---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-109364"
form_type: "8-K"
ticker: "VGZ"
cik: "0000783324"
company_name: "VISTA GOLD CORP"
filed_at: "2026-09-21T21:17:51+00:00"
generated_at: "2026-09-21T21:20:40.915416+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Artemis Gold to acquire Vista Gold for $2.83/share in all-stock deal worth ~$427M

## Summary
- Vista shareholders get 0.0966 Artemis shares per Vista share; implies US$2.83/share, 29% premium to 20-day VWAP and 25% to last close.
- Total transaction value ~US$427M on 100% basis; no cash consideration and no new debt incurred.
- Pro-forma ownership: existing Artemis and Vista holders ~95% and ~5% respectively; Artemis cancels its 4.95% stake.
- Mt Todd project hosts 9.1M oz M&I and 1.4M oz Inferred resources; permits for 50,000 tpd processing facility already granted.
- Transaction requires 66 2/3% shareholder approval and court/regulatory clearance; expected to close in Q1 2027.

## SEC filing metadata
- accession: 0001104659-26-109364
- form_type: 8-K
- ticker: VGZ
- cik: 0000783324
- company_name: VISTA GOLD CORP
- filed_at: 2026-09-21T21:17:51+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/783324/000110465926109364/0001104659-26-109364-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/783324/000110465926109364/tm2625813d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-109364
- JSON: https://secwatch.observer/filing/0001104659-26-109364.json
- Plain text: https://secwatch.observer/filing/0001104659-26-109364.txt

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