Stock Fundamentals

Company Information

Company Name
ClearSign Combustion Corporation
Sector
Industrials
Industry
Pollution & Treatment Controls
Exchange
NASDAQ
ISIN: US1850641028
CIK: 0001434524
CUSIP: 185064102
Currency: USD
Full Time Employees: 15
Phone: 918 500 7312
Fiscal Year End: December
IPO Date: Apr 25, 2012
Description:

ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems in the United States and the People's Republic of China. The company's technologies include ClearSign core burner technology consists of an industrial burner body and a downstream porous ceramic or metal flame stabilizing structure; ClearSign core process burner technology that provides a direct burner replacement for traditional refinery process heaters; ClearSign core boiler burner technology; ClearSign core flaring burners that can be used to provide a flare product with extremely low nitrogen oxide emissions; and ClearSign eye flame sensor, an electrical flame sensor for industrial applications. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. ClearSign Technologies Corporation was formerly known as ClearSign Combustion Corporation and changed its name to ClearSign Technologies Corporation in November 2019. The company was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.

Address:

8023 East 63 Place, Tulsa, OK, United States, 74133

Directors & Officers

Name Title Year Born
Dr. Colin James Deller Ph.D. CEO & Director 1968
Mr. Brent Hinds CPA CFO & Corporate Secretary 1979
Mr. Matthew Martin Chief Technology Officer NA
Mr. Stephen Michael Sock Senior Vice President of Business Development NA

Insider Trading

Date Insider Name Title Transaction Type Shares Price Value
Mar 16, 2026 Gil Todd Silva N/A Purchase 2.00K $4.36 $8.72K

Institutional Holders

Holder Name Shares Date Reported % Out Value % Change
Vanguard Group Inc 1.32M Dec 31, 2025 2.45% $0.00 3.55%
Massey, Quick & Co. LLC 60.31K Mar 31, 2026 1.12% $0.01 -90.00%
Geode Capital Management, LLC 57.68K Mar 31, 2026 1.07% $0.00 -88.97%
CAMBRIDGE Invest RESEARCH ADVISORS, INC. 44.30K Mar 31, 2026 0.82% $0.00 -90.00%
Beacon Pointe Advisors, LLC 27.17K Mar 31, 2026 0.50% $0.00 0.00%
BlackRock Inc 19.50K Mar 31, 2026 0.36% $0.00 -90.21%
HighTower Advisors, LLC 12.68K Mar 31, 2026 0.23% $0.00 -90.00%
Creative Planning Inc 12.36K Mar 31, 2026 0.23% $0.00 -90.92%
DDD Partners, LLC 12.00K Mar 31, 2026 0.22% $0.00 -90.00%
Rockefeller Capital Management L.P. 8.12K Mar 31, 2026 0.15% $0.00 -90.00%
Northwestern Mutual Wealth Management Co 7.17K Mar 31, 2026 0.13% $0.00 -90.00%
Wells Fargo & Co 2.13K Mar 31, 2026 0.04% $0.00 -89.91%
Gleason Group, Inc. 1.80K Mar 31, 2026 0.03% $0.00 -90.00%
Centerpoint Advisors, LLC 1.56K Mar 31, 2026 0.03% $0.00 -90.06%
Tower Research Capital LLC 1.05K Mar 31, 2026 0.02% $0.00 -92.42%
Deutsche Bank AG 400.00 Mar 31, 2026 0.01% $0.00 -90.00%
TUCKER ASSET MANAGEMENT LLC 39.00 Dec 31, 2025 0.00% $0.00 0.00%
SBI Securities Co Ltd 11.00 Mar 31, 2026 0.00% $0.00 -89.32%
Goldman Sachs Asset Management, L.P. 0.00 Dec 31, 2025 0.00% $0.00 -100.00%
State Street Corp 0.00 Mar 31, 2026 0.00% $0.00 -100.00%

Shares Statistics

Shares Outstanding: 6.19M
Shares Float: 4.46M
% Insiders: 514.10%
% Institutions: 2,009.60%
Short % Float: 0.58%

