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PSYCHEMEDICS CORP — SC 13D Filings

5 SC 13D filings on record

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

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-Q 10-Q/A 10KSB 10KSB/A 10QSB 144 15-12G 25 3 4 4/A 424B3 5 8-A12B 8-A12B/A 8-K 8-K/A ARS CERTAMX CERTNAS CORRESP DEF 14A DEFA14A DEFR14A EFFECT NT 10-Q POS AM PRE 14A PRER14A S-8 S-8 POS SC 13D SC 13D/A SC 13E3 SC 13E3/A SC 13G SC 13G/A UPLOAD
Form Description Accession Number Filed Period
SC 13D — 0001171520-20-000488 Dec 30, 2020 —
SC 13D — 0001070851-03-000002 Mar 12, 2003 —
SC 13D — 0001070851-02-000004 Feb 15, 2002 —
SC 13D — 0001070851-01-000002 Feb 7, 2001 —
SC 13D — 0001070851-00-000001 Apr 6, 2000 —