[Form 4] FACTSET RESEARCH SYSTEMS INC Insider Trading Activity

Rhea-AI Filing Summary

Christopher McLoughlin, Chief Legal Officer and reporting person for FactSet Research Systems Inc. (FDS), reported purchases of the issuer's common stock on 09/23/2025. The Form 4 shows a purchase of 334.62 shares at a weighted-average price of $296.18 and an additional purchase of 3 shares at $297.66, leaving 3,445.62 shares beneficially owned directly following the transactions. The form was signed by an attorney-in-fact on 09/25/2025 and notes the trades were executed in multiple fills with prices ranging $296.18–$296.19.

Positive

• Insider purchase disclosed showing the Chief Legal Officer added 337.62 shares on 09/23/2025
• Clear pricing disclosure with a weighted-average price of $296.18 and documented price range $296.18–$296.19
• Post-transaction ownership reported as 3,445.62 shares held directly

Negative

• None.

Insights

Corporate Governance Expert

TL;DR: Insider purchases by the Chief Legal Officer increase direct ownership modestly and show personal investment in the company.

The Form 4 discloses routine open-market purchases by Christopher McLoughlin, identified as Chief Legal Officer. The filings show acquisition of 337.62 total shares executed on a single date with a weighted-average price disclosed and precise post-transaction beneficial ownership reported. The filing is properly executed via attorney-in-fact and includes the required price explanation. From a governance standpoint, the report meets Section 16 disclosure norms and provides transparency on insider activity.

Securities Analyst

TL;DR: Small-scale insider buy disclosed with exact share counts and weighted-average price; disclosure is clear but not materially transformative.

The transaction details are explicit: 334.62 shares at a weighted-average $296.18 and 3 shares at $297.66, resulting in total direct beneficial ownership of 3,445.62 shares. The inclusion of a range for trade prices and the offer to provide trade-level details on request adds useful transparency. The filing does not include derivative activity or other compensatory arrangements.

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
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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^*

McLoughlin Christopher

(Last) (First) (Middle)

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 Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/23/2025

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	09/23/2025		P		334.62	A	$296.18(1)	3,442.62	D
Common Stock	09/23/2025		P		3	A	$297.66	3,445.62	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

Explanation of Responses:

1. 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.

Remarks:

	/s/ WINNIFRED LEWIS, Attorney in Fact for Christopher McLoughlin	09/25/2025
	** 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.
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.

FAQ

What transactions did Christopher McLoughlin report on Form 4 for FDS?

He reported purchases on 09/23/2025 of 334.62 shares at a weighted-average price of $296.18 and 3 shares at $297.66.

How many shares does McLoughlin beneficially own after the reported trades?

The Form 4 reports 3,445.62 shares beneficially owned directly following the transactions.

Who signed the Form 4 for McLoughlin and when?

The form was signed by /s/ Winnifred Lewis, Attorney in Fact for Christopher McLoughlin on 09/25/2025.

Are the reported trade prices exact or averaged?

The filing states the first transaction price is a weighted-average ($296.18) from multiple trades, with prices ranging $296.18–$296.19; the other trade is at $297.66.

Does the Form 4 report any derivative or option transactions?

No. Table II for derivative securities contains no entries; only non-derivative common stock purchases are reported.