Company: BCDRF
Filing Date: 2025-04-30
Form Type: 6-K
Source: 0000891478-25-000078
Chunk: 70

Company: Banco Santander, S.A.
Filing Date: 2025-04-30
Form: 6-K
Chunk 70
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 a translation of a document originally issued in Spanish. Should there be any discrepancies between the English and the Spanish versions, only the original Spanish version should be binding. |

| January - March2025 |     | 91 |

### SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

|                        |     | Banco Santander, S.A. |     |                         |
| Date:    30 April 2025 |     | By:                   |     | /s/ José García Cantera |
|                        |     | Name:                 |     | José García Cantera     |
|                        |     | Title:                |     | Chief Financial Officer |