# EDGAR Filing Document

**Accession Number:** 0001144800
**File Stem:** 0001171843-26-001171
**Filing Date:** 2026-2
**Character Count:** 4511
**Document Hash:** 0a9cb739b19623cc1b56649e2238d5ef
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001171843-26-001171.hdr.sgml**: 20260227

**ACCESSION NUMBER**: 0001171843-26-001171

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260227

**FILED AS OF DATE**: 20260227

**DATE AS OF CHANGE**: 20260227

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TRANSALTA CORP
- **CENTRAL INDEX KEY:** 0001144800
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15214
- **FILM NUMBER:** 26692640

**BUSINESS ADDRESS:**
- **STREET 1:** TRANSALTA PLACE
- **STREET 2:** 1400, 1100 - 1ST STREET S.E.
- **CITY:** CALGARY
- **STATE:** A0
- **ZIP:** T2G 1B1
- **BUSINESS PHONE:** 403-267-2014

**MAIL ADDRESS:**
- **STREET 1:** TRANSALTA PLACE
- **STREET 2:** 1400, 1100 - 1ST STREET S.E.
- **CITY:** CALGARY
- **STATE:** A0
- **ZIP:** T2G 1B1

**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 February 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 [ ] &nbsp;&nbsp;&nbsp;&nbsp; Form 40-F [ X ]

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**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.

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| | |
|:---|:---|
|  | <u>**&nbsp;&nbsp;&nbsp;&nbsp;TransAlta Corporation&nbsp;&nbsp;&nbsp;&nbsp;**</u> |
|  | (Registrant) |
| Date: February 27, 2026 | <u>&nbsp;&nbsp;&nbsp;&nbsp;/s/ Joel Hunter&nbsp;&nbsp;&nbsp;&nbsp;</u> |
|  | Joel Hunter |
|  | Executive Vice President Finance and Chief Financial Officer |

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**EXHIBIT INDEX**

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| | |
|:---|:---|
| <u>**Exhibit Number**</u> | <u>**Description**</u> |
| [99.1](exh_991.htm) | [TransAlta to Host Investor Day](exh_991.htm) |

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## Exhibit 99.1

**EXHIBIT 99.1**

**TransAlta to Host Investor Day**

CALGARY, Alberta, Feb. 27, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) is pleased to announce that it will hold an Investor Day in Toronto on Monday, March 23, 2026.

The formal presentation will commence at 9:00 a.m. During the event, we will provide an in-depth overview of the Company's strategic priorities, long-term plan, financial outlook and growth opportunities.

TransAlta's Investor Day is open to the investment community and is being hosted in a hybrid format, with in-person and live webcast attendance options available. Attendees may register for the webcast using the link below or register for in-person attendance through the Investor Centre of TransAlta's website.

**Webcast Registration Link:** https://reg.lumiengage.com/transalta

**Event details:** TransAlta Investor Day

Monday, March 23, 2026

Start time: 9:00 a.m. ET / 7:00 a.m. MT

For those unable to attend or view the event live, a recording of the video webcast and corresponding presentation will be made available on the Investor Centre section of TransAlta's website.

***About TransAlta Corporation:***

TransAlta is one of Canada's largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today's energy needs while building for what comes next.

For more information about TransAlta, visit our web site at <u>transalta.com</u>.

**For more information:**

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| | |
|:---|:---|
| ***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 |

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