ClearSign Technologies Corp — DEFA14A Filings
8 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by ClearSign Technologies Corp (CLIR), sorted by most recent first. Each row links to the full filing on EdgarLookup. ClearSign Technologies Corp has filed 8 DEFA14A documents with the SEC since 2008. To view all SEC filings by ClearSign Technologies Corp, see the full filings list.
All
10-K
10-K/A
10-Q
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
POS AM
PRE 14A
PREC14A
PREN14A
PRRN14A
REGDEX
RW
S-1
S-1/A
S-3
S-3/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001104659-25-067457 | Jul 11, 2025 | — |
| DEFA14A | DEFA14A | 0001558370-25-008617 | Jun 13, 2025 | — |
| DEFA14A | DEFA14A | 0001104659-24-073170 | Jun 20, 2024 | — |
| DEFA14A | DEFA14A | 0001104659-24-069756 | Jun 10, 2024 | — |
| DEFA14A | DEFA14A | 0001558370-24-007795 | May 10, 2024 | — |
| DEFA14A | DEFA14A | 0001558370-23-006670 | Apr 25, 2023 | — |
| DEFA14A | DEFA14A | 0001558370-22-005775 | Apr 22, 2022 | — |
| DEFA14A | DEFA14A | 0001144204-18-058904 | Nov 13, 2018 | — |