0001517413false00015174132025-02-122025-02-12

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549 
FORM 8-K
CURRENT REPORT

Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): February 12, 2025 
FASTLY, INC.
(Exact name of Registrant as Specified in Its Charter)
 
Delaware001-3889727-5411834
(State or other jurisdiction of
incorporation or organization)
(Commission File Number)(I.R.S. Employer
Identification Number)

475 Brannan Street, Suite 300
San Francisco, CA 94107
(Address of principal executive offices) (Zip code)
(844) 432-7859
(Registrant’s Telephone Number, Including Area Code)
Not Applicable
(Former Name or Former Address, if Changed Since Last Report) 
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class Trading
Symbol(s)
 Name of each exchange
on which registered
Class A Common Stock, $0.00002 par value “FSLY” New York Stock Exchange
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company  
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐







Item 2.02                   Results of Operations and Financial Condition.

On February 12, 2025, Fastly, Inc. (the "Company") announced its financial results for the quarter and full year ended December 31, 2024 by issuing a press release. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Attached hereto as Exhibit 99.2 and incorporated by reference herein is the Company’s investor supplement, regarding results of the quarter and fiscal year ended December 31, 2024 (the “Investor Supplement”). The Investor Supplement will be posted to http://investors.fastly.com immediately after the filing of this Form 8-K.

The information furnished on this Form 8-K, including the exhibits attached, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.



Item 9.01                   Financial Statements and Exhibits.
 
(d)Exhibits
 





SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
 
FASTLY, INC.
Dated:February 12, 2025 By: /s/ Ronald W. Kisling
   Ronald W. Kisling
   Chief Financial Officer



Exhibit 99.1
Fastly Announces Fourth Quarter and Full Year 2024 Financial Results
Company reports record fourth quarter revenue of $140.6 million

SAN FRANCISCO — February 12, 2025 Fastly, Inc. (NYSE: FSLY), a leader in global edge cloud platforms, today announced financial results for its fourth quarter and full year ended December 31, 2024.
“We are pleased to report record fourth quarter revenue, exceeding the high-end of our guidance range,” said Todd Nightingale, CEO of Fastly.
“Our platform strategy is delivering an accelerated innovation velocity and faster time to value for anyone building web experiences,” continued Nightingale. "We enter 2025 with a strengthened balance sheet, a motivated go-to-market team, and intense focus on efficient customer acquisition and long-term revenue growth.”

Three months ended
December 31,
Year ended
December 31,
2024202320242023
Revenue$140,579 $137,777 $543,676 $505,988 
Gross margin
GAAP gross margin53.4 %55.0 %54.4 %52.6 %
Non-GAAP gross margin56.5 %59.2 %57.8 %56.9 %
Operating loss
GAAP operating loss$(34,331)$(42,584)$(167,915)$(198,028)
Non-GAAP operating loss$(4,164)$(2,268)$(27,021)$(36,679)
Net income (loss) per share
GAAP net loss per common share — basic and diluted$(0.23)$(0.18)$(1.14)$(1.03)
Non-GAAP net income (loss) per common share — basic and diluted$(0.03)$0.01 $(0.12)$(0.17)
For a reconciliation of non-GAAP financial measures to their corresponding GAAP measures, please refer to the reconciliation table at the end of this press release.
Fourth Quarter 2024 Financial Summary
Total revenue of $140.6 million, representing 2% year-over-year growth. Network services revenue of $110.1 million, representing flat year-over-year growth. Security revenue of $26.9 million, representing 4% year-over-year growth. Other revenue of $3.6 million, representing 63% year-over-year growth. Network services revenue includes solutions designed to improve performance of websites, apps, APIs, and digital media. Security revenue includes products designed to protect websites, apps, APIs, and users. Other revenue includes Compute and Observability solutions.
GAAP gross margin of 53.4%, compared to 55.0% in the fourth quarter of 2023. Non-GAAP gross margin of 56.5%, compared to 59.2% in the fourth quarter of 2023.
GAAP net loss of $32.9 million, compared to $23.4 million in the fourth quarter of 2023. Non-GAAP net loss of $3.8 million, compared to non-GAAP net income of $1.7 million in the fourth quarter of 2023.
GAAP net loss per basic and diluted share of $0.23, compared to $0.18 in the fourth quarter of 2023. Non-GAAP net loss per diluted share of $0.03, compared to non-GAAP net income per diluted share of $0.01 in the fourth quarter of 2023.
Full Year 2024 Financial Summary
Total revenue of $543.7 million, representing 7% year-over-year growth. Network services revenue of $427.7 million, representing 6% year-over-year growth. Security revenue of $103.0 million, representing 11% year-over-year growth. Other revenue of $12.9 million, representing 61% year-over-year growth. Network services revenue includes solutions designed to improve performance of websites, apps, APIs, and digital media. Security revenue includes products designed to protect websites, apps, APIs, and users. Other revenue includes Compute and Observability solutions.
GAAP gross margin of 54.4%, compared to 52.6% in fiscal 2023. Non-GAAP gross margin of 57.8%, compared to 56.9% in fiscal 2023.





GAAP net loss of $158.1 million, compared to $133.1 million in fiscal 2023. Non-GAAP net loss of $17.2 million, compared to $21.7 million in fiscal 2023.
GAAP net loss per basic and diluted share of $1.14, compared to $1.03 in fiscal 2023. Non-GAAP net loss per basic and diluted share of $0.12, compared to $0.17 in fiscal 2023.
Key Metrics
Enterprise customer1 count was 596 in the fourth quarter, up 20 from the third quarter of 2024.
Fastly's top ten customers accounted for 32% of revenue in the fourth quarter compared to 40% in the fourth quarter of 2023. Revenue from the top ten customers declined 18% year-over-year compared to revenue growth of 16% year-over-year from customers outside the top ten.
Last 12-month net retention rate (LTM NRR)2 decreased to 102% in the fourth quarter from 105% in the third quarter of 2024.
Remaining performance obligations (RPO)3 were $244 million, up 4% from $235 million in the third quarter of 2024.
Annual revenue retention rate (ARR)4 was 99.0% in 2024, decreasing from 99.2% in 2023.
Fourth Quarter Business and Product Highlights
Refinanced a portion of our outstanding convertible debt, raising $150 million of 7.75% convertible senior notes with a 100% conversion premium due in 2028 and repurchased $158 million in principal amount of our existing 0% convertible notes due in 2026 for approximately $0.95 on the dollar.
Fastly named a Leader in the IDC MarketScape: Worldwide Edge Delivery Services 2024 Vendor Assessment (November 2024). This is the second time Fastly has been named a Leader in an IDC MarketScape report.
Fastly named to the 2025 Newsweek Excellence Index, a list of the top 1000 companies that have demonstrated best practices in stakeholder ratings, social responsibility, and financial responsibility.
Fastly Bot Management won a 2025 DEVIES Award for the Best Innovation in AppSecOps.
Customer packages grew over 60% year-over-year and those involving new logos grew 70% year-over-year. In 2024, customer packages grew over 150%.
Launched Fastly DDoS Protection to automatically detect and mitigate disruptive and distributed attacks against applications and APIs.
Released Fastly AI Accelerator to GA and expanded compatibility to leading LLMs, including OpenAI ChatGPT and Google Gemini.
Launched Fastly Object Storage, an S3-compatible large object storage solution with zero egress fees, allowing users to store and access large files with a familiar footprint.
Added Log Explorer & Insights to Fastly Observability packages to help users unlock valuable insights within log data.
Made it easier for customers to purchase Fastly products with in-app purchases for Fastly DDoS Protection, Object Storage, and AI Accelerator.

First Quarter and Full Year 2025 Guidance

Q1 2025
Full Year 2025
Total Revenue (millions)$136.0 - $140.0$575.0 - $585.0
Non-GAAP Operating Loss (millions)($11.0) - ($7.0)($15.0) - ($9.0)
Non-GAAP Net Loss per share (5)(6)
($0.09) - ($0.05)($0.15) - ($0.09)
A reconciliation of non-GAAP guidance measures to corresponding GAAP measures is not available on a forward-looking basis without unreasonable effort due to the uncertainty of expenses that may be incurred in the future and cannot be reasonably determined or predicted at this time, although it is important to note that these factors could be material to Fastly’s future GAAP financial results.






