Prospectus Exemption

Summary by AI ^BETAClose X

Banco Santander S.A. has announced that it will not publish a prospectus for its issuance of up to 334,809,216 new ordinary shares related to the acquisition of Webster Financial Corporation, electing instead to rely on exemptions within the Prospectus Regulation. The company has published an exemption document on its corporate website, which has been filed with the CNMV and made publicly available. This document does not constitute a prospectus and has not been reviewed or approved by the CNMV.

Disclaimer*

Banco Santander S.A.

23 April 2026

Banco Santander, S.A. ("Banco Santander"), in accordance with the provisions of securities market legislation, hereby announces the following:

OTHER RELEVANT INFORMATION

In connection with the issuance of up to 334,809,216 new ordinary shares of Banco Santander in the context of its acquisition of Webster Financial Corporation, it is hereby noted that Banco Santander is not required to publish, and will not publish, a prospectus for the purposes of Regulation (EU) 2017/1129 of the European Parliament and of the Council of June 14, 2017, on the prospectus to be published when securities are offered to the public or admitted to trading on a regulated market and repealing Directive 2003/71/EC, as amended (the "Prospectus Regulation"). Banco Santander has elected to rely on the exemptions set forth in Article 1(4)(da) and Article 1(5)(a) of the Prospectus Regulation.

To that end, Banco Santander has today published on its corporate website (www.santander.com) an exemption document (the "Exemption Document"), in accordance with the requirements of Annex IX of the Prospectus Regulation. The Exemption Document has been filed with the National Securities Market Commission (Comisión Nacional del Mercado de Valores, "CNMV") and made available to the public in accordance with Article 21(2) of the Prospectus Regulation. The Exemption Document is available at https://www.santander.com/content/dam/santander-com/es/documentos/aumento-de-capital-para-la-adquisicion-de-webster/exemption-document.pdf

The Exemption Document does not constitute a prospectus within the meaning of the Prospectus Regulation and is not subject to review and approval under Article 20 thereof. Accordingly, it has not been reviewed or approved by the CNMV.

Boadilla del Monte (Madrid), 23 April 2026

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