Xiao Deming (CIK 1308647) reported 12 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-08). Recent activity: Sell MPWR (3,329 shares), Sell MPWR (14,167 shares), Sell MPWR (11,597 shares), Sell MPWR (907 shares), Sell MPWR (22,875 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-08 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 3,329 | $5.5M |
| 2026-05-08 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 14,167 | $23.4M |
| 2026-05-08 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 11,597 | $19.2M |
| 2026-05-08 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 907 | $1.5M |
| 2026-02-10 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 22,875 | $26.8M |
| 2026-02-05 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Buy | 57,170 | $0 |
| 2025-10-31 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 54,543 | $59.8M |
| 2025-10-28 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Buy | 135,520 | $0 |
| 2025-08-12 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Buy | 945 | $0 |
| 2025-08-12 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 945 | $0 |
| 2025-08-04 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 39,999 | $31.2M |
| 2025-02-12 | MONOLITHIC POWER SYSTEMS INC (MPWR) | EVP, Global Operations | Sell | 662 | $474,720 |
Source: SEC Form 4 filings · as of 2026-05-08