CLIR - CIK 0001434524
ClearSign Technologies Corp has filed 769 documents with the SEC between 2008 and 2026. The most frequent type is insider trade (294 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Insider trade | 4 | 2022-01-05 | 2022-01-03 |
| Insider trade | 4 | 2022-01-05 | 2022-01-03 |
| SEC correspondence | UPLOAD | 2022-01-05 | - |
| Company correspondence | CORRESP | 2021-12-23 | - |
| Quarterly report (amended) | 10-Q/A | 2021-12-23 | 2021-09-30 |
| Quarterly report (amended) | 10-Q/A | 2021-12-23 | 2021-06-30 |
| SEC correspondence | UPLOAD | 2021-12-16 | - |
| Major company event | 8-K | 2021-11-29 | 2021-11-23 |
| Insider trade | 4 | 2021-11-18 | 2021-11-16 |
| Insider trade | 4 | 2021-11-18 | 2021-11-16 |
| Insider trade | 4 | 2021-11-18 | 2021-11-16 |
| Insider trade | 4 | 2021-11-18 | 2021-11-16 |
| Quarterly report | 10-Q | 2021-11-12 | 2021-09-30 |
| Insider trade | 4 | 2021-10-18 | 2021-10-18 |
| New insider ownership | 3 | 2021-10-18 | 2021-10-18 |
| Major company event | 8-K | 2021-10-18 | 2021-10-18 |
| Major company event | 8-K | 2021-09-10 | 2021-09-08 |
| Insider trade | 4 | 2021-08-26 | 2021-08-24 |
| Insider trade | 4 | 2021-08-26 | 2021-08-24 |
| Insider trade | 4 | 2021-08-26 | 2021-08-24 |
| Insider trade | 4 | 2021-08-26 | 2021-08-24 |
| Quarterly report | 10-Q | 2021-08-20 | 2021-06-30 |
| NT 10-Q | - | 2021-08-16 | 2021-06-30 |
| Insider trade | 4 | 2021-07-30 | 2021-07-28 |
| Major company event | 8-K | 2021-07-30 | 2021-07-29 |
| Major company event | 8-K | 2021-07-07 | 2021-07-01 |
| S-8 POS | - | 2021-07-02 | - |
| S-8 POS | - | 2021-07-02 | - |
| S-8 POS | - | 2021-07-02 | - |
| S-8 POS | - | 2021-07-02 | - |
| Employee stock plan | S-8 | 2021-07-02 | - |
| Major company event | 8-K | 2021-06-21 | 2021-06-15 |
| Quarterly report | 10-Q | 2021-05-17 | 2021-03-31 |
| Proxy statement | DEF 14A | 2021-05-07 | 2021-06-17 |
| Annual report (amended) | 10-K/A | 2021-04-30 | 2020-12-31 |
| Major company event | 8-K | 2021-04-23 | 2021-04-20 |
| Major company event (amended) | 8-K/A | 2021-03-31 | 2021-03-04 |
| Annual report | 10-K | 2021-03-31 | 2020-12-31 |
| Major company event | 8-K | 2021-03-25 | 2021-03-23 |
| New insider ownership | 3 | 2021-03-11 | 2021-03-04 |
| Major company event | 8-K | 2021-03-08 | 2021-03-04 |
| Insider trade | 4 | 2021-01-25 | 2021-01-22 |
| Insider trade | 4 | 2021-01-25 | 2021-01-22 |
| Insider trade | 4 | 2021-01-25 | 2021-01-22 |
| Insider trade | 4 | 2021-01-12 | 2021-01-10 |
| Insider trade | 4 | 2021-01-12 | 2021-01-10 |
| Insider trade | 4 | 2021-01-05 | 2021-01-03 |
| Major company event | 8-K | 2020-12-23 | 2020-12-18 |
| Prospectus supplement | 424B5 | 2020-12-23 | - |
| Major company event | 8-K | 2020-11-23 | 2020-11-19 |