{"schema_version":"secwatch.filing_event.v1","accession":"0001408534-24-000052","form_type":"8-K","ticker":"FGBI","cik":"0001408534","company_name":"First Guaranty Bancshares, Inc.","filed_at":"2024-05-29T23:59:59+00:00","discovered_at":"2026-05-14T18:03:18.288224+00:00","generated_at":"2026-06-01T07:38:32.100950+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"First Guaranty Bancshares CEO Alton Lewis retires after 30+ years; Michael Mineer appointed President & CEO","bullets":["Alton Lewis retires as CEO after 30+ years; will remain Vice Chairman of Board.","Under Lewis, First Guaranty grew from $931M to $3.6B in assets; led 2015 IPO.","Michael Mineer, currently Mideast Area President, becomes new CEO effective immediately.","Mineer has 35+ years banking experience; plans to fine-tune capital/risk profile and improve efficiency."],"urls":{"canonical":"https://secwatch.observer/filing/0001408534-24-000052","json":"https://secwatch.observer/filing/0001408534-24-000052.json","markdown":"https://secwatch.observer/filing/0001408534-24-000052.md","text":"https://secwatch.observer/filing/0001408534-24-000052.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1408534/000140853424000052/0001408534-24-000052-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1408534/000140853424000052/fgbi-20240528.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T07:38:32.100950+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":"95ab7f65fa","claim":"Alton Lewis retired as President and Chief Executive Officer at First Guaranty Bancshares, Inc..","evidence_excerpt":"Alton Lewis will retire from his role as President and Chief Executive Officer of First Guaranty Bancshares, Inc. and First Guaranty Bank. Mr. Lewis will continue to serve as Vice Chairman of the First Guaranty Bancshares, Inc. and First Guaranty Bank Board of Directors.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1408534/000140853424000052/0001408534-24-000052-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"}