X0306 4 2017-01-27 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 2017-01-27 4 F 0 1521 82.76 D 66965 D Common Stock 2017-01-28 4 F 0 828 82.76 D 66137 D Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 3,989 restricted stock units granted to the Reporting Person on January 27, 2015. Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 2,238 restricted stock units granted to the Reporting Person on January 28, 2014. /s/ Cecilia Aza, attorney-in-fact 2017-01-31