Banco Santander updates share buyback progress

Banco Santander, S.A. reports progress on its ongoing share buyback programme, disclosing purchases of its own ordinary shares between 26 March and 7 April 2026.

Rhea-AI Filing Summary

Banco Santander, S.A. reports progress on its ongoing share buyback programme, disclosing purchases of its own ordinary shares between 26 March and 7 April 2026. The bank states that the cash amount invested in shares to 7 April 2026 totals 2,705,434,576 Euros, representing approximately 53.8% of the maximum investment amount of the Buyback Programme approved by the Board of Directors.

Including these transactions, Banco Santander has repurchased approximately 16.8% of its outstanding shares as of 2021. Over the reported period, the bank bought 31,955,792 shares across several European trading venues at weighted average prices around 9.4 Euros per share, as detailed in Annex I.

Insights

Equity capital markets analyst

Santander advances a large buyback, now over half complete by value.

Banco Santander reports that its share buyback programme has reached 2,705,434,576 Euros in cumulative purchases, equivalent to about 53.8% of the programme’s maximum investment amount. This confirms steady execution of a previously announced capital return rather than a new initiative.

The bank also notes it has repurchased about 16.8% of its outstanding shares as of 2021, indicating sizeable cumulative reduction in share count over time. The filing lists 31,955,792 shares repurchased between 26 March and 7 April 2026 at weighted average prices near 9.4 Euros, with detailed trade data provided in an annex.

Key Figures

Buyback cash invested: 2,705,434,576 Euros Programme completion by value: 53.8% Cumulative shares repurchased: 16.8% of outstanding shares +3 more

6 metrics

Buyback cash invested 2,705,434,576 Euros Cumulative amount spent on Buyback Programme to 7 April 2026

Programme completion by value 53.8% Share of maximum investment amount already used in buyback

Cumulative shares repurchased 16.8% of outstanding shares Portion of outstanding shares as of 2021 repurchased via buybacks

Shares bought in period 31,955,792 shares Repurchases between 26 March and 7 April 2026

Weighted average price 27/03 XMAD 9.4211 Euros per share Banco Santander purchases on XMAD on 27 March 2026

Weighted average price 30/03 XMAD 9.4200 Euros per share Banco Santander purchases on XMAD on 30 March 2026

Key Terms

Buyback Programme, inside information, Regulation (EU) no. 596/2014 on Market Abuse, Commission Delegated Regulation (EU) 2016/1052, +1 more

5 terms

Buyback Programme financial

"relating to the buyback programme of own shares (the “Buyback Programme”)"

inside information regulatory

"our notice of inside information of 4 February 2026"

Information not available to the public that, if known, would likely cause a company’s stock or bonds to rise or fall—for example, undisclosed earnings, deals, product results, or management plans. It matters because trading on that information gives an unfair advantage, can distort market prices, and is typically illegal or subject to strict rules, so investors watch for proper disclosure and compliance to protect fair, transparent markets.

Regulation (EU) no. 596/2014 on Market Abuse regulatory

"Pursuant to article 5 of Regulation (EU) no. 596/2014 on Market Abuse"

Commission Delegated Regulation (EU) 2016/1052 regulatory

"and articles 2.2 and 2.3 of Commission Delegated Regulation (EU) 2016/1052"

own shares financial

"transactions carried out over its own shares between 26 March and 7 April"

Shares a company owns in itself are pieces of its stock that it has bought back or is holding in a treasury account instead of being owned by outside investors. For investors this matters because those held shares reduce the number of shares available on the market and can change per-share metrics and voting power—like a shop removing some items from the shelf, which alters the supply and how value is divided among remaining owners.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How much has Banco Santander spent so far on its current share buyback programme?

Banco Santander has invested 2,705,434,576 Euros in its share buyback programme up to 7 April 2026. This cumulative cash amount corresponds to approximately 53.8% of the initiative’s maximum investment limit, showing the programme is more than halfway executed by value.

What portion of Banco Santander’s buyback programme is completed according to the April 2026 update?

The bank reports that purchases to 7 April 2026 represent about 53.8% of the buyback programme’s maximum investment amount. This indicates that nearly half of the authorised capacity remains available for further repurchases, subject to the programme’s existing terms and conditions.

How many Banco Santander shares were repurchased between 26 March and 7 April 2026?

Banco Santander repurchased a total of 31,955,792 shares between 26 March and 7 April 2026. These trades were executed across several trading venues, including XMAD, CEUX, TQEX and AQEU, at weighted average prices generally around 9.4 Euros per share over the period.

What cumulative impact has Banco Santander’s buyback had on its share base since 2021?

The bank states that, with these latest purchases, it has repurchased approximately 16.8% of its outstanding shares as of 2021. This figure reflects the cumulative effect of the buyback activity on reducing the share count relative to the 2021 outstanding level.

Where can investors find detailed trade-level data on Banco Santander’s recent buyback transactions?

Detailed information on each transaction executed between 26 March and 7 April 2026 is provided in Annex I. The annex, referenced in the report, itemises individual trades under the Buyback Programme, including dates, venues, number of shares and corresponding prices.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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

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Accepted by SEC EDGAR 04/08/2026 - 06:16 AM Learn about SEC filing dates

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 April, 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 April 8, 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 26 March and 7 April (both inclusive).

The cash amount of the shares purchased to 7 April 2026 as a result of the execution of the Buyback Programme amounts to 2,705,434,576 Euros, which represents approximately 53.8% 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 16.8% of its outstanding shares as of 2021.

Date	Security	Transaction	Trading venue	Number of shares	Weighted average price (€)
26/03/2026	SAN	Purchase	XMAD	2,599,598	9.5176
27/03/2026	SAN	Purchase	XMAD	10,925,000	9.4211
27/03/2026	SAN	Purchase	CEUX	3,203,952	9.4202
27/03/2026	SAN	Purchase	TQEX	504,000	9.4156
27/03/2026	SAN	Purchase	AQEU	861,000	9.4157
30/03/2026	SAN	Purchase	XMAD	10,382,683	9.4200
30/03/2026	SAN	Purchase	CEUX	2,175,268	9.4213
30/03/2026	SAN	Purchase	TQEX	497,000	9.4214
30/03/2026	SAN	Purchase	AQEU	803,401	9.4233
31/03/2026	SAN	Purchase	XMAD	1,000	9.5306
01/04/2026	SAN	Purchase	XMAD	1,000	9.9471
02/04/2026	SAN	Purchase	XMAD	890	9.7053
07/04/2026	SAN	Purchase	XMAD	1,000	9.8371
			TOTAL	31,955,792

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), 8 April 2026

 

ANNEX I

Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 26/03/2026 and 07/04/2026 (both inclusive)

(https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-26-marzo-a-07-abril-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:	April 8, 2026		By:	/s/ Pedro de Mingo Kaminouchi
				Name:	Pedro de Mingo Kaminouchi
				Title:	Head of Corporate Compliance