{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-010035","form_type":"8-K","ticker":"VTGN","cik":"0001411685","company_name":"Vistagen Therapeutics, Inc.","filed_at":"2026-02-20T23:59:59+00:00","discovered_at":"2026-05-14T18:02:35.020764+00:00","generated_at":"2026-05-16T01:25:50.051099+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Vistagen Therapeutics director Paul Edick resigns; board vacancy to be filled","bullets":["Paul Edick resigned from the Board of Directors effective February 13, 2026.","The Company is actively seeking new candidates to fill the resulting vacancy.","No reason for resignation was disclosed in the filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-010035","json":"https://secwatch.observer/filing/0001628280-26-010035.json","markdown":"https://secwatch.observer/filing/0001628280-26-010035.md","text":"https://secwatch.observer/filing/0001628280-26-010035.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1411685/000162828026010035/0001628280-26-010035-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1411685/000162828026010035/vtgn-20260213.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T01:25:50.051099+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"}