How much has Banco Santander (SAN) spent so far on its share buyback?

Banco Santander has spent 3,899,027,041 Euros buying back its own shares. This cash amount reflects purchases executed under its Buyback Programme through 15 July 2026 and corresponds to about 77.5% of the programme’s maximum approved investment amount.

Banco Santander (NYSE: SAN) has repurchased about 17.4% of shares

Q: What portion of the Banco Santander (SAN) buyback programme is already completed?

Banco Santander indicates it has used approximately 77.5% of the Buyback Programme’s maximum investment amount. This percentage is based on cumulative own-share purchases totaling 3,899,027,041 Euros as of 15 July 2026 under the authorised repurchase plan.

Q: What percentage of Banco Santander (SAN) shares has been repurchased?

Banco Santander reports it has repurchased approximately 17.4% of its outstanding shares as of 2021. This figure reflects the cumulative impact of the Buyback Programme on the company’s share count relative to the 2021 outstanding shares baseline.

Q: How many Banco Santander (SAN) shares were bought between 9 and 15 July 2026?

Between 9 and 15 July 2026, Banco Santander repurchased 11,822,286 of its own shares. These transactions were executed on the XMAD and CEUX trading venues in several daily blocks, each with its own weighted average purchase price in Euros.

Q: On which venues were Banco Santander (SAN) buyback trades carried out in this period?

Banco Santander executed its buyback trades on XMAD (the Spanish market) and CEUX . Between 9 and 15 July 2026, all 11,822,286 repurchased shares were acquired on these venues, in line with the parameters of the authorised Buyback Programme.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

6-K

Rhea-AI Filing Summary

Banco Santander, S.A. reports progress on its share buyback programme. The cash amount used to purchase its own shares reached 3,899,027,041 Euros as of 15 July 2026, representing approximately 77.5% of the programme’s maximum investment amount.

The bank states that, with these purchases, it has repurchased about 17.4% of its outstanding shares as of 2021. Between 9 and 15 July 2026, it bought 11,822,286 shares on XMAD and CEUX through several daily transactions at weighted average prices including €12.1509 and €11.9540 per share.

Key Figures

Buyback cash amount: 3,899,027,041 Euros Buyback vs maximum investment: 77.5% Shares repurchased vs 2021 outstanding: 17.4% +3 more

6 metrics

Buyback cash amount 3,899,027,041 Euros Cash spent on own-share purchases as of 15 July 2026 under the Buyback Programme

Buyback vs maximum investment 77.5% Proportion of the Buyback Programme’s maximum investment amount already used

Shares repurchased vs 2021 outstanding 17.4% Approximate share of outstanding shares as of 2021 that have been repurchased

Shares bought 9–15 July 2026 11,822,286 shares Total own shares repurchased between 9 and 15 July 2026 on XMAD and CEUX

Shares purchased 09/07/2026 2,000,000 shares Own-share purchases on XMAD at weighted average price €12.0716

Weighted average price 10/07/2026 €12.1509 Price for 2,000,000 own shares repurchased on XMAD

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.

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

Available on EDGAR 07/16/2026 - 06:25 AM Accepted by SEC EDGAR 07/16/2026 - 06:25 AM

FAQ

What portion of the Banco Santander (SAN) buyback programme is already completed?

Banco Santander indicates it has used approximately 77.5% of the Buyback Programme’s maximum investment amount. This percentage is based on cumulative own-share purchases totaling 3,899,027,041 Euros as of 15 July 2026 under the authorised repurchase plan.

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

Banco Santander reports it has repurchased approximately 17.4% of its outstanding shares as of 2021. This figure reflects the cumulative impact of the Buyback Programme on the company’s share count relative to the 2021 outstanding shares baseline.

How many Banco Santander (SAN) shares were bought between 9 and 15 July 2026?

Between 9 and 15 July 2026, Banco Santander repurchased 11,822,286 of its own shares. These transactions were executed on the XMAD and CEUX trading venues in several daily blocks, each with its own weighted average purchase price in Euros.

At what prices did Banco Santander (SAN) repurchase shares in mid-July 2026?

During 9–15 July 2026, Banco Santander bought shares at daily weighted average prices including €12.1509 and €11.9540 per share. Individual trading days saw purchases of up to 2,000,000 shares on XMAD and 1,000,000 shares on CEUX.

On which venues were Banco Santander (SAN) buyback trades carried out in this period?

Banco Santander executed its buyback trades on XMAD (the Spanish market) and CEUX. Between 9 and 15 July 2026, all 11,822,286 repurchased shares were acquired on these venues, in line with the parameters of the authorised Buyback Programme.

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 16, 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 9 and 15 July (both inclusive).

The cash amount of the shares purchased to 15 July 2026 as a result of the execution of the Buyback Programme amounts to 3,899,027,041 Euros, which represents approximately 77.5% 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 17.4% of its outstanding shares as of 2021.

Date	Security	Transaction	Trading venue	Number of shares	Weighted average price (€)
09/07/2026	SAN	Purchase	XMAD	2,000,000	12.0716
10/07/2026	SAN	Purchase	XMAD	2,000,000	12.1509
13/07/2026	SAN	Purchase	XMAD	2,000,000	12.0934
14/07/2026	SAN	Purchase	XMAD	2,000,000	11.9562
14/07/2026	SAN	Purchase	CEUX	1,000,000	11.9550
15/07/2026	SAN	Purchase	XMAD	1,881,589	11.9550
15/07/2026	SAN	Purchase	CEUX	940,697	11.9540
			TOTAL	11,822,286

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), 16 July 2026

ANNEX I

Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 09/07/2026 and 15/07/2026 (both inclusive)

(https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-09-a-15-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 16, 2026	By:	/s/ Pedro de Mingo Kaminouchi
			Name:	Pedro de Mingo Kaminouchi
			Title:	Head of Corporate Compliance

Source: View Original Filing on SEC EDGAR