Conference Call Information
Fastly will host an investor conference call to discuss its results at 1:30 p.m. PT / 4:30 p.m. ET on Wednesday, February 12, 2025.

Date: Wednesday, February 12, 2025
Time: 1:30 p.m. PT / 4:30 p.m. ET
Webcast: https://investors.fastly.com
Dial-in: 888-330-2022 (US/CA) or 646-960-0690 (Intl.)
Conf. ID#: 7543239

Please dial in at least 10 minutes prior to the 1:30 p.m. PT start time. A live webcast of the call will be available at https://investors.fastly.com where listeners may log on to the event by selecting the webcast link under the “Quarterly Results” section.

A telephone replay of the conference call will be available at approximately 5:00 p.m. PT, February 12 through February 19, 2025 by dialing 800-770-2030 or 609-800-9909 and entering the passcode 7543239.


About Fastly, Inc.
Fastly’s powerful and programmable edge cloud platform helps the world’s top brands deliver online experiences that are fast, safe, and engaging through edge compute, delivery, security, and observability offerings that improve site performance, enhance security, and empower innovation at global scale. Compared to other providers, Fastly’s powerful, high-performance, and modern platform architecture empowers developers to deliver secure websites and apps with rapid time-to-market and demonstrated, industry-leading cost savings. Organizations around the world trust Fastly to help them upgrade the internet experience, including Reddit, Neiman Marcus, Universal Music Group, and SeatGeek. Learn more about Fastly at https://www.fastly.com, and follow us @fastly.


Forward-Looking Statements

This press release contains “forward-looking” statements that are based on our beliefs and assumptions and on information currently available to us on the date of this press release. Forward-looking statements may involve known and unknown risks, uncertainties, and other factors that may cause our actual results, performance, or achievements to be materially different from those expressed or implied by the forward-looking statements. These statements include, but are not limited to, statements regarding our future financial and operating performance, including our outlook and guidance; our operating performance; our ability to innovate; the velocity and success of our products and product enhancements; the capabilities of Fastly Bot Management, Fastly DDoS Protection, Fastly AI Accelerator, Fastly Object Storage, and Log Explorer & Insights; expectations regarding customer experiences with Fastly's in-app purchases; our customer acquisition and go-to-market efforts; our ability to monetize; and our ability to deliver on our long-term strategy. Except as required by law, we assume no obligation to update these forward-looking statements publicly or to update the reasons actual results could differ materially from those anticipated in the forward-looking statements, even if new information becomes available in the future. Important factors that could cause our actual results to differ materially are detailed from time to time in the reports Fastly files with the Securities and Exchange Commission (“SEC”), including in our Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2024. Additional information will also be set forth in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024. Copies of reports filed with the SEC are posted on Fastly’s website and are available from Fastly without charge.

Use of Non-GAAP Financial Measures
To supplement our condensed consolidated financial statements, which are prepared and presented in accordance with accounting principles generally accepted in the United States (GAAP), the Company uses the following non-GAAP measures of financial performance: non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating loss, non-GAAP net income (loss), non-GAAP basic and diluted net income (loss) per common share, non-GAAP research and development, non-GAAP sales and marketing, non-GAAP general and administrative, free cash flow and adjusted EBITDA. The presentation of this additional financial information is not intended to be considered in isolation from, as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. These non-GAAP measures have limitations in that they do not reflect all of the amounts associated with our results of operations as determined in accordance with GAAP. In





addition, these non-GAAP financial measures may be different from the non-GAAP financial measures used by other companies. These non-GAAP measures should only be used to evaluate our results of operations in conjunction with the corresponding GAAP measures. Management compensates for these limitations by reconciling these non-GAAP financial measures to the most comparable GAAP financial measures within our earnings releases.
Non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating loss, non-GAAP net income (loss) and non-GAAP basic and diluted net loss per common share, non-GAAP research and development, non-GAAP sales and marketing, and non-GAAP general and administrative differ from GAAP in that they exclude stock-based compensation expense, amortization of acquired intangible assets, net gain on extinguishment of debt, impairment expense and amortization of debt discount and issuance costs.

Adjusted EBITDA: excludes stock-based compensation expense, depreciation and other amortization expenses, amortization of acquired intangible assets, executive transition costs, interest income, interest expense, including amortization of debt discount and issuance costs, net gain on extinguishment of debt, impairment expense, other expense, net, and income taxes.

Amortization of Acquired Intangible Assets: consists of non-cash charges that can be affected by the timing and magnitude of asset purchases and acquisitions. Management considers its operating results without this activity when evaluating its ongoing non-GAAP performance and its adjusted EBITDA performance because these charges are non-cash expenses that can be affected by the timing and magnitude of asset purchases and acquisitions and may not be reflective of our core business, ongoing operating results, or future outlook.

Amortization of Debt Discount and Issuance Costs: consists primarily of amortization expense related to our debt obligations. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook. These are included in our total interest expense.
Capital Expenditures: consists of cash used for purchases of property and equipment, net of proceeds from sale of property and equipment, capitalized internal-use software and payments on finance lease obligations, as reflected in our statement of cash flows.
Depreciation and Other Amortization Expense: consists of non-cash charges that can be affected by the timing and magnitude of asset purchases. Management considers its operating results without this activity when evaluating its ongoing adjusted EBITDA performance because these charges are non-cash expenses that can be affected by the timing and magnitude of asset purchases and may not be reflective of our core business, ongoing operating results, or future outlook.
Executive Transition Costs: consists of one-time cash and non-cash charges recognized with respect to changes in our executive’s employment status. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Free Cash Flow: calculated as net cash used in operating activities less purchases of property and equipment, net of proceeds from sale of property and equipment, principal payments of finance lease liabilities, capitalized internal-use software costs and advance payments made related to capital expenditures. Management specifically identifies adjusting items in the reconciliation of GAAP to non-GAAP financial measures. Management considers non-GAAP free cash flow to be a profitability and liquidity measure that provides useful information to management and investors about the amount of cash generated by the business that can possibly be used for investing in Fastly's business and strengthening its balance sheet, but it is not intended to represent the residual cash flow available for discretionary expenditures. The presentation of non-GAAP free cash flow is also not meant to be considered in isolation or as an alternative to cash flows from operating activities as a measure of liquidity.
Impairment Expense: consists of charges related to our long-lived assets. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Income Taxes: consists primarily of expenses recognized related to state and foreign income taxes. Management considers its operating results without this activity when evaluating its ongoing adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Interest Expense: consists primarily of interest expense related to our debt instruments, including amortization of debt discount and issuance costs. Management considers its operating results without this activity when evaluating its ongoing





non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Interest Income: consists primarily of interest income related to our marketable securities. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Net Gain on Debt Extinguishment: relates to net gain on the partial repurchase of our outstanding convertible debt. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Other Expense, Net: consists primarily of foreign currency transaction gains and losses. Management considers its operating results without this activity when evaluating its ongoing adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Restructuring Charges: consists primarily of employee-related severance and termination benefits related to management's restructuring plan that resulted in a reduction in our workforce. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Stock-Based Compensation Expense: consists of expenses for stock options, restricted stock units, performance awards, restricted stock awards and Employee Stock Purchase Plan ("ESPP") under our equity incentive plans. Although stock-based compensation is an expense for the Company and is viewed as a form of compensation, management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance, primarily because it is a non-cash expense not believed by management to be reflective of our core business, ongoing operating results, or future outlook. In addition, the value of some stock-based instruments is determined using formulas that incorporate variables, such as market volatility, that are beyond our control.
Management believes these non-GAAP financial measures and adjusted EBITDA serve as useful metrics for our management and investors because they enable a better understanding of the long-term performance of our core business and facilitate comparisons of our operating results over multiple periods and to those of peer companies, and when taken together with the corresponding GAAP financial measures and our reconciliations, enhance investors' overall understanding of our current financial performance.
In the financial tables below, the Company provides a reconciliation of the most comparable GAAP financial measure to the historical non-GAAP financial measures used in this press release.
Key Metrics
1 Our number of customers is calculated based on the number of separate identifiable operating entities with which we have a billing relationship in good standing, from which we recognized revenue during the current quarter. Our enterprise customers are defined as those with annualized current quarter revenue in excess of $100,000. This is calculated by taking the revenue for each customer within the quarter and multiplying it by four.
2 We calculate LTM Net Retention Rate by dividing the total customer revenue for the prior twelve-month period (“prior 12-month period”) ending at the beginning of the last twelve-month period (“LTM period”) minus revenue contraction due to billing decreases or customer churn, plus revenue expansion due to billing increases during the LTM period from the same customers by the total prior 12-month period revenue. We believe the LTM Net Retention Rate is supplemental as it removes some of the volatility that is inherent in a usage-based business model.
3 Remaining performance obligations include future committed revenue for periods within current contracts with customers, as well as deferred revenue arising from consideration invoiced for which the related performance obligations have not been satisfied.
4 Annual Revenue Retention rate is calculated by first calculating "Annual Revenue Churn", which is calculated by multiplying the final full month of revenue from a customer that terminated its contract with us, (a "Churned Customer") by the number of months remaining in the same calendar year. Our ARR rate is calculated by subtracting the quotient of the Annual Revenue





