TRANSALTA CORP

Symbol
TAC on NYSE, TACPF, TSLTF on OTC
Business address
Transalta Place, 1400, 1100 1 St Street S.E., Calgary, Alberta, Canada, T2G 1B1
Fiscal year end
31 December
TRANSALTA CORP has filed 1,043 SEC EDGAR filings since 26 Oct 2001

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
6-K Open Document Open Filing 6-K 22 Dec 2025 22 Dec 2025 001-15214
6-K Open Document Open Filing FORM 6-K 18 Dec 2025 18 Dec 2025 001-15214
6-K Open Document Open Filing FORM 6-K 17 Dec 2025 17 Dec 2025 001-15214
6-K Open Document Open Filing 6-K 15 Dec 2025 15 Dec 2025 001-15214
6-K Open Document Open Filing FORM 6-K 15 Dec 2025 12 Dec 2025 001-15214
6-K Open Document Open Filing 6-K 15 Dec 2025 11 Dec 2025 001-15214
SUPPL Open Document Open Filing SUPPL 12 Dec 2025 333-292019
FWP Open Document Open Filing FWP 12 Dec 2025 333-292019
SUPPL Open Document Open Filing SUPPL 11 Dec 2025 333-292019
6-K Open Document Open Filing FORM 6-K 09 Dec 2025 09 Dec 2025 001-15214
F-X Open Document Open Filing F-X 09 Dec 2025 333-292019
F-10EF Open Document | Data Open Filing F-10EF 09 Dec 2025 333-292019
6-K Open Document Open Filing FORM 6-K 17 Nov 2025 17 Nov 2025 001-15214
SCHEDULE 13G/A Open Document Open Filing 14 Nov 2025 005-79749
SCHEDULE 13G/A Open Document Open Filing 13 Nov 2025 005-79749
SCHEDULE 13G/A Open Document Open Filing 07 Nov 2025 005-79749
6-K Open Document Open Filing FORM 6-K 06 Nov 2025 06 Nov 2025 001-15214
6-K Open Document Open Filing 6-K 06 Nov 2025 30 Sep 2025 001-15214
6-K Open Document Open Filing 6-K 06 Nov 2025 06 Nov 2025 001-15214
SCHEDULE 13G/A Open Document Open Filing 05 Nov 2025 005-79749
6-K Open Document Open Filing FORM 6-K 22 Oct 2025 22 Oct 2025 001-15214
6-K Open Document Open Filing FORM 6-K 08 Oct 2025 08 Oct 2025 001-15214
SCHEDULE 13G/A Open Document Open Filing 07 Oct 2025 005-79749
6-K Open Document Open Filing FORM 6-K 18 Sep 2025 18 Sep 2025 001-15214
SCHEDULE 13G Open Document Open Filing 14 Aug 2025 005-79749
SCHEDULE 13G Open Document Open Filing 06 Aug 2025 005-79749
6-K Open Document Open Filing FORM 6-K 01 Aug 2025 01 Aug 2025 001-15214
6-K Open Document Open Filing 6-K 01 Aug 2025 30 Jun 2025 001-15214
6-K Open Document Open Filing FORM 6-K 30 Jul 2025 29 Jul 2025 001-15214
SCHEDULE 13G Open Document Open Filing 09 Jul 2025 005-79749
6-K Open Document Open Filing FORM 6-K 03 Jul 2025 03 Jul 2025 001-15214
6-K Open Document Open Filing FORM 6-K 28 May 2025 27 May 2025 001-15214
SCHEDULE 13G Open Document Open Filing 07 May 2025 005-79749
6-K Open Document Open Filing FORM 6-K 07 May 2025 07 May 2025 001-15214
6-K Open Document Open Filing 6-K 07 May 2025 31 Mar 2025 001-15214
6-K Open Document Open Filing FORM 6-K 24 Apr 2025 24 Apr 2025 001-15214
6-K Open Document Open Filing 6-K 24 Apr 2025 24 Apr 2025 001-15214
6-K Open Document Open Filing FORM 6-K 23 Apr 2025 23 Apr 2025 001-15214
SCHEDULE 13G/A Open Document Open Filing 15 Apr 2025 005-79749
6-K Open Document Open Filing FORM 6-K 10 Apr 2025 08 Apr 2025 001-15214
6-K Open Document Open Filing FORM 6-K 31 Mar 2025 28 Mar 2025 001-15214
6-K Open Document Open Filing FORM 6-K 26 Mar 2025 26 Mar 2025 001-15214
6-K Open Document Open Filing 6-K 25 Mar 2025 07 Mar 2025 001-15214
SCHEDULE 13G Open Document Open Filing 25 Feb 2025 005-79749
6-K Open Document Open Filing FORM 6-K 20 Feb 2025 20 Feb 2025 001-15214
6-K Open Document Open Filing 6-K 20 Feb 2025 31 Dec 2024 001-15214
40-F Open Document | Data Open Filing 40-F 20 Feb 2025 31 Dec 2024 001-15214
SCHEDULE 13G/A Open Document Open Filing 12 Feb 2025 005-79749
6-K Open Document Open Filing FORM 6-K 16 Jan 2025 16 Jan 2025 001-15214
SCHEDULE 13D/A Open Document Open Filing 08 Jan 2025 005-79749
6-K Open Document Open Filing FORM 6-K 10 Dec 2024 09 Dec 2024 001-15214
6-K Open Document Open Filing FORM 6-K 04 Dec 2024 04 Dec 2024 001-15214
6-K Open Document Open Filing FORM 6-K 14 Nov 2024 14 Nov 2024 001-15214
6-K Open Document Open Filing FORM 6-K 05 Nov 2024 05 Nov 2024 001-15214
6-K Open Document Open Filing 6-K 05 Nov 2024 30 Sep 2024 001-15214
6-K Open Document Open Filing FORM 6-K 23 Oct 2024 23 Oct 2024 001-15214
6-K Open Document Open Filing FORM 6-K 04 Oct 2024 04 Oct 2024 001-15214
6-K Open Document Open Filing FORM 6-K 17 Sep 2024 17 Sep 2024 001-15214
6-K Open Document Open Filing FORM 6-K 03 Sep 2024 03 Sep 2024 001-15214
6-K Open Document Open Filing FORM 6-K 22 Aug 2024 22 Aug 2024 001-15214
6-K Open Document Open Filing FORM 6-K 01 Aug 2024 01 Aug 2024 001-15214
6-K Open Document Open Filing 6-K 01 Aug 2024 30 Jun 2024 001-15214
6-K Open Document Open Filing FORM 6-K 30 Jul 2024 29 Jul 2024 001-15214
6-K Open Document Open Filing FORM 6-K 05 Jul 2024 04 Jul 2024 001-15214
6-K Open Document Open Filing FORM 6-K 25 Jun 2024 24 Jun 2024 001-15214
6-K Open Document Open Filing FORM 6-K 28 May 2024 27 May 2024 001-15214
