Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 344174107 since 12/18/2024, largest first.
| Filer | % of Class | Filed | |
|---|---|---|---|
|
Flagship Ventures Fund V, L.P.
13D/A
|
27.2% |
1/13/2026
Event 1/9/2026
|
|
| Flagship Ventures Fund V, L.P. | 15.9% | ||
| Flagship Ventures Fund V General Partner LLC | 15.9% | ||
| Flagship Ventures Opportunities Fund I, L.P. | 2.5% | ||
| Flagship Ventures Opportunities Fund I General Partner LLC | 2.5% | ||
| Flagship Pioneering Special Opportunities Fund II, L.P. | 3.2% | ||
| Flagship Pioneering Special Opportunities Fund II General Partner LLC | 3.2% | ||
| Flagship Pioneering Fund VII, L.P. | 7.1% | ||
| Flagship Pioneering Fund VII General Partner LLC | 7.1% | ||
| Flagship Pioneering, LLC | 10.0% | ||
| Noubar Afeyan | 27.2% | ||
|
Biotechnology Value Fund L P
13G/A
|
14.3% |
10/5/2026
Event 10/1/2026
|
|
| Biotechnology Value Fund L P | 7.6% | ||
| BVF I GP LLC | 7.6% | ||
| Biotechnology Value Fund II LP | 5.4% | ||
| BVF II GP LLC | 5.4% | ||
| Biotechnology Value Trading Fund OS LP | 1.0% | ||
| BVF Partners OS Ltd. | 1.0% | ||
| BVF GP Holdings LLC | 13.0% | ||
| BVF Partners L P/IL | 14.3% | ||
| BVF Inc/IL | 14.3% | ||
| Lampert Mark N | 14.3% | ||
|
FMR LLC
13G/A
|
11.6% |
5/6/2026
Event 3/31/2026
|
|
| FMR LLC | 11.6% | ||
| Abigail P. Johnson | 11.6% | ||
|
James E. Flynn
13G/A
|
8.6% |
5/14/2026
Event 3/31/2026
|
|
| Deerfield Mgmt, L.P. | 8.6% | ||
| Deerfield Management Company, L.P. | 8.6% | ||
| Deerfield Partners, L.P. | 8.6% | ||
| James E. Flynn | 8.6% |
| Period | Filings | Shares, Excl. Options | Value, Excl. Options |
|---|---|---|---|
| 2026 Q3 | 7 | 1.48 k | $4.66 k |
| 2026 Q2 | 104 | 44.9 M | $220 M |
| 2026 Q1 | 106 | 44.4 M | $212 M |
| 2025 Q4 | 94 | 41.9 M | $226 M |
| 2025 Q3 | 91 | 40.9 M | $200 M |
| 2025 Q2 | 84 | 41.0 M | $193 M |
| 2025 Q1 | 91 | 40.4 M | $148 M |
| 2024 Q4 | 89 | 40.6 M | $191 M |
| 2024 Q3 | 84 | 40.3 M | $375 M |
| 2024 Q2 | 78 | 39.8 M | $229 M |
| 2024 Q1 | 77 | 26.9 M | $181 M |
| 2023 Q4 | 64 | 26.6 M | $172 M |
| 2023 Q3 | 64 | 28.8 M | $144 M |
| 2023 Q2 | 61 | 26.8 M | $188 M |
| 2023 Q1 | 64 | 26.3 M | $163 M |
| 2022 Q4 | 70 | 26.5 M | $169 M |
| 2022 Q3 | 65 | 26.3 M | $226 M |
| 2022 Q2 | 61 | 26.3 M | $357 M |
| 2022 Q1 | 63 | 24.9 M | $379 M |
| 2021 Q4 | 69 | 24.2 M | $554 M |
| 2021 Q3 | 48 | 24.3 M | $338 M |
| 2021 Q2 | 40 | 23.9 M | $255 M |
| 2021 Q1 | 46 | 23.3 M | $307 M |
| 2020 Q4 | 49 | 23.3 M | $470 M |