Zhou Jeff (CIK 1480772) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-27). Recent activity: Sell MPWR (486 shares), Sell MPWR (514 shares), Sell MPWR (500 shares), Sell MPWR (500 shares), Buy MPWR (189 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-27 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 486 | $816,480 |
| 2026-05-06 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 514 | $809,283 |
| 2026-05-06 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 500 | $800,000 |
| 2026-05-06 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 500 | $825,000 |
| 2026-02-05 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Buy | 189 | $0 |
| 2025-08-28 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 193 | $167,910 |
| 2025-08-15 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 400 | $340,000 |
| 2025-08-13 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 200 | $166,000 |
来源：SEC Form 4 申报文件 · 截至 2026-05-27