Fastly CTO sells 31,079 shares under 10b5-1 plan

Fastly, Inc. Chief Technology Officer Artur Bergman reported selling 31,079 shares of Class A common stock on March 5, 2026, in open‑market transactions under a pre‑arranged Rule 10b5‑1 trading plan adopted on June 3, 2025.

Rhea-AI Filing Summary

Fastly, Inc. Chief Technology Officer Artur Bergman reported selling 31,079 shares of Class A common stock on March 5, 2026, in open‑market transactions under a pre‑arranged Rule 10b5‑1 trading plan adopted on June 3, 2025.

The sales were executed at weighted average prices of $20.54 and $21.23 per share. After these transactions, he held 2,118,710 shares directly, and additional Fastly shares were held indirectly through several trusts associated with him.

Insider Trade Summary

Net Seller: 31,079 shares

Net Sell 8 txns

Insider Bergman Artur

Role Chief Technology Officer

Sold 31,079 shs ($643K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	24,481	$20.54	$503K
Sale	Class A Common Stock	6,598	$21.23	$140K
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 2,118,710 shares (Direct); Class A Common Stock — 1,909,901 shares (Indirect, See Foonote); Class A Common Stock — 1,949,691 shares (Indirect, See Footnote)

Footnotes (9)

1. F1. The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 3, 2025.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.09 to $21.07, 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 ranges set forth in footnotes (2) and (3) to this Form 4.
3. F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.10 to $21.41, inclusive.
4. F4. The shares are held by The Per Artur Bergman Revocable Trust, of which the reporting person is settlor, sole trustee, and sole beneficiary.
5. F5. 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. F6. 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. F7. The shares are held by The PAB 2021 Remainder Trust, of which the reporting person is the investment advisor.
8. F8. The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 4, of which the reporting person is trustee.
9. F9. The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 5, of which the reporting person is trustee.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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

Artur Bergman reported selling 31,079 Fastly Class A shares. The sales occurred on March 5, 2026, in open‑market transactions at weighted average prices of $20.54 and $21.23 per share, according to his Form 4 insider trading report.

At what prices did Fastly (FSLY) CTO Artur Bergman sell his shares?

The reported sales used weighted average prices of $20.54 and $21.23 per share. The Form 4 notes that the shares were sold in multiple trades within price ranges around those averages, with detailed breakdowns available on request from the company or the SEC staff.

How many Fastly (FSLY) shares does Artur Bergman hold after this Form 4?

After the reported sales, Artur Bergman directly owned 2,118,710 Fastly shares. The filing also lists additional Fastly Class A shares held indirectly through several trusts for which he serves as settlor, trustee, beneficiary, or investment advisor.

Was the Fastly (FSLY) CTO’s stock sale under a 10b5-1 trading plan?

Yes, the Form 4 states the sale was made under a Rule 10b5‑1 plan. The trading plan was adopted on June 3, 2025, allowing pre‑scheduled transactions that execute automatically according to predetermined instructions regardless of later market or company developments.

What role does Artur Bergman hold at Fastly (FSLY)?

Artur Bergman is Fastly’s Chief Technology Officer and a director. His Form 4 identifies him as both an officer, with the title Chief Technology Officer, and a member of the board of directors, making his equity transactions subject to SEC insider reporting rules.

How are trusts involved in Artur Bergman’s Fastly (FSLY) share holdings?

The Form 4 shows several trusts holding Fastly shares associated with Bergman. These include a revocable trust where he is settlor, sole trustee, and sole beneficiary, as well as multiple remainder and grantor retained annuity trusts where he acts as trustee or investment advisor.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/09/2026 - 06:17 PM Learn about SEC filing dates

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)
03/05/2026

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	03/05/2026		S(1)		24,481	D	$20.54(2)	2,125,308	D
Class A Common Stock	03/05/2026		S(1)		6,598	D	$21.23(3)	2,118,710	D
Class A Common Stock								1,909,901	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								156,521	I	See Footnote(7)
Class A Common Stock								588,671	I	See Footnote(8)
Class A Common Stock								254,808	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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.09 to $21.07, 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 ranges set forth in footnotes (2) and (3) to this Form 4.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.10 to $21.41, inclusive.

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 PAB 2021 Remainder Trust, of which the reporting person is the investment advisor.

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 Per Artur Bergman Grantor Retained Annuity Trust No. 5, of which the reporting person is trustee.

Remarks:

	/s/ Tara Seracka, Attorney-in-Fact	03/09/2026
	** 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).
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.