{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-035267","form_type":"8-K","ticker":"HL","cik":"0000719413","company_name":"HECLA MINING CO/DE/","filed_at":"2024-02-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:26.745523+00:00","generated_at":"2026-06-06T02:49:06.872385+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"Hecla reports second-highest silver reserves at 238M oz and largest gold resource in history","bullets":["Silver reserves 238M oz, only 1% below all-time high; Keno Hill reserves up 10% to 55M oz (45% since acquisition).","Gold reserves down 16% to 2.1M oz due to Casa Berardi surface transition; M&I gold resources up 21% to 4.4M oz.","Drilling highlights: 54.0 oz/ton Ag over 39.5 ft at Keno Hill Footwall Vein; 63.4 oz/ton Ag over 26 ft at Greens Creek West Zone.","ATAC Resources acquisition adds 700 sq mi land package; Hecla expects to be Canada's largest silver producer in 2024."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-035267","json":"https://secwatch.observer/filing/0001193125-24-035267.json","markdown":"https://secwatch.observer/filing/0001193125-24-035267.md","text":"https://secwatch.observer/filing/0001193125-24-035267.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/719413/000119312524035267/0001193125-24-035267-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/719413/000119312524035267/d755347d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-06T02:49:06.872385+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"}