| Relationships | Role | Relationship Start | Relationship End |
| Firstbank Holding Company | Parent | 1/9/1986 | 8/22/1993 |
| Firstbank Holding Company | Parent | 12/31/1981 | 1/8/1986 |
| Firstbank Holding Company | Parent | 12/31/1980 | 12/30/1981 |
| Firstbank Holding Company | Parent | 2/24/1978 | 12/30/1980 |
| Firstbank Holding Company | Parent | 6/29/1972 | 2/23/1978 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Firstbank Of Longmont | Buyer | 412,005 | Discontinued | 8/23/1993 | |
| 600 Florida Avenue Branch | Seller | Discontinued | 12/9/1991 |