| Relationships | Role | Relationship Start | Relationship End |
| Pinnacle Bancorp, Inc. | Parent | 7/2/1993 | 11/15/1998 |
| Pinnacle Bancorp, Inc. | Parent | 9/21/1988 | 7/1/1993 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Imperial Bank | Buyer | 8,491,511 | Acquisition | Discontinued | 11/16/1998 |
| Central Bank Of Craig, National Association | Seller | 19,431 | Discontinued | 9/21/1988 |