{"filing":{"accession_number":"0001132597-26-000198","cik":"0001132597","ticker":"ITUB","company_name":"Itau Unibanco Holding S.A.","form":"6-K","filing_date":"2026-07-14","report_date":null,"primary_document":"a6-k_itubx14072026x.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1132597/000113259726000198/a6-k_itubx14072026x.htm"},"events":[{"id":17787,"run_id":15949,"accession_number":"0001132597-26-000198","anchor_item_number":"EX-99.1","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.75,"summary":"The Company announces exercise of a repurchase option on Tier 1 Subordinated perpetual Financial Bills totaling BRL 1.4 billion, issued in 2019. This is a material capital management action affecting the Company's Tier 1 capital ratio by approximately 10 basis points. While technically a redemption/repurchase rather than a new issuance, it represents a material modification of the Company's direct financial obligations and capital structure, most closely aligned with debt_issuance in the taxonomy as it involves a significant debt instrument transaction.","company_name":"Itau Unibanco Holding S.A.","ticker":"ITUB","filing_date":"2026-07-14","form":"6-K","submitted_at":null,"items":[{"id":16392,"accession_number":"0001132597-26-000198","item_number":"EX-99.1","item_title":"comunicadoaomercado_reco.htm","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"The Company announces exercise of a repurchase option on Tier 1 Subordinated perpetual Financial Bills totaling BRL 1.4 billion, issued in 2019. This is a material capital management action affecting the Company's Tier 1 capital ratio by approximately 10 basis points. While technically a redemption/repurchase rather than a new issuance, it represents a material modification of the Company's direct financial obligations and capital structure, most closely aligned with debt_issuance in the taxonomy as it involves a significant debt instrument transaction.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-07-14T13:21:38.143714+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":16392,"accession_number":"0001132597-26-000198","item_number":"EX-99.1","item_title":"comunicadoaomercado_reco.htm","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"The Company announces exercise of a repurchase option on Tier 1 Subordinated perpetual Financial Bills totaling BRL 1.4 billion, issued in 2019. This is a material capital management action affecting the Company's Tier 1 capital ratio by approximately 10 basis points. While technically a redemption/repurchase rather than a new issuance, it represents a material modification of the Company's direct financial obligations and capital structure, most closely aligned with debt_issuance in the taxonomy as it involves a significant debt instrument transaction.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-07-14T13:21:38.143714+00:00","company_name":"Itau Unibanco Holding S.A.","ticker":"ITUB","filing_date":"2026-07-14"}]}