| Relationships | Role | Relationship Start | Relationship End |
| First Oak Brook Bancshares, Inc. | Parent | 9/30/1983 | 8/14/1991 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| 1St Oak Brook Bank | Buyer | 157,167 | Discontinued | 8/15/1991 |
| Relationships | Role | Relationship Start | Relationship End |
| First Oak Brook Bancshares, Inc. | Parent | 9/30/1983 | 8/14/1991 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| 1St Oak Brook Bank | Buyer | 157,167 | Discontinued | 8/15/1991 |