Company: BCDRF
Filing Date: 2025-10-29
Form Type: 6-K
Source: 0000891478-25-000138
Chunk: 5

Company: Banco Santander, S.A.
Filing Date: 2025-10-29
Form: 6-K
Chunk 5
---
     |                          |      — |     |     -5 |     |       |      -5 |
| Share-based payment                             |     |             |     — |     |               |      — |     |                                         | — |     |                          | -67 |     |                               |      — |     |                      | — |     |                |      — |     |            |      — |     |                                                   |       — |     |                   |      — |     |                            |       — |     |                          |      — |     |      — |     |       |     -67 |
| Others increases or (-) decreases of the equity |     |             |     — |     |               |      — |     |                                         | — |     |                          | 121 |     |                               |      — |     |                      | — |     |                |   -686 |     |            |      — |     |                                                   |       — |     |                   |      — |     |                            |       — |     |                          |      — |     |      — |     |       |    -565 |
| Balance as at 30-09-2025                        |     |             | 7,443 |     |               | 38,492 |     |                                         | — |     |                          | 271 |     |                               | 91,954 |     |                      | — |     |                | -7,180 |     |            |   -532 |     |                                                   |  10,337 |     |                   | -1,704 |     |                            | -38,004 |     |                          | -2,048 |     | 10,885 |     |       | 109,914 |

<div align='center'>(*) Presented for comparison purposes only (see Note 1.e).

The accompanying explanatory Notes 1 to 17 are an integral part of the condensed consolidated statement of changes in total equity

for the nine-month period ended 30 September 2025.</div>

| January - September 2025 |     | 9 |

<div align='center'>Translation of interim condensed consolidated financial statements originally issued in Spanish and prepared in accordance with the regulatory financial reporting framework applicable to the Group in Spain (see Notes 1 and 17). In the event of a discrepancy, the Spanish-language version prevails.</div>

### GRUPO SANTANDER

### CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN TOTAL EQU