QS Energy, Inc. SEC filings QSEP
QS Energy, Inc. has 551 filings in SEC EDGAR's recent list, going back to Jan 27, 2000. Its latest annual report, Form 10-K, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Jun 25, 2025 (material agreement). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Aug 28, 2026 | Jan 1, 2026 |
| 4 | Insider transaction | Aug 28, 2026 | Jan 1, 2026 |
| 4 | Insider transaction | May 27, 2025 | May 23, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 27, 2025 | — |
| 4 | Insider transaction | Feb 25, 2025 | Feb 14, 2025 |
| 4/A | Filing | Feb 25, 2025 | Jun 7, 2021 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 14, 2025 |
| 4/A | Filing | Feb 25, 2025 | Feb 13, 2024 |
| 4 | Insider transaction | Feb 13, 2024 | Feb 13, 2024 |
| 4 | Insider transaction | Mar 23, 2023 | Mar 22, 2023 |
| 4 | Insider transaction | Aug 10, 2022 | Aug 10, 2022 |
| 4 | Insider transaction | Jul 28, 2021 | Jun 7, 2021 |
| 3 | Initial insider ownership | Jul 28, 2021 | Apr 15, 2021 |
| 4/A | Filing | Jun 22, 2020 | Jun 19, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 19, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 19, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 15, 2020 |
| 4 | Insider transaction | Jun 17, 2020 | Jun 12, 2020 |
| 4 | Insider transaction | Apr 1, 2020 | Nov 15, 2019 |
| 4 | Insider transaction | Mar 24, 2020 | Jan 1, 2020 |
| 4 | Insider transaction | Mar 24, 2020 | Jan 1, 2020 |
| 4 | Insider transaction | Mar 24, 2020 | Jan 1, 2020 |
| 4 | Insider transaction | Mar 24, 2020 | Jan 1, 2020 |
| 4 | Insider transaction | Mar 24, 2020 | Jan 1, 2020 |
| 4 | Insider transaction | Mar 24, 2020 | Jan 1, 2020 |
| 4 | Insider transaction | Mar 18, 2020 | Jan 8, 2020 |
| SC 13D | Ownership over 5% (active) | Oct 16, 2019 | — |
| 4 | Insider transaction | Sep 24, 2019 | Sep 23, 2019 |
| 4 | Insider transaction | Jun 4, 2019 | May 31, 2019 |
| 4 | Insider transaction | Apr 10, 2019 | Feb 21, 2019 |
| 4 | Insider transaction | Apr 5, 2019 | Feb 25, 2019 |
| 4 | Insider transaction | Apr 5, 2019 | Feb 25, 2019 |
| 4 | Insider transaction | Mar 21, 2019 | Mar 21, 2019 |
| 4 | Insider transaction | Mar 1, 2019 | Jan 1, 2019 |
| 4 | Insider transaction | Mar 1, 2019 | Jan 1, 2019 |
| 4 | Insider transaction | Mar 1, 2019 | Jan 1, 2019 |
| 4 | Insider transaction | Mar 1, 2019 | Jan 1, 2019 |
| 4 | Insider transaction | Mar 1, 2019 | Jan 1, 2019 |
| 4 | Insider transaction | Mar 1, 2019 | Jan 1, 2019 |
| 4 | Insider transaction | Mar 1, 2019 | Jan 1, 2019 |
| 4 | Insider transaction | Feb 21, 2019 | Feb 21, 2019 |
| 4 | Insider transaction | Nov 28, 2018 | Nov 26, 2018 |
| 4 | Insider transaction | Nov 28, 2018 | Nov 26, 2018 |
| 4/A | Filing | Nov 28, 2018 | Mar 30, 2018 |
| 4 | Insider transaction | May 16, 2018 | May 14, 2018 |
| 4 | Insider transaction | Apr 4, 2018 | Mar 30, 2018 |
| 4 | Insider transaction | Feb 23, 2018 | Jan 1, 2018 |
| 4 | Insider transaction | Feb 23, 2018 | Jan 1, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Jan 1, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Jan 1, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Jan 1, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Jan 1, 2018 |
| 4 | Insider transaction | Feb 20, 2018 | Jan 1, 2018 |
| 4 | Insider transaction | Feb 6, 2018 | Feb 6, 2018 |
| 4 | Insider transaction | Oct 3, 2017 | May 1, 2017 |
| 4 | Insider transaction | Oct 2, 2017 | Sep 29, 2017 |
| 4 | Insider transaction | Aug 3, 2017 | Aug 2, 2017 |
| 4 | Insider transaction | Aug 1, 2017 | Jul 30, 2017 |
| 3 | Initial insider ownership | Jul 27, 2017 | Jul 14, 2017 |
| 4 | Insider transaction | Jul 19, 2017 | Jul 19, 2017 |
| 4 | Insider transaction | Jun 2, 2017 | May 31, 2017 |
