Banco Santander (SAN) sets May restart and August end for share buyback

Rhea-AI Filing Summary

Banco Santander, S.A. announced that its previously suspended share buyback programme will resume on 28 May 2026. The bank now expects the buyback programme to run until 21 August 2026, inclusive. This update follows an earlier notice about the temporary suspension issued on 23 April 2026.

Key Figures

Buyback resumption date: 28 May 2026 Buyback expected end date: 21 August 2026 Prior suspension notice date: 23 April 2026

3 metrics

Buyback resumption date 28 May 2026 Scheduled restart of share buyback programme

Buyback expected end date 21 August 2026 Indicative duration runs to this date, inclusive

Prior suspension notice date 23 April 2026 Date of earlier communication about temporary suspension

Key Terms

share buyback programme, other relevant information, Securities Market legislation, Securities Act of 1933

4 terms

share buyback programme financial

"regarding the temporary suspension of the share buyback programme (the “Buyback Programme”)"

A share buyback programme is when a company uses its cash to purchase its own shares from the market, reducing the number of shares available to other investors; imagine a bakery buying back coupons so fewer are circulating. It matters because cutting the share count can boost earnings per share and increase each remaining investor’s ownership stake, and it also signals management’s view of the stock while using cash that could have been spent on other priorities.

other relevant information regulatory

"hereby announces the following OTHER RELEVANT INFORMATION"

Securities Market legislation regulatory

"in compliance with the Securities Market legislation, hereby announces"

Securities Act of 1933 regulatory

"Section 10 of the Securities Act of 1933, as amended (the “Securities Act”)"

Form 6-K: How Foreign Companies Report to the SEC →

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

Item
1	Report of Other Relevant Information dated May 27, 2026

Item 1

 

Banco Santander, S.A. (“Banco Santander” or the “Bank”), in compliance with the Securities Market legislation, hereby announces the following:

OTHER RELEVANT INFORMATION

Further to the other relevant information notice dated 23 April 2026 (official registry number 40404) regarding the temporary suspension of the share buyback programme (the “Buyback Programme”), Banco Santander hereby announces that the resumption of the Buyback Programme will occur on 28 May 2026. Consequently, the indicative duration of the Buyback Programme is now expected to run to 21 August, inclusive.

Boadilla del Monte (Madrid), 27 May 2026

IMPORTANT INFORMATION

No offer or solicitation

This document does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended (the “Securities Act”). No investment activity should be undertaken on the basis of the information contained in this document. By making this document available, no advice or recommendation is being given to buy, sell or otherwise deal in any securities or investments whatsoever.

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:	May 27, 2026	By:	/s/ Pedro de Mingo Kaminouchi
			Name:	Pedro de Mingo Kaminouchi
			Title:	Head of Corporate Compliance

FAQ

What did Banco Santander (SAN) announce in the May 2026 6-K?

Banco Santander announced that its temporarily suspended share buyback programme will resume on 28 May 2026. The bank also indicated a new expected end date for the programme of 21 August 2026, inclusive, updating investors on the timetable.

When will Banco Santander (SAN) resume its share buyback programme?

Banco Santander plans to resume its share buyback programme on 28 May 2026. This follows a temporary suspension disclosed on 23 April 2026 and provides a clear restart date for the ongoing capital management initiative.

How long is Banco Santander’s (SAN) buyback programme now expected to run?

The share buyback programme is now expected to run until 21 August 2026, inclusive. This revised timetable replaces the prior indication given before the temporary suspension announced in April 2026, giving investors an updated schedule.

Why was Banco Santander’s (SAN) share buyback mentioned as ‘other relevant information’?

The update on the share buyback programme is classified as ‘other relevant information’ under securities market rules. This label signals that the timing change is considered important for market transparency, even though it does not alter the programme’s basic structure.

Does Banco Santander’s (SAN) May 2026 6-K offer or solicit any securities?

No. The document explicitly states it is not an offer to sell or solicit an offer to buy securities. It clarifies that any securities offering would only be made through a prospectus meeting Securities Act Section 10 requirements.