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 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 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.
TransAlta Corporation filed a report announcing it will host an Investor Day in Toronto on Monday, March 23, 2026, with the formal presentation starting at 9:00 a.m. ET. The event will be held in a hybrid format, allowing both in-person attendance and a live webcast.
During Investor Day, TransAlta plans to give an in-depth overview of its strategic priorities, long-term plan, financial outlook and growth opportunities. A recording of the webcast and the presentation will be made available on the Investor Centre section of the company’s website for those unable to attend live.
TransAlta Corporation has entered into a Memorandum of Understanding with CPP Investments and Brookfield to advance a large-scale data centre development at its Keephills site in Alberta. TransAlta would act as the exclusive site and power provider for the project.
The framework envisions phased development, starting with an initial long-term power purchase agreement for approximately 230 MW and evaluating additional phases that could bring total data centre load up to 1 GW. All phases remain subject to regulatory approvals and the parties reaching definitive binding agreements.
TransAlta Corporation reported softer 2025 financial results but solid cash generation and outlined a detailed 2026 outlook. Adjusted EBITDA was $1,104 million versus $1,255 million in 2024, and free cash flow was $514 million, or $1.73 per share. The company posted a net loss attributable to common shareholders of $190 million, compared to net earnings of $177 million in 2024, even as fleet availability improved to 92.3%.
Management announced an 8% dividend increase to an annualized $0.28 per share and guided 2026 adjusted EBITDA to $950–$1,050 million and FCF to $350–$450 million. Strategically, TransAlta signed a data-centre MOU at its Keephills site with an initial 230 MW PPA and potential expansion up to 1 GW, agreed a long-term tolling deal to convert the 700 MW Centralia Unit 2 from coal to gas with fixed capacity payments through 2044, acquired Far North for $95 million adding 310 MW in Ontario, and refinanced US$400 million of 7.8% senior notes with new 5.9% 2034 notes. The company also highlighted a 76% reduction in Scope 1 and 2 emissions since 2015 and continued optimization of its Alberta portfolio and hedging strategy.
TransAlta Corporation reports 2025 revenue of $2.4 billion, Adjusted EBITDA of $1.1 billion and free cash flow of $514 million, slightly above its guidance midpoint despite lower Alberta and Mid‑Columbia power prices.
The company advanced several strategic moves, including a long‑term tolling agreement to convert Centralia Unit 2 from coal to natural gas, the $95 million acquisition of Far North adding 310 MW in Ontario, and a data centre development MOU at its Keephills site. It raised the 2026 annual common dividend to $0.28 per share and set 2026 guidance at $950 million–$1,050 million of Adjusted EBITDA and $350 million–$450 million of free cash flow, below 2025 levels as Centralia coal operations wind down. CEO John Kousinioris plans to retire April 30, 2026, with CFO Joel Hunter designated as his successor.
TransAlta Corporation filed its annual report on Form 40-F, incorporating its Consolidated Audited Annual Financial Statements and Management's Discussion & Analysis for the year ended
Royal Bank of Canada has disclosed a significant ownership stake in TransAlta Corp common stock. The bank reports beneficial ownership of 22,956,719 shares, representing 7.74% of the outstanding common stock. All of these shares are held with shared voting and shared dispositive power, while Royal Bank of Canada has no sole voting or dispositive power.
The filing states that the securities were acquired and are held in the ordinary course of business and are not intended to change or influence control of TransAlta. Several affiliated entities, including RBC Capital Markets, RBC Global Asset Management and others, are identified as the subsidiaries through which these securities are held.
FMR LLC has filed an amended Schedule 13G reporting a significant passive ownership stake in TransAlta Corporation. FMR and related reporting person Abigail P. Johnson beneficially own 23,706,888 shares of TransAlta common stock, representing 8.0% of the class.
FMR holds sole voting power over 23,556,337 shares and sole dispositive power over all 23,706,888 shares, with no shared voting or dispositive power. The filing states the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of TransAlta. One or more other persons may receive dividends or sale proceeds, but no such person holds more than 5% of the outstanding common stock.