Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2026-05-11 | SCHEDULE 13D/A | BAKER BROS. ADVISORS LP | — | 30,865,077 | view → | |
| 2024-06-14 | SC | BAKER BROS. ADVISORS LP | — | — | view → | |
| 2023-03-15 | SC | BAKER BROS. ADVISORS LP | — | — | view → | |
| 2022-02-14 | SC | BAKER BROS. ADVISORS LP | — | — | view → | |
| 2021-05-18 | SC | BAKER BROS. ADVISORS LP | — | — | view → | |
| 2020-04-29 | SC | BAKER BROS. ADVISORS LP | — | — | view → | |
| 2019-06-07 | SC | BAKER BROS. ADVISORS LP | — | — | view → | |
| 2018-05-03 | SC | BAKER BROS. ADVISORS LP | — | — | view → |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-10-15 | 10,025,354 | 5.32 | +0.4% |
| 2026-09-30 | 9,987,084 | 6.06 | +0.1% |
| 2026-09-15 | 9,981,369 | 7.26 | +6.6% |
| 2026-08-31 | 9,364,687 | 7.69 | -0.3% |
| 2026-08-14 | 9,389,500 | 6.66 | -8.4% |
| 2026-07-31 | 10,246,477 | 4.80 | -2.5% |
| 2026-07-15 | 10,512,123 | 6.45 | -0.6% |
| 2026-06-30 | 10,579,770 | 4.82 | +0.2% |
| 2026-06-15 | 10,560,807 | 4.74 | -7.4% |
| 2026-05-29 | 11,402,307 | 9.22 | +3.3% |
| 2026-05-15 | 11,040,495 | 8.65 | -2.8% |
| 2026-04-30 | 11,358,353 | 7.05 | -5.2% |
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