| Relationships | Role | Relationship Start | Relationship End |
| Ameribanc, Inc. | Parent | 9/10/1996 | 9/13/1996 |
| Mercantile Bancorporation Inc. Of Iowa | Parent | 1/2/1996 | 9/9/1996 |
| Hawkeye Bancorporation | Parent | 4/6/1982 | 1/1/1996 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Mercantile Bank Midwest | Buyer | 3,086,882 | Pooling of Interests | Discontinued | 9/14/1996 |
| Renwick Savings Bank | Seller | 17,240 | Discontinued | 11/1/1984 | |
| Livermore State Bank | Seller | 9,396 | Discontinued | 9/1/1983 | |
| The First National Bank In Humboldt | Seller | 55,412 | Failure | 4/6/1982 |