Msci 4: Wiechmann Andrew C. bought 1,825 shares of Common Stock at… (Feb 3, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-01-30 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: MSCI Inc. (MSCI) CIK: 0001408198 --- Reporting Owner --- Name: Wiechmann Andrew C. CIK: 0001769683 Role: Officer (Chief Financial Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-01-30 | Code: A (Grant or award) Shares: +1,825 | Price: $0.00 Shares Owned After: 23,464 | Ownership: D (Direct) Footnotes: [F1] Restricted stock units ("RSUs") that are expected to vest and convert to shares on the third anniversary of the grant date. The final number of shares issued upon vesting will be between 100% and 130% of the target number of RSUs based on achievement of a performance metric for the for the 2026 fiscal year (January 1, 2026 through December 31, 2026). --- Footnotes (Complete Index) --- F1: Restricted stock units ("RSUs") that are expected to vest and convert to shares on the third anniversary of the grant date. The final number of shares issued upon vesting will be between 100% and 130% of the target number of RSUs based on achievement of a performance metric for the for the 2026 fiscal year (January 1, 2026 through December 31, 2026). --- Signature --- /s/ /s/ Cecilia Aza, attorney-in-fact (2026-02-03)