Churn from all of our Churned Customers from which we recognized revenue during the last quarter of the prior year divided by our annual revenue of the same calendar year from 100%. Our ARR was 99.0%, down 0.2% year-over-year.
5 Non-GAAP Net Loss per share is calculated as Non-GAAP Net Loss divided by weighted average basic shares for 2025.
6 Assumes weighted average basic shares outstanding of 143.4 million in Q1 2025 and 147.1 million for the full year 2025.

Condensed Consolidated Statements of Operations
(in thousands, except per share amounts, unaudited)

Three months ended
December 31,
Year ended
December 31,
2024202320242023
Revenue$140,579 $137,777 $543,676 $505,988 
Cost of revenue(1)
65,516 62,003 247,738 239,660 
Gross profit75,063 75,774 295,938 266,328 
Operating expenses:
Research and development(1)
32,742 38,270 137,980 152,190 
Sales and marketing(1)
50,050 48,662 198,610 191,773 
General and administrative(1)
26,154 31,426 113,399 116,077 
Impairment expense
448 — 4,144 4,316 
Restructuring charges— — 9,720 — 
Total operating expenses
109,394 118,358 463,853 464,356 
Loss from operations(34,331)(42,584)(167,915)(198,028)
Net gain on extinguishment of debt1,365 15,656 1,365 52,416 
Interest income3,267 4,584 14,871 18,186 
Interest expense(1,231)(744)(2,747)(4,051)
Other expense, net(815)(763)(1,028)(1,832)
Loss before income tax expense (benefit)(31,745)(23,851)(155,454)(133,309)
Income tax expense (benefit)1,141 (465)2,604 (221)
Net loss$(32,886)$(23,386)$(158,058)$(133,088)
Net loss per share attributable to common stockholders, basic and diluted$(0.23)$(0.18)$(1.14)$(1.03)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted141,085 131,843 138,099 128,770 

__________

(1)Includes stock-based compensation expense as follows:
Three months ended
December 31,
Year ended
December 31,
2024202320242023
Cost of revenue$1,910 $3,278 $8,644 $11,656 
Research and development7,922 12,019 33,606 47,827 
Sales and marketing7,047 8,060 29,061 33,703 
General and administrative8,066 12,090 36,619 43,117 
Total$24,945 $31,418 $107,930 $136,303 





Reconciliation of GAAP to Non-GAAP Financial Measures
(in thousands, unaudited)
Three months ended
December 31,
Year ended
December 31,
2024202320242023
Gross profit
GAAP gross profit$75,063 $75,774 $295,938 $266,328 
Stock-based compensation1,910 3,278 8,644 11,656 
Amortization of acquired intangible assets2,475 2,475 9,900 9,900 
Non-GAAP gross profit$79,448 $81,527 $314,482 $287,884 
GAAP gross margin53.4 %55.0 %54.4 %52.6 %
Non-GAAP gross margin56.5 %59.2 %57.8 %56.9 %
Research and development
GAAP research and development$32,742 $38,270 $137,980 $152,190 
Stock-based compensation(7,922)(11,728)(33,606)(45,840)
Executive transition costs— (385)— (2,791)
Non-GAAP research and development$24,820 $26,157 $104,374 $103,559 
Sales and marketing
GAAP sales and marketing$50,050 $48,662 $198,610 $191,773 
Stock-based compensation(7,047)(8,060)(29,061)(33,703)
Amortization of acquired intangible assets(2,299)(2,300)(9,200)(10,026)
Non-GAAP sales and marketing$40,704 $38,302 $160,349 $148,044 
General and administrative
GAAP general and administrative$26,154 $31,426 $113,399 $116,077 
Stock-based compensation(8,066)(12,090)(36,619)(43,117)
Non-GAAP general and administrative$18,088 $19,336 $76,780 $72,960 
Operating loss
GAAP operating loss$(34,331)$(42,584)$(167,915)$(198,028)
Stock-based compensation24,945 35,156 107,930 134,316 
Restructuring charges— — 9,720 — 
Executive transition costs— 385 — 2,791 
Amortization of acquired intangible assets4,774 4,775 19,100 19,926 
Impairment expense448 — 4,144 4,316 
Non-GAAP operating loss$(4,164)$(2,268)$(27,021)$(36,679)
Net loss
GAAP net loss$(32,886)$(23,386)$(158,058)$(133,088)
Stock-based compensation24,945 35,156 107,930 134,316 
Restructuring charges— — 9,720 — 
Executive transition costs— 385 — 2,791 
Amortization of acquired intangible assets4,774 4,775 19,100 19,926 
Net gain on extinguishment of debt(1,365)(15,656)(1,365)(52,416)
Impairment expense448 — 4,144 4,316 
Amortization of debt discount and issuance costs318 456 1,379 2,477 
Non-GAAP net income (loss)$(3,766)$1,730 $(17,150)$(21,678)
Non-GAAP net income (loss) per common share — basic and diluted$(0.03)$0.01 $(0.12)$(0.17)
Weighted average basic common shares141,085131,843138,099128,770
Weighted average diluted common shares141,085141,162138,099128,770






Reconciliation of GAAP to Non-GAAP Financial Measures
(in thousands, unaudited) (continued)
Three months ended
December 31,
Year ended
December 31,
2024202320242023
Reconciliation of GAAP to Non-GAAP diluted shares
GAAP diluted shares
141,085 131,843 138,099 128,770 
Other dilutive equity awards
— 9,319 — — 
Non-GAAP diluted shares
141,085 141,162 138,099 128,770 
Non-GAAP diluted net income (loss) per share
(0.03)0.01 (0.12)(0.17)


Three months ended
December 31,
Year ended
December 31,
2024202320242023
Adjusted EBITDA
GAAP net loss$(32,886)$(23,386)$(158,058)$(133,088)
Stock-based compensation24,945 35,156 107,930 134,316 
Restructuring charges— — 9,720 — 
Executive transition costs— 385 — 2,791 
Net gain on extinguishment of debt(1,365)(15,656)(1,365)(52,416)
Impairment expense448 — 4,144 4,316 
Depreciation and other amortization13,911 13,727 54,535 52,139 
Amortization of acquired intangible assets4,774 4,775 19,100 19,926 
Amortization of debt discount and issuance costs318 456 1,379 2,477 
Interest income(3,267)(4,584)(14,871)(18,186)
Interest expense913 288 1,368 1,574 
Other expense, net815 763 1,028 1,832 
Income tax expense (benefit)1,141 (465)2,604 (221)
Adjusted EBITDA$9,747 $11,459 $27,514 $15,460 





