[Form 4] FACTSET RESEARCH SYSTEMS INC Insider Trading Activity

FactSet Research Systems director Laurie Siegel reported equity awards in the form of stock units and options.

Rhea-AI Filing Summary

FactSet Research Systems director Laurie Siegel reported equity awards in the form of stock units and options. On 01/15/2026, she received 626 shares of common stock as a grant of restricted stock units at a price of $0 per share, bringing her directly held common stock to 1,663 shares after the transaction. She also received a non-employee director stock option covering 1,531 shares of common stock at an exercise price of $289.68 per share, with 1,531 derivative securities held directly after the grant.

The restricted stock units granted to non-employee directors cliff vest 100% on the first anniversary of the date of grant. The options likewise cliff vest 100% on the first anniversary of the grant date, become exercisable on 01/15/2027, and expire on 01/15/2033, providing long-term equity-based compensation linked to FactSet’s share performance.

Insider Trade Summary

Grant/Award: 2,157 shares

Grant/Award 2 txns

Insider SIEGEL LAURIE

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Non-Employee Director Stock Option (right to buy)	1,531	$0.00	$0.00
Grant/Award	Common Stock	626	$0.00	$0.00

Holdings After Transaction: Non-Employee Director Stock Option (right to buy) — 1,531 contracts (Direct); Common Stock — 1,663 shares (Direct)

Footnotes (2)

1. F1. Restricted stock units granted to non-employee Directors cliff vest 100% on the first anniversary of the date of grant.
2. F2. Options granted to non-employee Directors cliff vest 100% on the first anniversary of the date of grant.

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Accepted by SEC EDGAR 01/20/2026 - 05:35 PM Learn about SEC filing dates

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^*

SIEGEL LAURIE

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/15/2026

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
Common Stock	01/15/2026		A		626(1)	A	$0	1,663	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
Non-Employee Director Stock Option (right to buy)	$289.68	01/15/2026		A		1,531		01/15/2027(2)	01/15/2033	Common Stock	1,531	$0	1,531	D

Explanation of Responses:

1. Restricted stock units granted to non-employee Directors cliff vest 100% on the first anniversary of the date of grant.

2. Options granted to non-employee Directors cliff vest 100% on the first anniversary of the date of grant.

Remarks:

	/s/ WINNIFRED LEWIS, Attorney in Fact for Laurie Siegel	01/20/2026
	** 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.