[Form 4] Fastly, Inc. Insider Trading Activity

Rhea-AI Filing Summary

The filing shows Artur Bergman, CTO and director of Fastly, Inc. (FSLY), reported a transaction under a Rule 10b5-1 plan. On 10/06/2025 the reporting person caused 20,000 Class A shares to be sold at a weighted average price of $8.76, with trade prices ranging from $8.56 to $9.04. The 20,000 shares were transferred into The Per Artur Bergman Revocable Trust, changing their form of ownership from direct to indirect. After the transaction, Mr. Bergman directly beneficially owns 3,421,276 Class A shares and indirectly holds additional Class A shares across multiple trusts totaling several separate positions (largest indirect stake shown is 2,500,558 shares).

Positive

• Transaction adopted under Rule 10b5-1 trading plan (adopted 06/03/2025) which clarifies intent
• Small sale size relative to total direct holdings: 20,000 shares vs 3,421,276 direct shares

Negative

• Gross proceeds per share were modest at a weighted average of $8.76, which may reflect recent market pricing
• Change from direct to indirect ownership for 20,000 shares could complicate immediate transparency of control

Insights

Corporate Insider Transactions Analyst

Insider executed a planned sale and shifted 20,000 shares into a revocable trust.

The reported sale was executed under a Rule 10b5-1 trading plan adopted on 06/03/2025, which provides an affirmative defense for scheduled insider trades. The sale involved 20,000 Class A shares at a weighted average of $8.76, with execution prices between $8.56 and $9.04.

The transaction also converted those shares from direct ownership to indirect ownership by moving them into The Per Artur Bergman Revocable Trust, where the reporting person is settlor, sole trustee, and sole beneficiary. Monitor scheduled plan disclosures and any future Form 4s for additional trades under the same plan over the next several months.

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)
10/06/2025

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	10/06/2025		S(1)		20,000(2)	D	$8.76(3)	3,421,276	D
Class A Common Stock								2,500,558	I	See Foonote(4)
Class A Common Stock								840,005	I	See Footnote(5)
Class A Common Stock								109,686	I	See Footnote(6)
Class A Common Stock								50,481	I	See Footnote(7)
Class A Common Stock								792,998	I	See Footnote(8)
Class A Common Stock								156,521	I	See Footnote(9)

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 20,000 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 $8.56 to $9.04. 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 (3) to this Form 4.

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

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

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

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

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

9. 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	10/08/2025
	** 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

What did Fastly (FSLY) insider Artur Bergman sell on 10/06/2025?

He sold 20,000 Class A shares at a weighted average price of $8.76, with transaction prices between $8.56 and $9.04.

Was the 10/06/2025 sale by Artur Bergman planned under a trading plan?

Yes. The sale was effected pursuant to a Rule 10b5-1 trading plan adopted on 06/03/2025.

How many Class A shares does Artur Bergman directly own after the reported transaction?

He directly beneficially owns 3,421,276 Class A shares following the reported transaction.

Did the form of ownership change for the sold shares?

Yes. The 20,000 shares were contributed to The Per Artur Bergman Revocable Trust, changing ownership from direct to indirect.

What indirect holdings are disclosed for Artur Bergman?

Indirect holdings include positions of 2,500,558, 840,005, 109,686, 50,481, 792,998, and 156,521 Class A shares across multiple trusts as described.