CLIR

NASDAQ

ClearSign Combustion Corporation

$5.29
-0.89 (-14.40%)
Institutional
23.9%
Insider
5.76%
Retail/Other
70.4%
Shares Outstanding
5.4M

Top Institutional Holders

As of Apr 2026
Holder Shares % Change
Vanguard Group Inc 1.3M 2.4% +0.0M
Vanguard Group Inc 1.2M 2.2% +0.0M
Massey, Quick & Co. LLC 603K 1.2% -
Massey, Quick & Co. LLC 603K 1.1% -
Geode Capital Management, LLC 554K 1.1% +0.0M
Geode Capital Management, LLC 523K 1.0% -0.0M
Geode Capital Management, LLC 523K 1.0% -0.0M
CAMBRIDGE Invest RESEARCH ADVISORS, INC. 443K 0.8% -
CAMBRIDGE Invest RESEARCH ADVISORS, INC. 443K 0.8% -0.0M
CAMBRIDGE Invest RESEARCH ADVISORS, INC. 443K 0.8% -

Insider Transactions

Last 24 months (3 insiders)
Colin James Deller Chief Executive Officer
276,874 shares
382K172K277KFeb 2026Feb 2026
Awards (1)
Shares Price Value Date Remaining
210,043 - $117,960* 2026-02-26 381,896
Brent Hinds Chief Financial Officer
170,824 shares
192K135K163KFeb 2026Feb 2026
Awards (1)
Shares Price Value Date Remaining
56,645 - $31,812* 2026-02-26 191,585
Gil Todd Silva Director
4,000 shares
4.0K02.0KMar 2026Mar 2026
Buys (2)
Shares Price Value Date Remaining
2,000 $4.20 $8,400 2026-03-17 4,000
2,000 $4.36 $8,710 2026-03-16 2,000

Insider Activity Summary

Last 24 months
Total Bought
4,000 shares
$17,110
Total Sold
0 shares
$0
Net Shares
+4,000
Net Value
$+17,110
Activity by Insider
Name Bought Sold Net Shares Net Value
Gil Todd Silva
Director
 +4,000 - +4,000 $+17,110
Net insider buying: 4,000 shares ($17,110) in last 12 months

Congressional Trading

STOCK Act Disclosures

No congressional trading data available for this ticker.

Congressional trading data is sourced from STOCK Act disclosures and may not be available for all tickers.

Based on public disclosures. Reporting errors by representatives are common. Disclosure deadlines are 45 days after transaction.