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 | 2024-08-05 | 2024-08-01 |
| New insider ownership | 3 | 2024-08-05 | 2024-08-01 |
| 424B4 | - | 2024-07-15 | - |
| EFFECT | - | 2024-07-12 | - |
| Company correspondence | CORRESP | 2024-07-10 | - |
| D | - | 2024-07-09 | - |
| Insider trade | 4 | 2024-07-03 | 2024-07-01 |
| Insider trade | 4 | 2024-07-03 | 2024-07-01 |
| Insider trade | 4 | 2024-07-03 | 2024-07-01 |
| S-1/A | - | 2024-07-03 | - |
| Major company event (amended) | 8-K/A | 2024-06-28 | 2024-06-24 |
| Insider trade | 4 | 2024-06-26 | 2024-06-24 |
| Major company event | 8-K | 2024-06-26 | 2024-06-24 |
| Activist ownership stake (update) | SC 13D/A | 2024-06-26 | - |
| Proxy materials | DEFA14A | 2024-06-20 | - |
| Major company event | 8-K | 2024-06-20 | 2024-06-16 |
| Proxy materials | DEFA14A | 2024-06-10 | - |
| Major company event | 8-K | 2024-06-07 | 2024-06-03 |
| SEC correspondence | UPLOAD | 2024-05-29 | - |
| Major company event | 8-K | 2024-05-28 | 2024-05-23 |
| IPO registration | S-1 | 2024-05-20 | - |
| Quarterly report | 10-Q | 2024-05-15 | 2024-03-31 |
| Annual report to shareholders | ARS | 2024-05-10 | 2023-12-31 |
| Proxy materials | DEFA14A | 2024-05-10 | - |
| Proxy statement | DEF 14A | 2024-05-10 | 2024-06-25 |
| Major company event | 8-K | 2024-05-10 | 2024-05-10 |
| D | - | 2024-05-08 | - |
| Major company event | 8-K | 2024-05-03 | 2024-05-02 |
| PRE 14A | - | 2024-04-30 | 2024-06-25 |
| Annual report (amended) | 10-K/A | 2024-04-26 | 2023-12-31 |
| Major company event | 8-K | 2024-04-25 | 2024-04-23 |
| Insider trade | 4 | 2024-04-25 | 2024-04-23 |
| New insider ownership | 3 | 2024-04-25 | 2024-04-23 |
| Major company event | 8-K | 2024-04-24 | 2024-04-23 |
| Major company event | 8-K | 2024-04-23 | 2024-04-22 |
| Prospectus supplement | 424B5 | 2024-04-23 | - |
| Major company event | 8-K | 2024-04-19 | 2024-04-19 |
| Prospectus supplement | 424B5 | 2024-04-19 | - |
| Insider trade (amended) | 4/A | 2024-04-10 | 2024-02-22 |
| Insider trade | 4 | 2024-04-02 | 2024-04-01 |
| Insider trade | 4 | 2024-04-02 | 2024-04-01 |
| Insider trade | 4 | 2024-04-02 | 2024-04-01 |
| Annual report | 10-K | 2024-04-01 | 2023-12-31 |
| Employee stock plan | S-8 | 2024-04-01 | - |
| Free writing prospectus | FWP | 2024-03-19 | - |
| Prospectus supplement | 424B5 | 2024-03-18 | - |
| Prospectus supplement | 424B5 | 2024-03-18 | - |
| Insider trade | 4 | 2024-02-26 | 2024-02-22 |
| Insider trade (amended) | 4/A | 2024-02-26 | 2024-02-02 |
| Insider trade (amended) | 4/A | 2024-02-26 | 2023-02-02 |