Fuel Tech, Inc. SEC filings FTEK
Fuel Tech, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Oct 28, 2003. Its latest annual report, Form 10-K, was filed on Mar 3, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 3, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Results of operations
|
Nov 3, 2026 | Nov 3, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 18, 2026 | Sep 14, 2026 |
| 8-K |
Current report
Officer or director change
|
Sep 2, 2026 | Aug 27, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 4, 2026 | Jul 31, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2026 | Jun 4, 2026 |
| 8-K |
Current report
Results of operations
|
May 5, 2026 | May 5, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 27, 2026 | Mar 24, 2026 |
| 8-K |
Current report
Results of operations
|
Mar 3, 2026 | Mar 3, 2026 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2025 | Dec 11, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2025 | Nov 4, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2025 | Aug 5, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 10, 2025 | Jun 5, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
May 22, 2025 | May 21, 2025 |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 2, 2025 | Mar 27, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 4, 2025 | Mar 4, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 13, 2024 | Dec 12, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 4, 2024 | Dec 2, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2024 | Nov 6, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 27, 2024 | Aug 27, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2024 | Aug 6, 2024 |
| 8-K/A |
Amended current report
Bylaw or fiscal year change
|
Jun 28, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jun 10, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 10, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Results of operations
|
May 7, 2024 | May 7, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 28, 2024 | Mar 26, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 11, 2024 | Mar 11, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 6, 2024 | Feb 29, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 8, 2023 | Dec 7, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2023 | Nov 7, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 12, 2023 | Sep 12, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2023 | Aug 8, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2023 | Jun 8, 2023 |
| 8-K |
Current report
Officer or director change
|
May 10, 2023 | May 4, 2023 |
| 8-K |
Current report
Results of operations
|
May 9, 2023 | May 9, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 7, 2023 | Mar 7, 2023 |
| 8-K |
Current report
Officer or director change
|
Mar 3, 2023 | Mar 2, 2023 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2022 | Dec 8, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2022 | Nov 8, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 14, 2022 | Sep 14, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2022 | Aug 10, 2022 |
| 8-K |
Current report
Officer or director change
|
Jun 7, 2022 | Jun 2, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 3, 2022 | Jun 2, 2022 |
| 8-K |
Current report
Results of operations
|
May 10, 2022 | May 10, 2022 |
| 8-K |
Current report
Officer or director change
|
Apr 11, 2022 | Apr 6, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 8, 2022 | Mar 8, 2022 |
| 8-K |
Current report
Officer or director change
|
Dec 14, 2021 | Dec 9, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2021 | Nov 9, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 13, 2021 | Sep 13, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2021 | Aug 10, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2021 | May 20, 2021 |
| 8-K |
Current report
Results of operations
|
