{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-22-024879","form_type":"8-K","ticker":"LGVN","cik":"0001721484","company_name":"Longeveron Inc.","filed_at":"2022-05-09T23:59:59+00:00","discovered_at":"2026-05-14T18:04:01.997405+00:00","generated_at":"2026-06-25T22:31:29.756074+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Longeveron CEO Geoff Green steps down; CMO K. Chris Min appointed Interim CEO","bullets":["Geoff Green resigns as CEO effective June 1, 2022; to provide consulting services.","Board appoints K. Chris Min, M.D., Ph.D. (current CMO) as Interim CEO.","Nationwide search for permanent CEO launched; executive search firm retained.","Mr. Green served as CEO for 6 years, leading Longeveron from private to public."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-22-024879","json":"https://secwatch.observer/filing/0001213900-22-024879.json","markdown":"https://secwatch.observer/filing/0001213900-22-024879.md","text":"https://secwatch.observer/filing/0001213900-22-024879.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1721484/000121390022024879/0001213900-22-024879-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1721484/000121390022024879/ea159512-8k_longeveron.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-25T22:31:29.756074+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":"4445d351c7","claim":"K. Chris Min was appointed as Interim Chief Executive Officer at Longeveron Inc..","evidence_excerpt":"the Board of Directors has unanimously appointed K. Chris Min, M.D., Ph.D., the Company’s current Chief Medical Officer, to serve as interim Chief Executive Officer until such time as a permanent successor has been identified.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1721484/000121390022024879/0001213900-22-024879-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Interim Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"feb748a821","claim":"Geoff Green resigned as Chief Executive Officer at Longeveron Inc..","evidence_excerpt":"On May 3, 2022, Geoff Green, Chief Executive Officer of Longeveron Inc. (the “Company”) provided notice to the Company and Board of Directors of his intention to step down from his position, effective June 1, 2022.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1721484/000121390022024879/0001213900-22-024879-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"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"}