CEO Michael Hsing Granted 302,920 Shares in Monolithic Power Systems

On October 25, 2025, Michael Hsing, CEO and Director of Monolithic Power Systems Inc, was granted 302,920 shares of common stock. These shares were awarded as part of market-based restricted stock units (MSUs) that were subject to the achievement of specific stock price targets and relative total stockholder return percentile rank over a three-year performance and vesting period. The Company's Compensation Committee certified and approved the achievement of the performance criteria, resulting in the full vesting of the shares on October 25, 2025. Following this transaction, Mr. Hsing owns a total of 1,117,587 shares directly and an additional 145,865 shares indirectly through trusts.