May 12, 2021 | May 12, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 15, 2021 | Mar 15, 2021 |
| 8-K |
Current report
Officer or director change
|
Mar 3, 2021 | Feb 25, 2021 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Feb 18, 2021 | Feb 11, 2021 |
| 8-K |
Current report
Other events
|
Jan 12, 2021 | Jan 11, 2021 |
| 8-K |
Current report
Officer or director change
|
Dec 21, 2020 | Dec 16, 2020 |
| 8-K |
Current report
Other events
|
Dec 7, 2020 | Dec 4, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2020 | Nov 10, 2020 |
| 8-K |
Current report
Officer or director change
|
Sep 24, 2020 | Sep 24, 2020 |
| 8-K |
Current report
Listing notice
|
Sep 22, 2020 | Sep 22, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 14, 2020 | Sep 14, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2020 | Aug 11, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jun 17, 2020 | Jun 16, 2020 |
| 8-K |
Current report
Results of operations
|
May 12, 2020 | May 12, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 12, 2020 | Mar 11, 2020 |
| 8-K |
Current report
Officer or director change
|
Mar 5, 2020 | Feb 28, 2020 |
| 8-K |
Current report
Officer or director change
|
Mar 2, 2020 | Feb 26, 2020 |
| 8-K |
Current report
Listing notice
|
Jan 10, 2020 | Jan 7, 2020 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2019 | Dec 10, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2019 | Nov 13, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 9, 2019 | Sep 9, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2019 | Aug 13, 2019 |
| 8-K |
Current report
Shareholder vote results
|
May 20, 2019 | May 16, 2019 |
| 8-K |
Current report
Results of operations
|
May 13, 2019 | May 13, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 27, 2019 | Mar 27, 2019 |
| 8-K |
Current report
Officer or director change
|
Mar 25, 2019 | Mar 25, 2019 |
| 8-K |
Current report
Results of operations
|
Mar 14, 2019 | Mar 14, 2019 |
| 8-K |
Current report
Officer or director change
|
Mar 4, 2019 | Mar 4, 2019 |
| 8-K |
Current report
Exit or restructuring costs
|
Jan 18, 2019 | Jan 18, 2019 |
| 8-K |
Current report
Officer or director change
|
Dec 14, 2018 | Dec 14, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2018 | Nov 13, 2018 |
| 8-K | Current report | Aug 13, 2018 | Aug 13, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 21, 2018 | May 16, 2018 |
| 8-K |
Current report
Results of operations
|
May 9, 2018 | May 9, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 26, 2018 | Mar 26, 2018 |
| 8-K |
Current report
Results of operations
|
Mar 12, 2018 | Mar 12, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 9, 2018 | Mar 8, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 2, 2018 | Feb 26, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2017 | Nov 13, 2017 |
| 8-K |
Current report
Officer or director change
|
Nov 7, 2017 | Nov 7, 2017 |
| 8-K |
Current report
Other events
|
Oct 5, 2017 | Oct 5, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 20, 2017 | Sep 20, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2017 | Aug 14, 2017 |
| 8-K/A |
Amended current report
Exit or restructuring costs
|
Aug 2, 2017 | Jul 27, 2017 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 25, 2017 | Jul 19, 2017 |
| 8-K |
Current report
Exit or restructuring costs
|
Jul 5, 2017 | Jun 28, 2017 |
| 8-K |
Current report
Listing notice
|
May 23, 2017 | May 16, 2017 |
| 8-K |
Current report
Shareholder vote results
|
May 19, 2017 | May 18, 2017 |
| 8-K |
Current report
Results of operations
|
May 11, 2017 | May 11, 2017 |
| 8-K |
Current report
Results of operations
|
Mar 14, 2017 | Mar 14, 2017 |
| 8-K |
Current report
Officer or director change
|
Feb 10, 2017 | Feb 10, 2017 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2016 | Nov 8, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2016 | Aug 9, 2016 |
| 8-K |
Current report
Shareholder vote results
|
May 23, 2016 | May 19, 2016 |
| 8-K |
Current report
