TAC TransAlta Corporation

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 March, 2017

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.

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):        

99.1                     The Management Proxy Circular of the Registrant dated March 9, 2017 and the Notice of Annual Meeting filed as part of Exhibit 99.1 to this Form 6-K are hereby filed for the purpose of being and hereby are incorporated by reference into the Registrant’s registration statements filed under the Securities Act of 1933, as amended.

99.2                     The Form of Proxy of the Registrant is hereby 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.

EXHIBIT INDEX

99.1                                                                 TransAlta Corporation’s Notice of Annual Meeting and Management Proxy Circular, dated March 9, 2017.

99.2                                                                 TransAlta Corporation’s Form of Proxy for its 2017 Annual Meeting of Shareholders is hereby 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.