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
S-8 POS Form s-8 pos Apr 2, 2025 —
S-8 Employee stock plan registration Apr 2, 2025 —
424B3 Prospectus Apr 1, 2021 —
S-3/A Amendment no. 1 to form s-3 Mar 26, 2021 —
S-3 Shelf registration Feb 26, 2021 —
S-8 Employee stock plan registration Aug 29, 2018 —
S-8 POS Filing Jan 9, 2015 —
S-8 Employee stock plan registration Jan 9, 2015 —
S-8 Employee stock plan registration Oct 2, 2006 —
S-4/A Form s-4/a Aug 16, 2006 —
S-4/A Form s-4/a Aug 7, 2006 —
S-4 Registration for a merger or exchange Jun 5, 2006 —

Showing 12 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.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

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

All 6 Industrial & Commercial Fans & Blowers & Air Purifing Equip companies

Source: SEC EDGAR filings. This is company-reported data, not investment advice.