[Form 4] MSCI, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Linda H. Riefler, a director of MSCI Inc. (MSCI), reported a non-derivative acquisition of 20,583 common shares on 08/29/2025. The shares were issued at no cash price as part of MSCI's dividend payment and credited under the MSCI Inc. Non-Employee Directors Deferral Plan. Under the deferral election, Riefler has chosen to postpone receipt of the shares until the 60th day after her separation from service as a director. The Form 4 was signed on behalf of the reporting person by an attorney-in-fact on 09/02/2025.

Insights

Corporate Governance Expert

TL;DR: Director received dividend shares deferred under the company's non-employee director plan, indicating standard compensation practice.

The reported transaction is a routine, non-cash issuance of 20,583 common shares to a director under MSCI's Non-Employee Directors Deferral Plan. Such deferred-share elections are common for aligning director compensation with shareholder outcomes and do not reflect a market purchase or sale. There is no exercise price, no derivative instrument involved, and the report discloses the deferral timing mechanism (60th day after separation). From a governance perspective, this is procedural disclosure of compensation mechanics rather than an operational or financial change for MSCI.

Securities Compliance Analyst

TL;DR: Form 4 properly documents an in-kind dividend issuance and deferral election; disclosure appears complete for the transaction described.

The filing documents an acquisition code 'A' for 20,583 shares at $0 price arising from a dividend and notes the deferral provision. The form includes the reporting person's role (Director), the transaction date (08/29/2025), and an attorney-in-fact signature on 09/02/2025. For compliance review, key elements—transaction code, amount, ownership form (direct), and the plan-based deferral explanation—are present. No amendments or additional filings are indicated.

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).

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^*

RIEFLER LINDA H

(Last) (First) (Middle)

MSCI INC.

7 WORLD TRADE CENTER, 250 GREENWICH ST.

(Street)

NEW YORK NY 10007

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MSCI Inc. [ MSCI ]

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)
08/29/2025

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	08/29/2025		A		6(1)	A	$0	20,583	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. Shares acquired by the Reporting Person in connection with MSCI Inc.'s payment of a dividend. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the 60th day after such Reporting Person's "separation from service" as a director.

Remarks:

	/s/ Cecilia Aza, attorney-in-fact	09/02/2025
	** 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).
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