According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Disc Medicine are TenPercentOwner Dmi Llc Ai (2.81Mn shares), TenPercentOwner Venture Fund X, L.P. Atlas (1.60Mn shares), TenPercentOwner Holdings A/S Novo (1.09Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Braden Michael Leonard | 524,750 | 27 Oct, 2022 | |
| Dmi Llc Ai | 2,814,379 | 24 Oct, 2025 | |
| Venture Fund X, L.P. Atlas | 1,600,512 | 25 Jan, 2024 | |
| Holdings A/S Novo | 1,090,772 | 28 Jun, 2023 | |
| John D Quisel | Chief Executive Officer | 226,064 | 17 Feb, 2026 |
| Mona Ashiya | 186,541 | 20 Dec, 2023 | |
| Advisors Llc Orbimed | 186,541 | 20 Dec, 2023 | |
| William Jacob Savage | Chief Medical Officer | 92,589 | 17 Feb, 2026 |
| Jean M. Franchi | Chief Financial Officer | 82,499 | 11 Feb, 2026 |
| Pamela Stephenson | Chief Commercial Officer | 80,998 | 17 Feb, 2026 |
| Jonathan Yen-Wen Yu | Chief Operating Officer | 54,324 | 17 Feb, 2026 |
| Rahul Khara | Chief Legal Officer | 52,173 | 17 Feb, 2026 |
| Joanne Bryce | Chief Financial Officer | 23,665 | 01 Mar, 2024 |
| Brian Piekos | Cfo | 1,762 | 02 Jun, 2022 |
| Kevin Bitterman | 14,013 | 16 Dec, 2025 | |
| Jason Patrick Meyenburg | President & Ceo | 1,300 | 18 May, 2021 |
| Brian Richard Macdonald | Chief Innovation Officer | 12,276 | 30 Jun, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Feb, 2026 | John D Quisel | Common Stock | D | 13,264 | $62.86 | 226,064 | D | S |
| 17 Feb, 2026 | Pamela Stephenson | Common Stock | D | 5,531 | $62.86 | 80,998 | D | S |
| 17 Feb, 2026 | Jonathan Yen-Wen Yu | Common Stock | D | 3,231 | $62.86 | 54,324 | D | S |
| 17 Feb, 2026 | Rahul Khara | Common Stock | D | 2,853 | $62.86 | 52,173 | D | S |
| 17 Feb, 2026 | William Jacob Savage | Common Stock | D | 3,256 | $62.86 | 92,589 | D | S |
| 10 Feb, 2026 | John D Quisel | Common Stock | A | 55,200 | $0.00 | 239,328 | D | A |
| 10 Feb, 2026 | Jean M. Franchi | Common Stock | A | 19,000 | $0.00 | 82,499 | D | A |
| 10 Feb, 2026 | Pamela Stephenson | Common Stock | A | 17,000 | $0.00 | 86,529 | D | A |
| 10 Feb, 2026 | Jonathan Yen-Wen Yu | Common Stock | A | 17,000 | $0.00 | 57,555 | D | A |
| 10 Feb, 2026 | Rahul Khara | Common Stock | A | 17,000 | $0.00 | 55,026 | D | A |
| 10 Feb, 2026 | William Jacob Savage | Common Stock | A | 17,000 | $0.00 | 95,845 | D | A |
| 20 Jan, 2026 | Rahul Khara | Common Stock | A | 1,000 | $13.50 | 38,793 | D | M |
| 20 Jan, 2026 | Rahul Khara | Common Stock | D | 1,000 | $69.74 | 37,793 | D | S |
| 02 Jan, 2026 | Rahul Khara | Common Stock | D | 1,157 | $79.27 | 37,793 | D | S |
| 02 Jan, 2026 | Rahul Khara | Common Stock | D | 4,993 | $78.62 | 38,950 | D | S |
| 02 Jan, 2026 | Rahul Khara | Common Stock | A | 6,500 | $13.50 | 44,293 | D | M |
| 02 Jan, 2026 | Rahul Khara | Common Stock | D | 350 | $77.67 | 43,943 | D | S |
| 22 Dec, 2025 | William Jacob Savage | Common Stock | A | 219 | $9.86 | 78,746 | D | M |
| 22 Dec, 2025 | William Jacob Savage | Common Stock | A | 99 | $13.50 | 78,845 | D | M |
| 22 Dec, 2025 | William Jacob Savage | Common Stock | A | 2,825 | $9.86 | 78,527 | D | M |