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).

1. Name and Address of Reporting Person* KISLING RONALD W (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) Director 10% Owner X Officer (give title below) Other (specify below) Chief Financial Officer
	3. Date of Earliest Transaction (Month/Day/Year) 11/15/2023
	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	11/15/2023		M		57,500	A	(1)	517,721	D
Class A Common Stock	11/16/2023		S(2)		48,149	D	$16.24(3)	469,572	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
Performance rights	(1)	11/15/2023		M			57,500	(4)(5)	(4)(5)	Class A Common Stock	57,500	$0	172,500(6)	D

Explanation of Responses:

1. Reflects the conversion of previously granted performance-based restricted stock units (PRSUs). Each PRSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. 57,500 of the 230,000 PRSUs vested based on the achievement of a performance condition (Issuer's Class A Common Stock achieving a sixty-day consecutive trailing average closing price of $17.25 per share).

2. Shares sold to satisfy tax obligations in connection with the vesting of previously granted Restricted Stock Units and PRSUs.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.13 to $16.32. 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 footnote (3) to this Form 4.

4. One fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $17.25 per share (with the earliest such vesting date being November 15, 2023, including if the performance condition is satisfied before such date); one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $23.00 per share (with the earliest such vesting date being November 15, 2024, including if the performance condition is satisfied before such date);

5. one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $34.50 per share (with the earliest such vesting date being November 15, 2025, including if the performance condition is satisfied before such date);one fourth of the PRSUs will vest upon the Issuer's Class A Common Stock achieving a market price of $46.00 per share (with the earliest such vesting date being November 15, 2026, including if the performance condition is satisfied before such date). Any unvested tranche will be forfeited if the applicable market price is not achieved on or before September 6, 2027.

6. Represents the maximum number of shares remaining that may be issued pursuant to the PRSUs.

Remarks:

	/s/ Karen Greenstein, Attorney-in-Fact	11/17/2023
	** 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).
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