Effective as of February 28, 2017, Chi-Ping Hsu resigned from his position as a member of the board of directors of MoSys, Inc. (the “Company”) and from all committees of the Company’s board of directors citing personal reasons. As a result of Mr. Hsu’s departure, the Compensation Committee of the Company’s board of directors has a vacancy, which the Company will endeavor to fill by its 2017 annual meeting.