ClearSign Technologies Corp

CLIR - Company ID 0001434524

Market cap-

Rank-

Filings769

ClearSign Technologies Corp has filed 769 public company documents 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.

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Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.

Type	Filing	Filed	Period covered	Open
8-K	Major company event	3mo ago2026-05-21	2026-05-20	View filing
10-Q	Quarterly report	3mo ago2026-05-15	2026-03-31	View filing
ARS	Annual report to shareholders	4mo ago2026-04-28	2025-12-31	View filing
DEFA14A	Proxy materials	4mo ago2026-04-28	-	View filing
DEF 14A	Proxy statement	4mo ago2026-04-28	2026-06-08	View filing
4/A	Insider trade (amended)	4mo ago2026-04-27	2026-02-26	View filing
4	Insider trade	4mo ago2026-04-27	2026-04-23	View filing
8-K	Major company event	5mo ago2026-04-10	2026-04-09	View filing
4	Insider trade	5mo ago2026-04-02	2026-03-31	View filing
4	Insider trade	5mo ago2026-04-02	2026-03-31	View filing
4	Insider trade	5mo ago2026-04-02	2026-03-31	View filing
10-K	Annual report	5mo ago2026-03-31	2025-12-31	View filing
8-K	Major company event	5mo ago2026-03-30	2026-03-30	View filing
4	Insider trade	5mo ago2026-03-19	2026-03-16	View filing
8-K	Major company event	6mo ago2026-03-10	2026-03-06	View filing
8-K	Major company event	6mo ago2026-03-04	2026-02-26	View filing
4	Insider trade	6mo ago2026-03-02	2026-02-26	View filing
4	Insider trade	6mo ago2026-03-02	2026-02-26	View filing
8-K	Major company event	6mo ago2026-02-25	2026-02-24	View filing
4	Insider trade	6mo ago2026-02-24	2026-02-20	View filing
4	Insider trade	7mo ago2026-02-04	2026-02-02	View filing
DEF 14A	Proxy statement	7mo ago2026-02-02	2026-02-26	View filing
PRE 14A	PRE 14A	7mo ago2026-01-23	2026-02-26	View filing
8-K	Major company event	8mo ago2026-01-07	2026-01-07	View filing
8-K	Major company event	9mo ago2025-12-08	2025-12-08	View filing
8-K	Major company event	9mo ago2025-11-21	2025-11-19	View filing
8-K	Major company event	9mo ago2025-11-17	2025-11-11	View filing
10-Q	Quarterly report	9mo ago2025-11-14	2025-09-30	View filing
4	Insider trade	11mo ago2025-10-03	2025-10-01	View filing
4	Insider trade	11mo ago2025-10-03	2025-10-01	View filing
8-K	Major company event	11mo ago2025-09-30	2025-09-30	View filing
8-K	Major company event	1y ago2025-08-29	2025-08-26	View filing
424B4	424B4	1y ago2025-08-22	-	View filing
EFFECT	EFFECT	1y ago2025-08-21	-	View filing
CORRESP	Company correspondence	1y ago2025-08-20	-	View filing
S-1/A	S-1/A	1y ago2025-08-20	-	View filing
8-K	Major company event	1y ago2025-08-15	2025-08-14	View filing
10-Q	Quarterly report	1y ago2025-08-14	2025-06-30	View filing
UPLOAD	SEC correspondence	1y ago2025-08-14	-	View filing
S-1	IPO registration	1y ago2025-08-12	-	View filing
8-K	Major company event	1y ago2025-08-08	2025-08-04	View filing
EFFECT	EFFECT	1y ago2025-07-28	-	View filing
8-K	Major company event	1y ago2025-07-28	2025-07-25	View filing
CORRESP	Company correspondence	1y ago2025-07-24	-	View filing
UPLOAD	SEC correspondence	1y ago2025-07-24	-	View filing
8-K	Major company event	1y ago2025-07-18	2025-07-12	View filing
S-3	Securities registration	1y ago2025-07-17	-	View filing
DEFA14A	Proxy materials	1y ago2025-07-11	-	View filing
8-K	Major company event	1y ago2025-07-11	2025-06-27	View filing
4	Insider trade	1y ago2025-07-03	2025-07-01	View filing

ClearSign Technologies Corp

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