[Form 4] Fastly, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) insider filing: CTO and director Artur Bergman reported open-market sales of Class A common stock on 11/06/2025 under a Rule 10b5-1 plan adopted on June 3, 2025.

He sold 153,533 shares at a weighted average price of $10.49 (transactions ranged from $10.01 to $11.00) and 66,467 shares at a weighted average price of $11.07 (ranged from $11.01 to $11.21).

Following these transactions, beneficial ownership was 3,121,276 shares held directly. Indirect holdings include 2,500,558 shares by The Per Artur Bergman Revocable Trust. The filing notes a prior contribution of 220,000 shares to that trust, reflecting a change in form of ownership from direct to indirect.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bergman Artur

(Last) (First) (Middle)

C/O FASTLY, INC.

475 BRANNAN STREET, SUITE 300

(Street)

SAN FRANCISCO CA 94107

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Fastly, Inc. [ FSLY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/06/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	11/06/2025		S(1)		153,533(2)	D	$10.49(3)	3,187,743	D
Class A Common Stock	11/06/2025		S(1)		66,467(2)	D	$11.07(4)	3,121,276	D
Class A Common Stock								2,500,558	I	See Foonote(5)
Class A Common Stock								840,005	I	See Footnote(6)
Class A Common Stock								109,686	I	See Footnote(7)
Class A Common Stock								50,481	I	See Footnote(8)
Class A Common Stock								792,998	I	See Footnote(9)
Class A Common Stock								156,521	I	See Footnote(10)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

2. The shares were sold by the Per Artur Bergman Revocable Trust, to which the reporting person contributed 220,000 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.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.01 to $11.00. 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 (3) and (4) to this Form 4.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.01 to $11.21, inclusive.

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

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

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

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

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

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

Remarks:

	/s/ Tara Seracka, Attorney-in-Fact	11/10/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many FSLY shares did the CTO sell on 11/06/2025?

Two sales: 153,533 shares at a weighted average of $10.49 and 66,467 shares at a weighted average of $11.07.

Were the FSLY sales under a 10b5-1 plan?

Yes. The sales were made pursuant to a Rule 10b5-1 plan adopted on June 3, 2025.

What price ranges applied to the FSLY insider sales?

The first trade ranged from $10.01 to $11.00; the second ranged from $11.01 to $11.21.

How many FSLY shares does the insider own after the trades?

Direct beneficial ownership is 3,121,276 shares after the reported transactions.

What are the insider’s indirect FSLY holdings?

Indirect holdings include 2,500,558 shares held by The Per Artur Bergman Revocable Trust.

What changed in the form of ownership for some FSLY shares?

A contribution of 220,000 shares to the Revocable Trust changed the form from direct to indirect ownership.

What is the insider’s role at Fastly (FSLY)?

Artur Bergman is a Director and the Chief Technology Officer.