CLIR

ClearSign Technologies Corporation$5.45+0.22 (+4.21%)

Prev Close$5.23·MCap$28.3M·P/E—·Vol7.6K·Yield—

▲

Buys (12M)

$22.4K

▼

Sells (12M)

$2.2K

◆

Net Activity

Net Buyer

$20.1K

●

Active Insiders

last 12 mo

Over the past 12 months, insider activity at ClearSign Technologies Corporation (CLIR) has been dominated by buying, with 2 insider purchases totaling $22.4K and 1 insider sale totaling $2.2K. The most recent insider transaction was by Silva Gil Todd (director), who purchased $5.3K worth of shares on Apr 27, 2026. ClearSign Technologies Corporation operates in the Industrials sector, within the Industrial - Pollution & Treatment Controls industry, with a market cap of $28.3M.

CLIR Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Apr 27, 2026	Silva Gil Todd	director	Buy	1,000	$5.25	$5.3K	6,000
Mar 19, 2026	Silva Gil Todd	director	Buy	4,000	$4.28	$17.1K	4,000
Feb 2, 2026	Hinds Brent	Chief Financial Officer	Sell	3,711	$0.60	$2.2K	0
Feb 24, 2025	Hinds Brent	Chief Financial Officer	Sell	2,636	$0.80	$2.1K	0
Feb 20, 2025	Deller Colin James	Chief Executive Officer	Sell	49,846	$0.86	$42.8K0.9% OS	0
Feb 20, 2025	Hinds Brent	Chief Financial Officer	Sell	18,757	$0.86	$16.1K	0
Jun 26, 2024	HOFFMAN Robert Thurston Sr	10% Owner	Buy	11,732,500	$0.37	$4.34M220.3% OS	9,539,857
Jul 13, 2022	HOFFMAN Robert Thurston Sr	Director	Buy	1,591,594	$1.11	$1.77M29.9% OS	7,583,234+27%
Jun 16, 2022	Pate Bruce Alan	Director	Buy	45,000	$1.12	$50.4K0.8% OS	150,000+43%

CLIR Insider Buying Activity

The following table shows recent insider purchases of ClearSign Technologies Corporation (CLIR) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Apr 27, 2026	Silva Gil Todd	director	Buy	1,000	$5.25	$5.3K	6,000
Mar 19, 2026	Silva Gil Todd	director	Buy	4,000	$4.28	$17.1K	4,000
Jun 26, 2024	HOFFMAN Robert Thurston Sr	10% Owner	Buy	11,732,500	$0.37	$4.34M220.3% OS	9,539,857
Jul 13, 2022	HOFFMAN Robert Thurston Sr	Director	Buy	1,591,594	$1.11	$1.77M29.9% OS	7,583,234+27%
Jun 16, 2022	Pate Bruce Alan	Director	Buy	45,000	$1.12	$50.4K0.8% OS	150,000+43%

CLIR Insider Selling Activity

The following table shows recent insider sales of ClearSign Technologies Corporation (CLIR) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value
Feb 2, 2026	Hinds Brent	Chief Financial Officer	Sell	3,711	$0.60	$2.2K
Feb 24, 2025	Hinds Brent	Chief Financial Officer	Sell	2,636	$0.80	$2.1K
Feb 20, 2025	Deller Colin James	Chief Executive Officer	Sell	49,846	$0.86	$42.8K0.9% OS
Feb 20, 2025	Hinds Brent	Chief Financial Officer	Sell	18,757	$0.86	$16.1K