Fastly, Inc. — Director's Dealing 2025

Nov 20, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Fastly, Inc. (FSLY)
CIK: 0001517413
Period of Report: 2025-11-18

Reporting Person: Bergman Artur (Director, Chief Technology Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-18	Class A Common Stock	S	27999	$10.23	Disposed	3010559	Direct
2025-11-18	Class A Common Stock	S	34829	$10.68	Disposed	2975730	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	2500558	Indirect
Class A Common Stock	840005	Indirect
Class A Common Stock	109686	Indirect
Class A Common Stock	50481	Indirect
Class A Common Stock	792998	Indirect
Class A Common Stock	156521	Indirect

Footnotes

F1: Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.23 to $10.25. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (5) to this Form 4.

F3: The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.

F4: The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 34,829 shares of common stock of the Issuer in a transaction that resulted in a change in
the form of beneficial ownership from direct to indirect.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.30 to $10.97, inclusive.

F6: The shares are held by The Per Artur Bergman Revocable Trust, of which the reporting person is settlor, sole trustee, and sole beneficiary.

F7: The shares are held by The Artur Bergman Remainder Trust One DTD 5/2/2019, of which the reporting person is the investment advisor.

F8: The shares are held by The Artur Bergman Remainder Trust Three DTD 5/2/2019, of which the reporting person is the investment advisor.

F9: The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 3, of which the reporting person is trustee.

F10: The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 4, of which the reporting person is trustee.

F11: The shares are held by The PAB 2021 Remainder Trust, of which the reporting person is the investment advisor.