TransAlta (NYSE: TAC) files 6-K with Sept. 30, 2025 MD&A, financials

Rhea-AI Filing Summary

TransAlta Corporation filed a Form 6-K as a foreign private issuer to furnish additional financial information to investors. The filing attaches a Management’s Discussion and Analysis of Financial Condition and Results of Operations as Exhibit 99.2 and consolidated comparative interim unaudited financial statements as Exhibit 99.3, each covering the period ended Sept. 30, 2025. These documents are incorporated by reference into several existing TransAlta registration statements on Forms S-8 and F-10 under the U.S. Securities Act of 1933.

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number 001-15214

TRANSALTA CORPORATION

(Translation of registrant’s name into English)

Suite 1400, 1100 - 1st Street S.E., Calgary, Alberta, T2G 1B1

(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):_____             

The documents listed below in this Section and filed as Exhibits 99.2 and 99.3 to this form 6-K are hereby filed with the Securities and Exchange Commission for the purpose of being and hereby are incorporated by reference into the following registration statements filed by TransAlta Corporation under the Securities Act of 1933, as amended:

Form Registration No.

S-8        333-72454

S-8        333-101470

S-8        333-236894

S-8        333-260935

F-10        333-271953

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

/s/ Joel Hunter

Joel Hunter

Executive Vice President, Finance and Chief Financial Officer

Date: Nov. 5, 2025

EXHIBIT INDEX

99.2						Management’s Discussion and Analysis of Financial Condition and Results of Operations of the registrant as at and for the period ended Sept. 30, 2025.
99.3						Consolidated comparative interim unaudited financial statements of the registrant as at and for the period ended Sept. 30, 2025.

FAQ

What does TransAlta (TAC) report in this Form 6-K?

TransAlta Corporation submits a Form 6-K as a foreign private issuer to provide a Management’s Discussion and Analysis of Financial Condition and Results of Operations and consolidated comparative interim unaudited financial statements for the period ended Sept. 30, 2025.

Which exhibits are included with TransAlta’s Form 6-K?

The filing includes Exhibit 99.2, which is the Management’s Discussion and Analysis of Financial Condition and Results of Operations as at and for the period ended Sept. 30, 2025, and Exhibit 99.3, which contains consolidated comparative interim unaudited financial statements for the same period.

How is this Form 6-K used in TransAlta (TAC) U.S. registration statements?

The Form 6-K states that Exhibits 99.2 and 99.3 are incorporated by reference into TransAlta’s registration statements on Forms S-8 (Nos. 333-72454, 333-101470, 333-236894, 333-260935) and F-10 (No. 333-271953) under the Securities Act of 1933.

Who signed TransAlta Corporation’s Form 6-K and in what capacity?

The Form 6-K is signed by Joel Hunter, who is identified as Executive Vice President, Finance and Chief Financial Officer of TransAlta Corporation.

What is the period covered by the financial information attached to this TransAlta Form 6-K?

Both the Management’s Discussion and Analysis and the consolidated comparative interim unaudited financial statements attached as Exhibits 99.2 and 99.3 relate to the registrant as at and for the period ended Sept. 30, 2025.