{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-083356","form_type":"8-K","ticker":"MNOV","cik":"0001226616","company_name":"MEDICINOVA INC","filed_at":"2024-04-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:17.602662+00:00","generated_at":"2026-06-04T04:22:56.159007+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"MediciNova VP Geoffrey O'Brien resigns as employee, to stay as consultant","bullets":["Geoffrey O'Brien, VP, retires from full-time employment effective April 2, 2024.","Resignation is voluntary, no disagreement with the Company.","O'Brien will continue as VP on a consulting basis; consulting agreement to be formalized."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-083356","json":"https://secwatch.observer/filing/0001193125-24-083356.json","markdown":"https://secwatch.observer/filing/0001193125-24-083356.md","text":"https://secwatch.observer/filing/0001193125-24-083356.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1226616/000119312524083356/0001193125-24-083356-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1226616/000119312524083356/d818300d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T04:22:56.159007+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":"65a00fcfe3","claim":"Geoffrey O'Brien resigned as Vice President at MEDICINOVA INC.","evidence_excerpt":"On March 26, 2024, Geoffrey O’Brien informed MediciNova, Inc. (the “Company”) of his decision to retire from full-time employment and resign from his employment with the Company, effective as of April 2, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1226616/000119312524083356/0001193125-24-083356-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Vice President"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}