D. E. Shaw & Co., Inc.'s ownership history for BRK.B

D. E. Shaw & Co., Inc. currently holds 751.2K shares with a market value of $377.6M. It started holding BRK.B on 2024-12-31. At its peak, it held 751.2K shares on 2025-09-30. Its highest holding value was $377.6M on 2025-09-30. At its lowest, it held 286.9K shares on 2024-12-31, with a value of $130.1M on 2024-12-31. In the recent 180 days, D. E. Shaw & Co., Inc. has increased its shares by 410.8K.

It has also owned 6.0K contracts of calls, with the market value of the underlying securities totaling $300.7M on 2024-12-31. At its peak, it held 8.6K contracts of calls on 2024-12-31 and it owned calls with the market value of the underlying securities totaling $390.0M on 2024-12-31. At its lowest, it held 4.8K contracts of calls on 2025-06-30 and it owned calls with the market value of the underlying securities totaling $234.9M on 2025-06-30. In the recent 180 days, D. E. Shaw & Co., Inc. has increased its holdings by 1.1K contracts.

It has also owned 1.4K contracts of puts, with the market value of the underlying securities totaling $71.6M on 2024-12-31. At its peak, it held 1.4K contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $71.6M on 2025-09-30. At its lowest, it held 68 contracts of puts on 2025-03-31 and it owned puts with the market value of the underlying securities totaling $3.6M on 2025-03-31. In the recent 180 days, D. E. Shaw & Co., Inc. has increased its holdings by 1.4K contracts.