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 |
|---|---|---|---|
| EFFECT | Filing | Mar 31, 2021 | — |
| CORRESP | Letter to the SEC | Mar 29, 2021 | — |
| CORRESP | Letter to the SEC | Mar 15, 2021 | — |
| UPLOAD | Letter from the SEC | Mar 2, 2021 | — |
| D | Filing | Feb 26, 2021 | — |
| DEFR14A | Definitive proxy statement | Apr 4, 2016 | — |
| NT 10-K | Form 12b-25 | Mar 18, 2013 | Dec 31, 2012 |
| SC TO-I/A | Filing | Jun 30, 2011 | — |
| SC TO-I | Filing | Jun 1, 2011 | — |
| SC TO-C | Form 8-k | May 10, 2011 | — |
| SC TO-C | Filing | May 4, 2011 | — |
| SC TO-C | Filing | Mar 16, 2011 | — |
| UPLOAD | Letter from the SEC | Jul 23, 2010 | — |
| UPLOAD | Letter from the SEC | Jul 16, 2010 | — |
| UPLOAD | Letter from the SEC | Feb 23, 2010 | — |
| CORRESP | Letter to the SEC | Jan 26, 2010 | — |
| CORRESP | Letter to the SEC | Dec 16, 2009 | — |
| UPLOAD | Letter from the SEC | Nov 24, 2009 | — |
| CORRESP | Letter to the SEC | Nov 6, 2009 | — |
| UPLOAD | Letter from the SEC | Oct 28, 2009 | — |
| CORRESP | Letter to the SEC | Oct 2, 2009 | — |
| UPLOAD | Letter from the SEC | Sep 3, 2009 | — |
| CT ORDER | Filing | Mar 19, 2009 | — |
| UPLOAD | Letter from the SEC | Jan 17, 2007 | — |
| CORRESP | Letter to the SEC | Jan 16, 2007 | — |
| CORRESP | Letter to the SEC | Jan 10, 2007 | — |
| UPLOAD | Letter from the SEC | Dec 19, 2006 | — |
| 8-A12B | Form 8-a12b | Oct 2, 2006 | — |
| EFFECT | Filing | Aug 16, 2006 | — |
| CORRESP | Letter to the SEC | Aug 14, 2006 | — |
| UPLOAD | Letter from the SEC | Aug 11, 2006 | — |
| UPLOAD | Letter from the SEC | Jun 23, 2006 | — |
| DEFR14A | Form defr14a | May 6, 2004 | — |
Showing 33 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
- 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.