| Relationships | Role | Relationship Start | Relationship End |
| Pinnacle Bancorp, Inc. | Parent | 7/2/1993 | 5/26/2000 |
| Anmer Corporation | Parent | 5/14/1992 | 7/1/1993 |
| Anmer Corporation | Parent | 10/10/1989 | 5/13/1992 |
| Anmer Corporation | Parent | 3/22/1988 | 10/9/1989 |
| Pinnacle Bancorp, Inc. | Parent | 1/1/1974 | 12/31/1975 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Pinnacle Bank | Buyer | 4,363,203 | Pooling of Interests | Discontinued | 5/27/2000 |
| The O'neill National Bank | Seller | 60,735 | Discontinued | 12/1/1989 | |
| The First State Bank | Seller | 5,634 | Failure | 12/4/1987 | |
| Bank Of Verdigre And Trust Company | Seller | 13,356 | Failure | 9/20/1984 |