CLIR

ClearSign Combustion Corporation

CLIR.US clearsign.com + Research + Basket
CIK 0001434524
Employees 16
Phone 918 500 7312
Fiscal year end December
IPO Apr 25, 2012
Address 8023 East 63 Place, Tulsa, OK, United States, 74133
2.46
-0.02 (-0.81%)
USD · NASDAQ
52-week range
2.12
9.80
Trading at 4% of the 52-week range
Market Cap
16.88M
P/E Ratio
0.00
Forward P/E
72.99
Book Value
1.56
Div. Yield
N/A
% Institutions
26.04%
% Insiders
4.68%

1 Year

-72.7%

3 Year

-69.7%

10 Year

-95.3%
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.

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People

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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

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

Shareholders

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Institutional Holders

Holder Name Shares Date Reported % Out Value % Change
Vanguard Capital Management, LLC 105.43K Jun 30, 2026 1.55% $0.00 0.00%
CAMBRIDGE Invest RESEARCH ADVISORS, INC. 88.60K Jun 30, 2026 1.30% $0.00 100.00%
Massey, Quick & Co. LLC 60.31K Jun 30, 2026 0.89% $0.01 0.00%
Geode Capital Management, LLC 51.46K Jun 30, 2026 0.76% $0.00 -10.79%
Beacon Pointe Advisors, LLC 27.17K Jun 30, 2026 0.40% $0.00 0.00%
Vanguard Fiduciary Trust Co 23.46K Jun 30, 2026 0.34% $0.00 0.00%
HighTower Advisors, LLC 22.66K Jun 30, 2026 0.33% $0.00 78.72%
Citadel Advisors Llc 20.57K Jun 30, 2026 0.30% $0.00 0.00%
BlackRock Inc 19.50K Jun 30, 2026 0.29% $0.00 0.00%
DDD Partners, LLC 12.00K Jun 30, 2026 0.18% $0.00 0.00%
Northern Trust Corp 10.08K Jun 30, 2026 0.15% $0.00 0.00%
Rockefeller Capital Management L.P. 8.12K Jun 30, 2026 0.12% $0.00 0.00%
Northwestern Mutual Wealth Management Co 7.17K Jun 30, 2026 0.11% $0.00 0.00%
Wells Fargo & Co 2.13K Jun 30, 2026 0.03% $0.00 0.00%
Gleason Group, Inc. 1.80K Jun 30, 2026 0.03% $0.00 0.00%
Centerpoint Advisors, LLC 1.56K Jun 30, 2026 0.02% $0.00 0.00%
Tower Research Capital LLC 1.52K Jun 30, 2026 0.02% $0.00 45.26%
Vanguard Global Advisers, LLC 1.35K Jun 30, 2026 0.02% $0.00 0.00%
Integrated Wealth Concepts LLC 687.00 Jun 30, 2026 0.01% $0.00 0.00%
Royal Bank of Canada 684.00 Jun 30, 2026 0.01% $0.00 0.00%

Fund Holdings

Rank Holder Name Shares Held % of Shares Change Date Reported
1 Vanguard MStar Total Stk Mkt Idx Invest 59.03K 0.87% ▲ 0.00% Sep 30, 2026
2 Fidelity Extended Market Index 23.22K 0.34% ▼ 0.54% Aug 31, 2026
3 Fidelity Total Market Index 10.24K 0.15% ▲ 0.00% Aug 31, 2026
4 Fidelity Series Total Market Index 7.14K 0.10% ▲ 0.00% Aug 31, 2026
5 DFA US Vector Equity Class F 2.30K 0.03% ▲ 0.00% Jul 31, 2026
6 Dimensional US Sustainability Core 1 ETF 1.47K 0.02% ▲ 0.00% Sep 30, 2026
7 Vanguard U.S. Eq Idx £ Acc 1.35K 0.02% ▲ 0.00% Sep 30, 2026
8 Dimensional US Core Equity 2 ETF 1.06K 0.02% ▲ 0.00% Sep 30, 2026
9 Fidelity Nasdaq Composite Index 1.01K 0.01% ▲ 0.00% Aug 31, 2026
10 Dimensional US Core Equity 1 ETF 547.00 0.01% ▲ 0.00% Sep 24, 2026

Financial Highlights

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Market Cap: $16.88M
EBITDA: $-6.18M
PEG Ratio: $0.00
Book Value: $1.56
Earnings/Share: $-1.00
Profit Margin: -96.07%
Operating Margin: -267.50%
ROA (TTM): -30.06%
ROE (TTM): -51.73%
Revenue (TTM): $5.45M
Revenue/Share (TTM): $0.96
Earnings Growth (YOY): 0.00%
Revenue Growth (YOY): 321.10%

Valuation Metrics

Enterprise Value: $7.93M
Trailing P/E: 0.00
Forward P/E: 72.99

Shares Statistics

Shares Outstanding: 6.81M
Shares Float: 5.35M
% Insiders: 4.68%
% Institutions: 26.04%
Shares Short: 15.23K
Shares Short (Prior Month): 13.27K
Short Ratio: 0.73
Short % Float: 0.26%

Stock Price History

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1 Year Price History

3 Years Price History

10 Years Price History

Max Price History

Financial Charts

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Open balance sheet Open capital intensity Download Financials (Excel)

Revenue, Net Income & Operating Cash Flow (Yearly)

Change % vs Prior Year

Revenue, Net Income & Operating Cash Flow (Quarterly)

Change % vs Prior Quarter

Operating Expenses (Yearly)

Operating Expenses (Quarterly)

Balance Sheet (Yearly)

Balance Sheet (Quarterly)

Assets Breakdown (Yearly)

Assets Breakdown (Quarterly)

Liabilities Breakdown (Yearly)

Liabilities Breakdown (Quarterly)

Income Statement Waterfall

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Open full waterfall Open balance sheet
Line Item
Step Type
Value
Revenue
adjust
$5.23M
Cost of Goods Sold
adjust
$-3.81M
Gross Profit
subtotal
$1.42M
SG&A
adjust
$-6.67M
R&D
adjust
$-1.42M
Operating Income
subtotal
$-5.94M
Other / Non-Operating Items
adjust
$439.00K
Net Income
subtotal
$-5.50M

Earnings Per Share (EPS) History

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Financial Ratios

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📦 Raw API Data (JSON Explorer)

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