TransAlta Corporation (TAC)

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

TransAlta to Host Second Quarter 2026 Results Conference Call

CALGARY, Alberta, June 30, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX:TA...

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

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

CALGARY, Alberta, June 15, 2026 (GLOBE NEWSWIRE) -- TransAlta Corporation (TransAlta or the Company) (TSX:...

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]