{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-25-000135","form_type":"8-K/A","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2025-08-29T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.507257+00:00","generated_at":"2026-05-17T09:21:29.711513+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"FIBK appoints Scudder to Audit and Risk Committees effective Aug 28, 2025","bullets":["Michael L. Scudder appointed as Class I director on Aug 13, 2025, filling a vacancy due to board size increase.","Effective Aug 28, 2025, Scudder assigned to the Audit Committee and Risk Committee.","Amendment filed solely to report committee assignments; original 8-K unchanged.","Scudder's term expires at the 2028 annual meeting."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-25-000135","json":"https://secwatch.observer/filing/0000860413-25-000135.json","markdown":"https://secwatch.observer/filing/0000860413-25-000135.md","text":"https://secwatch.observer/filing/0000860413-25-000135.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000135/0000860413-25-000135-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000135/fibk-20250813.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T09:21:29.711513+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}