---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-023176"
form_type: "8-K"
ticker: "VTGN"
cik: "0001411685"
company_name: "Vistagen Therapeutics, Inc."
filed_at: "2026-04-02T23:59:59+00:00"
generated_at: "2026-05-15T07:49:34.591146+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Vistagen falls below Nasdaq audit committee minimum after director resignation

## Summary
- Ms. Mary Rotunno resigned from the Board effective April 1, 2026, reducing Audit Committee from 3 to 2 members.
- Company notified Nasdaq of non-compliance with Listing Rule 5605(c)(2) requiring at least three audit committee members.
- Nasdaq listing not affected; cure period of up to one year from resignation date to regain compliance.
- Board plans to fill vacancy and return to compliance within the cure period.

## SEC filing metadata
- accession: 0001628280-26-023176
- form_type: 8-K
- ticker: VTGN
- cik: 0001411685
- company_name: Vistagen Therapeutics, Inc.
- filed_at: 2026-04-02T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 3.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1411685/000162828026023176/0001628280-26-023176-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1411685/000162828026023176/vtgn-20260401.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-023176
- JSON: https://secwatch.observer/filing/0001628280-26-023176.json
- Plain text: https://secwatch.observer/filing/0001628280-26-023176.txt

## Source-grounded claims
- claim_id: 3bf838f1862babdb0a3d0ea12e984ae2ab5fb41b
  claim: Vistagen Therapeutics, Inc. received a nasdaq noncompliance notice notice regarding audit committee (rules 5605(c)(2)).
  evidence_excerpt: April 1, 2026, Vistagen Therapeutics, Inc. (the “ Company ”) notified The Nasdaq Stock Market LLC (“ Nasdaq ”) of its current non-compliance with Nasdaq Listing Rule 5605(c)(2), which requires the Audit Committee of a Nasdaq-listed company to have at least three members from its Board of Directors, each meeting independence and certain other criteria. As disclosed in the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on March 18, 2026, Ms. Mary Rotunno resigned from the Company’s Board of Directors (the “ Board ”), effective April 1, 2026 (the “ Resignat
  evidence_url: https://www.sec.gov/Archives/edgar/data/1411685/000162828026023176/0001628280-26-023176-index.htm

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