PSYCHEMEDICS CORP reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Acton, MA
SEC filing record 1 source field available
Fiscal year end
31 December
PSYCHEMEDICS CORP has filed 877 SEC EDGAR filings since 11 Aug 1995

SEC filing history

Showing 576-600 of 609 matching filings.

Per page
25
Current page
24
SC 13G File 005-39145

SC 13G

Filing date
23 Dec 2010
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4

MAIN DOCUMENT DESCRIPTION

Filing date
23 Dec 2010
Reporting date
21 Dec 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
10-Q File 001-13738

10-Q filing

Filing date
12 Nov 2010
Reporting date
30 Sep 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
3

PRIMARY DOCUMENT

Filing date
05 Nov 2010
Reporting date
25 Oct 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
8-K File 001-13738

8-K filing

Filing date
04 Nov 2010
Reporting date
04 Nov 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
8-K File 001-13738

8-K filing

Filing date
28 Oct 2010
Reporting date
25 Oct 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
8-K File 001-13738

FORM 8-K

Filing date
23 Sep 2010
Reporting date
17 Sep 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
10-Q File 001-13738

10-Q filing

Filing date
13 Aug 2010
Reporting date
30 Jun 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
8-K File 001-13738

8-K filing

Filing date
10 Aug 2010
Reporting date
10 Aug 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
18 Jun 2010
Reporting date
15 May 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
18 Jun 2010
Reporting date
10 May 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
18 Jun 2010
Reporting date
10 May 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
18 Jun 2010
Reporting date
10 May 2009
SEC evidence
Open document Open filing
Next action
Verify source filing
10-Q File 001-13738

10-Q filing

Filing date
14 May 2010
Reporting date
31 Mar 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
8-K File 001-13738

8-K filing

Filing date
13 May 2010
Reporting date
11 May 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
3

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4

PRIMARY DOCUMENT

Filing date
09 Apr 2010
Reporting date
07 Apr 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .