Clearsign Technologies Corp
CLIR0.570USD
-0.022-3.68%
Close 12/19, 16:00（ET）Quotes delayed by 15 min
29.95MMarket Cap
LossP/E TTM
More Details of Clearsign Technologies Corp Company
ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems, including operational performance, energy efficiency, emission reduction, safety, and overall cost-effectiveness. The Company’s patented technologies are designed to be embedded in established original equipment manufacturers (OEM) products as ClearSign Core and ClearSign Eye and other sensing configurations in order to enhance the performance of combustion systems and fuel safety systems in a broad range of markets. These markets include energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. The Company’s products include process burners, midstream and power, boiler burners, and flares.
Clearsign Technologies Corp Info
Ticker SymbolCLIR
Company nameClearSign Technologies Corp
IPO dateApr 25, 2012
CEODeller (Colin James)
Number of employees18
Security typeOrdinary Share
Fiscal year-endApr 25
Address8023 E. 63Rd Place
CityTULSA
Stock exchangeNASDAQ OMX - NASDAQ BASIC
CountryUnited States of America
Postal code74133
Phone19182366461
Websitehttps://clearsign.com/
Ticker SymbolCLIR
IPO dateApr 25, 2012
CEODeller (Colin James)
Company Executives of Clearsign Technologies Corp
Name
Name/Position
Position
Shareholding
Change
Mr. Anthony DiGiandomenico
Mr. Anthony DiGiandomenico
Director
Director
544.48K
--
Mr. Brent Hinds, CPA
Mr. Brent Hinds, CPA
Chief Financial Officer
Chief Financial Officer
117.84K
--
Mr. Louis J. Basenese
Mr. Louis J. Basenese
Independent Director
Independent Director
--
--
Dr. Colin James Deller, Ph.D.
Dr. Colin James Deller, Ph.D.
Chief Executive Officer, Secretary, Director
Chief Executive Officer, Secretary, Director
--
--
Mr. G. Todd Silva
Mr. G. Todd Silva
Independent Director
Independent Director
--
--
Mr. Matthew Selinger
Mr. Matthew Selinger
IR Contact Officer
IR Contact Officer
--
--
Name
Name/Position
Position
Shareholding
Change
Mr. Anthony DiGiandomenico
Mr. Anthony DiGiandomenico
Director
Director
544.48K
--
Mr. Brent Hinds, CPA
Mr. Brent Hinds, CPA
Chief Financial Officer
Chief Financial Officer
117.84K
--
Mr. Louis J. Basenese
Mr. Louis J. Basenese
Independent Director
Independent Director
--
--
Dr. Colin James Deller, Ph.D.
Dr. Colin James Deller, Ph.D.
Chief Executive Officer, Secretary, Director
Chief Executive Officer, Secretary, Director
--
--
Mr. G. Todd Silva
Mr. G. Todd Silva
Independent Director
Independent Director
--
--
Mr. Matthew Selinger
Mr. Matthew Selinger
IR Contact Officer
IR Contact Officer
--
--
Revenue Breakdown
Relevant data have not been disclosed by the company yet.
Relevant data have not been disclosed by the company yet.
By Business
By Region
Relevant data have not been disclosed by the company yet.
Shareholding Stats
Updated: Sat, Nov 15
Updated: Sat, Nov 15
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
Otter Capital LLC
15.83%
clirSPV, L.L.C.
3.22%
The Vanguard Group, Inc.
2.40%
Simon Quick Advisors, LLC
1.13%
DiGiandomenico (Anthony)
1.02%
Other
76.40%
Shareholders
Shareholders
Proportion
Otter Capital LLC
15.83%
clirSPV, L.L.C.
3.22%
The Vanguard Group, Inc.
2.40%
Simon Quick Advisors, LLC
1.13%
DiGiandomenico (Anthony)
1.02%
Other
76.40%
Shareholder Types
Shareholders
Proportion
Private Equity
15.83%
Investment Advisor
6.07%
Corporation
3.22%
Individual Investor
2.26%
Investment Advisor/Hedge Fund
1.60%
Hedge Fund
0.17%
Research Firm
0.11%
Other
70.74%
Institutional Shareholding
Updated: Mon, Dec 8
Updated: Mon, Dec 8
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2025Q4
63
12.67M
24.60%
--
2025Q3
65
12.67M
24.96%
-302.74K
2025Q2
64
12.97M
24.17%
+433.10K
2025Q1
63
12.54M
23.21%
+373.15K
2024Q4
58
3.36M
7.05%
+204.81K
2024Q3
56
3.16M
7.09%
-1.41K
2024Q2
59
3.16M
6.55%
+250.07K
2024Q1
62
2.91M
8.10%
-252.02K
2023Q4
62
2.77M
8.39%
-16.98K
2023Q3
67
2.79M
8.23%
+137.19K
View more
Shareholder Activity
Name
Shares Held
Proportion
Change
Chg %
Date
Otter Capital LLC
8.43M
16.09%
--
--
May 29, 2025
clirSPV, L.L.C.
1.71M
3.27%
-7.83M
-82.03%
Feb 14, 2025
The Vanguard Group, Inc.
1.17M
2.22%
+34.69K
+3.07%
Jun 30, 2025
Simon Quick Advisors, LLC
603.15K
1.15%
--
--
Jun 30, 2025
DiGiandomenico (Anthony)
544.48K
1.04%
+544.48K
--
May 29, 2025
Geode Capital Management, L.L.C.
553.67K
1.06%
+4.49K
+0.82%
Jun 30, 2025
Cambridge Investment Research Advisors, Inc.
443.00K
0.84%
-10.00K
-2.21%
Jun 30, 2025
Hoffman (Robert Thurston Sr.)
347.98K
0.66%
--
--
Feb 14, 2025
BlackRock Institutional Trust Company, N.A.
199.30K
0.38%
--
--
Jun 30, 2025
Deller (Colin James Ph.D.)
171.85K
0.33%
--
--
May 29, 2025
View more
Related ETFs
Updated: Sat, Dec 6
Updated: Sat, Dec 6
Name
Proportion
iShares Micro-Cap ETF
0%
iShares Core S&P Total U.S. Stock Market ETF
0%
iShares Micro-Cap ETF
Proportion0%
iShares Core S&P Total U.S. Stock Market ETF
Proportion0%
Dividend
A total of
0.00
USD has been distributed in dividends over the past 5 years.
Date
Dividend
Record Date
Payment Date
Ex-dividend Date
No Data
Stock Split
Date
Type
Ratio
No Data
Date
Type
Ratio
No Data
FAQs
Who are the top five shareholders of Clearsign Technologies Corp?
The top five shareholders of Clearsign Technologies Corp are:
Otter Capital LLC holds 8.43M shares, accounting for 16.09% of the total shares.
clirSPV, L.L.C. holds 1.71M shares, accounting for 3.27% of the total shares.
The Vanguard Group, Inc. holds 1.17M shares, accounting for 2.22% of the total shares.
Simon Quick Advisors, LLC holds 603.15K shares, accounting for 1.15% of the total shares.
DiGiandomenico (Anthony) holds 544.48K shares, accounting for 1.04% of the total shares.
Otter Capital LLC holds 8.43M shares, accounting for 16.09% of the total shares.
clirSPV, L.L.C. holds 1.71M shares, accounting for 3.27% of the total shares.
The Vanguard Group, Inc. holds 1.17M shares, accounting for 2.22% of the total shares.
Simon Quick Advisors, LLC holds 603.15K shares, accounting for 1.15% of the total shares.
DiGiandomenico (Anthony) holds 544.48K shares, accounting for 1.04% of the total shares.
What are the top three shareholder types of Clearsign Technologies Corp?
The top three shareholder types of Clearsign Technologies Corp are:
Otter Capital LLC
clirSPV, L.L.C.
The Vanguard Group, Inc.
Otter Capital LLC
clirSPV, L.L.C.
The Vanguard Group, Inc.
How many institutions hold shares of Clearsign Technologies Corp (CLIR)?
As of 2025Q4, 63 institutions hold shares of Clearsign Technologies Corp, with a combined market value of approximately 12.67M, accounting for 24.60% of the total shares. Compared to 2025Q3, institutional shareholding has increased by -0.37%.
What is the biggest source of revenue for Clearsign Technologies Corp?
In --, the -- business generated the highest revenue for Clearsign Technologies Corp, amounting to -- and accounting for --% of total revenue.
