ClearSign Technologies CLIR SEC Filings

NASDAQ CLIR
$2.36 -0.13 (-5.22%)
As of: Oct 21, 2026 · 3:59 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing ClearSign Technologies Corp (CLIR) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
14Insider Transaction0001104659-26-113417Oct 2, 2026 3:01 AM
24Insider Transaction0001104659-26-113415Oct 2, 2026 3:00 AM
34Insider Transaction0001104659-26-113413Oct 2, 2026 3:00 AM
44Insider Transaction0001104659-26-113412Oct 2, 2026 3:00 AM
58-KCurrent Report0001104659-26-107294Sep 14, 2026 12:45 PM
68-KCurrent Report0001104659-26-099235Aug 20, 2026 8:15 PM
710-QQuarterly & Annual Report0001104659-26-096539Aug 14, 2026 9:00 AM
83Insider Transaction0001104659-26-094205Aug 11, 2026 10:00 PM
98-KCurrent Report0001104659-26-093758Aug 11, 2026 7:45 AM
10DOthers0001104659-26-089253Jul 31, 2026 8:30 PM
11SCHEDULE 13GBeneficial Ownership Report0001227099-26-000006Jul 24, 2026 8:48 PM
124Insider Transaction0001227099-26-000005Jul 24, 2026 8:46 PM
138-KCurrent Report0001104659-26-086099Jul 23, 2026 12:45 PM
14S-8Prospectus0001104659-26-080759Jul 6, 2026 8:16 PM
158-KCurrent Report0001104659-26-080744Jul 6, 2026 8:06 PM
16424B5Prospectus0001104659-26-080740Jul 6, 2026 8:05 PM
174Insider Transaction0001104659-26-080470Jul 2, 2026 11:01 PM
184Insider Transaction0001104659-26-080468Jul 2, 2026 11:01 PM
194Insider Transaction0001104659-26-080466Jul 2, 2026 11:00 PM
208-KCurrent Report0001104659-26-075734Jun 18, 2026 8:15 PM
218-KCurrent Report0001104659-26-071865Jun 9, 2026 4:30 PM
228-KCurrent Report0001104659-26-068614Jun 1, 2026 12:30 PM
23424B5Prospectus0001104659-26-068611Jun 1, 2026 12:25 PM
24424B5Prospectus0001104659-26-067545May 28, 2026 8:31 PM
258-KCurrent Report0001104659-26-067517May 28, 2026 8:19 PM
268-KCurrent Report0001104659-26-065175May 21, 2026 8:30 PM
2710-QQuarterly & Annual Report0001104659-26-061940May 15, 2026 1:20 PM
28ARSOthers0001104659-26-050341Apr 28, 2026 8:10 PM
29ARSOthers0001104659-26-050341Apr 28, 2026 8:10 PM
30ARSOthers0001104659-26-050341Apr 28, 2026 8:10 PM
31DEFA14AOthers0001104659-26-050320Apr 28, 2026 8:05 PM
32DEFA14AOthers0001104659-26-050320Apr 28, 2026 8:05 PM
33DEFA14AOthers0001104659-26-050320Apr 28, 2026 8:05 PM
34DEF 14AOthers0001104659-26-049883Apr 28, 2026 3:09 PM
35DEF 14AOthers0001104659-26-049883Apr 28, 2026 3:09 PM
36DEF 14AOthers0001104659-26-049883Apr 28, 2026 3:09 PM
374Insider Transaction0001104659-26-049608Apr 27, 2026 12:01 AM
384Insider Transaction0001104659-26-049608Apr 27, 2026 12:01 AM
394Insider Transaction0001104659-26-049608Apr 27, 2026 12:01 AM
404Insider Transaction0001104659-26-049607Apr 27, 2026 12:00 AM
414Insider Transaction0001104659-26-049607Apr 27, 2026 12:00 AM
424Insider Transaction0001104659-26-049607Apr 27, 2026 12:00 AM
438-KCurrent Report0001104659-26-042017Apr 10, 2026 8:15 PM
444Insider Transaction0001104659-26-039311Apr 2, 2026 11:02 PM
454Insider Transaction0001104659-26-039311Apr 2, 2026 11:02 PM
464Insider Transaction0001104659-26-039311Apr 2, 2026 11:02 PM
474Insider Transaction0001104659-26-039310Apr 2, 2026 11:01 PM
484Insider Transaction0001104659-26-039309Apr 2, 2026 11:00 PM
494Insider Transaction0001104659-26-039309Apr 2, 2026 11:00 PM
504Insider Transaction0001104659-26-039309Apr 2, 2026 11:00 PM
...

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