DISC MEDICINE INC (IRON) — insider trading
Health Care · NASDAQ
DISC MEDICINE INC (IRON) has 99 reported SEC Form 4 insider transactions in our data, including 52 open-market sales among the most recent 99 (latest 2026-10-21).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-21 | Bitterman Kevin | Director | Open-market sale | 266 | $80.23 | $21.3K | Form 4 |
| 2026-10-21 | Bitterman Kevin | Director | Open-market sale | 11,470 | $80.23 | $920.2K | Form 4 |
| 2026-10-21 | Bitterman Kevin | Director | Open-market sale | 13,783 | $80.23 | $1.11M | Form 4 |
| 2026-10-20 | Bitterman Kevin | Director | Open-market sale | 55 | $79.95 | $4.4K | Form 4 |
| 2026-10-20 | Bitterman Kevin | Director | Open-market sale | 2,388 | $79.95 | $190.9K | Form 4 |
| 2026-10-20 | Bitterman Kevin | Director | Open-market sale | 2,869 | $79.95 | $229.4K | Form 4 |
| 2026-10-19 | Bitterman Kevin | Director | Open-market sale | 115 | $79.97 | $9.2K | Form 4 |
| 2026-10-19 | Bitterman Kevin | Director | Open-market sale | 4,942 | $79.97 | $395.2K | Form 4 |
| 2026-10-19 | Bitterman Kevin | Director | Open-market sale | 5,937 | $79.97 | $474.8K | Form 4 |
| 2026-09-15 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion (derivative) | 36,000 | — | $0 | Form 4 |
| 2026-09-15 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion | 36,000 | $1.01 | $36.4K | Form 4 |
| 2026-09-11 | Bitterman Kevin | Director | Option exercise / conversion (derivative) | 10,000 | — | $0 | Form 4 |
| 2026-09-11 | Bitterman Kevin | Director | Option exercise / conversion (derivative) | 10,000 | — | $0 | Form 4 |
| 2026-09-11 | Bitterman Kevin | Director | Option exercise / conversion (derivative) | 7,136 | — | $0 | Form 4 |
| 2026-09-11 | Bitterman Kevin | Director | Open-market sale | 27,136 | $70.11 | $1.90M | Form 4 |
| 2026-09-11 | Bitterman Kevin | Director | Option exercise / conversion | 10,000 | $50.86 | $508.6K | Form 4 |
| 2026-09-11 | Bitterman Kevin | Director | Option exercise / conversion | 10,000 | $38.85 | $388.5K | Form 4 |
| 2026-09-11 | Bitterman Kevin | Director | Option exercise / conversion | 7,136 | $45.69 | $326.0K | Form 4 |
| 2026-09-04 | Bitterman Kevin | Director | Open-market sale | 18 | $79.96 | $1.4K | Form 4 |
| 2026-09-04 | Bitterman Kevin | Director | Open-market sale | 759 | $79.96 | $60.7K | Form 4 |
| 2026-09-04 | Bitterman Kevin | Director | Open-market sale | 912 | $79.96 | $72.9K | Form 4 |
| 2026-09-03 | Bitterman Kevin | Director | Open-market sale | 54 | $79.98 | $4.3K | Form 4 |
| 2026-09-03 | Bitterman Kevin | Director | Open-market sale | 2,339 | $79.98 | $187.1K | Form 4 |
| 2026-09-03 | Bitterman Kevin | Director | Open-market sale | 2,810 | $79.98 | $224.7K | Form 4 |
| 2026-09-02 | Bitterman Kevin | Director | Open-market sale | 2 | $80.98 | $162 | Form 4 |
| 2026-09-02 | Bitterman Kevin | Director | Open-market sale | 9 | $80.98 | $729 | Form 4 |
| 2026-09-02 | Bitterman Kevin | Director | Open-market sale | 10 | $80.98 | $810 | Form 4 |
| 2026-09-02 | Bitterman Kevin | Director | Open-market sale | 511 | $80.17 | $41.0K | Form 4 |
| 2026-09-02 | Bitterman Kevin | Director | Open-market sale | 22,090 | $80.17 | $1.77M | Form 4 |
| 2026-09-02 | Bitterman Kevin | Director | Open-market sale | 26,542 | $80.17 | $2.13M | Form 4 |
| 2026-09-01 | Bitterman Kevin | Director | Open-market sale | 1 | $79.95 | $80 | Form 4 |
| 2026-09-01 | Bitterman Kevin | Director | Open-market sale | 58 | $79.95 | $4.6K | Form 4 |
| 2026-09-01 | Bitterman Kevin | Director | Open-market sale | 70 | $79.95 | $5.6K | Form 4 |
| 2026-08-25 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 8,796 | — | $0 | Form 4 |
