Skip to content
sellModerate

William John Sibold sold $3.2M of MDGL

President and CEO at MADRIGAL PHARMACEUTICALS, INC.. 7,279 shares at an average of $445.63, traded Sep 9, 2025, filed Sep 9, 2025.

Warning score
50
Value
$3.2M
7,279 shares
Holdings after
102,474
-7% from before
From 52-week low
+122%
low $202.48, close $448.73
From 52-week high
-1%
high $453.80, as of Sep 9, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $3.2M at market
    +25
  • Share of holdings sold
    Sold 6.6% of holdings
    0
  • 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.

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.

MDGLOct 9, 2026 · close 471.75
Since filing Sep 9, 2025: +5.1%SPY +21.3% · excess -16.2%

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 0001518611-25-000009, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 9, 2025SOpen-market sale
Common Stock
-7,279$445.63$3.2M102,474Sep 9, 2025

Related signals

Other insiders at MADRIGAL PHARMACEUTICALS, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
30Weak
MDGLsell10b5-1
MADRIGAL PHARMACEUTICALS, INC.
William John Sibold
President and CEO
$6.2M
11,583 shares
-6%
25Weak
MDGLsell 410b5-1
MADRIGAL PHARMACEUTICALS, INC.
Paul A Friedman
director
$14M
24,800 shares
-12%
20Weak
MDGLsell 410b5-1
MADRIGAL PHARMACEUTICALS, INC.
Rebecca Taub
director
$10M
18,650 shares
-4%
50Moderate
MDGLsell 5
MADRIGAL PHARMACEUTICALS, INC.
William John Sibold
President and CEO
$1.4M
2,400 shares
-2%
37Weak
MDGLsell 510b5-1
MADRIGAL PHARMACEUTICALS, INC.
Mardi Dier
EVP and CFO
$2.4M
4,173 shares
-29%
40Moderate
MDGLsell 410b5-1
MADRIGAL PHARMACEUTICALS, INC.
Carole Huntsman
Chief Commercial Officer
$1.1M
1,958 shares
-16%
30Weak
MDGLsell 310b5-1
MADRIGAL PHARMACEUTICALS, INC.
Richard S Levy
director
$4.4M
8,500 shares
-29%
53Moderate
MDGLsell 2
MADRIGAL PHARMACEUTICALS, INC.
Kenneth Bate
director
$8.0M
16,575 shares
-86%
45Moderate
MDGLsell 510b5-1
MADRIGAL PHARMACEUTICALS, INC.
William John Sibold
President and CEO
$3.0M
7,616 shares
-6%
46Moderate
MDGLbuy
MADRIGAL PHARMACEUTICALS, INC.
Baker Bros. Advisors LP
director
$25M
68,618 shares
+36%

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.

William John Sibold sold $3.2M of MDGL | InsiderTell