| Relationships | Role | Relationship Start | Relationship End |
| Firstbank Holding Company | Parent | 1/9/1986 | 12/8/1991 |
| 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 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Firstbank Of Longmont, National Association | Buyer | 99,988 | Discontinued | 12/9/1991 |