Transalta Corp SEC filings TRNTF
Transalta Corp has 1,000 filings in SEC EDGAR's recent list, going back to Dec 3, 2004. Its latest annual report, Form 40-F, was filed on Feb 27, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Nov 3, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| FWP | Free writing prospectus | Jun 3, 2026 | — |
| FWP | Free writing prospectus | Jun 3, 2026 | — |
| FWP | Free writing prospectus | Jun 3, 2026 | — |
| FWP | Free writing prospectus | Dec 12, 2025 | — |
| F-X | Filing | Dec 9, 2025 | — |
| F-10EF | Filing | Dec 9, 2025 | — |
| F-X | Filing | May 16, 2023 | — |
| F-10 | Filing | May 16, 2023 | — |
| FWP | Free writing prospectus | Nov 14, 2022 | — |
| S-8 | Employee stock plan registration | Nov 10, 2021 | — |
| F-10/A | Filing | Jun 29, 2021 | — |
| F-X | Filing | Jun 15, 2021 | — |
| F-10 | Filing | Jun 15, 2021 | — |
| S-8 | Employee stock plan registration | Mar 5, 2020 | — |
| F-10/A | Filing | May 22, 2019 | — |
| F-X | Filing | Mar 1, 2019 | — |
| F-10 | Filing | Mar 1, 2019 | — |
| F-X/A | Filing | Feb 27, 2019 | — |
| F-X/A | Filing | Feb 27, 2019 | — |
| F-X/A | Filing | Feb 27, 2019 | — |
| F-10/A | Filing | Jan 27, 2017 | — |
| F-X | Filing | Jan 18, 2017 | — |
| F-10 | Filing | Jan 18, 2017 | — |
| F-10/A | Filing | Dec 17, 2014 | — |
| F-X | Filing | Dec 5, 2014 | — |
| F-10 | Filing | Dec 5, 2014 | — |
| FWP | Free writing prospectus | May 29, 2014 | — |
| F-10/A | Filing | Dec 7, 2012 | — |
| F-X | Filing | Nov 27, 2012 | — |
| F-10 | Filing | Nov 27, 2012 | — |
| FWP | Free writing prospectus | Nov 2, 2012 | — |
| F-10/A | Filing | Nov 18, 2010 | — |
| F-X | Filing | Nov 9, 2010 | — |
| F-10 | Filing | Nov 8, 2010 | — |
| FWP | Free writing prospectus | Mar 9, 2010 | — |
| FWP | Free writing prospectus | Nov 9, 2009 | — |
| FWP | Free writing prospectus | Oct 28, 2009 | — |
| F-10/A | Filing | Oct 19, 2009 | — |
| F-X | Filing | Oct 9, 2009 | — |
| F-10 | Filing | Oct 9, 2009 | — |
| F-10/A | Form f-10/a | Nov 18, 2008 | — |
| F-X | Form f-x | Nov 10, 2008 | — |
| F-10 | Form f-10 | Nov 10, 2008 | — |
| FWP | Free writing prospectus | May 6, 2008 | — |
| F-10/A | Form f-10/a | Oct 16, 2006 | — |
| F-X | Form f-x | Oct 6, 2006 | — |
| F-10 | Form f-10 | Oct 5, 2006 | — |
Showing 47 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electric Services (SIC 4911)
- Listed as
- TAC (NYSE), TACPF (OTC), TRNTF (OTC), TSLTF (OTC)
- Fiscal year ends
- December 31
- Headquarters
- Calgary, Alberta, Canada
- SEC CIK
- 1144800
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.