| Relationships | Role | Relationship Start | Relationship End |
| Pinnacle Bank | Parent | 7/8/2002 | 9/27/2002 |
| Cook Investment, Inc. | Parent | 1/1/1989 | 7/7/2002 |
| Cook Investment, Inc. | Parent | 10/4/1985 | 12/31/1988 |
| Wymore, Inc. | Parent | 12/31/1970 | 10/3/1985 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Pinnacle Bank | Buyer | 4,363,203 | Pooling of Interests | Discontinued | 9/28/2002 |