Alyeska Investment Group, L.P.
Holdings in BIIB
Position Over Time
| Report Date | Value (USD) | Shares | Type | Discretion | Filed |
|---|---|---|---|---|---|
| 2025-12-31 | $180,260,925 | 1,024,268 | Shares | Sole | 2026-02-13 |
| 2025-09-30 | $118,406,402 | 845,277 | Shares | Sole | 2025-11-17 |
| 2025-06-30 | $63,896,801 | 508,773 | Shares | Sole | 2025-08-14 |
| 2024-06-30 | $92,960,979 | 401,005 | Shares | Sole | 2024-08-14 |
| 2024-03-31 | $35,944,011 | 166,693 | Shares | Sole | 2024-05-15 |
| 2023-12-31 | $109,376,903 | 422,680 | Shares | Sole | 2024-02-14 |
| 2023-09-30 | $113,617,952 | 442,076 | Shares | Sole | 2023-11-14 |
| 2023-06-30 | $104,616,289 | 367,268 | Shares | Sole | 2023-08-14 |
| 2022-12-31 | $6,940,722 | 25,064 | Shares | Sole | 2023-02-14 |