Charles Lacey Compton III - 18 Nov 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: 18 Nov 2025
Transactions value $: -$188,795
Form type: 4
Filing time: 20 Nov 2025, 16:59:36 UTC
Previous filing: 20 Oct 2025
Next filing: 01 Dec 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	20 Nov 2025	0002074428

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FSLY	Class A Common Stock	Sale	-$189K	-18.5K	-2.8%	$10.23	641K	18 Nov 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
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 range set forth in footnote (2) to this Form 4.

Content

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

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 range set forth in footnote (2) to this Form 4.