{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-23-019610","form_type":"8-K","ticker":"VTGN","cik":"0001411685","company_name":"Vistagen Therapeutics, Inc.","filed_at":"2023-07-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:33.835985+00:00","generated_at":"2026-06-13T10:57:23.135495+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":"Vistagen CFO Jerrold D. Dotson to retire by Aug 31, 2023; successor identified","bullets":["CFO Jerrold D. Dotson intends to retire on or about August 31, 2023.","Retirement not due to any disagreement with the company on operations or policies.","Board has identified a potential successor, subject to completion of onboarding activities.","Company will announce successor upon appointment."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-23-019610","json":"https://secwatch.observer/filing/0001437749-23-019610.json","markdown":"https://secwatch.observer/filing/0001437749-23-019610.md","text":"https://secwatch.observer/filing/0001437749-23-019610.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1411685/000143774923019610/0001437749-23-019610-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1411685/000143774923019610/vtgn20230706_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-13T10:57:23.135495+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":"9c91cc8c4b","claim":"Jerrold D. Dotson departed as Vice President and Chief Financial Officer at Vistagen Therapeutics, Inc..","evidence_excerpt":"On July 7, 2023, Vistagen Therapeutics, Inc. (the “ Company ”) announced that Jerrold D. Dotson, CPA, Vice President and Chief Financial Officer (principal financial and accounting officer), intends to retire from the Company on or about August 31, 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1411685/000143774923019610/0001437749-23-019610-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"intends to retire"},{"label":"Role","value":"Vice President and Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}