Monolithic Power Systems Inc. Executive Awarded Market-Based Restricted Stock Units

On October 25, 2025, Monolithic Power Systems Inc. (MPWR) awarded 135,520 shares of common stock to Saria Tseng, EVP & General Counsel, as part of market-based restricted stock units (MSUs) granted on October 25, 2022. The MSUs were subject to the achievement of five 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 award. All shares fully vested on October 25, 2025, pursuant to the grant agreement. Following this transaction, Tseng owns 261,874 shares of common stock.