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sellWeak cluster of 510b5-1 plan

Douglas A Alexander sold $279k of AMKR

director at AMKOR TECHNOLOGY, INC.. 5,000 shares at an average of $55.81, traded Aug 7, 2026, filed Aug 11, 2026.

Warning score
14
Value
$279k
5,000 shares
Holdings after
29,109
-15% from before
From 52-week low
+144%
low $22.63, close $55.17
From 52-week high
-41%
high $93.38, as of Aug 7, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $279k at market
    +14
  • Share of holdings sold
    Sold 15% of holdings
    +5
  • Cluster
    5 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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.

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.

AMKROct 9, 2026 · close 49.12
Since filing Aug 11, 2026: -9.4%SPY +1.2% · excess -10.6%

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 0001628280-26-055750, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 7, 2026MOption exercise
Common Stock10b5-1
+5,000$8.51$43k34,109Aug 11, 2026
Aug 7, 2026SOpen-market sale
Common Stock10b5-1
-5,000$55.81$279k29,109Aug 11, 2026
Aug 7, 2026MOption exercise
Director Stock Option (Right-to-Buy)derivative10b5-1
-5,000$0.00$014,657Aug 11, 2026

Related signals

Other insiders at AMKOR TECHNOLOGY, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
0Weak
AMKRsell10b5-1
AMKOR TECHNOLOGY, INC.
Douglas A Alexander
director
$275k
5,000 shares
-15%
9Weak
AMKRsell10b5-1
AMKOR TECHNOLOGY, INC.
Megan Faust
CFO
$49k
1,000 shares
-1%
14Weak
AMKRsell 410b5-1
AMKOR TECHNOLOGY, INC.
Mark N Rogers
EVP & General Counsel
$299k
5,000 shares
-11%
24Weak
AMKRsell 510b5-1
AMKOR TECHNOLOGY, INC.
Megan Faust
CFO
$54k
1,000 shares
-1%
55Moderate
AMKRsell 5
AMKOR TECHNOLOGY, INC.
Guillaume Marie Jean Rutten
President and CEO
$2.7M
50,000 shares
-10%
56Moderate
AMKRsell 5
AMKOR TECHNOLOGY, INC.
Kevin Engel
President and CEO
$151k
3,221 shares
-25%
15Weak
AMKRsell 310b5-1
AMKOR TECHNOLOGY, INC.
Mark N Rogers
EVP & General Counsel
$326k
5,000 shares
-11%
18Weak
AMKRsell 210b5-1
AMKOR TECHNOLOGY, INC.
Megan Faust
CFO
$70k
1,000 shares
-1%
17Weak
AMKRsell 310b5-1
AMKOR TECHNOLOGY, INC.
Mark N Rogers
EVP & General Counsel
$431k
5,000 shares
-11%
36Weak
AMKRsell 3
AMKOR TECHNOLOGY, INC.
Winston J Churchill
director
$391k
5,000 shares
-15%

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.

Douglas A Alexander sold $279k of AMKR | InsiderTell