Banco Santander(SAN) - 2023 Q4 - Annual Report

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ending 31 December 2023 OR Kingdom of Spain (Jurisdiction of incorporation) Ciudad Grupo Santander 28660 Boadilla del Monte (Madrid), Spain (address of principal executive offices) José G. Cantera ☐ TRANSITION REPORT PURSUANT ...