X0508 4 2026-02-04 0 0001517413 Fastly, Inc. FSLY 0001769490 Bergman Artur C/O FASTLY, INC. 475 BRANNAN STREET, SUITE 300 SAN FRANCISCO CA 94107 1 1 0 0 Chief Technology Officer 0 Class A Common Stock 2026-02-04 4 A 0 9635 0 A 2560214 D Class A Common Stock 2500558 I See Foonote Class A Common Stock 840005 I See Footnote Class A Common Stock 109686 I See Footnote Class A Common Stock 50481 I See Footnote Class A Common Stock 792998 I See Footnote Class A Common Stock 156521 I See Footnote The shares are represented by RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. 100% of the RSUs are initially subject to vesting. 25% of the number of RSUs will vest on February 15, 2026 and 25% of the number of RSUs vest on May 15, 2026, August 15, 2026, and November 15, 2026, respectively, in each case subject to the Reporting Person's continued service with the Issuer through each applicable vesting date. The shares are held by The Per Artur Bergman Revocable Trust, of which the reporting person is settlor, sole trustee, and sole beneficiary. The shares are held by The Artur Bergman Remainder Trust One DTD 5/2/2019, of which the reporting person is the investment advisor. The shares are held by The Artur Bergman Remainder Trust Three DTD 5/2/2019, of which the reporting person is the investment advisor. The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 3, of which the reporting person is trustee. The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 4, of which the reporting person is trustee. The shares are held by The PAB 2021 Remainder Trust, of which the reporting person is the investment advisor. /s/ Tara Seracka, Attorney-in-Fact 2026-02-06