X0306 4 2016-11-07 0 0001374535 Altra Industrial Motion Corp. AIMC 0001159288 STORCH CHRISTIAN C/O ALTRA INDUSTRIAL MOTION CORP. 300 GRANITE STREET SUITE 201 BRAINTREE MA 02184 0 1 0 0 Chief Financial Officer Common Stock, par value $0.001 17672 D Common Stock, par value $0.001 68561 I By Trust Common Stock, par value $0.001 2016-11-07 4 S 0 292 30.00 D 68269 I By Trust Common Stock, par value $0.001 2016-11-08 4 S 0 2500 30.50 D 65769 I By Trust Common Stock, par value $0.001 2016-11-08 4 S 0 2208 30.00 D 63561 I By Trust Common Stock, par value $0.001 2016-11-09 4 S 0 2500 31.00 D 61061 I By Trust Common Stock, par value $0.001 2016-11-09 4 S 0 2500 31.50 D 58561 I By Trust The Shares are held in a trust for which Mr. Storch serves as the trustee. Shares sold pursuant to 10b5-1 plan Todd Patriacca, Attorney-in-fact 2016-11-09