{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-24-000106","form_type":"8-K","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2024-06-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:22.159769+00:00","generated_at":"2026-06-01T04:29:45.040381+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"First Interstate CEO Kevin P. Riley to retire; board initiates CEO search","bullets":["President and CEO Kevin P. Riley retiring; will serve until successor appointed; search launched.","Riley joined in 2013 as CFO, became CEO in 2015; grew bank from $7B to $30B across 14 states.","Board Chair Stephen B. Bowman states 'position of strength'; retained global executive search firm.","Compensation terms for Riley's transition and retirement not yet finalized."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-24-000106","json":"https://secwatch.observer/filing/0000860413-24-000106.json","markdown":"https://secwatch.observer/filing/0000860413-24-000106.md","text":"https://secwatch.observer/filing/0000860413-24-000106.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041324000106/0000860413-24-000106-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041324000106/fibk-20240614.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T04:29:45.040381+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":"f6a4064942","claim":"Kevin P. Riley retired as President and Chief Executive Officer at FIRST INTERSTATE BANCSYSTEM INC.","evidence_excerpt":"On June 14, 2024, First Interstate BancSystem, Inc. (“First Interstate” or the “Company”) announced the upcoming retirement of President and Chief Executive Officer Kevin P. Riley and has initiated a search for his successor.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/860413/000086041324000106/0000860413-24-000106-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"label":"Role","value":"President and Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}