TransAlta (NYSE: TAC) plans Q4 2025 results call and 2026 guidance

Rhea-AI Filing Summary

TransAlta Corporation has filed a Form 6-K announcing logistics for its upcoming earnings communication. The company will release its fourth quarter and full year 2025 results before markets open on February 27, 2026, followed by a conference call and webcast at 9:00 a.m. Mountain Time (11:00 a.m. ET).

The call will cover both the results and TransAlta’s 2026 annual guidance and is open to investors, analysts, media and other interested parties via online registration and webcast. Replay and transcript access will be provided through the company’s website.

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 January 2026

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: January 27, 2026		/s/ Joel Hunter
		Joel Hunter
		Executive Vice President Finance and Chief Financial Officer

EXHIBIT INDEX

Exhibit Number		Description
99.1		TransAlta to Host Fourth Quarter and Full Year 2025 Results Conference Call

EXHIBIT 99.1

TransAlta to Host Fourth Quarter and Full Year 2025 Results Conference Call

CALGARY, Alberta, Jan. 27, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) will release its fourth quarter and full year 2025 results before markets open on Friday, February 27, 2026. A conference call and webcast to discuss the results as well as the Company’s 2026 annual guidance will be held for investors, analysts, members of the media and other interested parties the same day beginning at 9:00 a.m. Mountain Time (11:00 a.m. ET).

Fourth Quarter and Full Year 2025 Conference Call:
Webcast link: https://edge.media-server.com/mmc/p/whytyzbs

To access the conference call via telephone, please register ahead of time using the call link below: https://register-conf.media-server.com/register/BIaa8023bbcae44cde8d2a046c730467b3. Once registered, participants will have the option of 1) dialing into the call from their phone (via a personalized PIN); or 2) clicking the “Call Me” option to receive an automated call directly to their phone.

Related materials will be available on the Investor Centre section of TransAlta’s website at https://transalta.com/investors/presentations-and-events/. If you are unable to participate in the call, the replay will be accessible at https://edge.media-server.com/mmc/p/whytyzbs. A transcript of the broadcast will be posted on TransAlta’s website once it becomes available.

About TransAlta Corporation:

TransAlta owns, operates and develops a diverse fleet of electrical power generation assets in Canada, the United States and Australia with a focus on long-term shareholder value. TransAlta provides municipalities, medium and large industries, businesses and utility customers with affordable, energy efficient and reliable power. Today, TransAlta is one of Canada’s largest independent producers of wind power and thermal generation and is Alberta’s largest producer of hydro-electric power. For over 114 years, TransAlta has been a responsible operator and a proud member of the communities where we operate and where our employees work and live. TransAlta aligns its corporate goals with the UN Sustainable Development Goals and the Future-Fit Business Benchmark, which also defines sustainable goals for businesses. Our reporting on climate change management has been guided by the International Financial Reporting Standards (IFRS) S2 Climate-related Disclosures Standard and the Task Force on Climate-related Financial Disclosures (TCFD) recommendations. TransAlta has achieved a 70 per cent reduction in GHG emissions or 22.7 million tonnes CO2e since 2015 and received an upgraded MSCI ESG rating of AA.

For more information about TransAlta, visit its website at transalta.com.

Note: All financial figures are in Canadian dollars unless otherwise indicated.

For more information:

Investor Inquiries:	Media Inquiries:
Phone: 1-800-387-3598 in Canada and U.S.	Phone: 1-855-255-9184
Email: investor_relations@transalta.com	Email: ta_media_relations@transalta.com

FAQ

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

TransAlta announces the schedule and access details for its fourth quarter and full year 2025 results release and conference call. It will publish results before markets open on February 27, 2026, and host a same-day webcast to discuss results and 2026 annual guidance.

When will TransAlta (TAC) release its Q4 and full year 2025 results?

TransAlta plans to release its fourth quarter and full year 2025 results before markets open on Friday, February 27, 2026. That same day, management will host a conference call and webcast to review performance and present the company’s 2026 annual guidance to stakeholders.

What time is TransAlta’s Q4 and full year 2025 conference call?

The conference call and webcast begin at 9:00 a.m. Mountain Time, which is 11:00 a.m. Eastern Time, on February 27, 2026. Investors, analysts, media and other interested parties can join to hear discussion of results and TransAlta’s 2026 annual guidance.

How can investors access TransAlta’s Q4 2025 earnings call and webcast?

Participants can access the call by registering through the provided online link, then either dialing in with a personalized PIN or using the “Call Me” option. A live webcast and subsequent replay are available via the Investor Centre on TransAlta’s website.

Will a replay or transcript of TransAlta’s earnings call be available?

Yes. A replay of the webcast will be accessible through the same media-server link after the event. In addition, a written transcript of the broadcast will be posted on TransAlta’s website once it becomes available, allowing investors to review the discussion later.

What guidance will TransAlta (TAC) provide during the February 27, 2026 call?

TransAlta plans to discuss its 2026 annual guidance during the February 27, 2026 conference call. This guidance will be presented alongside fourth quarter and full year 2025 results, offering stakeholders management’s forward-looking expectations for the company’s operations and financial performance.

What kind of business does TransAlta Corporation operate?

TransAlta owns, operates and develops a diverse fleet of electrical power generation assets across Canada, the United States and Australia. It supplies affordable, energy efficient and reliable power, with major positions in wind, thermal and hydro-electric generation, particularly as Alberta’s largest hydro-electric power producer.