6-K Open Document Open Filing FORM 6-K 21 May 2024 21 May 2024 001-15214
6-K Open Document Open Filing FORM 6-K 03 May 2024 03 May 2024 001-15214
6-K Open Document Open Filing 6-K 03 May 2024 31 Mar 2024 001-15214
6-K Open Document Open Filing 6-K 26 Apr 2024 30 Apr 2024 001-15214
6-K Open Document Open Filing FORM 6-K 25 Apr 2024 25 Apr 2024 001-15214
6-K Open Document Open Filing FORM 6-K 25 Apr 2024 24 Apr 2024 001-15214
6-K Open Document Open Filing FORM 6-K 24 Apr 2024 24 Apr 2024 001-15214
6-K Open Document Open Filing FORM 6-K 19 Apr 2024 19 Apr 2024 001-15214
6-K Open Document Open Filing FORM 6-K 05 Apr 2024 28 Mar 2024 001-15214
6-K Open Document Open Filing FORM 6-K 22 Mar 2024 22 Mar 2024 001-15214
6-K Open Document Open Filing FORM 6-K 20 Mar 2024 15 Mar 2024 001-15214
6-K Open Document Open Filing FORM 6-K 23 Feb 2024 23 Feb 2024 001-15214
6-K Open Document Open Filing 6-K 23 Feb 2024 31 Dec 2023 001-15214
40-F Open Document | Data Open Filing 40-F 23 Feb 2024 31 Dec 2023 001-15214
SC 13G/A Open Document Open Filing SC 13G/A 09 Feb 2024 005-79749
6-K Open Document Open Filing FORM 6-K 22 Jan 2024 22 Jan 2024 001-15214
6-K Open Document Open Filing 6-K 04 Jan 2024 03 Jan 2024 001-15214
6-K Open Document Open Filing FORM 6-K 19 Dec 2023 19 Dec 2023 001-15214
6-K Open Document Open Filing FORM 6-K 13 Dec 2023 11 Dec 2023 001-15214
6-K Open Document Open Filing FORM 6-K 24 Nov 2023 22 Nov 2023 001-15214
6-K Open Document Open Filing FORM 6-K 24 Nov 2023 21 Nov 2023 001-15214
SC 13D/A Open Document Open Filing SC 13D/A 09 Nov 2023 005-79749
6-K Open Document Open Filing FORM 6-K 07 Nov 2023 07 Nov 2023 001-15214
6-K Open Document Open Filing 6-K 07 Nov 2023 30 Sep 2023 001-15214
6-K Open Document Open Filing FORM 6-K 02 Nov 2023 02 Nov 2023 001-15214
6-K Open Document Open Filing FORM 6-K 02 Nov 2023 30 Oct 2023 001-15214
6-K Open Document Open Filing FORM 6-K 26 Oct 2023 19 Oct 2023 001-15214
6-K Open Document Open Filing FORM 6-K 13 Oct 2023 11 Oct 2023 001-15214
6-K Open Document Open Filing FORM 6-K 12 Oct 2023 11 Oct 2023 001-15214
6-K Open Document Open Filing FORM 6-K 05 Oct 2023 05 Oct 2023 001-15214
6-K Open Document Open Filing FORM 6-K 14 Sep 2023 14 Sep 2023 001-15214
6-K Open Document Open Filing FORM 6-K 08 Aug 2023 04 Aug 2023 001-15214
6-K Open Document Open Filing 6-K 04 Aug 2023 30 Jun 2023 001-15214
6-K Open Document Open Filing FORM 6-K 27 Jul 2023 27 Jul 2023 001-15214
6-K Open Document Open Filing FORM 6-K 18 Jul 2023 17 Jul 2023 001-15214
6-K Open Document Open Filing FORM 6-K 11 Jul 2023 11 Jul 2023 001-15214
6-K Open Document Open Filing FORM 6-K 05 Jul 2023 05 Jul 2023 001-15214
6-K Open Document Open Filing FORM 6-K 26 May 2023 26 May 2023 001-15214
EFFECT Open Document Open Filing 18 May 2023 333-271953
F-X Open Document Open Filing F-X 16 May 2023 333-271953
F-10 Open Document Open Filing F-10 16 May 2023 333-271953
6-K Open Document Open Filing 6-K 11 May 2023 11 May 2023 001-15214
6-K Open Document Open Filing FORM 6-K 05 May 2023 05 May 2023 001-15214
6-K Open Document Open Filing 6-K 05 May 2023 31 Mar 2023 001-15214
6-K Open Document Open Filing 6-K 01 May 2023 28 Apr 2023 001-15214
6-K Open Document Open Filing FORM 6-K 01 May 2023 28 Apr 2023 001-15214
6-K Open Document Open Filing FORM 6-K 28 Apr 2023 27 Apr 2023 001-15214
6-K Open Document Open Filing FORM 6-K 12 Apr 2023 11 Apr 2023 001-15214
6-K Open Document Open Filing FORM 6-K 28 Mar 2023 27 Mar 2023 001-15214
6-K Open Document Open Filing 6-K 24 Mar 2023 23 Mar 2023 001-15214
6-K/A Open Document Open Filing 6-K/A 10 Mar 2023 31 Dec 2022 001-15214
6-K/A Open Document Open Filing 6-K/A 24 Feb 2023 31 Dec 2022 001-15214
6-K Open Document Open Filing FORM 6-K 23 Feb 2023 23 Feb 2023 001-15214
6-K Open Document Open Filing 6-K 23 Feb 2023 31 Dec 2022 001-15214
40-F Open Document | Data Open Filing 40-F 23 Feb 2023 31 Dec 2022 001-15214
6-K Open Document Open Filing FORM 6-K 17 Feb 2023 16 Feb 2023 001-15214
SC 13G/A Open Document Open Filing AMENDMENT NO. 6 14 Feb 2023 005-79749
SC 13G/A Open Document Open Filing SC 13G/A 10 Feb 2023 005-79749
SC 13G/A Open Document Open Filing BANK OF MONTREAL 06 Feb 2023 005-79749
6-K Open Document Open Filing 6-K 24 Jan 2023 23 Jan 2023 001-15214
6-K Open Document Open Filing FORM 6-K 24 Jan 2023 23 Jan 2023 001-15214
6-K Open Document Open Filing FORM 6-K 15 Dec 2022 15 Dec 2022 001-15214
6-K Open Document Open Filing FORM 6-K 13 Dec 2022 12 Dec 2022 001-15214
6-K Open Document Open Filing 6-K 18 Nov 2022 17 Nov 2022 001-15214
6-K Open Document Open Filing 6-K 16 Nov 2022 15 Nov 2022 001-15214
SUPPL Open Document Open Filing SUPPL 16 Nov 2022 333-257098
6-K Open Document Open Filing FORM 6-K 15 Nov 2022 14 Nov 2022 001-15214
FWP Open Document Open Filing FWP 14 Nov 2022 333-257098
