Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2026-09-16 | SCHEDULE 13D/A | BAKER BROS. ADVISORS LP | — | 115,457,154 | view → | |
| 2026-06-15 | SCHEDULE 13D/A | BAKER BROS. ADVISORS LP | 8.00% | 115,457,154 | view → | |
| 2025-03-03 | SCHEDULE | HHLR ADVISORS, LTD. | 6.70% | 92,805,741 | view → | |
| 2020-07-17 | SC | BAKER BROS. ADVISORS LP | — | — | view → | |
| 2019-01-03 | SC | Hillhouse Capital Management, Ltd. | — | — | view → | |
| 2019-01-03 | SC | Hillhouse Capital Advisors, Ltd. | — | — | view → | |
| 2018-01-22 | SC | BAKER BROS. ADVISORS LP | — | — | view → |
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-08-11 | Lee Chan Henry | officer | Option exercise | 812 | $194.47 | $158K |
| 2026-08-11 | Lee Chan Henry | officer | Option exercise | 1,058 | $213.32 | $226K |
| 2026-08-11 | Lee Chan Henry | officer | Option exercise | 796 | $159.03 | $127K |
| 2026-08-11 | Lee Chan Henry | officer | Sale | 2,666 | $360.00 | $960K |
| 2026-08-11 | Lee Chan Henry | officer | Option exercise | 10,556 | $14.96 | $158K |
| 2026-08-11 | Lee Chan Henry | officer | Option exercise | 13,754 | $16.41 | $226K |
| 2026-08-11 | Lee Chan Henry | officer | Option exercise | 10,348 | $12.23 | $127K |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-10-15 | 90,820 | 3.84 | -44.3% |
| 2026-09-30 | 163,109 | 2.12 | +32.9% |
| 2026-09-15 | 122,709 | 2.25 | +52.9% |
| 2026-08-31 | 80,257 | 3.39 | -28.9% |
| 2026-08-14 | 112,949 | 1.58 | -29.6% |
| 2026-07-31 | 924,561 | 12.93 | +458.6% |
| 2026-07-15 | 165,509 | 4.24 | +151.4% |
| 2026-06-30 | 65,825 | 1.27 | -34.6% |
| 2026-06-15 | 100,636 | 1.18 | +32.5% |
| 2026-05-29 | 75,925 | 1.00 | -34.5% |
| 2026-05-15 | 115,925 | 8.17 | -65.3% |
| 2026-04-30 | 333,825 | 999.99 | +116.2% |
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