---
schema_version: "secwatch.filing_event.v1"
accession: "0000783324-23-000014"
form_type: "8-K"
ticker: "VGZ"
cik: "0000783324"
company_name: "VISTA GOLD CORP"
filed_at: "2023-03-14T23:59:59+00:00"
generated_at: "2026-06-18T04:03:50.615045+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Vista Gold Chair Michael Richings and Director Thomas Ogryzlo to retire at April 27 AGM

## Summary
- Michael Richings (Chair) and Thomas Ogryzlo (director) to retire at April 27, 2023 AGM; will not stand for re-election.
- Board reduces from seven to five members effective after AGM.
- Retirements not due to disagreement with Board or management.
- Richings served since 1995; led acquisition of Mt Todd and spinouts. Ogryzlo influenced project designs.

## SEC filing metadata
- accession: 0000783324-23-000014
- form_type: 8-K
- ticker: VGZ
- cik: 0000783324
- company_name: VISTA GOLD CORP
- filed_at: 2023-03-14T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/783324/000078332423000014/0000783324-23-000014-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/783324/000078332423000014/vgz-20230310x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000783324-23-000014
- JSON: https://secwatch.observer/filing/0000783324-23-000014.json
- Plain text: https://secwatch.observer/filing/0000783324-23-000014.txt

## Key facts
- Executive change
  Michael Richings departed as Chair of the Board at VISTA GOLD CORP.
  - Action: intent to retire
  - Role: Chair of the Board
  source text: On March 10, 2023, Michael Richings, Chair of the Board and Thomas Ogryzlo, director, informed the Board of Directors of Vista Gold Corp. (the “Company”) of their intent to retire upon the completion of their terms at the Company’s Annual General and Special Meeting of Shareholders (“AGM”) to be held on April 27, 2023 and as such would not stand for re-election at the AGM.
  evidence_url: https://www.sec.gov/Archives/edgar/data/783324/000078332423000014/0000783324-23-000014-index.htm
- Executive change
  Thomas Ogryzlo departed as director at VISTA GOLD CORP.
  - Action: intent to retire
  - Role: director
  source text: On March 10, 2023, Michael Richings, Chair of the Board and Thomas Ogryzlo, director, informed the Board of Directors of Vista Gold Corp. (the “Company”) of their intent to retire upon the completion of their terms at the Company’s Annual General and Special Meeting of Shareholders (“AGM”) to be held on April 27, 2023 and as such would not stand for re-election at the AGM.
  evidence_url: https://www.sec.gov/Archives/edgar/data/783324/000078332423000014/0000783324-23-000014-index.htm

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