ClearSign Technologies Corp — SCHEDULE 13D/A Filings
1 SCHEDULE 13D/A filing on record
This page lists all SCHEDULE 13D/A 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 1 SCHEDULE 13D/A document 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 |
|---|---|---|---|---|
| SCHEDULE 13D/A | — | 0001014108-25-000018 | Feb 19, 2025 | — |