497 filings
S-8
CLIR
ClearSign Technologies Corp
31 Mar 23
Registration of securities for employees
4:38pm
10-K
2022 FY
CLIR
ClearSign Technologies Corp
Annual report
31 Mar 23
4:06pm
8-K
CLIR
ClearSign Technologies Corp
24 Feb 23
ClearSign Technologies Corporation Announces Board Transitions
4:06pm
4
Lacy Catharine de
23 Feb 23
ClearSign Technologies / Lacy Catharine de ownership change
8:10pm
3
Lacy Catharine de
23 Feb 23
ClearSign Technologies / Lacy Catharine de ownership change
8:09pm
4
Brent Hinds
14 Feb 23
ClearSign Technologies / Brent Hinds ownership change
8:02pm
4
CLIR
ClearSign Technologies Corp
14 Feb 23
ClearSign Technologies / Colin James Deller ownership change
8:01pm
4
Gary J. DiElsi
4 Jan 23
ClearSign Technologies / Gary J. DiElsi ownership change
8:21pm
4
CLIR
ClearSign Technologies Corp
4 Jan 23
ClearSign Technologies / Judith S Schrecker ownership change
8:20pm
4
Meline Susanne
4 Jan 23
ClearSign Technologies / Susanne Meline ownership change
8:20pm
4
HOFFMAN Robert Thurston Sr
4 Jan 23
ClearSign Technologies / Robert Thurston HOFFMAN Sr ownership change
8:20pm
8-K
CLIR
ClearSign Technologies Corp
9 Dec 22
Regulation FD Disclosure
5:16pm
10-Q
2022 Q3
CLIR
ClearSign Technologies Corp
Quarterly report
14 Nov 22
4:07pm
8-K
CLIR
ClearSign Technologies Corp
4 Nov 22
Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard
4:32pm
4
Judith S Schrecker
4 Oct 22
ClearSign Technologies / Judith S Schrecker ownership change
4:35pm
4
Meline Susanne
4 Oct 22
ClearSign Technologies / Susanne Meline ownership change
4:33pm
4
CLIR
ClearSign Technologies Corp
4 Oct 22
ClearSign Technologies / Robert Thurston HOFFMAN Sr ownership change
4:33pm
4
Gary J. DiElsi
4 Oct 22
ClearSign Technologies / Gary J. DiElsi ownership change
4:29pm
8-K
CLIR
ClearSign Technologies Corp
6 Sep 22
ClearSign Technologies Corporation Provides Second Quarter 2022 Update
8:00am
4
Gary J. DiElsi
25 Aug 22
ClearSign Technologies / Gary J. DiElsi ownership change
6:33pm