First Interstate BancSystem Inc (NASDAQ: FIBK) is a regional banking company that provides commercial and consumer banking services across the western United States. It earns revenue primarily through net interest income on loans and deposits, supplemented by fee-based income from services including wealth management, mortgage banking, and payment processing. The filing excerpts available do not provide sufficient detail to characterize segment revenue splits, loan portfolio composition, asset size, branch counts, or competitive positioning as of the fiscal year ended in the 10-K filed 2026-02-26 (accession 000086041326000011). Based solely on the provided excerpts, additional specifics regarding leadership, founding history, geographic footprint, or named competitors cannot be confirmed and are therefore omitted.

Revenue model

Net interest income from loans and deposits, plus non-interest fee income. Specific revenue figures and segment breakdowns are not supported by the provided filing excerpts.

Products and services

Commercial banking, consumer banking. Specific product lines are not confirmed by the provided filing excerpts.

Customers and end markets

Not supported by the provided filing excerpts.

Value-chain role

Regional bank and deposit-taking institution serving commercial and consumer borrowers.

Geographic exposure

Western United States, per general company knowledge, but not confirmed by the provided filing excerpts.

Source: SEC 10-K, filed 2026-02-26

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