SUPPL Open Document Open Filing SUPPL 14 Nov 2022 333-257098
6-K Open Document Open Filing FORM 6-K 14 Nov 2022 14 Nov 2022 001-15214
6-K Open Document Open Filing FORM 6-K 08 Nov 2022 08 Nov 2022 001-15214
6-K Open Document Open Filing FORM 6-K 08 Nov 2022 08 Nov 2022 001-15214
6-K Open Document Open Filing 6-K 08 Nov 2022 30 Sep 2022 001-15214
6-K Open Document Open Filing FORM 6-K 12 Oct 2022 11 Oct 2022 001-15214
6-K Open Document Open Filing FORM 6-K 21 Sep 2022 21 Sep 2022 001-15214
6-K Open Document Open Filing FORM 6-K 02 Sep 2022 31 Aug 2022 001-15214
6-K Open Document Open Filing FORM 6-K 05 Aug 2022 05 Aug 2022 001-15214
6-K Open Document Open Filing 6-K 05 Aug 2022 30 Jun 2022 001-15214
6-K Open Document Open Filing FORM 6-K 28 Jul 2022 27 Jul 2022 001-15214
6-K Open Document Open Filing FORM 6-K 12 Jul 2022 12 Jul 2022 001-15214
6-K Open Document Open Filing FORM 6-K 12 Jul 2022 06 Jul 2022 001-15214
6-K Open Document Open Filing FORM 6-K 21 Jun 2022 20 Jun 2022 001-15214
6-K Open Document Open Filing FORM 6-K 17 Jun 2022 16 Jun 2022 001-15214
6-K Open Document Open Filing FORM 6-K 10 Jun 2022 09 Jun 2022 001-15214
6-K Open Document Open Filing FORM 6-K 31 May 2022 31 May 2022 001-15214
6-K Open Document Open Filing FORM 6-K 24 May 2022 24 May 2022 001-15214
6-K Open Document Open Filing FORM 6-K 06 May 2022 06 May 2022 001-15214
6-K Open Document Open Filing 6-K 06 May 2022 31 Mar 2022 001-15214
SC 13G Open Document Open Filing SC 13G 03 May 2022 005-79749
6-K Open Document Open Filing FORM 6-K 02 May 2022 29 Apr 2022 001-15214
6-K Open Document Open Filing FORM 6-K 02 May 2022 29 Apr 2022 001-15214
6-K Open Document Open Filing FORM 6-K 29 Apr 2022 28 Apr 2022 001-15214
6-K Open Document Open Filing FORM 6-K 28 Apr 2022 27 Apr 2022 001-15214
6-K Open Document Open Filing FORM 6-K 15 Apr 2022 12 Apr 2022 001-15214
6-K Open Document Open Filing FORM 6-K 05 Apr 2022 05 Apr 2022 001-15214
6-K Open Document Open Filing FORM 6-K 25 Mar 2022 28 Apr 2022 001-15214
6-K Open Document Open Filing FORM 6-K 24 Mar 2022 23 Mar 2022 001-15214
6-K Open Document Open Filing 6-K 08 Mar 2022 31 Dec 2021 001-15214
6-K Open Document Open Filing FORM 6-K 24 Feb 2022 24 Feb 2022 001-15214
6-K Open Document Open Filing 6-K 24 Feb 2022 31 Dec 2021 001-15214
40-F Open Document | Data Open Filing 40-F 24 Feb 2022 31 Dec 2021 001-15214
SC 13G/A Open Document Open Filing BANK OF MONTREAL 15 Feb 2022 005-79749
SC 13G/A Open Document Open Filing AMENDMENT NO. 5 14 Feb 2022 005-79749
6-K Open Document Open Filing FORM 6-K 01 Feb 2022 01 Feb 2022 001-15214
6-K Open Document Open Filing FORM 6-K 24 Jan 2022 24 Jan 2022 001-15214
6-K Open Document Open Filing FORM 6-K 18 Jan 2022 18 Jan 2022 001-15214
6-K Open Document Open Filing FORM 6-K 29 Dec 2021 29 Dec 2021 001-15214
6-K Open Document Open Filing FORM 6-K 22 Dec 2021 22 Dec 2021 001-15214
6-K Open Document Open Filing FORM 6-K 15 Dec 2021 14 Dec 2021 001-15214
6-K Open Document Open Filing FORM 6-K 14 Dec 2021 13 Dec 2021 001-15214
S-8 Open Document Open Filing FORM S-8 10 Nov 2021 333-260935
6-K Open Document Open Filing FORM 6-K 09 Nov 2021 09 Nov 2021 001-15214
6-K Open Document Open Filing 6-K 09 Nov 2021 30 Sep 2021 001-15214
6-K Open Document Open Filing FORM 6-K 05 Nov 2021 05 Nov 2021 001-15214
6-K Open Document Open Filing FORM 6-K 02 Nov 2021 01 Nov 2021 001-15214
6-K Open Document Open Filing FORM 6-K 07 Oct 2021 06 Oct 2021 001-15214
6-K Open Document Open Filing FORM 6-K 30 Sep 2021 28 Sep 2021 001-15214
6-K Open Document Open Filing FORM 6-K 31 Aug 2021 31 Aug 2021 001-15214
6-K Open Document Open Filing FORM 6-K 10 Aug 2021 10 Aug 2021 001-15214
6-K Open Document Open Filing 6-K 10 Aug 2021 30 Jun 2021 001-15214
6-K Open Document Open Filing FORM 6-K 06 Aug 2021 05 Aug 2021 001-15214
6-K Open Document Open Filing FORM 6-K 19 Jul 2021 19 Jul 2021 001-15214
6-K Open Document Open Filing FORM 6-K 14 Jul 2021 13 Jul 2021 001-15214
EFFECT Open Document Open Filing 30 Jun 2021 333-257098
6-K Open Document Open Filing FORM 6-K 30 Jun 2021 30 Jun 2021 001-15214
F-10/A Open Document Open Filing F-10/A 29 Jun 2021 333-257098
F-X Open Document Open Filing F-X 15 Jun 2021 333-257098
F-10 Open Document Open Filing F-10 15 Jun 2021 333-257098
6-K Open Document Open Filing FORM 6-K 26 May 2021 25 May 2021 001-15214
6-K Open Document Open Filing FORM 6-K 13 May 2021 13 May 2021 001-15214
6-K Open Document Open Filing 6-K 13 May 2021 31 Mar 2021 001-15214
6-K Open Document Open Filing FORM 6-K 05 May 2021 04 May 2021 001-15214
6-K Open Document Open Filing FORM 6-K 04 May 2021 03 May 2021 001-15214
6-K Open Document Open Filing FORM 6-K 04 May 2021 03 May 2021 001-15214
6-K Open Document Open Filing FORM 6-K 03 May 2021 03 May 2021 001-15214
6-K Open Document Open Filing FORM 6-K 30 Apr 2021 29 Apr 2021 001-15214
