{"url_path":"/sec/fibk/8-k/2026-07-16/item-9-01","section_key":"item-9-01","section_title":"Item 9.01 Financial Statements and Exhibits.","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-07-16","source_url":"https://www.sec.gov/Archives/edgar/data/860413/0000860413-26-000078-index.html","accession_number":"0000860413-26-000078","cik":"0000860413","ticker":"FIBK","issuer_name":"FIRST INTERSTATE BANCSYSTEM INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/860413/0000860413-26-000078-index.html","primary_entity_key":"0000860413","primary_entity_name":"FIRST INTERSTATE BANCSYSTEM INC"},"word_count":72,"has_tables":true,"body_markdown":"Item 9.01 Financial Statements and Exhibits.\n\n(d) Exhibits.\n\nExhibit No.Exhibit Description\n\n104Cover Page Interactive Data File (embedded within Inline XBRL document).\n\nSIGNATURES\n\nPursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.\n\nDate: July 16, 2026\n\n \n\nFIRST INTERSTATE BANCSYSTEM, INC.\n\nBy:/s/ JAMES A. REUTER\n\nJames A. Reuter\n\nPresident and Chief Executive Officer"}