SCHEDULE: FMR LLC Discloses 7.6% Stake in TransAlta Corp

FMR LLC and Abigail P. Johnson have reported a 7.6% beneficial ownership stake in TransAlta Corp, totaling 22,621,020 common shares.

Summary

• FMR LLC and Abigail P. Johnson jointly reported beneficial ownership of 22,621,020 common shares of TransAlta Corp.
• This represents 7.6% of TransAlta Corp's total outstanding common stock.
• FMR LLC holds sole voting power over 22,461,169 shares and sole dispositive power over 22,621,020 shares.
• Abigail P. Johnson, as a controlling person of FMR LLC, is deemed to beneficially own the same 22,621,020 shares with sole dispositive power.
• The filing is an Amendment No. 1 to a Schedule 13G, indicating an update to a previously reported ownership position.
• The event requiring this filing occurred on September 30, 2025.

Sentiment

Score: 6

Explanation: The filing is a routine disclosure of a significant beneficial ownership stake by a major institutional investor. While not directly a positive or negative for the issuer's performance, the continued substantial holding by FMR LLC can be interpreted as a neutral to slightly positive signal of investor confidence, without implying any active engagement to influence control.

Positives

• A significant institutional investor, FMR LLC, maintains a substantial 7.6% stake in TransAlta Corp, which can be interpreted as a vote of confidence in the company's long-term prospects and strategic direction.

Future Outlook

This filing does not provide forward-looking statements or guidance from TransAlta Corp.

Industry Context

This filing indicates that a major institutional asset manager, FMR LLC (Fidelity), continues to hold a significant passive stake in TransAlta Corp. Such a substantial holding by a prominent investment firm can be viewed by the market as a vote of confidence in the company's sector and strategic direction, particularly within the energy or utilities industry where TransAlta operates. It suggests that FMR LLC sees value in TransAlta's common stock as part of its ordinary course of business investment strategy.

Stakeholder Impact

• Shareholders: The disclosure of a significant institutional stake by FMR LLC may provide a level of confidence to other shareholders, indicating that a major player sees value in TransAlta Corp's stock.
• Management: TransAlta Corp's management is aware of a large, passive institutional holder, which can influence market perception but does not imply direct control or influence over operational decisions based on the certification.

Key Dates

Keywords

TransAlta Corp, FMR LLC, Abigail P. Johnson, Schedule 13G, Beneficial Ownership, Institutional Investor, Common Stock, SEC Filing, Investment Management