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sellWeak cluster of 310b5-1 plan

Paul A Mahon sold $4.1M of UTHR

EVP & GENERAL COUNSEL at UNITED THERAPEUTICS Corp. 8,300 shares at an average of $497.54, traded Sep 17, 2026, filed Sep 18, 2026.

Warning score
25
Value
$4.1M
8,300 shares
Holdings after
45,172
-16% from before
From 52-week low
+23%
low $403.68, close $497.27
From 52-week high
-17%
high $596.76, as of Sep 17, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $4.1M at market
    +25
  • Share of holdings sold
    Sold 16% of holdings
    +5
  • Cluster
    3 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.

UTHROct 9, 2026 · close 549.16
Since filing Sep 18, 2026: +11.0%SPY +2.2% · excess +8.8%

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 0001231589-26-000020, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 17, 2026MOption exercise
Common Stock10b5-1
+8,300$146.03$1.2M53,47224 d ago
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-1,579$495.97$783k51,89324 d ago
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-2,873$496.58$1.4M49,02024 d ago
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-1,400$497.54$697k47,62024 d ago
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-843$498.74$420k46,77724 d ago
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-1,160$499.75$580k45,61724 d ago
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-125$500.80$63k45,49224 d ago
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-320$501.58$161k45,17224 d ago
Sep 17, 2026MOption exercise
Stock Optionderivative10b5-1
-8,300$0.00$047,54024 d ago

Related signals

Other insiders at UNITED THERAPEUTICS Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$5.1M
9,500 shares
-3%
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$5.2M
9,500 shares
-3%
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$5.1M
9,500 shares
-3%
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$5.1M
9,500 shares
-3%
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$5.2M
9,500 shares
-3%
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$5.5M
9,500 shares
-3%
18Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Paul A Mahon
EVP & GENERAL COUNSEL
$4.7M
8,300 shares
-16%
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$3.9M
7,580 shares
-2%
38Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$1.1M
1,920 shares
-1%
23Weak
UTHRsell 210b5-1
UNITED THERAPEUTICS Corp
Martine A Rothblatt
Chairperson & CEO
$4.5M
9,500 shares
-3%

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.

Paul A Mahon sold $4.1M of UTHR | InsiderTell