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 23, 2026 Buy	Common Stock P-Purchase	Silva Gil Todd Director	Director	1 000 Value: $5K
Apr 23, 2026 Buy	Common Stock P-Purchase	Silva Gil Todd Director	Director	1 000 Value: $5K
Mar 31, 2026 Buy	Non-Statutory Stock Options A-Award	Silva Gil Todd Director	Director	3 024 Value: $13.2K
Mar 31, 2026 Buy	Restricted Stock Units A-Award	Silva Gil Todd Director	Director	3 440 Value: $15.0K
Mar 31, 2026 Buy	Non-Statutory Stock Options A-Award	Basenese Lou Director	Director	3 024 Value: $13.2K
Mar 31, 2026 Buy	Non-Statutory Stock Options A-Award	Digiandomenico Anthony Director	Director	3 024 Value: $13.2K
Mar 17, 2026 Buy	Common Stock P-Purchase	Silva Gil Todd Director	Director	2 000 Value: $8K
Mar 16, 2026 Buy	Common Stock P-Purchase	Silva Gil Todd Director	Director	2 000 Value: $9K
Feb 26, 2026 Sell	Common Stock F-InKind	Deller Colin James Chief Executive Officer	CEO / President	3 501 Value: $19.7K
Feb 26, 2026 Buy	Common Stock A-Award	Deller Colin James Chief Executive Officer	CEO / President	7 001 Value: $39.3K
Feb 26, 2026 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	20 761 Value: $11.7K
Feb 26, 2026 Buy	Common Stock A-Award	Hinds Brent Chief Financial Officer	C-Suite Officer	56 645 Value: $318.1K
Feb 26, 2026 Sell	Common Stock F-InKind	Deller Colin James Chief Executive Officer	CEO / President	105 022 Value: $59.0K
Feb 26, 2026 Buy	Common Stock A-Award	Deller Colin James Chief Executive Officer	CEO / President	210 043 Value: $1.18M
Feb 26, 2026 Buy	Restricted Stock Unit A-Award	Hinds Brent Chief Financial Officer	C-Suite Officer	47 009 Value: $264.0K
Feb 22, 2026 Buy	Common Stock M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	7 547 Value: $33.1K
Feb 22, 2026 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	2 765 Value: $2K
Feb 22, 2026 Buy	Restricted Stock Unit M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	7 547 Value: $33.1K
Feb 20, 2026 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	3 413 Value: $2K
Feb 20, 2026 Buy	Common Stock M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	9 315 Value: $55.4K
Feb 20, 2026 Buy	Restricted Stock Unit M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	9 315 Value: $55.4K
Feb 02, 2026 Buy	Restricted Stock Unit M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	10 127 Value: $60.7K
Feb 02, 2026 Buy	Common Stock M-Exempt	Hinds Brent Chief Financial Officer	C-Suite Officer	10 127 Value: $60.7K
Feb 02, 2026 Sell	Common Stock F-InKind	Hinds Brent Chief Financial Officer	C-Suite Officer	3 711 Value: $2K
Oct 01, 2025 Buy	Restricted Stock Units A-Award	Basenese Lou Director	Director	24 621 Value: $195.0K

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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