| Relationships | Role | Relationship Start | Relationship End |
| First Oak Brook Bancshares, Inc. | Parent | 12/31/1984 | 3/31/1988 |
| First Oak Brook Bancshares, Inc. | Parent | 12/22/1983 | 12/30/1984 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Oak Brook Bank | Buyer | 2,537,582 | Discontinued | 4/1/1988 |