Fastly (FSLY) CEO sells 14,797 shares under Rule 10b5-1 trading plan

Rhea-AI Filing Summary

Fastly, Inc. CEO Charles Lacey Compton III reported selling a total of 14,797 shares of Class A common stock in open‑market transactions on February 19, 2026. The sales were made at weighted average prices of $18.26, $19.52, and $20.11, across price ranges from $17.96 to $20.20, as disclosed in the footnotes.

The transactions were executed under a pre‑arranged Rule 10b5-1 trading plan adopted on August 27, 2025. Following these sales, the CEO directly holds 584,519 shares of Fastly Class A common stock.

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

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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^*

Compton Charles Lacey III

(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)
	CEO

3. Date of Earliest Transaction (Month/Day/Year)
02/19/2026

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	02/19/2026		S(1)		8,097	D	$18.26(2)	591,219	D
Class A Common Stock	02/19/2026		S(1)		5,400	D	$19.52(3)	585,819	D
Class A Common Stock	02/19/2026		S(1)		1,300	D	$20.11(4)	584,519	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 sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.96 to $18.95, 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) to (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 $18.96 to $19.95, inclusive.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.02 to $20.20, inclusive.

Remarks:

	/s/ Tara Seracka, Attorney-in-Fact	02/23/2026
	** 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.
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FAQ

How many Fastly (FSLY) shares did the CEO sell in this Form 4?

The CEO sold a total of 14,797 Fastly Class A shares in this Form 4. The sales occurred in three open-market transactions on February 19, 2026, and were reported as part of a pre-arranged Rule 10b5-1 trading plan.

At what prices did Fastly (FSLY) CEO Compton sell his shares?

The CEO’s reported weighted average sale prices were $18.26, $19.52, and $20.11 per share. Footnotes state the underlying trades occurred in ranges from $17.96 up to $20.20 per share across multiple transactions on February 19, 2026.

Was the Fastly (FSLY) CEO’s share sale under a Rule 10b5-1 plan?

Yes, the filing states the sales were effected under a Rule 10b5-1 trading plan. The reporting person adopted this plan on August 27, 2025, allowing pre-scheduled trades independent of later short-term market developments or subsequent company-specific news.

How many Fastly (FSLY) shares does the CEO own after these transactions?

After the reported sales, the CEO directly owns 584,519 shares of Fastly Class A common stock. This figure reflects ownership immediately following the final February 19, 2026 transaction reported in the Form 4, according to the totals disclosed in the filing.

What type of security did the Fastly (FSLY) CEO sell in the Form 4?

All reported transactions involve Fastly’s Class A common stock. The Form 4 lists three separate open-market sale entries for this security type on February 19, 2026, each with its own share amount and weighted average price disclosure.

How many separate transactions are reported in this Fastly (FSLY) Form 4?

The filing reports three separate sale transactions in Fastly Class A common stock. Each line item shows distinct share amounts and weighted average prices, and all occurred on February 19, 2026 as open-market or private sale transactions.