Company: BCDRF
Filing Date: 2025-02-28
Form Type: 20-F
Source: 0000891478-25-000054
Chunk: 241

Company: Banco Santander, S.A.
Filing Date: 2025-02-28
Form: 20-F
Chunk 241
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 register                                          |     | Shareholder name |     | % voting rightsA |
| 04/10/2024                                                              |     | BlackRock Inc    |     |            6.875 |
| A. Includes voting rights attached to shares and financial instruments. |     |                  |     |                  |

The changes notified to the CNMV in 2024 with regard to significant shareholdings are detailed below:

| Significant shareholding. Changes in 2024                               |     |                  |     |             |     |               |
| Date of entry in CNMV register                                          |     | Shareholder name |     | Previous %A |     | Subsequent %A |
| 18/06/2024                                                              |     | Dodge & Cox      |     |       3.038 |     |         2.937 |
| 04/10/2024                                                              |     | Blackrock Inc    |     |       5.426 |     |         6.875 |
| A. Includes voting rights attached to shares and financial instruments. |     |                  |     |             |     |               |

Likewise, though as at 31 December 2024 certain custodians appeared in our shareholder registry as holding more than 3% of our share capital, we understand that those shares were held on behalf of other investors, none of whom exceeded that threshold individually. These custodians were State Street Bank (15.26%), The Bank of New York Mellon Corporation (7.16%), Chase Nominees Limited (6.01%), Citibank (3.99%) and BNP Paribas (3.36%).

Annual report 2024 242

| Contents |     | Business model and strategy |     | Sustainability statement |     | Corporate governance |     | Economic and financial review |     | Riskmanagement and compliance |

There may be some overlap in the holdings declared by these custodians and the above mentioned asset manager.

Lastly, as at 31 December 2024, neither our shareholder register nor the CNMV's register showed any investor residing in a non-cooperative jurisdiction holding at least 1% of our voting rights (which is the mandatory disclosure threshold applicable to such investors under Spanish law).

Our Bylaws and the Rules and regulations of the board of directors set out a regime to analyse and approve transactions with shareholders holding more than 10% of the voting rights. See section 4.12 'Related-party transactions and other conflicts of interest' .

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