Stocks · Industrials · Industrial & Commercial Fans & Blowers & Air Purifing Equip

FUEL TECH, INC.

FTEK Clue Score56
United States Fiscal year ends December CIK 0000846913
$1.65 +0.00% Close, 12 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
1.65 on 12 Oct 2026
3 2 1 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $2.95 14 Oct 2025 $3.08 15 Oct 2025 $3.12 16 Oct 2025 $3.19 17 Oct 2025 $3.00 20 Oct 2025 $3.10 21 Oct 2025 $3.00 22 Oct 2025 $2.85 23 Oct 2025 $2.87 24 Oct 2025 $2.81 27 Oct 2025 $2.74 28 Oct 2025 $2.72 29 Oct 2025 $2.64 30 Oct 2025 $2.56 31 Oct 2025 $2.48 3 Nov 2025 $2.64 4 Nov 2025 $2.52 5 Nov 2025 $2.20 6 Nov 2025 $2.12 7 Nov 2025 $2.11 10 Nov 2025 $2.07 11 Nov 2025 $2.07 12 Nov 2025 $1.97 13 Nov 2025 $1.86 14 Nov 2025 $1.84 17 Nov 2025 $1.79 18 Nov 2025 $1.74 19 Nov 2025 $1.72 20 Nov 2025 $1.60 21 Nov 2025 $1.71 24 Nov 2025 $1.77 25 Nov 2025 $1.79 26 Nov 2025 $1.81 28 Nov 2025 $1.80 1 Dec 2025 $1.76 2 Dec 2025 $1.77 3 Dec 2025 $1.83 4 Dec 2025 $1.79 5 Dec 2025 $1.69 8 Dec 2025 $1.80 9 Dec 2025 $1.85 10 Dec 2025 $1.80 11 Dec 2025 $1.82 12 Dec 2025 $1.72 15 Dec 2025 $1.68 16 Dec 2025 $1.52 17 Dec 2025 $1.52 18 Dec 2025 $1.58 19 Dec 2025 $1.67 22 Dec 2025 $1.68 23 Dec 2025 $1.61 24 Dec 2025 $1.61 26 Dec 2025 $1.63 29 Dec 2025 $1.53 30 Dec 2025 $1.53 31 Dec 2025 $1.56 2 Jan 2026 $1.71 5 Jan 2026 $1.69 6 Jan 2026 $1.62 7 Jan 2026 $1.62 8 Jan 2026 $1.62 9 Jan 2026 $1.61 12 Jan 2026 $1.59 13 Jan 2026 $1.55 14 Jan 2026 $1.53 15 Jan 2026 $1.60 16 Jan 2026 $1.54 20 Jan 2026 $1.56 21 Jan 2026 $1.55 22 Jan 2026 $1.59 23 Jan 2026 $1.52 26 Jan 2026 $1.40 27 Jan 2026 $1.45 28 Jan 2026 $1.35 29 Jan 2026 $1.39 30 Jan 2026 $1.36 2 Feb 2026 $1.41 3 Feb 2026 $1.40 4 Feb 2026 $1.33 5 Feb 2026 $1.26 6 Feb 2026 $1.38 9 Feb 2026 $1.40 10 Feb 2026 $1.35 11 Feb 2026 $1.33 12 Feb 2026 $1.27 13 Feb 2026 $1.26 17 Feb 2026 $1.37 18 Feb 2026 $1.38 19 Feb 2026 $1.38 20 Feb 2026 $1.45 23 Feb 2026 $1.34 24 Feb 2026 $1.33 25 Feb 2026 $1.42 26 Feb 2026 $1.40 27 Feb 2026 $1.42 2 Mar 2026 $1.49 3 Mar 2026 $1.38 4 Mar 2026 $1.24 5 Mar 2026 $1.25 6 Mar 2026 $1.23 9 Mar 2026 $1.23 10 Mar 2026 $1.29 11 Mar 2026 $1.29 12 Mar 2026 $1.27 13 Mar 2026 $1.25 16 Mar 2026 $1.25 17 Mar 2026 $1.26 18 Mar 2026 $1.25 19 Mar 2026 $1.24 20 Mar 2026 $1.24 23 Mar 2026 $1.23 24 Mar 2026 $1.26 25 Mar 2026 $1.27 26 Mar 2026 $1.25 27 Mar 2026 $1.25 30 Mar 2026 $1.19 31 Mar 2026 $1.22 1 Apr 2026 $1.26 2 Apr 2026 $1.22 6 Apr 2026 $1.23 7 Apr 2026 $1.27 8 Apr 2026 $1.29 9 Apr 2026 $1.30 10 Apr 2026 $1.27 13 Apr 2026 $1.28 14 Apr 2026 $1.32 15 Apr 2026 $1.38 16 Apr 2026 $1.35 17 Apr 2026 $1.35 20 Apr 2026 $1.37 21 Apr 2026 $1.37 22 Apr 2026 $1.35 23 Apr 2026 $1.34 24 Apr 2026 $1.35 27 Apr 2026 $1.37 28 Apr 2026 $1.55 29 Apr 2026 $1.66 30 Apr 2026 $1.57 1 May 2026 $1.61 4 May 2026 $1.63 5 May 2026 $1.59 6 May 2026 $1.38 7 May 2026 $1.53 8 May 2026 $1.52 11 May 2026 $1.49 12 May 2026 $1.46 13 May 2026 $1.44 14 May 2026 $1.45 15 May 2026 $1.48 18 May 2026 $1.45 19 May 2026 $1.48 20 May 2026 $1.46 21 May 2026 $1.45 22 May 2026 $1.48 26 May 2026 $1.48 27 May 2026 $1.51 28 May 2026 $1.51 29 May 2026 $1.48 1 Jun 2026 $1.48 2 Jun 2026 $1.47 3 Jun 2026 $1.44 4 Jun 2026 $1.46 5 Jun 2026 $1.36 8 Jun 2026 $1.35 9 Jun 2026 $1.31 10 Jun 2026 $1.30 11 Jun 2026 $1.34 12 Jun 2026 $1.34 15 Jun 2026 $1.31 16 Jun 2026 $1.31 17 Jun 2026 $1.46 18 Jun 2026 $1.54 22 Jun 2026 $1.99 23 Jun 2026 $1.99 24 Jun 2026 $1.93 25 Jun 2026 $1.91 26 Jun 2026 $2.15 29 Jun 2026 $2.06 30 Jun 2026 $2.21 1 Jul 2026 $2.08 2 Jul 2026 $1.87 6 Jul 2026 $1.85 7 Jul 2026 $1.78 8 Jul 2026 $1.76 9 Jul 2026 $1.69 10 Jul 2026 $1.68 13 Jul 2026 $1.59 14 Jul 2026 $1.60 15 Jul 2026 $1.57 16 Jul 2026 $1.55 17 Jul 2026 $1.53 20 Jul 2026 $1.48 21 Jul 2026 $1.53 22 Jul 2026 $1.55 23 Jul 2026 $1.60 24 Jul 2026 $1.55 27 Jul 2026 $1.52 28 Jul 2026 $1.45 29 Jul 2026 $1.38 30 Jul 2026 $1.44 31 Jul 2026 $1.41 3 Aug 2026 $1.50 4 Aug 2026 $1.53 5 Aug 2026 $1.45 6 Aug 2026 $1.37 7 Aug 2026 $1.40 10 Aug 2026 $1.38 11 Aug 2026 $1.40 12 Aug 2026 $1.47 13 Aug 2026 $1.45 14 Aug 2026 $1.45 17 Aug 2026 $1.44 18 Aug 2026 $1.41 19 Aug 2026 $1.40 20 Aug 2026 $1.38 21 Aug 2026 $1.39 24 Aug 2026 $1.38 25 Aug 2026 $1.38 26 Aug 2026 $1.43 27 Aug 2026 $1.46 28 Aug 2026 $1.48 31 Aug 2026 $1.42 1 Sep 2026 $1.36 2 Sep 2026 $1.39 3 Sep 2026 $1.43 4 Sep 2026 $1.55 8 Sep 2026 $1.65 9 Sep 2026 $1.72 10 Sep 2026 $1.63 11 Sep 2026 $1.73 14 Sep 2026 $1.75 15 Sep 2026 $1.91 16 Sep 2026 $1.75 17 Sep 2026 $1.78 18 Sep 2026 $1.76 21 Sep 2026 $1.85 22 Sep 2026 $1.77 23 Sep 2026 $1.65 24 Sep 2026 $1.72 25 Sep 2026 $1.72 28 Sep 2026 $1.65 29 Sep 2026 $1.64 30 Sep 2026 $1.62 1 Oct 2026 $1.72 2 Oct 2026 $1.66 5 Oct 2026 $1.65 6 Oct 2026 $1.67 7 Oct 2026 $1.67 8 Oct 2026 $1.66 9 Oct 2026 $1.65 12 Oct 2026 $1.65 ARNONE VINCENT J President & CEO Bought $12.40K 6 Mar 2026 · at $1.24 · 1.9% of stake Nuggihalli Ramesh President & CEO Bought $2.00K 1 Sep 2026 · at $1.36
2 buys0 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$26.68M
Net income
$2.32M
Free cash flow
$2.34M
Gross margin
46.4%
Operating margin
-13.8%
Net margin
-8.7%
Return on equity
-5.8%
Return on capital
-7.1%
Debt to equity
0.02
Revenue growth, 1 yr
6.1%
Revenue growth, 5 yr
3.4% a year

