MONOLITHIC POWER SYSTEMS, INC. 4

Interim CFO Robert W. Dean II received a performance-based stock award of 1,359 Monolithic Power Systems (MPWR) common shares.

Interim CFO Robert W. Dean II of Monolithic Power Systems, Inc. received an award of 1,359 shares of common stock on July 25, 2026 upon certification of performance conditions tied to previously granted market-based restricted stock units, increasing his directly held ownership to 7,237 shares, in addition to 65 shares held indirectly by a parent and daughter; no open-market purchases or sales occurred, and the grant will vest in three equal annual installments from 2027 to 2029.

Filing Facts

CIK

1280452

Ticker

MPWR

Form

4

Source Type

sec

Accession

0001214659-26-009117

Alert Tier

7