BANCO SANTANDER, S.A. «12345...» Page 4 out of 22 20/12/2023 07:32 BANCO SANTANDER, S.A. On business and financial situation Adapting financial reporting to the new operating model Register number: 25895 20/12/2023 07:29 BANCO SANTANDER, S.A. On business and financial situation Santander adapts past financial disclosures to reflect new primary segments Register number: 25894 14/12/2023 11:59 BANCO SANTANDER, S.A. Share buy-back , stabilisation and treasury stock programmes Banco Santander communicates the transactions over its own shares which it has carried out between 5 and 13 December under the buyback programme Register number: 25797 13/12/2023 08:00 BANCO SANTANDER, S.A. On financial instruments Optional early redemption of all outstanding Non-Step-Up Non-Cumulative Contingent Convertible Perpetual Preferred Tier 1 Securities (ISIN XS1951093894) Register number: 25774 05/12/2023 12:02 BANCO SANTANDER, S.A. Share buy-back , stabilisation and treasury stock programmes Banco Santander communicates the transactions over its own shares which it has carried out between 30 November and 4 December under the buyback programme Register number: 25701 30/11/2023 12:06 BANCO SANTANDER, S.A. Share buy-back , stabilisation and treasury stock programmes Banco Santander communicates the transactions over its own shares which it has carried out between 23 and 29 November under the buyback programme Register number: 25600 23/11/2023 12:00 BANCO SANTANDER, S.A. Share buy-back , stabilisation and treasury stock programmes Banco Santander communicates the transactions over its own shares which it has carried out between 16 and 22 November under the buyback programme Register number: 25509 22/11/2023 08:03 BANCO SANTANDER, S.A. On financial instruments Optional early redemption of all outstanding Non-Step-Up Non-Cumulative Contingent Convertible Perpetual Preferred Tier 1 Securities with ISIN code XS1692931121 Register number: 25495 16/11/2023 22:52 BANCO SANTANDER, S.A. On financial instruments Banco Santander announces that it has completed placement of two series of preferred securities contingently convertible into newly issued ordinary shares of the Bank Register number: 25446 16/11/2023 15:19 BANCO SANTANDER, S.A. Share buy-back , stabilisation and treasury stock programmes Banco Santander communicates the transactions over its own shares which it has carried out between 8 and 15 November under the buyback programme Register number: 25431 Notification modified by communication number 25425 dated 16/11/2023 (12:01) Page 4 out of 22 «12345...»