MSCI Inc. Files S-1 for Secondary Sale of Its Common Stock

NEW YORK--(Business Wire)--
MSCI Inc. (NYSE:MXB) announced today that it has filed with the
Securities and Exchange Commission a Registration Statement on Form
S-1 relating to the sale by Morgan Stanley of 23,000,000 shares of
MSCI class A common stock, par value $0.01 per share, plus an
additional 3,450,000 shares of class A common stock if the
underwriters sell more than 23,000,000 shares.

This announcement is neither an offer to sell nor a solicitation
of an offer to buy shares of class A common stock. Any offering of
these securities will be made only by means of a prospectus. A
registration statement relating to these securities has been filed
with the Securities and Exchange Commission but has not yet become
effective. These securities may not be sold nor may offers to buy be
accepted prior to the time the registration statement becomes
effective.

Copies of the preliminary prospectus, when they become available,
may be obtained from Morgan Stanley & Co. Incorporated, 1585 Broadway,
New York, New York 10036. MXB#IR

MSCI Inc.:
MSCI, New York
Lisa Monaco, + 1-866-447-7874

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