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 Corp (TAC): Schedule 13G/A (Amendment No. 1) — FMR LLC and Abigail P. Johnson reported beneficial ownership of 22,621,020 common shares of TransAlta, representing 7.6% of the class as of 09/30/2025.
FMR LLC reports sole voting power over 22,461,169 shares and sole dispositive power over 22,621,020 shares; Abigail P. Johnson reports sole dispositive power over 22,621,020 shares and no voting power. The filing certifies the holdings were acquired and are held in the ordinary course and not for the purpose of changing or influencing control.
TransAlta Corporation furnished a Form 6-K for October 2025, indicating it files annual reports on Form 40-F. The report was signed by Executive Vice President Finance and Chief Financial Officer Joel Hunter on October 22, 2025. The submission includes Exhibit 99.1 titled "TransAlta Declares Dividends," providing an update on dividend actions via the accompanying exhibit.
TransAlta Corporation submitted a Form 6-K as a foreign private issuer. The filing is administrative and primarily points to an exhibit titled “TransAlta to Host Third Quarter 2025 Results Conference Call,” indicating preparation to discuss its third-quarter 2025 results with investors.
Bank of Nova Scotia reported beneficial ownership of 13,865,341 shares of TransAlta Corp., representing 4.67% of the outstanding common stock as of 09/30/2025. The filing, submitted as a Schedule 13G/A, shows the bank holds sole voting and sole dispositive power over these shares and classifies itself as a parent holding company. The report states the ownership is below the 5% threshold for required Schedule 13D treatment, and no group members, subsidiaries, or additional parties are identified as holding or acquiring the securities on the bank’s behalf. The signing official certifies comparability of foreign regulatory oversight and agrees to provide additional disclosure to the Commission if requested.
TransAlta Corporation filed a Form 6-K as a foreign private issuer that files annual reports under Form 40-F. The report, signed by Executive Vice President Finance and Chief Financial Officer Joel Hunter on September 18, 2025, includes Exhibit 99.1 titled “TransAlta to Host 2025 Investor Day.”
The Goldman Sachs Group, Inc. and Goldman Sachs & Co. LLC filed a Schedule 13G reporting beneficial ownership of 16,350,772.73 shares of TransAlta Corporation common stock, representing 5.5% of the class as of the 06/30/2025 event date.
The filing reports 0 sole voting and dispositive power and 16,350,772.73 shares of shared voting and shared dispositive power. The submission includes a joint filing agreement (Exhibit 99.1) and identifies Goldman Sachs & Co. LLC as a subsidiary that may be deemed to beneficially own the securities (Exhibit 99.2). The signatory certified the holdings are held in the ordinary course and not to influence control; signatures dated 07/17/2025.