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

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SEC filing history

Showing 476-500 of 784 matching filings.

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20

4

OWNERSHIP DOCUMENT

Filing date: 06 Dec 2017
Reporting date: 04 Dec 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

RW File 333-221467

REGISTRATION WITHDRAWAL

Filing date: 06 Dec 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-1/A File 333-221467

AMENDMENT NO. 1 TO FORM S-1

Filing date: 27 Nov 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 17 Nov 2017
Reporting date: 09 Nov 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

S-1 File 333-221467

FORM S-1

Filing date: 09 Nov 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-35521

FORM 10-Q

Filing date: 09 Nov 2017
Reporting date: 30 Sep 2017
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 02 Nov 2017
Reporting date: 30 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 08 Sep 2017
Reporting date: 07 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 08 Sep 2017
Reporting date: 07 Sep 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 23 Aug 2017
Reporting date: 22 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 22 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 22 Aug 2017
Reporting date: 21 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 18 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

8-K

Filing date: 15 Aug 2017
Reporting date: 14 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-35521

10-Q

Filing date: 14 Aug 2017
Reporting date: 30 Jun 2017
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 28 Jun 2017
Reporting date: 27 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 27 Jun 2017
Reporting date: 23 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 27 Jun 2017
Reporting date: 23 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 27 Jun 2017
Reporting date: 23 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 27 Jun 2017
Reporting date: 23 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 27 Jun 2017
Reporting date: 23 Jun 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

3

OWNERSHIP DOCUMENT

Filing date: 16 May 2017
Reporting date: 11 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 11 May 2017
Reporting date: 11 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-35521

FORM 8-K

Filing date: 11 May 2017
Reporting date: 11 May 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-35521

FORM 10-Q

Filing date: 11 May 2017
Reporting date: 31 Mar 2017
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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