Fastly (NYSE: FSLY) CTO sells 869 shares for RSU tax obligations

Rhea-AI Filing Summary

Fastly, Inc. director and Chief Technology Officer Artur Bergman reported an open-market sale of 869 shares of Class A common stock on February 27, 2026 at a weighted average price of $17.50 per share. According to the filing, these shares were sold to satisfy tax obligations related to the vesting of previously granted restricted stock units.

After the sale, Bergman directly owned 1,841,663 shares. The filing also lists additional indirect holdings through several trusts, including 2,185,135 shares in one trust and 840,005 shares in another, reflecting his roles as settlor, trustee, or investment advisor.

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

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

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)
02/27/2026

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	02/27/2026		S(1)		869	D	$17.5(2)	1,841,663	D
Class A Common Stock								2,185,135	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. Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.50 to $17.51, inclusive. 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	03/02/2026
	** 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).
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FAQ

What insider transaction did Fastly (FSLY) report for Artur Bergman?

Fastly reported that Chief Technology Officer Artur Bergman sold 869 shares of Class A common stock. The sale occurred on February 27, 2026 at a weighted average price of $17.50 per share, as disclosed in a Form 4 insider trading report.

Why did Fastly (FSLY) CTO Artur Bergman sell 869 shares?

The 869 shares sold by CTO Artur Bergman were used to satisfy tax obligations tied to the vesting of previously granted restricted stock units. This type of sale is a common method for insiders to cover withholding taxes on equity compensation.

What is Artur Bergman’s direct Fastly (FSLY) share ownership after this Form 4?

After the reported sale, Artur Bergman directly owned 1,841,663 shares of Fastly Class A common stock. This figure reflects only his direct holdings and excludes additional shares held indirectly through various trusts referenced in the filing footnotes.

At what price did the Fastly (FSLY) insider shares sell on February 27, 2026?

The Form 4 states a weighted average sale price of $17.50 per share for the 869 shares sold on February 27, 2026. The shares were sold in multiple transactions at prices ranging from $17.50 to $17.51, according to the filing footnotes.

Does Artur Bergman hold Fastly (FSLY) shares indirectly through trusts?

Yes. The filing notes several trusts holding Fastly shares, including The Per Artur Bergman Revocable Trust and multiple remainder and grantor retained annuity trusts. One such trust holds 2,185,135 shares and another holds 840,005 shares as of the reported date.

Is the Fastly (FSLY) insider sale related to new investment decisions?

The Form 4 describes the 869-share sale as being to satisfy tax obligations from restricted stock unit vesting. That characterization indicates the transaction is tied to equity award taxation rather than a discretionary change in Artur Bergman’s investment exposure.