04/23/2024
6:00 AM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
04/23/2024
5:02 AM | ClearSign Technologies (Filer)
| Form 424B5 | |
04/19/2024
7:45 AM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
04/19/2024
5:02 AM | ClearSign Technologies (Filer)
| Form 424B5 | |
04/10/2024
4:00 PM | ClearSign Technologies (Issuer)
Hinds Brent (Reporting)
| Form 4/A | |
04/02/2024
4:32 PM | ClearSign Technologies (Issuer)
de Lacy Catharine (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
04/02/2024
4:34 PM | ClearSign Technologies (Issuer)
HOFFMAN Robert Thurston Sr (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
|
04/02/2024
4:36 PM | ClearSign Technologies (Issuer)
Schrecker Judith S (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
04/01/2024
6:02 AM | ClearSign Technologies (Filer)
| Form 10-K
Annual report pursuant to Section 13 or 15(d) | |
04/01/2024
6:06 AM | ClearSign Technologies (Filer)
| Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans | |
03/19/2024
5:04 AM | ClearSign Technologies (Subject)
| Form FWP | |
03/18/2024
5:01 AM | ClearSign Technologies (Filer)
| Form 424B5 | |
03/18/2024
5:05 AM | ClearSign Technologies (Filer)
| Form 424B5 | |
02/07/2024
7:45 AM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/06/2024
3:45 PM | ClearSign Technologies (Issuer)
Hinds Brent (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/05/2024
10:31 AM | ClearSign Technologies (Subject)
clirSPV LLC (Filed by)
| Form SC 13D/A | |
02/02/2024
5:58 PM | ClearSign Technologies (Issuer)
clirSPV LLC (Reporting)
GPclirSPV LLC (Reporting)
HOFFMAN Robert Thurston Sr (Reporting)
Princeton Opportunity Management LLC (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/05/2024
3:30 PM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
01/03/2024
3:30 PM | ClearSign Technologies (Issuer)
de Lacy Catharine (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/03/2024
3:31 PM | ClearSign Technologies (Issuer)
HOFFMAN Robert Thurston Sr (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/03/2024
3:31 PM | ClearSign Technologies (Issuer)
Schrecker Judith S (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/27/2023
4:25 PM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
10/04/2023
4:40 PM | ClearSign Technologies (Issuer)
Schrecker Judith S (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/04/2023
4:47 PM | ClearSign Technologies (Issuer)
de Lacy Catharine (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/04/2023
4:25 PM | ClearSign Technologies (Issuer)
DiElsi Gary J. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/04/2023
4:30 PM | ClearSign Technologies (Issuer)
HOFFMAN Robert Thurston Sr (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/01/2023
3:31 PM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
09/01/2023
3:15 PM | ClearSign Technologies (Filer)
| Form 424B3 | |
08/30/2023
11:15 PM | ClearSign Technologies (Filer)
| Form EFFECT | |
08/29/2023
3:15 PM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
08/14/2023
7:01 AM | ClearSign Technologies (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
08/11/2023
4:15 PM | ClearSign Technologies (Filer)
| Form 8-A12B/A | |
07/06/2023
2:48 PM | ClearSign Technologies (Issuer)
DiElsi Gary J. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/06/2023
2:48 PM | ClearSign Technologies (Issuer)
HOFFMAN Robert Thurston Sr (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/15/2023
7:45 AM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/30/2023
5:07 AM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/24/2023
5:08 AM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/02/2023
4:23 PM | ClearSign Technologies (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
04/25/2023
3:48 PM | ClearSign Technologies (Filer)
| Form DEFA14A | |
04/25/2023
3:46 PM | ClearSign Technologies (Filer)
| Form DEF 14A | |
