UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 25, 2025

MSCI Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware

001-33812

13-4038723

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

7 World Trade Center,

250 Greenwich Street, 49th Floor,

New York,

New York

10007

(Address of Principal Executive Offices) (Zip Code)

(212) 804-3900

(Registrant's telephone number, including area code)

NOT APPLICABLE

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	MSCI	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On October 28, 2025, MSCI Inc. (the “Registrant”) released financial information with respect to its third quarter ended September 30, 2025. A copy of the press release containing this information is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the “Report”).

The Registrant’s press release contains certain non-GAAP financial measures. Definitions of each non-GAAP financial measure, additional information about why management believes such non-GAAP measures are meaningful and reconciliations of these non-GAAP financial measures to the comparable GAAP financial measures are also contained in Exhibit 99.1.

The information furnished under Item 2.02 of this Report, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 8.01 Other Events.

On October 25, 2025, the Board of Directors of the Registrant authorized a new share repurchase program for the repurchase of up to an aggregate of $3.0 billion of its common stock. This new authorization supersedes and replaces the Registrant’s prior share repurchase program authorized on October 28, 2024.

The timing, price and amount of repurchases will depend on market conditions, available capital resources, applicable securities laws and other factors. Repurchases may be made from time to time through one or more open market transactions or privately negotiated transactions, including, but not limited to, accelerated share repurchase transactions, trading plans or derivative transactions. The authorization may be modified, suspended or terminated at any time.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.


Exhibit No.			Description
Exhibit 99.1			Press Release of the Registrant, dated O ctober 2 8 , 2025, containing financial information for the thir d quarter ended September 30, 2025.
Exhibit 104			Cover Page Interactive Data File (embedded in the cover page formatted in Inline XBRL).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


	MSCI Inc.


Date: October 28, 2025	By:	/s/ Henry A. Fernandez
	Name:	Henry A. Fernandez
	Title:	Chairman and Chief Executive Officer

MSCI Inc. 8-K