X0306 4 2018-07-31 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 2018-07-31 4 M 0 11667 A 21976 D Common Stock 2018-07-31 4 F 0 3929 1.06 D 18047 D On September 26, 2017, the reporting person was granted 35,000 restricted stock units, which vest in 3 equal installments on each of January 31, 2018, July 31, 2018 and January 31, 2019 /s/ C. Leitner by power of attny 2018-08-02