Condensed Consolidated Balance Sheets
(in thousands, unaudited)
As of
December 31, 2024
As of
December 31, 2023
ASSETS
Current assets:
Cash and cash equivalents$286,175 $107,921 
Marketable securities, current9,707 214,799 
Accounts receivable, net of allowance for credit losses115,988 120,498 
Prepaid expenses and other current assets28,325 20,455 
Total current assets440,195 463,673 
Property and equipment, net179,097 176,608 
Operating lease right-of-use assets, net50,433 55,212 
Goodwill670,356 670,356 
Intangible assets, net42,876 62,475 
Marketable securities, non-current— 6,088 
Other assets68,402 90,779 
Total assets$1,451,359 $1,525,191 
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable$6,044 $5,611 
Accrued expenses41,622 61,818 
Finance lease liabilities, current2,328 15,684 
Operating lease liabilities, current25,155 24,042 
Other current liabilities29,307 40,539 
Total current liabilities104,456 147,694 
Long-term debt337,614 343,507 
Finance lease liabilities, non-current— 1,602 
Operating lease liabilities, non-current39,561 48,484 
Other long-term liabilities4,478 4,416 
Total liabilities486,109 545,703 
Stockholders’ equity:
Common stock
Additional paid-in capital1,958,157 1,815,245 
Accumulated other comprehensive loss(100)(1,008)
Accumulated deficit(992,810)(834,752)
Total stockholders’ equity965,250 979,488 
Total liabilities and stockholders’ equity$1,451,359 $1,525,191 








Condensed Consolidated Statements of Cash Flows
(in thousands, unaudited)
Three months ended
December 31,
Year ended
December 31,
2024202320242023
Cash flows from operating activities:
Net loss$(32,886)$(23,386)$(158,058)$(133,088)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation expense13,786 13,587 54,037 51,602 
Amortization of intangible assets4,900 4,899 19,599 20,424 
Non-cash lease expense5,655 5,451 22,474 22,678 
Amortization of debt discount and issuance costs316 456 1,377 2,476 
Amortization of deferred contract costs4,746 4,295 18,623 15,548 
Stock-based compensation24,945 35,447 107,930 136,303 
Deferred income taxes893 (900)1,793 (900)
Provision for credit losses1,434 714 3,834 2,025 
Loss on disposals of property and equipment96 — 540 505 
Amortization of discounts on investments(507)(990)(3,973)(646)
Impairment of operating lease right-of-use assets— 156 371 744 
Impairment expense448 — 4,144 4,316 
Net gain on extinguishment of debt(1,365)(15,656)(1,365)(52,416)
Other adjustments(897)905 (814)648 
Changes in operating assets and liabilities:
Accounts receivable(622)(22,590)676 (32,945)
Prepaid expenses and other current assets(207)4,107 (7,627)8,709 
Other assets(4,140)(6,868)(11,869)(23,137)
Accounts payable(3,903)(876)611 382 
Accrued expenses1,220 (1,603)(2,922)(7,856)
Operating lease liabilities(7,200)(5,137)(26,541)(22,074)
Other liabilities(1,492)612 (6,434)7,064 
Net cash provided by (used in) operating activities5,220 (7,377)16,406 362 
Cash flows from investing activities:
Purchases of marketable securities— (59,142)(155,099)(132,233)
Sales of marketable securities— 24,850 — 25,625 
Maturities of marketable securities81,480 5,642 371,189 433,767 
Advance payment for purchase of property and equipment— — (790)— 
Purchases of property and equipment(4,969)(2,693)(10,330)(10,976)
Proceeds from sale of property and equipment— — 24 49 
Capitalized internal-use software(5,602)(5,902)(26,094)(21,292)
Net cash provided by (used in) investing activities 70,909 (37,245)178,900 294,940 
Cash flows from financing activities:
Payments of debt issuance costs(5,729)— (5,729)— 
Cash paid for debt extinguishment— (113,606)— (310,540)
Repayments of finance lease liabilities(2,554)(5,932)(14,958)(27,175)
Payment of deferred consideration for business acquisitions— — (3,771)(4,393)
Proceeds from exercise of vested stock options805 161 1,115 2,169 
Proceeds from employee stock purchase plan161 1,550 6,244 8,559 
Net cash used in financing activities(7,317)(117,827)(17,099)(331,380)
Effects of exchange rate changes on cash, cash equivalents, and restricted cash(151)70 (103)608 
Net increase (decrease) in cash, cash equivalents, and restricted cash68,661 (162,379)178,104 (35,470)
Cash, cash equivalents, and restricted cash at beginning of period217,514 270,450 108,071 143,541 
Cash, cash equivalents, and restricted cash at end of period286,175 108,071 286,175 108,071 
Reconciliation of cash, cash equivalents, and restricted cash as shown in the statements of cash flows:
Cash and cash equivalents286,175 107,921 286,175 107,921 
Restricted cash, current— 150 — 150 
Total cash, cash equivalents, and restricted cash$286,175 $108,071 $286,175 $108,071 







Free Cash Flow
(in thousands, unaudited)
Three months ended
December 31,
Year ended
December 31,
2024202320242023
Net cash provided by (used in) operating activities$5,220 $(7,377)$16,406 $362 
Capital expenditures(1)
(13,125)(14,527)(51,358)(59,394)
Advance payment for purchase of property and equipment(2)
— — (790)— 
Free Cash Flow$(7,905)$(21,904)$(35,742)$(59,032)
__________
(1)Capital expenditures are defined as cash used for purchases of property and equipment, net of proceeds from sale of property and equipment, capitalized internal-use software and payments on finance lease obligations, as reflected in our statement of cash flows.
(2)In the year ended December 31, 2024, we received $14.6 million of capital equipment that was prepaid prior to the current year, as reflected in the supplemental disclosure of our statement of cash flows.












Contacts
Investor Contact
Vernon Essi, Jr.
ir@fastly.com

Media Contact
Spring Harris
press@fastly.com

Source: Fastly, Inc.

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Fourth Quarter 2024 Investor Supplement

Corporate Highlights
Refinanced a portion of our outstanding convertible debt, raising $150 million of 7.75% convertible senior notes with a 100% conversion premium due in 2028 and repurchased $158 million in principal amount of our existing 0% convertible notes due in 2026 for approximately $0.95 on the dollar.
Fastly named a Leader in the IDC MarketScape: Worldwide Edge Delivery Services 2024 Vendor Assessment (November 2024). This is the second time Fastly has been named a Leader in an IDC MarketScape report.
Fastly named to the 2025 Newsweek Excellence Index, a list of the top 1000 companies that have demonstrated best practices in stakeholder ratings, social responsibility, and financial responsibility.
Fastly Bot Management won a 2025 DEVIES Award for the Best Innovation in AppSecOps.

Product Innovation and Developments
Launched Fastly DDoS Protection to automatically detect and mitigate disruptive and distributed attacks against applications and APIs.
Released Fastly AI Accelerator to GA and expanded compatibility to leading LLMs, including OpenAI ChatGPT and Google Gemini.
Launched Fastly Object Storage, an S3-compatible large object storage solution with zero egress fees, allowing users to store and access large files with a familiar footprint.
Added Log Explorer & Insights to Fastly Observability packages to help users unlock valuable insights within log data.
Made it easier for customers to purchase Fastly products with in-app purchases for Fastly DDoS Protection, Object Storage, and AI Accelerator.


Calculations of Key and Other Selected Metrics – Quarterly (unaudited)
Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Revenue by Product (in millions):
Network Services Revenue$94.3$98.5$102.5$109.8$106.0$104.2$107.4$110.1
Security Revenue$21.2$22.5$23.3$25.8$24.6$25.4$26.2$26.9
Other Revenue$2.0$1.8$1.9$2.2$2.9$2.8$3.6$3.6
Total Revenue
$117.6$122.8$127.8$137.8$133.5$132.4$137.2$140.6
Key Metrics:
Enterprise Customer Count(1)
540 551 547 578 577 601 576 596 
Enterprise Customer Revenue %91 %92 %92 %92 %91 %91 %92 %93 %
Total Customer Count(1)
3,100 3,072 3,102 3,243 3,290 3,295 3,638 3,061 
Top Ten Customer Revenue %35 %37 %40 %40 %38 %34 %33 %32 %
LTM Net Retention Rate (NRR)(2)
116 %116 %114 %113 %114 %110 %105 %102 %
Annual Revenue Retention Rate (ARR)(4)
— %— %— %99.2 %— %— %— %99.0 %
Remaining Performance Obligation (RPO)(3)
$242.4$230.9$247.6$235.7$227.0$223.1$235.4$244.4
Exhibit 99.2

Customer and Partner Highlights
Customer packages grew over 60% year-over-year and those involving new logos grew 70% year-over-year. In 2024, customer packages grew over 150%.
Insurance Auto Auctions, an RB Global company and a global marketplace for insights, services, and transaction solutions for commercial assets and vehicles, selected Fastly’s Network Services offerings.
Instructure, an education technology company, selected Fastly’s Next-Gen WAF for its Credentials and Learner Mobility products.
Hacomono, an all-in-one management system for wellness/sports facilities, selected Fastly’s Next-Gen WAF offerings.