Results of operations
|
May 10, 2016 | May 10, 2016 |
| 8-K |
Current report
Results of operations
|
Mar 23, 2016 | Mar 23, 2016 |
| 8-K |
Current report
Officer or director change
|
Mar 4, 2016 | Mar 1, 2016 |
| 8-K |
Current report
Listing notice, Officer or director change
|
Feb 3, 2016 | Jan 22, 2016 |
| 8-K |
Current report
Officer or director change
|
Jan 26, 2016 | Jan 22, 2016 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2015 | Nov 5, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2015 | Aug 10, 2015 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jun 1, 2015 | May 28, 2015 |
| 8-K |
Current report
Shareholder vote results
|
May 28, 2015 | May 21, 2015 |
| 8-K |
Current report
Results of operations
|
May 11, 2015 | May 11, 2015 |
| 8-K |
Current report
Results of operations
|
Mar 16, 2015 | Mar 16, 2015 |
| 8-K |
Current report
Officer or director change
|
Mar 13, 2015 | Mar 10, 2015 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2014 | Nov 6, 2014 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 19, 2014 | Sep 18, 2014 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2014 | Aug 11, 2014 |
| 8-K |
Current report
Officer or director change
|
Aug 7, 2014 | Aug 4, 2014 |
| 8-K |
Current report
Other events
|
Jul 17, 2014 | Jul 17, 2014 |
| 8-K |
Current report
Shareholder vote results
|
May 28, 2014 | May 22, 2014 |
| 8-K |
Current report
Results of operations
|
May 12, 2014 | May 12, 2014 |
| 8-K |
Current report
Material agreement, Other events
|
May 1, 2014 | Apr 28, 2014 |
| 8-K |
Current report
Officer or director change
|
Mar 17, 2014 | Mar 12, 2014 |
| 8-K |
Current report
Results of operations
|
Mar 10, 2014 | Mar 10, 2014 |
| 8-K |
Current report
Officer or director change
|
Feb 27, 2014 | Feb 25, 2014 |
| 8-K |
Current report
Officer or director change
|
Jan 6, 2014 | Jan 6, 2014 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2013 | Nov 12, 2013 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2013 | Aug 7, 2013 |
| 8-K |
Current report
Officer or director change
|
May 30, 2013 | May 23, 2013 |
| 8-K |
Current report
Shareholder vote results
|
May 28, 2013 | May 23, 2013 |
| 8-K |
Current report
Results of operations
|
May 7, 2013 | May 7, 2013 |
| 8-K |
Current report
Officer or director change
|
Apr 16, 2013 | Apr 10, 2013 |
| 8-K/A |
Amended current report
Officer or director change
|
Apr 16, 2013 | Mar 15, 2013 |
| 8-K |
Current report
Officer or director change
|
Mar 21, 2013 | Mar 15, 2013 |
| 8-K |
Current report
Results of operations
|
Mar 19, 2013 | Mar 19, 2013 |
| 8-K |
Current report
Officer or director change
|
Dec 11, 2012 | Dec 5, 2012 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2012 | Nov 5, 2012 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2012 | Aug 6, 2012 |
| 8-K |
Current report
Shareholder vote results
|
May 29, 2012 | May 24, 2012 |
| 8-K |
Current report
Results of operations
|
May 8, 2012 | May 8, 2012 |
| 8-K |
Current report
Officer or director change
|
Mar 15, 2012 | Mar 9, 2012 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Mar 15, 2012 | Aug 4, 2011 |
| 8-K |
Current report
Results of operations
|
Mar 5, 2012 | Mar 5, 2012 |
| 8-K |
Current report
Officer or director change
|
Dec 16, 2011 | Dec 14, 2011 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2011 | Nov 7, 2011 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2011 | Aug 8, 2011 |
| 8-K |
Current report
Officer or director change
|
Aug 8, 2011 | Aug 3, 2011 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2011 | May 19, 2011 |
| 8-K |
Current report
Other events
|
May 10, 2011 | May 10, 2011 |
| 8-K |
Current report
Results of operations
|
May 10, 2011 | May 9, 2011 |
| 8-K |
Current report
Officer or director change
|
Mar 28, 2011 | Mar 22, 2011 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2011 | Mar 9, 2011 |
| 8-K |
Current report
Material agreement
|
Feb 16, 2011 | Feb 15, 2011 |