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
23M -4M FY20 Fiscal year 2020 Revenue $22.55M Net income $4.28M Margin -19.0% 24M 54K FY21 Fiscal year 2021 Revenue $24.26M Net income $54.00K Margin 0.2% · growth +7.6% 27M -1M FY22 Fiscal year 2022 Revenue $26.94M Net income $1.44M Margin -5.4% · growth +11.0% 27M -2M FY23 Fiscal year 2023 Revenue $27.08M Net income $1.54M Margin -5.7% · growth +0.5% 25M -2M FY24 Fiscal year 2024 Revenue $25.13M Net income $1.94M Margin -7.7% · growth -7.2% 27M -2M FY25 Fiscal year 2025 Revenue $26.68M Net income $2.32M Margin -8.7% · growth +6.1%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
1 Sep 2026 Nuggihalli Ramesh
President & CEO
Bought $2.00K opened
6 Mar 2026 ARNONE VINCENT J
President & CEO
Bought $12.40K 1.9%
4 Jun 2025 Jones Sharon L
Director
Sold at will $21.04K 13.1%
28 Mar 2025 ARNONE VINCENT J
President & CEO
Bought $15.75K 3.2%
19 Nov 2024 Jones Sharon L
Director
Bought $8.66K 9.0%
18 Nov 2024 Jones Sharon L
Director
Bought $10.29K 12.4%