{"filing":{"accession_number":"0001062993-26-004583","cik":"0001698535","ticker":"NXE","company_name":"NexGen Energy Ltd.","form":"6-K","filing_date":"2026-08-25","report_date":"2026-08-25","primary_document":"form6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1698535/000106299326004583/form6k.htm"},"events":[{"id":29297,"run_id":26812,"accession_number":"0001062993-26-004583","anchor_item_number":"EX-99.1","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"summary":"This exhibit is a drilling results announcement from NexGen Energy's Patterson Corridor East (PCE) uranium exploration project. The disclosure reports significant expansion of high-grade mineralization (vertical extent increased 17% to 644 m), discovery of multiple stacked uranium veins with strong continuity, and the company's decision to add a fifth drill rig to accelerate development. While exploration results are not a discrete event type in the taxonomy, this represents a material operational/strategic milestone that would affect investor assessment of the company's long-term resource base and project advancement trajectory, particularly given the company's parallel construction of the Rook I Project.","company_name":"NexGen Energy Ltd.","ticker":"NXE","filing_date":"2026-08-25","form":"6-K","submitted_at":null,"items":[{"id":31533,"accession_number":"0001062993-26-004583","item_number":"EX-99.1","item_title":"exhibit99-1.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"This exhibit is a drilling results announcement from NexGen Energy's Patterson Corridor East (PCE) uranium exploration project. The disclosure reports significant expansion of high-grade mineralization (vertical extent increased 17% to 644 m), discovery of multiple stacked uranium veins with strong continuity, and the company's decision to add a fifth drill rig to accelerate development. While exploration results are not a discrete event type in the taxonomy, this represents a material operational/strategic milestone that would affect investor assessment of the company's long-term resource base and project advancement trajectory, particularly given the company's parallel construction of the Rook I Project.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-25T10:32:41.102179+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":31533,"accession_number":"0001062993-26-004583","item_number":"EX-99.1","item_title":"exhibit99-1.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"This exhibit is a drilling results announcement from NexGen Energy's Patterson Corridor East (PCE) uranium exploration project. The disclosure reports significant expansion of high-grade mineralization (vertical extent increased 17% to 644 m), discovery of multiple stacked uranium veins with strong continuity, and the company's decision to add a fifth drill rig to accelerate development. While exploration results are not a discrete event type in the taxonomy, this represents a material operational/strategic milestone that would affect investor assessment of the company's long-term resource base and project advancement trajectory, particularly given the company's parallel construction of the Rook I Project.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-25T10:32:41.102179+00:00","company_name":"NexGen Energy Ltd.","ticker":"NXE","filing_date":"2026-08-25"}]}