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TECOGEN INC.

TGEN Clue Score39
United States Fiscal year ends December CIK 0001537435
2.42
-2.02%
Close, 9 Oct 2026 · USD

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
2.42 on 9 Oct 2026
12 7 2 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $8.92 14 Oct 2025 $9.53 15 Oct 2025 $12.07 16 Oct 2025 $10.36 17 Oct 2025 $9.39 20 Oct 2025 $8.96 21 Oct 2025 $8.89 22 Oct 2025 $8.42 23 Oct 2025 $8.46 24 Oct 2025 $8.74 27 Oct 2025 $8.66 28 Oct 2025 $8.27 29 Oct 2025 $9.48 30 Oct 2025 $9.59 31 Oct 2025 $9.98 3 Nov 2025 $9.73 4 Nov 2025 $9.35 5 Nov 2025 $8.82 6 Nov 2025 $8.16 7 Nov 2025 $8.31 10 Nov 2025 $8.16 11 Nov 2025 $7.68 12 Nov 2025 $7.38 13 Nov 2025 $6.94 14 Nov 2025 $6.51 17 Nov 2025 $6.23 18 Nov 2025 $6.34 19 Nov 2025 $6.16 20 Nov 2025 $6.22 21 Nov 2025 $6.50 24 Nov 2025 $6.80 25 Nov 2025 $6.88 26 Nov 2025 $7.00 28 Nov 2025 $7.46 1 Dec 2025 $6.50 2 Dec 2025 $6.44 3 Dec 2025 $7.05 4 Dec 2025 $7.30 5 Dec 2025 $7.01 8 Dec 2025 $6.85 9 Dec 2025 $6.79 10 Dec 2025 $6.56 11 Dec 2025 $6.47 12 Dec 2025 $6.03 15 Dec 2025 $5.84 16 Dec 2025 $5.34 17 Dec 2025 $4.78 18 Dec 2025 $4.70 19 Dec 2025 $5.04 22 Dec 2025 $5.11 23 Dec 2025 $5.23 24 Dec 2025 $5.33 26 Dec 2025 $5.18 29 Dec 2025 $5.09 30 Dec 2025 $4.92 31 Dec 2025 $4.94 2 Jan 2026 $5.34 5 Jan 2026 $5.54 6 Jan 2026 $4.41 7 Jan 2026 $4.44 8 Jan 2026 $5.03 9 Jan 2026 $4.76 12 Jan 2026 $4.74 13 Jan 2026 $4.93 14 Jan 2026 $4.96 15 Jan 2026 $4.99 16 Jan 2026 $5.09 20 Jan 2026 $4.74 21 Jan 2026 $4.60 22 Jan 2026 $4.76 23 Jan 2026 $4.34 26 Jan 2026 $4.30 27 Jan 2026 $4.25 28 Jan 2026 $4.13 29 Jan 2026 $4.14 30 Jan 2026 $3.74 2 Feb 2026 $3.77 3 Feb 2026 $3.80 4 Feb 2026 $3.60 5 Feb 2026 $3.50 6 Feb 2026 $3.75 9 Feb 2026 $3.89 10 Feb 2026 $3.79 11 Feb 2026 $3.90 12 Feb 2026 $3.77 13 Feb 2026 $3.81 17 Feb 2026 $3.85 18 Feb 2026 $3.52 19 Feb 2026 $3.68 20 Feb 2026 $3.54 23 Feb 2026 $3.48 24 Feb 2026 $3.68 25 Feb 2026 $3.76 26 Feb 2026 $3.87 27 Feb 2026 $3.47 2 Mar 2026 $3.45 3 Mar 2026 $3.23 4 Mar 2026 $3.30 5 Mar 2026 $3.20 6 Mar 2026 $2.98 9 Mar 2026 $2.92 10 Mar 2026 $2.81 11 Mar 2026 $2.83 12 Mar 2026 $2.71 13 Mar 2026 $2.76 16 Mar 2026 $2.75 17 Mar 2026 $2.84 18 Mar 2026 $2.00 19 Mar 2026 $2.18 20 Mar 2026 $2.23 23 Mar 2026 $2.36 24 Mar 2026 $2.75 25 Mar 2026 $2.89 26 Mar 2026 $2.62 27 Mar 2026 $2.57 30 Mar 2026 $2.46 31 Mar 2026 $2.56 1 Apr 2026 $2.78 2 Apr 2026 $2.92 6 Apr 2026 $2.66 7 Apr 2026 $2.62 8 Apr 2026 $2.74 9 Apr 2026 $3.09 10 Apr 2026 $2.85 13 Apr 2026 $3.63 14 Apr 2026 $3.79 15 Apr 2026 $3.92 16 Apr 2026 $3.87 17 Apr 2026 $4.30 20 Apr 2026 $4.87 21 Apr 2026 $4.45 22 Apr 2026 $4.32 23 Apr 2026 $4.17 24 Apr 2026 $4.29 27 Apr 2026 $4.24 28 Apr 2026 $4.20 29 Apr 2026 $4.04 30 Apr 2026 $4.78 1 May 2026 $4.95 4 May 2026 $4.92 5 May 2026 $4.94 6 May 2026 $5.35 7 May 2026 $4.82 8 May 2026 $4.63 11 May 2026 $4.37 12 May 2026 $4.23 13 May 2026 $5.07 14 May 2026 $6.22 15 May 2026 $6.52 18 May 2026 $6.35 19 May 2026 $5.36 20 May 2026 $5.30 21 May 2026 $5.52 22 May 2026 $5.74 26 May 2026 $6.05 27 May 2026 $6.57 28 May 2026 $6.37 29 May 2026 $6.21 1 Jun 2026 $6.86 2 Jun 2026 $6.54 3 Jun 2026 $6.82 4 Jun 2026 $6.90 5 Jun 2026 $5.74 8 Jun 2026 $6.09 9 Jun 2026 $5.67 10 Jun 2026 $5.32 11 Jun 2026 $5.71 12 Jun 2026 $5.73 15 Jun 2026 $5.68 16 Jun 2026 $5.67 17 Jun 2026 $5.78 18 Jun 2026 $6.03 22 Jun 2026 $6.05 23 Jun 2026 $5.72 24 Jun 2026 $5.38 25 Jun 2026 $5.20 26 Jun 2026 $5.17 29 Jun 2026 $5.23 30 Jun 2026 $5.22 1 Jul 2026 $4.93 2 Jul 2026 $4.52 6 Jul 2026 $4.36 7 Jul 2026 $4.00 8 Jul 2026 $4.07 9 Jul 2026 $4.47 10 Jul 2026 $4.12 13 Jul 2026 $3.98 14 Jul 2026 $4.01 15 Jul 2026 $3.95 16 Jul 2026 $3.73 17 Jul 2026 $3.55 20 Jul 2026 $3.45 21 Jul 2026 $3.59 22 Jul 2026 $3.54 23 Jul 2026 $3.40 24 Jul 2026 $3.22 27 Jul 2026 $3.34 28 Jul 2026 $3.10 29 Jul 2026 $3.00 30 Jul 2026 $3.20 31 Jul 2026 $3.32 3 Aug 2026 $3.65 4 Aug 2026 $3.74 5 Aug 2026 $3.76 6 Aug 2026 $3.73 7 Aug 2026 $3.89 10 Aug 2026 $3.88 11 Aug 2026 $4.06 12 Aug 2026 $4.01 13 Aug 2026 $4.19 14 Aug 2026 $3.65 17 Aug 2026 $3.57 18 Aug 2026 $3.50 19 Aug 2026 $3.36 20 Aug 2026 $3.26 21 Aug 2026 $3.42 24 Aug 2026 $3.11 25 Aug 2026 $3.18 26 Aug 2026 $3.13 27 Aug 2026 $3.17 28 Aug 2026 $3.11 31 Aug 2026 $3.06 1 Sep 2026 $3.01 2 Sep 2026 $2.95 3 Sep 2026 $3.05 4 Sep 2026 $3.13 8 Sep 2026 $3.23 9 Sep 2026 $3.09 10 Sep 2026 $3.03 11 Sep 2026 $3.05 14 Sep 2026 $3.01 15 Sep 2026 $2.97 16 Sep 2026 $2.94 17 Sep 2026 $3.11 18 Sep 2026 $3.12 21 Sep 2026 $3.31 22 Sep 2026 $3.32 23 Sep 2026 $3.15 24 Sep 2026 $3.02 25 Sep 2026 $3.05 28 Sep 2026 $3.16 29 Sep 2026 $2.95 30 Sep 2026 $2.84 1 Oct 2026 $2.65 2 Oct 2026 $2.65 5 Oct 2026 $2.54 6 Oct 2026 $2.68 7 Oct 2026 $2.76 8 Oct 2026 $2.47 9 Oct 2026 $2.42 Rangesh Abinand Chief Executive Officer Bought $6.89K 20 Mar 2026 · at $2.30 · 4.7% of stake Deschenes Roger P. CAO Bought $22.30K 20 Mar 2026 · at $2.23 · 23.3% of stake Whiting John Kimball IV General Counsel & Secretary Bought $23.80K 23 Mar 2026 · at $2.38 · 79.3% of stake Lewis Earl Director Bought $14.41K 26 Mar 2026 · at $2.88 · 0.5% of stake Lewis Earl Director Bought $12.60K 27 Mar 2026 · at $2.52 · 0.5% of stake Hirsch Susan B Director Bought $25.40K 27 Mar 2026 · at $2.54 · 4.0% of stake Hirsch Susan B Director Bought $18.65K 13 Apr 2026 · at $3.73 · 1.9% of stake Ghoniem Ahmed Director Bought $10.00K 24 Apr 2026 · at $0.79
8 buys0 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$27.07M
Net income
$8.25M
Free cash flow
$10.31M
Gross margin
36.3%
Operating margin
-30.5%
Net margin
-30.5%
Return on equity
-38.1%
Return on capital
-30.1%
Revenue growth, 1 yr
19.7%
Revenue growth, 5 yr
-0.9% a year

