X0303 4 2010-03-04 0 0000842633 TRIMAS CORP TRS 0001446066 Zeffiro A Mark 39400 WOODWARD AVENUE SUITE 130 BLOOMFIELD HILLS MI 48304 0 1 0 0 Chief Financial Officer Common Stock 2010-03-04 4 P 0 3738 6.50 D 38306 D Common Stock 2010-03-05 4 P 0 250 6.85 A 38556 D Common Stock 2010-03-08 4 A 0 9940 0 A 48496 D Common Stock 2010-03-08 4 A 0 5960 0 A 54456 D Restricted Stock Unit 0 2010-03-08 4 A 0 32850 0 A 2013-02-26 2013-02-26 Common Stock 32850 32850 D Restricted shares of common stock granted under the 2006 Long Term Equity Incentive Plan, restrictions lapse on March 15, 2010. Restricted shares of common stock granted under the 2006 Long Term Equity Incentive Plan, restrictions lapse on March 15, 2011. Each restricted stock unit represents a contingent right to receive the value of one share of common stock, payable only in cash. The restricted stock units vest and will be payable on February 26, 2013. /s/ Paula Reno attorney-in-fact 2010-03-08