Fastly reported Q3 2026 results

Item 2.02 Results of Operations and Financial Condition.

On November 4, 2026, Fastly, Inc. (the "Company") announced its financial results for the quarter ended September 30, 2026 by issuing a press release.¹ A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.²

Attached hereto as Exhibit 99.2 and incorporated by reference herein is the Company's investor supplement², regarding results of the quarter ended September 30, 2026 (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 7.01 Regulation FD Disclosure.

On November 4, 2026, the Company posted supplemental financial and other information to http://investors.fastly.com.³

The Company may announce material business and financial information to its investors using its investor relations website (http://investors.fastly.com), its filings with the Securities and Exchange Commission, its corporate X (formerly known as Twitter) account (@Fastly), its blog (http://www.fastly.com/blog), its corporate LinkedIn account⁴ (http://www.linkedin.com/company/fastly), webcasts, press releases, and conference calls. The Company uses these mediums, including its website, to communicate with investors and the general public about the Company, its products, and other issues. It is possible that the information that we make available on these mediums may be deemed to be material information. Therefore, the Company encourages investors and others interested in the Company to review the information that it makes available through these channels.

The content of the Company's websites and information that the Company may post on or provide to online and social media channels, including those mentioned above, and information that can be accessed through the Company's websites or these online and social media channels are not incorporated by reference into this Current Report on Form 8-K or in any other report or document the Company files with the Securities and Exchange Commission, and any references to the Company's websites or these online and social media channels are intended to be inactive textual references only.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit

No. Exhibit Description

99.1 Press Release dated November 4, 2026⁵

99.2 Investor Supplement for Third Quarter 2026 Results⁵

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: November 4, 2026 By: /s/ Richard Wong⁶

Richard Wong⁶

Chief Financial Officer⁶

Fastly Announces Third Quarter 2026 Financial Results

Record third quarter revenue of $190.2 million grew 20% year-over-year⁷

Third quarter gross margin of 63.3% and non-GAAP gross margin of 65.8% match record levels

LTM NRR of 119% reaches highest level since 2022

SAN FRANCISCO — November 4, 2026 — Fastly, Inc. (NASDAQ: FSLY), a leader in global edge cloud platforms, today announced financial results for its third quarter ended September 30, 2026.

"Our record third quarter results reflect strong execution as customers continued to adopt more of our products and deepen their use of our platform," said Kip Compton, CEO of Fastly. "Delivering record revenue and free cash flow demonstrates our value proposition as we help customers achieve critical business outcomes and build for AI scale."

($ in thousands, except per share data) (unaudited) Three months ended

September 30, Nine months ended

September 30,

Gross margin

GAAP gross margin 63.3 % 58.4 % 63.0 % 55.4 %

Non-GAAP gross margin (1)

65.8 % 62.8 % 65.6 % 59.8 %

Income (loss) from operations

GAAP loss from operations $ (11,272) $ (28,788) $ (49,600) $ (103,910)

Non-GAAP income from operations (1)

$ 31,193 $ 11,608 $ 77,329 $ 1,169

Net income (loss) per share

GAAP net loss per common share — basic and diluted $ (0.07) $ (0.20) $ (0.30) $ (0.73)

Non-GAAP net income (loss) per common share — basic (1)

$ 0.20 $ 0.08 $ 0.51 $ (0.00)

Non-GAAP net income (loss) per common share — diluted (1)

$ 0.17 $ 0.07 $ 0.45 $ (0.00)

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.

Third Quarter 2026 Financial Summary

• Total revenue of $190.2 million, representing 20% year-over-year growth.⁷ Network Services revenue of $138.0 million, representing 16% year-over-year growth. Security revenue of $44.7 million, representing 32% year-over-year growth. Other revenue of $7.4 million, representing 37% 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. *

• Generated $40.0 million of operating cash flow compared to $28.9 million of operating cash flow in the third quarter of 2025.^{9 9}Generated $25.2 million of positive free cash flow⁹ compared to $18.1 million in the third quarter of 2025.

• GAAP gross margin of 63.3%, compared to 58.4% in the third quarter of 2025. Non-GAAP gross margin 1 of 65.8%, compared to 62.8% in the third quarter of 2025.

• GAAP loss from operations was $11.3 million, or 5.9% of revenue, compared to $28.8 million, or 18.2% of revenue, in the third quarter of 2025.⁸ Non-GAAP income from operations 1 was $31.2 million, or 16.4% of revenue, compared to $11.6 million, or 7.3% of revenue in the third quarter of 2025.

• GAAP net loss of $11.3 million, compared to $29.5 million in the third quarter of 2025. Non-GAAP net income 1 of $31.6 million, compared to $11.1 million in the third quarter of 2025.

• GAAP net loss per basic and diluted share of $0.07, compared to $0.20 in the third quarter of 2025.⁸ Non-GAAP net income per basic share 1 of $0.20, c ompared to $0.08 in the third quarter of 2025. Non-GAAP net income per diluted share 1 of $0.17, compared to $0.07 in the third quarter of 2025.

*As a result of displaying amounts in millions, rounding differences may exist.

Key Metrics

• Multiproduct adoption among large customers 2 reached 74% for two or more product suites, up 7 percentage points year-over-year, while adoption of four or more product suites surged to 34%, up 15 percentage points year-over-year. 3

• Remaining Performance Obligations (RPO) 4 were $334 million⁹, up 24% from $268 million in the third quarter of 2025.

• Fastly's top ten customers accounted for 39% of revenue in the third quarter of 2026 compared to 32% in the third quarter of 2025.

• Last 12-month net retention rate (LTM NRR) 5 increased to 119% in the third quarter from 117% in the second quarter of 2026.

Third Quarter Business and Product Highlights

• Expanded the Fastly for AI portfolio by launching AI Runtime Control, AI Firewall, and new API Security capabilities, providing organizations with real-time visibility and granular control to govern, secure, and scale AI applications and agent interactions on Fastly's unified platform.

• Partnered with Comcast to integrate Fastly's software into Comcast's nationwide network, enabling hyper-local content and application delivery so Xfinity members can experience ultra-low latency streaming, edge AI services, and enhanced network capacity during peak traffic events.

• Appointed Tricia Yankovich as Chief People Officer, adding a strong track record of scaling people systems and high-performance cultures at Five9 and Shield AI to align talent strategy with financial outcomes as Fastly grows.

• Fastly was recognized as a 2026 Gartner® Peer Insights™ Customers' Choice for Edge Distribution Platforms, earning the highest overall rating of 4.8 out of 5 stars and a 95% Willingness to Recommend score, reflecting exceptional platform performance and customer support.

• Partnered with Ingram Micro in Singapore, enabling organizations to modernize their digital infrastructure so ent