9 Form 4 filings for MPWR between 2026-07-17 and 2026-08-26, from 3 filers. 8 discretionary (7 sales, 0 purchases), 1 routine grant or withholding filing. 2 of 9 state a filing-level total, summing to $20,287,464; the rest report only their largest transaction, so the true figure is higher. Prices ran $1,282 to $1,420.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-26 | DEAN ROBERT W II | sold | 32 | $1297.72 | $41,527 | 2 | |
| 2026-08-25 | CHANG KUO WEI HERBERT | sold | 50 | $1281.57 | — | — | |
| 2026-08-19 | DEAN ROBERT W II | sold | 6 | $1413.64 | — | — | |
| 2026-08-13 | CHANG KUO WEI HERBERT | sold | 50 | $1420.00 | — | — | |
| 2026-08-06 | Sciammas Maurice | gifted | 25,000 | — | — | 2 | |
| 2026-08-06 | DEAN ROBERT W II | sold | 105 | $1344.27 | — | — | |
| 2026-08-05 | Sciammas Maurice | sold | 30 | $1343.94 | — | — | |
| 2026-07-28 | DEAN ROBERT W II | received | 1,359 | — | — | — | |
| 2026-07-17 | Sciammas Maurice | EVP, WW Sales & Marketing | sold | 5,640 | $1352.95 | $20,245,937 | 18 |
| 9 filings · 3 filers · disclosed totals only | $20,287,464 (2/9) | — | |||||