Key Metrics Highlights
Enterprise customer1 count was 596 in the fourth quarter, up 20 from the third quarter of 2024.
Fastly's top ten customers accounted for 32% of revenue in the fourth quarter compared to 40% in the fourth quarter of 2023.
Last 12-month net retention rate (LTM NRR)2 decreased to 102% in the fourth quarter from 105% in the third quarter of 2024.
Remaining performance obligations (RPO)3 were $244 million, up 4% from $235 million in the third quarter of 2024.
Annual revenue retention rate (ARR)4 was 99.0% in 2024, decreasing from 99.2% in 2023.
First Quarter and Full Year 2025 Guidance:
Q1 2025Full Year 2025
Total Revenue (millions)$136.0 - $140.0$575.0 - $585.0
Non-GAAP Operating Loss (millions)(5)
($11.0) - ($7.0)($15.0) - ($9.0)
Non-GAAP Net Loss per share (6)(7)
($0.09) - ($0.05)($0.15) - ($0.09)




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Key Metrics
1.Our number of customers is calculated based on the number of separate identifiable operating entities with which we have a billing relationship in good standing, from which we recognized revenue during the current quarter. Our enterprise customers are defined as those with annualized current quarter revenue in excess of $100,000. This is calculated by taking the revenue for each customer within the quarter and multiplying it by four. During the fourth quarter of 2024, we identified an immaterial error in the historical calculation of our total customer count related to our online self-service customers. Revenue that would have been recorded for these customers was less than $0.1 million for the quarter ended December 31, 2024. Due to the immateriality, we have not revised prior periods.
2.We calculate LTM Net Retention Rate by dividing the total customer revenue for the prior twelve-month period (“prior 12-month period”) ending at the beginning of the last twelve-month period (“LTM period”) minus revenue contraction due to billing decreases or customer churn, plus revenue expansion due to billing increases during the LTM period from the same customers by the total prior 12-month period revenue. We believe the LTM Net Retention Rate is supplemental as it removes some of the volatility that is inherent in a usage-based business model.
3.Remaining performance obligations include future committed revenue for periods within current contracts with customers, as well as deferred revenue arising from consideration invoiced for which the related performance obligations have not been satisfied.
4.Annual Revenue Retention rate is calculated by first calculating "Annual Revenue Churn", which is calculated by multiplying the final full month of revenue from a customer that terminated its contract with us, (a "Churned Customer") by the number of months remaining in the same calendar year. Our ARR rate is calculated by subtracting the quotient of the Annual Revenue Churn from all of our Churned Customers from which we recognized revenue during the last quarter of the prior year divided by our annual revenue of the same calendar year from 100%. Our ARR was 99.0%, down 0.2% year-over-year.
5.For a reconciliation of non-GAAP financial measures to their corresponding GAAP measures, please refer to the reconciliation table at the end of this supplement.
6.Assumes weighted average basic shares outstanding of 143.4 million in Q1 2025 and 147.1 million for the full year 2025.
7. Non-GAAP Net Loss per share is calculated as Non-GAAP Net Loss divided by weighted average basic shares for 2025.



Forward-Looking Statements

This investor supplement contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended, about us and our industry that involve substantial risks and uncertainties. Forward-looking statements generally relate to future events or Fastly's future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as "may," "will," "should," "expects," "plans," "anticipates,” “going to,” "could," "intends," "target," "projects," "contemplates," "believes," "estimates," "predicts," "potential," "continue," “would,” or the negative of these words or other similar terms or expressions that concern Fastly's expectations, goals, strategy, priorities, plans, projections, or intentions. Forward-looking statements in this investor supplement include, but are not limited to, statements regarding Fastly’s future financial and operating performance, including its outlook and guidance; the performance of our existing and new products and product enhancements; the capabilities of Fastly Next-Gen WAF, Fastly Bot Management, Fastly DDoS Protection, Fastly AI Accelerator, Fastly Object Storage, and Log Explorer & Insights; expectations regarding customer experiences with Fastly's in-app purchases; and Fastly's strategies, product and business plans. Fastly's expectations and beliefs regarding these matters may not materialize, and actual results in future periods are subject to risks and uncertainties that could cause actual results to differ materially from those projected. These risks include the possibility that: Fastly is unable to attract and retain customers; Fastly's existing customers and partners do not maintain or increase usage of Fastly's platform; Fastly's platform and product features do not meet expectations, including due to defects, interruptions, security breaches, delays in performance or other similar problems; Fastly is unable to adapt to meet evolving market and customer demands and rapid technological change; Fastly is unable to comply with modified or new industry standards, laws and regulations; Fastly is unable to generate sufficient revenues to achieve or sustain profitability; Fastly’s limited operating history makes it difficult to evaluate its prospects and future operating results; Fastly is unable to effectively manage its growth; and Fastly is unable to compete effectively. The forward-looking statements contained in this investor supplement are also subject to other risks and uncertainties, including those more fully described in Fastly’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2024, and additional information set forth in Fastly's Annual Report on Form


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10-K for the year ended December 31, 2024 and other filings and reports that Fastly may file from time to time with the SEC. The forward-looking statements in this investor supplement are based on information available to Fastly as of the date hereof, and Fastly disclaims any obligation to update any forward-looking statements, except as required by law.
Non-GAAP Financial Measures
To supplement our condensed consolidated financial statements, which are prepared and presented in accordance with accounting principles generally accepted in the United States ("GAAP"), the Company uses the following non-GAAP measures of financial performance: non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating loss, non-GAAP net income (loss), non-GAAP basic and diluted net income (loss) per common share, non-GAAP research and development, non-GAAP sales and marketing, non-GAAP general and administrative, free cash flow and adjusted EBITDA. The presentation of this additional financial information is not intended to be considered in isolation from, as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. These non-GAAP measures have limitations in that they do not reflect all of the amounts associated with our results of operations as determined in accordance with GAAP. In addition, these non-GAAP financial measures may be different from the non-GAAP financial measures used by other companies. These non-GAAP measures should only be used to evaluate our results of operations in conjunction with the corresponding GAAP measures. Management compensates for these limitations by reconciling these non-GAAP financial measures to the most comparable GAAP financial measures within our earnings releases.
Non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating loss, non-GAAP net income (loss) and non-GAAP basic and diluted net income (loss) per common share, non-GAAP research and development, non-GAAP sales and marketing, and non-GAAP general and administrative differ from GAAP in that they exclude stock-based compensation expense, amortization of acquired intangible assets, acquisition-related expenses, executive transition costs, net gain on extinguishment of debt, impairment expense and amortization of debt discount and issuance costs.
Adjusted EBITDA: excludes stock-based compensation expense, depreciation and other amortization expenses, amortization of acquired intangible assets, acquisition-related expenses, executive transition costs, interest income, interest expense, including amortization of debt discount and issuance costs, net gain on extinguishment of debt, impairment expense, other income (expense), net, and income taxes.
Acquisition-Related Expenses: consists of acquisition-related charges that are not related to ongoing operations. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because these charges may not be reflective of our core business, ongoing operating results, or future outlook.
Amortization of Acquired Intangible Assets: consists of non-cash charges that can be affected by the timing and magnitude of asset purchases and acquisitions. Management considers its operating results without this activity when evaluating its ongoing non-GAAP performance and its adjusted EBITDA performance because these charges are non-cash expenses that can be affected by the timing and magnitude of asset purchases and acquisitions and may not be reflective of our core business, ongoing operating results, or future outlook.
Amortization of Debt Discount and Issuance Costs: consists primarily of amortization expense related to our debt obligations. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook. These are included in our total interest expense.
Capital Expenditures: consists of cash used for purchases of property and equipment, net of proceeds from sale of property and equipment, capitalized internal-use software and payments on finance lease obligations, as reflected in our statement of cash flows.
Depreciation and Other Amortization Expense: consists of non-cash charges that can be affected by the timing and magnitude of asset purchases. Management considers its operating results without this activity when evaluating its ongoing adjusted EBITDA performance because these charges are non-cash expenses that can be affected by the timing and magnitude of asset purchases and may not be reflective of our core business, ongoing operating results, or future outlook.
Executive Transition Costs: consists of one-time cash and non-cash charges recognized with respect to changes in our executive’s employment status. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.


