CHANG KUO WEI HERBERT (CIK 1192171) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-25). Recent activity: Sell MPWR (50 shares), Sell MPWR (50 shares), Buy MPWR (189 shares), Sell MPWR (100 shares), Sell MPWR (100 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-25 | MONOLITHIC POWER SYSTEMS, INC. (MPWR) | Director | Sell | 50 | $64,078 |
| 2026-08-13 | MONOLITHIC POWER SYSTEMS, INC. (MPWR) | Director | Sell | 50 | $71,000 |
| 2026-02-05 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Buy | 189 | $0 |
| 2025-11-25 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 100 | $89,697 |
| 2025-11-24 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 100 | $87,397 |
| 2025-05-13 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 50 | $36,900 |
| 2025-05-12 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 100 | $69,800 |
| 2025-05-09 | MONOLITHIC POWER SYSTEMS INC (MPWR) | Director | Sell | 100 | $65,000 |
来源：SEC Form 4 申报文件 · 截至 2026-08-25