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ClearSign Technologies Corp

CLIR Clue Score69
United States Fiscal year ends December CIK 0001434524
3.21
+3.22%
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
3.21 on 9 Oct 2026
7 4 0 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $0.92 14 Oct 2025 $1.01 15 Oct 2025 $0.97 16 Oct 2025 $0.87 17 Oct 2025 $0.85 20 Oct 2025 $0.95 21 Oct 2025 $0.86 22 Oct 2025 $0.83 23 Oct 2025 $0.95 24 Oct 2025 $0.89 27 Oct 2025 $0.84 28 Oct 2025 $0.91 29 Oct 2025 $0.90 30 Oct 2025 $0.88 31 Oct 2025 $0.87 3 Nov 2025 $0.85 4 Nov 2025 $0.86 5 Nov 2025 $0.92 6 Nov 2025 $0.90 7 Nov 2025 $0.93 10 Nov 2025 $0.93 11 Nov 2025 $0.86 12 Nov 2025 $0.83 13 Nov 2025 $0.87 14 Nov 2025 $0.88 17 Nov 2025 $0.83 18 Nov 2025 $0.83 19 Nov 2025 $0.86 20 Nov 2025 $0.82 21 Nov 2025 $0.81 24 Nov 2025 $0.78 25 Nov 2025 $0.75 26 Nov 2025 $0.74 28 Nov 2025 $0.74 1 Dec 2025 $0.72 2 Dec 2025 $0.72 3 Dec 2025 $0.77 4 Dec 2025 $0.76 5 Dec 2025 $0.77 8 Dec 2025 $0.75 9 Dec 2025 $0.75 10 Dec 2025 $0.68 11 Dec 2025 $0.61 12 Dec 2025 $0.66 15 Dec 2025 $0.58 16 Dec 2025 $0.59 17 Dec 2025 $0.55 18 Dec 2025 $0.59 19 Dec 2025 $0.57 22 Dec 2025 $0.58 23 Dec 2025 $0.60 24 Dec 2025 $0.63 26 Dec 2025 $0.61 29 Dec 2025 $0.58 30 Dec 2025 $0.56 31 Dec 2025 $0.56 2 Jan 2026 $0.57 5 Jan 2026 $0.64 6 Jan 2026 $0.60 7 Jan 2026 $0.77 8 Jan 2026 $0.73 9 Jan 2026 $0.78 12 Jan 2026 $0.74 13 Jan 2026 $0.77 14 Jan 2026 $0.75 15 Jan 2026 $0.79 16 Jan 2026 $0.76 20 Jan 2026 $0.75 21 Jan 2026 $0.68 22 Jan 2026 $0.72 23 Jan 2026 $0.70 26 Jan 2026 $0.70 27 Jan 2026 $0.67 28 Jan 2026 $0.62 29 Jan 2026 $0.60 30 Jan 2026 $0.60 2 Feb 2026 $0.60 3 Feb 2026 $0.61 4 Feb 2026 $0.59 5 Feb 2026 $0.57 6 Feb 2026 $0.58 9 Feb 2026 $0.66 10 Feb 2026 $0.61 11 Feb 2026 $0.58 12 Feb 2026 $0.61 13 Feb 2026 $0.61 17 Feb 2026 $0.63 18 Feb 2026 $0.61 19 Feb 2026 $0.62 20 Feb 2026 $0.59 23 Feb 2026 $0.59 24 Feb 2026 $0.59 25 Feb 2026 $0.58 26 Feb 2026 $0.56 27 Feb 2026 $0.56 2 Mar 2026 $0.56 3 Mar 2026 $0.55 4 Mar 2026 $0.54 5 Mar 2026 $0.52 6 Mar 2026 $0.54 9 Mar 2026 $0.54 10 Mar 2026 $0.57 11 Mar 2026 $0.45 12 Mar 2026 $0.44 13 Mar 2026 $0.43 16 Mar 2026 $4.36 17 Mar 2026 $4.04 18 Mar 2026 $3.73 19 Mar 2026 $3.61 20 Mar 2026 $3.46 23 Mar 2026 $3.60 24 Mar 2026 $3.53 25 Mar 2026 $3.57 26 Mar 2026 $3.72 27 Mar 2026 $3.74 30 Mar 2026 $3.85 31 Mar 2026 $4.36 1 Apr 2026 $4.71 2 Apr 2026 $4.83 6 Apr 2026 $6.94 7 Apr 2026 $6.15 8 Apr 2026 $6.47 9 Apr 2026 $6.18 10 Apr 2026 $5.29 13 Apr 2026 $5.39 14 Apr 2026 $5.38 15 Apr 2026 $5.84 16 Apr 2026 $5.33 17 Apr 2026 $5.45 20 Apr 2026 $5.41 21 Apr 2026 $5.40 22 Apr 2026 $5.59 23 Apr 2026 $5.16 24 Apr 2026 $5.00 27 Apr 2026 $5.23 28 Apr 2026 $5.33 29 Apr 2026 $5.37 30 Apr 2026 $5.00 1 May 2026 $5.12 4 May 2026 $5.06 5 May 2026 $4.91 6 May 2026 $4.91 7 May 2026 $4.83 8 May 2026 $4.54 11 May 2026 $4.36 12 May 2026 $4.55 13 May 2026 $4.45 14 May 2026 $5.21 15 May 2026 $4.71 18 May 2026 $4.41 19 May 2026 $4.60 20 May 2026 $4.90 21 May 2026 $5.01 22 May 2026 $4.85 26 May 2026 $4.63 27 May 2026 $4.45 28 May 2026 $4.56 29 May 2026 $4.63 1 Jun 2026 $4.47 2 Jun 2026 $4.46 3 Jun 2026 $4.38 