Michael Hsing, CEO at MONOLITHIC POWER SYSTEMS INC (MPWR), sold 34,000 shares at $1132.01 ($38.8M) on 2026-02-10, disclosed to the SEC on 2026-02-12.
Seasonal sale ($38.8M) by CEO — this insider has traded MPWR in February in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $1132.01 | 4,302 | $4.9M | 12.5% |
| 2 | $1136.75 | 6,325 | $7.2M | 18.5% |
| 3 | $1141.88 | 16,080 | $18.4M | 47.3% |
| 4 | $1145.90 | 3,864 | $4.4M | 11.4% |
| 5 | $1151.11 | 1,215 | $1.4M | 3.6% |
| 6 | $1154.96 | 694 |
| $802K |
| 2.1% |
| 7 | $1161.41 | 360 | $418K | 1.1% |
| 8 | $1176.04 | 880 | $1.0M | 2.7% |
| 9 | $1197.26 | 280 | $335K | 0.9% |
| Total | $1142.28 avg | 34,000 | $38.8M | 100% |
| Filing → |
| MPWR | SELL | 2026-02-17 | $38.7M | — | Filing → |
| MPWR | SELL | 2026-02-13 | $39.2M | — | Filing → |
| MPWR | SELL | 2026-02-10 | $64.3M | — | Filing → |