TransAlta (NYSE: TAC) investors approve directors, pay plan and auditor at 2026 meeting

Rhea-AI Filing Summary

TransAlta Corporation reported the results of its Annual and Special Meeting of Shareholders held on April 30, 2026. A total of 188,939,751 common shares, representing 63.55% of outstanding shares, were represented in person or by proxy.

All nine management director nominees were elected, each receiving more than 92% of votes cast, with most above 99% support. Shareholders also approved the appointment of Ernst & Young LLP as auditors for 2026, with 99.19% of votes cast in favour.

The non-binding advisory vote on the company’s approach to executive compensation passed with 96.69% support. Shareholders further approved a resolution to increase the number of common shares reserved for issuance under the Share Unit Plan, with 98.53% of votes cast in favour.

Key Figures

Shares represented: 188,939,751 shares Quorum percentage: 63.55% Auditor appointment support: 187,406,979 votes for (99.19%) +4 more

7 metrics

Shares represented 188,939,751 shares Common shares represented at the April 30, 2026 meeting (63.55% outstanding)

Quorum percentage 63.55% Portion of outstanding common shares represented at the meeting

Auditor appointment support 187,406,979 votes for (99.19%) Approval of Ernst & Young LLP as auditors for 2026

Say-on-pay support 176,968,517 votes for (96.69%) Advisory vote on executive compensation approach

Share Unit Plan increase support 186,169,941 votes for (98.53%) Resolution to increase shares reserved under Share Unit Plan

Lowest director support 92.54% for Votes in favour of director nominee Brian Baker

Highest director support 99.64% for Votes in favour of director nominees Joel E. Hunter and James Reid

Key Terms

Annual and Special Meeting of Shareholders, non-binding advisory vote, executive compensation, Share Unit Plan, +1 more

5 terms

Annual and Special Meeting of Shareholders financial

"Annual and Special Meeting of Shareholders (the “Meeting”) April 30, 2026"

A combined reference to the regular yearly gathering where shareholders vote on routine business (annual meeting) and any extra meetings called to decide urgent or specific matters (special meeting). Think of the annual meeting as the company’s yearly check-in and the special meeting as a quick boardroom session called when something important requires shareholder approval; both matter because they determine leadership, major policy, and actions that can change a stock’s value.

non-binding advisory vote financial

"The non-binding advisory vote to accept the Corporation's approach to executive compensation was approved."

A non-binding advisory vote is a shareholder vote that expresses investors’ opinion on a proposal (such as executive pay, corporate policy, or governance practices) but does not legally force the company to act. Think of it like a customer survey: it signals whether owners approve or disapprove and can pressure boards and managers to change course, so investors watch the result as an indicator of governance risk and potential future shifts in company strategy or leadership.

executive compensation financial

"The non-binding advisory vote to accept the Corporation's approach to executive compensation was approved."

Payments and benefits given to a company's top leaders — including base salary, cash bonuses, stock awards, options and retirement or perquisites — designed to compensate and motivate them. Investors care because these packages affect a company’s costs, influence executives’ decisions and signal how well management’s interests line up with shareholders’; like a captain’s contract, the structure of pay can encourage safe navigation toward long-term gains or risky short-term moves that hurt returns.

Share Unit Plan financial

"increase in the number of common shares reserved for issuance under the Corporation’s Share Unit Plan was approved."

A share unit plan is a company program that grants employees or directors bookkeeping claims that mirror ownership of company stock, usually paid out in actual shares or cash after meeting time-based or performance conditions. Investors care because these plans affect future share counts and company costs—like promises to give slices of the corporate pie later—which can dilute existing owners and influence management incentives and long-term performance.