6-K Open Document Open Filing FORM 6-K 22 Apr 2021 21 Apr 2021 001-15214
6-K Open Document Open Filing FORM 6-K 21 Apr 2021 20 Apr 2021 001-15214
6-K Open Document Open Filing FORM 6-K 30 Mar 2021 02 Mar 2021 001-15214
6-K/A Open Document Open Filing FORM 6-K/A 30 Mar 2021 04 May 2021 001-15214
6-K Open Document Open Filing FORM 6-K 29 Mar 2021 29 Mar 2021 001-15214
6-K Open Document Open Filing FORM 6-K 29 Mar 2021 04 May 2021 001-15214
6-K Open Document Open Filing FORM 6-K 19 Mar 2021 18 Mar 2021 001-15214
SC 13D/A Open Document Open Filing SC 13D/A 11 Mar 2021 005-79749
6-K Open Document Open Filing FORM 6-K 03 Mar 2021 03 Mar 2021 001-15214
6-K Open Document Open Filing 6-K 03 Mar 2021 31 Dec 2020 001-15214
40-F Open Document | Data Open Filing 40-F 03 Mar 2021 31 Dec 2020 001-15214
6-K Open Document Open Filing FORM 6-K 02 Mar 2021 01 Mar 2021 001-15214
SC 13G/A Open Document Open Filing AMENDMENT NO. 4 16 Feb 2021 005-79749
SC 13G/A Open Document Open Filing SC 13G/A 12 Feb 2021 005-79749
SC 13G/A Open Document Open Filing 11 Feb 2021 005-79749
6-K Open Document Open Filing FORM 6-K 08 Feb 2021 08 Feb 2021 001-15214
6-K Open Document Open Filing FORM 6-K 05 Feb 2021 04 Feb 2021 001-15214
6-K Open Document Open Filing FORM 6-K 01 Feb 2021 01 Feb 2021 001-15214
6-K Open Document Open Filing FORM 6-K 28 Dec 2020 23 Dec 2020 001-15214
6-K Open Document Open Filing FORM 6-K 14 Dec 2020 14 Dec 2020 001-15214
6-K Open Document Open Filing FORM 6-K 08 Dec 2020 08 Dec 2020 001-15214
6-K Open Document Open Filing FORM 6-K 02 Dec 2020 01 Dec 2020 001-15214
SC 13D/A Open Document Open Filing SC 13D/A 04 Nov 2020 005-79749
6-K Open Document Open Filing FORM 6-K 04 Nov 2020 04 Nov 2020 001-15214
6-K Open Document Open Filing 6-K 04 Nov 2020 30 Sep 2020 001-15214
6-K Open Document Open Filing FORM 6-K 03 Nov 2020 03 Nov 2020 001-15214
6-K Open Document Open Filing FORM 6-K 30 Oct 2020 30 Oct 2020 001-15214
6-K Open Document Open Filing FORM 6-K 16 Oct 2020 09 Oct 2020 001-15214
6-K Open Document Open Filing FORM 6-K 13 Oct 2020 09 Oct 2020 001-15214
6-K Open Document Open Filing FORM 6-K 01 Oct 2020 01 Oct 2020 001-15214
6-K Open Document Open Filing FORM 6-K 31 Jul 2020 31 Jul 2020 001-15214
6-K Open Document Open Filing 6-K 31 Jul 2020 30 Jun 2020 001-15214
6-K Open Document Open Filing FORM 6-K 23 Jul 2020 22 Jul 2020 001-15214
6-K Open Document Open Filing FORM 6-K 23 Jul 2020 22 Jul 2020 001-15214
6-K Open Document Open Filing FORM 6-K 13 Jul 2020 10 Jul 2020 001-15214
6-K Open Document Open Filing FORM 6-K 26 May 2020 26 May 2020 001-15214
6-K Open Document Open Filing FORM 6-K 12 May 2020 12 May 2020 001-15214
6-K Open Document Open Filing 6-K 12 May 2020 31 Mar 2020 001-15214
SC 13D/A Open Document Open Filing SC 13D/A 23 Apr 2020 005-79749
6-K Open Document Open Filing FORM 6-K 22 Apr 2020 21 Apr 2020 001-15214
6-K Open Document Open Filing FORM 6-K 21 Apr 2020 20 Apr 2020 001-15214
6-K Open Document Open Filing FORM 6-K 20 Apr 2020 20 Apr 2020 001-15214
6-K Open Document Open Filing FORM 6-K 07 Apr 2020 07 Apr 2020 001-15214
6-K Open Document Open Filing 6-K 06 Apr 2020 03 Apr 2020 001-15214
6-K Open Document Open Filing FORM 6-K 06 Apr 2020 03 Apr 2020 001-15214
6-K/A Open Document Open Filing REPORT OF FOREIGN PRIVATE ISSUER FOR THE MONTH OF MARCH, 2020 26 Mar 2020 21 Apr 2020 001-15214
6-K Open Document Open Filing FORM 6-K 20 Mar 2020 20 Mar 2020 001-15214
6-K Open Document Open Filing 6-K 20 Mar 2020 03 Mar 2020 001-15214
6-K Open Document Open Filing 6-K 20 Mar 2020 09 Mar 2020 001-15214
SC 13D/A Open Document Open Filing SC 13D/A 19 Mar 2020 005-79749
6-K Open Document Open Filing FORM 6-K 17 Mar 2020 17 Mar 2020 001-15214
6-K Open Document Open Filing FORM 6-K 12 Mar 2020 12 Mar 2020 001-15214
S-8 Open Document Open Filing FORM S-8 05 Mar 2020 333-236894
6-K Open Document Open Filing FORM 6-K 04 Mar 2020 04 Mar 2020 001-15214
6-K Open Document Open Filing 6-K 04 Mar 2020 31 Dec 2019 001-15214
40-F Open Document | Data Open Filing 40-F 04 Mar 2020 31 Dec 2019 001-15214
SC 13D Open Document Open Filing SC 13D 02 Mar 2020 005-79749
6-K Open Document Open Filing FORM 6-K 19 Feb 2020 18 Feb 2020 001-15214
SC 13G/A Open Document Open Filing AMENDMENT NO. 3 14 Feb 2020 005-79749
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2020 005-79749
SC 13G Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT 10 Feb 2020 005-79749
6-K Open Document Open Filing REPORT OF FOREIGN PRIVATE ISSUER FOR THE MONTH OF FEBRUARY, 2020 10 Feb 2020 07 Feb 2020 001-15214
SC 13G/A Open Document Open Filing AMENDMENT NO. 1 TO THE SCHEDULE 13G 24 Jan 2020 005-79749
6-K Open Document Open Filing FORM 6-K 17 Jan 2020 16 Jan 2020 001-15214
6-K Open Document Open Filing FORM 6-K 18 Dec 2019 17 Dec 2019 001-15214
6-K Open Document Open Filing FORM 6-K 07 Nov 2019 07 Nov 2019 001-15214
