X0306 4 2012-09-05 0000790070 EMC CORP EMC 0001189196 TEUBER WILLIAM J JR EMC CORPORATION 176 SOUTH STREET HOPKINTON MA 01748 0 1 0 0 Vice Chairman Common Stock 2012-09-05 4 A 0 90875 0 A 857070 D Common Stock 2012-09-05 4 A 0 22719 0 A 879789 D Common Stock 74350 I By GRAT Performance restricted stock units granted under the Amended and Restated EMC Corporation 2003 Stock Plan, which are subject to forfeiture upon certain events. The performance restricted stock units will vest only in the event that certain performance targets approved by the Leadership and Compensation Committee (the "Committee") have been met for the calendar years 2013 and 2014. The Committee expects to determine whether the performance targets have been met, in full or in part, in 2015. If such targets are met, the performance restricted stock units will vest in 2015. /s/Barbara E. Coluci, Attorney In Fact 2012-09-07