Position history for Alyeska Investment Group, L.P.'s holdings in BIOGEN INC
Alyeska Investment Group, L.P. holds 1M shares of BIIB (BIOGEN INC), worth $180.3M as of 2025-Q4. The position was increased (++21.2% shares). BIIB represents 0.5% of Alyeska Investment Group, L.P.'s portfolio.
Current Value
$180.3M
Current Shares
1M
Total Value Change
+$87.3M
Total Shares Change
+623,263
Other major holders of BIIB: UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
Increased |
| 1M |
+21.2% |
| $180.3M |
| 0.5% |
| $176.40 |
51 |
| 2025-Q3 | Increased | 845,277 | +66.1% | $118.4M | 0.4% | $138.52 | 53 |
| 2025-Q2 | New | 508,773 | - | $63.9M | 0.2% | $126.08 | 49 |
| 2024-Q3 | Exited | 0 | -100.0% | $0 | 0.0% | $194.67 | 0 |
| 2024-Q2 | Increased | 401,005 | +140.6% | $93M | 0.5% | $231.82 | 68 |