Kentucky Retirement Systems's ownership history for BIIB

Kentucky Retirement Systems currently holds 9.2K shares with a market value of $1.3M. It started holding BIIB on 2024-09-30. At its peak, it held 10.1K shares on 2024-09-30. Its highest holding value was $2.0M on 2024-09-30. At its lowest, it held 9.2K shares on 2025-09-30, with a value of $1.2M on 2025-06-30. In the recent 180 days, Kentucky Retirement Systems has decreased its shares by 774. In the recent year, Kentucky Retirement Systems has decreased its shares by 977.