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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

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Net Insider Buy/Sell (L12M) Ownership

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CLIR Shareholders

What type of owners hold Clearsign Technologies Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Robert Thurston Hoffman Sr.299.30%16,188,216$70.66MInsider
John M. Pasquesi155.95%8,434,774$36.82MInsider
Gpclirspv LLC96.39%5,213,543$22.76MInsider
Clirspv LLC96.39%5,213,543$22.76MInsider
James M. Simmons30.81%1,666,627$7.27MInsider
David B. Goodson30.38%1,643,324$7.17MInsider
Vanguard Group Inc24.46%1,322,980$5.77MInstitution
Dbg Living Trust Bd11.15%603,324$2.63MInsider
Simon Quick Advisors LLC11.15%603,149$2.63MInstitution
Anthony Digiandomenico10.07%544,478$2.38MInsider

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CLIR vs Pollution & Treatment Control Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
CLIR9.50%90.50%Net SellingNet Selling
LIQT6.47%93.53%Net Selling
TOMZ4.57%14.94%Net BuyingNet Buying
RAIN7.55%47.95%Net Selling
SCWO3.04%96.96%Net SellingNet Selling
View Top Pollution & Treatment Control Stocks

Clearsign Technologies Stock Ownership FAQ

Who owns Clearsign Technologies?

Clearsign Technologies (NASDAQ: CLIR) is owned by 82.40% institutional shareholders, 784.57% Clearsign Technologies insiders, and 0.00% retail investors. Robert Thurston Hoffman Sr. is the largest individual Clearsign Technologies shareholder, owning 16.19M shares representing 299.30% of the company. Robert Thurston Hoffman Sr.'s Clearsign Technologies shares are currently valued at $73.66M.

If you're new to stock investing, here's how to buy Clearsign Technologies stock.
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