Report|2 Apr 2026

First Interstate BancSystem, Inc. Surveillance Report

Company Profile

  • First Interstate BancSystem, Inc. (NASDAQ: FIBK) (“First Interstate” or “the company”) headquartered in Billings, MT, is a $26.6 billion asset holding company with operations spanning ten states, though primarily in: Montana, South Dakota, Wyoming, Iowa, Oregon, Nebraska and Idaho.
  • FIBK delivers a broad scope of traditional banking products and services through its lead subsidiary, First Interstate Bank (“the bank”), with ~290 banking offices. The company also offers wealth management (~$8.7 billion AUM); insurance services; residential mortgage loans and merchant and payments banking services, which, combined, reflect ~16% fee income contribution to total revenues. The acquisition of Great Western Bancorp, Inc. ("GWB" or "Great Western") in 2022 significantly boosted its operating platform, expanded its footprint, and added $13 billion in assets.
  • FIBK appointed James (Jim) Reuter, former CEO of FirstBank, previously one of the largest…
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