Morgan Stanley Announces Public Offering of its Remaining Ownership Interest in MSCI Inc.

Morgan Stanley (NYSE: MS) and MSCI Inc. (NYSE: MXB) announced today that Morgan Stanley is commencing a secondary offering of all of its remaining MSCI Inc. shares. The offering will consist of 27,708,653 shares of MSCI Inc. class A common stock, par value $0.01 per share. MSCI Inc. will not receive any of the proceeds from the sale of the class A common stock.

Morgan Stanley is serving as sole book-running manager for the offering. A preliminary prospectus supplement and accompanying base prospectus relating to the offering have been filed with the U.S. Securities and Exchange Commission and are available on its website, www.sec.gov.