WallStreetZenWallStreetZen

NASDAQ: CLIR
Clearsign Technologies Corp Stock Ownership - Who owns Clearsign Technologies?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Clearsign Technologies Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Gil Todd SilvaDirector2026-04-231,000$5.32
$5.32kBuy
Gil Todd SilvaDirector2026-04-231,000$5.25
$5.25kBuy
Gil Todd SilvaDirector2026-03-172,000$4.20
$8.40kBuy
Gil Todd SilvaDirector2026-03-162,000$4.36
$8.71kBuy
Colin James DellerChief Executive Officer2026-02-26105,022$0.56
$59.02kSell
Colin James DellerChief Executive Officer2026-02-267,001$5.62
$39.32kBuy
Colin James DellerChief Executive Officer2026-02-263,501$5.62
$19.66kSell
Brent HindsChief Financial Officer2026-02-2620,761$0.56
$11.67kSell
Brent HindsChief Financial Officer2026-02-222,765$0.60
$1.65kSell
Brent HindsChief Financial Officer2026-02-203,413$0.60
$2.03kSell

1 of 2

CLIR insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when CLIR insiders and whales buy or sell their stock.

CLIR Shareholders

What type of owners hold Clearsign Technologies Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Robert Thurston Hoffman Sr.299.08%16,188,216$58.60MInsider
John M. Pasquesi155.83%8,434,774$30.53MInsider
Gpclirspv LLC96.32%5,213,543$18.87MInsider
Clirspv LLC96.32%5,213,543$18.87MInsider
James M. Simmons30.79%1,666,627$6.03MInsider
David B. Goodson30.36%1,643,324$5.95MInsider
Dbg Living Trust Bd11.15%603,324$2.18MInsider
Anthony Digiandomenico10.06%544,478$1.97MInsider
Christopher A. Marlett8.73%472,697$1.71MInsider
Geoffrey D. Osler7.86%425,249$1.54MInsider

1 of 3

CLIR vs Pollution & Treatment Control Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
CLIR0.93%99.07%Net SellingNet Buying
TOMZ4.48%14.94%Net BuyingNet Buying
RAIN11.85%73.26%Net Selling
CLWT2.37%58.20%
LIQT6.11%93.89%Net BuyingNet Buying
View Top Pollution & Treatment Control Stocks

Clearsign Technologies Stock Ownership FAQ

Who owns Clearsign Technologies?

Clearsign Technologies (NASDAQ: CLIR) is owned by 7.36% institutional shareholders, 784.01% Clearsign Technologies insiders, and 0.00% retail investors. Robert Thurston Hoffman Sr. is the largest individual Clearsign Technologies shareholder, owning 16.19M shares representing 299.08% of the company. Robert Thurston Hoffman Sr.'s Clearsign Technologies shares are currently valued at $58.60M.

If you're new to stock investing, here's how to buy Clearsign Technologies stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.