Banco Santander, S.A. Share Buyback Program Update

Banco Santander, S.A. has reported on its share buyback program for the period of July 2-8, 2026. The total cash amount spent on repurchasing shares during this period was €3,756,788,259, which represents approximately 74.7% of the program's maximum investment. As a result of these transactions, the bank has repurchased approximately 17.4% of its outstanding shares as of 2021. The filing details individual transactions, including the number of shares purchased and the weighted average price, executed on the XMAD trading venue. This report is made in compliance with EU Market Abuse Regulations.