Disc Medicine, Inc. (IRON) insider trading.
In Q3 2026, insiders at Disc Medicine, Inc. reported 39 non-derivative transactions on 10 Forms 3, 4 and 5: 0 open-market purchases and 27 sales worth $12.7M.
- Transactions
- 39
- Purchases (P)
- 0
- Sales (S)
- 27
- Net shares, P minus S
- -164,321
- Insiders
- 4
- Last filed
- 2026-09-16
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Bitterman Kevin | Director | 19 | 0 | 16 |
| Quisel John D | Director, Officer · Chief Executive Officer | 10 | 0 | 6 |
| Yu Jonathan Yen-Wen | Officer · Chief Operating Officer | 8 | 0 | 4 |
| Khara Rahul | Officer · Chief Legal Officer | 2 | 0 | 1 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-15 | Quisel John D | M (A) | 36,000 | $1.01 | 262,064 | Form 4 |
| 2026-09-11 | Bitterman Kevin | M (A) | 10,000 | $50.86 | 27,136 | Form 4 |
| 2026-09-11 | Bitterman Kevin | S (D) | 27,136 | $70.11 | 0 | Form 4 |
| 2026-09-11 | Bitterman Kevin | M (A) | 10,000 | $38.85 | 17,136 | Form 4 |
| 2026-09-11 | Bitterman Kevin | M (A) | 7,136 | $45.69 | 7,136 | Form 4 |
| 2026-09-04 | Bitterman Kevin | S (D) | 912 | $79.96 | 318,866 | Form 4 |
| 2026-09-04 | Bitterman Kevin | S (D) | 18 | $79.96 | 13,427 | Form 4 |
| 2026-09-04 | Bitterman Kevin | S (D) | 759 | $79.96 | 312,230 | Form 4 |
| 2026-09-03 | Bitterman Kevin | S (D) | 54 | $79.98 | 13,445 | Form 4 |
| 2026-09-03 | Bitterman Kevin | S (D) | 2,810 | $79.98 | 319,778 | Form 4 |
| 2026-09-03 | Bitterman Kevin | S (D) | 2,339 | $79.98 | 312,989 | Form 4 |
| 2026-09-02 | Bitterman Kevin | S (D) | 26,542 | $80.17 | 322,598 | Form 4 |
| 2026-09-02 | Bitterman Kevin | S (D) | 22,090 | $80.17 | 315,337 | Form 4 |
| 2026-09-02 | Bitterman Kevin | S (D) | 10 | $80.98 | 322,588 | Form 4 |
| 2026-09-02 | Bitterman Kevin | S (D) | 9 | $80.98 | 315,328 | Form 4 |
| 2026-09-02 | Bitterman Kevin | S (D) | 2 | $80.98 | 13,499 | Form 4 |
| 2026-09-02 | Bitterman Kevin | S (D) | 511 | $80.17 | 13,501 | Form 4 |
| 2026-09-01 | Bitterman Kevin | S (D) | 70 | $79.95 | 349,140 | Form 4 |
| 2026-09-01 | Bitterman Kevin | S (D) | 58 | $79.95 | 337,427 | Form 4 |
| 2026-09-01 | Bitterman Kevin | S (D) | 1 | $79.95 | 14,012 | Form 4 |
| 2026-08-25 | Yu Jonathan Yen-Wen | S (D) | 8,796 | $83.12 | 54,324 | Form 4 |
| 2026-08-25 | Yu Jonathan Yen-Wen | M (A) | 8,796 | $13.5 | 63,120 | Form 4 |
| 2026-08-24 | Yu Jonathan Yen-Wen | S (D) | 300 | $82.53 | 54,324 | Form 4 |
| 2026-08-24 | Yu Jonathan Yen-Wen | M (A) | 300 | $13.5 | 54,624 | Form 4 |
| 2026-08-17 | Quisel John D | M (A) | 33,000 | $13.5 | 259,064 | Form 4 |
| 2026-08-17 | Quisel John D | S (D) | 12,712 | $79.2 | 237,952 | Form 4 |
| 2026-08-17 | Quisel John D | S (D) | 11,888 | $79.84 | 226,064 | Form 4 |
| 2026-08-17 | Quisel John D | S (D) | 8,400 | $78.11 | 250,664 | Form 4 |
| 2026-08-12 | Yu Jonathan Yen-Wen | S (D) | 804 | $82.64 | 54,324 | Form 4 |
| 2026-08-12 | Yu Jonathan Yen-Wen | M (A) | 804 | $13.5 | 55,128 | Form 4 |
| 2026-08-06 | Khara Rahul | S (D) | 5,000 | $80 | 52,324 | Form 4 |
| 2026-08-06 | Khara Rahul | M (A) | 5,000 | $14.69 | 57,324 | Form 4 |
| 2026-07-13 | Quisel John D | S (D) | 16,896 | $74.95 | 232,464 | Form 4 |
| 2026-07-13 | Quisel John D | S (D) | 6,400 | $76.05 | 226,064 | Form 4 |
| 2026-07-13 | Quisel John D | M (A) | 25,584 | $9.86 | 251,648 | Form 4 |
| 2026-07-13 | Quisel John D | M (A) | 7,416 | $13.5 | 259,064 | Form 4 |
| 2026-07-13 | Quisel John D | S (D) | 9,704 | $74.27 | 249,360 | Form 4 |
| 2026-07-07 | Yu Jonathan Yen-Wen | M (A) | 100 | $13.5 | 54,424 | Form 4 |
| 2026-07-07 | Yu Jonathan Yen-Wen | S (D) | 100 | $82.5 | 54,324 | Form 4 |
Transaction codes in this quarter
Get IRON insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1816736&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · IRON company page · Disc Medicine, Inc. on SEC.gov
Questions
Are insiders buying or selling Disc Medicine, Inc. (IRON)?
In Q3 2026, insiders at Disc Medicine, Inc. reported 39 non-derivative transactions on 10 Forms 3, 4 and 5: 0 open-market purchases and 27 sales worth $12.7M. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Disc Medicine, Inc. insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/iron.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.