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sellWeak10b5-1 plan

Kevin Bitterman sold $4.4M of IRON

director at Disc Medicine, Inc.. 54,496 shares at an average of $80.15, traded Sep 1, 2026, filed Sep 3, 2026.

Warning score
25
Value
$4.4M
54,496 shares
Holdings after
13,445
-16% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Director
    +15
  • Trade size
    $4.4M at market
    +25
  • Share of holdings sold
    Sold 16% of holdings
    +5
  • Cluster
    No other insider selling within 14 days
    0
  • 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 Sep 3, 2026: -21.8%SPY +0.9% · excess -22.8%

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 0001591747-26-000002, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 1, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-70$79.95$5,597349,14039 d ago
Sep 1, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-58$79.95$4,637337,42739 d ago
Sep 1, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-1$79.95$8014,01239 d ago
Sep 2, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-26,542$80.17$2.1M322,59839 d ago
Sep 2, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-22,090$80.17$1.8M315,33739 d ago
Sep 2, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-511$80.17$41k13,50139 d ago
Sep 2, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-10$80.98$810322,58839 d ago
Sep 2, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-9$80.98$729315,32839 d ago
Sep 2, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-2$80.98$16213,49939 d ago
Sep 3, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-2,810$79.98$225k319,77839 d ago
Sep 3, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-2,339$79.98$187k312,98939 d ago
Sep 3, 2026SOpen-market sale
Common Stockindirect: See footnote10b5-1
-54$79.98$4,31913,44539 d ago

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%
6Weak
IRONsell10b5-1
Disc Medicine, Inc.
Kevin Bitterman
director
$140k
2,287 shares
-0%
20Weak
IRONsell10b5-1
Disc Medicine, Inc.
Kevin Bitterman
director
$2.0M
32,174 shares
-5%
0Weak
IRONsell10b5-1
Disc Medicine, Inc.
Kevin Bitterman
director
$24k
395 shares
-0%
13Weak
IRONsell10b5-1
Disc Medicine, Inc.
Kevin Bitterman
director
$518k
8,492 shares
-1%
40Moderate
IRONsell
Disc Medicine, Inc.
Kevin Bitterman
director
$2.6M
42,870 shares
-6%
21Weak
IRONsell
Disc Medicine, Inc.
Kevin Bitterman
director
$41k
664 shares
-0%
20Weak
IRONsell 210b5-1
Disc Medicine, Inc.
Jean M. Franchi
Chief Financial Officer
$105k
2,000 shares
-3%
14Weak
IRONsell 210b5-1
Disc Medicine, Inc.
William Jacob Savage
Chief Medical Officer
$150k
2,996 shares
-5%

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.

Kevin Bitterman sold $4.4M of IRON | InsiderTell