CLEARSIGN TECHNOLOGIES CORPORATION financials
Source: EDGAR filings · Built 2026-06-19T02:09:29Z
Key metrics by reporting period
Up to six most-recent periods side-by-side. Rows are the curated key lines — revenue, margins, cash, debt, equity, cash-flow totals, plus the derived and valuation metrics we compute on top. For every tag a filer reported in one period, use the single-filing drilldown below.
Derived Metrics
| Concept | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 |
|---|---|---|---|---|---|---|
| Free Cash Flow | -4.74M | -4.41M | — | -5.00M | -6.78M | -5.98M |
| EBITDA | -6.48M | -6.30M | -5.68M | -5.96M | -7.88M | -6.72M |
| Working Capital | 8.64M | 12.81M | 4.25M | 8.59M | 7.29M | 8.30M |
| Net Debt | -9.02M | -13.85M | -5.44M | -6.09M | -7.05M | -8.15M |
| Gross Margin | 27.21% | 31.09% | 34.00% | 31.02% | -74.46% | — |
| Operating Margin | -127.46% | -180.42% | -248.90% | -1635.56% | -1341.85% | — |
| Net Margin | -105.01% | -147.36% | -216.15% | -1539.57% | -1300.00% | — |
| Return on Equity (ROE) | -57.67% | -38.50% | -100.04% | -60.28% | -95.28% | -72.16% |
| Return on Assets (ROA) | -45.12% | -32.54% | -68.16% | -52.70% | -84.28% | -61.90% |
| Current Ratio | 4.34× | 6.32× | 2.89× | 8.49× | 10.98× | 8.69× |
| Debt-to-Equity | 0.02× | 0.01× | 0.05× | 0.04× | 0.07× | 0.07× |
| Effective Tax Rate | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | — |
| Cash Conversion Ratio | 0.86× | 0.83× | 0.62× | 0.87× | 0.85× | 0.87× |
| Accruals Ratio | -0.06× | -0.06× | -0.26× | -0.07× | -0.13× | -0.08× |
| SBC % of Revenue | 17.06% | 14.68% | 25.55% | 99.73% | 112.03% | — |
| CapEx Coverage | -1184.00× | -112.13× | — | -499.20× | -91.88× | -350.82× |
| Free Cash Flow Per Share | $-0.85 | $-0.90 | — | $-0.14 | $-0.22 | $-2.17 |
Income Statement
| Concept | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 |
|---|---|---|---|---|---|---|
| Cost of Goods and Services Sold | 3.81M | 2.48M | 1.59M | 258.00K | 1.06M | 279.00K |
| Cost of Revenue | 3.81M | 2.48M | 1.59M | 258.00K | 1.06M | — |
| Gross Profit | 1.42M | 1.12M | 817.00K | 116.00K | -452.00K | -279.00K |
| Research and Development Expense | 1.42M | 1.47M | 739.00K | 505.00K | 2.68M | 2.03M |
| Operating Expenses | 8.10M | 7.61M | 6.80M | 6.23M | 7.69M | 6.65M |
| Operating Income (Loss) | -6.67M | -6.49M | -5.98M | -6.12M | -8.14M | -6.93M |
| Income Tax Expense (Benefit) | 0 | 0 | 0 | 0 | 0 | — |
| Net Income (Loss) Attributable to Parent | -5.50M | -5.30M | -5.19M | -5.76M | -7.89M | -6.88M |
| Earnings Per Share, Basic | $-0.99 | $-1.08 | $-0.13 | $-0.16 | $-0.25 | — |
| Weighted Average Number of Shares Outstanding, Basic | 5.55M | 4.89M | 38.50M | 35.34M | 31.23M | — |
| Earnings Per Share, Diluted | $-0.99 | $-1.08 | $-0.13 | $-0.16 | $-0.25 | — |
| Weighted Average Number of Shares Outstanding, Diluted | 5.55M | 4.89M | 38.50M | 35.34M | 31.23M | 2.76M |
Balance Sheet
| Concept | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 |
|---|---|---|---|---|---|---|
| Cash and Cash Equivalents, at Carrying Value | 9.18M | 14.04M | 5.68M | 6.45M | 7.61M | 8.82M |
| Assets, Current | 11.23M | 15.22M | 6.51M | 9.73M | 8.02M | 9.38M |
| Assets | 12.18M | 16.28M | 7.62M | 10.93M | 9.36M | 11.12M |
| Liabilities, Current | 2.58M | 2.41M | 2.26M | 1.15M | 731.00K | 1.08M |
| Long-term Debt, Excluding Current Maturities | — | — | — | — | — | 251.00K |
| Liabilities | 2.65M | 2.52M | 2.43M | 1.37M | 1.08M | 1.58M |
| Stockholders' Equity Attributable to Parent | — | — | — | — | 8.28M | 9.54M |
| Common Stock, Shares, Outstanding | 5.33M | 5.03M | 38.69M | 38.02M | 31.58M | 30.08M |
Cash Flow Statement
| Concept | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 |
|---|---|---|---|---|---|---|
| Net Cash Provided by (Used in) Operating Activities | -4.74M | -4.37M | -3.23M | -4.99M | -6.71M | -5.96M |
| Payments to Acquire Property, Plant, and Equipment | 4.00K | 39.00K | — | 10.00K | 73.00K | 17.00K |
| Net Cash Provided by (Used in) Investing Activities | -101.00K | -218.00K | 2.49M | -2.69M | -213.00K | -194.00K |
| Net Cash Provided by (Used in) Financing Activities | -21.00K | 12.95M | -15.00K | 6.54M | 5.69M | 6.43M |
Derived Metrics
| Concept | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 |
