Company: BBVXF
Filing Date: 2025-09-05
Form Type: F-4/A
Source: 0001193125-25-196513
Chunk: 92

Company: BANCO BILBAO VIZCAYA ARGENTARIA, S.A.
Filing Date: 2025-09-05
Form: F-4/A
Chunk 92
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 Banco Sabadell is subject to ongoing reporting requirements under CNMV rules, including that its annual
financial statements be audited under prevailing legislation regulating the audit of accounts in Spain. The pro forma financial information has been prepared using the consolidated financial statements of BBVA as of and for the six months ended June
30, 2025 included in the BBVA First Half 2025 Results Form 6-K incorporated by reference herein and as of and for the year ended December 31, 2024 included in the 2024 Form 20-F incorporated by reference
herein, as well as information published by BBVA regarding BBVA’s payment of dividends and changes in treasury shares in 2025.

59

Basis of Presentation The pro forma financial information has been prepared on the basis of the historical consolidated financial information of each of BBVA and Banco Sabadell, which has been prepared, in the case of BBVA, in compliance with IFRS-IASB and, in the case of Banco Sabadell, in accordance with IFRS-EU.See “Note on Banco Sabadell Information—Description of Certain Differences Between IFRS-EUand IFRS-IASB”. The pro forma financial information presented herein includes:

| • |     | Accompanying explanatory notes describing the sources of information, assumptions and estimates for the 
 preparation of the pro forma financial information.                                                     |

For the preparation of the pro forma financial information included herein, IFRS 3 “Business Combinations” has been considered. Additionally, in order to complete such valuation and adjust the impacts of the business combination in accordance with paragraphs 45 and B67 of such standard, the standard establishes the possibility of extending the valuation measurement period to one year from the date the transaction takes place. Assumptions and Estimates Used The pro forma financial information reflects completion of the exchange offer under each of the Full Acquisition Scenario and the 50% Acceptance Scenario. The adjustments included in the pro forma financial information solely include those that are factually supportable on the basis of the information that is publicly available to BBVA. See “—Sources of Information” above. The main assumptions and estimates used in the preparation of the pro forma financial information are the following:

| • |     | There are 5,023,677,732 Banco Sabadell shares subject to the exchange offer, which is the number of Banco                                                            
 Sabadell shares representing 100% of the share capital of Banco Sabadell as of September