Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2026-07-20 | SCHEDULE 13D/A | ORBIMED ADVISORS LLC | — | 4,127,987 | view → | |
| 2026-07-10 | SCHEDULE 13G | Boxer Capital Management, LLC | — | — | view → | |
| 2026-06-04 | SCHEDULE 13G | BIOTECHNOLOGY VALUE FUND L P | — | — | view → | |
| 2026-06-01 | SCHEDULE 13D/A | ORBIMED ADVISORS LLC | — | 4,127,987 | view → | |
| 2026-05-28 | SCHEDULE 13D/A | Atlas Venture Fund X, L.P. | 3.60% | 864,261 | view → | |
| 2020-04-20 | SC | Flynn James E | — | — | view → | |
| 2020-01-31 | SC | Flynn James E | — | — | view → | |
| 2019-12-30 | SC | Flynn James E | — | — | view → |
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