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Free Cash Flow: calculated as net cash used in operating activities less purchases of property and equipment, net of proceeds from sale of property and equipment, principal payments of finance lease liabilities, capitalized internal-use software costs and advance payments made related to capital expenditures. Management specifically identifies adjusting items in the reconciliation of GAAP to non-GAAP financial measures. Management considers non-GAAP free cash flow to be a profitability and liquidity measure that provides useful information to management and investors about the amount of cash generated by the business that can possibly be used for investing in Fastly's business and strengthening its balance sheet, but it is not intended to represent the residual cash flow available for discretionary expenditures. The presentation of non-GAAP free cash flow is also not meant to be considered in isolation or as an alternative to cash flows from operating activities as a measure of liquidity.
Impairment Expense: consists of charges related to our long-lived assets. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Income Taxes: consists primarily of expenses recognized related to state and foreign income taxes. Management considers its operating results without this activity when evaluating its ongoing adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Interest Expense: consists primarily of interest expense related to our debt instruments, including amortization of debt discount and issuance costs. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Interest Income: consists primarily of interest income related to our marketable securities. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Net Gain on Debt Extinguishment: relates to net gain on the partial repurchase of our outstanding convertible debt. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Other Income (Expense), Net: consists primarily of foreign currency transaction gains and losses. Management considers its operating results without this activity when evaluating its ongoing adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Restructuring Charges: consists primarily of employee-related severance and termination benefits related to management's restructuring plan that resulted in a reduction in our workforce. Management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance because it is not believed by management to be reflective of our core business, ongoing operating results or future outlook.
Stock-Based Compensation Expense: consists of expenses for stock options, restricted stock units, performance awards, restricted stock awards and Employee Stock Purchase Plan ("ESPP") under our equity incentive plans. Although stock-based compensation is an expense for the Company and is viewed as a form of compensation, management considers its operating results without this activity when evaluating its ongoing non-GAAP net income (loss) performance and its adjusted EBITDA performance, primarily because it is a non-cash expense not believed by management to be reflective of our core business, ongoing operating results, or future outlook. In addition, the value of some stock-based instruments is determined using formulas that incorporate variables, such as market volatility, that are beyond our control.
Management believes these non-GAAP financial measures and adjusted EBITDA serve as useful metrics for our management and investors because they enable a better understanding of the long-term performance of our core business and facilitate comparisons of our operating results over multiple periods and to those of peer companies, and when taken together with the corresponding GAAP financial measures and our reconciliations, enhance investors' overall understanding of our current financial performance.
In the financial tables below, the Company provides a reconciliation of the most comparable GAAP financial measure to the historical non-GAAP financial measures used in this investor supplement.


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Consolidated Statements of Operations – Quarterly
(unaudited, in thousands, except per share amounts)
Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Revenue$117,564 $122,831 $127,816 $137,777 $133,520 $132,371 $137,206 $140,579 
Cost of revenue(1)
57,310 58,617 61,730 62,003 60,286 59,470 62,466 65,516 
Gross profit60,254 64,214 66,086 75,774 73,234 72,901 74,740 75,063 
Operating expenses:
Research and development(1)
37,431 37,421 39,068 38,270 38,248 35,106 31,884 32,742 
Sales and marketing(1)
44,271 47,797 51,043 48,662 49,607 52,959 45,994 50,050 
General and administrative (1)
25,827 28,823 30,001 31,426 31,639 28,433 27,173 26,154 
Impairment expense— — 4,316 — — 3,137 559 448 
Restructuring charges
— — — — — — 9,720 — 
Total operating expenses107,529 114,041 124,428 118,358 119,494 119,635 115,330 109,394 
Loss from operations(47,275)(49,827)(58,342)(42,584)(46,260)(46,734)(40,590)(34,331)
Net gain on extinguishment of debt— 36,760 — 15,656 — — — 1,365 
Interest income4,186 4,508 4,908 4,584 3,848 3,937 3,819 3,267 
Interest expense(1,213)(1,232)(862)(744)(579)(464)(473)(1,231)
Other income (expense), net
(250)(803)(16)(763)(89)193 (317)(815)
Loss before income tax expense (benefit)
(44,552)(10,594)(54,312)(23,851)(43,080)(43,068)(37,561)(31,745)
Income tax expense (benefit)135 110 (1)(465)347 661 455 1,141 
Net loss$(44,687)$(10,704)$(54,311)$(23,386)$(43,427)$(43,729)$(38,016)$(32,886)
Net loss per share attributable to common stockholders, basic and diluted$(0.36)$(0.08)$(0.42)$(0.18)$(0.32)$(0.32)$(0.27)$(0.23)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted125,418 127,863 129,873 131,843 134,587 137,444 139,237 141,085 
__________
(1)Includes stock-based compensation expense as follows:
Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Cost of revenue$2,681 $2,837 $2,860 $3,278 $2,779 $2,044 $1,911 $1,910 
Research and development11,481 12,205 12,122 12,019 10,323 7,983 7,378 7,922 
Sales and marketing6,705 9,877 9,061 8,060 7,843 7,058 7,113 7,047 
General and administrative7,284 12,073 11,670 12,090 10,876 9,063 8,614 8,066 
Total$28,151 $36,992 $35,713 $35,447 $31,821 $26,148 $25,016 $24,945 




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Reconciliation of GAAP to Non-GAAP Financial Measures - Quarterly
(unaudited, in thousands, except per share amounts)
Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Gross Profit
GAAP gross Profit$60,254 $64,214 $66,086 $75,774 $73,234 $72,901 $74,740 $75,063 
Stock-based compensation2,681 2,837 2,860 3,278 2,779 2,044 1,911 1,910 
Amortization of acquired intangible assets2,475 2,475 2,475 2,475 2,475 2,475 2,475 2,475 
Non-GAAP gross profit65,410 69,526 71,421 81,527 78,488 77,420 79,126 79,448 
GAAP gross margin51.3 %52.3 %51.7 %55.0 %54.8 %55.1 %54.5 %53.4 %
Non-GAAP gross margin55.6 %56.6 %55.9 %59.2 %58.8 %58.5 %57.7 %56.5 %
Research and development
GAAP research and development37,431 37,421 39,068 38,270 38,248 35,106 31,884 32,742 
Stock-based compensation(11,481)(12,205)(10,426)(11,728)(10,323)(7,983)(7,378)(7,922)
Executive transition costs— — (2,406)(385)— — — — 
Non-GAAP research and development25,950 25,216 26,236 26,157 27,925 27,123 24,506 24,820 
Sales and marketing
GAAP sales and marketing44,271 47,797 51,043 48,662 49,607 52,959 45,994 50,050 
Stock-based compensation(6,705)(9,877)(9,061)(8,060)(7,843)(7,058)(7,113)(7,047)
Amortization of acquired intangible assets(2,575)(2,575)(2,576)(2,300)(2,300)(2,301)(2,300)(2,299)
Non-GAAP sales and marketing34,991 35,345 39,406 38,302 39,464 43,600 36,581 40,704 
General and administrative
GAAP general and administrative25,827 28,823 30,001 31,426 31,639 28,433 27,173 26,154 
Stock-based compensation(7,284)(12,073)(11,670)(12,090)(10,876)(9,063)(8,614)(8,066)
Non-GAAP general and administrative18,543 16,750 18,331 19,336 20,763 19,370 18,559 18,088 
Operating loss
GAAP operating loss(47,275)(49,827)(58,342)(42,584)(46,260)(46,734)(40,590)(34,331)
Stock-based compensation28,151 36,992 34,017 35,156 31,821 26,148 25,016 24,945 
Restructuring charges
— — — — — — 9,720 — 
Executive transition costs— — 2,406 385 — — — — 
Amortization of acquired intangible assets5,050 5,050 5,051 4,775 4,775 4,776 4,775 4,774 
Impairment expense
— — 4,316 — — 3,137 559 448 
Non-GAAP operating loss(14,074)(7,785)(12,552)(2,268)(9,664)(12,673)(520)(4,164)
Net loss
GAAP net loss(44,687)(10,704)(54,311)(23,386)(43,427)(43,729)(38,016)(32,886)
Stock-based compensation28,151 36,992 34,017 35,156 31,821 26,148 25,016 24,945 
Restructuring charges— — — — — — 9,720 — 
Executive transition costs— — 2,406 385 — — — — 
Amortization of acquired intangible assets5,050 5,050 5,051 4,775 4,775 4,776 4,775 4,774 
Net gain on extinguishment of debt — (36,760)— (15,656)— — — (1,365)
Impairment expense— — 4,316 — — 3,137 559 448 
Amortization of debt issuance costs716 803 502 456 354 349 358 318 
Non-GAAP net income (loss)
$(10,770)$(4,619)$(8,019)$1,730 $(6,477)$(9,319)$2,412 $(3,766)
GAAP net loss per common share — basic and diluted
$(0.36)$(0.08)$(0.42)$(0.18)$(0.32)$(0.32)$(0.27)$(0.23)
Non-GAAP net income (loss) per common share — basic and diluted$(0.09)$(0.04)$(0.06)$0.01 $(0.05)$(0.07)$0.02 $(0.03)
Weighted average basic common shares125,418 127,863 129,873 131,843 134,587 137,444 139,237 141,085 
Weighted average diluted common shares125,418 127,863 129,873 141,162 134,587 137,444 143,415 141,085 