| 4 | Insider transaction | May 17, 2017 | May 15, 2017 |
| 3 | Initial insider ownership | May 17, 2017 | May 9, 2017 |
| 4 | Insider transaction | May 12, 2017 | May 9, 2017 |
| 4 | Insider transaction | May 11, 2017 | May 9, 2017 |
| 3 | Initial insider ownership | May 11, 2017 | May 9, 2017 |
| 4 | Insider transaction | Apr 18, 2017 | Apr 17, 2017 |
| 4 | Insider transaction | Apr 7, 2017 | Apr 1, 2017 |
| 3 | Initial insider ownership | Apr 7, 2017 | Apr 1, 2017 |
| 4 | Insider transaction | Apr 6, 2017 | Apr 1, 2017 |
| 4 | Insider transaction | Apr 6, 2017 | Apr 1, 2017 |
| 3 | Initial insider ownership | Apr 6, 2017 | Apr 1, 2017 |
| 3 | Initial insider ownership | Apr 6, 2017 | Apr 1, 2017 |
| 4 | Insider transaction | Feb 3, 2017 | Jan 1, 2017 |
| 4 | Insider transaction | Jan 31, 2017 | Jan 1, 2017 |
| 4 | Insider transaction | Jan 30, 2017 | Oct 13, 2016 |
| 4 | Insider transaction | Jan 27, 2017 | Jan 1, 2017 |
| 4 | Insider transaction | Jan 26, 2017 | Jan 1, 2017 |
| 4 | Insider transaction | Jan 26, 2017 | Jan 1, 2017 |
| 4 | Insider transaction | Aug 8, 2016 | Aug 5, 2016 |
| 4 | Insider transaction | May 11, 2016 | May 9, 2016 |
| 4 | Insider transaction | May 10, 2016 | May 9, 2016 |
| 4 | Insider transaction | May 10, 2016 | May 9, 2016 |
| 4 | Insider transaction | May 10, 2016 | May 9, 2016 |
| 4 | Insider transaction | May 10, 2016 | May 9, 2016 |
| 4 | Insider transaction | May 10, 2016 | May 9, 2016 |
| 4 | Insider transaction | Mar 10, 2015 | Mar 6, 2015 |
| 4 | Insider transaction | Jan 28, 2015 | Jan 1, 2015 |
| 4 | Insider transaction | Jan 27, 2015 | Jan 1, 2015 |
| 4 | Insider transaction | Jan 26, 2015 | Jan 1, 2015 |
| 4 | Insider transaction | Jan 26, 2015 | Jan 1, 2015 |
| 4 | Insider transaction | Jan 26, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 23, 2015 | Jan 20, 2015 |
| 4 | Insider transaction | May 20, 2014 | May 6, 2014 |
| 4 | Insider transaction | May 15, 2014 | May 6, 2014 |
| 4 | Insider transaction | May 15, 2014 | May 6, 2014 |
| 4 | Insider transaction | May 14, 2014 | May 6, 2014 |
| 4 | Insider transaction | May 14, 2014 | May 6, 2014 |
| 4 | Insider transaction | May 14, 2014 | May 6, 2014 |
| 4 | Insider transaction | Dec 19, 2013 | Dec 13, 2013 |
| 4/A | Form 4 amendment | Nov 1, 2013 | Jul 3, 2013 |
| 3/A | Form 3 amendment | Oct 2, 2013 | Jul 3, 2013 |
| 4 | Insider transaction | Sep 25, 2013 | Sep 16, 2013 |
| 3/A | Ownership document | Sep 24, 2013 | Aug 6, 2013 |
| 4/A | Form 4 amendment | Sep 19, 2013 | Jul 3, 2013 |
| 4 | Insider transaction | Sep 19, 2013 | Sep 16, 2013 |
| 4 | Insider transaction | Sep 19, 2013 | Sep 16, 2013 |
| 3 | Initial insider ownership | Aug 20, 2013 | Aug 6, 2013 |
| 3 | Initial insider ownership | Aug 7, 2013 | Jul 3, 2013 |
| 4 | Insider transaction | Jul 22, 2013 | Jul 3, 2013 |
| 4 | Insider transaction | Jul 19, 2013 | Jul 3, 2013 |
| 4 | Insider transaction | Jul 17, 2013 | Jul 9, 2013 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 3, 2013 | — |
| 4/A | Form 4/a | Mar 14, 2013 | Jan 30, 2012 |
| 4/A | Form 4/a | Mar 14, 2013 | Jan 30, 2013 |
| 4 | Insider transaction | Feb 4, 2013 | Feb 1, 2013 |
| 4 | Insider transaction | Jan 31, 2013 | Jan 30, 2013 |
| 3 | Initial insider ownership | Dec 13, 2012 | Dec 10, 2012 |
| 4 | Insider transaction | Nov 27, 2012 | Nov 26, 2012 |
| 4 | Insider transaction | Sep 18, 2012 | Sep 18, 2012 |
| 3 | Initial insider ownership | Feb 7, 2012 | Feb 1, 2012 |
| 4 | Insider transaction | Feb 6, 2012 | Jan 30, 2012 |
| 4 | Insider transaction | Jan 13, 2012 | Oct 23, 2009 |
| 3 | Initial insider ownership | Jan 13, 2012 | Feb 12, 2007 |
| 4 | Insider transaction | Jan 4, 2012 | Dec 31, 2011 |
| 4/A | Form 4 amendment | Jan 4, 2012 | Oct 24, 2011 |
