First Interstate BancSystem, Inc. filed its Form 10-Q for the quarterly period ended September 30, 2026, with the SEC on November 2, 2026, reporting third-quarter net income of $62.2 million and nine-month net income of $206.3 million.

Key Highlights

  • Q3 Net Income: The company reported net income of $62.2 million for the three months ended September 30, 2026, compared to $71.4 million in the same period of 2025.
  • Nine-Month Net Income: Net income for the nine months ended September 30, 2026 was $206.3 million, up from $193.3 million for the same period in 2025.
  • Earnings Per Share: Basic and diluted earnings per common share for the nine months ended September 30, 2026 were $2.13, compared to $1.87 for the same period in 2025.
  • Total Assets: Total assets stood at $25,769.6 million as of September 30, 2026, down from $26,640.6 million at December 31, 2025.
  • Loans Held for Investment: Net loans held for investment totaled $13,804.0 million as of September 30, 2026, compared to $15,010.2 million at December 31, 2025.
  • Branch Sale Gain: The company reported a gain on sale of branches, net, of $19.5 million for the nine months ended September 30, 2026, with no such gain in the prior-year period.
  • Shares Outstanding: As of October 30, 2026, the company had 92,581,035 shares of common stock outstanding, down from 101,105,745 shares issued and outstanding at December 31, 2025.

First Interstate BancSystem Q3 2026 Financial Results and Balance Sheet Overview

According to the filing, First Interstate BancSystem (NASDAQ:FIBK) reported third-quarter 2026 net interest income of $206.2 million, essentially flat with the $206.8 million recorded in Q3 2025. Total interest income for the quarter was $272.5 million, down from $292.0 million in Q3 2025, while total interest expense declined to $66.3 million from $85.2 million in the year-ago quarter. The company recorded a provision for credit losses of $10.5 million in Q3 2026, compared to zero in Q3 2025.

The company disclosed total noninterest income of $43.3 million for the three months ended September 30, 2026, compared to $43.7 million in Q3 2025. For the nine-month period, total noninterest income reached $146.1 million versus $126.8 million, with the difference including a $19.5 million net gain on sale of branches recorded in the first nine months of 2026. Total noninterest expense for both the three-month and nine-month periods ended September 30, 2026 were $157.1 million and $473.6 million, respectively, the latter unchanged from the $473.6 million reported for the same nine-month period of 2025.

On the balance sheet, the filing disclosed total deposits of $21,388.5 million at September 30, 2026, down from $22,088.3 million at December 31, 2025. Total stockholders' equity was $3,155.0 million, compared to $3,447.0 million at year-end 2025, with accumulated other comprehensive loss widening to $314.1 million from $178.1 million. The allowance for credit losses on loans was $181.4 million at September 30, 2026, compared to $191.4 million at December 31, 2025. The company's goodwill remained unchanged at $1,100.9 million.

What Was Disclosed

First Interstate BancSystem filed its quarterly report covering the period ended September 30, 2026, disclosing financial statements including income, balance sheet, and comprehensive income data for the three and nine months ended September 30, 2026 and 2025.