Aetherion Technologies Inc. SEC filings WPRT
Aetherion Technologies Inc. has 865 filings in SEC EDGAR's recent list, going back to Jun 27, 2006. Its latest annual report, Form 20-F, was filed on Apr 23, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Oct 30, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 29, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 22, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 6, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 27, 2026 | — |
| 144 | Notice of proposed sale | Sep 16, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 1, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 11, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 5, 2025 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 17, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 25, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 9, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 30, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 10, 2020 | — |
| 4/A | Form 4/a submission | May 4, 2020 | Jul 19, 2017 |
| SC 13D/A | Amended ownership over 5% (active) | May 4, 2020 | — |
| 3 | Initial insider ownership | May 1, 2020 | Apr 29, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 4, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Jan 16, 2019 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 12, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 20, 2017 | — |
| 4 | Insider transaction | Jul 21, 2017 | Jul 19, 2017 |
| SC 13D | Ownership over 5% (active) | Apr 4, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 30, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Oct 31, 2016 | — |
| 3 | Initial insider ownership | Jun 13, 2016 | Jun 1, 2016 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 8, 2016 | — |
| 4 | Insider transaction | Jun 7, 2016 | Jun 1, 2016 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 21, 2016 | — |
| SC 13D/A | Amended ownership over 5% (active) | Sep 2, 2015 | — |
| 4 | Insider transaction | May 12, 2015 | May 8, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 16, 2015 | — |
| SC 13D | Ownership over 5% (active) | Oct 31, 2014 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 4, 2014 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 3, 2014 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 30, 2014 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 5, 2013 | — |
| SC 13G | Ownership over 5% (passive) | Sep 4, 2013 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2013 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2013 | — |
| 4 | Insider transaction | Feb 11, 2013 | Feb 6, 2013 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2013 | — |
| 4 | Insider transaction | Jan 2, 2013 | Dec 31, 2012 |
| 4 | Insider transaction | Aug 20, 2012 | Aug 18, 2012 |
| 4 | Insider transaction | Jul 31, 2012 | Jul 27, 2012 |
| 4 | Insider transaction | Jul 24, 2012 | Jul 21, 2012 |
| 4 | Insider transaction | Jul 20, 2012 | Jul 18, 2012 |
| 4 | Insider transaction | Jul 12, 2012 | Jul 10, 2012 |
| 4 | Insider transaction | Jul 9, 2012 | Jul 5, 2012 |
| 4 | Insider transaction | Jun 25, 2012 | Jun 21, 2012 |
| 4 | Insider transaction | Jun 19, 2012 | Jun 15, 2012 |
| 4/A | Main document description | Jun 13, 2012 | May 15, 2012 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 11, 2012 | — |
| 4 | Insider transaction | May 21, 2012 | May 15, 2012 |
| 4 | Insider transaction | Apr 27, 2012 | Apr 25, 2012 |
| 4 | Insider transaction | Apr 23, 2012 | Apr 19, 2012 |
| 4 | Insider transaction | Apr 19, 2012 | Mar 28, 2012 |
| 4 | Insider transaction | Mar 15, 2012 | Mar 13, 2012 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2012 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2012 | — |
| SC 13G | Ownership over 5% (passive) | Jan 27, 2012 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 6, 2012 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 30, 2011 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2011 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2011 | — |
| 4 | Insider transaction | Jul 16, 2010 | Jul 14, 2010 |
| SC 13G/A | Amended ownership over 5% (passive) | May 5, 2010 | — |
| 4 | Insider transaction | May 4, 2010 | May 3, 2010 |
| SC 13G | Ownership over 5% (passive) | Apr 28, 2010 | — |
| 4 | Insider transaction | Apr 27, 2010 | Apr 26, 2010 |
| 4 | Insider transaction | Apr 6, 2010 | Apr 5, 2010 |
| 4/A | Main document description | Apr 5, 2010 | Mar 30, 2010 |
| 4/A | Main document description | Apr 5, 2010 | Mar 26, 2010 |
| 4 | Insider transaction | Apr 2, 2010 | Apr 1, 2010 |
| 4 | Insider transaction | Apr 1, 2010 | Mar 30, 2010 |
| 4 | Insider transaction | Mar 30, 2010 | Mar 26, 2010 |
| 4 | Insider transaction | Mar 17, 2010 | Mar 15, 2010 |
| 4 | Insider transaction | Mar 10, 2010 | Mar 8, 2010 |
| 4 | Insider transaction | Mar 2, 2010 | Feb 26, 2010 |
| 4 | Insider transaction | Feb 26, 2010 | Feb 24, 2010 |
| 4 | Insider transaction | Feb 24, 2010 | Feb 22, 2010 |
| 4/A | Main document description | Feb 23, 2010 | Feb 17, 2010 |
| 4 | Insider transaction | Feb 22, 2010 | Feb 18, 2010 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 19, 2010 | — |
| 4 | Insider transaction | Feb 18, 2010 | Feb 16, 2010 |
| 3 | Initial insider ownership | Feb 18, 2010 | Feb 12, 2010 |
| SC 13G | Ownership over 5% (passive) | Jan 7, 2010 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2009 | — |
Showing 89 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
- Engines & Turbines (SIC 3510)
- Listed as
- AETR (Nasdaq), WPRT (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Alberta, Canada
- Headquarters
- Vancouver
- SEC filer status
- Non-accelerated filer
- SEC CIK
- 1370416
- Former names
- WESTPORT FUEL SYSTEMS INC. (until Oct 16, 2026); WESTPORT INNOVATIONS INC (until Jun 1, 2016)
Other Engines & Turbines companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.