Fastly accounting chief sells 45,832 shares

Fastly, Inc. (FSLY) reported that its Principal Accounting Officer, Jeffrey Ford, sold a total of 45,832 shares of Class A common stock on September 17, 2026 in three open-market transactions at weighted average prices of $23.57, $24.58, and $25.37 per share.

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) reported that its Principal Accounting Officer, Jeffrey Ford, sold a total of 45,832 shares of Class A common stock on September 17, 2026 in three open-market transactions at weighted average prices of $23.57, $24.58, and $25.37 per share.

The sales were carried out under a Rule 10b5-1 trading plan adopted by the reporting person on May 26, 2026, with each transaction executed across multiple trades within stated price ranges.

Insider Trade Summary 10b5-1

Net Seller: 45,832 shares

Net Sell 3 txns

Insider Ford Jeffrey

Role Principal Accounting Officer

Sold 45,832 shs ($1.13M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2	2,000	$23.57	$47K
Sale	Class A Common Stock F1, F3	37,494	$24.58	$922K
Sale	Class A Common Stock F1, F4	6,338	$25.37	$161K

Holdings After Transaction: Class A Common Stock — 249,861 shares (Direct)

Footnotes (4)

1. F1. The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 26, 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 $22.98 to $23.93, 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), (3) and (4) 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 $23.99 to $24.97, inclusive.
4. F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.99 to $25.72, inclusive.

Key Figures

Total shares sold: 45,832 shares Shares sold at $23.57: 2,000 shares Shares sold at $24.58: 37,494 shares +2 more

5 metrics

Total shares sold 45,832 shares Class A common stock sales by Principal Accounting Officer on September 17, 2026

Shares sold at $23.57 2,000 shares Weighted average price $23.57; trades ranged from $22.98 to $23.93 on September 17, 2026

Shares sold at $24.58 37,494 shares Weighted average price $24.58; trades ranged from $23.99 to $24.97 on September 17, 2026

Shares sold at $25.37 6,338 shares Weighted average price $25.37; trades ranged from $24.99 to $25.72 on September 17, 2026

Rule 10b5-1 plan adoption date May 26, 2026 Adoption date of trading plan under which the September 17, 2026 sales were effected

Key Terms

Rule 10b5-1 trading plan, weighted average price

2 terms

Rule 10b5-1 trading plan regulatory

"The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"

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.

weighted average price financial

"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

FAQ

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

What insider transaction did Fastly (FSLY) disclose for Jeffrey Ford?

Fastly disclosed that Principal Accounting Officer Jeffrey Ford sold a total of 45,832 shares of Class A common stock on September 17, 2026 in three open-market transactions at weighted average prices between about $23.57 and $25.37 per share.

Were Jeffrey Ford’s FSLY share sales made under a Rule 10b5-1 plan?

Yes. The filing states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 26, 2026, indicating the trades were pre-arranged under that plan.

How many Fastly (FSLY) shares did Jeffrey Ford sell in each transaction?

On September 17, 2026, Jeffrey Ford sold 2,000 shares at a weighted average price of $23.57, 37,494 shares at $24.58, and 6,338 shares at $25.37, all of Fastly’s Class A common stock.

What price ranges applied to Jeffrey Ford’s FSLY stock sales?

The filing notes weighted average prices. The 2,000 shares were sold between $22.98 and $23.93; 37,494 shares between $23.99 and $24.97; and 6,338 shares between $24.99 and $25.72, all on September 17, 2026.

What is Jeffrey Ford’s role at Fastly (FSLY) in this insider filing?

Jeffrey Ford is identified in the filing as an officer of Fastly, serving as its Principal Accounting Officer, and the reported transactions involve his holdings of Class A common stock.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/21/2026 - 04:46 PM Accepted by SEC EDGAR 09/21/2026 - 04:45 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^*

Ford Jeffrey

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Principal Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026

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	09/17/2026		S(1)		2,000	D	$23.57(2)	293,693	D
Class A Common Stock	09/17/2026		S(1)		37,494	D	$24.58(3)	256,199	D
Class A Common Stock	09/17/2026		S(1)		6,338	D	$25.37(4)	249,861	D

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 May 26, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.98 to $23.93, 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), (3) and (4) 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 $23.99 to $24.97, inclusive.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.99 to $25.72, inclusive.

Remarks:

	/s/ Tara Seracka, Attorney-in-Fact	09/21/2026
	** 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)