PERCEPTIVE ADVISORS LLC's ownership history for BIIB

PERCEPTIVE ADVISORS LLC currently holds 124.0K shares with a market value of $21.8M. It started holding BIIB on 2025-12-31. At its peak, it held 124.0K shares on 2025-12-31. Its highest holding value was $21.8M on 2025-12-31. At its lowest, it held 124.0K shares on 2025-12-31, with a value of $21.8M on 2025-12-31.