CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM
Holdings in BIIB
Position Over Time
| Report Date | Value (USD) | Shares | Type | Discretion | Filed |
|---|---|---|---|---|---|
| 2025-12-31 | $58,218,547 | 330,806 | Shares | Sole | 2026-02-12 |
| 2025-09-30 | $48,157,542 | 343,786 | Shares | Sole | 2025-11-14 |
| 2025-06-30 | $42,581,289 | 339,050 | Shares | Sole | 2025-08-13 |
| 2025-03-31 | $52,696,262 | 385,094 | Shares | Sole | 2025-05-13 |
| 2024-12-31 | $60,839,069 | 397,849 | Shares | Sole | 2025-04-23 |
| 2024-09-30 | $76,580,562 | 395,071 | Shares | Sole | 2024-11-13 |
| 2024-06-30 | $91,815,788 | 396,065 | Shares | Sole | 2024-08-14 |
| 2024-03-31 | $87,204,868 | 404,419 | Shares | Sole | 2024-04-30 |
| 2023-12-31 | $93,987,592 | 363,209 | Shares | Sole | 2024-02-01 |
| 2023-09-30 | $72,261,702 | 281,163 | Shares | Sole | 2023-11-02 |
| 2023-06-30 | $78,228,640 | 274,631 | Shares | Sole | 2023-08-09 |
| 2023-03-31 | $86,082,814 | 309,617 | Shares | Sole | 2023-05-12 |
| 2022-12-31 | $102,984,332 | 371,892 | Shares | Sole | 2023-02-08 |
| 2022-09-30 | $103,060,131 | 385,993 | Shares | Sole | 2022-11-09 |
| 2022-06-30 | $75,844,674 | 371,897 | Shares | Sole | 2022-08-10 |
| 2022-03-31 | $89,790,573 | 426,356 | Shares | Sole | 2022-05-04 |
| 2021-12-31 | $108,141,780 | 450,741 | Shares | Sole | 2022-02-10 |
| 2021-09-30 | $132,515,161 | 468,268 | Shares | Sole | 2021-11-10 |
| 2021-06-30 | $163,960,922 | 473,506 | Shares | Sole | 2021-08-13 |
| 2021-03-31 | $104,263,664 | 372,703 | Shares | Sole | 2021-05-14 |
| 2020-12-31 | $94,937,608 | 387,722 | Shares | Sole | 2021-02-02 |
| 2020-09-30 | $107,613,156 | 379,347 | Shares | Sole | 2020-11-05 |
| 2020-06-30 | $101,230,218 | 378,360 | Shares | Sole | 2020-08-12 |
| 2020-03-31 | $127,276,193 | 402,289 | Shares | Sole | 2020-05-12 |