Welcome to our dedicated page for TransAlta SEC filings (Ticker: TAC), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The TransAlta Corporation (TAC) SEC filings page on Stock Titan provides access to the company’s regulatory disclosures as a foreign private issuer in the United States. TransAlta files under the Securities Exchange Act of 1934 using Form 40-F for annual reporting and furnishes current information on Form 6-K. These filings complement the company’s Canadian disclosures and offer investors a centralized view of material developments.
Recent Form 6-K submissions include items such as dividend declarations, notices related to plant operations, long-term agreements, acquisitions, underwriting agreements and supplemental indentures. Examples include filings describing the planned temporary mothballing of Sheerness Unit 1, a Department of Energy order regarding Centralia Unit 2, a long-term agreement to enable coal-to-gas conversion at Centralia, and a definitive agreement to acquire a 310 megawatt contracted Ontario gas portfolio. Other 6-Ks incorporate by reference documents like management’s discussion and analysis, interim financial statements, consents of auditors and transaction-related agreements.
For a power producer with multiple business segments—Hydro, Wind & Solar, Gas, Energy Transition, Energy Marketing and Corporate—these filings help explain how TransAlta’s portfolio, capital structure and risk profile change over time. Investors can review segment performance, non-IFRS measures, credit facility arrangements and other details through documents referenced in the SEC submissions.
On Stock Titan, SEC filings for TAC are updated as they appear on EDGAR, and AI-powered tools summarize key points to make lengthy documents more accessible. Users can quickly see what each filing covers, whether it relates to financing, asset transactions, operational changes or governance matters, and then drill down into the full text as needed. This page is a resource for anyone analyzing TransAlta’s regulatory history, financial reporting and material corporate events.
TransAlta Corporation reported the results of its 2026 Annual and Special Meeting of Shareholders. Shareholders representing 188,939,751 common shares, or 63.55 per cent of outstanding shares, were present in person or by proxy.
All nine management director nominees were elected, each receiving more than 92 per cent support, with several above 99 per cent. Shareholders approved the appointment of Ernst & Young LLP as auditors for 2026 with 99.19 per cent of votes cast in favour.
The non-binding advisory vote on the Corporation’s approach to executive compensation passed with 96.69 per cent support. Shareholders also approved increasing the number of common shares reserved for issuance under the Share Unit Plan, with 98.53 per cent of votes cast in favour.
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.
TransAlta Corporation declared quarterly dividends on several series of its Cumulative Redeemable Rate Reset First Preferred Shares for the period from March 31, 2026 up to but excluding June 30, 2026. The dividends are payable on June 30, 2026 to shareholders of record on June 1, 2026.
Declared quarterly dividends include Series A at a 4.782% rate, or $0.29888 per share, Series B at 4.221% or $0.26309 per share, Series C at 5.854% or $0.36588 per share, Series D at 5.291% or $0.32978 per share, Series E at 6.894% or $0.43088 per share, and Series G at 6.773% or $0.42331 per share. All amounts are in Canadian dollars, and the Series B and Series D dividends are based on floating rates that reset every quarter.
TransAlta Corporation is reshaping its senior leadership team. The company appointed Mike Politeski as Executive Vice President, Finance and Chief Financial Officer, effective May 1, 2026, and Grant Arnold as Executive Vice President, Growth and Chief Commercial Officer, effective May 6, 2026.
These appointments align with current CFO Joel Hunter becoming President and CEO on April 30, 2026, following the retirement of President and CEO John Kousinioris. Politeski brings over 25 years of finance and capital markets experience, while Arnold adds more than 30 years in power generation and energy, including leadership in renewables growth. TransAlta highlights this refreshed team as central to executing its strategy of disciplined growth, commercial development and operational excellence across its long-standing power generation business.
TransAlta Corporation will hold its 2026 annual and special meeting of shareholders on April 30, 2026 at 11:30 a.m. Mountain Time in a virtual-only format via live audio webcast. The management proxy circular provides details on meeting business and voting.
TransAlta will release its first quarter 2026 results before markets open on May 6, 2026, followed by a conference call and webcast at 9:00 a.m. Mountain Time for investors, analysts, media and other interested parties.