4 Jun 2026 $4.28 5 Jun 2026 $3.94 8 Jun 2026 $4.15 9 Jun 2026 $4.16 10 Jun 2026 $4.19 11 Jun 2026 $4.17 12 Jun 2026 $4.08 15 Jun 2026 $4.14 16 Jun 2026 $4.12 17 Jun 2026 $4.05 18 Jun 2026 $3.79 22 Jun 2026 $3.72 23 Jun 2026 $3.71 24 Jun 2026 $3.52 25 Jun 2026 $3.39 26 Jun 2026 $3.62 29 Jun 2026 $3.64 30 Jun 2026 $3.67 1 Jul 2026 $4.12 2 Jul 2026 $4.06 6 Jul 2026 $4.10 7 Jul 2026 $3.84 8 Jul 2026 $3.70 9 Jul 2026 $3.75 10 Jul 2026 $3.72 13 Jul 2026 $3.62 14 Jul 2026 $3.71 15 Jul 2026 $3.72 16 Jul 2026 $3.64 17 Jul 2026 $3.62 20 Jul 2026 $3.37 21 Jul 2026 $3.35 22 Jul 2026 $3.25 23 Jul 2026 $3.35 24 Jul 2026 $3.49 27 Jul 2026 $3.98 28 Jul 2026 $4.04 29 Jul 2026 $4.02 30 Jul 2026 $3.90 31 Jul 2026 $3.86 3 Aug 2026 $3.96 4 Aug 2026 $4.00 5 Aug 2026 $3.89 6 Aug 2026 $3.84 7 Aug 2026 $3.75 10 Aug 2026 $3.91 11 Aug 2026 $4.17 12 Aug 2026 $4.13 13 Aug 2026 $4.25 14 Aug 2026 $4.65 17 Aug 2026 $4.56 18 Aug 2026 $4.67 19 Aug 2026 $4.40 20 Aug 2026 $4.69 21 Aug 2026 $4.48 24 Aug 2026 $4.84 25 Aug 2026 $4.70 26 Aug 2026 $4.66 27 Aug 2026 $4.53 28 Aug 2026 $4.47 31 Aug 2026 $4.26 1 Sep 2026 $4.15 2 Sep 2026 $4.25 3 Sep 2026 $4.10 4 Sep 2026 $3.91 8 Sep 2026 $4.31 9 Sep 2026 $4.22 10 Sep 2026 $4.04 11 Sep 2026 $4.03 14 Sep 2026 $3.85 15 Sep 2026 $4.04 16 Sep 2026 $3.52 17 Sep 2026 $3.61 18 Sep 2026 $3.85 21 Sep 2026 $3.79 22 Sep 2026 $3.75 23 Sep 2026 $3.54 24 Sep 2026 $3.46 25 Sep 2026 $3.45 28 Sep 2026 $3.65 29 Sep 2026 $3.73 30 Sep 2026 $3.55 1 Oct 2026 $3.55 2 Oct 2026 $3.51 5 Oct 2026 $3.30 6 Oct 2026 $3.30 7 Oct 2026 $3.30 8 Oct 2026 $3.11 9 Oct 2026 $3.21 Silva Gil Todd Director Bought $8.71K 16 Mar 2026 · at $4.36 Silva Gil Todd Director Bought $8.40K 17 Mar 2026 · at $4.20 · 100% of stake Silva Gil Todd Director Bought $10.57K 23 Apr 2026 · at $5.28 · 50.0% of stake PASQUESI JOHN M 10% owner Bought $1.77M 22 Jul 2026 · at $3.54 · 59.3% of stake
4 buys0 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$5.23M
Net income
$5.50M
Free cash flow
$4.74M
Gross margin
27.2%
Operating margin
-127.5%
Net margin
-105.0%
Return on equity
-57.7%
Return on capital
-55.3%
Debt to equity
0.00
Revenue growth, 1 yr
45.6%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
0K -7M FY20 Fiscal year 2020 Revenue $0.00 Net income $6.88M Margin n/a 607K -8M FY21 Fiscal year 2021 Revenue $607.00K Net income $7.89M Margin -1,300.0% 374K -6M FY22 Fiscal year 2022 Revenue $374.00K Net income $5.76M Margin -1,539.6% · growth -38.4% 2M -5M FY23 Fiscal year 2023 Revenue $2.40M Net income $5.19M Margin -216.1% · growth +542.5% 4M -5M FY24 Fiscal year 2024 Revenue $3.60M Net income $5.30M Margin -147.4% · growth +49.6% 5M -5M FY25 Fiscal year 2025 Revenue $5.23M Net income $5.50M Margin -105.0% · growth +45.6%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
22 Jul 2026 PASQUESI JOHN M
10% owner
Bought $1.77M 59.3%
23 Apr 2026 Silva Gil Todd
Director
Bought $10.57K 50.0%
17 Mar 2026 Silva Gil Todd
Director
Bought $8.40K 100%
16 Mar 2026 Silva Gil Todd
Director
Bought $8.71K opened
24 Jun 2024 HOFFMAN Robert Thurston Sr
10% owner
Bought $3.05M 54.1%
8 Jul 2022 HOFFMAN Robert Thurston Sr
Director
Bought $1.77M 26.6%