CLIR News
Official issuer or fund updates, exact SEC current reports, and large established publisher coverage, newest first. Every lawfully retained item remains in the corpus; each public page contains at most 100 rows. Headlines open the exact source; summaries are concise descriptions and not investment recommendations. Captured 2026-08-31.
| Date | Type | Publisher | Headline | Summary |
|---|---|---|---|---|
| 2026-08-20 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-08-11 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,7.01,9.01. |
| 2026-07-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,3.02,7.01,9.01. |
| 2026-07-06 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2026-06-18 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2026-06-09 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.07,9.01. |
| 2026-06-01 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,8.01,9.01. |
| 2026-05-28 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2026-05-21 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-04-10 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-03-30 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2026-03-10 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.03,5.03,7.01,9.01. |
| 2026-03-04 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.07,5.08,9.01. |
| 2026-02-25 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-01-07 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-12-08 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01. |
| 2025-11-21 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-11-17 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.03,8.01,9.01. |
| 2025-09-30 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,9.01. |
| 2025-08-29 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01. |
| 2025-08-15 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-08-08 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,5.02,8.01,9.01. |
| 2025-07-28 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.07. |
| 2025-07-18 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,8.01,9.01. |
| 2025-07-11 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01. |
| 2025-05-27 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,5.02,7.01,9.01. |
| 2025-05-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-04-04 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,3.01,7.01,9.01. |
| 2024-12-09 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2024-11-21 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-10-30 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,9.01. |
| 2024-10-01 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.05. |
| 2024-08-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-08-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K/A | ClearSign Technologies Corp filed Form 8-K/A covering items 5.07,9.01. |
| 2024-08-06 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,7.01,9.01. |
| 2024-06-28 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K/A | ClearSign Technologies Corp filed Form 8-K/A covering items 5.07. |
| 2024-06-26 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,3.02,5.03,5.07,9.01. |
| 2024-06-20 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,8.01,9.01. |
| 2024-06-07 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01. |
| 2024-05-28 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-05-10 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.02,8.01,9.01. |
| 2024-05-03 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,8.01,9.01. |
| 2024-04-25 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,8.01,9.01. |
| 2024-04-24 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,7.01,8.01,9.01. |
| 2024-04-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,3.02,9.01. |
| 2024-04-19 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,3.02,7.01,9.01. |
| 2024-02-07 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-01-05 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,9.01. |
| 2023-11-27 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,9.01. |
| 2023-11-15 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2023-09-22 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2023-09-01 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2023-08-29 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2023-06-15 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,3.03,5.03,7.01,9.01. |
| 2023-06-08 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.07,9.01. |
| 2023-05-30 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2023-05-24 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2023-05-02 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,9.01. |
| 2023-04-07 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2023-02-24 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,7.01,9.01. |
| 2022-12-09 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2022-11-04 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,9.01. |
| 2022-09-06 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2022-08-02 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,9.01. |
| 2022-06-07 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,5.07,7.01,9.01. |
| 2022-06-01 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01,9.01. |
| 2022-05-31 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,8.01,9.01. |
| 2022-04-08 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2021-11-29 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,7.01,9.01. |
| 2021-10-18 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,7.01,9.01. |
| 2021-09-10 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,5.03,7.01,9.01. |
| 2021-07-30 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,7.01,9.01. |
| 2021-07-07 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 4.01,9.01. |
| 2021-06-21 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,5.07,7.01,9.01. |
| 2021-04-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02. |
| 2021-03-31 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K/A | ClearSign Technologies Corp filed Form 8-K/A covering items 5.02. |
| 2021-03-25 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,9.01. |
| 2021-03-08 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02. |
| 2020-12-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,9.01. |
| 2020-11-23 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2020-09-17 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2020-08-21 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,8.01,9.01. |
| 2020-07-13 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01. |
| 2020-07-01 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01. |
| 2020-06-22 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01,5.07. |
| 2020-06-18 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2020-04-21 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2020-04-17 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,5.03,8.01. |
| 2020-03-13 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.02,9.01. |
| 2020-02-20 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02,7.01,8.01,9.01. |
| 2020-01-17 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 3.01. |
| 2020-01-15 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.02. |
| 2019-11-15 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2019-09-27 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 2.06. |
| 2019-08-28 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 1.01,9.01. |
| 2019-08-16 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2019-07-10 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 8.01. |
| 2019-07-10 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 7.01,9.01. |
| 2019-06-12 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K | ClearSign Technologies Corp filed Form 8-K covering items 5.03,9.01. |
| 2019-06-05 | Current report | SEC filing | ClearSign Technologies Corp filed Form 8-K/A | ClearSign Technologies Corp filed Form 8-K/A covering items 5.07. |