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sellModerate cluster of 510b5-1 plan

Theodore Blegen sold $1.9M of MPWR

EVP and CFO at MONOLITHIC POWER SYSTEMS, INC.. 2,500 shares at an average of $772.96, traded Nov 1, 2024, filed Nov 5, 2024.

Warning score
42
Value
$1.9M
2,500 shares
Holdings after
56,678
-4% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CFO
    +22
  • Trade size
    $1.9M at market
    +25
  • Share of holdings sold
    Sold 4.2% of holdings
    0
  • Cluster
    5 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

This signal so far: 1m -25.0%, 3m -13.8%, 6m -18.0%.

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 Nov 5, 2024: +84.5%SPY +38.1% · excess +46.4%

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 0001214659-24-018467, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-150$764.54$115k59,028Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-50$765.13$38k58,978Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-208$766.22$159k58,770Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-183$767.82$141k58,587Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-175$768.08$134k58,412Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-50$770.46$39k58,362Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-246$771.03$190k58,116Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-200$772.40$154k57,916Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-300$775.65$233k57,616Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-73$776.24$57k57,543Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-300$777.43$233k57,243Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-465$778.33$362k56,778Nov 5, 2024
Nov 1, 2024SOpen-market sale
Common Stock10b5-1
-100$779.79$78k56,678Nov 5, 2024

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%
38Weak
MPWRsell 210b5-1
MONOLITHIC POWER SYSTEMS, INC.
Michael Hsing
CEO
$3.6M
5,200 shares
-1%
46Moderate
MPWRsell 2
MONOLITHIC POWER SYSTEMS, INC.
Theodore Blegen
EVP and CFO
$381k
532 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%
65Notable
MPWRsell 5
MONOLITHIC POWER SYSTEMS, INC.
Michael Hsing
CEO
$2.2M
2,812 shares
-0%
50Moderate
MPWRsell 5
MONOLITHIC POWER SYSTEMS, INC.
Maurice Sciammas
EVP, WW Sales & Marketing
$663k
866 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 $1.9M of MPWR | InsiderTell