BBVXF Banco Bilbao Vizcaya Argentari (PK)

Filed by Banco Bilbao Vizcaya Argentaria, S.A.

Pursuant to Rule 425 under the Securities Act of 1933

Subject Company: Banco de Sabadell, S.A.

Commission File No.: 001-10110

ENGLISH VERSION

Dear Shareholders,

On July 5th, we will hold an extraordinary BBVA shareholders’ meeting with the purpose of approving a capital increase, thus moving forward with Banco Sabadell’s offer. As you are aware, we have proposed the exchange of one new BBVA share for every 4.83 shares of Banco Sabadell. This capital increase will not involve any disbursements from BBVA shareholders.

The combination of both banks will strengthen our position and scale in the Spanish market, and in that way we will achieve greater efficiency and profitability.

For all of you, BBVA shareholders, this represents a clear value creation. On the one hand, because you will be part of a stronger, more competitive bank. On the other, because you will receive high returns on invested capital with a limited impact on the capital ratio. All of that in addition to our attractive shareholder distribution policy, which represents a payout of between 40 to 50 percent of profit. We also have the intention to distribute any excess capital over 12 percent.

This transaction is also positive for our customers, who will have at their disposal the reach of a global bank, a unique value proposition and a better product offering; for employees, who will be able to take advantage of new professional opportunities; and for society as a whole, since the combined bank will have greater capacity to offer financing for families and businesses and higher contributions through taxes. All of this will result in greater economic and social progress.

As a shareholder, your involvement in the bank’s decision-making is essential, and I would like to encourage you to participate in this shareholders’ meeting that, as always, will take place in Bilbao. You may access all the information on our website.

Thank you very much for your trust and constant support which encourage us to continue building the most attractive project in the European banking sector.

IMPORTANT INFORMATION FOR INVESTORS

In connection with the proposed transaction, Banco Bilbao Vizcaya Argentaria, S.A. intends to file with the U.S. Securities and Exchange Commission (the “SEC”) a Registration Statement on Form F-4 that will include an offer to exchange/prospectus. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT, OFFER TO EXCHANGE/PROSPECTUS AND ALL OTHER RELEVANT DOCUMENTS THAT WILL BE FILED WITH THE SEC REGARDING THE PROPOSED TRANSACTION WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. All such documents filed with the SEC will be available free of charge at the SEC’s website at www.sec.gov.

This communication shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. This document is not an offer of securities for sale into the United States or elsewhere. No offering of securities shall be made in the United States except pursuant to registration under the U.S. Securities Act of 1933, as amended (the “Securities Act”), or an exemption therefrom.

Forward-Looking Statements

This communication includes forward-looking statements within the meaning of the federal securities laws (including Section 27A of the Securities Act) with respect to the proposed transaction, including the anticipated timing of the transaction and statements regarding the consequences of the transaction. These forward-looking statements are generally identified by terminology such as “believe,” “may,” “will,” “potentially,” “estimate,” “continue,” “anticipate,” “intend,” “could,” “would,” “should,” “project,” “target,” “plan,” “expect,” or the negatives of these terms or variations of them or similar terminology. The absence of these words, however, does not mean that the statements are not forward-looking. These forward-looking statements are based upon current expectations, beliefs, estimates and assumptions that, while considered reasonable as and when made by BBVA and its management, are inherently uncertain. Such forward-looking statements are subject to risks, uncertainties, and other factors that could cause actual results to differ materially from those expressed or implied by such forward-looking statements. For example, the expected timing and likelihood of completion of the transaction, including the timing, receipt and terms and conditions of any required governmental and regulatory approvals of the transaction (including the required authorization or no-opposition by the Spanish National Securities Market Commission, the European Central Bank and certain anti-trust and regulatory authorities), that could reduce anticipated benefits of the transaction or cause BBVA to not be able to complete the transaction, risks related to disruption of management time from ongoing business operations, the risk that matters relating to the transaction could have adverse effects on the market price of the shares of BBVA, the risk that the transaction could have an adverse effect on the ability of BBVA or Banco Sabadell to retain customers and retain and hire key personnel and maintain relationships with their suppliers and customers and on their operating results and businesses generally, the risk that problems may arise in successfully integrating the businesses of the companies, which may result in the combined company not operating as effectively and efficiently as expected, the risk that the combined company may be unable to achieve synergies or that it takes longer than expected to achieve those synergies, and other factors. All such factors are difficult to predict and are beyond BBVA’s control, including those detailed in BBVA’s annual reports on Form 20-F and current reports on Form 6-K that are available on the SEC’s website at http://www.sec.gov. BBVA undertakes no obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.