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 | Sarissa Capital Management LP | 4.70% | 2,966,022 | view → | |
| 2025-03-07 | SCHEDULE | Sarissa Capital Management LP | 8.40% | 5,237,161 | view → | |
| 2021-05-25 | SC | Sarissa Capital Management LP | — | — | view → | |
| 2021-05-25 | SC | GLAXOSMITHKLINE PLC | — | — | view → | |
| 2021-02-12 | SC | GLAXOSMITHKLINE PLC | — | — | view → | |
| 2020-12-14 | SC | Sarissa Capital Management LP | — | — | view → | |
| 2018-04-10 | SC | GLAXOSMITHKLINE PLC | — | — | view → |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-10-15 | 7,265,728 | 10.36 | +6.1% |
| 2026-09-30 | 6,845,485 | 5.66 | -4.2% |
| 2026-09-15 | 7,144,265 | 9.31 | +2.9% |
| 2026-08-31 | 6,940,337 | 11.79 | +1.1% |
| 2026-08-14 | 6,864,277 | 9.17 | -0.4% |
| 2026-07-31 | 6,892,081 | 11.53 | -1.8% |
| 2026-07-15 | 7,015,897 | 7.54 | +5.6% |
| 2026-06-30 | 6,645,977 | 6.78 | +0.7% |
| 2026-06-15 | 6,598,321 | 7.53 | +12.6% |
| 2026-05-29 | 5,859,814 | 6.17 | -8.4% |
| 2026-05-15 | 6,395,967 | 9.55 | +1.8% |
| 2026-04-30 | 6,282,273 | 11.35 | -6.6% |
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