TransAlta (TAC) files Form 6-K; Exhibit 99.1 Declares Dividends

Q: What did TransAlta (TAC) file?

TransAlta furnished a Form 6-K for October 2025.

Q: Which annual report format does TransAlta (TAC) use?

The company indicates it files annual reports on Form 40-F.

Q: What is included as Exhibit 99.1 in this filing?

Exhibit 99.1 is titled "TransAlta Declares Dividends".

Q: Who signed the TransAlta (TAC) Form 6-K?

It was signed by Joel Hunter, Executive Vice President Finance and Chief Financial Officer.

Q: What is the date on the Form 6-K?

The report is dated October 22, 2025.

TransAlta Corporation furnished a Form 6-K for October 2025, indicating it files annual reports on Form 40-F. The report was signed by Executive Vice President Finance and Chief Financial Officer Joel Hunter on October 22, 2025.

Accepted by SEC EDGAR 10/22/2025 - 04:49 PM EDT

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Form Type

6-K

Rhea-AI Filing Summary

TransAlta Corporation furnished a Form 6-K for October 2025, indicating it files annual reports on Form 40-F. The report was signed by Executive Vice President Finance and Chief Financial Officer Joel Hunter on October 22, 2025. The submission includes Exhibit 99.1 titled "TransAlta Declares Dividends," providing an update on dividend actions via the accompanying exhibit.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did TransAlta (TAC) file?

TransAlta furnished a Form 6-K for October 2025.

Which annual report format does TransAlta (TAC) use?

The company indicates it files annual reports on Form 40-F.

What is included as Exhibit 99.1 in this filing?

Exhibit 99.1 is titled "TransAlta Declares Dividends".

Who signed the TransAlta (TAC) Form 6-K?

It was signed by Joel Hunter, Executive Vice President Finance and Chief Financial Officer.

What is the date on the Form 6-K?

The report is dated October 22, 2025.

Where is TransAlta’s principal executive office?

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

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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 22, 2025		/s/ Joel Hunter
		Joel Hunter
		Executive Vice President Finance and Chief Financial Officer

EXHIBIT INDEX

Exhibit Number		Description

99.1		TransAlta Declares Dividends

Source: View Original Filing on SEC EDGAR