WELLINGTON MANAGEMENT GROUP LLP
Holdings in BIIB
Position Over Time
| Report Date | Value (USD) | Shares | Type | Discretion | Filed |
|---|---|---|---|---|---|
| 2025-12-31 | $624,987,827 | 3,551,269 | Shares | Defined | 2026-02-17 |
| 2025-09-30 | $594,850,278 | 4,246,504 | Shares | Defined | 2025-11-14 |
| 2025-06-30 | $602,633,566 | 4,798,420 | Shares | Defined | 2025-08-14 |
| 2025-03-31 | $639,376,277 | 4,672,437 | Shares | Defined | 2025-05-13 |
| 2024-09-30 | $994,630,446 | 5,131,193 | Shares | Defined | 2024-11-14 |
| 2024-06-30 | $1,197,695,939 | 5,166,491 | Shares | Defined | 2024-08-14 |
| 2024-03-31 | $1,104,056,214 | 5,120,142 | Shares | Defined | 2024-05-15 |
| 2023-09-30 | $1,381,251,410 | 5,374,310 | Shares | Defined | 2023-11-14 |
| 2023-06-30 | $1,522,910,359 | 5,346,359 | Shares | Defined | 2023-08-14 |
| 2023-03-31 | $1,516,066,446 | 5,452,888 | Shares | Defined | 2023-05-12 |
| 2022-12-31 | $1,498,473,099 | 5,411,213 | Shares | Defined | 2023-02-13 |
| 2022-09-30 | $1,371,209,739 | 5,135,617 | Shares | Defined | 2022-11-14 |
| 2022-06-30 | $1,282,114,693 | 6,286,725 | Shares | Defined | 2022-08-15 |
| 2022-03-31 | $1,316,150,173 | 6,249,526 | Shares | Defined | 2022-05-16 |
| 2021-12-31 | $1,483,774,438 | 6,184,455 | Shares | Defined | 2022-02-11 |
| 2021-09-30 | $1,578,438,980 | 5,577,720 | Shares | Defined | 2021-11-15 |
| 2021-06-30 | $1,939,756,405 | 5,601,861 | Shares | Defined | 2021-08-16 |
| 2021-03-31 | $1,651,319,766 | 5,902,841 | Shares | Defined | 2021-05-17 |
| 2020-12-31 | $1,415,773,908 | 5,781,973 | Shares | Defined | 2021-02-12 |
| 2020-09-30 | $1,377,888,226 | 4,857,192 | Shares | Defined | 2020-11-16 |
| 2020-06-30 | $1,277,219,488 | 4,773,760 | Shares | Defined | 2020-08-14 |
| 2020-03-31 | $1,295,651,714 | 4,095,239 | Shares | Defined | 2020-05-14 |