How much has Banco Santander (SAN) spent on its share buyback to date?

Banco Santander (SAN) has invested €4,053,401,441 in its share buyback as of 22 July 2026. This represents approximately 80.6% of the maximum investment amount set for the Buyback Programme.

Banco Santander updates €4,053,401,441 share buyback

Q: What type of securities is Banco Santander (SAN) buying back?

Banco Santander (SAN) is repurchasing its own ordinary shares under the Buyback Programme. The shares are identified as ordinary shares with ISIN code ES0113900J37, traded under the ticker SAN.

Banco Santander, S.A. provides an update on its share buyback programme of own shares.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

6-K

Rhea-AI Filing Summary

Banco Santander, S.A. provides an update on its share buyback programme of own shares. Between 16 and 22 July 2026 it repurchased a total of 13,000,000 ordinary shares on Spanish and European trading venues, including purchases on XMAD and CEUX at specified weighted average prices.

As of 22 July 2026, the cash amount invested in the buyback reached €4,053,401,441, representing approximately 80.6% of the programme’s maximum investment amount. Cumulatively, the bank has repurchased approximately 17.5% of its outstanding shares as of 2021 under this programme.

Positive

Banco Santander has repurchased approximately 17.5% of its outstanding shares as of 2021, deploying €4,053,401,441 under its share buyback programme.

Negative

None.

Key Figures

Buyback cash invested: €4,053,401,441 Buyback utilisation: 80.6% Shares repurchased vs 2021 outstanding: 17.5% +2 more

5 metrics

Buyback cash invested €4,053,401,441 Cash amount of shares purchased under the Buyback Programme as of 22 July 2026

Buyback utilisation 80.6% Proportion of the maximum investment amount of the Buyback Programme used as of 22 July 2026

Shares repurchased vs 2021 outstanding 17.5% Approximate proportion of outstanding shares as of 2021 repurchased under the Buyback Programme

Shares repurchased in period 13,000,000 shares Total shares bought between 16 and 22 July 2026

Weighted average price 16/07/2026 €11.9071 Weighted average purchase price for 3,000,000 shares on XMAD on 16 July 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

"Reference is made to 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"

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.

FAQ

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

What is Banco Santander (SAN) reporting in its July 2026 update?

Banco Santander (SAN) reports progress on its share buyback programme. Between 16 and 22 July 2026, it repurchased 13,000,000 ordinary shares and has invested €4,053,401,441 in total under the programme so far.

What proportion of Banco Santander (SAN) shares has been repurchased?

Under the Buyback Programme, Banco Santander (SAN) has repurchased approximately 17.5% of its outstanding shares as of 2021. This cumulative reduction follows ongoing purchases, including the most recent 13,000,000 shares bought in July 2026.

How many shares did Banco Santander (SAN) buy between 16 and 22 July 2026?

Between 16 and 22 July 2026, Banco Santander (SAN) repurchased 13,000,000 ordinary shares. These purchases were executed on XMAD and CEUX trading venues at disclosed weighted average prices in euros.

What type of securities is Banco Santander (SAN) buying back?

Banco Santander (SAN) is repurchasing its own ordinary shares under the Buyback Programme. The shares are identified as ordinary shares with ISIN code ES0113900J37, traded under the ticker SAN.

On which trading venues did Banco Santander (SAN) execute recent buybacks?

Banco Santander (SAN) executed recent buyback transactions on the Spanish exchange XMAD and the European venue CEUX. Across these venues, it purchased a total of 13,000,000 shares between 16 and 22 July 2026.

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

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Available on EDGAR 07/23/2026 - 06:35 AM Accepted by SEC EDGAR 07/23/2026 - 06:35 AM

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 July, 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

Form 40-F

Banco Santander, S.A.

TABLE OF CONTENTS

Item

1	Report of Other Relevant Information dated July 23, 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 16 and 22 July (both inclusive).

The cash amount of the shares purchased to 22 July 2026 as a result of the execution of the Buyback Programme amounts to 4,053,401,441 Euros, which represents approximately 80.6% 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 17.5% of its outstanding shares as of 2021.

Date	Security	Transaction	Trading venue	Number of shares	Weighted average price (€)
16/07/2026	SAN	Purchase	XMAD	3,000,000	11.9071
17/07/2026	SAN	Purchase	XMAD	2,000,000	11.7786
17/07/2026	SAN	Purchase	CEUX	1,000,000	11.7789
20/07/2026	SAN	Purchase	XMAD	2,000,000	11.7882
20/07/2026	SAN	Purchase	CEUX	1,000,000	11.7868
21/07/2026	SAN	Purchase	XMAD	2,000,000	11.8508
22/07/2026	SAN	Purchase	XMAD	1,000,000	12.1261
22/07/2026	SAN	Purchase	CEUX	1,000,000	12.1260
			TOTAL	13,000,000

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 July 2026

ANNEX I

Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 16/07/2026 and 22/07/2026 (both inclusive)

(https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-16-a-22-julio-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:	July 23, 2026	By:	/s/ Pedro de Mingo Kaminouchi
			Name:	Pedro de Mingo Kaminouchi
			Title:	Head of Corporate Compliance

Source: View Original Filing on SEC EDGAR