[Form 4] Fastly, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) insider sale by CTO Artur Bergman. The reporting person, who is both a director and the Chief Technology Officer, sold 58,138 shares of Class A common stock on 09/02/2025 at a weighted-average price of $7.41 under a Rule 10b5-1 trading plan adopted June 3, 2025. After the sale, Mr. Bergman directly beneficially owns 3,521,276 shares and continues to hold additional indirect positions through several trusts totaling multiple separate share blocks disclosed in the form.

The sale was executed pursuant to a pre-established plan; the filer offered to provide detailed per-transaction pricing on request. No derivative transactions or amendments are reported.

Positive

• Sale executed under a Rule 10b5-1 plan, indicating the transaction was pre-planned and aimed at compliance and predictable liquidity
• Reporting person retains substantial direct ownership of 3,521,276 shares after the sale, maintaining significant alignment with shareholders

Negative

• Insider disposition of 58,138 shares may be viewed by some investors as a reduction in insider stock, though it was pre-planned
• Weighted-average sale price of $7.41 indicates execution at prices in the $7.27–$7.50 range, which may be below recent highs

Insights

Financial Analyst

TL;DR: Insider sale of 58,138 shares under a 10b5-1 plan; routine liquidity, limited immediate market impact.

The transaction is a single non-derivative sale executed under a Rule 10b5-1 plan, which typically signals a pre-planned disposition rather than opportunistic trading on material nonpublic information. The direct holdings post-sale remain substantial (3.52 million shares), and multiple indirect holdings through trusts preserve long-term exposure. For investors, this is a neutral governance event that provides transparency about insider liquidity while not materially altering control or signaling company-specific adverse developments.

Corporate Governance Expert

TL;DR: Use of a documented 10b5-1 plan and disclosure of trusts reflects good governance and compliance practice.

The filer disclosed the 10b5-1 adoption date and offered to provide granular execution pricing, which supports regulatory compliance and transparency. The filing also details the nature of multiple indirect holdings (trusts where the reporting person serves as settlor, trustee, or investment advisor), clarifying beneficial ownership structure. This level of disclosure is constructive for shareholders assessing insider alignment and governance, and the reported sale does not indicate a change in board or management roles.

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)
09/02/2025

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	09/02/2025		S(1)		58,138	D	$7.41(2)	3,521,276	D
Class A Common Stock								2,500,558	I	See Foonote(3)
Class A Common Stock								840,005	I	See Footnote(4)
Class A Common Stock								109,686	I	See Footnote(5)
Class A Common Stock								50,481	I	See Footnote(6)
Class A Common Stock								792,998	I	See Footnote(7)
Class A Common Stock								156,521	I	See Footnote(8)

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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.27 to $7.50. 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.

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

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

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

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

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

8. 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	09/04/2025
	** 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 shares did Artur Bergman sell in the Form 4 (FSLY)?

He sold 58,138 shares of Class A common stock on 09/02/2025 as reported on the Form 4.

At what price were the FSLY shares sold?

The weighted-average price was $7.41 per share, with individual transactions ranging from $7.27 to $7.50.

Was the sale part of a planned trading program?

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

How many FSLY shares does Artur Bergman beneficially own after the sale?

He directly owns 3,521,276 shares following the reported transaction, plus additional indirect holdings through trusts disclosed in the form.

Are there any derivative transactions reported by Artur Bergman?

No derivative securities (options, warrants, or convertibles) are reported in Table II of this Form 4.