Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 28658R106 since 12/18/2024, newest first.
| Filer | % of Class | Filed | |
|---|---|---|---|
| MPM BioImpact LLC 13G/A Amendment 1 | 0% |
8/14/2026
Event 6/30/2026
|
|
|
FMR LLC
13G
|
11.9% |
7/8/2026
Event 6/30/2026
|
|
| FMR LLC | 11.9% | ||
| Abigail P. Johnson | 11.9% | ||
|
RA Capital Management, L.P.
13D/A
Amendment 10
|
33.0% |
7/7/2026
Event 7/2/2026
|
|
| RA Capital Management, L.P. | 33.0% | ||
| Peter Kolchinsky | 33.0% | ||
| Rajeev Shah | 33.0% | ||
| RA Capital Healthcare Fund, L.P. | 24.1% | ||
| RA Capital Nexus Fund III, L.P. | 6.4% | ||
|
RA Capital Management, L.P.
13D/A
Amendment 9
|
33.0% |
4/29/2026
Event 4/27/2026
|
|
| RA Capital Management, L.P. | 33.0% | ||
| Peter Kolchinsky | 33.0% | ||
| Rajeev Shah | 33.0% | ||
| RA Capital Healthcare Fund, L.P. | 25.0% | ||
| RA Capital Nexus Fund III, L.P. | 9.3% | ||
| Sera Medicines, LLC | 4.3% | ||
| MPM BioImpact LLC 13G | 5.6% |
2/17/2026
Event 12/31/2025
|
|
|
RA Capital Management, L.P.
13D/A
Amendment 8
|
33.0% |
12/15/2025
Event 12/11/2025
|
|
| RA Capital Management, L.P. | 33.0% | ||
| Peter Kolchinsky | 33.0% | ||
| Rajeev Shah | 33.0% | ||
| RA Capital Healthcare Fund, L.P. | 23.0% | ||
| RA Capital Nexus Fund III, L.P. | 11.2% | ||
| Sera Medicines, LLC | 5.2% | ||
|
AI Eti LLC
13D/A
Amendment 5
|
0% |
10/16/2025
Event 10/14/2025
|
|
| AI Eti LLC | 0% | ||
| Access Industries Holdings LLC | 0% | ||
| Access Industries Management, LLC | 0% | ||
| Len Blavatnik | 0% | ||
|
AI Eti LLC
13D/A
Amendment 4
|
5.7% |
10/7/2025
Event 10/3/2025
|
|
| AI Eti LLC | 5.7% | ||
| Access Industries Holdings LLC | 5.7% | ||
| Access Industries Management, LLC | 5.7% | ||
| Len Blavatnik | 5.7% | ||
|
Pontifax Management 4 G.P. (2015) Ltd.
13G
|
7.7% |
9/18/2025
Event 6/27/2024
|
|
| Pontifax VI G.P. L.P. | 7.7% | ||
| Pontifax Management 4 G.P. (2015) Ltd. | 7.7% | ||
| Ran Nussbaum | 7.7% | ||
| Tomer Kariv | 7.7% | ||
|
BML Investment Partners, L.P.
13G/A
Amendment 3
|
0% |
2/13/2025
Event 12/31/2024
|
|
| BML Investment Partners, L.P. | 0% | ||
| Leonard Braden Michael | 0% |
| Period | Filings | Shares, Excl. Options | Value, Excl. Options |
|---|---|---|---|
| 2026 Q3 | 1 | 821 | $9.42 k |
| 2026 Q2 | 112 | 56.3 M | $735 M |
| 2026 Q1 | 82 | 32.3 M | $221 M |
| 2025 Q4 | 66 | 31.2 M | $158 M |
| 2025 Q3 | 69 | 44.7 M | $89.8 M |
| 2025 Q2 | 71 | 49.9 M | $61.9 M |
| 2025 Q1 | 77 | 51.9 M | $63.4 M |
| 2024 Q4 | 81 | 55.7 M | $100 M |
| 2024 Q3 | 73 | 54.7 M | $278 M |
| 2024 Q2 | 50 | 49.9 M | $355 M |
| 2024 Q1 | 24 | 16.9 M | $46.2 M |
| 2023 Q4 | 26 | 16.9 M | $45.5 M |
| 2023 Q3 | 24 | 16.7 M | $44.0 M |
| 2023 Q2 | 23 | 16.7 M | $46.8 M |
| 2023 Q1 | 20 | 16.7 M | $48.4 M |
| 2022 Q4 | 22 | 16.6 M | $61.1 M |
| 2022 Q3 | 23 | 14.8 M | $47.8 M |
| 2022 Q2 | 30 | 15.1 M | $45.7 M |
| 2022 Q1 | 44 | 17.5 M | $147 M |
| 2021 Q4 | 36 | 17.4 M | $182 M |
| 2021 Q3 | 33 | 17.3 M | $311 M |