| 2026-08-25 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 8,796 | $83.12 | $731.1K | Form 4 |
| 2026-08-25 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 8,796 | $13.50 | $118.7K | Form 4 |
| 2026-08-24 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 300 | — | $0 | Form 4 |
| 2026-08-24 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 300 | $82.53 | $24.8K | Form 4 |
| 2026-08-24 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 300 | $13.50 | $4.0K | Form 4 |
| 2026-08-17 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion (derivative) | 33,000 | — | $0 | Form 4 |
| 2026-08-17 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 11,888 | $79.84 | $949.2K | Form 4 |
| 2026-08-17 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 12,712 | $79.20 | $1.01M | Form 4 |
| 2026-08-17 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 8,400 | $78.11 | $656.1K | Form 4 |
| 2026-08-17 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion | 33,000 | $13.50 | $445.5K | Form 4 |
| 2026-08-12 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 804 | — | $0 | Form 4 |
| 2026-08-12 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 804 | $82.64 | $66.4K | Form 4 |
| 2026-08-12 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 804 | $13.50 | $10.9K | Form 4 |
| 2026-08-06 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion (derivative) | 5,000 | — | $0 | Form 4 |
| 2026-08-06 | Khara Rahul | Officer (Chief Legal Officer) | Open-market sale | 5,000 | $80.00 | $400.0K | Form 4 |
| 2026-08-06 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion | 5,000 | $14.69 | $73.5K | Form 4 |
| 2026-07-13 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion (derivative) | 7,416 | — | $0 | Form 4 |
| 2026-07-13 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion (derivative) | 25,584 | — | $0 | Form 4 |
| 2026-07-13 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 6,400 | $76.05 | $486.7K | Form 4 |
| 2026-07-13 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 16,896 | $74.95 | $1.27M | Form 4 |
| 2026-07-13 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 9,704 | $74.27 | $720.7K | Form 4 |
| 2026-07-13 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion | 7,416 | $13.50 | $100.1K | Form 4 |
| 2026-07-13 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion | 25,584 | $9.86 | $252.3K | Form 4 |
| 2026-07-07 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 100 | — | $0 | Form 4 |
| 2026-07-07 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 100 | $82.50 | $8.3K | Form 4 |
| 2026-07-07 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 100 | $13.50 | $1.4K | Form 4 |
| 2026-06-29 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion (derivative) | 1,649 | — | $0 | Form 4 |
| 2026-06-29 | Khara Rahul | Officer (Chief Legal Officer) | Open-market sale | 1,649 | $75.00 | $123.7K | Form 4 |
| 2026-06-29 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion | 1,649 | $14.69 | $24.2K | Form 4 |
| 2026-06-26 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 300 | — | $0 | Form 4 |
| 2026-06-26 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 300 | $72.50 | $21.8K | Form 4 |
| 2026-06-26 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 300 | $13.50 | $4.0K | Form 4 |
| 2026-06-26 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion (derivative) | 851 | — | $0 | Form 4 |
| 2026-06-26 | Khara Rahul | Officer (Chief Legal Officer) | Open-market sale | 851 | $75.00 | $63.8K | Form 4 |
| 2026-06-26 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion | 851 | $14.69 | $12.5K | Form 4 |