TransAlta Corporation is convening its 2026 annual and special shareholder meeting on April 30, 2026 at 11:30 a.m. Mountain Time in a virtual-only format. Holders of common shares as of March 12, 2026 can attend online, ask questions and vote.
Shareholders will elect nine directors, consider reappointing Ernst & Young LLP as auditors, vote on a non-binding advisory resolution on executive compensation, and decide on an increase in common shares issuable under the Share Unit Plan. The materials are delivered primarily via electronic Notice-and-Access, with paper copies available on request.
The filing also highlights leadership changes: President and CEO John Kousinioris will retire on April 30, 2026, and current CFO Joel Hunter will become President and CEO and, subject to election, join the Board on that date.
TransAlta Corporation filed a Form 6-K highlighting its 2026 Investor Day, where leaders outlined expectations for Alberta’s power market, strategy and growth plans. Management anticipates the Alberta market will recover meaningfully through the end of the decade, helped by rising demand including new data centre load.
The company emphasized that its existing assets and development platform position it to capture this growth, including a recently announced memorandum of understanding to supply power and land for a CPP Investments and Brookfield data centre project. Priorities include maximizing value from the base business, selectively investing in opportunities that enhance contracted cash flows, and pursuing strategic M&A.
TransAlta is focusing on executing Alberta data centre and Centralia opportunities and building a refined project pipeline for later in the decade. It expects meaningful Adjusted EBITDA and free cash flow growth to 2029. The filing also notes the leadership transition as Joel Hunter becomes President and Chief Executive Officer as John Kousinioris retires.
TransAlta Corporation reports final conversion results for its Series A and Series B preferred shares effective March 31, 2026. None of the 9,629,913 outstanding Cumulative Redeemable Rate Reset First Preferred Shares, Series A will convert into Series B shares.
In contrast, 1,148,549 of the 2,370,087 outstanding Cumulative Redeemable Floating Rate First Preferred Shares, Series B will convert on a one-for-one basis into Series A shares. After these conversions, 10,778,462 Series A shares and 1,221,538 Series B shares will be issued and outstanding.
TransAlta Corporation reports final conversion results for its Series A and Series B preferred shares effective March 31, 2026. None of the 9,629,913 outstanding Cumulative Redeemable Rate Reset First Preferred Shares, Series A will convert into Series B shares.
In contrast, 1,148,549 of the 2,370,087 outstanding Cumulative Redeemable Floating Rate First Preferred Shares, Series B will convert on a one-for-one basis into Series A shares. After these conversions, 10,778,462 Series A shares and 1,221,538 Series B shares will be issued and outstanding.
TransAlta Corporation reports that its subsidiary, TransAlta Centralia Generation LLC, has received an order from the U.S. Department of Energy requiring Centralia Unit 2 in Washington State to remain available for operation for 90 days, until June 14, 2026.
The company is evaluating the order and plans to work with state and federal governments in relation to it. TransAlta describes itself as one of Canada’s largest publicly traded power generators, with operations in Canada, the United States and Western Australia.
TransAlta Corporation reports that its subsidiary, TransAlta Centralia Generation LLC, has received an order from the U.S. Department of Energy requiring Centralia Unit 2 in Washington State to remain available for operation for 90 days, until June 14, 2026.
The company is evaluating the order and plans to work with state and federal governments in relation to it. TransAlta describes itself as one of Canada’s largest publicly traded power generators, with operations in Canada, the United States and Western Australia.
TransAlta Corporation is keeping its Series A and Series B preferred shares outstanding and will not redeem them on March 31, 2026. Holders of the Series A shares can either keep their fixed-rate shares or convert them one-for-one into floating-rate Series B shares on that date, and Series B holders have the mirror choice.
There are 9,629,913 Series A shares and 2,370,087 Series B shares outstanding. Series A will pay a fixed quarterly dividend of 1.19550% (4.78200% annually) from March 31, 2026 to March 31, 2031. Series B will pay a floating quarterly dividend of 1.05236% (4.22100% annually) from March 31, 2026 to June 30, 2026, resetting every quarter. Investors must instruct their brokers by March 16, 2026 to elect conversions, and similar conversion opportunities will recur every five years while the shares remain outstanding.