X0306 4 2016-12-31 0 0001408198 MSCI Inc. MSCI 0001560708 Zangari Peter J. MSCI INC. 7 WORLD TRADE CENTER, 250 GREENWICH ST. NEW YORK NY 10007 0 1 0 0 Head of Analytics Common Stock 2016-12-31 4 F 0 2278 78.78 D 68486 D Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 4,416 performance stock units related to the achievement of certain cumulative performance metrics for the 2014 and 2015 fiscal years that time-vested on December 31, 2016. /s/ Cecilia Aza, attorney-in-fact 2017-01-04