Fastly: Bergman trust to sell 138,895 shares

Trust associated with Fastly insider files Rule 144 notice to sell 138,895 common shares valued at about $3.2 million.

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) received a Rule 144 notice from the Per Artur Bergman Revocable Trust covering a proposed sale of 138,895 shares of common stock. The filing lists an aggregate market value of $3,216,808.20 for these shares and states that 159,300,000 shares of common stock were outstanding as of September 14, 2026.

The shares to be sold consist of 24,824 shares acquired upon vesting of restricted stock units and performance stock units on November 15, 2025 and 114,071 founder shares acquired on March 10, 2011. The notice is dated September 14, 2026 and signed by Artur Bergman.

Key Figures

Shares to be sold under Rule 144: 138,895 shares Aggregate market value of proposed sale: $3,216,808.20 Shares outstanding: 159,300,000 shares +4 more

7 metrics

Shares to be sold under Rule 144 138,895 shares Proposed sale for the Per Artur Bergman Revocable Trust

Aggregate market value of proposed sale $3,216,808.20 Value of 138,895 Fastly common shares covered by the notice

Shares outstanding 159,300,000 shares Fastly common stock outstanding as of September 14, 2026

RSU/PSU shares to be sold 24,824 shares Acquired upon vesting on November 15, 2025

Founder shares to be sold 114,071 shares Originally acquired on March 10, 2011

Past sale on September 3, 2026 36,095 shares for $750,302.99 10b5-1 sale by the Per Artur Bergman Revocable Trust

Past sale on August 18, 2026 32,387 shares for $926,268.20 Sale by Artur Bergman

Key Terms

Rule 144, restricted stock units, performance stock units, 10b5-1

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

restricted stock units financial

"acquired upon the vesting of restricted stock units and performance stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

performance stock units financial

"acquired upon the vesting of restricted stock units and performance stock units"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

10b5-1 regulatory

"10b5-1 Sales for THE PER ARTUR BERGMAN REVOCABLE TRUST"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

FAQ

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

How many Fastly (FSLY) shares are covered by this Rule 144 notice?

The notice covers 138,895 shares of Fastly common stock, with an aggregate market value of $3,216,808.20, to be sold for the account of the Per Artur Bergman Revocable Trust.

What types of Fastly (FSLY) shares are being sold under this Form 144?

The shares include 24,824 shares acquired upon vesting of restricted stock units and performance stock units on November 15, 2025, and 114,071 founder shares originally acquired on March 10, 2011.

How many Fastly (FSLY) shares were outstanding as referenced in the filing?

The filing states that 159,300,000 shares of Fastly common stock were outstanding as of September 14, 2026; this is a baseline figure for the issuer’s capital structure, not the amount being sold.

What recent Fastly (FSLY) share sales are disclosed for the Per Artur Bergman Revocable Trust?

Disclosed 10b5-1 sales by the trust include 36,095 shares sold on September 3, 2026 for $750,302.99 and 31,687 shares sold on August 19, 2026 for $783,350.17, among other smaller transactions.

Are any Fastly (FSLY) sales by Artur Bergman personally shown in the last three months?

Yes. The filing lists sales by Artur Bergman of 32,387 shares on August 18, 2026 for $926,268.20, 6,225 shares on August 31, 2026 for $143,175.00, and 851 shares on August 27, 2026 for $20,492.08.

What period of RSU and PSU vesting is associated with these Fastly (FSLY) shares?

The filing notes that the securities to be sold were acquired upon vesting of restricted stock units and performance stock units during the period from November 15, 2025 through May 15, 2026.

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

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Available on EDGAR 09/14/2026 - 04:47 PM Accepted by SEC EDGAR 09/14/2026 - 04:39 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001769490
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	FASTLY, INC.
SEC File Number	001-38897
Address of Issuer	475 Brannan Street, Suite 300 San Francisco CALIFORNIA 94107
Phone	8444327859
Name of Person for Whose Account the Securities are To Be Sold	PER ARTUR BERGMAN TRUST REVOCABLE TRUST
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	138895	3216808.20	159300000	09/14/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/15/2025	RSU/PSU	Issuer			24824	11/15/2025	N/A
Common	03/10/2011	Founders Shares	Issuer			114071	03/10/2011	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for THE PER ARTUR BERGMAN REVOCABLE TRUST 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	09/09/2026	8960	203641.98
10b5-1 Sales for THE PER ARTUR BERGMAN REVOCABLE TRUST 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	09/08/2026	300	6752.01
10b5-1 Sales for THE PER ARTUR BERGMAN REVOCABLE TRUST 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	09/03/2026	36095	750302.99
PER ARTUR BERGMAN 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/31/2026	6225	143175.00
PER ARTUR BERGMAN 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/27/2026	851	20492.08
10b5-1 Sales for THE PER ARTUR BERGMAN REVOCABLE TRUST 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/19/2026	31687	783350.17
PER ARTUR BERGMAN 475 Brannan Street, Suite 300 San Francisco CA 94107	Common	08/18/2026	32387	926268.20

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units and performance stock units during the period of 11/15/2025 through 5/15/2026.
Date of Notice	09/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Artur Bergman
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)