| 4 | Insider transaction | Nov 14, 2011 | Oct 24, 2011 |
| 4 | Insider transaction | Nov 10, 2011 | Oct 27, 2011 |
| 4 | Insider transaction | Oct 15, 2008 | Sep 24, 2008 |
| 4 | Insider transaction | Oct 15, 2008 | Sep 24, 2008 |
| SC 13D | Ownership over 5% (active) | Apr 21, 2008 | — |
| 4 | Insider transaction | Apr 18, 2008 | Apr 15, 2008 |
| 3 | Initial insider ownership | Apr 3, 2008 | Mar 10, 2008 |
| SC 13D | Ownership over 5% (active) | Nov 14, 2007 | — |
| 4 | Insider transaction | Aug 14, 2007 | Aug 13, 2007 |
| 4 | Insider transaction | Jul 31, 2007 | Jul 25, 2007 |
| 3 | Initial insider ownership | Jul 31, 2007 | Jul 18, 2007 |
| 4 | Insider transaction | Jul 13, 2007 | Jul 11, 2007 |
| 4 | Insider transaction | Jun 13, 2007 | Jun 11, 2007 |
| 4 | Insider transaction | May 15, 2007 | May 11, 2007 |
| 4 | Insider transaction | Apr 13, 2007 | Apr 11, 2007 |
| 4 | Insider transaction | Mar 14, 2007 | Mar 12, 2007 |
| 4 | Insider transaction | Feb 28, 2007 | Feb 12, 2007 |
| 3/A | Primary document | Feb 28, 2007 | Jan 8, 2007 |
| 3 | Initial insider ownership | Feb 27, 2007 | Feb 12, 2007 |
| 3 | Initial insider ownership | Feb 22, 2007 | Feb 12, 2007 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2007 | — |
| SC 13G | Ownership over 5% (passive) | Dec 13, 2006 | — |
| 4 | Insider transaction | Aug 24, 2006 | Aug 8, 2006 |
| 4 | Insider transaction | Aug 18, 2006 | Aug 16, 2006 |
| 4 | Insider transaction | Aug 10, 2006 | Aug 8, 2006 |
| 4 | Insider transaction | Aug 10, 2006 | Aug 8, 2006 |
| 4 | Insider transaction | Aug 10, 2006 | Aug 8, 2006 |
| 4 | Insider transaction | Aug 7, 2006 | May 31, 2006 |
| 4 | Insider transaction | Aug 2, 2006 | Jul 31, 2006 |
| 4 | Insider transaction | Aug 2, 2006 | Jul 31, 2006 |
| 3 | Initial insider ownership | Mar 7, 2006 | Feb 21, 2006 |
| 3 | Initial insider ownership | Mar 7, 2006 | Feb 21, 2006 |
| 4 | Insider transaction | Feb 23, 2006 | Feb 21, 2006 |
| 4 | Insider transaction | Feb 23, 2006 | Feb 21, 2006 |
| 5 | Annual insider ownership | Feb 14, 2006 | Dec 31, 2005 |
| 5/A | Primary document | Feb 14, 2006 | Dec 31, 2004 |
| 4 | Insider transaction | Feb 6, 2006 | Feb 2, 2006 |
| 4 | Insider transaction | Sep 27, 2005 | Sep 23, 2005 |
| 4 | Insider transaction | Aug 2, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 2, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 2, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 2, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 2, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 2, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 2, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 1, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 1, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 1, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 1, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 1, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | Aug 1, 2005 | Jul 29, 2005 |
| 4 | Insider transaction | May 23, 2005 | May 19, 2005 |
| 5/A | Primary document | May 11, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | Apr 26, 2005 | Dec 31, 2004 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2001 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
| 5 | Annual insider ownership | May 3, 2004 | Dec 31, 2000 |
Showing 200 filings, the most recent 200. 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
- Oil & Gas Field Machinery & Equipment (SIC 3533)
- Listed as
- QSEP (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- NV
- Headquarters
- Tomball, TX
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1103795
- Former names
- SAVE THE WORLD AIR INC (until Aug 7, 2015)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.