PSYCHEMEDICS CORP — 10-K/A Filings
4 10-K/A filings on record
This page lists all 10-K/A 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 4 10-K/A 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 |
|---|---|---|---|---|
| 10-K/A | FORM 10-K/A | 0001171843-23-002005 | Mar 30, 2023 | Dec 31, 2022 |
| 10-K/A | FORM 10-K/A | 0001171843-21-002411 | Apr 9, 2021 | Dec 31, 2020 |
| 10-K/A | FORM 10-K/A | 0001171843-20-001337 | Feb 27, 2020 | Dec 31, 2019 |
| 10-K/A | PSYCHEMEDICS, CORP. | 0000950135-98-000241 | Jan 27, 1998 | Dec 31, 1996 |