| 2026-06-22 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 9,700 | — | $0 | Form 4 |
| 2026-06-22 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 9,700 | $72.66 | $704.8K | Form 4 |
| 2026-06-22 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 9,700 | $13.50 | $130.9K | Form 4 |
| 2026-06-18 | AHMED NADIM | Director | Grant / award / vesting (derivative) | 5,176 | — | $0 | Form 4 |
| 2026-06-18 | Bitterman Kevin | Director | Grant / award / vesting (derivative) | 6,212 | — | $0 | Form 4 |
| 2026-06-18 | Chin Mark | Director | Grant / award / vesting (derivative) | 6,212 | — | $0 | Form 4 |
| 2026-06-18 | GEMAYEL GEORGES | Director | Grant / award / vesting (derivative) | 6,212 | — | $0 | Form 4 |
| 2026-06-18 | Nicholson Donald William | Director | Grant / award / vesting (derivative) | 6,212 | — | $0 | Form 4 |
| 2026-06-18 | Ratcliffe Liam | Director | Grant / award / vesting (derivative) | 6,212 | — | $0 | Form 4 |
| 2026-06-18 | White William Richard | Director | Grant / award / vesting (derivative) | 6,212 | — | $0 | Form 4 |
| 2026-06-18 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion (derivative) | 34,000 | — | $0 | Form 4 |
| 2026-06-18 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 1,551 | $71.61 | $111.1K | Form 4 |
| 2026-06-18 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 9,522 | $70.70 | $673.2K | Form 4 |
| 2026-06-18 | Quisel John D | Director, Officer (Chief Executive Officer) | Open-market sale | 22,927 | $69.92 | $1.60M | Form 4 |
| 2026-06-18 | Quisel John D | Director, Officer (Chief Executive Officer) | Option exercise / conversion | 34,000 | $9.86 | $335.2K | Form 4 |
| 2026-06-18 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion (derivative) | 7,500 | — | $0 | Form 4 |
| 2026-06-18 | Khara Rahul | Officer (Chief Legal Officer) | Open-market sale | 500 | $71.62 | $35.8K | Form 4 |
| 2026-06-18 | Khara Rahul | Officer (Chief Legal Officer) | Open-market sale | 1,600 | $70.73 | $113.2K | Form 4 |
| 2026-06-18 | Khara Rahul | Officer (Chief Legal Officer) | Open-market sale | 5,400 | $69.94 | $377.7K | Form 4 |
| 2026-06-18 | Khara Rahul | Officer (Chief Legal Officer) | Option exercise / conversion | 7,500 | $14.69 | $110.2K | Form 4 |
| 2026-06-16 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 13,351 | — | $0 | Form 4 |
| 2026-06-16 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion (derivative) | 5,261 | — | $0 | Form 4 |
| 2026-06-16 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 6,961 | $69.92 | $486.7K | Form 4 |
| 2026-06-16 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Open-market sale | 11,651 | $68.76 | $801.1K | Form 4 |
| 2026-06-16 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 13,351 | $9.86 | $131.6K | Form 4 |
| 2026-06-16 | Yu Jonathan Yen-Wen | Officer (Chief Operating Officer) | Option exercise / conversion | 5,261 | $9.86 | $51.9K | Form 4 |
| 2026-04-14 | Franchi Jean M. | Officer (Chief Financial Officer) | Open-market sale | 6,257 | $69.24 | $433.2K | Form 4 |
| 2026-04-13 | Franchi Jean M. | Officer (Chief Financial Officer) | Open-market sale | 400 | $69.00 | $27.6K | Form 4 |
| 2026-04-13 | Savage William Jacob | Officer (Chief Medical Officer) | Open-market sale | 2,200 | $66.81 | $147.0K | Form 4 |
| 2026-04-13 | Savage William Jacob | Officer (Chief Medical Officer) | Open-market sale | 3,531 | $66.12 | $233.5K | Form 4 |
Ask the chat about IRON's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: DISC MEDICINE INC (IRON).
Last updated 2026-10-21 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.