Kuo Wei Herbert Chang sold $65k of MPWR
director at MONOLITHIC POWER SYSTEMS INC. 100 shares at an average of $650.00, traded May 8, 2025, filed May 9, 2025.
Score components
- +15RoleDirector
- +8Trade size$65k at market
- +5Share of holdings soldSold 11% of holdings
- 0ClusterNo other insider selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001214659-25-007331, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 8, 2025 | SOpen-market sale Common Stock | -100 | $650.00 | $65k | 776 | May 9, 2025 |
Related signals
Other insiders at MONOLITHIC POWER SYSTEMS INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 30Weak | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $40M 30,000 shares | -4% | |
| 21Weak | MPWRsell MONOLITHIC POWER SYSTEMS INC | Kuo Wei Herbert Chang director | $37k 50 shares | -7% | |
| 28Weak | MPWRsell MONOLITHIC POWER SYSTEMS INC | Kuo Wei Herbert Chang director | $70k 100 shares | -13% | |
| 38Weak | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $3.6M 5,200 shares | -1% | |
| 46Moderate | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $381k 532 shares | -1% | |
| 58Moderate | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $1.9M 2,594 shares | -0% | |
| 38Weak | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $8.4M 11,964 shares | -1% | |
| 30Weak | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $2.5M 3,636 shares | -0% | |
| 27Weak | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $1.5M 2,500 shares | -4% | |
| 56Moderate | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $562k 734 shares | -1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.