| Relationships | Role | Relationship Start | Relationship End |
| Pinnacle Bancorp, Inc. | Parent | 7/2/1993 | 9/22/2000 |
| Heartland Bancorporation | Parent | 4/1/1991 | 7/1/1993 |
| Osceola Insurance, Inc. | Parent | 12/31/1970 | 3/31/1991 |
| Shelby Insurance, Inc. | Parent | 12/17/1990 | 3/31/1991 |
| Pinnacle Bancorp, Inc. | Parent | 12/31/1970 | 3/31/1991 |
| Central Grain Incorporated | Parent | 12/31/1970 | 3/31/1991 |
| Shelby Insurance, Inc. | Parent | 12/31/1970 | 12/16/1990 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Pinnacle Bank | Buyer | 4,363,203 | Pooling of Interests | Discontinued | 9/23/2000 |