Maurice Sciammas sold $25M of MPWR
EVP, WW Sales & Marketing at MONOLITHIC POWER SYSTEMS INC. 27,966 shares at an average of $881.66, traded Nov 19, 2025, filed Nov 20, 2025.
Score components
- +15RoleOfficer
- +25Trade size$24.7M 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 0001214659-25-017016, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Nov 19, 2025 | SOpen-market sale Common Stock | -431 | $875.26 | $377k | 175,841 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -940 | $876.62 | $824k | 174,901 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -1,976 | $877.45 | $1.7M | 172,925 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -1,854 | $878.55 | $1.6M | 171,071 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -1,966 | $879.54 | $1.7M | 169,105 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -3,776 | $880.58 | $3.3M | 165,329 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -2,469 | $881.42 | $2.2M | 162,860 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -3,344 | $882.51 | $3.0M | 159,516 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -6,513 | $883.50 | $5.8M | 153,003 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -2,149 | $884.44 | $1.9M | 150,854 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -1,738 | $885.10 | $1.5M | 149,116 | Nov 20, 2025 |
| Nov 19, 2025 | SOpen-market sale Common Stock | -810 | $886.01 | $718k | 148,306 | 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% | |
| 52Moderate | MPWRsell MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $25M 21,725 shares | -21% | |
| 27Weak | 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% | |
| 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% |
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.