| 8-K |
Current report
Officer or director change
|
Dec 23, 2010 | Dec 21, 2010 |
| 8-K |
Current report
Officer or director change
|
Dec 13, 2010 | Dec 9, 2010 |
| 8-K |
Current report
Officer or director change
|
Sep 20, 2010 | Sep 20, 2010 |
| 8-K |
Current report
Auditor change
|
Aug 2, 2010 | Jul 28, 2010 |
| 8-K/A |
Amended current report
Auditor change
|
Jul 22, 2010 | Jul 12, 2010 |
| 8-K |
Current report
Officer or director change
|
Jul 15, 2010 | Jul 13, 2010 |
| 8-K |
Current report
Auditor change
|
Jul 15, 2010 | Jul 12, 2010 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2010 | May 20, 2010 |
| 8-K |
Current report
Material agreement
|
Apr 5, 2010 | Apr 1, 2010 |
| 8-K |
Current report
Officer or director change
|
Apr 5, 2010 | Apr 1, 2010 |
| 8-K |
Current report
Results of operations
|
Mar 4, 2010 | Mar 3, 2010 |
| 8-K |
Current report
Officer or director change
|
Feb 9, 2010 | Feb 8, 2010 |
| 8-K |
Current report
Material agreement
|
Jan 5, 2010 | Jan 1, 2010 |
| 8-K |
Current report
Officer or director change
|
Jan 4, 2010 | Dec 29, 2009 |
| 8-K |
Current report
Material agreement
|
Dec 18, 2009 | Dec 10, 2009 |
| 8-K |
Current report
Agreement ended
|
Jul 2, 2009 | Jun 30, 2009 |
| 8-K |
Current report
Material agreement
|
May 27, 2009 | May 20, 2009 |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Mar 20, 2009 | Jan 5, 2009 |
| 8-K |
Current report
Material agreement
|
Mar 19, 2009 | Mar 13, 2009 |
| 8-K |
Current report
Officer or director change
|
Feb 5, 2009 | Feb 4, 2009 |
| 8-K |
Current report
Acquisition or sale of assets
|
Jan 8, 2009 | Jan 5, 2009 |
| 8-K |
Current report
Officer or director change
|
Dec 16, 2008 | Dec 10, 2008 |
| 8-K |
Current report
Material agreement
|
Dec 8, 2008 | Dec 5, 2008 |
| 8-K |
Current report
Material agreement
|
Oct 9, 2008 | Oct 6, 2008 |
| 8-K |
Current report
Other events
|
Sep 30, 2008 | Sep 25, 2008 |
| 8-K |
Current report
Material agreement
|
May 29, 2008 | May 22, 2008 |
| 8-K |
Current report
Officer or director change
|
May 2, 2008 | Apr 30, 2008 |
| 8-K |
Current report
Officer or director change
|
Feb 26, 2008 | Feb 21, 2008 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 9, 2007 | Aug 2, 2007 |
| 8-K |
Current report
Material agreement
|
Jun 21, 2007 | Jun 16, 2007 |
| 8-K |
Current report
Material agreement
|
Feb 7, 2007 | Feb 1, 2007 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Oct 5, 2006 | Sep 30, 2006 |
| 8-K |
Current report
Auditor change
|
Aug 21, 2006 | Aug 15, 2006 |
| 8-K |
Current report
Material agreement
|
Aug 10, 2006 | Aug 4, 2006 |
| 8-K |
Current report
Officer or director change
|
Apr 7, 2006 | Apr 5, 2006 |
| 8-K |
Current report
Officer or director change
|
Mar 6, 2006 | Feb 28, 2006 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 2, 2005 | Nov 2, 2005 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 1, 2005 | Sep 1, 2005 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 3, 2005 | Aug 3, 2005 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 3, 2005 | Mar 3, 2005 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 2, 2004 | Nov 2, 2004 |
| 8-K | Current report | May 6, 2004 | May 6, 2004 |
| 8-K | Current report | Mar 4, 2004 | Mar 1, 2004 |
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
- Industrial & Commercial Fans & Blowers & Air Purifing Equip (SIC 3564)
- Listed as
- FTEK (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Warrenville, IL
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 846913
- Former names
- FUEL TECH N V (until Oct 5, 2006)
Other Industrial & Commercial Fans & Blowers & Air Purifing Equip companies
- Madison Air Solutions Corp MAIR
- DONALDSON Co INC DCI
- Ceco Environmental Corp CECO
- Perma-Pipe International Holdings, Inc. PPIH
- Kronos Advanced Technologies Inc KNOS
All 6 Industrial & Commercial Fans & Blowers & Air Purifing Equip companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.