ClearSign Technologies Corp — All Filings
756 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
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10-Q/A
25-NSE
3
4
4/A
424B1
424B2
424B3
424B4
424B5
5
8-A12B
8-A12B/A
8-K
8-K/A
ARS
CERTNAS
CORRESP
D
D/A
DEF 14A
DEFA14A
DEFR14A
EFFECT
FWP
NT 10-Q
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PRE 14A
PREC14A
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REGDEX
RW
S-1
S-1/A
S-3
S-3/A
S-8
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SC 13D
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SCHEDULE 13D/A
SCHEDULE 13G
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-032244 | Mar 19, 2026 | Mar 16, 2026 |
| 8-K | FORM 8-K | 0001104659-26-025867 | Mar 10, 2026 | Mar 6, 2026 |
| 8-K | FORM 8-K | 0001104659-26-023536 | Mar 4, 2026 | Feb 26, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-022403 | Mar 2, 2026 | Feb 26, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-022401 | Mar 2, 2026 | Feb 26, 2026 |
| 8-K | FORM 8-K | 0001104659-26-019768 | Feb 25, 2026 | Feb 24, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-019278 | Feb 24, 2026 | Feb 20, 2026 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-26-010395 | Feb 4, 2026 | Feb 2, 2026 |
| DEF 14A | DEF 14A | 0001104659-26-009202 | Feb 2, 2026 | Feb 26, 2026 |
| PRE 14A | PRE 14A | 0001104659-26-006295 | Jan 23, 2026 | Feb 26, 2026 |
| 8-K | FORM 8-K | 0001104659-26-001752 | Jan 7, 2026 | — |
| 8-K | FORM 8-K | 0001104659-25-119321 | Dec 8, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-114991 | Nov 21, 2025 | Nov 19, 2025 |
| 8-K | FORM 8-K | 0001104659-25-113241 | Nov 17, 2025 | Nov 11, 2025 |
| 10-Q | 10-Q | 0001104659-25-112472 | Nov 14, 2025 | Sep 30, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-096763 | Oct 3, 2025 | Oct 1, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-096764 | Oct 3, 2025 | Oct 1, 2025 |
| 8-K | FORM 8-K | 0001104659-25-095017 | Sep 30, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-085648 | Aug 29, 2025 | Aug 26, 2025 |
| 424B4 | 424B4 | 0001104659-25-081941 | Aug 22, 2025 | — |
| EFFECT | — | 9999999995-25-002705 | Aug 21, 2025 | — |
| CORRESP | — | 0001104659-25-080995 | Aug 20, 2025 | — |
| S-1/A | FORM S-1/A | 0001104659-25-080929 | Aug 20, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-079277 | Aug 15, 2025 | Aug 14, 2025 |
| UPLOAD | — | 0000000000-25-008601 | Aug 14, 2025 | — |
| 10-Q | 10-Q | 0001558370-25-011555 | Aug 14, 2025 | Jun 30, 2025 |
| S-1 | FORM S-1 | 0001104659-25-076944 | Aug 12, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-075708 | Aug 8, 2025 | Aug 4, 2025 |
| 8-K | FORM 8-K | 0001104659-25-071166 | Jul 28, 2025 | Jul 25, 2025 |
| EFFECT | — | 9999999995-25-002374 | Jul 28, 2025 | — |
| UPLOAD | — | 0000000000-25-007802 | Jul 24, 2025 | — |
| CORRESP | — | 0001104659-25-070368 | Jul 24, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-068797 | Jul 18, 2025 | Jul 12, 2025 |
| S-3 | FORM S-3 | 0001104659-25-068740 | Jul 17, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-067452 | Jul 11, 2025 | Jun 27, 2025 |
| DEFA14A | DEFA14A | 0001104659-25-067457 | Jul 11, 2025 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-065885 | Jul 3, 2025 | Jul 1, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-065881 | Jul 3, 2025 | Jul 1, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-065882 | Jul 3, 2025 | Jul 1, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-065884 | Jul 3, 2025 | Jul 1, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-065883 | Jul 3, 2025 | Jul 1, 2025 |
| DEFA14A | DEFA14A | 0001558370-25-008617 | Jun 13, 2025 | — |
| ARS | ARS | 0001558370-25-008620 | Jun 13, 2025 | Dec 31, 2024 |
| DEF 14A | DEF 14A | 0001558370-25-008616 | Jun 13, 2025 | Jul 25, 2025 |
| PREC14A | PREC14A | 0001558370-25-008241 | May 29, 2025 | — |
| 10-K/A | FORM 10-K/A | 0001104659-25-053646 | May 28, 2025 | Dec 31, 2024 |
| 8-K | FORM 8-K | 0001104659-25-052998 | May 27, 2025 | May 22, 2025 |
| 3 | OWNERSHIP DOCUMENT | 0001104659-25-053130 | May 27, 2025 | May 22, 2025 |
| 3 | OWNERSHIP DOCUMENT | 0001104659-25-053132 | May 27, 2025 | May 22, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-053133 | May 27, 2025 | May 22, 2025 |