Jefferies Financial Group Inc.'s ownership history for BIIB

Jefferies Financial Group Inc. currently holds 32.5K shares with a market value of $5.7M. It started holding BIIB on 2024-09-30. At its peak, it held 83.8K shares on 2024-12-31. Its highest holding value was $12.8M on 2024-12-31. At its lowest, it held 30.6K shares on 2025-09-30, with a value of $4.3M on 2025-09-30. In the recent 180 days, Jefferies Financial Group Inc. has decreased its shares by 4.6K. In the recent year, Jefferies Financial Group Inc. has decreased its shares by 51.3K.

It has also owned 128 contracts of calls, with the market value of the underlying securities totaling $2.0M on 2024-12-31. At its peak, it held 128 contracts of calls on 2024-12-31 and it owned calls with the market value of the underlying securities totaling $2.0M on 2024-12-31. At its lowest, it held 128 contracts of calls on 2024-12-31 and it owned calls with the market value of the underlying securities totaling $2.0M on 2024-12-31.

It has also owned 210 contracts of puts, with the market value of the underlying securities totaling $4.1M on 2024-09-30. At its peak, it held 210 contracts of puts on 2024-09-30 and it owned puts with the market value of the underlying securities totaling $4.1M on 2024-09-30. At its lowest, it held 210 contracts of puts on 2024-09-30 and it owned puts with the market value of the underlying securities totaling $4.1M on 2024-09-30.