Company: BCDRF
Filing Date: 2025-04-30
Form Type: 6-K
Source: 0000891478-25-000084
Chunk: 43

Company: Banco Santander, S.A.
Filing Date: 2025-04-30
Form: 6-K
Chunk 43
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• Increase of EUR 21 million in the cumulative actuarial losses relating to the Group's businesses in Portugal, mainly due to the behaviour of the asset portfolio.

• Increase of EUR 5 million in the cumulative actuarial losses relating to the Group's businesses in other geographical areas.

In second place, due to the evolution of exchange rates, a EUR 3 million increase.

| 34 |     | January - March 2025 |

#### e)
Other comprehensive income - Items not reclassified to profit or loss – Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income

Includes the net amount of unrealised fair value changes in equity instruments at fair value with changes in other comprehensive income.

Below is a breakdown of the composition of the balance as of 31 March 2025 and 31 December 2024 under 'Other comprehensive income - Items not reclassified to profit or loss - Changes in the fair value of equity instruments measured at fair value with changes in other comprehensive income' depending on the geographical origin of the issuer:

|                        |     | EUR million       |       |     |                    |        |     |                                |        |     |            |       |     |                   |     |     |                    |        |     |                                |        |     |            |       |
|                        |     | 31-03-2025        |       |     |                    |        |     |                                |        |     |            |       |     | 31-12-2024        |     |     |                    |        |     |                                |        |     |            |       |
|                        |     | Revaluation gains |       |     | Revaluation losses |        |     | Net revaluation gains/(losses) |        |     | Fair value |       |     | Revaluation gains |     |     | Revaluation losses |        |     | Net revaluation gains/(losses) |        |     | Fair value |       |
| Equity instruments     |     |                   |       |     |                    |        |     |                                |        |     |            |       |     |                   |     |     |                    |        |     |                                |        |     |            |       |
| Domestic               |     |                   |       |     |                    |        |     |                                |        |     |            |       |     |                   |     |     |                    |        |     |                                |        |     |            |