Company: BCDRF
Filing Date: 2025-10-31
Form Type: 424B5
Source: 0001193125-25-260533
Chunk: 36

Company: Banco Santander, S.A.
Filing Date: 2025-10-31
Form: 424B5
Chunk 36
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 general terms of the debt securities we may issue contained in the accompanying prospectus under the heading “Description of Debt Securities.” If there is any inconsistency between the following summary and the description in the accompanying prospectus, the following summary governs.

Certain Defined Terms

The following terms have the following meanings:

“Amounts Due” are the principal amount of, premium, if any, together with any accrued but unpaid interest, and Additional
Amounts, if any, due on the Notes. References to such amounts will include amounts that have become due and payable, but which have not been paid, prior to the exercise of the Bail-in Power by the Relevant
Resolution Authority.

“Applicable Banking Regulations” means at any time the laws, regulations, requirements,
guidelines and policies relating to capital adequacy, resolution and/or solvency including, among others, those giving effect to the MREL and the TLAC or any equivalent or successor principles, then applicable to Banco Santander and/or the Group
including, without limitation to the generality of the foregoing, the CRD, the BRRD, the SRM Regulation and those regulations, requirements, guidelines and policies relating to capital adequacy, resolution and/or solvency of the Regulator then
applicable to Banco Santander and/or the Group including, among others, those giving effect to the MREL and the TLAC or any equivalent or successor principles, in each case to the extent then in effect in the Kingdom of Spain (whether or not such
regulations, requirements, guidelines or policies have the force of law and whether or not they are applied generally or specifically to Banco Santander and/or the Group).

“Bail-inPower” means any power existing from time to time under, and exercised in
compliance with, any laws, regulations, rules or requirements in effect in the Kingdom of Spain, relating to (i) the transposition of the BRRD, including its article 48 and, when applicable, its article 59 (therefore, the write-down capital
conversion power at the point of non-viability) (including but not limited to, Law 11/2015, RD 1012/2015 and any other implementing regulations), (ii) the SRM Regulation and (iii) the instruments, rules
or standards created thereunder, pursuant to which any obligation of a Regulated Entity (or an affiliate of such Regulated Entity) can be reduced, cancelled, suspended, modified, or converted into shares, other securities