Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2026-05-18 | SCHEDULE 13D/A | ACUTA CAPITAL PARTNERS, LLC | 9.00% | 4,685,912 | view → | |
| 2026-05-14 | SCHEDULE 13D/A | Avoro Capital Advisors LLC | — | 15,893,516 | view → | |
| 2025-03-06 | SCHEDULE | Desai Neil | 4.90% | 2,272,941 | view → | |
| 2025-03-05 | SCHEDULE | BML Investment Partners, L.P. | 4.98% | 2,435,000 | view → | |
| 2025-03-04 | SCHEDULE | Avoro Capital Advisors LLC | 19.99% | 11,914,961 | view → | |
| 2025-02-24 | SCHEDULE | BML Investment Partners, L.P. | 9.90% | 2,435,000 | view → | |
| 2025-02-04 | SCHEDULE | BML Investment Partners, L.P. | 9.90% | 2,435,000 | view → | |
| 2025-01-24 | SCHEDULE | ACUTA CAPITAL PARTNERS, LLC | 7.80% | 1,921,297 | view → | |
| 2024-10-01 | SC | Desai Neil | — | — | view → | |
| 2022-09-26 | SC | Avoro Capital Advisors LLC | — | — | view → | |
| 2021-11-12 | SC | Satter Muneer A | — | — | view → | |
| 2021-09-03 | SC | ORBIMED ADVISORS LLC | — | — | view → | |
| 2021-08-30 | SC | Avoro Capital Advisors LLC | — | — | view → | |
| 2020-11-23 | SC | Satter Muneer A | — | — | view → | |
| 2020-11-12 | SC | ORBIMED ADVISORS LLC | — | — | view → | |
| 2020-05-15 | SC | Novartis Bioventures Ltd | — | — | view → | |
| 2020-04-22 | SC | Novartis Bioventures Ltd | — | — | view → | |
| 2019-06-07 | SC | Novartis Bioventures Ltd | — | — | view → | |
| 2019-04-29 | SC | Novartis Bioventures Ltd | — | — | view → | |
| 2019-01-11 | SC | Satter Muneer A | — | — | view → | |
| 2018-07-09 | SC | Novartis Bioventures Ltd | — | — | view → | |
| 2018-07-03 | SC | Satter Muneer A | — | — | view → | |
| 2018-07-02 | SC | ORBIMED ADVISORS LLC | — | — | view → |
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-14 | BALL BRYAN | officer | Sale | 92,460 | $3.64 | $337K |
| 2026-04-13 | BALL BRYAN | officer | Sale | 26,389 | $3.46 | $91K |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-05-29 | 843,660 | 2.50 | -1.3% |
| 2026-05-15 | 854,980 | 1.39 | +3.7% |
| 2026-04-30 | 824,655 | 3.84 | +5.7% |
| 2026-04-15 | 780,056 | 3.66 | +12.4% |
| 2026-03-31 | 693,909 | 3.88 | -3.9% |
| 2026-03-13 | 722,187 | 2.95 | -7.5% |
| 2026-02-27 | 780,896 | 10.15 | +0.5% |
| 2026-02-13 | 777,204 | 5.33 | -8.3% |
| 2026-01-30 | 847,429 | 9.51 | +8.5% |
| 2026-01-15 | 780,846 | 6.21 | +6.2% |
| 2025-12-31 | 735,610 | 4.49 | -3.3% |
| 2025-12-15 | 760,566 | 4.34 | +17.2% |
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