Stocks Industrials CLIR
NASDAQ · IndustrialsClearSign Technologies Corp (CLIR)
ClearSign Technologies Corp brought in $5.5M of revenue over the twelve months to June 30, 2026, up 82.7% from a year earlier. It posted a net loss of $5.2M. In fiscal 2025 capital spending exceeded operating cash flow by $4.7M. At June 30, 2026 it held $9.9M in cash. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on August 14, 2026.
Watch CLIR in 60 secondsWhat ClearSign Technologies Corp does
ClearSign Technologies Corp is registered with the SEC under industry code SIC 3823 (Industrial Instruments For Measurement, Display, and Control). Its shares trade on NASDAQ under the ticker CLIR.
Revenue and profit by year
Key figures
| Fiscal year | Revenue | Net income | Diluted EPS | Free cash flow |
|---|---|---|---|---|
| 2025 | $5.2M | -$5.5M | -$0.99 | -$4.7M |
| 2024 | $3.6M | -$5.3M | -$1.08 | -$4.4M |
| 2023 | $2.4M | -$5.2M | -$1.30 | n/a |
| 2022 | $374K | -$5.8M | -$1.60 | -$5M |
| 2021 | $607K | -$7.9M | -$2.50 | -$6.8M |
| 2020 | $0 | -$6.9M | -$2.50 | -$6M |
Full financial statements: income, balance sheet and cash flow
Where CLIR ranks in Industrials
Latest SEC filings
What ClearSign Technologies Corp has filed recently, newest first. Each links to the original document on SEC EDGAR.
- September 14, 2026
- August 20, 2026
- August 14, 2026Quarterly report 10-Q · period to June 30, 2026Revenue rose 321% to $560K versus the same quarter last year; diluted EPS -$0.22 versus -$0.30.
- August 11, 2026
- July 24, 2026Passive stake changed SCHEDULE 13G/A
- July 23, 2026
- July 6, 2026
- July 6, 2026Other event 8-K
- July 6, 2026
- June 18, 2026Other event 8-K
Insider trades
What the people running ClearSign Technologies Corp did with its shares, from the Form 4 filings they must send the SEC within two business days.
Insiders bought $1.8M worth of shares on the open market in the last 90 days and sold none.
| Date | Insider | What | Shares | Value |
|---|---|---|---|---|
| July 22, 2026 | Pasquesi John M10% owner | Boughtindirect | 500,000 | $1.8M |
| April 23, 2026 | Silva Gil ToddDirector | Bought | 1,000 | $5.3K |
| April 23, 2026 | Silva Gil ToddDirector | Bought | 1,000 | $5.3K |
| February 26, 2026 | Deller Colin JamesChief Executive Officer, Director | Received as pay | 7,001 | $39.3K |
| February 26, 2026 | Deller Colin JamesChief Executive Officer, Director | Shares withheld for tax | 3,501 | $19.7K |
Who owns CLIR
Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.
5% holders
| Holder | Of class | Filed |
|---|---|---|
| Robert T. Hoffman Sr.13D, may seek influence with 3 related filers | 19.99% | June 26, 2024 |
| John M Pasquesi13G, passive with 1 related filers | 19.9% | July 24, 2026 |
Largest institutional holders
Insiders
3 insiders reported holding 1,380,943 shares in total, about $4.8M at the last price.
| Holder | Shares |
|---|---|
| Pasquesi John M10% owner | 1,343,4771,343,477 held indirectly |
| Deller Colin JamesChief Executive Officer, Director | 31,466 |
| Silva Gil ToddDirector | 6,000 |
Questions about CLIR
What does ClearSign Technologies Corp do?
ClearSign Technologies Corp is registered with the SEC under industry code SIC 3823 (Industrial Instruments For Measurement, Display, and Control). Its shares trade on NASDAQ under the ticker CLIR.
Is ClearSign Technologies Corp profitable?
No. Over the twelve months to June 30, 2026 it reported a net loss of $5.2M on revenue of $5.5M.
How much revenue does ClearSign Technologies Corp make?
Over the twelve months to June 30, 2026 ClearSign Technologies Corp reported revenue of $5.5M. That is 82.7% more than a year earlier.
When did ClearSign Technologies Corp last report?
Its most recent periodic report is the quarterly report (10-Q) filed on August 14, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the investor disclosure from September 14, 2026.
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Follow CLIR: get an email when it filesWhere the numbers come from
Financial figures are the values ClearSign Technologies Corp tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.
Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.