Company: BCDRF
Filing Date: 2025-10-31
Form Type: 424B5
Source: 0001193125-25-260533
Chunk: 14

Company: Banco Santander, S.A.
Filing Date: 2025-10-31
Form: 424B5
Chunk 14
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 not a 
 Business Day (as defined herein).                                                                                                                                                                                                              |

| Business Day Convention | 2030 Floating Rate Notes: Modified Following, adjusted. |

| 2030 Fixed Rate Notes: Following, unadjusted. |

| 2035 Fixed Rate Notes: Following, unadjusted. |

| “Business Day” means any day, other than Saturday or Sunday, that is not a legal holiday nor a day on which banking institutions are authorized or required by law, regulation or executive order to close in 
 the City of New York or London nor a day when the T2 real-time gross settlement (RTGS) system, owned and operated by the Eurosystem, or any successor thereto, is closed for business.                        |

| Day Count Basis | 2030 Floating Rate Notes: Actual/360. |

| 2030 Fixed Rate Notes: 30/360. |

| 2035 Fixed Rate Notes: 30/360. |

| Ranking | The payment obligations of Banco Santander in respect of principal under the Notes constitute direct, unconditional, unsubordinated and |

S-3

| unsecured senior non preferred obligations (créditos ordinarios no preferentes) of Banco Santander and, in accordance with Additional Provision 14.2 of Law 11/2015, but subject to                                                                
 any other ranking that may apply as a result of any mandatory provision of law (or otherwise), upon the insolvency of Banco Santander, such payment obligations rank (i) pari passu among themselves and with any other Senior Non Preferred       
 Liabilities, (ii) junior to the Senior Higher Priority Liabilities (and, accordingly, upon the insolvency of Banco Santander, the payment obligations of Banco Santander in respect of principal under the Notes will be met after payment in full 
 of the Senior Higher Priority Liabilities) and (iii) senior to any present and future subordinated obligations (créditos subordinados) of Banco Santander in accordance with Article 281 of the Spanish Insolvency Law.                            |

| Claims of holders of the Notes in respect of interest accrued but unpaid as of the commencement of any insolvency procedure in respect of Banco Santander shall constitute subordinated claims (créditos                                   
 subordinados) against Banco Santander ranking in accordance with the provisions of Article 281.1.3º of the Spanish Insolvency Law, and no further interest shall accrue from the date of the declaration of insolvency of Banco Santander. |

| The obligations of Banco Santander