X0306 4 2018-03-01 0 0000890394 MoSys, Inc. MOSY 0001601839 Monson John Stearns 2309 BERING DR SAN JOSE CA 95131 0 1 0 0 VP of Marketing and Sales Common Stock 2018-03-01 4 M 0 2000 A 11126 D Common Stock 2018-03-01 4 F 0 817 1.5 D 10309 D On July 22, 2016, the reporting person was granted 6,000 restricted stock units, which reflect the impact of a one for ten reverse stock split of the Issuers common stock effected in February 2017. The restricted stock units vest in three equal installments on each of March 1, 2017, 2018, and 2019. Amounts shown represent the conversion of the RSUs into common stock on a one for one basis upon vesting. C.Leitner by power of attny 2018-03-05