{"schema_version":"secwatch.filing_event.v1","accession":"0000860413-24-000108","form_type":"8-K","ticker":"FIBK","cik":"0000860413","company_name":"FIRST INTERSTATE BANCSYSTEM INC","filed_at":"2024-07-12T23:59:59+00:00","discovered_at":"2026-05-14T18:03:16.061706+00:00","generated_at":"2026-05-31T21:36:59.631274+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"First Interstate CEO Kevin Riley to retire; transition agreement provides severance and consulting","bullets":["CEO Kevin Riley will retire; he remains CEO until successor starts or no earlier than January 1, 2025.","Upon separation, Riley receives $3.56M paid over 18 months, 24 months health coverage, and other benefits.","After separation, Riley will provide consulting for one year at $70,833/month, with non-compete/non-solicit covenants.","Riley will resign from the board and all committees on the separation date; a CEO search is ongoing."],"urls":{"canonical":"https://secwatch.observer/filing/0000860413-24-000108","json":"https://secwatch.observer/filing/0000860413-24-000108.json","markdown":"https://secwatch.observer/filing/0000860413-24-000108.md","text":"https://secwatch.observer/filing/0000860413-24-000108.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/860413/000086041324000108/0000860413-24-000108-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/860413/000086041324000108/fibk-20240708.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T21:36:59.631274+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":"94fb4863e6","claim":"Kevin P. Riley departed as President and Chief Executive Officer at FIRST INTERSTATE BANCSYSTEM INC.","evidence_excerpt":"the Company’s President and Chief Executive Officer (“CEO”) Kevin P. Riley will be retiring and a search has been initiated for his successor.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/860413/000086041324000108/0000860413-24-000108-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retiring"},{"label":"Role","value":"President and Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"b18e4fc794","claim":"Kevin P. Riley departed as Director at FIRST INTERSTATE BANCSYSTEM INC.","evidence_excerpt":"Mr. Riley will resign from the Company’s Board of Directors, the Board of Directors of First Interstate Bank, the Board of Directors of the First Interstate BancSystem Foundation, and any committees on which he serves, in each case effective as of the Separation Date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/860413/000086041324000108/0000860413-24-000108-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resign"},{"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"}