Banco Santander Share Buyback Program Update

Banco Santander, S.A. reported on its share buyback program, executing transactions between July 9 and July 15, 2026. The total cash amount spent on repurchased shares during this period was €3,899,027,041, representing approximately 77.5% of the program's maximum investment. The bank has now 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 on various trading venues like XMAD and CEUX. This report is made in compliance with EU Market Abuse regulations.