Company: BCDRF
Filing Date: 2025-07-31
Form Type: 6-K
Source: 0000891478-25-000113
Chunk: 194

Company: Banco Santander, S.A.
Filing Date: 2025-07-31
Form: 6-K
Chunk 194
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 lending and short positions.

(B) Purchases relate to the Second 2024 Buyback Programme. For more information see 'Corporate Governance. Section 2.5 Treasury shares' in Part 1 of our 2024 Form 20-F and note 11 to our interim consolidated financial statements in Part 1 of this report on Form 6-K.

During the first six months of 2025, all purchases and sales of equity securities were made in open-market transactions.

| 204 |     | January - June 2025 |

### 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:   31 July 2025 |     | By:                   |     | /s/ José García Cantera |
|                      |     | Name:                 |     | José García Cantera     |
|                      |     | Title:                |     | Chief Financial Officer |