MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Holdings in BIIB
Position Over Time
| Report Date | Value (USD) | Shares | Type | Discretion | Filed |
|---|---|---|---|---|---|
| 2025-12-31 | $125,403,256 | 712,559 | Shares | Sole | 2026-01-22 |
| 2025-09-30 | $102,162,580 | 729,316 | Shares | Sole | 2025-10-29 |
| 2025-06-30 | $90,127,274 | 717,631 | Shares | Sole | 2025-08-08 |
| 2025-03-31 | $96,939,506 | 708,415 | Shares | Sole | 2025-05-02 |
| 2024-12-31 | $111,994,935 | 732,376 | Shares | Sole | 2025-02-12 |
| 2024-09-30 | $137,855,904 | 711,184 | Shares | Sole | 2024-11-12 |
| 2024-06-30 | $127,193,372 | 548,673 | Shares | Sole | 2024-08-09 |
| 2024-03-31 | $123,981,855 | 574,975 | Shares | Sole | 2024-05-14 |
| 2023-12-31 | $150,103,418 | 580,065 | Shares | Sole | 2024-02-08 |
| 2023-09-30 | $114,781,177 | 446,602 | Shares | Sole | 2023-11-08 |
| 2023-06-30 | $41,735,079 | 146,516 | Shares | Sole | 2023-08-09 |
| 2023-03-31 | $40,894,595 | 147,087 | Shares | Sole | 2023-05-10 |
| 2022-12-31 | $40,859,266 | 147,549 | Shares | Sole | 2023-02-13 |
| 2022-09-30 | $60,881,340 | 228,020 | Shares | Sole | 2022-11-09 |
| 2022-06-30 | $35,114,999 | 172,183 | Shares | Sole | 2022-08-09 |
| 2022-03-31 | $43,290,091 | 205,556 | Shares | Sole | 2022-05-11 |
| 2021-12-31 | $50,273,555 | 209,543 | Shares | Sole | 2022-02-10 |
| 2021-09-30 | $57,724,863 | 203,982 | Shares | Sole | 2021-11-10 |
| 2021-06-30 | $34,285,230 | 99,013 | Shares | Sole | 2021-08-13 |
| 2021-03-31 | $9,919,095 | 35,457 | Shares | Sole | 2021-05-13 |
| 2020-12-31 | $17,079,473 | 69,752 | Shares | Sole | 2021-05-12 |
| 2020-09-30 | $34,566,408 | 121,850 | Shares | Sole | 2020-11-12 |
| 2020-06-30 | $49,814,599 | 186,188 | Shares | Sole | 2020-11-20 |
| 2020-03-31 | $70,291,410 | 222,174 | Shares | Sole | 2020-11-20 |