TransAlta (TAC) to host third quarter 2025 results conference call

Rhea-AI Filing Summary

TransAlta Corporation submitted a Form 6-K as a foreign private issuer. The filing is administrative and primarily points to an exhibit titled “TransAlta to Host Third Quarter 2025 Results Conference Call,” indicating preparation to discuss its third-quarter 2025 results with investors.

Form 6-K: How Foreign Companies Report to the SEC →

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 October 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 office)

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 [   ]      Form 40-F [ X ]

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
		(Registrant)
Date: October 8, 2025		/s/ Joel Hunter
		Joel Hunter
		Executive Vice President Finance and Chief Financial Officer

EXHIBIT INDEX

Exhibit Number		Description
99.1		TransAlta to Host Third Quarter 2025 Results Conference Call

FAQ

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

TransAlta Corporation files a Form 6-K as a foreign private issuer. The filing mainly references an exhibit about hosting a Third Quarter 2025 Results Conference Call, signaling an upcoming discussion of quarterly results with the market.

What is Exhibit 99.1 in TransAlta (TAC) October 2025 Form 6-K?

Exhibit 99.1 is titled “TransAlta to Host Third Quarter 2025 Results Conference Call.” This indicates TransAlta plans a conference call related to its third-quarter 2025 results, offering investors and analysts a forum to hear management’s commentary.

Who signed TransAlta Corporation (TAC) October 2025 Form 6-K?

The Form 6-K was signed by Joel Hunter, Executive Vice President Finance and Chief Financial Officer. His signature confirms the company’s authorization of the filing under the Securities Exchange Act of 1934 requirements for foreign private issuers.

What reporting framework does TransAlta (TAC) use, Form 20-F or Form 40-F?

The filing indicates TransAlta uses Form 40-F for its annual reports. This aligns the company’s annual disclosure format with Canadian issuers that follow the Form 40-F framework instead of the Form 20-F used by many other foreign private issuers.

Does this TransAlta (TAC) Form 6-K include third-quarter 2025 financial results?

The document itself does not present third-quarter 2025 financial figures. It instead references an exhibit titled about hosting a Third Quarter 2025 Results Conference Call, suggesting detailed financial information will be discussed separately on that call.