| Relationships | Role | Relationship Start | Relationship End |
| Comerica Investment Services, Inc. | Parent | 6/30/2007 | |
| Comerica Investment Services, Inc. | Parent | 10/1/1993 | 6/29/2007 |
| Comerica Bank | Parent | 9/14/1992 | 9/30/1993 |
| Manufacturers Bank, National Association | Parent | 12/27/1985 | 9/13/1992 |
| Imperial Asset Management, Inc. | Subsidary | 7/11/2001 | 1/30/2003 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Imperial Asset Management, Inc. | Seller | Discontinued | 1/31/2003 | ||
| Imperial Securities Corp. | Seller | Discontinued | 7/11/2001 | ||
| Comerica Brokers, Inc. | Seller | Discontinued | 7/1/1992 |