{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-067920","form_type":"8-K","ticker":"SFNC","cik":"0000090498","company_name":"SIMMONS FIRST NATIONAL CORP","filed_at":"2024-03-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:27.234842+00:00","generated_at":"2026-06-04T21:57:25.428521+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Simmons First National director Dean O. Bass to depart at 2024 annual meeting","bullets":["Dean O. Bass (73) notified company he will not stand for re-election at the 2024 annual shareholder meeting.","Bass has served on the board since 2022; his term will end upon the meeting date.","No reason cited other than personal decision; no disagreement with company.","The company expressed appreciation for his service.","Board size and potential replacement not disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-067920","json":"https://secwatch.observer/filing/0001193125-24-067920.json","markdown":"https://secwatch.observer/filing/0001193125-24-067920.md","text":"https://secwatch.observer/filing/0001193125-24-067920.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/90498/000119312524067920/0001193125-24-067920-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/90498/000119312524067920/d670992d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T21:57:25.428521+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":"ab68811736","claim":"Dean O. Bass departed as Director at SIMMONS FIRST NATIONAL CORP.","evidence_excerpt":"On March 13, 2024, Dean O. Bass (age 73), a member of the board of directors (\"Board\") of Simmons First National Corporation (\"Company\"), notified the Company that he has decided not to stand for re-election at the Company’s 2024 annual meeting of shareholders.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/90498/000119312524067920/0001193125-24-067920-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"decided not to stand for re-election"},{"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"}