Kuo Wei Herbert Chang sold $87k of MPWR
director at MONOLITHIC POWER SYSTEMS INC. 100 shares at an average of $873.97, traded Nov 21, 2025, filed Nov 24, 2025.
Score components
- +15RoleDirector
- +9Trade size$87k at market
- +5Share of holdings soldSold 16% of holdings
- +15Cluster5 insiders 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 0001214659-25-017110, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Nov 21, 2025 | SOpen-market sale Common Stock | -100 | $873.97 | $87k | 526 | Nov 24, 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% | |
| 38Weak | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $39M 33,000 shares | -4% | |
| 38Weak | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $39M 33,000 shares | -3% | |
| 38Weak | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $39M 34,000 shares | -3% | |
| 60Notable | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $25M 21,725 shares | -21% | |
| 58Moderate | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $64M 54,923 shares | -5% | |
| 35Weak | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $3.4M 3,000 shares | -4% | |
| 35Weak | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $2.8M 3,000 shares | -4% | |
| 27Weak | MONOLITHIC POWER SYSTEMS INC | Victor K Lee director | $952k 1,000 shares | -3% | |
| 42Moderate | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $2.7M 3,000 shares | -4% |
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.