TransAlta Corporation (TAC)

Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

TransAlta Announces Closing of $350 Million Bought Deal Offering of Common Shares

CALGARY, Alberta, June 09, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX:...

Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

Form SUPPL - Voluntary Supplemental Material by Foreign Issuers [Section 11(a)]

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

TransAlta Announces the Acquisition of Two Fully-Contracted Gas Assets in Colorado and Concurrent $350 Million Bought Deal Offering of Common Shares

The short form base shelf prospectus is accessible, and the final prospectus supplement will be accessible...

Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors

Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

TransAlta Reports First Quarter Results and Reaffirms Annual Guidance

CALGARY, Alberta, May 06, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX: TA...

TransAlta Corporation Announces Results of the 2026 Annual and Special Meeting of Shareholders and Election of all Directors

CALGARY, Alberta, April 30, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TSX: TA) (NYSE: TAC) ("TransAlta...

TransAlta Declares Dividends

CALGARY, Alberta, April 29, 2026 (GLOBE NEWSWIRE) -- The Board of Directors of TransAlta Corporation (TSX:...