---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-005103"
form_type: "8-K"
ticker: "MUX"
cik: "0000314203"
company_name: "McEwen Inc."
filed_at: "2026-01-20T23:59:59+00:00"
generated_at: "2026-05-16T09:39:44.600374+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# McEwen reports Tartan drilling results and 23% increase in Grey Fox Indicated gold resource to 1.9M oz

## Summary
- Tartan step-out drilling: 7.5 gpt gold over 18.9 m on Western Flank; acquisition closed Jan 5, 2026; resource estimate due Feb 2026.
- Grey Fox Indicated resource +23% to 1.9M oz (19.5M tonnes @ 3.02 gpt); Inferred 436,000 oz (5.1M tonnes @ 2.66 gpt).
- Grey Fox PFS due Q2 2026; $5-10M drilling budget; Stroud historical resource ~270,000 oz to be validated.
- Tartan: $3M exploration budget; 90% of 39 holes hit mineralization; Main Zone widening at depth with high grades.

## SEC filing metadata
- accession: 0001104659-26-005103
- form_type: 8-K
- ticker: MUX
- cik: 0000314203
- company_name: McEwen Inc.
- filed_at: 2026-01-20T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/314203/000110465926005103/0001104659-26-005103-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/314203/000110465926005103/tm263643d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-005103
- JSON: https://secwatch.observer/filing/0001104659-26-005103.json
- Plain text: https://secwatch.observer/filing/0001104659-26-005103.txt

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