Company: BCDRF
Filing Date: 2025-07-31
Form Type: 6-K
Source: 0000891478-25-000111
Chunk: 91

Company: Banco Santander, S.A.
Filing Date: 2025-07-31
Form: 6-K
Chunk 91
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 (*)                    |     |             | 7,747 |     |               | 41,604 |     |                                         | 735 |     |                          | 189 |     |                               | 82,324 |     |                      | — |     |                | -5,816 |     |            |     -6 |     |                                                   |   6,059 |     |                   |      — |     |                            | -36,963 |     |                          | -1,872 |     |  9,647 |     |       | 103,648 |

<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 six-month period ended 30 June 2025.</div>

| January - June 2025 |     | 105 |

<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 SIX-MONTH PERIODS ENDED 30 JUNE 2025 AND 2024

(EUR million)</div>

|                                                                                                   |     | Note |     | 30-06-2025 |         |        | 30-06-2024 (*) |         |        |
| A. CASH FLOWS FROM OPERATING ACTIVITIES                                                           |     |      |     |      2,604 |         |        |                | -60,172 |        |
| Profit/(loss) for the period                                                                      |     |      |     |            |         |  7,463 |                |         |  6,592 |
| Adjustments made to obtain the cash flows from operating activities                               |     |      |     |            |         | 17,400 |                |         | 13,925 |
| Depreciation and amortisation cost                                                                |     |      |     |            |   1,626 |        |                |   1,656 |        |
| Other adjustments                                                                                 |     |      |     |            |  15,774 |