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sellModerate cluster of 2

Theodore Blegen sold $381k of MPWR

EVP and CFO at MONOLITHIC POWER SYSTEMS INC. 532 shares at an average of $717.10, traded Feb 10, 2025, filed Feb 12, 2025.

Warning score
46
Value
$381k
532 shares
Holdings after
52,912
-1% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CFO
    +22
  • Trade size
    $381k at market
    +16
  • Share of holdings sold
    Sold 1.0% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8

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.

MPWROct 9, 2026 · close 1,386
Since filing Feb 12, 2025: +100.8%SPY +31.6% · excess +69.3%

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 0001214659-25-002480, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 10, 2025SOpen-market sale
Common Stock
-532$717.10$381k52,912Feb 12, 2025

Related signals

Other insiders at MONOLITHIC POWER SYSTEMS INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
MPWRsell10b5-1
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%
28Weak
MPWRsell
MONOLITHIC POWER SYSTEMS INC
Kuo Wei Herbert Chang
director
$65k
100 shares
-11%
38Weak
MPWRsell 210b5-1
MONOLITHIC POWER SYSTEMS INC
Michael Hsing
CEO
$3.6M
5,200 shares
-1%
58Moderate
MPWRsell 2
MONOLITHIC POWER SYSTEMS INC
Michael Hsing
CEO
$1.9M
2,594 shares
-0%
38Weak
MPWRsell 210b5-1
MONOLITHIC POWER SYSTEMS INC
Michael Hsing
CEO
$8.4M
11,964 shares
-1%
30Weak
MPWRsell10b5-1
MONOLITHIC POWER SYSTEMS INC
Michael Hsing
CEO
$2.5M
3,636 shares
-0%
27Weak
MPWRsell10b5-1
MONOLITHIC POWER SYSTEMS INC
Theodore Blegen
EVP and CFO
$1.5M
2,500 shares
-4%
56Moderate
MPWRsell 5
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.

Theodore Blegen sold $381k of MPWR | InsiderTell