[Form 4] Factset Research Systems Insider Trading Activity

Insider Trade Summary

Net Seller: 3,000 shares ($1,335,360)

Net Sell 3 txns

Insider Snow Frederick Philip

Role Chief Executive Officer

Sold 3,000 shs ($1.34M)

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (right to buy)	3,000	$0.00	--
Exercise	Common Stock	3,000	$152.28	$457K
Sale	Common Stock	3,000	$445.12	$1.34M

Holdings After Transaction: Employee Stock Option (right to buy) — 11,961 shares (Direct); Common Stock — 19,616.47 shares (Direct)

Footnotes (1)

1. This Transaction was effected pursuant to a Rule 10b5-1 Plan adopted by Mr. Snow on September 26, 2024, with an effective date of January 2, 2025, in order to facilitate his exercise of non-qualified stock options. Accordingly, Mr. Snow had no discretion with regard to the timing of the transaction. Options were granted on November 1, 2016 and vest ratably at 20% per year over five years upon the anniversary of the date of grant.

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).

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^*

Snow Frederick Philip

(Last) (First) (Middle)

C/O 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)

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

3. Date of Earliest Transaction (Month/Day/Year)
07/01/2025

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	07/01/2025		M		3,000	A	$152.28	19,616.4699	D
Common Stock	07/01/2025		S(1)		3,000	D	$445.12	16,616.4699	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)	$152.28	07/01/2025		M			3,000	(2)	11/01/2026	Common Stock	3,000	$0	11,961	D

Explanation of Responses:

1. This Transaction was effected pursuant to a Rule 10b5-1 Plan adopted by Mr. Snow on September 26, 2024, with an effective date of January 2, 2025, in order to facilitate his exercise of non-qualified stock options. Accordingly, Mr. Snow had no discretion with regard to the timing of the transaction.

2. Options were granted on November 1, 2016 and vest ratably at 20% per year over five years upon the anniversary of the date of grant.

Remarks:

	/s/ JILL CHAVARRIA, Attorney in Fact for Frederick Philip Snow	07/02/2025
	** 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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