Christopher McLoughlin - 23 Sep 2025 Form 4 Insider Report for FACTSET RESEARCH SYSTEMS INC (FDS)

Role: Chief Legal Officer
Signature: /s/ WINNIFRED LEWIS, Attorney in Fact for Christopher McLoughlin
Issuer symbol: FDS
Transactions as of: 23 Sep 2025
Net transactions value: +$100,001
Form type: 4
Filing time: 25 Sep 2025, 16:20:36 UTC
Previous filing: 03 Dec 2024
Next filing: 05 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
McLoughlin Christopher	Chief Legal Officer	45 GLOVER AVENUE, NORWALK	/s/ WINNIFRED LEWIS, Attorney in Fact for Christopher McLoughlin	25 Sep 2025	0002046816

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FDS	Common Stock	Purchase	$99,108	+335	+11%	$296.18	3,443	23 Sep 2025	Direct	F1
transaction	FDS	Common Stock	Purchase	$893	+3	+0.09%	$297.66	3,446	23 Sep 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This transaction was executed in multiple trades with purchase prices ranging from $296.18 to $296.19. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.