Company: BCDRF
Filing Date: 2025-07-30
Form Type: 6-K
Source: 0000891478-25-000103
Chunk: 11

Company: Banco Santander, S.A.
Filing Date: 2025-07-30
Form: 6-K
Chunk 11
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 future corporate and regulatory decisions and approvals.

2. Net Promoter Score, internal benchmark of individual customers' satisfaction audited by Stiga/Deloitte in H1 2025.

3. As % of total operating areas, excluding the Corporate Centre.

| January - June2025 |     | 9 |

| Significant events    
 Key consolidated data 
 Business model        |     | Group financial information |     | Financial information by segment |     | Sustainability       
 Corporate governance |     | Appendix |     | Index |
|                       |     | Statutory income statement  |     |                                  |     |                      |     |          |     |       |

### Grupo Santander results
As a result of the announcement of the Poland disposal and in accordance with IFRS 5 requirements, in the statutory income statement, results associated with the business subject to the Poland disposal are reported under a single line in the consolidated income statement — 'profit/(loss) after tax from discontinued operations' — for results corresponding to both 2025 and 2024 . Consequently, the results from the Poland disposal perimeter are excluded line by line from the breakdown of continuing operations in both periods. For further information, see the ' Significant events in the period ' section of this report.

| Grupo Santander. Summarized income statement                                                                     |     |           |       |     |           |       |        |       |   |     |           |       |        |           |       |     |       |   |
| EUR  million                                                                                                     |     |           |       |     |           |       |        |       |   |     |           |       |        |           |       |     |       |   |
|                                                                                                                  |     |           |       |     |           |       | Change |       |   |     |           |       | Change |           |       |     |       |   |
|                                                                                                                  |     |           | Q2'25 |     |           | Q1'25 |        |       | % |     |           | H1'25 |        |           | H1'24 |     |       | % |
| Net interest income                                                                                              |     |    10,590 |       |     |    10,621 |       |        |  -0.3 |   |     |    21,211 |       |        |    22,056 |       |     |  -3.8 |   |
| Net fee income1                                                                                                  |     |