{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-23-111112","form_type":"8-K","ticker":"MUX","cik":"0000314203","company_name":"McEwen Inc.","filed_at":"2023-10-24T23:59:59+00:00","discovered_at":"2026-05-14T18:03:31.617042+00:00","generated_at":"2026-06-09T14:54:40.119814+00:00","sec_items":["1.01","3.02","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"McEwen Mining closes $10M Nuton investment in McEwen Copper; ownership drops to 47.7%","bullets":["Nuton (Rio Tinto) purchased 152,615 shares in private placement ($4M to McEwen Copper) and 232,000 shares secondary ($6M to McEwen Mining).","Post-transaction: McEwen Mining owns 47.7% of McEwen Copper; Nuton owns 14.5%.","Amendment No. 2 to Nuton Collaboration Agreement extends exclusivity over copper heap leach tech until Feb 1, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-23-111112","json":"https://secwatch.observer/filing/0001104659-23-111112.json","markdown":"https://secwatch.observer/filing/0001104659-23-111112.md","text":"https://secwatch.observer/filing/0001104659-23-111112.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/314203/000110465923111112/0001104659-23-111112-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/314203/000110465923111112/tm2328271d2_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-09T14:54:40.119814+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":[{"claim_id":"135aba82ba1a6adf5d0f40c6892fda9fb541646f","claim":"McEwen Inc. entered into Subscription Agreement with Nuton LLC valued at purchase of 152,615 shares of McEwen Copper for approximately $4 million in proceeds (effective 2023-10-18).","evidence_excerpt":"McEwen Copper and Nuton entered into a definitive private placement subscription agreement (the “ Subscription Agreement ”) pursuant to which Nuton purchased 152,615 shares of McEwen Copper from McEwen Copper","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/314203/000110465923111112/0001104659-23-111112-index.htm","confidence":0.95,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"equity purchase"},{"label":"Counterparty","value":"Nuton LLC"},{"label":"Value","value":"purchase of 152,615 shares of McEwen Copper for approximately $4 million in proceeds"},{"label":"Effective","value":"2023-10-18"}],"fact_type":"material_agreement"},{"claim_id":"b3161f78464434fd1a44bde94051ab4178f19c91","claim":"McEwen Inc. entered into Share Purchase Agreement with Nuton LLC valued at purchase of 232,000 shares of McEwen Copper from the Company for approximately $6 million in proceed (effective 2023-10-18).","evidence_excerpt":"the Company, Minera Andes Inc., a subsidiary of the Company, McEwen Copper and Nuton entered into a definitive share purchase agreement (the “Share Purchase Agreement”) pursuant to which Nuton purchased 232,000 shares of McEwen Copper from the Company in a secondary sale","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/314203/000110465923111112/0001104659-23-111112-index.htm","confidence":0.95,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"equity purchase"},{"label":"Counterparty","value":"Nuton LLC"},{"label":"Value","value":"purchase of 232,000 shares of McEwen Copper from the Company for approximately $6 million in proceed"},{"label":"Effective","value":"2023-10-18"}],"fact_type":"material_agreement"},{"claim_id":"fdeb09b44d0b4f02ada3308a4a7f57ae333f7943","claim":"McEwen Inc. amended Amendment No. 2 to Nuton Collaboration Agreement with Nuton LLC valued at amended to extend the period of exclusivity over novel, trade secret or patented copper heap leach t (effective 2023-10-18).","evidence_excerpt":"McEwen Copper and certain of its affiliates entered into Amendment No. 2 to Nuton Collaboration Agreement, dated October 18, 2023, to amend the Nuton Collaboration Agreement, dated August 30, 2022, as amended by Amendment No. 1 to the Nuton Collaboration Agreement, dated March 9, 2023, to extend the period of exclusivity over novel, trade secret or patented copper heap leach technologies until February 1, 2025","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/314203/000110465923111112/0001104659-23-111112-index.htm","confidence":0.95,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"collaboration"},{"label":"Counterparty","value":"Nuton LLC"},{"label":"Value","value":"amended to extend the period of exclusivity over novel, trade secret or patented copper heap leach t"},{"label":"Effective","value":"2023-10-18"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}