{"filing":{"accession_number":"0001104659-26-092126","cik":"0001073404","ticker":"GGB","company_name":"GERDAU S.A.","form":"6-K","filing_date":"2026-08-06","report_date":"2026-08-06","primary_document":"tm2622494d1_6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1073404/000110465926092126/tm2622494d1_6k.htm"},"events":[{"id":24674,"run_id":22371,"accession_number":"0001104659-26-092126","anchor_item_number":"EX-99.1","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"Gerdau S.A. announces the completion of the acquisition of a 23.03% equity stake in Dona Francisca Energética S.A. (DFESA) from COPEL for R$150 million in cash. This is a material acquisition transaction that expands the company's renewable energy self-production capacity and is aligned with its decarbonization strategy, meeting the definition of ma_activity (completion of a material acquisition).","company_name":"GERDAU S.A.","ticker":"GGB","filing_date":"2026-08-06","form":"6-K","submitted_at":null,"items":[{"id":25316,"accession_number":"0001104659-26-092126","item_number":"EX-99.1","item_title":"tm2622494d1_ex99-1.htm","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"Gerdau S.A. announces the completion of the acquisition of a 23.03% equity stake in Dona Francisca Energética S.A. (DFESA) from COPEL for R$150 million in cash. This is a material acquisition transaction that expands the company's renewable energy self-production capacity and is aligned with its decarbonization strategy, meeting the definition of ma_activity (completion of a material acquisition).","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-07T00:35:45.378938+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":25316,"accession_number":"0001104659-26-092126","item_number":"EX-99.1","item_title":"tm2622494d1_ex99-1.htm","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"Gerdau S.A. announces the completion of the acquisition of a 23.03% equity stake in Dona Francisca Energética S.A. (DFESA) from COPEL for R$150 million in cash. This is a material acquisition transaction that expands the company's renewable energy self-production capacity and is aligned with its decarbonization strategy, meeting the definition of ma_activity (completion of a material acquisition).","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-07T00:35:45.378938+00:00","company_name":"GERDAU S.A.","ticker":"GGB","filing_date":"2026-08-06"}]}