ClearSign Technologies Corp reports

Company location: Tulsa, OK
Fiscal year end: 31 December

ClearSign Technologies Corp has filed 785 SEC EDGAR filings since 05 May 2008

Filter by type:
10-K
10-Q
8-K
SC13D
SC13G

SEC filing history

Showing 501-525 of 784 matching filings.

Per page

25

Current page

21

8-K File 001-35521

FORM 8-K

Filing date: 05 May 2017
Reporting date: 04 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 21 Apr 2017
Reporting date: 19 Apr 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 13 Apr 2017
Reporting date: 07 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 001-35521

DEF 14A

Filing date: 17 Mar 2017
Reporting date: 04 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 15 Mar 2017
Reporting date: 15 Mar 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A File 005-86820

SC 13D/A

Filing date: 14 Mar 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13D/A File 005-86820

SC 13D/A

Filing date: 08 Mar 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 14 Feb 2017
Reporting date: 10 Feb 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-35521

FORM 10-K

Filing date: 14 Feb 2017
Reporting date: 31 Dec 2016
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4/A

OWNERSHIP DOCUMENT

Filing date: 26 Jan 2017
Reporting date: 25 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 26 Jan 2017
Reporting date: 25 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 26 Jan 2017
Reporting date: 25 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 26 Jan 2017
Reporting date: 25 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 26 Jan 2017
Reporting date: 25 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 26 Jan 2017
Reporting date: 25 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 26 Jan 2017
Reporting date: 25 Jan 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .