X0306 4 2017-02-18 0 0000890394 MoSys, Inc. MOSY 0001601839 Monson John Stearns 3301 OLCOTT STREET SANTA CLARA CA 95054 0 1 0 0 VP of Marketing and Sales Common Stock 2017-02-18 4 M 0 400 A 1041 D Common Stock 2017-02-18 4 M 0 175 3.5 D 866 D On February 18, 2014, the reporting person was granted 2,000 restricted stock units, which reflects the impact of a 1 for 10 reverse stock split of the Issuers Common Stock effected on February 15, 2017. The restricted stock units vest in 5 equal installments on each of February 18, 2014, 2015, 2016, 2017 and 2018. Represents the conversion upon vesting of restricted stock units (RSU) into common stock. RSU converts into common stock on a one-for-one basis. Reflects the impact of a 1 for 10 reverse stock split of the Issuers Common Stock effected on February 15, 2017 /s/ C Leitner by power of attny 2017-02-22