SEC Form 4 research
| Issuer | MONOLITHIC POWER SYSTEMS INC |
|---|---|
| Tickers | MPWR |
| Reporting owners | 22 |
| Officers and directors | 20 |
| Last public filing | 2026-09-30 |
| Available | Trade date | Reporting owners | Code | Shares | Price | Reported value |
|---|---|---|---|---|---|---|
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 130 | $1,356.94 | Not reported |
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 10,967 | $1,351.43 | Not reported |
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 6,343 | $1,347.15 | Not reported |
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 5,783 | $1,343.76 | Not reported |
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 2,949 | $1,338.66 | Not reported |
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 1,111 | $1,333.34 | Not reported |
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 2,121 | $1,328.54 | Not reported |
| 2026-09-30 | 2026-09-28 | Hsing Michael | S | 596 | $1,323.31 | Not reported |
| 2026-08-26 | 2026-08-24 | DEAN ROBERT W II | S | 32 | $1,297.72 | Not reported |
| 2026-08-25 | 2026-08-24 | CHANG KUO WEI HERBERT | S | 50 | $1,281.57 | Not reported |
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