Vontobel Holding Ltd.'s ownership history for BIIB

Vontobel Holding Ltd. currently holds 9.8K shares with a market value of $1.7M. It started holding BIIB on 2024-09-30. At its peak, it held 20.0K shares on 2025-09-30. Its highest holding value was $2.8M on 2025-09-30. At its lowest, it held 9.8K shares on 2025-12-31, with a value of $1.7M on 2025-06-30. In the recent 180 days, Vontobel Holding Ltd. has decreased its shares by 3.6K. In the recent year, Vontobel Holding Ltd. has decreased its shares by 5.4K.

It has also owned 253 contracts of calls, with the market value of the underlying securities totaling $3.2M on 2025-06-30. At its peak, it held 253 contracts of calls on 2025-06-30 and it owned calls with the market value of the underlying securities totaling $3.2M on 2025-06-30. At its lowest, it held 253 contracts of calls on 2025-06-30 and it owned calls with the market value of the underlying securities totaling $3.2M on 2025-06-30.

It has also owned 40 contracts of puts, with the market value of the underlying securities totaling $704.0K on 2025-12-31. At its peak, it held 40 contracts of puts on 2025-12-31 and it owned puts with the market value of the underlying securities totaling $704.0K on 2025-12-31. At its lowest, it held 40 contracts of puts on 2025-12-31 and it owned puts with the market value of the underlying securities totaling $704.0K on 2025-12-31.