| Relationships | Role | Relationship Start | Relationship End |
| M&I Llc | Parent | 12/31/1980 | 8/12/1988 |
| Affiliated Bank Corporation | Parent | 12/31/1977 | 12/30/1980 |
| Affiliated Bank Corporation | Parent | 12/31/1974 | 12/30/1977 |
| Affiliated Bank Corporation | Parent | 3/31/1972 | 12/30/1974 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| M&I Bank Of Southern Wisconsin | Buyer | 2,704,312 | Discontinued | 8/13/1988 |