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Companies / Financials / First Interstate BancSystem, Inc.
FIBK

First Interstate BancSystem, Inc.

FinancialsBanks & Brokers
Ticker FIBKBILLINGS, MTFiscal year ends DecemberBook value per share $33.90Diluted shares 98.0M

First Interstate BancSystem, Inc. (Nasdaq: FIBK) is a financial and bank holding company focused on community banking through its subsidiary, First Interstate Bank. It provides commercial, governmental and consumer banking services to individuals, businesses, government entities and nonprofit organizations across 12… From the company’s description.

In fiscal 2025, First Interstate BancSystem, Inc. reported revenue of $1.06B, up 5.9% from fiscal 2024, and net income of $302.10M. Its pre-tax margin was 37.0%. Over the twelve months to Jun 30, 2026, revenue was $1.07B.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
$1.06BFY2025
+5.9% year over year
Last 12 mo $1.07B
36.99%FY2025
+7.5 percentage points
Last 12 mo 39.05%
$302.10MFY2025
+33.7% year over year
Last 12 mo $324.30M
8.76%FY2025
+1.9 percentage points
Last 12 mo 9.76%
Cash & financing
$305.60MFY2025
−13.9% year over year
Last 12 mo $271.90M
$277.80MFY2025
−16.3% year over year
Last 12 mo $271.90M
6.45FY2025
Was 7.48× a year earlier
Last 12 mo 0.04
102.8MFY2025
−0.3% year over year
Last 12 mo 98.0M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What First Interstate BancSystem, Inc. does

In the company’s own words

First Interstate BancSystem, Inc. (Nasdaq: FIBK) is a financial and bank holding company focused on community banking through its subsidiary, First Interstate Bank. It provides commercial, governmental and consumer banking services to individuals, businesses, government entities and nonprofit organizations across 12 states. Its products and services include checking, savings and time deposits; real estate, consumer, commercial and agricultural loans; mortgage origination and servicing; and wealth management, including trust, investment management, insurance and employee benefit services. The company operates one reportable segment, community banking. As of December 31, 2025, it had $26.6 billion in consolidated assets, $22.1 billion in deposits and $15.2 billion in loans held for investment. As of February 20, 2026, it operated 290 banking offices, including branches and detached drive-up facilities. Founded in Montana in 1971, First Interstate expanded through organic growth and acquisitions, including Great Western Bank and Bank of the Cascades. Its website is www.firstinterstatebank.com.

Company details
Sector
Financials
Industry (SIC)
Banks & Brokers
Headquarters
BILLINGS, MT
Fiscal year end
December
CIK
860413
SIC
6022

Financial performance, year by year

Fiscal 2013–2025 · USD
$-110.58M$221.16M$552.90M$884.64M$1.22B2013201420152016201720182019202020212022202320242025Last 12 moLast 12 monthsLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns First Interstate BancSystem, Inc. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

307
funds hold it
0 of 35
superinvestors hold it
$1.80B
held by funds, at market
50.4%
of shares held by funds
1
bond issues held by funds

Largest fund holders · First Interstate BancSystem, Inc.’s weight in each

iShares Core S&P Small-Cap ETF
IJR · iShares Trust
0.18%of fund net assets
0.14%of fund net assets
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
iShares Russell 2000 ETF
IWM · iShares Trust
0.11%of fund net assets
VANGUARD SMALL-CAP INDEX FUND
VB · VANGUARD INDEX FUNDS
0.04%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

First Interstate BancSystem, Inc.’s bonds, as funds hold them

Funds report holding 1 issues of First Interstate BancSystem, Inc.’s debt, $15.94M at market value — what funds hold, not the company’s total debt.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

Compare this company with peers, find it in your funds and follow its financial history with your connected AI:

  • “How do First Interstate BancSystem, Inc. and its peers compare on margins and cash generation over ten years?”
  • “Where did five years of First Interstate BancSystem, Inc.'s earnings go — cash, debt, buybacks, reinvestment?”
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