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
28M -6M FY20 Fiscal year 2020 Revenue $28.25M Net income $6.15M Margin -21.8% 24M 4M FY21 Fiscal year 2021 Revenue $24.40M Net income $3.70M Margin 15.1% · growth -13.6% 25M -2M FY22 Fiscal year 2022 Revenue $25.00M Net income $2.45M Margin -9.8% · growth +2.5% 25M -5M FY23 Fiscal year 2023 Revenue $25.14M Net income $4.60M Margin -18.3% · growth +0.5% 23M -5M FY24 Fiscal year 2024 Revenue $22.62M Net income $4.76M Margin -21.0% · growth -10.0% 27M -8M FY25 Fiscal year 2025 Revenue $27.07M Net income $8.25M Margin -30.5% · growth +19.7%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
24 Apr 2026 Ghoniem Ahmed
Director
Bought $10.00K opened
13 Apr 2026 Hirsch Susan B
Director
Bought $18.65K 1.9%
27 Mar 2026 Hirsch Susan B
Director
Bought $25.40K 4.0%
27 Mar 2026 Lewis Earl
Director
Bought $12.60K 0.5%
26 Mar 2026 Lewis Earl
Director
Bought $14.41K 0.5%
23 Mar 2026 Whiting John Kimball IV
General Counsel & Secretary
Bought $23.80K 79.3%