Maurice Sciammas sold $6.1M of MPWR
EVP, WW Sales & Marketing at MONOLITHIC POWER SYSTEMS INC. 7,034 shares at an average of $870.21, traded Nov 19, 2025, filed Nov 20, 2025.
Score components
- +15RoleOfficer
- +25Trade size$6.1M at market
- 0Share of holdings soldSold 3.8% 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 0001214659-25-017014, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Nov 19, 2025 | SOpen-market sale Common Stock | -240 | $862.58 | $207k | 183,066 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -160 | $863.86 | $138k | 182,906 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -40 | $865.89 | $35k | 182,866 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -339 | $866.19 | $294k | 182,527 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -699 | $867.57 | $606k | 181,828 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -723 | $868.42 | $628k | 181,105 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -1,842 | $869.39 | $1.6M | 179,263 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -320 | $870.36 | $279k | 178,943 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -220 | $871.45 | $192k | 178,723 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -574 | $872.80 | $501k | 178,149 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -1,146 | $873.78 | $1.0M | 177,003 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -731 | $874.50 | $639k | 176,272 | Nov 20, 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% | |
| 19Weak | 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% | |
| 55Moderate | MONOLITHIC POWER SYSTEMS INC | Saria Tseng EVP & General Counsel | $18M 20,000 shares | -10% | |
| 60Notable | MONOLITHIC POWER SYSTEMS INC | Saria Tseng EVP & General Counsel | $19M 20,000 shares | -11% | |
| 44Moderate | MONOLITHIC POWER SYSTEMS INC | Kuo Wei Herbert Chang director | $90k 100 shares | -19% | |
| 55Moderate | MONOLITHIC POWER SYSTEMS INC | Maurice Sciammas EVP, WW Sales & Marketing | $3.6M 3,976 shares | -3% | |
| 44Moderate | MONOLITHIC POWER SYSTEMS INC | Kuo Wei Herbert Chang director | $87k 100 shares | -16% | |
| 60Notable | MONOLITHIC POWER SYSTEMS INC | Maurice Sciammas EVP, WW Sales & Marketing | $25M 27,966 shares | -16% | |
| 65Notable | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $38M 40,000 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.