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Reconciliation of GAAP to Non-GAAP Financial Measures - Quarterly (Continued)
(unaudited, in thousands, except per share amounts)

Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Reconciliation of GAAP to Non-GAAP diluted shares:
GAAP diluted shares125,418 127,863 129,873 131,843 134,587 137,444 139,237 141,085 
Other dilutive equity awards— — — 9,319 — — 4,178 — 
Non-GAAP diluted shares125,418 127,863 129,873 141,162 134,587 137,444 143,415 141,085 
Non-GAAP diluted net income (loss) per share
(0.09)(0.04)(0.06)0.01 (0.05)(0.07)0.02 (0.03)

Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Adjusted EBITDA
GAAP net loss$(44,687)$(10,704)$(54,311)$(23,386)$(43,427)$(43,729)$(38,016)$(32,886)
Stock-based compensation28,151 36,992 34,017 35,156 31,821 26,148 25,016 24,945 
Depreciation and other amortization12,179 13,030 13,202 13,727 13,400 13,443 13,781 13,911 
Amortization of acquired intangible assets5,050 5,050 5,051 4,775 4,775 4,776 4,775 4,775 
Amortization of debt discount and issuance costs716 803 502 456 354 349 358 318 
Restructuring charges— — — — — — 9,720 — 
Executive transition costs— — 2,406 385 — — — — 
Net gain on extinguishment of debt— (36,760)— (15,656)— — — (1,365)
Impairment expense— — 4,316 — — 3,137 559 448 
Interest income(4,186)(4,508)(4,908)(4,584)(3,848)(3,937)(3,819)(3,267)
Interest expense497 429 360 288 225 115 115 913 
Other (income) expense, net250 803 16 763 89 (193)317 815 
Income tax (benefit) expense135 110 (1)(465)347 661 455 1,141 
Adjusted EBITDA$(1,895)$5,245 $650 $11,459 $3,736 $770 $13,261 $9,747 




























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Non-GAAP Consolidated Statements of Operations - Quarterly
(unaudited, in thousands, except per share amounts)
Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Revenue$117,564 $122,831 $127,816 $137,777 $133,520 $132,371 $137,206 $140,579 
Cost of revenue (1)(2)
52,154 53,305 56,395 56,250 55,032 54,951 58,080 61,131 
Gross profit (1)(2)
65,410 69,526 71,421 81,527 78,488 77,420 79,126 79,448 
Operating expenses:
Research and development(1)(3)
25,950 25,216 26,236 26,157 27,925 27,123 24,506 24,820 
Sales and marketing(1)(2)
34,991 35,345 39,406 38,302 39,464 43,600 36,581 40,704 
General and administrative (1)
18,543 16,750 18,331 19,336 20,763 19,370 18,559 18,088 
Total operating expenses(1)(2)(3)(4)(5)
79,484 77,311 83,973 83,795 88,152 90,093 79,646 83,612 
Loss from operations(1)(2)(3)(4)(5)
(14,074)(7,785)(12,552)(2,268)(9,664)(12,673)(520)(4,164)
Interest income4,186 4,508 4,908 4,584 3,848 3,937 3,819 3,267 
Interest expense(6)
(497)(429)(360)(288)(225)(115)(115)(913)
Other income (expense), net(250)(803)(16)(763)(89)193 (317)(815)
Income (loss) before income tax expense (benefit)(1)(2)(3)(4)(5)(6)(7)
(10,635)(4,509)(8,020)1,265 (6,130)(8,658)2,867 (2,625)
Income tax expense (benefit)
135 110 (1)(465)347 661 455 1,141 
Net income (loss)(1)(2)(3)(4)(5)(6)(7)
$(10,770)$(4,619)$(8,019)$1,730 $(6,477)$(9,319)$2,412 $(3,766)
Net income (loss) per share attributable to common stockholders, basic and diluted$(0.09)$(0.04)$(0.06)$0.01 $(0.05)$(0.07)$0.02 $(0.03)
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders, basic125,418127,863129,873131,843134,587137,444139,237141,085
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders, diluted125,418127,863129,873141,162134,587137,444143,415141,085
(1) Excludes stock-based compensation. See GAAP to Non-GAAP reconciliations.
(2) Excludes amortization of acquired intangible assets. See GAAP to Non-GAAP reconciliations.
(3) Excludes executive transition costs. See GAAP to Non-GAAP reconciliations.
(4) Excludes impairment expense. See GAAP to Non-GAAP reconciliations.
(5) Excludes restructuring charges. See GAAP to Non-GAAP reconciliations.
(6) Excludes amortization of debt discount and issuance costs. See GAAP to Non-GAAP reconciliations.
(7) Excludes net gain on extinguishment of debt. See GAAP to Non-GAAP reconciliations.





