Fastly accounting chief sells 37K shares for taxes

Fastly’s principal accounting officer sold shares to cover tax obligations from RSU vesting, retaining a substantial direct holding afterward.

Rhea-AI Filing Summary

Fastly, Inc. (FSLY) reported that Principal Accounting Officer Jeffrey Ford sold 37,091 shares of Class A Common Stock on September 16, 2026, at a weighted average price of about $23.84 per share in open market transactions. According to the company’s disclosure, these shares were sold to satisfy tax obligations arising from the vesting of previously granted Restricted Stock Units, and Ford held 295,693 shares directly after the sale. No Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Net Seller: 37,091 shares

Net Sell 1 txn

Insider Ford Jeffrey

Role Principal Accounting Officer

Sold 37,091 shs ($884K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2	37,091	$23.84	$884K

Holdings After Transaction: Class A Common Stock — 295,693 shares (Direct)

Footnotes (2)

1. F1. Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.84 to $24.04, 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.

Key Figures

Shares sold: 37,091 shares Weighted average sale price: $23.84 per share Sale price range: $23.84–$24.04 per share +2 more

5 metrics

Shares sold 37,091 shares Class A Common Stock sold by Principal Accounting Officer on September 16, 2026

Weighted average sale price $23.84 per share Open market transactions on September 16, 2026

Sale price range $23.84–$24.04 per share Range of prices for multiple transactions on September 16, 2026

Shares held after transaction 295,693 shares Direct holdings of Jeffrey Ford following the sale

Rule 10b5-1 plan status No Rule 10b5-1 plan reported Plan-status checkbox is not marked as an affirmative trading plan

Key Terms

Restricted Stock Units, weighted average price, open market transactions, Principal Accounting Officer

4 terms

Restricted Stock Units financial

"tax obligations in connection with the vesting of previously granted Restricted 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.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

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.

open market transactions financial

"Sale in open market or private transaction"

Open market transactions are the buying and selling of a company’s shares or other securities conducted on public exchanges or through the wider market rather than through private deals or negotiated placements. They matter to investors because these trades change supply and demand in real time—like shoppers affecting a store’s inventory—and so can move prices, signal management or investor sentiment, affect liquidity, and alter ownership stakes that influence future returns and risk.

Principal Accounting Officer financial

"Ford is the company’s Principal Accounting Officer"

The Principal Accounting Officer is the person responsible for making sure a company's financial records are accurate and follow the rules. They play a key role in preparing financial reports that show how well the company is doing. This helps investors, managers, and regulators trust the company's financial information.

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 37,091 shares of Class A Common Stock on September 16, 2026 in open market transactions, with shares sold primarily to satisfy tax obligations related to vesting Restricted Stock Units.

At what price were the Fastly (FSLY) shares sold by Jeffrey Ford?

The reported price is a weighted average of $23.84 per share. The disclosure states the shares were sold in multiple transactions at prices ranging from $23.84 to $24.04 per share, inclusive.

How many Fastly (FSLY) shares does Jeffrey Ford hold after this Form 4 transaction?

After the reported sale, Jeffrey Ford directly holds 295,693 shares of Fastly Class A Common Stock, according to the disclosure of post-transaction ownership.

Why did Fastly’s principal accounting officer sell shares in this Form 4 filing?

The company reports the shares were sold to satisfy tax obligations arising from the vesting of previously granted Restricted Stock Units, rather than as a discretionary sale of existing holdings.

Was the Fastly (FSLY) insider sale made under a Rule 10b5-1 trading plan?

No. The disclosure indicates no Rule 10b5-1 trading plan is reported for this transaction, and there is no footnote stating that the sale was made pursuant to such a plan.

Does the Fastly (FSLY) filing provide detailed pricing for each trade in the insider sale?

The filing reports a weighted average price and a range of $23.84 to $24.04 per share. It also states that full information on the number of shares sold at each separate price will be provided to interested parties upon request.

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 09/18/2026 - 04:25 PM Accepted by SEC EDGAR 09/18/2026 - 04:25 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).

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)
09/16/2026

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	09/16/2026		S(1)		37,091	D	$23.84(2)	295,693	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. 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 $23.84 to $24.04, 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.

Remarks:

	/s/ Tara Seracka, Attorney-in-Fact	09/18/2026
	** 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)