John Costigan Form 4 FACTSET RESEARCH SYSTEMS / John Costigan ownership change

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

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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).

1. Name and Address of Reporting Person^*

Costigan John

(Last) (First) (Middle)

FACTSET RESEARCH SYSTEMS INC.

45 GLOVER AVENUE

(Street)

NORWALK CT 06850

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FACTSET RESEARCH SYSTEMS INC [ FDS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Chief Data Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/01/2024

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
Common Stock	11/01/2024		A		415(1)	A	$0	1,283.9415	D
Common Stock	11/01/2024		F		131(2)	D	$458.8	1,152.9415	D
Common Stock	11/01/2024		F		11(3)	D	$458.8	1,141.9415	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
Employee Stock Option (right to buy)	$458.8	11/01/2024		A		3,569		(4)	11/01/2034	Common Stock	3,569	$0	3,569	D

Explanation of Responses:

1. Represents common stock received upon the vesting on November 1, 2024, of performance share units ("PSUs") granted on November 1, 2021. Each PSU converted into 1.275 shares of common stock upon vesting based on the Company's performance during the three-fiscal year period beginning September 1, 2021 and ending August 31, 2024 (the "Performance Period") measured against performance goals established for the Performance Period based 50% on the Company's adjusted cumulative operating earnings and 50% on the Company's adjusted cumulative revenues during the Performance Period.

2. Represents the number of shares withheld to cover the cost of taxes upon vesting on November 1, 2024, of PSUs granted on November 1, 2021.

3. Represents the number of shares withheld to cover the cost of taxes upon vesting of restricted stock granted on November 1, 2019, which was previously reported. The restricted stock vests 20% annually on the anniversary date of the grant and is fully vested after five years.

4. Options vest 20% annually on the anniversary date of the grant and are fully vested after five years.

Remarks:

	/s/ JEFFREY GERSHOWITZ, Attorney in Fact for John Costigan	11/04/2024
	** 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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