|---|---|---|---|---|---|---|
| Free Cash Flow | — | -1.28M | -3.46M | -1.63M | -1.11M | -436.00K |
| EBITDA | -2.24M | -782.00K | -1.70M | -1.79M | -2.21M | -1.62M |
| Working Capital | 6.61M | 8.64M | 8.17M | 9.48M | 11.10M | 12.81M |
| Net Debt | -7.60M | -9.02M | -10.30M | -12.13M | -12.70M | -13.85M |
| Gross Margin | -205.76% | 21.93% | 35.76% | 41.35% | 48.88% | 14.92% |
| Operating Margin | -1193.19% | -22.50% | -170.07% | -1381.95% | -562.84% | -282.37% |
| Net Margin | -1146.60% | -8.47% | -138.87% | -1263.16% | -517.71% | -197.29% |
| Return on Equity (ROE) | -28.73% | -3.26% | -15.74% | -16.13% | -17.24% | -8.46% |
| Return on Assets (ROA) | -22.27% | -2.55% | -11.21% | -11.81% | -14.28% | -7.15% |
| Current Ratio | 4.05× | 4.34× | 3.28× | 3.56× | 5.63× | 6.32× |
| Debt-to-Equity | 0.02× | 0.02× | 0.02× | 0.02× | 0.01× | 0.01× |
| Cash Conversion Ratio | 0.62× | 4.13× | 2.42× | 0.97× | 0.54× | 0.36× |
| Accruals Ratio | -0.09× | 0.08× | 0.16× | -0.00× | -0.07× | -0.05× |
| SBC % of Revenue | 39.79% | 0.82% | 83.87% | 72.18% | 11.22% | 13.90% |
| CapEx Coverage | — | — | -863.25× | -405.50× | -277.75× | -19.76× |
| Free Cash Flow Per Share | — | $-0.23 | $-0.63 | $-0.03 | $-0.20 | $-0.09 |
Income Statement
| Concept | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 |
|---|---|---|---|---|---|---|
| Cost of Goods and Services Sold | 584.00K | 2.87M | 661.00K | 78.00K | 205.00K | 502.00K |
| Cost of Revenue | 584.00K | 2.87M | 661.00K | 78.00K | 205.00K | 502.00K |
| Gross Profit | -393.00K | 805.00K | 368.00K | 55.00K | 196.00K | 88.00K |
| Research and Development Expense | 249.00K | 418.00K | 310.00K | 247.00K | 447.00K | 459.00K |
| Operating Expenses | 1.89M | 1.63M | 2.12M | 1.89M | 2.45M | 1.75M |
| Operating Income (Loss) | -2.28M | -826.00K | -1.75M | -1.84M | -2.26M | -1.67M |
| Net Income (Loss) Attributable to Parent | -2.19M | -311.00K | -1.43M | -1.68M | -2.08M | -1.16M |
| Earnings Per Share, Basic | $-0.39 | $-0.06 | $-0.26 | $-0.30 | $-0.38 | $-0.25 |
| Weighted Average Number of Shares Outstanding, Basic | 5.63M | 5.55M | 55.74M | 55.22M | 5.50M | 4.89M |
| Earnings Per Share, Diluted | $-0.39 | $-0.06 | $-0.26 | $-0.30 | $-0.38 | $-0.25 |
| Weighted Average Number of Shares Outstanding, Diluted | 5.63M | 5.55M | — | 55.22M | 5.50M | 4.89M |
Balance Sheet
| Concept | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 |
|---|---|---|---|---|---|---|
| Cash and Cash Equivalents, at Carrying Value | 7.74M | 9.18M | 10.49M | 12.34M | 12.87M | 14.04M |
| Assets, Current | 8.78M | 11.23M | 11.75M | 13.18M | 13.49M | 15.22M |
| Assets | 9.84M | 12.18M | 12.75M | 14.23M | 14.53M | 16.28M |
| Liabilities, Current | 2.17M | 2.58M | 3.58M | 3.70M | 2.40M | 2.41M |
| Liabilities | 2.21M | 2.65M | 3.67M | 3.82M | 2.49M | 2.52M |
| Common Stock, Shares, Outstanding | 5.41M | 5.33M | 52.52M | 52.43M | 52.42M | 5.03M |
Cash Flow Statement
| Concept | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 |
|---|---|---|---|---|---|---|
| Net Cash Provided by (Used in) Operating Activities | -1.35M | -1.28M | -3.45M | -1.62M | -1.11M | -415.00K |
| Payments to Acquire Property, Plant, and Equipment | — | 0 | 4.00K | 4.00K | 4.00K | 21.00K |
| Net Cash Provided by (Used in) Investing Activities | -64.00K | -23.00K | -78.00K | -57.00K | -41.00K | -41.00K |
| Net Cash Provided by (Used in) Financing Activities | -32.00K | -4.00K | -17.00K | -17.00K | -17.00K | 10.00K |
Raw XBRL tagging for a single filing
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Methodology
All facts on this page come straight from SEC EDGAR XBRL
company-facts filings (CLIR CIK 0001434524),
grouped by financial statement using FASB's base
us-gaap presentation taxonomy. Filers may re-parent
concepts onto different statements in their own extension
taxonomy, so a handful of rows can show up under a different
statement than on the actual 10-K / 10-Q; custom concepts and
any we couldn't map fall into Other. Hover a
cell to see the fully-qualified concept name and the filer's
description.
For the full methodology — statement grouping, the Other bucket, derived metrics, and fact tooltips — see the methodology reference for the statement grouping, the "Other" bucket, derived metrics, and fact tooltips.