Fastly (FSLY) CFO Wong sells 9,907 shares, retains 1.24M holding

Rhea-AI Filing Summary

Fastly, Inc.’s CFO Richard Wong reported selling a total of 9,907 shares of Class A Common Stock in mid-May 2026. On May 19, he sold 6,315 shares at a reported price of $16.35 per share, and on May 18 he sold 3,592 shares at $16.85 per share.

A footnote explains that shares sold were used to satisfy tax obligations related to the vesting of previously granted Restricted Stock Units, indicating a compensation- and tax-driven transaction rather than a purely discretionary sale. After these sales, Wong directly holds 1,239,301 shares of Fastly Class A Common Stock.

Insider Trade Summary

Net Seller: 9,907 shares ($163,775)

Net Sell 2 txns

Insider WONG RICHARD

Role CFO

Sold 9,907 shs ($164K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	6,315	$16.35	$103K
Sale	Class A Common Stock	3,592	$16.85	$61K

Holdings After Transaction: Class A Common Stock — 1,239,301 shares (Direct, null)

Footnotes (1)

1. Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.76 to $16.85, 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 May 19, 2026: 6,315 shares Shares sold May 18, 2026: 3,592 shares Total shares sold: 9,907 shares +1 more

4 metrics

Shares sold May 19, 2026 6,315 shares Class A Common Stock at $16.35 per share

Shares sold May 18, 2026 3,592 shares Class A Common Stock at $16.85 per share

Total shares sold 9,907 shares Aggregate of May 18–19, 2026 transactions

Shares held after transactions 1,239,301 shares Direct holdings of Class A Common Stock after sales

Key Terms

Restricted Stock Units, weighted average price, open-market sale

3 terms

Restricted Stock Units financial

"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 sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 Insider Transactions: What Each Field Means →

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^*

WONG RICHARD

(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)
	CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026

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	05/18/2026		S(1)		3,592	D	$16.85(2)	1,245,616	D
Class A Common Stock	05/19/2026		S		6,315	D	$16.35	1,239,301	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 $16.76 to $16.85, 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	05/20/2026
	** 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)

FAQ

What insider transaction did Fastly (FSLY) disclose for CFO Richard Wong?

Fastly disclosed that CFO Richard Wong sold a total of 9,907 shares of Class A Common Stock in mid-May 2026. These sales were reported as open-market transactions and are associated in part with tax obligations from vesting Restricted Stock Units.

On what dates did Fastly (FSLY) CFO Richard Wong sell shares and at what prices?

Richard Wong sold Fastly shares on May 18 and May 19, 2026. He sold 3,592 shares at $16.85 per share on May 18 and 6,315 shares at $16.35 per share on May 19, according to the Form 4 filing.

How many Fastly (FSLY) shares does CFO Richard Wong hold after the reported sales?

After the reported transactions, CFO Richard Wong directly holds 1,239,301 shares of Fastly Class A Common Stock. This post-transaction figure from the Form 4 shows that the 9,907 shares sold represent a small portion of his overall reported holdings.

Were Fastly (FSLY) CFO Richard Wong’s share sales related to tax obligations?

Yes. A Form 4 footnote states that shares were sold to satisfy tax obligations arising from the vesting of previously granted Restricted Stock Units. This indicates that at least part of the transactions were driven by tax requirements tied to equity compensation.

How is the sale price described in Fastly (FSLY) CFO Richard Wong’s Form 4 filing?

One transaction’s sale price is described as a weighted average price. A footnote explains that shares were sold in multiple trades at prices ranging from $16.76 to $16.85, and detailed breakdowns are available from the company or SEC staff upon request.