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Consolidated Balance Sheets - Quarterly
(unaudited, in thousands)
Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Assets
Current assets:
Cash and cash equivalents$348,463 $273,742 $270,300 $107,921 $150,809 $147,196 $217,514 $286,175 
Marketable securities198,116 123,605 158,055 214,799 178,677 164,569 90,733 9,707 
Accounts receivable, net85,344 78,295 98,622 120,498 107,517 113,878 116,800 115,988 
Prepaid expenses and other current assets29,717 29,500 24,481 20,455 23,207 25,312 28,011 28,325 
Total current assets661,640 505,142 551,458 463,673 460,210 450,955 453,058 440,195 
Property and equipment, net179,922 179,045 171,914 176,608 177,574 177,058 180,288 179,097 
Operating lease right-of-use assets, net60,615 56,733 52,927 55,212 54,420 52,451 47,700 50,433 
Goodwill670,192 670,356 670,356 670,356 670,356 670,356 670,356 670,356 
Intangible assets, net77,725 72,550 67,375 62,475 57,576 52,676 47,776 42,876 
Marketable securities, non-current117,518 78,042 32,280 6,088 1,743 — — — 
Other assets94,798 95,550 94,353 90,779 84,044 79,176 72,576 68,402 
Total assets$1,862,410 $1,657,418 $1,640,663 $1,525,191 $1,505,923 $1,482,672 $1,471,754 $1,451,359 
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable$4,668 $5,561 $5,723 $5,611 $5,485 $5,532 $11,354 $6,044 
Accrued expenses42,311 47,001 56,595 61,818 35,555 34,445 40,854 41,622 
Finance lease liabilities24,763 22,233 19,250 15,684 11,974 8,178 4,882 2,328 
Operating lease liabilities20,516 20,575 21,533 24,042 22,580 25,399 23,857 25,155 
Other current liabilities32,942 36,234 40,234 40,539 44,633 35,748 33,261 29,307 
Total current liabilities125,200 131,604 143,335 147,694 120,227 109,302 114,208 104,456 
Long-term debt, less current portion705,378 472,369 472,823 343,507 343,837 344,167 344,498 337,614 
Finance lease liabilities, noncurrent10,858 7,026 3,860 1,602 440 — — — 
Operating lease liabilities, noncurrent56,275 51,448 47,775 48,484 46,857 44,634 40,565 39,561 
Other long-term liabilities6,144 7,217 4,298 4,416 2,756 3,382 3,029 4,478 
Total liabilities903,855 669,664 672,091 545,703 514,117 501,485 502,300 486,109 
Stockholders’ equity:
Common stock
Additional paid-in capital1,710,498 1,747,959 1,781,870 1,815,245 1,870,503 1,903,374 1,929,397 1,958,157 
Accumulated other comprehensive loss(5,594)(3,152)(1,934)(1,008)(521)(282)(22)(100)
Accumulated deficit(746,351)(757,055)(811,366)(834,752)(878,179)(921,908)(959,924)(992,810)
Total stockholders’ equity958,555 987,754 968,572 979,488 991,806 981,187 969,454 965,250 
Total liabilities and stockholders’ equity$1,862,410 $1,657,418 $1,640,663 $1,525,191 $1,505,923 $1,482,672 $1,471,754 $1,451,359 








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Consolidated Statements of Cash Flows – Quarterly
(unaudited, in thousands)

Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Cash flows from operating activities:
Net loss$(44,687)$(10,704)$(54,311)$(23,386)$(43,427)$(43,729)$(38,016)$(32,886)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense12,040 12,920 13,055 13,587 13,277 13,318 13,656 13,786 
Amortization of intangible assets5,175 5,175 5,175 4,899 4,899 4,900 4,900 4,900 
Non-cash lease expense6,115 5,648 5,464 5,451 5,556 5,800 5,463 5,655 
Amortization of debt discount and issuance costs716 803 501 456 354 349 358 316 
Amortization of deferred contract costs3,425 3,746 4,082 4,295 4,573 4,531 4,773 4,746 
Stock-based compensation28,151 36,992 35,713 35,447 31,821 26,148 25,016 24,945 
Deferred income taxes
— — — (900)228 333 339 893 
Provision for credit losses533 567 211 714 953 393 1,054 1,434 
(Gain) loss on disposals of property and equipment251 296 (42)— 399 45 — 96 
Amortization of premiums (discounts) on investments
449 298 (403)(990)(1,158)(1,244)(1,064)(507)
Impairment of operating lease right-of-use assets— 187 401 156 — — 371 — 
Impairment expense— — 4,316 — — 3,137 559 448 
Net gain on extinguishment of debt— (36,760)— (15,656)— — — (1,365)
Other adjustments(243)(85)71 905 (259)(178)520 (897)
Changes in operating assets and liabilities:
Accounts receivable3,701 6,482 (20,538)(22,590)12,028 (6,754)(3,976)(622)
Prepaid expenses and other current assets(634)217 5,019 4,107 (2,700)(2,131)(2,589)(207)
Other assets(7,212)(4,771)(4,286)(6,868)(1,814)(3,210)(2,705)(4,140)
Accounts payable(175)1,119 314 (876)101 (341)4,754 (3,903)
Accrued expenses(6,827)234 340 (1,603)(8,760)1,911 2,707 1,220 
Operating lease liabilities(5,750)(6,682)(4,505)(5,137)(7,606)(4,406)(7,329)(7,200)
Other liabilities(3,889)9,308 1,033 612 2,667 (3,820)(3,789)(1,492)
Net cash provided by (used in) operating activities(8,861)24,990 (8,390)(7,377)11,132 (4,948)5,002 5,220 
Cash flows from investing activities:
Purchases of marketable securities— — (73,091)(59,142)(56,948)(60,249)(37,902)— 
Sales of marketable securities— 774 24,850 — — — — 
Maturities of marketable securities227,211 114,884 86,030 5,642 99,080 77,597 113,032 81,480 
Advance payment for purchase of property and equipment— — — — — (790)— — 
Purchases of property and equipment
(3,494)(4,464)(325)(2,693)(1,603)(1,762)(1,996)(4,969)
Proceeds from sale of property and equipment22 14 13 — — 24 — — 
Capitalized internal-use software(4,209)(6,230)(4,951)(5,902)(6,845)(6,829)(6,818)(5,602)
Net cash provided by (used in) investing activities
219,530 104,978 7,677 (37,245)33,684 7,991 66,316 70,909 
Cash flows from financing activities:
Payments of debt issuance costs— — — — — — — (5,729)
Cash paid for debt extinguishment— (196,934)— (113,606)— — — — 
Repayments of finance lease liabilities
(8,645)(6,557)(6,041)(5,932)(4,872)(4,236)(3,296)(2,554)
Payment of deferred consideration for business acquisitions— (4,393)— — — (3,771)— — 
Proceeds from exercise of vested stock options336 535 1,137 161 111 180 19 805 
Proceeds from employee stock purchase plan2,596 2,191 2,222 1,550 2,881 1,034 2,168 161 
Net cash used in financing activities
(5,713)(205,158)(2,682)(117,827)(1,880)(6,793)(1,109)(7,317)
Effects of exchange rate changes on cash, cash equivalents, and restricted cash116 469 (47)70 (48)(13)109 (151)
Net increase (decrease) in cash, cash equivalents, and restricted cash205,072 (74,721)(3,442)(162,379)42,888 (3,763)70,318 68,661 
Cash, cash equivalents, and restricted cash at beginning of period143,541 348,613 273,892 270,450 108,071 150,959 147,196 217,514 
Cash, cash equivalents, and restricted cash at end of period$348,613 $273,892 $270,450 $108,071 $150,959 $147,196 $217,514 $286,175 



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Free Cash Flow
(in thousands, unaudited)
Quarter ended
Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024
Net cash provided by (used in) operating activities$(8,861)$24,990 $(8,390)$(7,377)$11,132 $(4,948)$5,002 $5,220 
Capital expenditures(1):
Purchases of property and equipment(3,494)(4,464)(325)(2,693)(1,603)(1,762)(1,996)(4,969)
Proceeds from sale of property and equipment22 14 13 — — 24 — — 
Capitalized internal-use software(4,209)(6,230)(4,951)(5,902)(6,845)(6,829)(6,818)(5,602)
Repayments of finance lease liabilities(8,645)(6,557)(6,041)(5,932)(4,872)(4,236)(3,296)(2,554)
Advance payment for purchase of property and equipment (2)
— — — — — (790)— — 
Free Cash Flow$(25,187)$7,753 $(19,694)$(21,904)$(2,188)$(18,541)$(7,108)$(7,905)
__________
(1)Capital expenditures are defined as cash used for purchases of property and equipment, net of proceeds from sale of property and equipment, capitalized internal-use software and payments on finance lease obligations, as reflected in our statement of cash flows.
(2)In the year ended December 31, 2024, we received $14.6 million of capital equipment that was prepaid prior to the current year, as reflected in the supplemental disclosure of our statement of cash flows.


v3.25.0.1
Cover Page
Feb. 12, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Feb. 12, 2025
Entity Registrant Name FASTLY, INC.
Entity Central Index Key 0001517413
Amendment Flag false
Entity Incorporation, State or Country Code DE
Entity File Number 001-38897
Entity Tax Identification Number 27-5411834
Entity Address, Address Line One 475 Brannan Street, Suite 300
Entity Address, City or Town San Francisco
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94107
City Area Code 844
Local Phone Number 432-7859
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Class A Common Stock, $0.00002 par value
Trading Symbol “FSLY”
Security Exchange Name NYSE
Entity Emerging Growth Company false

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