{"schema_version":"secwatch.filing_event.v1","accession":"0000783324-25-000051","form_type":"8-K","ticker":"VGZ","cik":"0000783324","company_name":"VISTA GOLD CORP","filed_at":"2025-09-11T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.361471+00:00","generated_at":"2026-05-17T06:56:25.664617+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Vista Gold reports Mt Todd FS: after-tax NPV $1.06B, IRR 27.8%, initial capex $425M","bullets":["Initial capital $425M, 59% reduction from prior 50ktpd FS; capital efficiency $93/oz.","Proven & Probable Reserves: 5.2M oz gold (172M tonnes at 0.94 g/t) at $1,800/oz gold price.","After-tax NPV5% $1.06B and IRR 27.8% at $2,500/oz gold; payback period 2.7 years.","Average annual production: 153k oz years 1-15, 146k oz LOM; AISC $1,449/oz years 1-15.","Mineral Resources (excl. reserves): Measured & Indicated 3.9M oz, Inferred 1.4M oz."],"urls":{"canonical":"https://secwatch.observer/filing/0000783324-25-000051","json":"https://secwatch.observer/filing/0000783324-25-000051.json","markdown":"https://secwatch.observer/filing/0000783324-25-000051.md","text":"https://secwatch.observer/filing/0000783324-25-000051.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/783324/000078332425000051/0000783324-25-000051-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/783324/000078332425000051/vgz-20250911x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T06:56:25.664617+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}