X0306 4 2018-02-23 0 0001374535 Altra Industrial Motion Corp. AIMC 0001383278 Schuele Craig C/O ALTRA INDUSTRIAL MOTION CORP. 300 GRANITE STREET SUITE 201 BRAINTREE MA 02184 0 1 0 0 VP Marketing and Business Dev Common Stock, par value, $0.001 2018-02-23 4 A 0 1357 44.80 A 72801 D Performance shares earned after Compensation Committee determined that certain performance goals for the applicable measurement period (calendar year 2017) had been met. The shares are issued as restricted common stock par value $0.001 ("Restricted Common Stock") awarded to the Reporting Person under the Altra Industrial Motion Corp. 2014 Omnibus Incentive Plan, and are subject to forfeiture restrictions. The Restricted Common stock will be released from the forfeiture restrictions on February 15, 2020. Dividends accrued on earned performance shares were included as additional shares of Restricted Common Stock in accordance with the terms of the award agreement. Todd Patriacca, Attorney-In-Fact 2018-02-27