Company: BCDRF
Filing Date: 2025-10-29
Form Type: 6-K
Source: 0000891478-25-000138
Chunk: 7

Company: Banco Santander, S.A.
Filing Date: 2025-10-29
Form: 6-K
Chunk 7
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 (*)                    |     |             | 7,747 |     |               | 41,604 |     |                                         | 744 |     |                          | 213 |     |                               | 82,324 |     |                      | — |     |                | -5,887 |     |            |   -459 |     |                                                   |   9,309 |     |                   | -1,525 |     |                            | -37,471 |     |                          | -1,852 |     | 10,316 |     |       | 105,063 |

<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>

| 10 |     | January - September 2025 |

<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 CASH FLOWS
<div align='center'>FOR THE NINE-MONTH PERIODS ENDED 30 SEPTEMBER 2025 AND 2024

(EUR million)</div>

|                                                                                                   |     | Note |     | 30-09-2025 |         |        | 30-09-2024 (*) |         |         |
| A. CASH FLOWS FROM OPERATING ACTIVITIES                                                           |     |      |     |     -7,818 |         |        |                | -47,128 |         |
| Profit/(loss) for the period                                                                      |     |      |     |            |         | 11,353 |                |         |  10,181 |
| Adjustments made to obtain the cash flows from operating activities                               |     |      |     |            |         | 24,130 |                |         |  22,155 |
| Depreciation and amortisation cost                                                                |     |      |     |            |   2,422 |        |                |   2,470 |         |
| Other adjustments                                                                                 |     |      |     |            |  21