First Interstate selling 11 Nebraska branches to Security First; ~$280M deposits, ~$70M loans

FIRST INTERSTATE BANCSYSTEM INC

Security First Bank acquiring 11 Nebraska branches from First Interstate Bank under purchase and assumption agreement.
Branches had ~$280M in deposits and ~$70M in outstanding loans as of Sept. 30, 2025.
Transaction subject to regulatory approval; expected to close in early 2026.
First Interstate cites opportunity to redeploy capital toward stronger markets.
Security First will expand to 34 full-service Nebraska branches post-acquisition.

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