Calamos Advisors LLC's ownership history for BRK.B

Calamos Advisors LLC currently holds 267.6K shares with a market value of $134.5M. It started holding BRK.B on 2024-09-30. At its peak, it held 314.5K shares on 2025-06-30. Its highest holding value was $153.9M on 2025-03-31. At its lowest, it held 264.5K shares on 2024-09-30, with a value of $119.9M on 2024-12-31. In the recent 180 days, Calamos Advisors LLC has decreased its shares by 21.3K. In the recent year, Calamos Advisors LLC has increased its shares by 3.0K.

It has also owned 758 contracts of calls, with the market value of the underlying securities totaling $34.4M on 2025-03-31. At its peak, it held 758 contracts of calls on 2025-03-31 and it owned calls with the market value of the underlying securities totaling $34.4M on 2025-03-31. At its lowest, it held 758 contracts of calls on 2025-03-31 and it owned calls with the market value of the underlying securities totaling $34.4M on 2025-03-31.