Fastly CTO Bergman sells 300 shares under plan

Fastly’s CTO Artur Bergman reported a small, pre-planned trust sale of 300 shares under a Rule 10b5-1 trading plan, while retaining large direct and indirect holdings.

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) director and Chief Technology Officer Artur Bergman reported a small sale of Class A common stock on September 8, 2026. A revocable trust associated with him sold 300 shares at a weighted average price of $22.51 per share, with individual trades between $22.50 and $22.51. The sale was made under a Rule 10b5-1 trading plan adopted on June 4, 2026. After this sale, the revocable trust holds 1,639,745 shares indirectly, and Bergman also holds 1,896,249 shares directly, in addition to other indirect holdings through several trusts where he serves as investment advisor or trustee.

Insider Trade Summary 10b5-1

Net Seller: 300 shares

Net Sell 7 txns

Insider Bergman Artur

Role Chief Technology Officer

Sold 300 shs ($7K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	300	$22.51	$7K
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock F4	--	--	--
holding	Class A Common Stock F5	--	--	--
holding	Class A Common Stock F6	--	--	--
holding	Class A Common Stock F7	--	--	--
holding	Class A Common Stock F8	--	--	--

Holdings After Transaction: Class A Common Stock — 1,639,745 shares (Indirect, See Footnote.); Class A Common Stock — 1,896,249 shares (Direct); Class A Common Stock — 1,949,691 shares (Indirect, See Footnote)

Footnotes (8)

1. F1. The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 4, 2026.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.50 to $22.51, 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. F3. The shares are held by The Per Artur Bergman Revocable Trust, of which the reporting person is settlor, sole trustee, and sole beneficiary.
4. F4. 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. F5. 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. F6. The shares are held by The PAB 2021 Remainder Trust, of which the reporting person is the investment advisor.
7. F7. The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 4, of which the reporting person is trustee.
8. F8. The shares are held by The Per Artur Bergman Grantor Retained Annuity Trust No. 5, of which the reporting person is trustee.

Key Figures

Shares sold: 300 shares Weighted average sale price: $22.51 per share Sale price range: $22.50–$22.51 per share +3 more

6 metrics

Shares sold 300 shares Class A common stock sold on September 8, 2026 by a revocable trust associated with Artur Bergman

Weighted average sale price $22.51 per share Average price for the 300 shares sold on September 8, 2026

Sale price range $22.50–$22.51 per share Price range for multiple sale transactions on September 8, 2026

Indirect revocable trust holdings after sale 1,639,745 shares Shares of Class A common stock held by The Per Artur Bergman Revocable Trust after the reported sale

Direct holdings after transactions 1,896,249 shares Shares of Class A common stock held directly by Artur Bergman after the reported transactions

Net shares sold in this Form 4 300 shares Net result of reported buy and sell transactions in this filing

Key Terms

Rule 10b5-1 trading plan, Revocable Trust, Grantor Retained Annuity Trust

3 terms

Rule 10b5-1 trading plan regulatory

"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 4, 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Revocable Trust financial

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

A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.

Grantor Retained Annuity Trust financial

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

A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.

FAQ

What insider transaction did Fastly (FSLY) report for Artur Bergman on September 8, 2026?

Fastly reported that Artur Bergman, its Chief Technology Officer and a director, had a revocable trust sell 300 shares of Class A common stock on September 8, 2026 at a weighted average price of $22.51 per share.

Was the September 8, 2026 FSLY insider sale by Artur Bergman under a Rule 10b5-1 plan?

Yes. The filing states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted by Artur Bergman on June 4, 2026, indicating the trades were pre-arranged under that plan.

What price range did the 300 Fastly (FSLY) shares sell for in Artur Bergman’s Form 4?

The 300 Class A shares were sold at a weighted average price of $22.51 per share, in multiple transactions at prices ranging from $22.50 to $22.51, inclusive, as disclosed in the Form 4 footnote.

How many Fastly (FSLY) shares does Artur Bergman hold directly after the reported transaction?

After the reported transaction, Artur Bergman holds 1,896,249 shares of Fastly Class A common stock in a direct holding, according to the Form 4 entry summarizing his direct ownership.

How many Fastly (FSLY) shares does the revocable trust associated with Artur Bergman hold after the sale?

Following the September 8, 2026 sale, The Per Artur Bergman Revocable Trust holds 1,639,745 shares of Fastly Class A common stock, reported as an indirect holding for which Bergman is settlor, sole trustee, and sole beneficiary.

What other indirect Fastly (FSLY) holdings related to Artur Bergman are mentioned in the Form 4?

The Form 4 notes additional indirect holdings in remainder trusts and Grantor Retained Annuity Trusts where Artur Bergman serves as investment advisor or trustee, but it does not state specific share counts for those entities in this filing.

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Available on EDGAR 09/10/2026 - 04:51 PM Accepted by SEC EDGAR 09/10/2026 - 04:51 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 CALIFORNIA 94107

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	09/08/2026		S(1)		300	D	$22.51(2)	1,639,745	I	See Footnote.(3)
Class A Common Stock								1,896,249	D
Class A Common Stock								840,005	I	See Footnote(4)
Class A Common Stock								109,686	I	See Footnote(5)
Class A Common Stock								156,521	I	See Footnote(6)
Class A Common Stock								588,671	I	See Footnote(7)
Class A Common Stock								254,808	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 4, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.50 to $22.51, 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 PAB 2021 Remainder Trust, of which the reporting person is the investment advisor.

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

Remarks:

	/s/ Tara Seracka, Attorney-in-Fact	09/10/2026
	** 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.
* Form 4: SEC 1474 (03-26)