---
schema_version: "secwatch.filing_event.v1"
accession: "0001411685-25-000023"
form_type: "8-K"
ticker: "VTGN"
cik: "0001411685"
company_name: "Vistagen Therapeutics, Inc."
filed_at: "2025-03-06T23:59:59+00:00"
generated_at: "2026-05-25T05:43:08.779488+00:00"
event_type: "litigation"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Vistagen sued by pro se plaintiffs over alleged misleading clinical trial disclosures

## Summary
- John Cesario and David Preka filed lawsuit on Feb 13, 2025 (Case No. 4:25-cv-01510) in Northern District of California.
- Complaint alleges violations of Sections 10(b), Rule 10b-5, Sections 11 and 17(a) over public disclosures on clinical trials.
- Plaintiffs seek compensatory, punitive damages, fees, and costs.
- Vistagen believes allegations are wholly without merit and intends to defend vigorously.

## SEC filing metadata
- accession: 0001411685-25-000023
- form_type: 8-K
- ticker: VTGN
- cik: 0001411685
- company_name: Vistagen Therapeutics, Inc.
- filed_at: 2025-03-06T23:59:59+00:00
- event_type: litigation
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1411685/000141168525000023/0001411685-25-000023-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1411685/000141168525000023/vtgn-20250303.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001411685-25-000023
- JSON: https://secwatch.observer/filing/0001411685-25-000023.json
- Plain text: https://secwatch.observer/filing/0001411685-25-000023.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.