Kevin Bitterman sold $69k of IRON
director at Disc Medicine, Inc.. 754 shares at an average of $91.47, traded Dec 17, 2025, filed Dec 18, 2025.
Score components
- +15RoleDirector
- +8Trade size$69k at market
- 0Share of holdings soldSold 0.2% of holdings
- +15Cluster3 insiders selling within 14 days
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 -21.6%, 3m -34.6%, 6m -21.7%.
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.
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 0001591747-25-000008, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 17, 2025 | SOpen-market sale Common Stockindirect: See footnote | -393 | $91.47 | $36k | 349,210 | Dec 18, 2025 |
| Dec 17, 2025 | SOpen-market sale Common Stockindirect: See footnote | -213 | $91.47 | $19k | 337,485 | Dec 18, 2025 |
| Dec 17, 2025 | SOpen-market sale Common Stockindirect: See footnote | -148 | $91.47 | $14k | 14,013 | Dec 18, 2025 |
Related signals
Other insiders at Disc Medicine, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 45Moderate | IRONsell Disc Medicine, Inc. | Kevin Bitterman director | $1.9M 27,136 shares | -100% | |
| 14Weak | Disc Medicine, Inc. | Kevin Bitterman director | $135k 1,689 shares | -1% | |
| 33Weak | Disc Medicine, Inc. | Kevin Bitterman director | $4.4M 54,496 shares | -16% | |
| 27Weak | Disc Medicine, Inc. | Jonathan Yen-Wen Yu Chief Operating Officer | $756k 9,096 shares | -17% | |
| 35Weak | Disc Medicine, Inc. | John D Quisel Chief Executive Officer | $2.6M 33,000 shares | -13% | |
| 8Weak | Disc Medicine, Inc. | Jonathan Yen-Wen Yu Chief Operating Officer | $66k 804 shares | -1% | |
| 11Weak | Disc Medicine, Inc. | Rahul Khara Chief Legal Officer | $400k 5,000 shares | -9% | |
| 28Weak | Disc Medicine, Inc. | John D Quisel Chief Executive Officer | $2.5M 33,000 shares | -13% | |
| 0Weak | Disc Medicine, Inc. | Jonathan Yen-Wen Yu Chief Operating Officer | $8,250 100 shares | -0% | |
| 0Weak | Disc Medicine, Inc. | Jonathan Yen-Wen Yu Chief Operating Officer | $22k 300 shares | -1% |
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.