| Relationships | Role | Relationship Start | Relationship End |
| Pinnacle Bancorp, Inc. | Parent | 2/6/1998 | 9/22/2000 |
| Pinnacle Bancorp, Inc. | Parent | 7/2/1993 | 2/5/1998 |
| Dawson Corporation | Parent | 12/21/1973 | 7/1/1993 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Pinnacle Bank | Buyer | 4,363,203 | Pooling of Interests | Discontinued | 9/23/2000 |
| Arnold State Bank | Seller | 13,044 | Discontinued | 12/5/1988 | |
| First Savings Company Of Lexington, Inc. | Seller | 1,391 | Discontinued | 12/2/1987 |