Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2026-09-08 | SCHEDULE 13D/A | Venrock Healthcare Capital Partners III, L.P. | — | 0 | view → | |
| 2026-09-03 | SCHEDULE 13D/A | Fairmount Funds Management LLC | — | 0 | view → | |
| 2026-06-23 | SCHEDULE 13D/A | Fairmount Funds Management LLC | 9.99% | 6,713,519 | view → | |
| 2026-01-22 | SCHEDULE | Fairmount Funds Management LLC | 9.99% | 6,047,027 | view → | |
| 2025-10-14 | SCHEDULE | Fairmount Funds Management LLC | 9.99% | 5,776,881 | view → | |
| 2024-04-01 | SC | Fairmount Funds Management LLC | — | — | view → |
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-14 | Dambkowski Carl | officer | Gift | 8,000 | — | — |
| 2026-07-10 | HENDERSON MICHAEL THOMAS | director, officer | Gift | 75,046 | — | — |
| 2026-07-08 | HENDERSON MICHAEL THOMAS | director, officer | Sale | 20,000 | $133.63 | $2.67M |
| 2026-06-09 | Bollinger Lisa | director | Award | 7,657 | $85.00 | $651K |
| 2026-05-01 | Henderson Jane | officer | Sale | 811 | $81.02 | $66K |
| 2026-05-01 | Henderson Jane | officer | Sale | 900 | $82.60 | $74K |
| 2026-05-01 | Henderson Jane | officer | Sale | 289 | $83.16 | $24K |
| 2026-04-08 | HENDERSON MICHAEL THOMAS | director, officer | Sale | 17,800 | $82.48 | $1.47M |
| 2026-04-08 | HENDERSON MICHAEL THOMAS | director, officer | Sale | 2,000 | $83.26 | $167K |
| 2026-04-08 | HENDERSON MICHAEL THOMAS | director, officer | Sale | 200 | $85.00 | $17K |
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