Company: TSLTF
Filing Date: 2025-03-25
Form Type: 6-K
Source: 0001144800-25-000011
Chunk: 1

Company: TRANSALTA CORP
Filing Date: 2025-03-25
Form: 6-K
Chunk 1
---
 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           |
| By: | /s/ Nancy Brennan               |
|     | Nancy Brennan                   
 Executive Vice President, Legal 
 and External Affairs            |

Date: March 25, 2025

### EXHIBIT INDEX
| 99.1 
 99.2 |     | TransAlta Corporation’s Notice of Annual and Special Meeting of Shareholders dated March 7, 2025, advising that TransAlta Corporation’s Annual Meeting to be held on April 24, 2025, at 11:30 a.m. (Mountain time) will be held in a virtual-only meeting format. 
 TransAlta Corporation’s Management Proxy Circular dated March 7, 2025.                                                                                                                                                                                            |
|:-----|:----|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 99.3 |     | TransAlta Corporation’s Form of Proxy for its 2025 Annual Meeting of Shareholders.                                                                                                                                                                                |
| 99.4 |     | Notice of Availability of Proxy Materials for TransAlta Corporation’s 2025 Annual Meeting of Shareholders.                                                                                                                                                        |