Banco Santander Files Routine 6-K; No New Material Info

TL;DR

**Just a routine filing, nothing new to see here for Santander.**

AI Summary

This 6-K filing from Banco Santander, S.A. on March 26, 2026, is a routine report from a foreign issuer, indicating no new material financial events or changes. It primarily serves to update the public record with basic company information like its mailing address in Madrid, Spain, and its CIK number 0000891478. For investors, this filing is a non-event, meaning there's no immediate impact on the stock price or investment thesis, as it contains no new financial data or strategic announcements.

Why It Matters

This filing is a standard procedural update for foreign companies listed in the U.S. and does not contain any new financial or operational information that would impact an investor's decision.

Risk Assessment

Risk Level: low — This filing is purely administrative and does not introduce any new financial or operational risks.

Analyst Insight

A smart investor would recognize this as a non-event and continue to focus on Banco Santander's core financial performance and broader market trends rather than this administrative filing.

Key Numbers

• 2026-03-26 — Filing Date (the date the 6-K report was filed)
• 001-12518 — File No. (the SEC file number for Banco Santander, S.A.)

Key Players & Entities

• Banco Santander, S.A. (company) — the filer of the 6-K report
• 0000891478 (company) — the CIK number for Banco Santander, S.A.
• Madrid (location) — location of Banco Santander's business address

Forward-Looking Statements

• Banco Santander's stock price will remain unaffected by this specific filing. (Banco Santander, S.A.) — high confidence, target: 2026-03-27

FAQ

Filing Documents

• dp244204_6k.htm (6-K) — 37KB
• image_001.jpg (GRAPHIC) — 3KB
• 0000950103-26-004666.txt ( ) — 42KB

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 March, 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 Item 1 Report of Other Relevant Information dated March 26, 2026 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 4 February 2026 (official registry number 3077) (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 19 and 25 March (both inclusive). The cash amount of the shares purchased to 25 March 2026 as a result of the execution of the Buyback Programme amounts to 2,404,144,244 Euros, which represents approximately 47.8% 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 16.6% of its outstanding shares as of 2021. Date Security Transaction Trading venue Number of shares Weighted average price (€) 19/03/2026 SAN Purchase XMAD 7,804,948 9.3588 19/03/2026 SAN Purchase CEUX 2,405,880 9.3519 19/03/2026 SAN Purchase TQEX 417,223 9.3520 19/03/2026 SAN Purchase AQEU 337,374 9.3554 20/03/2026 SAN Purchase XMAD 5,000,000 9.4130 20/03/2026 SAN Purchase CEUX 1,500,000 9.4153 20/03/2026 SAN Purchase TQEX 250,000 9.4219 20/03/2026 SAN Purchase AQEU 250,000 9.4112 23/03/2026 SAN Purchase XMAD 2,153,538 9.0123 23/03/2026 SAN Purchase CEUX 533,434 9.0110 23/03/2026 SAN Purchase TQEX 82,932 9.0112 23/03/2026 SAN Purchase AQEU 86,308 9.0132 24/03/2026 SAN Purchase XMAD 3,718,334 9.4397 25/03/2026 SAN Purchase XMAD 3,498,390 9.7057 TOTAL 28,038,361 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), 26 March 2026 ANNEX I Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 19/03/2026 and 25/03/2026 (both inclusive) (https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-19-a-25-marzo-2026-es.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: March 26, 2026 By: /s/ Pedro de Mingo Kaminouchi Name: Pedro de Mingo Kaminouchi Title: Head of Corporate Compliance

View Full Filing

View this 6-K filing on SEC EDGAR