ClearSign Technologies Corp — SC 13D Filings

3 SC 13D filings on record

This page lists all SC 13D 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 3 SC 13D documents with the SEC since 2008. To view all SEC filings by ClearSign Technologies Corp, see the full filings list.

Overview All Filings Financials Insiders

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
SC 13D	SCHEDULE 13D	0001144204-19-002096	Jan 18, 2019	—
SC 13D	SC 13D	0001062993-18-003059	Jul 30, 2018	—
SC 13D	SCHEDULE 13D	0001144204-12-025214	May 1, 2012	—