Zhou Jeff Insider Trading Activity
Zhou Jeff has been net-selling over the last 12 months with 0 purchases and 6 sales across 1 company.
MPWR is the most-traded position with 6 trades. The largest single transaction was a sale of MPWR for $825K on May 6, 2026.
Performance Scorecard
Forward stock performance after each transaction by Zhou Jeff. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -0.7% | 33% | 6 |
| 90 days | — | -11.5% | 0% | 3 |
| 120 days | — | -14.1% | 0% | 3 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersMPWR · MONOLITHIC POWER SYSTEMS INC
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Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| MPWR | MONOLITHIC POWER SYSTEMS INC | 6 | $3.1M |
Other insiders at MONOLITHIC POWER SYSTEMS INC
7 other tracked filers at MPWR.