6-K Open Document Open Filing 6-K 07 Nov 2019 30 Sep 2019 001-15214
6-K Open Document Open Filing FORM 6-K 31 Oct 2019 30 Oct 2019 001-15214
6-K Open Document Open Filing FORM 6-K 10 Oct 2019 09 Oct 2019 001-15214
6-K Open Document Open Filing FORM 6-K 09 Oct 2019 09 Oct 2019 001-15214
6-K Open Document Open Filing FORM 6-K 02 Oct 2019 01 Oct 2019 001-15214
6-K Open Document Open Filing FORM 6-K 17 Sep 2019 17 Sep 2019 001-15214
6-K Open Document Open Filing FORM 6-K 16 Sep 2019 16 Sep 2019 001-15214
6-K Open Document Open Filing FORM 6-K 30 Aug 2019 30 Aug 2019 001-15214
6-K Open Document Open Filing FORM 6-K 27 Aug 2019 26 Aug 2019 001-15214
6-K Open Document Open Filing FORM 6-K 09 Aug 2019 09 Aug 2019 001-15214
6-K Open Document Open Filing 6-K 09 Aug 2019 30 Jun 2019 001-15214
6-K Open Document Open Filing FORM 6-K 02 Aug 2019 02 Aug 2019 001-15214
6-K Open Document Open Filing FORM 6-K 25 Jul 2019 25 Jul 2019 001-15214
6-K Open Document Open Filing FORM 6-K 17 Jul 2019 16 Jul 2019 001-15214
6-K Open Document Open Filing FORM 6-K 10 Jul 2019 09 Jul 2019 001-15214
6-K Open Document Open Filing FORM 6-K 28 May 2019 27 May 2019 001-15214
EFFECT Open Document Open Filing 23 May 2019 333-229991
6-K Open Document Open Filing FORM 6-K 23 May 2019 23 May 2019 001-15214
F-10/A Open Document Open Filing F-10/A 22 May 2019 333-229991
6-K Open Document Open Filing FORM 6-K 20 May 2019 17 May 2019 001-15214
6-K Open Document Open Filing FORM 6-K 14 May 2019 14 May 2019 001-15214
6-K Open Document Open Filing 6-K 14 May 2019 31 Mar 2019 001-15214
6-K Open Document Open Filing FORM 6-K 02 May 2019 01 May 2019 001-15214
40FR12B/A Open Document Open Filing AMENDMENT NO. 1 29 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 29 Apr 2019 26 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 26 Apr 2019 26 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 24 Apr 2019 23 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 23 Apr 2019 17 Apr 2019 001-15214
SC 13G Open Document Open Filing APRIL 19, 2019 22 Apr 2019 005-79749
SC 13D/A Open Document Open Filing APRIL 18, 2019 19 Apr 2019 005-79749
6-K Open Document Open Filing FORM 6-K 17 Apr 2019 17 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 16 Apr 2019 15 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 16 Apr 2019 15 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 15 Apr 2019 12 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 12 Apr 2019 11 Apr 2019 001-15214
SC 13D/A Open Document Open Filing APRIL 11, 2019 11 Apr 2019 005-79749
6-K Open Document Open Filing FORM 6-K 10 Apr 2019 09 Apr 2019 001-15214
SC 13D/A Open Document Open Filing APRIL 9, 2019 10 Apr 2019 005-79749
6-K Open Document Open Filing 6-K 02 Apr 2019 02 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 02 Apr 2019 02 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 02 Apr 2019 01 Apr 2019 001-15214
6-K Open Document Open Filing 6-K 01 Apr 2019 01 Apr 2019 001-15214
6-K Open Document Open Filing FORM 6-K 01 Apr 2019 01 Apr 2019 001-15214
6-K Open Document Open Filing 6-K 01 Apr 2019 24 Apr 2019 001-15214
SC 13D/A Open Document Open Filing MARCH 25, 2019 27 Mar 2019 005-79749
6-K Open Document Open Filing FORM 6-K 27 Mar 2019 27 Mar 2019 001-15214
6-K Open Document Open Filing FORM 6-K 26 Mar 2019 25 Mar 2019 001-15214
6-K Open Document Open Filing FORM 6-K 26 Mar 2019 26 Mar 2019 001-15214
6-K Open Document Open Filing FORM 6-K 25 Mar 2019 25 Mar 2019 001-15214
6-K Open Document Open Filing FORM 6-K 18 Mar 2019 15 Mar 2019 001-15214
SC 13D/A Open Document Open Filing MARCH 15, 2019 15 Mar 2019 005-79749
6-K Open Document Open Filing FORM 6-K 15 Mar 2019 14 Mar 2019 001-15214
6-K Open Document Open Filing FORM 6-K 11 Mar 2019 08 Mar 2019 001-15214
F-X Open Document Open Filing F-X 01 Mar 2019 333-229991
F-10 Open Document Open Filing F-10 01 Mar 2019 333-229991
F-X/A Open Document Open Filing F-X/A 27 Feb 2019 333-162418
F-X/A Open Document Open Filing F-X/A 27 Feb 2019 333-137846
F-X/A Open Document Open Filing F-X/A 27 Feb 2019 001-15214
6-K Open Document Open Filing FORM 6-K 27 Feb 2019 27 Feb 2019 001-15214
6-K Open Document Open Filing 6-K 27 Feb 2019 31 Dec 2018 001-15214
40-F Open Document | Data Open Filing 40-F 27 Feb 2019 31 Dec 2018 001-15214
SC 13G/A Open Document Open Filing AMENDMENT NO. 2 14 Feb 2019 005-79749
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2019 005-79749
SC 13G/A Open Document Open Filing 12 Feb 2019 005-79749
6-K Open Document Open Filing FORM 6-K 07 Feb 2019 06 Feb 2019 001-15214
6-K Open Document Open Filing FORM 6-K 25 Jan 2019 25 Jan 2019 001-15214
SC 13G Open Document Open Filing JANUARY 18, 2019 18 Jan 2019 005-79749
6-K Open Document Open Filing FORM 6-K 18 Dec 2018 17 Dec 2018 001-15214
