BANCO SANTANDER, S.A. from 17/03/2023 to 17/03/2023 17/03/2023 14:00 BANCO SANTANDER, S.A. Other relevant information Banco Santander reduces its share capital by 2.03% to cancel the shares acquired in the share buy-back programme carried out between November 2022 and January 2023 (correction of the communication issuance date) Register number: 21422 Notification modified by communication number 21388 dated 16/03/2023 (12:13)