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sellModerate

Brian S Posner sold $34k of ACGL

director at ARCH CAPITAL GROUP LTD.. 2,000 shares at an average of $17.14, traded May 11, 2026, filed May 12, 2026.

Warning score
41
Value
$34k
2,000 shares
Holdings after
0
-100% from before
From 52-week low
+11%
low $84.72, close $93.83
From 52-week high
-8%
high $101.98, as of May 11, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $34k at market
    +6
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    No other insider selling within 14 days
    0

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 -3.4%, 3m +4.2%, 6m -.

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.

ACGLOct 13, 2026 · close 96.85
Since filing May 12, 2026: +2.7%SPY +5.9% · excess -3.2%

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 0001372455-26-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 11, 2026SOpen-market sale
Depositary Shares, Series G
-2,000$17.14$34k0May 12, 2026

Related signals

Other insiders at ARCH CAPITAL GROUP LTD. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
32Weak
ACGLsell
ARCH CAPITAL GROUP LTD.
Francois Morin
CFO and Treasurer
$1.1M
11,010 shares
-6%
42Moderate
ACGLsell
ARCH CAPITAL GROUP LTD.
Brian S Posner
director
$59k
3,000 shares
-100%
43Moderate
ACGLbuy
ARCH CAPITAL GROUP LTD.
Daniel Joseph Houston
director
$499k
5,300 shares
+115%
50Moderate
ACGLsell 3
ARCH CAPITAL GROUP LTD.
Nicolas Papadopoulo
CEO
$2.1M
21,930 shares
-2%
57Moderate
ACGLsell 3
ARCH CAPITAL GROUP LTD.
Brian S Posner
director
$51k
3,000 shares
-60%
39Weak
ACGLsell 3
ARCH CAPITAL GROUP LTD.
David Gansberg
President, Arch Capital Group
$569k
5,907 shares
-2%
30Weak
ACGLsell
ARCH CAPITAL GROUP LTD.
Maamoun Rajeh
President, Arch Capital Group
$4.6M
47,430 shares
-10%
58Moderate
ACGLsell 2
ARCH CAPITAL GROUP LTD.
John M Pasquesi
director, other
$20M
212,666 shares
-38%
52Moderate
ACGLsell 2
ARCH CAPITAL GROUP LTD.
Francois Morin
EVP AND CFO
$757k
8,000 shares
-3%
44Moderate
ACGLsell
ARCH CAPITAL GROUP LTD.
Maamoun Rajeh
PRESIDENT, ARCH CAPITAL GROUP
$941k
10,000 shares
-2%

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.

Brian S Posner sold $34k of ACGL | InsiderTell