Monolithic Power (MPWR) Interim CFO Robert W. Dean II Receives Award

What Happened
Robert W. Dean II, Interim Chief Financial Officer of Monolithic Power Systems (MPWR), was awarded 1,359 shares on July 25, 2026. The shares were recorded on the Form 4 with an acquisition price of $0.00 (these are performance-based RSUs that converted to shares upon certification of performance targets).

Key Details

• Transaction date: July 25, 2026 (reported on Form 4 filed July 28, 2026).
• Transaction type/code: A = Award/Grant (market-based restricted stock units converted to shares).
• Shares awarded/acquired: 1,359 shares; acquisition price shown as $0.00.
• Vesting schedule: 1/3 of the shares vest on July 25, 2027; 1/3 on July 25, 2028; 1/3 on July 25, 2029 (per the grant agreement).
• Origin of award: MSUs granted July 25, 2023, were tied to stock-price targets and relative total shareholder return (3-year performance period); Compensation Committee certified achievement on July 25, 2026.
• Shares owned after transaction: Not disclosed in the filing.
• Filing timeliness: Filed July 28, 2026 for the 7/25/26 transaction; the Form 4 shows the filing date but does not indicate a late-filed status in the provided data.

Context
This was a performance-based equity award converting to company shares after the achievement of pre-set market and TSR goals. Such awards are compensation tied to long-term performance rather than an open-market purchase or sale and do not by themselves indicate the insider’s near-term buying or selling intent.