NASDAQ:CLIR

Clearsign Combustion Stock Insider Trading

Industrials > Industrial - Pollution & Treatment Controls

Buy CLIR

*Your capital is at risk

$4.38

-0.0781 (-1.75%)

At Close: Jun 03, 2026

ClearSign Combustion Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 97.98. In total, the insiders bought 16.09M and sold 291K CLIR shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	97.98
● Buy	16.09M shares
● Sell	291K shares
84% Buy Activity Moderate Positive Correlation
Sell Signal Low Confidence Jun 01, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 97.98. Partially supported by a positive historical correlation. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Apr 01, 2025 Buy	Restricted Stock Units A-Award	Schrecker Judith S Director	Director	33 735 Value: $256.4K
Apr 01, 2025 Buy	Restricted Stock Units A-Award	De Lacy Catharine Director	Director	24 857 Value: $188.9K
Feb 24, 2025 Buy	Common Stock M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	7 547 Value: $60.3K
Feb 24, 2025 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	2 636 Value: $2K
Feb 24, 2025 Buy	Restricted Stock Unit M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	7 547 Value: $60.3K
Feb 24, 2025 Buy	Restricted Stock Unit M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	7 547 Value: $60.3K
Feb 24, 2025 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	2 636 Value: $2K
Feb 24, 2025 Buy	Common Stock M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	7 547 Value: $60.3K
Feb 20, 2025 Buy	Common Stock A-Award	Hinds Brent Chief Financial Officer	C-Suite Officer	51 176 Value: $439.5K
Feb 20, 2025 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	18 757 Value: $16.1K
Feb 20, 2025 Buy	Restricted Stock Unit A-Award	Hinds Brent Chief Financial Officer	C-Suite Officer	27 946 Value: $240.0K
Feb 20, 2025 Buy	Common Stock A-Award	Deller Colin James Chief Executive Officer	CEO / President	100 393 Value: $862.2K
Feb 20, 2025 Sell	Common Stock F-InKind	Deller Colin James Chief Executive Officer	CEO / President	49 846 Value: $42.8K
Feb 20, 2025 Sell	Common Stock F-InKind	Deller Colin James Chief Executive Officer	CEO / President	49 846 Value: $42.8K
Feb 20, 2025 Buy	Common Stock A-Award	Deller Colin James Chief Executive Officer	CEO / President	100 393 Value: $862.2K
Feb 20, 2025 Buy	Restricted Stock Unit A-Award	Hinds Brent Chief Financial Officer	C-Suite Officer	27 946 Value: $240.0K
Feb 20, 2025 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	18 757 Value: $16.1K
Feb 20, 2025 Buy	Common Stock A-Award	Hinds Brent Chief Financial Officer	C-Suite Officer	51 176 Value: $439.5K
Feb 14, 2025 Buy	Common Stock	Pasquesi John M 10 Percent Owner	10% Owner	0 Value: $0
Feb 14, 2025 Buy	Warrant to Purchase Common Stock	Pasquesi John M 10 Percent Owner	10% Owner	6 633 315 Value: $6.96M
Feb 14, 2025 Buy	Warrant to Purchase Common Stock	Pasquesi John M 10 Percent Owner	10% Owner	6 633 315 Value: $6.96M
Feb 14, 2025 Buy	Common Stock	Pasquesi John M 10 Percent Owner	10% Owner	0 Value: $0
Feb 02, 2025 Buy	Common Stock M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	10 127 Value: $44.4K
Feb 02, 2025 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	3 712 Value: $4K
Feb 02, 2025 Buy	Restricted Stock Unit M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	10 127 Value: $44.4K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT CLEARSIGN COMBUSTION CORPORATION

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; ClearSig...

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