Form 4 Filing for MSCI Inc. - Officer Sale of Common Stock

This filing details a transaction by Alvise J. Munari, Chief Product Officer of MSCI Inc., on April 24, 2026. Mr. Munari sold 9,960 shares of common stock at a weighted average price of $592.03, resulting in a post-transaction holding of 23,588 shares. An additional 40 shares were sold at $593.31, leaving a post-transaction balance of 23,548 shares. The sale was executed in multiple trades, with the reported price representing the weighted average. Mr. Munari has undertaken to provide further details upon request. This transaction is classified as a disposal of securities by an officer.