Alyeska Investment Group, L.P.'s ownership history for BIIB

Alyeska Investment Group, L.P. currently holds 1.0M shares with a market value of $180.3M. It started holding BIIB on 2025-06-30. At its peak, it held 1.0M shares on 2025-12-31. Its highest holding value was $180.3M on 2025-12-31. At its lowest, it held 508.8K shares on 2025-06-30, with a value of $63.9M on 2025-06-30. In the recent 180 days, Alyeska Investment Group, L.P. has increased its shares by 515.5K.