Company: BCDRF
Filing Date: 2025-01-08
Form Type: 424B5
Source: 0001193125-25-003514
Chunk: 8

Company: Banco Santander, S.A.
Filing Date: 2025-01-08
Form: 424B5
Chunk 8
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 respect to the Notes as it may be imposed, without any further action or direction on the part of such holder.

Neither Banco Santander nor the Underwriters (as defined in “Underwriting (Conflicts of Interest)” in this prospectus supplement) have authorized anyone to provide you with information other than information contained or incorporated by reference in this prospectus supplement and the accompanying prospectus (including any free writing prospectus issued or authorized by us). The distribution of this prospectus supplement and the accompanying prospectus and the offering of the Notes in some jurisdictions may be restricted by law. If you possess this prospectus supplement and the accompanying prospectus, you should find out about and observe these restrictions. This prospectus supplement and the accompanying prospectus are not an offer to sell the Notes and neither Banco Santander nor the Underwriters are soliciting an offer to buy the Notes in any jurisdiction where the offer or sale is not permitted or where the person making the offer or sale is not qualified to do so or from any person to whom it is not permitted to make such offer or sale. We refer you to the information under“Underwriting (Conflicts of Interest)”in this prospectus supplement. You should assume that the information contained in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference is accurate only as of their respective dates.

S-iii

ABOUT THIS PROSPECTUS SUPPLEMENT In this prospectus supplement, we use the following terms:

| • |     | “we,” “our” and “us” or “Banco Santander” means Banco Santander, S.A.; |

| • |     | “Group” means Banco Santander, S.A. and its consolidated subsidiaries; |

| • |     | “dollars” and “$” refer to the currency of the United States; |

| • |     | “euro” and “€” refer to the currency of the Member States of the European Union                                                 
 (“EU”) that have adopted the single currency in accordance with the treaty establishing the European Community, as amended; and |

| • |     | “SEC” refers to the U.S. Securities and Exchange Commission. |

This document is not a prospectus for the purposes of Regulation (EU) No. 2017/1129 of the European Parliament and of the Council of 14 June 2017 on the prospectus to be published when securities are offered to the public or admitted to trading on a regulated market, and repealing Directive 2003/71