Banco Santander (SAN) buyback tops €3.53B, reaches 70.2% of programme limit

Rhea-AI Filing Summary

Banco Santander reports progress on its share buyback programme. As of 24 June 2026, the cash amount invested in repurchasing its own shares totals 3,531,794,091 Euros, representing about 70.2% of the programme’s maximum investment. The bank states that, with these purchases, it has repurchased approximately 17.3% of its outstanding shares as of 2021. Between 18 and 24 June 2026, it bought 13,007,737 shares on the XMAD market at weighted average prices around €11.9 per share under the Buyback Programme.

Insights

Equity capital management analyst

Santander continues executing a large, previously announced share buyback, reducing share count over time.

Banco Santander details ongoing execution of its approved Buyback Programme under EU market abuse rules. As of 24 June 2026 it has spent 3,531,794,091 Euros, which the bank reports is about 70.2% of the programme’s maximum investment amount.

The bank also notes that these purchases correspond to roughly 17.3% of its outstanding shares as of 2021, indicating a sizable cumulative reduction in share count. In the 18–24 June window alone, it repurchased 13,007,737 shares on XMAD at weighted average prices near €11.9.

This update confirms that the buyback is advancing in line with the previously communicated plan, with remaining capacity implied by the 70.2% utilisation figure. Subsequent company communications may provide the final completion amounts and any resulting changes in capital metrics once the Buyback Programme ends.

Key Figures

Buyback cash amount: 3,531,794,091 Euros Programme utilisation: 70.2% Shares repurchased vs 2021: 17.3% +3 more

6 metrics

Buyback cash amount 3,531,794,091 Euros Cash spent on Buyback Programme as of 24 June 2026

Programme utilisation 70.2% Portion of maximum investment amount used in Buyback Programme

Shares repurchased vs 2021 17.3% Fraction of outstanding shares as of 2021 repurchased

Shares bought 18–24 June 2026 13,007,737 shares Total shares repurchased in the reported week on XMAD

Weighted avg price 18/06/2026 €11.8792 per share Repurchases of 1,000,000 shares on 18 June 2026

Weighted avg price 19/06/2026 €11.9306 per share Repurchases of 4,000,000 shares on 19 June 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

"notice of inside information of 4 February 2026 (official registry number 3077)"

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 of 16 April 2014"

Commission Delegated Regulation (EU) 2016/1052 regulatory

"and articles 2.2 and 2.3 of Commission Delegated Regulation (EU) 2016/1052, of 8 March 2016"

weighted average price financial

"Number of shares | Weighted average price (€)"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

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

Available on EDGAR 06/25/2026 - 06:38 AM Accepted by SEC EDGAR 06/25/2026 - 06:37 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 June, 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 June 25, 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 18 and 24 June (both inclusive).

The cash amount of the shares purchased to 24 June 2026 as a result of the execution of the Buyback Programme amounts to 3,531,794,091 Euros, which represents approximately 70.2% 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 17.3% of its outstanding shares as of 2021.

Date	Security	Transaction	Trading venue	Number of shares	Weighted average price (€)
18/06/2026	SAN	Purchase	XMAD	1,000,000	11.8792
19/06/2026	SAN	Purchase	XMAD	4,000,000	11.9306
22/06/2026	SAN	Purchase	XMAD	3,912,305	11.9552
23/06/2026	SAN	Purchase	XMAD	3,095,432	11.9281
24/06/2026	SAN	Purchase	XMAD	1,000,000	11.9117
			TOTAL	13,007,737

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), 25 June 2026

 

ANNEX I

Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 18/06/2026 and 24/06/2026 (both inclusive)

(https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-18-a-24-junio-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:	June 25, 2026	By:	/s/ Pedro de Mingo Kaminouchi
			Name:	Pedro de Mingo Kaminouchi
			Title:	Head of Corporate Compliance

FAQ

How much has Banco Santander spent on its 2026 share buyback so far?

Banco Santander has spent 3,531,794,091 Euros on its share buyback as of 24 June 2026. This cash amount reflects shares repurchased under the approved Buyback Programme, representing a substantial portion of the authorised investment limit.

What portion of Banco Santander’s buyback programme is completed as of June 2026?

As of 24 June 2026, Banco Santander reports having used approximately 70.2% of the maximum investment amount of its Buyback Programme. This indicates significant progress, with some remaining capacity still available for further share repurchases under the existing authorisation.

How many Banco Santander shares were repurchased between 18 and 24 June 2026?

Between 18 and 24 June 2026, Banco Santander repurchased a total of 13,007,737 ordinary shares. These purchases were executed on the XMAD trading venue in several daily tranches as part of the ongoing Buyback Programme previously announced by the bank.

At what prices did Banco Santander buy back shares in late June 2026?

In the period from 18 to 24 June 2026, Banco Santander’s weighted average purchase prices ranged around €11.88 to €11.96 per share. Each trading day shows a specific weighted average price in euros, reflecting actual execution levels on the XMAD market.

What fraction of Banco Santander’s outstanding shares has the buyback retired?

Banco Santander states that, with the purchases to 24 June 2026, it has repurchased approximately 17.3% of its outstanding shares as of 2021. This figure highlights the cumulative scale of the Buyback Programme relative to the earlier share base.

On which market were Banco Santander’s June 2026 buyback trades executed?

The June 2026 buyback trades described were executed on the XMAD trading venue, corresponding to the Spanish market. All reported transactions in the table involve Banco Santander ordinary shares with ISIN ES0113900J37 purchased on XMAD under the Buyback Programme.