{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-23-000008","form_type":"8-K","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2023-01-13T23:59:59+00:00","discovered_at":"2026-05-14T18:03:48.272169+00:00","generated_at":"2026-06-20T15:44:34.996374+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Director Ross E. Leckie resigns from First Interstate board effective Jan 12, 2023","bullets":["Ross E. Leckie resigned as a Director for personal reasons, not related to any disagreement.","Resignation effective midnight January 12, 2023.","Frances P. Grieb, Audit Committee member and financial expert, named interim Audit Committee Chair.","Leckie served on the Board for over a decade."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-23-000008","json":"https://secwatch.observer/filing/0000860413-23-000008.json","markdown":"https://secwatch.observer/filing/0000860413-23-000008.md","text":"https://secwatch.observer/filing/0000860413-23-000008.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041323000008/0000860413-23-000008-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041323000008/fibk-20230111.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T15:44:34.996374+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":[{"claim_id":"f864f0f756","claim":"Ross E. Leckie resigned as Director at FIRST INTERSTATE BANCSYSTEM INC.","evidence_excerpt":"On January 11, 2023, Ross E. Leckie notified First Interstate BancSystem, Inc. (the “Company”) that for personal reasons he was resigning as a Director of the Company effective at midnight on January 12, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/860413/000086041323000008/0000860413-23-000008-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}