# EDGAR Filing Document

**Accession Number:** 0000891478
**File Stem:** 0000950103-26-007135
**Filing Date:** 2026-5
**Character Count:** 3736
**Document Hash:** cfec4395af190638b5b75f1c5bc59ca1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950103-26-007135.hdr.sgml**: 20260513

**ACCESSION NUMBER**: 0000950103-26-007135

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260513

**FILED AS OF DATE**: 20260513

**DATE AS OF CHANGE**: 20260513

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Banco Santander, S.A.
- **CENTRAL INDEX KEY:** 0000891478
- **STANDARD INDUSTRIAL CLASSIFICATION:** COMMERCIAL BANKS, NEC [6029]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 132617929
- **STATE OF INCORPORATION:** U3
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-12518
- **FILM NUMBER:** 26971488

**BUSINESS ADDRESS:**
- **STREET 1:** CIUDAD GRUPO SANTANDER
- **STREET 2:** BOADILLA DEL MONTE
- **CITY:** MADRID
- **STATE:** U3
- **ZIP:** 28660
- **BUSINESS PHONE:** 34 91 289 32 80

**MAIL ADDRESS:**
- **STREET 1:** CIUDAD GRUPO SANTANDER
- **STREET 2:** BOADILLA DEL MONTE
- **CITY:** MADRID
- **STATE:** U3
- **ZIP:** 28660

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BANCO SANTANDER SA
- **DATE OF NAME CHANGE:** 20070925

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BANCO SANTANDER CENTRAL HISPANO SA
- **DATE OF NAME CHANGE:** 19990512

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BANCO SANTANDER S A
- **DATE OF NAME CHANGE:** 19931201

**FORM 6-K**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**Report of Foreign Issuer**

**Pursuant to Rule 13a-16 or 15d-16 of**

**the Securities Exchange Act of 1934**

For the month of May, 2026

Commission File Number: 001-12518

**Banco Santander, S.A.**

*(Exact name of registrant as specified in its charter)*

**Ciudad Grupo Santander**

**28660 Boadilla del Monte (Madrid) Spain**

*(Address of principal executive office)*

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F X Form 40-F  

**Banco Santander, S.A.**

**TABLE OF CONTENTS**

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|:---|:---|
| **Item** |  |
| 1 | Report of Other Relevant Information dated May 13, 2026 |

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**Item 1**

![](image_001.jpg)

**Banco Santander, S.A. ("Santander" or the "Bank"), in compliance with the Securities Market legislation, hereby communicates the following:** 

**<u>OTHER RELEVANT INFORMATION</u>**

**As part of Fitch Ratings ("Fitch") methodology review, action has been taken on Santander's long-term rating, upgrading it from A to A+. Outlook is stable. Short-term rating is affirmed at F1.**

**The long-term rating of Santander subsidiaries, Banco Santander Totta, S.A. ("Santander Totta"), Santander Consumer Finance, S.A., Santander Consumer Bank AG and Santander Consumer Bank AS has also been upgraded from A to A+. Outlook is stable. Short-term rating is affirmed at F1.** 

Santander Totta's long and short-term deposits ratings have been upgraded from A+ to AA-, and from F1 to F1+.

Boadilla del Monte (Madrid),13 May 2026

**IMPORTANT INFORMATION**

**Not a securities offer** 

This document and the information it contains does not constitute an offer to sell nor the solicitation of an offer to buy any securities.

 

**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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| | | | | |
|:---|:---|:---|:---|:---|
| | | **Banco Santander, S.A.** | **Banco Santander, S.A.** | **Banco Santander, S.A.** |
| Date: | May 13, 2026 | By: | /s/ Pedro de Mingo Kaminouchi | /s/ Pedro de Mingo Kaminouchi |
|  |  |  | Name: | Pedro de Mingo Kaminouchi |
|  |  |  | Title: | Head of Corporate Compliance |

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