditions continue to impact our customers, as well as our business and revenue growth rates.
Additionally, of note, we added approximately 200 employees from the acquisition of Noname Security. 30 Table of Contents Global Economic Conditions Global macroeconomic and geopolitical conditions continue to impact our customers, as well as our business and revenue growth rates.
We will continue to effectively manage our bandwidth costs. 27 Table of Content s • Network build-out and supporting service costs represent another significant portion of our cost of revenue.
We will need to continue to focus on effectively managing our bandwidth costs to maintain or improve current levels of profitability. • Network build-out and supporting service costs represent another significant portion of our cost of revenue.
Estimates are used in determining our allowance for current expected credit losses using historical loss rates for the previous twelve months as well as expectations about the future where we have been able to develop forecasts to supports our estimates. In addition, the allowance for current expected credit losses considers outstanding balances on a customer-specific, account-by-account basis.
Increases and decreases in the allowance for current expected credit losses are included as a component of general and administrative expense in the consolidated statements of income. 46 Table of Contents Estimates are used in determining our allowance for current expected credit losses using historical loss rates for the previous twelve months as well as expectations about the future where we have been able to develop forecasts to supports our estimates.
Any borrowings are secured by collateral consisting primarily of available-for-sale debt securities in our investment portfolio. 42 Table of Content s Operating Leases We have entered into operating leases for real estate assets related to office space and co-location assets related to space or racks at co-location facilities and related equipment for our servers and other networking equipment.
Operating Leases We have entered into operating leases for real estate assets related to office space and co-location assets related to space or racks at co-location facilities and related equipment for our servers and other networking equipment.
Noname Security is intended to expand our existing API Security offering by providing more flexible deployment options, extensive vendor integrations and enhanced attack analysis. We believe this acquisition will accelerate our ability to meet increasing customer and market demand. As part of the acquisition, we integrated approximately 200 Noname Security employees primarily within sales and marketing and research and development.
Noname Security is intended to expand our existing API Security offering by providing more flexible deployment options, extensive vendor integrations and enhanced attack analysis. We believe this acquisition will accelerate our ability to meet increasing customer and market demand. We acquired certain customer contracts from Lumen Technologies, Inc. ("Lumen") in October 2023 and from StackPath, LLC ("StackPath") in August 2023.
General and Administrative Expenses General and administrative expenses consisted of the following for the periods presented (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2024 2023 % Change 2023 2022 % Change Payroll and related costs $ 225,687 $ 218,272 3.4 % $ 218,272 $ 213,772 2.1 % Stock-based compensation 102,494 94,316 8.7 94,316 62,926 49.9 Depreciation and amortization 66,184 65,817 0.6 65,817 74,225 (11.3) Facilities-related costs 86,671 90,061 (3.8) 90,061 103,473 (13.0) Provision for doubtful accounts 3,919 1,649 137.7 1,649 7,042 (76.6) Acquisition-related costs 7,502 8,050 (6.8) 8,050 19,071 (57.8) Software and related service costs 56,557 55,714 1.5 55,714 50,320 10.7 Other expenses 72,771 66,972 8.7 66,972 53,377 25.5 Total general and administrative $ 621,785 $ 600,851 3.5 % $ 600,851 $ 584,206 2.8 % As a percentage of revenue 15.6 % 15.8 % 15.8 % 16.2 % The increase in general and administrative expenses for 2024 as compared to 2023 was primarily due to higher payroll and related costs as a result of annual merit increases, an increase in stock-based compensation as a result of the timing of our performance-based equity award grants and an increase in other expenses related to professional service fees to support our business.
General and Administrative Expenses General and administrative expenses consisted of the following for the periods presented (in thousands): For the Years Ended December 31, For the Years Ended December 31, 2025 2024 % Change 2024 2023 % Change Payroll and related costs $ 232,671 $ 225,687 3 % $ 225,687 $ 218,272 3 % Stock-based compensation 122,624 102,494 20 102,494 94,316 9 Depreciation and amortization 66,909 66,184 1 66,184 65,817 1 Facilities-related costs 86,081 86,671 (1) 86,671 90,061 (4) Provision for doubtful accounts 6,324 3,919 61 3,919 1,649 138 Acquisition-related costs 3,247 7,502 (57) 7,502 8,050 (7) Software and related service costs 70,361 56,557 24 56,557 55,714 2 Other expenses 68,522 72,771 (6) 72,771 66,972 9 Total general and administrative $ 656,739 $ 621,785 6 % $ 621,785 $ 600,851 3 % As a percentage of revenue 16 % 16 % 16 % 16 % The increase in general and administrative expenses for 2025 as compared to 2024 was primarily due to higher stock-based compensation as a result of the increased achievement of our performance-based compensation plans, an increase in the number of participants in the equity compensation program, as well as a shift in our employer 401(k) match program from cash-based to stock-based effective in 2025, which increased stock-based compensation and partially offset the increase in payroll and related costs.