Company: BCDRF
Filing Date: 2025-01-08
Form Type: 424B5
Source: 0001193125-25-003514
Chunk: 242

Company: Banco Santander, S.A.
Filing Date: 2025-01-08
Form: 424B5
Chunk 242
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 with any other provision of the contingent convertible capital securities indenture or in any supplemental indenture; |

| • |     | to evidence and provide for the acceptance of appointment under the contingent convertible capital securities                                                                                                                                          
 indenture by a successor Trustee with respect to the contingent convertible capital securities of one or more series and to add to or change any of the provisions of the contingent convertible capital securities indenture as shall be necessary to 
 provide for or facilitate the administration of the trusts under the contingent convertible capital securities indenture by more than one Trustee, pursuant to the requirements of the contingent convertible capital securities indenture;            |

| • |     | to change or eliminate any provision of the contingent convertible capital securities indenture so as to conform 
 with the current provisions or any future provisions of the Trust Indenture Act;                                 |

| • |     | with respect to any contingent convertible capital security (including a global security), to amend any such                                                                                                                                      
 contingent convertible capital security to conform to the description of the terms of such contingent convertible capital security in the prospectus, prospectus supplement, product supplement, pricing supplement or any other similar offering 
 document related to the offering of such contingent convertible capital security; and                                                                                                                                                             |

| • |     | to change or modify any provision of the contingent convertible capital securities indenture as necessary to                                              
 ensure that the contingent convertible capital securities of any series shall be convertible into ordinary shares of Newco in the event of a Newco Scheme |

Other modifications and amendments may be made to the contingent convertible capital securities indenture and any applicable supplemental indenture with the consent of not less than a majority in aggregate outstanding Liquidation Preference of the contingent convertible capital securities of the series outstanding under the contingent convertible capital securities indenture and any applicable supplemental indenture that are affected by 111

the modification or amendment, voting as one class. However, no modifications or amendments may be made without the consent of the holder of each contingent convertible capital security affected that would:

| • |     | change the terms of any contingent convertible capital security as set forth in the contingent convertible 
 capital securities indenture;                                                                              |

| • |     | reduce the Liquidation Preference of, the Distribution rates of, or the payments with respect to any contingent                                                
 convertible capital security, other than as permitted under the contingent convertible capital securities indenture and any applicable supplemental indenture; |

| • |     | change Banco Santander’s (or any successor’s) obligation to pay Additional Amounts; |

| • |     | change the currency of