Institutional shares held 4.18 Million
6K calls
0 puts
Total value of holdings $2.47M
$3K calls
$0 puts
Market Cap $22.4M
37,951,600 Shares Out.
Institutional ownership 11.01%
# of Institutions 42


Latest Institutional Activity in CLIR

Top Purchases

Q2 2025
Gleason Group, Inc. Shares Held: 18K ($10.6K)
Q1 2025
Simon Quick Advisors, LLC Shares Held: 603K ($356K)
Q1 2025
Susquehanna International Group, LLP Shares Held: 70.9K ($41.8K)
Q1 2025
Integrity Alliance, Llc. Shares Held: 39.5K ($23.3K)
Q1 2025
Chicago Partners Investment Group LLC Shares Held: 28K ($16.5K)

Top Sells

Q1 2025
Creative Planning Shares Held: 142K ($83.7K)
Q1 2025
Goldman Sachs Group Inc Shares Held: 20.5K ($12.1K)
Q1 2025
Ubs Group Ag Shares Held: 18.9K ($11.1K)
Q1 2025
Simplex Trading, LLC Shares Held: 393 ($232)
Q1 2025
Jpmorgan Chase & CO Shares Held: 86 ($50.7)

About CLIR

ClearSign Technologies Corporation designs and develops products and technologies to enhance operational performance, energy efficiency, emission reduction, safety, and overall cost-effectiveness of industrial and commercial systems in the United States and the People's Republic of China. Its ClearSign Core Burner Technology consists of an industrial burner body and a downstream porous ceramic structure or metal flame stabilizing device; ClearSign Core Plug & Play technology provides direct burner replacement for traditional refinery process heaters; and ClearSign Eye Flame Sensor, an electrical flame sensor for industrial applications. The company also provides ClearSign Core Boiler Burner; and ClearSign Core Flaring Burners technologies. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. The company was formerly known as ClearSign Combustion Corporation and changed its name ClearSign Technologies Corporation in November 2019. ClearSign Technologies Corporation was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.


Insider Transactions at CLIR

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
169K Shares
From 3 Insiders
Grant, award, or other acquisition 152K shares
Exercise of conversion of derivative security 17.7K shares
Sell / Disposition
75K Shares
From 2 Insiders
Payment of exercise price or tax liability 75K shares

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