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RESEARCH FRONTIERS INC — SC 13G Filings

5 SC 13G filings on record

This page lists all SC 13G filings submitted to the SEC by RESEARCH FRONTIERS INC (REFR), sorted by most recent first. Each row links to the full filing on EdgarLookup. RESEARCH FRONTIERS INC has filed 5 SC 13G documents with the SEC since 1995. To view all SEC filings by RESEARCH FRONTIERS INC, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-Q 10-Q/A 3 3/A 4 4/A 424B2 424B3 424B5 8-A12G 8-A12G/A 8-K 8-K/A CORRESP CT ORDER D DEF 14A DEFA14A EFFECT PRE 14A S-3 S-3/A S-8 SC 13D SC 13G SC 13G/A SCHEDULE 13G UPLOAD
Form Description Accession Number Filed Period
SC 13G — 0001997166-24-000002 Jan 24, 2024 —
SC 13G 13G 0001997166-23-000004 Oct 19, 2023 —
SC 13G — 0000834237-21-006840 Feb 2, 2021 —
SC 13G — 0001277537-13-000020 Sep 26, 2013 —
SC 13G SC 13G 0001193125-12-422079 Oct 12, 2012 —