| Relationships | Role | Relationship Start | Relationship End |
| First Security Corporation | Parent | 3/26/1997 | 11/23/1997 |
| First Security Corporation | Parent | 12/31/1981 | 3/25/1997 |
| First Security Corporation | Parent | 12/31/1978 | 12/30/1981 |
| First Security Corporation | Parent | 12/31/1976 | 12/30/1978 |
| First Security Corporation | Parent | 5/9/1956 | 12/30/1976 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Wells Fargo Bank Northwest, National Association | Buyer | 8,651,432 | Pooling of Interests | Discontinued | 11/24/1997 |
| Star Valley State Bank | Seller | 63,103 | Discontinued | 8/23/1994 | |
| State Bank Of Green River | Seller | 34,994 | Discontinued | 10/29/1993 | |
| Sweetwater Federal Savings And Loan Association | Seller | 11,625 | Failure | 8/23/1990 |