MGX's three largest insider shareholders as of March 23, 2026 are Sebastian Bernales (Director, 2.67Mn shares), Brian C. Thomas (Director, 2.51Mn shares), Holdings A/S Novo (TenPercentOwner, 1.74Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Sebastian Bernales | 769,845 | 1,896,445 | 14 Feb, 2024 | |
| Brian C. Thomas | 2,510,960 | 0 | 08 Dec, 2025 | |
| Holdings A/S Novo | 1,739,175 | 0 | 15 Feb, 2024 | |
| Jian Irish | Chief Executive Officer | 563,839 | 0 | 08 Dec, 2025 |
| Pamela Wapnick | Chief Financial Officer | 187,375 | 0 | 09 Mar, 2026 |
| Simon Harnest | See Remarks | 122,664 | 0 | 03 Apr, 2024 |
| Matthew Wein | See Remarks | 114,549 | 0 | 09 Mar, 2026 |
| Sarah B. Noonberg | Chief Medical Officer | 109,135 | 0 | 09 Jun, 2025 |
| Simren Delaney | See Remarks | 93,892 | 0 | 03 Apr, 2024 |
| Luis Borges | Chief Scientific Officer | 69,316 | 0 | 03 Apr, 2024 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 05 Mar, 2026 | Matthew Wein | Common Stock | D | 482 | $1.60 | 114,549 | D | S |
| 05 Mar, 2026 | Pamela Wapnick | Common Stock | D | 1,581 | $1.60 | 187,375 | D | S |
| 05 Dec, 2025 | Pamela Wapnick | Common Stock | D | 1,576 | $1.77 | 188,956 | D | S |
| 05 Dec, 2025 | Brian C. Thomas | Common Stock | D | 3,830 | $1.77 | 2,510,960 | D | S |
| 05 Dec, 2025 | Matthew Wein | Common Stock | D | 199 | $1.77 | 115,031 | D | S |
| 05 Dec, 2025 | Jian Irish | Common Stock | D | 1,602 | $1.77 | 563,839 | D | S |
| 02 Sep, 2025 | Laurence Reid | Stock Option (Right to Buy) | A | 42,000 | $0.00 | 42,000 | D | A |
| 10 Jun, 2025 | Juergen Eckhardt | Stock Option (Right to Buy) | A | 21,000 | $0.00 | 21,000 | D | A |
| 10 Jun, 2025 | Eric Bjerkholt | Stock Option (Right to Buy) | A | 8,572 | $0.00 | 8,572 | D | A |
| 06 Jun, 2025 | Sarah B. Noonberg | Common Stock | D | 5,239 | $1.75 | 109,135 | D | S |
| 06 Jun, 2025 | Jian Irish | Common Stock | D | 6,390 | $1.75 | 315,543 | D | S |
| 06 Jun, 2025 | Matthew Wein | Common Stock | D | 199 | $1.75 | 16,693 | D | S |
| 06 Jun, 2025 | Brian C. Thomas | Common Stock | D | 10,785 | $1.75 | 2,517,491 | D | S |
| 06 Jun, 2025 | Pamela Wapnick | Common Stock | D | 1,576 | $1.75 | 72,108 | D | S |
| 01 Apr, 2025 | Brian C. Thomas | Common Stock | A | 32,000 | $0.00 | 2,528,276 | D | A |
| 01 Apr, 2025 | Matthew Wein | Common Stock | A | 3,650 | $0.00 | 13,117 | D | A |
| 01 Apr, 2025 | Pamela Wapnick | Common Stock | A | 14,000 | $0.00 | 73,684 | D | A |
| 01 Apr, 2025 | Jian Irish | Common Stock | A | 23,000 | $0.00 | 321,933 | D | A |
| 01 Apr, 2025 | Sarah B. Noonberg | Common Stock | A | 14,000 | $0.00 | 114,374 | D | A |
| 01 Apr, 2025 | Sarah B. Noonberg | Stock Option (Right to Buy) | A | 84,000 | $0.00 | 84,000 | D | A |