BARCLAYS PLC's ownership history for BIIB

BARCLAYS PLC currently holds 551.5K shares with a market value of $101.1M. It started holding BIIB on 2024-09-30. At its peak, it held 1.4M shares on 2025-09-30. Its highest holding value was $229.7M on 2025-12-31. At its lowest, it held 551.5K shares on 2026-03-31, with a value of $100.2K on 2025-06-30. In the recent 180 days, BARCLAYS PLC has decreased its shares by 808.0K. In the recent year, BARCLAYS PLC has decreased its shares by 366.9K.

It has also owned 75 contracts of calls, with the market value of the underlying securities totaling $1.3M on 2024-09-30. At its peak, it held 227 contracts of calls on 2024-09-30 and it owned calls with the market value of the underlying securities totaling $1.3M on 2025-12-31. At its lowest, it held 75 contracts of calls on 2025-09-30 and it owned calls with the market value of the underlying securities totaling $1.1K on 2025-03-31. In the recent 180 days, BARCLAYS PLC has decreased its holdings by 7 contracts. In the recent year, BARCLAYS PLC has decreased its holdings by 152 contracts.

It has also owned 1.8K contracts of puts, with the market value of the underlying securities totaling $33.0M on 2024-09-30. At its peak, it held 1.8K contracts of puts on 2025-12-31 and it owned puts with the market value of the underlying securities totaling $33.0M on 2026-03-31. At its lowest, it held 1 contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $1.3K on 2024-12-31. In the recent 180 days, BARCLAYS PLC has increased its holdings by 1.8K contracts. In the recent year, BARCLAYS PLC has increased its holdings by 551.2K contracts.