Who Owns MEIRAGTX HLDGS PLC (MGTX)? -- Institutional Holders (2026-06-30)
168 institutions reported holding $1.07B of MEIRAGTX HLDGS PLC (MGTX) in SEC 13F filings for 2026-06-30. Largest institutional holders: Sanofi ($164.8M), PERCEPTIVE ADVISORS LLC ($145.7M), Rubric Capital Management LP ($122.9M), JOHNSON & JOHNSON ($89.7M), BlackRock, Inc. ($64.3M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | Sanofi | $164.8M | 12.2M | Hold |
| 2 | PERCEPTIVE ADVISORS LLC | $145.7M | 10.8M | Added |
| 3 | Rubric Capital Management LP | $122.9M | 9.1M | Added |
| 4 | JOHNSON & JOHNSON | $89.7M | 6.6M | Hold |
| 5 | BlackRock, Inc. | $64.3M | 4.8M | Added |
| 6 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $59.4M | 4.4M | Added |
| 7 | Opaleye Management Inc. | $48.0M | 3.5M | Added |
| 8 | MILLENNIUM MANAGEMENT LLC | $40.1M | 3.0M | Trimmed |
| 9 | 683 Capital Management, LLC | $31.1M | 2.3M | Trimmed |
| 10 | Woodline Partners LP | $20.3M | 1.5M | Added |
| 11 | STATE STREET CORP | $18.8M | 1.4M | Added |
| 12 | MORGAN STANLEY | $17.7M | 1.3M | Trimmed |
| 13 | Knoll Capital Management, LLC | $16.9M | 1.2M | Hold |
| 14 | KENNEDY CAPITAL MANAGEMENT LLC | $14.9M | 1.1M | Added |
| 15 | Long Focus Capital Management, LLC | $14.6M | 1.1M | Added |
| 16 | JACOBS LEVY EQUITY MANAGEMENT, INC | $13.7M | 1.0M | Added |
| 17 | D. E. Shaw & Co., Inc. | $11.5M | 852,902 | Added |
| 18 | HEIGHTS CAPITAL MANAGEMENT, INC | $11.5M | 850,000 | New |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | $11.5M | 849,082 | Added |
| 20 | VANGUARD GROUP INC | $11.2M | 829,600 | Added |
| 21 | J. Goldman & Co LP | $9.3M | 684,772 | Added |
| 22 | CITADEL ADVISORS LLC | $8.8M | 650,489 | Added |
| 23 | Erste Asset Management GmbH | $8.7M | 691,200 | Trimmed |
| 24 | Nuveen, LLC | $8.6M | 639,459 | Added |
| 25 | Jupiter Topco LLC | $6.4M | 475,757 | New |
Source: SEC Form 13F filings · as of 2026-06-30