Banco Santander, S.A. Current Report (Foreign Issuer)
Banco Santander reported progress on its share repurchase programme, detailing purchases executed between 16 and 22 October 2025.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Rhea-AI Filing Summary
Banco Santander reported progress on its share repurchase programme, detailing purchases executed between 16 and 22 October 2025. Over this period, the bank bought 16,100,000 shares across European trading venues at disclosed weighted average prices.
Cumulatively, the cash amount spent on the buyback reached €833,281,564, representing approximately 49% of the programme’s maximum investment amount as communicated previously. The bank also noted that, with these purchases, it has repurchased approximately 14.7% of its outstanding shares as of 2021. A transaction-by-transaction breakdown for the week is provided in an annex.
Insights
Buyback is halfway funded by cash; routine, disclosure-driven update.
Banco Santander disclosed weekly buyback activity for 16–22 Oct 2025, recording purchases of 16,100,000 shares across multiple venues. The cumulative cash outlay reached €833,281,564, labeled as ~49% of the programme’s maximum investment amount.
This is an execution update under market abuse regulations and does not change previously stated programme parameters. The bank also states it has repurchased ~14.7% of outstanding shares as of 2021, which serves as historical context.
Future impacts will depend on continued execution under the authorised cap and any subsequent disclosures in company communications.
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 October, 2025
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 October 23, 2025 |
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 30 July 2025 (official registry number 2844) (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 October 2025 (both inclusive).
The cash amount of the shares purchased to 22 October 2025 as a result of the execution of the Buyback Programme amounts to 833,281,564 Euros, which represents approximately 49% 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 14.7% of its outstanding shares as of 2021.
| Date | Security | Transaction | Trading venue | Number of shares | Weighted average price (€) |
| 16/10/2025 | SAN | Purchase | XMAD | 2,037,922 | 8.4773 |
| 16/10/2025 | SAN | Purchase | CEUX | 96,549 | 8.4738 |
| 16/10/2025 | SAN | Purchase | TQEX | 32,073 | 8.4772 |
| 16/10/2025 | SAN | Purchase | AQEU | 33,456 | 8.4789 |
| 17/10/2025 | SAN | Purchase | XMAD | 4,284,802 | 8.2440 |
| 17/10/2025 | SAN | Purchase | CEUX | 979,022 | 8.2119 |
| 17/10/2025 | SAN | Purchase | TQEX | 315,560 | 8.2232 |
| 17/10/2025 | SAN | Purchase | AQEU | 420,616 | 8.2160 |
| 20/10/2025 | SAN | Purchase | XMAD | 2,348,709 | 8.4407 |
| 20/10/2025 | SAN | Purchase | CEUX | 73,976 | 8.4293 |
| 20/10/2025 | SAN | Purchase | TQEX | 38,213 | 8.4263 |
| 20/10/2025 | SAN | Purchase | AQEU | 39,102 | 8.4299 |
| 21/10/2025 | SAN | Purchase | XMAD | 2,233,339 | 8.4417 |
| 21/10/2025 | SAN | Purchase | CEUX | 207,930 | 8.4296 |
| 21/10/2025 | SAN | Purchase | TQEX | 83,419 | 8.4085 |
| 21/10/2025 | SAN | Purchase | AQEU | 75,312 | 8.4312 |
| 22/10/2025 | SAN | Purchase | XMAD | 2,616,858 | 8.4015 |
| 22/10/2025 | SAN | Purchase | CEUX | 103,291 | 8.4071 |
| 22/10/2025 | SAN | Purchase | TQEX | 37,035 | 8.4215 |
| 22/10/2025 | SAN | Purchase | AQEU | 42,816 | 8.4175 |
| TOTAL | 16,100,000 |
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 October 2025
ANNEX I
Detailed information on each of the transactions carried out within the context of the Buy-back Programme between 16/10/2025 and 22/10/2025 (both inclusive)
(https://www.santander.com/content/dam/santander-com/es/documentos/cumplimiento/do-anexo-i-16-a-22-10-2025.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: | October 23, 2025 | By: | /s/ Pedro de Mingo Kaminouchi | |
| Name: | Pedro de Mingo Kaminouchi | |||
| Title: | Head of Corporate Compliance | |||