Xiao Deming Insider Trading Activity
Xiao Deming 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 $31.2M on Aug 1, 2025.
Performance Scorecard
Forward stock performance after each transaction by Xiao Deming. 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 | — | +4.5% | 83% | 6 |
| 90 days | — | -37.0% | 0% | 2 |
| 120 days | — | -26.1% | 0% | 2 |
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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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
May 6, 2026 | MPWR | Sell | 3,329 | $1648.38 | $5.5M | −1.4% | VP | |
May 6, 2026 | MPWR | Sell | 14,167 | $1652.80 | $23.4M | −6.1% | VP | |
May 6, 2026 | MPWR | Sell | 11,597 | $1657.93 | $19.2M | −5.3% | VP | |
May 6, 2026 | MPWR | Sell | 907 | $1661.38 | $1.5M | −0.4% | VP | |
Feb 6, 2026 | MPWR | Sell | 22,875 | $1171.16 | $26.8M | −8.8% | VP | |
Aug 1, 2025 | MPWR | Sell | 39,999 | $780.00 | $31.2M | −24.8% | VP |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| MPWR | MONOLITHIC POWER SYSTEMS INC | 6 | $107.6M |
Other insiders at MONOLITHIC POWER SYSTEMS INC
7 other tracked filers at MPWR.