6-K Open Document Open Filing FORM 6-K 14 Dec 2018 14 Dec 2018 001-15214
6-K Open Document Open Filing FORM 6-K 13 Nov 2018 13 Nov 2018 001-15214
6-K Open Document Open Filing FORM 6-K 31 Oct 2018 31 Oct 2018 001-15214
6-K Open Document Open Filing 6-K 31 Oct 2018 30 Sep 2018 001-15214
6-K Open Document Open Filing FORM 6-K 11 Oct 2018 10 Oct 2018 001-15214
6-K Open Document Open Filing FORM 6-K 02 Oct 2018 02 Oct 2018 001-15214
6-K Open Document Open Filing FORM 6-K 03 Aug 2018 03 Aug 2018 001-15214
6-K Open Document Open Filing 6-K 03 Aug 2018 30 Jun 2018 001-15214
6-K Open Document Open Filing FORM 6-K 20 Jul 2018 18 Jul 2018 001-15214
6-K Open Document Open Filing FORM 6-K 20 Jul 2018 19 Jul 2018 001-15214
6-K Open Document Open Filing FORM 6-K 18 Jul 2018 18 Jul 2018 001-15214
6-K Open Document Open Filing FORM 6-K 05 Jul 2018 05 Jul 2018 001-15214
6-K Open Document Open Filing FORM 6-K 01 Jun 2018 31 May 2018 001-15214
6-K Open Document Open Filing FORM 6-K 08 May 2018 08 May 2018 001-15214
6-K Open Document Open Filing 6-K 08 May 2018 31 Mar 2018 001-15214
6-K Open Document Open Filing FORM 6-K 23 Apr 2018 20 Apr 2018 001-15214
6-K Open Document Open Filing FORM 6-K 20 Apr 2018 19 Apr 2018 001-15214
6-K Open Document Open Filing FORM 6-K 09 Apr 2018 06 Apr 2018 001-15214
6-K Open Document Open Filing 6-K 22 Mar 2018 06 Mar 2018 001-15214
6-K Open Document Open Filing FORM 6-K 13 Mar 2018 12 Mar 2018 001-15214
6-K Open Document Open Filing FORM 6-K 09 Mar 2018 09 Mar 2018 001-15214
6-K Open Document Open Filing 6-K 05 Mar 2018 31 Dec 2017 001-15214
6-K Open Document Open Filing FORM 6-K 02 Mar 2018 01 Mar 2018 001-15214
40-F Open Document | Data Open Filing 40-F 02 Mar 2018 31 Dec 2017 001-15214
6-K/A Open Document Open Filing FORM 6-K/A 21 Feb 2018 20 Feb 2018 001-15214
SC 13G/A Open Document Open Filing AMENDMENT NO. 1 14 Feb 2018 005-79749
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2018 005-79749
6-K Open Document Open Filing FORM 6-K 09 Feb 2018 09 Feb 2018 001-15214
6-K Open Document Open Filing FORM 6-K 06 Feb 2018 06 Feb 2018 001-15214
SC 13G/A Open Document Open Filing 13G/A 05 Feb 2018 005-79749
6-K Open Document Open Filing FORM 6-K 02 Feb 2018 02 Feb 2018 001-15214
6-K Open Document Open Filing FORM 6-K 02 Feb 2018 02 Feb 2018 001-15214
6-K Open Document Open Filing FORM 6-K 18 Dec 2017 15 Dec 2017 001-15214
SC 13G Open Document Open Filing 11 Dec 2017 005-79749
6-K Open Document Open Filing FORM 6-K 08 Dec 2017 08 Dec 2017 001-15214
6-K Open Document Open Filing FORM 6-K 07 Dec 2017 06 Dec 2017 001-15214
6-K Open Document Open Filing FORM 6-K 07 Dec 2017 06 Dec 2017 001-15214
6-K Open Document Open Filing FORM 6-K 14 Nov 2017 13 Nov 2017 001-15214
6-K Open Document Open Filing FORM 6-K 02 Nov 2017 31 Oct 2017 001-15214
6-K Open Document Open Filing FORM 6-K 01 Nov 2017 31 Oct 2017 001-15214
6-K Open Document Open Filing FORM 6-K 31 Oct 2017 30 Oct 2017 001-15214
UPLOAD Open Document Open Filing 04 Oct 2017
6-K Open Document Open Filing FORM 6-K 03 Oct 2017 03 Oct 2017 001-15214
CORRESP Open Document Open Filing 21 Sep 2017
6-K Open Document Open Filing FORM 6-K 18 Sep 2017 18 Sep 2017 001-15214
6-K Open Document Open Filing FORM 6-K 18 Sep 2017 17 Sep 2017 001-15214
UPLOAD Open Document Open Filing 08 Sep 2017
6-K Open Document Open Filing FORM 6-K 31 Aug 2017 31 Aug 2017 001-15214
6-K Open Document Open Filing FORM 6-K 10 Aug 2017 09 Aug 2017 001-15214
6-K Open Document | Data Open Filing FORM 6-K 01 Aug 2017 01 Aug 2017 001-15214
6-K Open Document | Data Open Filing FORM 6-K 19 Jul 2017 18 Jul 2017 001-15214
6-K Open Document Open Filing FORM 6-K 14 Jul 2017 13 Jul 2017 001-15214
6-K Open Document Open Filing FORM 6-K 11 Jul 2017 11 Jul 2017 001-15214
6-K Open Document Open Filing FORM 6-K 05 Jul 2017 05 Jul 2017 001-15214
6-K Open Document Open Filing FORM 6-K 19 Jun 2017 16 Jun 2017 001-15214
6-K Open Document Open Filing FORM 6-K 05 Jun 2017 31 May 2017 001-15214
6-K Open Document Open Filing FORM 6-K 08 May 2017 05 May 2017 001-15214
6-K Open Document Open Filing FORM 6-K 08 May 2017 05 May 2017 001-15214
6-K Open Document Open Filing FORM 6-K 21 Apr 2017 20 Apr 2017 001-15214
6-K Open Document Open Filing FORM 6-K 21 Apr 2017 19 Apr 2017 001-15214
6-K Open Document Open Filing FORM 6-K 21 Apr 2017 19 Apr 2017 001-15214
6-K Open Document Open Filing FORM 6-K 10 Apr 2017 07 Apr 2017 001-15214
6-K Open Document Open Filing 6-K 22 Mar 2017 21 Mar 2017 001-15214
6-K Open Document Open Filing 6-K 06 Mar 2017 31 Dec 2016 001-15214
40-F Open Document Open Filing 40-F 03 Mar 2017 31 Dec 2016 001-15214
6-K Open Document Open Filing FORM 6-K 03 Mar 2017 03 Mar 2017 001-15214
6-K Open Document Open Filing FORM 6-K 22 Feb 2017 10 Feb 2017 001-15214
SC 13G/A Open Document Open Filing SCHEDULE 13G AMENDMENT NO. 3 14 Feb 2017 005-79749
