Banco Santander reports progress on share buyback
Banco Santander reports further progress on its share buyback programme, confirming that by 11 March 2026 it had purchased own shares for a cash amount of 1,944,246,623 Euros.
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Rhea-AI Filing Summary
Banco Santander reports further progress on its share buyback programme, confirming that by 11 March 2026 it had purchased own shares for a cash amount of 1,944,246,623 Euros. This represents approximately 38.7% of the maximum investment amount approved for the programme.
The bank states that, with these purchases, it has repurchased approximately 16.4% of its outstanding shares as of 2021. Between 5 and 11 March 2026, it bought 13,456,032 shares on venues including XMAD and CEUX at weighted average prices ranging from 9.3623 to 9.9682 Euros per share.
Insights
Update shows sizeable but pre-announced share buyback execution.
Banco Santander confirms ongoing execution of its approved share buyback, with purchases totalling 1,944,246,623 Euros, or about 38.7% of the programme’s maximum investment amount. The bank indicates this has reduced its share count by roughly 16.4% versus outstanding shares as of 2021.
This development mainly updates investors on pace and scale rather than changing the original programme’s terms. The detailed trading data for 13,456,032 shares between 5 and 11 March 2026, at prices around 9.36–9.97 Euros, offers transparency on execution without introducing new strategic directions.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What proportion of Banco Santander’s buyback programme is completed?
On which trading venues did Banco Santander execute its March 2026 buybacks?
AI-generated analysis. How Rhea-AI works. Not financial advice.
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 March, 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 March 12, 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 5 and 11 March (both inclusive).
The cash amount of the shares purchased to 11 March 2026 as a result of the execution of the Buyback Programme amounts to 1,944,246,623 Euros, which represents approximately 38.7% 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 16.4% of its outstanding shares as of 2021.
| Date | Security | Transaction | Trading venue | Number of shares | Weighted average price (€) |
| 05/03/2026 | SAN | Purchase | XMAD | 100,000 | 9.9171 |
| 06/03/2026 | SAN | Purchase | XMAD | 6,000,000 | 9.5804 |
| 06/03/2026 | SAN | Purchase | CEUX | 2,156,032 | 9.5667 |
| 09/03/2026 | SAN | Purchase | XMAD | 5,000,000 | 9.3623 |
| 10/03/2026 | SAN | Purchase | XMAD | 100,000 | 9.9682 |
| 11/03/2026 | SAN | Purchase | XMAD | 100,000 | 9.8807 |
| TOTAL | 13,456,032 |
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), 12 March 2026
1
ANNEX I
Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 05/03/2026 and 11/03/2026 (both inclusive)
(https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-05-a-11-marzo-2026-es.pdf)
2
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: | March 12, 2026 | By: | /s/ Pedro de Mingo Kaminouchi | ||
| Name: | Pedro de Mingo Kaminouchi | ||||
| Title: | Head of Corporate Compliance | ||||