MSCI (MSCI) CFO logs small 450‑share sale under Rule 10b5-1 plan

Rhea-AI Filing Summary

MSCI Inc.'s Chief Financial Officer Andrew C. Wiechmann reported an open-market sale of 450 shares of common stock at $560 per share. After this transaction, he directly holds 22,544 shares. The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on September 3, 2025, indicating it was scheduled in advance rather than timed discretionarily.

Insights

Equity market and insider-trading analyst

Small, pre-planned CFO stock sale; routine and limited in size.

MSCI Inc.'s CFO, Andrew C. Wiechmann, executed an open-market sale of 450 common shares at $560 per share. Following the trade, he continues to directly hold 22,544 shares, so the disposition represents only a small portion of his visible equity stake.

The transaction was executed under a Rule 10b5-1 trading plan adopted on September 3, 2025. Such pre-arranged plans are designed to systematize trading and reduce the significance of short-term timing. With no derivative exercises and no additional transactions reported, this appears to be a routine liquidity event rather than a signal of changing fundamentals.

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^*

Wiechmann Andrew C.

(Last) (First) (Middle)

MSCI INC.

7 WORLD TRADE CENTER, 250 GREENWICH ST.

(Street)

NEW YORK NEW YORK 10007

(City) (State) (Zip)

UNITED STATES

(Country)

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

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	03/17/2026		S		450(1)	D	$560	22,544	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 effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 3, 2025.

Remarks:

	/s/ Cecilia Aza, attorney-in-fact	03/19/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What did MSCI (MSCI) CFO Andrew Wiechmann report in this Form 4?

He reported an open-market sale of 450 shares of MSCI common stock at $560 per share. After the transaction, he directly holds 22,544 shares, indicating he retains a substantial equity position in the company despite the small sale.

Was the MSCI CFO’s stock sale part of a Rule 10b5-1 trading plan?

Yes. The filing states the transaction was executed under a Rule 10b5-1 trading plan adopted on September 3, 2025. These plans pre-schedule trades, which typically reduces the significance of the transaction’s timing as an indicator of management’s near-term outlook.

How many MSCI shares does the CFO hold after this reported sale?

After selling 450 shares, the CFO directly holds 22,544 MSCI common shares. This shows the reported sale was relatively small compared with his remaining stake, suggesting it is more consistent with routine portfolio or liquidity management than a large position change.

What type of transaction did the MSCI Form 4 disclose?

The Form 4 disclosed a non-derivative transaction classified as an open-market sale of common stock. It involved 450 shares sold at $560 per share, with no associated option exercises, conversions, gifts, or tax-withholding entries reported in this filing.

Does this MSCI insider filing show any derivative securities activity?

No. The available data indicate no derivative transactions, exercises, or remaining derivative positions reported alongside this sale. The transaction summary shows only a single non-derivative open-market sale, simplifying interpretation as a straightforward, pre-planned stock disposition by the CFO.