Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2025-03-17 | SCHEDULE | EcoR1 Capital, LLC | 24.20% | 16,858,418 | view → | |
| 2025-02-18 | SCHEDULE | EcoR1 Capital, LLC | 22.80% | 15,720,161 | view → |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-03-31 | 4,461,520 | 8.06 | +9.4% |
| 2026-03-13 | 4,078,338 | 4.21 | -1.4% |
| 2026-02-27 | 4,135,418 | 9.03 | +4.1% |
| 2026-02-13 | 3,973,308 | 7.22 | +5.2% |
| 2026-01-30 | 3,777,909 | 5.88 | -1.2% |
| 2026-01-15 | 3,823,322 | 2.98 | +6.1% |
| 2025-12-31 | 3,603,765 | 6.44 | -8.5% |
| 2025-12-15 | 3,938,970 | 5.68 | -29.8% |
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