{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-25-000168","form_type":"8-K","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2025-11-18T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.383329+00:00","generated_at":"2026-05-16T18:59:33.464519+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"First Interstate appoints sole CBO; Co-CBO Asker transitions to advisor","bullets":["Lorrie Asker stepped down as Co-CBO on Nov 14, 2025; will serve as executive advisor to CEO through Q1 2026.","Chris Shepler named sole Chief Banking Officer; entered employment agreement with $480,000 base salary.","Shepler granted performance-based RSUs with $50,000 grant date value.","Shepler's agreement includes severance: 1x salary plus avg bonus (non-cause), or 2x salary plus 2x target bonus (change in control)."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-25-000168","json":"https://secwatch.observer/filing/0000860413-25-000168.json","markdown":"https://secwatch.observer/filing/0000860413-25-000168.md","text":"https://secwatch.observer/filing/0000860413-25-000168.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000168/0000860413-25-000168-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000168/fibk-20251114.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T18:59:33.464519+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"}