Charles Lacey Compton III - 10 Aug 2025 Form 4 Insider Report for Fastly, Inc. (FSLY)

Role: CEO, Director
Signature: /s/ Tara Seracka, Attorney-in-Fact
Issuer symbol: FSLY
Transactions as of: 10 Aug 2025
Net transactions value: $0
Form type: 4
Filing time: 13 Aug 2025, 17:18:20 UTC
Previous filing: 21 Jul 2025
Next filing: 20 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Compton Charles Lacey III	CEO, Director	C/O FASTLY, INC., 475 BRANNAN STREET, SUITE 300, SAN FRANCISCO	/s/ Tara Seracka, Attorney-in-Fact	13 Aug 2025	0002074428

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FSLY	Class A Common Stock	Award	$0	+277,777	+68%	$0.000000	688,980	10 Aug 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares are represented by restricted stock units (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. One-sixteenth (6.25%) of the total RSUs will vest on August 15, 2025 and the remainder will vest in 15 equal quarterly installments (November, February, May, and August) of one-sixteenth thereafter (6.25% of the total RSUs will vest per quarter), provided in each case that the grantee is providing Continuous Service (as defined in the 2019 Plan) to the Company. Provided that if a quarterly vesting date occurs on any day that is not a trading day, the quarterly vesting date shall instead be the next trading day.

Content

The shares are represented by restricted stock units (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. One-sixteenth (6.25%) of the total RSUs will vest on August 15, 2025 and the remainder will vest in 15 equal quarterly installments (November, February, May, and August) of one-sixteenth thereafter (6.25% of the total RSUs will vest per quarter), provided in each case that the grantee is providing Continuous Service (as defined in the 2019 Plan) to the Company. Provided that if a quarterly vesting date occurs on any day that is not a trading day, the quarterly vesting date shall instead be the next trading day.