Washington, D.C. 20549
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 18, 2023

(Exact name of Registrant as Specified in Its Charter)

(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 York10007
(Address of Principal Executive Offices) (Zip Code)
(212) 804-3900
(Registrant's telephone number, including area code)

(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 classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $0.01 per shareMSCINew 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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On August 18, 2023, Jennifer H. Mak informed MSCI Inc. (“MSCI” or the “Company”) of her intention to resign as Global Controller, Head of Finance Operations and principal accounting officer of the Company, to pursue another opportunity. Her resignation was not the result of any disagreement with the Company on any matter relating to the Company’s financial statements, internal controls, operations, policies, or practices. Ms. Mak will remain with the Company through September 7, 2023 to help facilitate the transition of her responsibilities.

In connection with Ms. Mak’s resignation, Andrew C. Wiechmann, the Company’s Chief Financial Officer, will assume the responsibilities of principal accounting officer on an interim basis, effective August 24, 2023. Mr. Wiechmann’s biographical information is set forth in the Company’s Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission on February 10, 2023, and such information is incorporated herein by reference. No new compensatory arrangements will be entered into with Mr. Wiechmann in connection with his assuming the responsibilities as the Company’s interim principal accounting officer.


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.

Date: August 24, 2023
/s/ Henry A. Fernandez
Henry A. Fernandez
Chairman and Chief Executive Officer