Revenue
2018
2019
2020
2021
2022
2023
2024
2025
ClearSign Technologies Corp (CLIR)
Price—Loading quote
Net income
2018
2019
2020
2021
2022
2023
2024
2025
Free cash flow
2017
2018
2019
2020
2021
2022
2024
2025
Total cash / debt
CashTotal debt
2018
2019
2020
2021
2022
2023
2024
2025
Financial statements
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | $5.2M | $3.6M | $2.4M | $374,000 | $607,000 | $0 | $0 | $530,000 | $540,000 | $621,000 | $61,000 | $0 | — | — | — |
| Gross profit | $1.4M | $1.1M | $817,000 | $116,000 | −$452,000 | −$279,000 | −$1,000 | $103,000 | $160,000 | $136,000 | $11,000 | $0 | $5,000 | $0 | — |
| Research & development | $1.4M | $1.5M | $739,000 | $505,000 | $2.7M | $2.0M | $3.1M | $4.1M | $4.7M | $4.8M | $2.9M | $2.2M | $1.9M | $1.2M | $463,000 |
| Operating expenses | $8.1M | $7.6M | $6.8M | $6.2M | $7.7M | $6.7M | $8.6M | $9.7M | $9.9M | $11.3M | $8.0M | $7.3M | $5.3M | $4.2M | $3.0M |
| Operating income | −$6.7M | −$6.5M | −$6.0M | −$6.1M | −$8.1M | −$6.9M | −$8.6M | −$9.6M | −$9.7M | −$11.2M | −$7.9M | −$7.3M | −$5.3M | −$4.2M | −$3.0M |
| EBITDAderived | −$6.5M | −$6.3M | −$5.7M | −$6.0M | −$7.9M | −$6.7M | −$8.3M | −$9.3M | −$9.4M | −$11.0M | −$7.7M | −$7.1M | −$5.1M | −$4.1M | −$3.0M |
| Net income | −$5.5M | −$5.3M | −$5.2M | −$5.8M | −$7.9M | −$6.9M | −$8.5M | −$9.5M | −$9.7M | −$11.2M | −$7.9M | −$7.3M | −$5.3M | −$4.2M | −$3.0M |
| Basic EPSper diluted share | -$0.99 | -$1.08 | -$0.13 | -$0.16 | -$0.25 | -$0.25 | $0.32 | $0.42 | $0.63 | -$0.86 | -$0.63 | -$0.77 | -$0.60 | -$0.55 | -$0.67 |
| Diluted EPSper diluted share | -$0.99 | -$1.08 | -$0.13 | -$0.16 | -$0.25 | -$0.25 | $0.32 | $0.42 | $0.63 | -$0.86 | -$0.63 | -$0.77 | -$0.60 | -$0.55 | -$0.67 |
Insider buys & sells
| Transaction | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| Apr 23, 2026Form 4 | Silva Gil ToddDirector | BuyCommon Stock | 1.0K | $5.25 | $5.3K | 6.0K |
| Apr 23, 2026Form 4 | Silva Gil ToddDirector | BuyCommon Stock | 1.0K | $5.32 | $5.3K | 5.0K |
| Mar 17, 2026Form 4 | Silva Gil ToddDirector | BuyCommon Stock | 2.0K | $4.20 | $8.4K | 4.0K |
| Mar 16, 2026Form 4 | Silva Gil ToddDirector | BuyCommon Stock | 2.0K | $4.36 | $8.7K | 2.0K |