X0306 4 2019-02-10 0 0001408198 MSCI Inc. MSCI 0001416752 Pettit CD Baer MSCI INC. 7 WORLD TRADE CENTER, 250 GREENWICH ST NEW YORK NY 10007 0 1 0 0 President Common Stock 2019-02-10 4 F 0 963 172.29 D 176684 D Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of the third tranche of 2,048 restricted stock units granted on February 10, 2016. /s/ Cecilia Aza, attorney-in-fact 2019-02-12