SEC Form 4 · accession 0001517413-26-000258

Fastly, Inc. · FSLY

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Chief Technology Officer · Director

Period of report

Aug 27, 2026

Accepted (ET)

Aug 31, 2026 · 5:00 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0001517413

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock^F2	Aug 27, 2026	S	851	$24.08	D	1,920,050	D
Class A Common Stock^F2,F3	holding	—	—		—	1,658,564	I	See Footnote.
Class A Common Stock^F4	holding	—	—		—	840,005	I	See Footnote
Class A Common Stock^F5	holding	—	—		—	109,686	I	See Footnote
Class A Common Stock^F6	holding	—	—		—	156,521	I	See Footnote
Class A Common Stock^F7	holding	—	—		—	588,671	I	See Footnote
Class A Common Stock^F8	holding	—	—		—	254,808	I	See Footnote

No Table II lines on this filing.

F1Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.
F2Amounts reflect the shift from direct to indirect ownership of 52,603 shares contributed by Mr. Bergman to the Per Artur Bergman Revocable Trust on August 28, 2026.
F3The shares are held by The Per Artur Bergman Revocable Trust, of which the reporting person is settlor, sole trustee, and sole beneficiary.
F4The shares are held by The Artur Bergman Remainder Trust One DTD 5/2/2019, of which the reporting person is the investment advisor.
F5The shares are held by The Artur Bergman Remainder Trust Three DTD 5/2/2019, of which the reporting person is the investment advisor.
F6The shares are held by The PAB 2021 Remainder Trust, of which the reporting person is the investment advisor.
F7The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 4, of which the reporting person is trustee.
F8The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 5, of which the reporting person is trustee.