First Interstate BancSystem reported third-quarter net income of $62.2 million, or $0.65 per diluted share, a decline from $83.9 million in the second quarter and $71.4 million in the prior-year period. Net interest margin expanded 8 basis points to 3.53%, while non-performing assets decreased 6.1% to $155.0 million. The company also announced a quarterly cash dividend of $0.47 per share, payable November 13, 2026, to shareholders of record as of November 3, 2026. First Interstate BancSystem is a financial and bank holding company focused on community banking in the Rocky Mountains, Pacific Northwest, and Midwest.