X0304 4 2012-02-13 0 0001374535 Altra Holdings, Inc. AIMC 0001383274 Christenson Carl R 300 GRANITE STREET SUITE 201 BRAINTREE MA 02184 1 1 0 0 Chief Executive Officer Common Stock, par value $0.001 2012-02-13 2012-02-13 4 A 0 40398 21.35 A 512258 D These shares are restricted common stock, par value $0.001 ("Restricted Common Stock"), awarded to the Reporting Person under the Altra Holdings, Inc. 2004 Equity Incentive Plan, as amended. Shares of the Restricted Common Stock are subject to restrictions. The restrictions will expire in equal installments on August 15, 2012, August 15, 2013, August 15, 2014 and August 15, 2015, respectively Todd Patriacca, Attorney-in-fact 2012-02-15