Fund Holdings

Rank Holder Name Shares Held % of Shares Change Date Reported
1 Extended Equity Market Fund E 107.82K 0.20% ▲ 0.00% Dec 31, 2025
2 Extended Equity Market Fund B 107.82K 0.20% ▲ 0.00% Dec 31, 2025
3 Vanguard Total Stock Mkt Idx Inv 59.03K 1.09% ▲ 0.00% Apr 30, 2026
4 Vanguard Institutional Extnd Mkt Idx Tr 46.40K 0.86% ▲ 0.00% Apr 30, 2026
5 Fidelity Extended Market Index 28.68K 0.53% ▼ 87.70% Mar 31, 2026
6 Blackrock Extended Mkt Fund CF 10.78K 0.20% ▲ 0.00% Apr 30, 2026
7 Fidelity Total Market Index 10.24K 0.19% ▼ 90.00% Mar 31, 2026
8 BlackRock Extended Equity Market Fund K 9.18K 0.17% ▼ 90.07% Mar 31, 2026
9 Fidelity Series Total Market Index 7.14K 0.13% ▼ 90.00% Mar 31, 2026
10 Spartan Extended Market Index Pool F 6.31K 0.12% ▼ 89.84% Mar 31, 2026

Valuation Metrics

Enterprise Value: $16.60M
Trailing P/E: 0.00
Forward P/E: 72.99

Financial Highlights

Market Cap: $27.11M
EBITDA: $-6.51M
PEG Ratio: $0.00
Book Value: $1.41
Earnings/Share: $-0.11
Profit Margin: -111.66%
Operating Margin: -1,193.19%
ROA (TTM): -34.33%
ROE (TTM): -57.06%
Revenue (TTM): $5.02M
Revenue/Share (TTM): $0.90
Earnings Growth (YOY): 0.00%
Revenue Growth (YOY): -52.40%

Stock Price History

1 Year Price History

2 Years Price History

5 Years Price History

10 Years Price History

Financial Charts

Revenue & Net Income (Yearly)

Revenue & Net Income (Quarterly)

Operating Expenses (Yearly)

Operating Expenses (Quarterly)

Balance Sheet (Yearly)

Balance Sheet (Quarterly)

Assets Breakdown (Yearly)

Assets Breakdown (Quarterly)

Liabilities Breakdown (Yearly)

Liabilities Breakdown (Quarterly)

Earnings Per Share (EPS) History

Financial Ratios

Balance Sheet (Yearly)

Financial Ratios

Date Current Ratio Debt/Equity Debt/Assets Interest Coverage Debt/EBITDA
2025-12-31 4.34x 0.01x 0.22x N/A -0.02x
2024-12-31 7.28x 0.01x 0.14x N/A -0.01x
2023-12-31 2.89x 0.01x 0.32x N/A -0.01x
2022-12-31 8.49x 0.01x 0.13x -30.34x -0.02x
2021-12-31 10.98x 0.02x 0.12x -8,145.00x -0.03x
2020-12-31 8.69x 0.04x 0.14x N/A -0.06x
2019-12-31 6.92x 0.02x 0.16x N/A -0.02x
2018-12-31 10.03x 0.03x 0.09x N/A -0.06x
2017-12-31 1.17x 0.21x 0.42x N/A -0.05x
2016-12-31 1.23x 0.22x 0.41x N/A -0.04x
2015-12-31 6.89x 0.00x 0.11x N/A 0.00x
2014-12-31 1.58x 0.00x 0.36x N/A 0.00x
2013-12-31 3.18x 0.00x 0.19x N/A 0.00x
2012-12-31 18.21x 0.00x 0.05x -4,210.00x 0.00x
2011-12-31 1.84x 0.05x 0.47x -18,857.34x -0.02x
2010-12-31 0.10x 0.00x 4.15x N/A 0.00x
2009-12-31 0.00x 0.00x 4.34x N/A 0.00x

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