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.
TransAlta Corporation filings document the company’s U.S. disclosure record as a Canadian foreign issuer reporting on Form 6-K and Form 40-F. The filings include management discussion and analysis, IFRS interim financial statements and current reports covering operating results, cash flow, fleet performance, hedging, contracted generation and segment activity across hydro, wind and solar, gas and energy-transition operations.
TransAlta’s regulatory documents also record shareholder meeting materials, proxy circulars, voting results, director elections, auditor appointments, executive compensation votes and share unit plan matters. Other filings cover preferred share dividends, preferred share conversion results, leadership appointments and incorporation of certain exhibits into registration statements.
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 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 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 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 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 Dec. 31, 2025. Management concluded its disclosure controls and internal control over financial reporting were effective as of Dec. 31, 2025, and Ernst & Young LLP issued an attestation report. The filing states 296,717,495 common shares issued and outstanding as of Dec. 31, 2025, and discloses principal accountant fees of $5,133,976 for 2025 and $5,396,719 for 2024 (Canadian dollars).
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 Dec. 31, 2025. Management concluded its disclosure controls and internal control over financial reporting were effective as of Dec. 31, 2025, and Ernst & Young LLP issued an attestation report. The filing states 296,717,495 common shares issued and outstanding as of Dec. 31, 2025, and discloses principal accountant fees of $5,133,976 for 2025 and $5,396,719 for 2024 (Canadian dollars).
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 Dec. 31, 2025. Management concluded its disclosure controls and internal control over financial reporting were effective as of Dec. 31, 2025, and Ernst & Young LLP issued an attestation report. The filing states 296,717,495 common shares issued and outstanding as of Dec. 31, 2025, and discloses principal accountant fees of $5,133,976 for 2025 and $5,396,719 for 2024 (Canadian dollars).
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.
TransAlta Corporation has filed a Form 6-K announcing logistics for its upcoming earnings communication. The company will release its fourth quarter and full year 2025 results before markets open on February 27, 2026, followed by a conference call and webcast at 9:00 a.m. Mountain Time (11:00 a.m. ET).
The call will cover both the results and TransAlta’s 2026 annual guidance and is open to investors, analysts, media and other interested parties via online registration and webcast. Replay and transcript access will be provided through the company’s website.
TransAlta Corporation filed a Form 6-K as a foreign private issuer for December 2025. The filing states that Exhibit 99.1, a Second Supplemental Indenture dated December 22, 2025, is incorporated by reference into TransAlta’s existing Form F-10 shelf registration statement.
TransAlta Corporation filed a Form 6-K as a foreign private issuer for December 2025. The report indicates that the company furnished an exhibit titled “TransAlta Provides Notice to Mothball Sheerness Unit 1,” signaling a planned change in the status of that generating unit. The filing was signed by Joel Hunter, Executive Vice President Finance and Chief Financial Officer.
TransAlta Corporation filed a report as a foreign private issuer. The filing references an exhibit describing that the Department of Energy has mandated that Centralia Unit 2 remain available for operation for 90 days. The report is signed on behalf of TransAlta by Joel Hunter, Executive Vice President Finance and Chief Financial Officer.
TransAlta Corporation filed a Form 6-K as a foreign private issuer for December 2025, primarily to submit an Underwriting Agreement dated December 11, 2025 as Exhibit 99.1. This exhibit is incorporated by reference into TransAlta’s Form F-10 registration statement (File No. 333-292019), with the report signed by Corporate Secretary Kelly Galloway.