NI 51-102 – Continuous Disclosure Obligations regulatory

"REPORT OF VOTING RESULTS NI 51-102 – Continuous Disclosure Obligations, Section 11.3"

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 April 2026

TRANSALTA CORPORATION

(Translation of registrant’s name into English)

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

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F____         Form 40-F X

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ____

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ____

1

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
By:			/s/ Nancy Brennan
			Nancy Brennan Executive Vice President, Chief Legal and External Affairs Officer and Corporate Secretary

Date: April 30, 2026

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EXHIBIT INDEX

99.1    Report of Voting Results for TransAlta Corporation Annual and Special Meeting of Shareholders held April 30, 2026

3

Exhibit 99.1

TRANSALTA CORPORATION
(the “Corporation”)

Annual and Special Meeting of Shareholders
(the “Meeting”)

April 30, 2026

REPORT OF VOTING RESULTS

NI 51-102 – Continuous Disclosure Obligations, Section 11.3

Matters Voted Upon

The total number of common shares represented by shareholders present at the Meeting and by proxy was 188,939,751 representing 63.55% of the Corporation’s outstanding common shares.

1.Election of Directors

The nine director nominees proposed by management were elected. The votes by ballot were received as follows:

Nominee			Votes For			Per cent			Against			Per cent
Brian Baker			169,367,796			92.54			13,662,120			7.46
John P. Dielwart			181,971,364			99.42			1,058,552			0.58
Laura W. Folse			182,079,603			99.48			950,310			0.52
Joel E. Hunter			182,377,197			99.64			652,249			0.36
Thomas M. O’Flynn			182,117,078			99.50			912,838			0.50
Bryan D. Pinney			181,353,532			99.08			1,676,382			0.92
James Reid			182,367,358			99.64			662,558			0.36
Manjit K. Sharma			182,312,612			99.61			717,302			0.39
Sandra R. Sharman			181,766,236			99.31			1,261,882			0.69

2.Appointment of Auditors

The appointment of Ernst & Young LLP to serve as the auditors for 2026 was approved. The votes by ballot were received as follows:

Votes For			Per cent			Withheld			Per cent
187,406,979			99.19			1,532,770			0.81

1

3.Advisory Vote on Executive Compensation

The non-binding advisory vote to accept the Corporation's approach to executive compensation was approved. The votes by ballot were received as follows:

Votes For			Per cent			Against			Per cent
176,968,517			96.69			6,061,396			3.31

4.Increase in Common Shares Reserved for Issuance under Share Unit Plan

The resolution approving the increase in the number of common shares reserved for issuance under the Corporation’s Share Unit Plan was approved. The votes by ballot were received as follows:

Votes For			Per cent			Against			Per cent
186,169,941			98.53			2,769,806			1.47

2

FAQ

What percentage of TransAlta (TAC) shares were represented at the 2026 shareholder meeting?

A total of 188,939,751 TransAlta common shares were represented at the April 30, 2026 meeting, equal to 63.55% of outstanding shares. This indicates a solid level of shareholder participation in key governance decisions.

Were TransAlta (TAC) director nominees elected at the April 30, 2026 meeting?

Yes, all nine TransAlta director nominees proposed by management were elected. Each nominee received strong support, with vote levels ranging from 92.54% to 99.64% of votes cast in favour, confirming broad shareholder backing for the board.

Which auditor did TransAlta (TAC) shareholders approve for 2026?

Shareholders approved Ernst & Young LLP as TransAlta’s auditors for 2026. The appointment received 187,406,979 votes for and 1,532,770 votes withheld, which corresponds to 99.19% support and 0.81% withheld among votes cast.

How did TransAlta (TAC) shareholders vote on executive compensation in 2026?

TransAlta shareholders approved the non-binding advisory vote on the company’s executive compensation approach. The resolution received 176,968,517 votes for (96.69%) and 6,061,396 votes against (3.31%), indicating strong support for current pay practices.

Did TransAlta (TAC) approve an increase in shares for its Share Unit Plan?

Yes, shareholders approved increasing the number of common shares reserved for issuance under TransAlta’s Share Unit Plan. The resolution received 186,169,941 votes for (98.53%) and 2,769,806 votes against (1.47%), authorizing a larger equity incentive pool.

Filing Exhibits & Attachments

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