{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-25-000137","form_type":"8-K","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2025-09-02T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.508525+00:00","generated_at":"2026-05-17T09:06:58.507940+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"First Interstate appoints Renu Agrawal to board, filling expansion vacancy","bullets":["Renu Agrawal appointed as Class III director effective Aug 29, 2025, term until 2027 annual meeting.","She brings experience from 13 years at Wells Fargo, former COO at ValleyCrest and Quisic, earlier at Polaroid and McKinsey.","Board expanded to 14 members; Agrawal will serve on Governance/Nominating and Technology/Innovation/Operations committees.","She is considered independent under NASDAQ rules; no related-party transactions disclosed.","Compensation per standard non-employee director program (RSUs) as described in 2025 proxy."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-25-000137","json":"https://secwatch.observer/filing/0000860413-25-000137.json","markdown":"https://secwatch.observer/filing/0000860413-25-000137.md","text":"https://secwatch.observer/filing/0000860413-25-000137.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000137/0000860413-25-000137-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000137/fibk-20250829.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T09:06:58.507940+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"}