Theodore Blegen sold $2.8M of MPWR
EVP and CFO at MONOLITHIC POWER SYSTEMS INC. 3,000 shares at an average of $940.47, traded Jan 2, 2026, filed Jan 6, 2026.
Score components
- +22RoleCFO
- +25Trade size$2.8M at market
- 0Share of holdings soldSold 4.2% of holdings
- +8Cluster2 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
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 0001214659-26-000197, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -80 | $927.61 | $74k | 71,252 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -194 | $930.86 | $181k | 71,058 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -80 | $933.64 | $75k | 70,978 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -40 | $934.74 | $37k | 70,938 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -80 | $935.33 | $75k | 70,858 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -120 | $936.50 | $112k | 70,738 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -460 | $938.52 | $432k | 70,278 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -117 | $939.75 | $110k | 70,161 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -40 | $940.03 | $38k | 70,121 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -406 | $941.60 | $382k | 69,715 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -74 | $942.42 | $70k | 69,641 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -539 | $943.71 | $509k | 69,102 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -650 | $944.35 | $614k | 68,452 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -40 | $945.00 | $38k | 68,412 | Jan 6, 2026 |
| Jan 2, 2026 | SOpen-market sale Common Stock10b5-1 | -80 | $946.62 | $76k | 68,332 | Jan 6, 2026 |
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% | |
| 1Weak | MONOLITHIC POWER SYSTEMS INC | Maurice Sciammas EVP, WW Sales & Marketing | $33k 30 shares | -2% | |
| 45Moderate | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $39M 33,000 shares | -4% | |
| 45Moderate | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $39M 33,000 shares | -3% | |
| 45Moderate | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $39M 34,000 shares | -3% | |
| 48Moderate | MONOLITHIC POWER SYSTEMS INC | Maurice Sciammas EVP, WW Sales & Marketing | $236k 200 shares | -13% | |
| 28Weak | MONOLITHIC POWER SYSTEMS INC | Victor K Lee director | $485k 400 shares | -1% | |
| 67Notable | MONOLITHIC POWER SYSTEMS INC | Theodore Blegen EVP and CFO | $25M 21,725 shares | -21% | |
| 65Notable | MONOLITHIC POWER SYSTEMS INC | Michael Hsing CEO | $64M 54,923 shares | -5% | |
| 60Notable | MONOLITHIC POWER SYSTEMS INC | Maurice Sciammas EVP, WW Sales & Marketing | $27M 22,875 shares | -11% |
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.