RETIREMENT INCOME SOLUTIONS, INC's ownership history for BRK.B

RETIREMENT INCOME SOLUTIONS, INC currently holds 6.8K shares with a market value of $3.4M. It started holding BRK.B on 2024-09-30. At its peak, it held 6.8K shares on 2025-09-30. Its highest holding value was $3.4M on 2025-09-30. At its lowest, it held 6.0K shares on 2025-03-31, with a value of $2.8M on 2024-09-30. In the recent 180 days, RETIREMENT INCOME SOLUTIONS, INC has increased its shares by 797.