Company: BBVXF
Filing Date: 2025-08-29
Form Type: 6-K
Source: 0001193125-25-192636
Chunk: 1

Company: BANCO BILBAO VIZCAYA ARGENTARIA, S.A.
Filing Date: 2025-08-29
Form: 6-K
Chunk 1
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 consideration offered by BBVA to the shareholders of Banco
Sabadell under the Offer is adjusted to one (1) newly issued ordinary share of BBVA and €0.70 in cash for every five point five four eight three (5.5483) ordinary shares of Banco Sabadell.

This adjustment, as outlined in the prior announcement of May 9, 2024, is intended to maintain the economic terms of the Offer equivalent, following the
dividend payments made by Banco Sabadell.

Madrid, August 29, 2025

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.

| Date: August 29, 2025 |     | Banco Bilbao Vizcaya Argentaria, S.A.  
 By: /s/ Victoria del Castillo Marchese |
|:----------------------|:----|:---------------------------------------|
|                       |     | Name: Victoria del Castillo Marchese   |
|                       |     | Title: Global Head of Strategy & M&A   |