{"filing":{"accession_number":"0000950103-26-012672","cik":"0000891478","ticker":"BCDRF","company_name":"Banco Santander, S.A.","form":"6-K","filing_date":"2026-08-20","report_date":"2026-08-20","primary_document":"dp251664_6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/891478/000095010326012672/dp251664_6k.htm"},"events":[{"id":28652,"run_id":26217,"accession_number":"0000950103-26-012672","anchor_item_number":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"The filing announces completion of the acquisition of Webster Financial Corporation on 20 August 2026, together with execution of a capital increase (issuance of 329.8 million new shares at EUR 10.7896 per share, raising EUR 3.56 billion) to finance the acquisition. This is a material M\u0026A completion with a concurrent dilutive equity issuance, directly affecting shareholder value and the registrant's capital structure.","company_name":"Banco Santander, S.A.","ticker":"BCDRF","filing_date":"2026-08-20","form":"6-K","submitted_at":null,"items":null}],"classifications":[{"id":30666,"accession_number":"0000950103-26-012672","item_number":null,"item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"The filing announces completion of the acquisition of Webster Financial Corporation on 20 August 2026, together with execution of a capital increase (issuance of 329.8 million new shares at EUR 10.7896 per share, raising EUR 3.56 billion) to finance the acquisition. This is a material M\u0026A completion with a concurrent dilutive equity issuance, directly affecting shareholder value and the registrant's capital structure.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-20T10:06:50.628694+00:00","company_name":"Banco Santander, S.A.","ticker":"BCDRF","filing_date":"2026-08-20"}]}