EcoR1 Capital, LLC 13D and 13G filings for Xencor, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-02-17 6:24 pm Sale | 2025-12-31 | 13G | Xencor, Inc. XNCR | EcoR1 Capital, LLC | 4,640,000 6.400% | -2,079,304![]() (-30.95%) | Filing |
| 2024-11-14 6:16 pm Purchase | 2024-09-30 | 13G | Xencor, Inc. XNCR | EcoR1 Capital, LLC | 6,719,304 9.400% | 1,436,788![]() (+27.20%) | Filing |
| 2024-02-14 6:54 pm Unchanged | 2023-12-31 | 13G | Xencor, Inc. XNCR | EcoR1 Capital, LLC | 5,282,516 8.700% | 0 (Unchanged) | Filing |
| 2023-02-13 1:43 pm Purchase | 2022-12-31 | 13G | Xencor, Inc. XNCR | EcoR1 Capital, LLC | 5,282,516 8.800% | 376,410![]() (+7.67%) | Filing |
| 2022-02-14 12:49 pm Purchase | 2021-12-31 | 13G | Xencor, Inc. XNCR | EcoR1 Capital, LLC | 4,906,106 8.400% | 359,034![]() (+7.90%) | Filing |

