FG Filed by Filing Services Canada Inc. 403-717-3898
FORM 6-K
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
Report of Foreign Private Issuer
 
Pursuant to Rule 13a-16 or 15d-16
of the Securities Exchange Act of 1934
 
For the month of August, 2012
 
TRANSALTA CORPORATION
(Translation of registrant’s name into English)

110-12th 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): ____
 
Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.
 
Yes           _____                                                                                   No           X
 
If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):  82-________
 
 
 
 
 
I
 
The document listed below as Exhibit 99.1 to this Form 6-K is a copy of the Registrant’s news release dated August 10, 2012 announcing TransAlta closes $225 million sale of preferred shares with respect to the Corporation’s preferred share offering which is being made solely in Canada.  This news release is being furnished, not filed, solely to supply information in accordance with Regulation FD 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
 
 
 
 
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/Brett Gellner  
    Chief Financial Officer  
       
Date: August 10, 2012      
 
 
 
 
 
EXHIBIT INDEX
 
99.1