Who owns MGTX
132 institutions reported holding MGTX for 2026Q1, together 83% of the company, more than the 129 a quarter earlier.
132
Institutions reporting a position · as of 2026Q1 · up from 129 the quarter before
- Shares held by institutions
- 67.4M
Shares held by institutions · 83% of the company · long US equity positions only, as reported on Form 13F
- Reported value
- $583M
Reported value · at 2026-03-31 prices, not today's
- Top 5 holders
- 49%
Top 5 holders · of the whole company, between five filers
Details›
- Reporting quarter2026-03-31
- 2026Q1
- Quarters on record
- 32
- New positions
- 16
- Positions exited
- 15
- Added to
- 47
- Reduced
- 38
- Top 10 holdersof the company
- 66%
| Quarter | Filers | Shares | Reported value |
|---|---|---|---|
| 2026Q1 | 132 | 67.4M | $583M |
| 2025Q4 | 129 | 65.2M | $518M |
| 2025Q3 | 121 | 64.1M | $528M |
| 2025Q2 | 111 | 64.3M | $420M |
| 2025Q1 | 117 | 60.0M | $407M |
| 2024Q4 | 101 | 58.1M | $354M |
| 2024Q3 | 98 | 45.2M | $189M |
| 2024Q2 | 93 | 40.5M | $170M |
| 2024Q1 | 96 | 39.3M | $238M |
| 2023Q4 | 86 | 39.2M | $275M |
| 2023Q3 | 75 | 37.8M | $186M |
| 2023Q2 | 79 | 37.8M | $254M |
| 2023Q1 | 91 | 28.7M | $149M |
| 2022Q4 | 97 | 29.6M | $193M |
| 2022Q3 | 99 | 28.0M | $234M |
| 2022Q2 | 106 | 28.6M | $216M |
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Sanofi | 12.2M | 15% | $106M |
| PERCEPTIVE ADVISORS LLC | 10.3M | 13% | $89M |
| Rubric Capital Management LP | 7.0M | 8.6% | $61M |
| JOHNSON & JOHNSON | 6.6M | 8.2% | $58M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 4.0M | 4.9% | $35M |
| MILLENNIUM MANAGEMENT LLC | 3.5M | 4.3% | $30M |
| BlackRock Inc. | 3.2M | 3.9% | $27M |
| Prosight Management, LP | 2.6M | 3.2% | $23M |
| 683 Capital Management, LLC | 2.5M | 3.0% | $21M |
| Opaleye Management Inc. | 2.1M | 2.6% | $18M |
SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.
reading the register…