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sellWeak cluster of 310b5-1 plan

John D Quisel sold $1.9M of IRON

Chief Executive Officer at Disc Medicine, Inc.. 34,800 shares at an average of $55.33, traded Jul 9, 2025, filed Jul 11, 2025.

Warning score
35
Value
$1.9M
34,800 shares
Holdings after
161,828
-18% from before
From 52-week low
+63%
low $34.28, close $55.86
From 52-week high
-17%
high $67.47, as of Jul 9, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $1.9M at market
    +25
  • Share of holdings sold
    Sold 18% 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.

IRONOct 9, 2026 · close 62.06
Since filing Jul 11, 2025: +9.0%SPY +26.5% · excess -17.5%

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 0000950170-25-095338, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 9, 2025MOption exercise
Common Stock10b5-1
+34,800$9.86$343k196,628Jul 11, 2025
Jul 9, 2025SOpen-market sale
Common Stock10b5-1
-31,207$55.23$1.7M165,421Jul 11, 2025
Jul 9, 2025SOpen-market sale
Common Stock10b5-1
-3,593$56.20$202k161,828Jul 11, 2025
Jul 9, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-34,800$0.00$0115,375Jul 11, 2025

Related signals

Other insiders at Disc Medicine, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
45Moderate
IRONsell
Disc Medicine, Inc.
Kevin Bitterman
director
$1.9M
27,136 shares
-100%
6Weak
IRONsell10b5-1
Disc Medicine, Inc.
Kevin Bitterman
director
$135k
1,689 shares
-1%
25Weak
IRONsell10b5-1
Disc Medicine, Inc.
Kevin Bitterman
director
$4.4M
54,496 shares
-16%
28Weak
IRONsell 610b5-1
Disc Medicine, Inc.
William Jacob Savage
Chief Medical Officer
$486k
7,378 shares
-8%
17Weak
IRONsell 610b5-1
Disc Medicine, Inc.
Jean M. Franchi
Chief Financial Officer
$24k
353 shares
-0%
43Moderate
IRONsell 610b5-1
Disc Medicine, Inc.
Jean M. Franchi
Chief Financial Officer
$720k
11,156 shares
-14%
63Notable
IRONsell 6
Disc Medicine, Inc.
John D Quisel
Chief Executive Officer
$834k
13,264 shares
-6%
47Moderate
IRONsell 6
Disc Medicine, Inc.
Jonathan Yen-Wen Yu
Chief Operating Officer
$203k
3,231 shares
-6%
42Moderate
IRONsell 6
Disc Medicine, Inc.
William Jacob Savage
Chief Medical Officer
$205k
3,256 shares
-3%
45Moderate
IRONsell 6
Disc Medicine, Inc.
Pamela Stephenson
Chief Commercial Officer
$348k
5,531 shares
-6%

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.

John D Quisel sold $1.9M of IRON | InsiderTell