Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 878972108 since 12/18/2024, newest first.
| Filer | % of Class | Filed | |
|---|---|---|---|
|
TCG Crossover GP II, LLC
13G
|
6.2% |
2/27/2026
Event 2/12/2026
|
|
| TCG Crossover GP II, LLC | 3.1% | ||
| TCG Crossover Fund II, L.P. | 3.1% | ||
| TCG Crossover GP III, LLC | 3.1% | ||
| TCG Crossover Fund III, L.P. | 3.1% | ||
| Chen Yu | 6.2% | ||
|
Aberdeen Group plc
13G
|
6.1% |
1/29/2026
Event 12/31/2025
|
|
| Aberdeen Group plc | 6.1% | ||
| abrdn Inc | 6.1% | ||
|
Deep Track Capital, LP
13G/A
Amendment 1
|
0% |
11/14/2025
Event 9/30/2025
|
|
| Deep Track Capital, LP | 0% | ||
| Deep Track Biotechnology Master Fund, Ltd. | 0% | ||
| David Kroin | 0% | ||
|
EcoR1 Capital, LLC
13G/A
Amendment 2
|
0% |
11/14/2025
Event 9/30/2025
|
|
| EcoR1 Capital, LLC | 0% | ||
| Oleg Nodelman | 0% | ||
| EcoR1 Capital Fund Qualified, L.P. | 0% | ||
|
EcoR1 Capital, LLC
13G/A
Amendment 1
|
5.0% |
5/15/2025
Event 3/31/2025
|
|
| EcoR1 Capital, LLC | 5.0% | ||
| Oleg Nodelman | 5.0% | ||
| EcoR1 Capital Fund Qualified, L.P. | 4.7% | ||
|
FMR LLC
13G/A
Amendment 3
|
15.0% |
5/12/2025
Event 3/31/2025
|
|
| FMR LLC | 15.0% | ||
| Abigail P. Johnson | 15.0% | ||
|
Timothy A. Springer
13D/A
Amendment 4
|
31.5% |
4/7/2025
Event 4/3/2025
|
|
| Timothy A. Springer | 31.5% | ||
| TAS Partners LLC | 7.4% | ||
| Chafen Lu | 1.0% | ||
|
Terrance McGuire
13D/A
Amendment 2
|
6.3% |
4/7/2025
Event 4/3/2025
|
|
| Terrance McGuire | 6.3% | ||
| Polaris Partners IX, L.P. | 3.1% | ||
| Polaris Partners GP IX, L.L.C. | 3.1% | ||
| Polaris Founders Capital Fund I, L.P. | 0.1% | ||
| Polaris Founders Capital Fund Management Co. I, L.L.C. | 0.1% | ||
| Polaris Founders Capital Fund II, L.P. | 0.3% | ||
| Polaris Founders Capital Fund Management Co. II, L.L.C. | 0.3% | ||
| Jonathan Flint | 0.5% | ||
| BML Investment Partners, L.P. 13G/A Amendment 3 | 0% |
2/13/2025
Event 12/31/2024
|
|
|
Timothy A. Springer
13D/A
Amendment 3
|
29.2% |
2/10/2025
Event 2/5/2025
|
|
| Timothy A. Springer | 29.2% | ||
| TAS Partners LLC | 5.3% | ||
| Chafen Lu | 1.0% | ||
|
Deep Track Capital, LP
13G
|
7.6% |
2/10/2025
Event 2/3/2025
|
|
| Deep Track Capital, LP | 7.6% | ||
| Deep Track Biotechnology Master Fund, Ltd. | 7.6% | ||
| David Kroin | 7.6% | ||
|
Terrance McGuire
13D/A
Amendment 1
|
6.3% |
2/7/2025
Event 2/5/2025
|
|
| Terrance McGuire | 6.3% | ||
| Polaris Partners IX, L.P. | 5.8% | ||
| Polaris Partners GP IX, L.L.C. | 5.8% | ||
| Polaris Founders Capital Fund I, L.P. | 0.1% | ||
| Polaris Founders Capital Fund Management Co. I, L.L.C. | 0.1% | ||
| Polaris Founders Capital Fund II, L.P. | 0.4% | ||
| Polaris Founders Capital Fund Management Co. II, L.L.C. | 0.4% | ||
| Jonathan Flint | 0.5% | ||
|
FMR LLC
13G/A
Amendment 2
|
10.3% |
1/8/2025
Event 12/31/2024
|
|
| FMR LLC | 10.3% | ||
| Abigail P. Johnson | 10.3% |
| Period | Filings | Shares, Excl. Options | Value, Excl. Options |
|---|---|---|---|
| 2026 Q3 | 3 | 330 | $7.69 k |
| 2026 Q2 | 127 | 14.0 M | $480 M |
| 2026 Q1 | 117 | 13.8 M | $427 M |
| 2025 Q4 | 112 | 13.8 M | $288 M |
| 2025 Q3 | 103 | 12.1 M | $190 M |
| 2025 Q2 | 84 | 12.1 M | $241 M |
| 2025 Q1 | 79 | 11.2 M | $199 M |
| 2024 Q4 | 71 | 7.69 M | $355 M |
| 2024 Q3 | 56 | 7.21 M | $219 M |
| 2024 Q2 | 42 | 5.36 M | $88.3 M |