[Form 4] Fastly, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) insider sale by CTO/Director Artur Bergman: The filing reports that Artur Bergman, Fastly's Chief Technology Officer and a director, sold 20,000 shares of Class A common stock on 09/08/2025 at a weighted average price of $7.45 per share pursuant to a Rule 10b5-1 trading plan adopted June 3, 2025. After the sale, he directly owned 3,501,276 shares and held additional indirect beneficial ownership across multiple trusts totaling several separate holdings described in the footnotes. The Form 4 was signed by an attorney-in-fact on 09/10/2025.

Positive

• Transaction executed under a Rule 10b5-1 trading plan, indicating the sale was pre-planned and not opportunistic
• Comprehensive disclosure of indirect holdings with footnotes identifying trusts and the reporting person's roles (settlor, trustee, investment advisor)

Negative

• Officer disposed of 20,000 Class A shares, reducing direct ownership from prior levels
• Sale price reflects market activity (weighted average $7.45), which may be below prior public highs (no prior price context provided in filing)

Insights

Securities Analyst

TL;DR: Officer sold a small portion of large holdings under a pre-established 10b5-1 plan; transaction appears routine and disclosed.

The reported sale of 20,000 Class A shares at a weighted average price of $7.45 was executed under a Rule 10b5-1 trading plan adopted June 3, 2025. Given the reporting person retains direct ownership of 3,501,276 shares and additional indirect holdings across multiple trusts, this disposal represents a modest reduction relative to total beneficial ownership disclosed. The use of a 10b5-1 plan indicates the transaction was pre-planned, which typically mitigates concerns about opportunistic timing. Disclosure is complete with footnotes identifying the entities holding indirect positions.

Corporate Governance Expert

TL;DR: Disclosure aligns with Section 16 requirements; footnotes clearly describe indirect holdings and fiduciary roles.

The Form 4 lists Bergman as settlor, trustee, or investment advisor for the trusts that hold additional Class A shares, and the filing includes explanatory footnotes for each indirect holding. The filing also indicates an attorney-in-fact signed the document, a common execution method. The presence of a 10b5-1 plan and explicit footnote descriptions support governance transparency. No amendments or additional derivative transactions are reported.

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)
09/08/2025

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	09/08/2025		S(1)		20,000	D	$7.45(2)	3,501,276	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 $7.30 to $7.53. 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	09/10/2025
	** 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

What did Artur Bergman report on the Form 4 for FSLY?

The filing reports that Artur Bergman sold 20,000 Class A shares on 09/08/2025 at a weighted average price of $7.45 under a Rule 10b5-1 trading plan.

How many shares does Bergman directly own after the reported sale?

After the transaction, Bergman directly beneficially owned 3,501,276 Class A shares according to the Form 4.

Does Bergman have additional indirect ownership in FSLY?

Yes. The Form 4 discloses multiple indirect holdings held in trusts, including The Per Artur Bergman Revocable Trust and several remainder and GRANTOR trusts, with specific share counts provided in footnotes.

When was the 10b5-1 plan adopted for these sales?

The Form 4 states the Rule 10b5-1 trading plan was adopted on June 3, 2025.

Who signed the Form 4?

The Form 4 was executed by Tara Seracka, Attorney-in-Fact on 09/10/2025.