| Relationships | Role | Relationship Start | Relationship End |
| Pinnacle Bancorp, Inc. | Parent | 7/2/1993 | 12/18/1998 |
| Pinnacle Bancorp, Inc. | Parent | 12/13/1989 | 7/1/1993 |
| First Windsor Holding Company | Parent | 6/28/1974 | 12/12/1989 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank Of Colorado | Buyer | 3,203,351 | Pooling of Interests | Discontinued | 12/19/1998 |
| Bank Of Windsor | Seller | 23,252 | Discontinued | 8/16/1993 |