PSYCHEMEDICS CORP — SC 13G Filings
24 SC 13G filings on record
This page lists all SC 13G 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 24 SC 13G documents with the SEC since 1995. To view all SEC filings by PSYCHEMEDICS CORP, see the full filings list.
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 13G | SC 13G | 0001104659-23-125950 | Dec 14, 2023 | — |
| SC 13G | FORM SC 13G | 0001171843-21-000661 | Feb 2, 2021 | — |
| SC 13G | TIETON CAPITAL MANAGEMENT 13G/A | 0001381954-20-000003 | Jan 27, 2020 | — |
| SC 13G | — | 0001398344-19-002978 | Feb 14, 2019 | — |
| SC 13G | SCHEDULE 13G HOLDINGS REPORT | 0001172661-19-000251 | Jan 25, 2019 | — |
| SC 13G | TIETON CAPITAL MANAGEMENT 13G | 0001381954-15-000005 | Feb 5, 2015 | — |
| SC 13G | 13G FOR PSYCHEMEDICS CORP | 0000884589-14-000007 | Feb 11, 2014 | — |
| SC 13G | PMD 123110 13G | 0001325312-11-000016 | Feb 1, 2011 | — |
| SC 13G | SC 13G | 0000950123-10-116288 | Dec 23, 2010 | — |
| SC 13G | PMD 13G 022810 | 0001325312-10-000010 | Mar 2, 2010 | — |
| SC 13G | SCHEDULE 13G | 0001193125-10-028413 | Feb 11, 2010 | — |
| SC 13G | 123109 PSYCHEMEDICA 13G | 0001325312-10-000004 | Feb 10, 2010 | — |
| SC 13G | — | 0000906304-10-000004 | Jan 7, 2010 | — |
| SC 13G | 123108 PSYCHEMEDICS 13G | 0001325312-09-000005 | Jan 9, 2009 | — |
| SC 13G | SC 13G | 0001104659-08-010122 | Feb 14, 2008 | — |
| SC 13G | SCHEDULE 13G | 0001193805-08-000538 | Feb 13, 2008 | — |
| SC 13G | PSYCHEMEDICS 13G 123107 | 0001325312-08-000005 | Jan 25, 2008 | — |
| SC 13G | SC 13G | 0001104659-07-063110 | Aug 16, 2007 | — |
| SC 13G | SCHEDUOLE 13G - PSYCHMEDICS CORP. | 0001072613-06-000385 | Feb 13, 2006 | — |
| SC 13G | PSYCHEMEDICS CORPORATION | 0001193125-06-023768 | Feb 8, 2006 | — |
| SC 13G | — | 0000919574-04-002030 | Jul 8, 2004 | — |
| SC 13G | DONALD F. FLYNN RE: PSYCHEMEDICS CORPORATION | 0000950135-04-002358 | May 5, 2004 | — |
| SC 13G | PSYCHEMEDICS CORPORATION | 0000950124-97-005285 | Oct 14, 1997 | — |
| SC 13G | — | 0001004522-97-000034 | Feb 18, 1997 | — |