X0304 4 2011-12-19 0001408198 MSCI Inc. MSCI 0001416753 Retelny Gary MSCI INC. ONE CHASE MANHATTAN PLAZA, 44TH FL NEW YORK NY 10005 0 1 0 0 Head of Strategy & Business De Class A Common Stock 2011-12-19 4 F 0 3008 32.13 D 57759 D Represents shares reacquired by MSCI to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 6,506 restricted stock units granted to the Reporting Person on December 15, 2009. /s/ Cecilia Aza, attorney-in-fact 2011-12-21