SC 13G/A Open Document Open Filing SC 13G/A 13 Feb 2017 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 09 Feb 2017 09 Feb 2017 001-15214
SC 13G/A Open Document Open Filing SCHEDULE 13G AMENDMENT 06 Feb 2017 005-79749
6-K Open Document Open Filing FORM 6-K 02 Feb 2017 02 Feb 2017 001-15214
F-10/A Open Document Open Filing F-10/A 27 Jan 2017 333-215608
6-K Open Document Open Filing FORM 6-K 27 Jan 2017 26 Jan 2017 001-15214
F-X Open Document Open Filing F-X 18 Jan 2017 333-215608
F-10 Open Document Open Filing F-10 18 Jan 2017 333-215608
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 18 Jan 2017 17 Jan 2017 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 13 Jan 2017 13 Jan 2017 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 29 Dec 2016 29 Dec 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 20 Dec 2016 19 Dec 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 20 Dec 2016 19 Dec 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 19 Dec 2016 19 Dec 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 13 Dec 2016 13 Dec 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 02 Dec 2016 02 Dec 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 29 Nov 2016 28 Nov 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 25 Nov 2016 25 Nov 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 22 Nov 2016 21 Nov 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 21 Nov 2016 21 Nov 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 07 Nov 2016 04 Nov 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 18 Oct 2016 17 Oct 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 30 Sep 2016 30 Sep 2016 001-15214
UPLOAD Open Document Open Filing 01 Sep 2016
CORRESP Open Document Open Filing 16 Aug 2016
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 09 Aug 2016 30 Jun 2016 001-15214
UPLOAD Open Document Open Filing 03 Aug 2016
CORRESP Open Document Open Filing 26 Jul 2016
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 20 Jul 2016 19 Jul 2016 001-15214
UPLOAD Open Document Open Filing 12 Jul 2016
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 01 Jul 2016 30 Jun 2016 001-15214
6-K Open Document | Data Open Filing TRANSALTA CORPORATION - 6-K 04 May 2016 31 Mar 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 26 Apr 2016 22 Apr 2016 001-15214
6-K Open Document | Data Open Filing TRANSALTA CORPORATION - 6-K 25 Apr 2016 22 Apr 2016 001-15214
6-K Open Document | Data Open Filing TRANSALTA CORPORATION - 6-K 22 Apr 2016 22 Apr 2016 001-15214
6-K Open Document | Data Open Filing TRANSALTA CORPORATION - 6-K 22 Apr 2016 21 Apr 2016 001-15214
6-K Open Document | Data Open Filing TRANSALTA CORPORATION - 6-K 06 Apr 2016 05 Apr 2016 001-15214
6-K Open Document | Data Open Filing TRANSALTA CORPORATION - 6-K 31 Mar 2016 31 Mar 2016 001-15214
6-K Open Document | Data Open Filing 6-K 31 Mar 2016 31 Mar 2016 001-15214
6-K Open Document | Data Open Filing TRANSALTA CORPORATION - 6-K 17 Mar 2016 17 Mar 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 08 Mar 2016 08 Mar 2016 001-15214
6-K/A Open Document Open Filing TRANSALTA CORPORATION - 6-K/A 02 Mar 2016 01 Mar 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 01 Mar 2016 16 Feb 2016 001-15214
6-K Open Document Open Filing 6-K 29 Feb 2016 29 Feb 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 18 Feb 2016 16 Feb 2016 001-15214
40-F Open Document Open Filing 40-F 18 Feb 2016 31 Dec 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 17 Feb 2016 16 Feb 2016 001-15214
SC 13G/A Open Document Open Filing SC 13G/A 17 Feb 2016 005-79749
SC 13G/A Open Document Open Filing SC 13G/A 16 Feb 2016 005-79749
SC 13G/A Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT AMENDMENT 05 Feb 2016 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 19 Jan 2016 19 Jan 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 15 Jan 2016 14 Jan 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 07 Jan 2016 06 Jan 2016 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Nov 2015 29 Oct 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 24 Nov 2015 23 Nov 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 02 Nov 2015 30 Sep 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Oct 2015 29 Oct 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 02 Oct 2015 02 Oct 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 01 Oct 2015 01 Oct 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 01 Oct 2015 30 Sep 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 01 Oct 2015 30 Sep 2015 001-15214
SC 13G Open Document Open Filing SC 13G 21 Sep 2015 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Jul 2015 30 Jun 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 28 Jul 2015 27 Jul 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 27 Jul 2015 27 Jul 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 21 Jul 2015 21 Jul 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 08 Jul 2015 07 Jul 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Jun 2015 30 Jun 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 08 May 2015 08 May 2015 001-15214
