UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January, 2015

Commission File Number 001-36125

ABENGOA, S.A.

(Exact name of registrant as specified in its charter)

Not applicable

(Translation of registrant’s name into English)

Campus Palmas Altas

C/ Energía Solar 1

41014, Seville, Spain

Tel: +34 954 93 71 11

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

x Form 20-F oForm 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b) (1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b) (7): o

ABENGOA, S.A.

FORM 6-K

Abengoa, S.A. (“Abengoa”), in compliance with the provisions of article 82 of the Securities Market Act, hereby notifies the following

Relevant Fact

In connection with the announcement made by the company on 12 January 2015 regarding the commencement of a public offering of up to 9,200,000 of its ordinary shares in Abengoa Yield (NASDAQ: ABY, “Abengoa Yield”) by means of an underwritten secondary public offering, Abengoa announces the pricing of an underwritten public offering of 9,200,000 of its ordinary shares in Abengoa Yield plc by means of a secondary public offering (the “Offering”) at a price of $31 per share. Abengoa will receive all proceeds from the Offering, in the total amount of $285.2 million, less expenses and underwriters’ discounts. In addition, the underwriters of the Offering have a 30-day option to purchase up to 1,380,000 additional ordinary shares from Abengoa. The Offering is expected to close on January 22, 2015.

Citigroup and BofA Merrill Lynch are acting as global coordinators of the Offering. HSBC and Banco Santander are acting as joint bookrunners.

Copies of the final prospectus, when available, may be obtained without charge from the offices of Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717 (Tel: 800-831-9146) or BofA Merrill Lynch, at 222 Broadway, New York, NY 10038, Attn: Prospectus Department, or by emailing [email protected].

A registration statement relating to these securities has been filed with, and has been declared effective as of the date hereof by, the Securities and Exchange Commission. This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

This communication is directed only at (i) persons who are outside the United Kingdom or (ii) in the United Kingdom, persons who have professional experience in matters relating to investments falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion)

Order 2005, as amended (the “Order”), or who are high net worth entities, and other persons to whom it may lawfully be communicated, falling within Article 49(2) of the Order (all such persons together being referred to as “relevant persons”). Any investment or investment activity to which this communication relates will only be available to and will only be engaged in with, relevant persons. Any person who is not a relevant person must not act or rely on this document or any of its contents.

Forward-Looking Statements

This communication contains forward-looking statements that may state Abengoa’s or its management’s intentions, beliefs, expectations or predictions for the future. Such forward looking statements are subject to certain risks, uncertainties and assumptions, and typically can be identified by the use of words such as “will,” “expect,” “estimate,” “anticipate,” “forecast,” “plan,” “believe,” and similar terms. Although Abengoa believes that its expectations are reasonable, it can give no assurance that these expectations will prove to have been correct, and actual results may vary materially. Factors that could cause actual results to differ materially from those contemplated above include, among others, risks and uncertainties related to the capital markets. Any forward looking information presented herein is made only as of the date of this press release, and we do not undertake any obligation to update or revise any forward-looking information to reflect changes in assumptions, the occurrence of unanticipated events, or otherwise.

SIGNATURES

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.

	ABENGOA, S.A.

Date: January 15, 2015	By:	/s/ Daniel Alaminos Echarri
		Name: Daniel Alaminos Echarri
		Title: General Secretary