Banco Santander Files October 2025 6-K Report

Ticker: BCDRF · Form: 6-K · Filed: Oct 23, 2025 · CIK: 891478

Banco Santander, S.A. 6-K Filing Summary
FieldDetail
CompanyBanco Santander, S.A. (BCDRF)
Form Type6-K
Filed DateOct 23, 2025
Risk Levellow
Pages2
Reading Time2 min
Sentimentneutral

Sentiment: neutral

Topics: foreign-issuer, disclosure, regulatory-filing

TL;DR

Santander dropped a 6-K for October, standard foreign issuer update.

AI Summary

Banco Santander, S.A. filed a Form 6-K on October 23, 2025, reporting other relevant information. The filing is for the month of October 2025 and is made pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934. The company is based in Madrid, Spain, and its principal executive office is located at Ciudad Grupo Santander, 28660 Boadilla del Monte.

Why It Matters

This filing provides an update on Banco Santander's activities and is a routine disclosure for foreign issuers, informing investors about significant events or information.

Risk Assessment

Risk Level: low — This is a routine filing for a foreign issuer and does not appear to contain any new or material financial information that would significantly alter risk.

Key Players & Entities

  • Banco Santander, S.A. (company) — Registrant
  • October 23, 2025 (date) — Filing Date
  • 28660 Boadilla del Monte (Madrid) Spain (location) — Principal Executive Office Address

FAQ

What is the purpose of a Form 6-K filing?

A Form 6-K filing is a report of foreign issuer pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934, used to provide information that the issuer would be required to make public in its home country or that it has made or will make public elsewhere.

What is the filing date of this specific 6-K report?

The filing date of this 6-K report is October 23, 2025.

What is the exact name of the registrant as specified in its charter?

The exact name of the registrant is Banco Santander, S.A.

Where is Banco Santander, S.A.'s principal executive office located?

Banco Santander, S.A.'s principal executive office is located at Ciudad Grupo Santander, 28660 Boadilla del Monte (Madrid), Spain.

Which section of the Securities Exchange Act does this filing comply with?

This filing complies with Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934.

Filing Stats: 574 words · 2 min read · ~2 pages · Grade level 8.4 · Accepted 2025-10-23 06:11:01

Filing Documents

From the Filing

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 October, 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-F Banco Santander, S.A. TABLE OF CONTENTS Item 1 Report of Other Relevant Information dated October 23, 2025 Item 1 Banco Santander, S.A. (the “ Bank ” or “ Banco Santander ”), in compliance with the Securities Market legislation, hereby communicates the following: OTHER RELEVANT INFORMATION Reference is made to our notice of inside information of 30 July 2025 (official registry number 2844) (the “ Buyback Commencement Communication ”), relating to the buyback programme of own shares (the “ Buyback Programme ”) approved by the Board of Directors of Banco Santander. Pursuant to article 5 of Regulation (EU) no. 596/2014 on Market Abuse of 16 April 2014, and articles 2.2 and 2.3 of Commission Delegated Regulation (EU) 2016/1052, of 8 March 2016, the Bank informs of the transactions carried out over its own shares between 16 and 22 October 2025 (both inclusive). The cash amount of the shares purchased to 22 October 2025 as a result of the execution of the Buyback Programme amounts to 833,281,564 Euros, which represents approximately 49% of the maximum investment amount of the Buyback Programme. The programme was announced together with its other characteristics through the Buyback Commencement Communication. With these purchases, the Bank has repurchased approximately 14.7% of its outstanding shares as of 2021. Date Security Transaction Trading venue Number of shares Weighted average price (€) 16/10/ 2025 SAN Purchase XMAD 2,037,922 8.4773 16/10/ 2025 SAN Purchase CEUX 96,549 8.4738 16/10/ 2025 SAN Purchase TQEX 32,073 8.4772 16/10/ 2025 SAN Purchase AQEU 33,456 8.4789 17/10/ 2025 SAN Purchase XMAD 4,284,802 8.2440 17/10/ 2025 SAN Purchase CEUX 979,022 8.2119 17/10/ 2025 SAN Purchase TQEX 315,560 8.2232 17/10/ 2025 SAN Purchase AQEU 420,616 8.2160 20/10/ 2025 SAN Purchase XMAD 2,348,709 8.4407 20/10/ 2025 SAN Purchase CEUX 73,976 8.4293 20/10/ 2025 SAN Purchase TQEX 38,213 8.4263 20/10/ 2025 SAN Purchase AQEU 39,102 8.4299 21/10/ 2025 SAN Purchase XMAD 2,233,339 8.4417 21/10/ 2025 SAN Purchase CEUX 207,930 8.4296 21/10/ 2025 SAN Purchase TQEX 83,419 8.4085 21/10/ 2025 SAN Purchase AQEU 75,312 8.4312 22/10/ 2025 SAN Purchase XMAD 2,616,858 8.4015 22/10/ 2025 SAN Purchase CEUX 103,291 8.4071 22/10/ 2025 SAN Purchase TQEX 37,035 8.4215 22/10/ 2025 SAN Purchase AQEU 42,816 8.4175 TOTAL 16,100,000 Issuer name : Banco Santander, S.A. - LEI 5493006QMFDDMYWIAM13 Reference of the financial instrument : ordinary shares - Code ISIN ES0113900J37 Detailed information of the transactions carried out within the referred period is attached as Annex I. Boadilla del Monte (Madrid), 23 October 2025 ANNEX I Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 16/10/2025 and 22/10/2025 (both inclusive) (https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-16-a-22-10-2025.pdf) 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. Banco Santander, S.A. Date: October 23, 2025 By: /s/ Pedro de Mingo Kaminouchi Name: Pedro de Mingo Kaminouchi Title: Head of Corporate Compliance

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