{"filing":{"accession_number":"0001104659-26-085183","cik":"0001073404","ticker":"GGB","company_name":"GERDAU S.A.","form":"6-K","filing_date":"2026-07-21","report_date":null,"primary_document":"tm2620929d1_6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1073404/000110465926085183/tm2620929d1_6k.htm"},"events":[{"id":18923,"run_id":17023,"accession_number":"0001104659-26-085183","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 CELESC for an enterprise value of R$150 million (approximately R$154 million total cash disbursement). This is a material acquisition transaction that expands the company's renewable energy self-production capacity and is aligned with its decarbonization strategy, directly affecting the registrant's capital allocation and competitive position.","company_name":"GERDAU S.A.","ticker":"GGB","filing_date":"2026-07-21","form":"6-K","submitted_at":null,"items":[{"id":17880,"accession_number":"0001104659-26-085183","item_number":"EX-99.1","item_title":"tm2620929d1_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 CELESC for an enterprise value of R$150 million (approximately R$154 million total cash disbursement). This is a material acquisition transaction that expands the company's renewable energy self-production capacity and is aligned with its decarbonization strategy, directly affecting the registrant's capital allocation and competitive position.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-07-21T10:08:12.353990+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":17880,"accession_number":"0001104659-26-085183","item_number":"EX-99.1","item_title":"tm2620929d1_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 CELESC for an enterprise value of R$150 million (approximately R$154 million total cash disbursement). This is a material acquisition transaction that expands the company's renewable energy self-production capacity and is aligned with its decarbonization strategy, directly affecting the registrant's capital allocation and competitive position.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-07-21T10:08:12.353990+00:00","company_name":"GERDAU S.A.","ticker":"GGB","filing_date":"2026-07-21"}]}