Banco Santander, S.A. Share Buyback Program Update

Banco Santander, S.A. reported on its ongoing share buyback program, providing an update on transactions conducted between March 26 and April 7, 2026. During this period, the bank purchased a total of 31,955,792 shares. The total cash amount spent on these repurchases reached €2,705,434,576, which represents approximately 53.8% of the maximum investment allocated for the buyback program. As a result of these purchases, Banco Santander has repurchased roughly 16.8% of its outstanding shares as of 2021. The filing details individual transactions, including the date, security, transaction type (purchase), trading venue, number of shares, and weighted average price. The report was filed on April 8, 2026, and is in compliance with relevant EU regulations on market abuse and delegated regulations concerning share buybacks.