# EDGAR Filing Document

**Accession Number:** 0000891478
**File Stem:** 0000950103-25-007199
**Filing Date:** 2025-6
**Character Count:** 4074
**Document Hash:** 83c3da9f574b4948d9f70480005ddc00
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950103-25-007199.hdr.sgml**: 20250610

**ACCESSION NUMBER**: 0000950103-25-007199

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250610

**FILED AS OF DATE**: 20250610

**DATE AS OF CHANGE**: 20250610

**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:** 251036329

**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 June, 2025

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-

**Banco Santander, S.A.**

**TABLE OF CONTENTS**

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| **Item** |  |
| 1 | Report of Other Relevant Information dated June 10, 2025 |

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**Item 1**

![](image_001.jpg)

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

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

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| |
|:---|
| Further to the notice of other relevant information registered with the Spanish National Securities Market Commission (*Comisión Nacional del Mercado de Valores*) on 3 June 2025 (registry number 35106), it is communicated that on 6 June 2025 the public deed of capital reduction (and consequent Bylaw amendment) for the amount of EUR 133,583,475, through the cancellation of 267,166,950 own shares, representing approximately 1.76% of the Bank's share capital, was registered with the Commercial Registry of Santander.<br>Consequently, the Bank's share capital has been set at EUR 7,442,662,686, represented by 14,885,325,372 shares with a nominal value of EUR 0.50 each. All of the shares belong to the same class and have the same rights.<br>It is stated for the record that, once the eight buyback programmes carried out against results since 2021 have been completed, the accumulated share capital reduction amounts to EUR 1,227,657,965, with the Bank having repurchased 2,455,315,930 shares since November 2021, approximately 14.16 % of its outstanding shares as of that date. |
| Boadilla del Monte (Madrid), 10 June 2025 |

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**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: | June 10, 2025 | 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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