6-K Open Document Open Filing PRESS RELEASE DATED APRIL 29, 2015 ANNOUNCING TRANSALTA SHAREHOLDERS APPROVE ALL 29 Apr 2015 29 Apr 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 28 Apr 2015 31 Mar 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 28 Apr 2015 27 Apr 2015 001-15214
SC 13G/A Open Document Open Filing 10 Apr 2015 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 08 Apr 2015 07 Apr 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 23 Mar 2015 23 Mar 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6K 20 Mar 2015 19 Mar 2015 001-15214
6-K Open Document Open Filing 6-K 10 Mar 2015 09 Mar 2015 001-15214
6-K Open Document Open Filing 6-K 27 Feb 2015 27 Feb 2015 001-15214
6-K Open Document Open Filing 6-K 19 Feb 2015 19 Feb 2015 001-15214
40-F Open Document Open Filing 40-F 19 Feb 2015 31 Dec 2014 001-15214
SC 13G/A Open Document Open Filing SC 13G/A 13 Feb 2015 005-79749
SC 13G Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT 10 Feb 2015 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 05 Feb 2015 05 Feb 2015 001-15214
SC 13G/A Open Document Open Filing 02 Feb 2015 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 26 Jan 2015 23 Jan 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 22 Jan 2015 22 Jan 2015 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6K 08 Jan 2015 08 Jan 2015 001-15214
EFFECT Open Document Open Filing 18 Dec 2014 333-200773
F-10/A Open Document Open Filing F-10/A 17 Dec 2014 333-200773
F-X Open Document Open Filing F-X 05 Dec 2014 333-200773
F-10 Open Document Open Filing F-10 05 Dec 2014 333-200773
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 31 Oct 2014 30 Oct 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Oct 2014 29 Oct 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Oct 2014 29 Oct 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 08 Oct 2014 07 Oct 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 16 Sep 2014 16 Sep 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 27 Aug 2014 26 Aug 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 15 Aug 2014 15 Aug 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 06 Aug 2014 06 Aug 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Jul 2014 30 Jul 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 28 Jul 2014 28 Jul 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 23 Jul 2014 22 Jul 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 26 Jun 2014 26 Jun 2014 001-15214
UPLOAD Open Document Open Filing 18 Jun 2014
CORRESP Open Document Open Filing 17 Jun 2014
UPLOAD Open Document Open Filing 11 Jun 2014
6-K Open Document Open Filing 6-K 30 May 2014 30 May 2014 001-15214
SUPPL Open Document Open Filing SUPPL 30 May 2014 333-185157
FWP Open Document Open Filing FWP 29 May 2014 333-185157
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 29 May 2014 29 May 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 29 May 2014 29 May 2014 001-15214
SUPPL Open Document Open Filing SUPPL 29 May 2014 333-185157
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 01 May 2014 30 Apr 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 30 Apr 2014 31 Mar 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 29 Apr 2014 29 Apr 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 29 Apr 2014 28 Apr 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 16 Apr 2014 15 Apr 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 11 Apr 2014 10 Apr 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 07 Apr 2014 04 Apr 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 19 Mar 2014 18 Mar 2014 001-15214
6-K/A Open Document Open Filing 6-K/A 13 Mar 2014 13 Mar 2014 001-15214
6-K Open Document Open Filing 6-K 10 Mar 2014 10 Mar 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 26 Feb 2014 26 Feb 2014 001-15214
6-K Open Document Open Filing 6-K 20 Feb 2014 20 Feb 2014 001-15214
6-K Open Document Open Filing 6-K 20 Feb 2014 20 Feb 2013 001-15214
40-F Open Document Open Filing 40-F 20 Feb 2014 31 Dec 2013 001-15214
SC 13G Open Document Open Filing SC 13G 14 Feb 2014 005-79749
SC 13G/A Open Document Open Filing 13 Feb 2014 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 07 Feb 2014 07 Feb 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION 6-K 05 Feb 2014 05 Feb 2014 001-15214
6-K Open Document Open Filing TRANSALTA CORPORATION - 6 - K 05 Feb 2014 04 Feb 2014 001-15214
SC 13G Open Document Open Filing 03 Feb 2014 005-79749
6-K Open Document Open Filing TRANSALTA CORPORATION - 6-K 16 Jan 2014 15 Jan 2014 001-15214