| Relationships | Role | Relationship Start | Relationship End |
| Old Second National Bank | Parent | 8/6/2004 | |
| Old Second Bank-Yorkville | Parent | 8/6/2004 | 6/30/2007 |
| Old Second Bank-Kane County | Parent | 8/6/2004 | 6/30/2007 |
| Relationships | Role | Relationship Start | Relationship End |
| Old Second National Bank | Parent | 8/6/2004 | |
| Old Second Bank-Yorkville | Parent | 8/6/2004 | 6/30/2007 |
| Old Second Bank-Kane County | Parent | 8/6/2004 | 6/30/2007 |