{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-024114","form_type":"8-K","ticker":"LGVN","cik":"0001721484","company_name":"Longeveron Inc.","filed_at":"2025-03-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:04.586666+00:00","generated_at":"2026-05-24T18:40:48.804096+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Longeveron auditor changes: Marcum resigns, CBIZ engaged after acquisition","bullets":["Marcum resigned as Longeveron's auditor on March 13, 2025; Audit Committee approved.","CBIZ (acquired Marcum's attest practice) appointed as new independent auditor for FY2025.","No disagreements or reportable events during FY2024, FY2023, and interim through March 13, 2025.","Prior audit reports for FY2024 and FY2023 included going concern explanatory paragraph but were unqualified."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-024114","json":"https://secwatch.observer/filing/0001213900-25-024114.json","markdown":"https://secwatch.observer/filing/0001213900-25-024114.md","text":"https://secwatch.observer/filing/0001213900-25-024114.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1721484/000121390025024114/0001213900-25-024114-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1721484/000121390025024114/ea0234488-8k_longeveron.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T18:40:48.804096+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}