6-K

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 May, 2014

TRANSALTA CORPORATION

(Translation of registrant’s name into English)

110-12^th Avenue S.W., Box 1900, Station “M”, Calgary, Alberta, T2P 2M1

(Address of principal executive offices)

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

Form 20-F____ Form 40-F X

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): ____

I

The document listed below as Exhibit 99.1 to this Form 6-K is a copy of the Registrant’s news release dated May 29, 2014 announcing “TRANSALTA ANNOUNCES PUBLIC OFFERING OF U.S. SENIOR NOTES.”

This news release is being furnished, not filed, and will not be incorporated by reference into any registration statement filed by TransAlta Corporation under the Securities Act of 1933, as amended.

99.1 Press release dated May 29, 2014 announcing “TRANSALTA ANNOUNCES PUBLIC OFFERING OF U.S. SENIOR NOTES.”

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.

	TransAlta Corporation
By:	/s/ Donald Tremblay
	Donald Tremblay
	Chief Financial Officer

Date: May 29, 2014

EXHIBIT INDEX

99.1 Press release dated May 29, 2014 announcing “TRANSALTA ANNOUNCES PUBLIC OFFERING OF U.S. SENIOR NOTES.”

EX-99.1

TRANSALTA ANNOUNCES PUBLIC OFFERING OF U.S. SENIOR NOTES

CALGARY, Alberta (May 29, 2014) – TransAlta Corporation (TransAlta) (TSX: TA; NYSE: TAC) today announced that it has commenced a public offering of its senior notes in a U.S. registered public offering. TransAlta will use the net proceeds from the sale of the notes to repay borrowings under existing credit facilities and for general corporate purposes. The precise timing, size and terms of the offering are subject to market conditions and other factors.

HSBC Securities (USA) Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated are joint book-running managers for the offering which is being made by way of a prospectus supplement that will be filed with the United States Securities and Exchange Commission (the “SEC”) to TransAlta’s short form base shelf prospectus which was previously filed with the SEC.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these 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 state or other jurisdiction.

A copy of the short form base shelf prospectus and the prospectus supplement relating to the offering may be obtained by visiting the SEC’s Web site at www.sec.gov or from HSBC Securities (USA) Inc., Attention: Transaction Management Group, HSBC Tower 3, 425 5^th Avenue New York, NY 10018, Telephone: (866) 811-8049, or Merrill Lynch, Pierce, Fenner & Smith Incorporated, 222 Broadway, New York, New York 10038, Attn: Prospectus Department or email: dg.prospectus_requests@baml.com.

About TransAlta Corporation

TransAlta is a corporation amalgamated under the Canada Business Corporations Act. The registered office and principal place of business of TransAlta are at 110 – 12th Avenue S.W., Calgary, Alberta, Canada T2P 2M1. TransAlta generates and markets electricity in Canada, the United States and Australia through its portfolio of facilities fueled by coal, natural gas, hydroelectric, wind and geothermal resources.

Caution Regarding Forward-Looking Information

This press release contains forward-looking statements within the meaning of securities laws, including the “safe harbour” provisions of Canadian securities legislation and the United States Private Securities Litigation Reform Act of 1995. Forward-looking information is often, but not always, identified by the use of words such as “anticipate,” “believe,” “expect,” “plan,” “intend,” “forecast,” “target, ” “project,” “guidance,” “may,” “will,” “should,” “could,” “estimate,” “predict” or similar words suggesting future outcomes or language suggesting an outlook. Forward-looking statements in this press release include, but are not limited to, the anticipated proceeds of the offering and the use of those proceeds.

 

Forward-looking statements and information contained in this press release are based on our current beliefs as well as assumptions we have made and information currently available to us. Although we consider these assumptions to be reasonable based on information currently available to us, they may prove to be incorrect.

By their very nature, the forward-looking statements included in this press release involve inherent risks and uncertainties, both general and specific, and risks that predictions, forecasts, projections and other forward-looking statements will not be achieved, including, without limitation, the failure to close the offering discussed herein on the terms disclosed herein or at all and the failure to use the proceeds of the offering as disclosed herein. We caution readers not to place undue reliance on these statements as a number of important factors could cause the actual results to differ materially from the beliefs, plans, objectives, expectations and anticipations, estimates and intentions expressed in such forward-looking statements as may be found under the heading “Risk Factors” in our annual information form for the year ended December 31, 2013 and under the heading “Risk Factors” in our management's discussion and analysis for the year ended December 31, 2013.

Readers are cautioned that the foregoing list of factors that may affect future results is not exhaustive. When relying on our forward-looking statements to make decisions with respect to TransAlta, investors and others should carefully consider the foregoing factors and other uncertainties and potential events. Furthermore, the forward-looking statements contained in this press release are made as of the date of this document and we do not undertake any obligation to update publicly or to revise any of the included forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law. The forward-looking statements contained in this press release are expressly qualified by this cautionary statement.

Note: All financial figures are in Canadian dollars unless noted otherwise.

For more information:

Investor inquiries:	Media inquiries:
Brent Ward	Stacey Hatcher
Director, Corporate Finance and Investor Relations	Manager, External Communications
Phone: 1-800-387-3598 in Canada and U.S.	Cell: 587-216-2242
Email: investor_relations@transalta.com	Toll-free media number: 1-855-255-9184
	Alternate local number: 403-267-2540