Monolithic Power Systems, Inc. (MPWR) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for MPWR. 13F holdings as of 2026-06-30.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|
| Vanguard | 6,144,593 | $8.5B | INCREASED |
| BlackRock | 5,589,925 | $7.7B | DECREASED |
| FMR | 5,177,258 | $7.2B | INCREASED |
| Invesco Ltd | 2,343,930 | $3.2B | INCREASED |
| State Street | 2,282,186 | $3.2B | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|
| Saria Tseng (EVP & General Counsel) | GIFT | 2,000 | | 2026-08-31 |
| Robert W Dean II (Interim CFO) | OTHER | 5 | | 2026-08-24 |
| Robert W Dean II (Interim CFO) | SELL | 32 | $42K | 2026-08-24 |
| Kuo Wei Herbert Chang (Director) | SELL | 50 | $64K | 2026-08-24 |
| Robert W Dean II (Interim CFO) | SELL | 6 | $8K | 2026-08-17 |
Recent Congressional Trades
| Member | Type | Amount | Date |
|---|
| Thomas H Tuberville | SALE | $1,001 - $15,000 | 2024-05-03 |
| Byron Donalds (Republican) | SALE | $1,001 - $15,000 | 2026-06-05 |
| Byron Donalds (Republican) | SALE | $1,001 - $15,000 | 2026-06-05 |
Full institutional holdings, insider history, and congressional trades for Monolithic Power Systems, Inc. on SentiSense.