Form 4 for MPWR Monolithic Power Systems
Accepted 2026-07-28 18:42:12 ET · period of report 2026-07-25 · accession 0001214659-26-009117 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-28 18:42 | 2026-07-25 | MPWR | DEAN ROBERT W II | Interim CFO | A - Grant | $0.00 | +1,359 | 7,237 | +23% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-07-25 | A | A | 1,359 | $0.00 | 7,237 | D | — | — | (F1) On July 25, 2023, the reporting person was granted market-based restricted stock units ("MSUs") subject to the achievement of stock price targets and relative total stockholder return percentile rank over a three-year performance period. On July 25, 2026, the Company's Compensation Committee of the Board of Directors certified and approved the achievement of the performance conditions for the MSUs, which resulted in an award of 1,359 shares to the reporting person. 1/3 of the shares will vest on July 25, 2027, 1/3 of the shares will vest on July 25, 2028, and 1/3 of the shares will vest on July 25, 2029, pursuant to the grant agreement. |