First Interstate BancSystem Inc.
03/10/2026 | Press release | Distributed by Public on 03/10/2026 10:38
Select Nebraska Branches Transitioning to Security First Bank in April 2026
As announced in October 2025, First Interstate Bank entered into an agreement for Security First Bank to acquire select First Interstate branches in Nebraska.
The transaction is scheduled to close on Friday, April 10, 2026. On Monday, April 13, 2026, these locations will open as Security First Bank branches.
What's Changing
When the transaction closes, Security First Bank will assume the physical buildings, retail and business deposit accounts, loans, and safe deposit boxes associated with the transitioning locations.
Branches Opening as Security First Bank on April 13, 2026
- Alliance
- Atkinson
- Broken Bow
- Burwell
- Callaway
- McCook
- Norfolk
- O'Neill
- Ord
- Scottsbluff
- Sidney
What's Not Changing
Wealth Management relationships, credit card accounts, and some mortgage loans will remain with First Interstate.
Key Dates
- Friday, April 10, 2026: Transaction closes.
- Monday, April 13, 2026: Listed locations open as Security First Bank branches.
How to Get Help
Questions for First Interstate
Call our Client Contact Center at 855-342-3400, Monday - Friday, 7:30 a.m. to 7:00 p.m. MT, and Saturday, 9:00 a.m. to 2:00 p.m. MT.
Questions for Security First Bank
For details about how accounts will transfer to Security First Bank, review the Welcome Guide at security1stbank.com/welcome-conversion or contact Security First Bank directly:
General Banking Assistance: 877-747-3139 (Monday - Friday, 8:00 a.m. to 4:30 p.m. MT)
Online & Mobile Banking Support: 844-277-8860 (Monday - Friday, 6:30 a.m. to 5:00 p.m. MT)
First Interstate BancSystem Inc. published this content on March 10, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on March 10, 2026 at 16:38 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]