Quick Answer
ClearSign Technologies Corp reported Long-Term Debt of $251.0 thousand for fiscal year 2020.
ClearSign Technologies Corp Long-Term Debt — Annual History
| Fiscal Year | Long-Term Debt | YoY Change |
|---|---|---|
| 2020 | $251.0K | — |
Quarterly Long-Term Debt
| Quarter Ending | Long-Term Debt | YoY | QoQ |
|---|---|---|---|
| September 30, 2021 | $0.00 | -100.0% | — |
| June 30, 2021 | $0.00 | -100.0% | -100.0% |
| March 31, 2021 | $251.0K | — | +0.0% |
| December 31, 2020 | $251.0K | — | +0.0% |
| September 30, 2020 | $251.0K | — | +0.0% |
| June 30, 2020 | $251.0K | — | — |
| December 31, 2019 | $0.00 | — | — |
- The most recent figure is from ClearSign Technologies Corp’s fiscal year 2021 report (Form 10-K), filed with the SEC on March 31, 2022.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
Last verified: