MGX's three largest insider shareholders as of June 12, 2026 are Healthcare Llc Bayer (TenPercentOwner, 4.05Mn shares), Brian C. Thomas (Chief Executive Officer, 2.51Mn shares), Sebastian Bernales (Director, 1.90Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Healthcare Llc Bayer | - | 4,050,997 | 0 | 15 Feb, 2024 |
| Holdings A/S Novo | - | 1,739,175 | 0 | 15 Feb, 2024 |
| Luis Borges | Chief Scientific Officer | 69,316 | 0 | 03 Apr, 2024 |
| Sarah B. Noonberg | Chief Medical Officer | 109,135 | 0 | 09 Jun, 2025 |
| Pamela Wapnick | Chief Financial Officer | 211,375 | 0 | 03 Apr, 2026 |
| Sebastian Bernales | - | 0 | 1,896,445 | 14 Feb, 2024 |
| Simon Harnest | - | 122,664 | 0 | 03 Apr, 2024 |
| Simren Delaney | - | 93,892 | 0 | 03 Apr, 2024 |
| Jian Irish | Chief Executive Officer | 379,770 | 0 | 03 Apr, 2026 |
| Brian C. Thomas | Chief Executive Officer | 2,510,960 | 0 | 08 Dec, 2025 |
| Matthew Wein | - | 125,549 | 0 | 03 Apr, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Jian Irish | Common Stock | A | 46,000 | $0.00 | 379,770 | D | A |
| 01 Apr, 2026 | Matthew Wein | Common Stock | A | 11,000 | $0.00 | 125,549 | D | A |
| 01 Apr, 2026 | Pamela Wapnick | Common Stock | A | 24,000 | $0.00 | 211,375 | D | A |
| 01 Apr, 2026 | Matthew Wein | Common Stock | A | 11,000 | $0.00 | 125,549 | D | A |
| 01 Apr, 2026 | Pamela Wapnick | Common Stock | A | 24,000 | $0.00 | 211,375 | D | A |
| 01 Apr, 2026 | Pamela Wapnick | Stock Option (Right to Buy) | A | 144,000 | $0.00 | 144,000 | D | A |
| 01 Apr, 2026 | Matthew Wein | Stock Option (Right to Buy) | A | 68,000 | $0.00 | 68,000 | D | A |
| 01 Apr, 2026 | Matthew Wein | Stock Option (Right to Buy) | A | 68,000 | $0.00 | 68,000 | D | A |
| 01 Apr, 2026 | Pamela Wapnick | Stock Option (Right to Buy) | A | 144,000 | $0.00 | 144,000 | D | A |
| 01 Apr, 2026 | Jian Irish | Stock Option (Right to Buy) | A | 276,000 | $0.00 | 276,000 | D | A |
| 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 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 | 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 |
| 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 | 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 |