| Relationships | Role | Relationship Start | Relationship End |
| Ameribanc, Inc. | Parent | 9/10/1996 | 9/13/1996 |
| Mercantile Bancorporation Inc. Of Iowa | Parent | 7/1/1996 | 9/9/1996 |
| Mercantile Bancorporation Inc. Of Iowa | Parent | 1/2/1996 | 6/30/1996 |
| Hawkeye Bancorporation | Parent | 1/1/1984 | 1/1/1996 |
| Sibley Bancorporation | Parent | 12/31/1980 | 12/31/1983 |
| Sibley Bancorporation | Parent | 6/30/1980 | 12/30/1980 |
| Sibley Bancorporation | Parent | 12/20/1978 | 6/29/1980 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Mercantile Bank Midwest | Buyer | 3,086,882 | Pooling of Interests | Discontinued | 9/14/1996 |