SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C.  20549
 ______________________
  FORM 6-K
  REPORT OF FOREIGN PRIVATE ISSUER
  Pursuant to Rule 13a-16 or 15d-16 of the
 Securities Exchange Act of 1934
  For the month of June, 2011
  Commission File Number: 000-21742
  Subsea 7 S.A.
 (Translation of registrant’s name into English)
  
 200 Hammersmith Road
 London, W6 7DL
 England
 (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.


Form 20-F x
Form 40-F  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)(1):   __
 
 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):   __
 Attached herewith as Exhibit 99.1 is a press release, dated June 17, 2011, whereby Subsea 7 S.A. (the “Company”) announced that on June 16, 2011 the Company purchased 230,000 of its shares at an average price of NOK 132.42 per share. This represents approximately 0.07% of the Company’s issued share capital.
 
 The shares were purchased in accordance with the Company’s share repurchase program previously announced on June 15, 2011. The shares have been acquired on the Oslo Børs according to the authority granted by the Board.
 
 As at June 17, 2011, the Company held indirectly 8,474,781 treasury shares representing 2.41% of the total number of issued shares. In addition, 583,000 shares were held in an employee benefit trust to support the 2009 Long-Term Incentive Plan and a further 1,612,140 shares were held in a separate employee benefit trust to support the restricted stock award plan. The number of total shares in issue, including treasury shares, of 351,793,731 shares remains unchanged.
 
 The information set forth above shall be deemed to be incorporated by reference into the prospectuses forming a part of our Registration Statements on Form S-8 (No. 33-85168, No. 333-09292, No. 333-74321, No. 333-124983, No. 333-124997 and No. 333-166574) and our Registration Statements on Form F-3 and Form F-3/A (No. 333-86288) and to be a part of such prospectuses from the date of the filing thereof.  The attached press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.
 
 Certain statements set forth above and contained in the press release furnished pursuant to this Form 6-K may include “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements may be identified by the use of words like “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “forecast,” “project,” “will,” “should,” “seek,” and similar expressions.  The forward-looking statements reflect our current views and assumptions and are subject to risks and uncertainties.  The following factors, and others which are discussed in our public filings and submissions with the U.S. Securities and Exchange Commission, are among those that may cause actual and future results and trends to differ materially from our forward-looking statements: actions by regulatory authorities or other third parties; unanticipated costs and difficulties related to the integration of Acergy S.A. and Subsea 7 Inc. and our ability to achieve benefits therefrom; our ability to recover costs on significant projects; the general economic conditions and competition in the markets and businesses in which we operate; our relationship with significant clients; the outcome of legal and administrative proceedings or governmental enquiries; uncertainties inherent in operating internationally; the timely delivery of ships on order and the timely completion of ship conversion programs; the impact of laws and regulations; and operating hazards, including spills and environmental damage. Many of these factors are beyond our ability to control or predict. Given these factors, you should not place undue reliance on the forward-looking statements.
 
 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 .


SUBSEA 7 S.A.Date: June 17, 2011
By:
/s/ Jean CahuzacName:
Jean CahuzacTitle:
Chief Executive Officer