| Relationships | Role | Relationship Start | Relationship End |
| Society Bancorp Of Michigan, Inc. | Parent | 12/31/1987 | 2/28/1990 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Keybank National Association | Buyer | 4,542,217 | Discontinued | 3/1/1990 |