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 551-575 of 609 matching filings.

Per page
25
Current page
23
4

PRIMARY DOCUMENT

Filing date
12 May 2011
Reporting date
10 May 2011
SEC evidence
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4

PRIMARY DOCUMENT

Filing date
12 May 2011
Reporting date
10 May 2011
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10-Q File 001-13738

10-Q filing

Filing date
06 May 2011
Reporting date
31 Mar 2011
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8-K File 001-13738

8-K filing

Filing date
05 May 2011
Reporting date
05 May 2011
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4

PRIMARY DOCUMENT

Filing date
08 Apr 2011
Reporting date
07 Apr 2011
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4

PRIMARY DOCUMENT

Filing date
08 Apr 2011
Reporting date
07 Apr 2011
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ARS File 001-13738

AUTO-GENERATED PAPER DOCUMENT

Filing date
06 Apr 2011
Reporting date
31 Dec 2010
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DEF 14A File 001-13738

DEF 14A filing

Filing date
05 Apr 2011
Reporting date
24 May 2011
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4

PRIMARY DOCUMENT

Filing date
05 Apr 2011
Reporting date
08 Dec 2010
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10-K File 001-13738

10-K filing

Filing date
25 Mar 2011
Reporting date
31 Dec 2010
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4

PRIMARY DOCUMENT

Filing date
21 Mar 2011
Reporting date
17 Mar 2011
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8-K File 001-13738

8-K filing

Filing date
02 Mar 2011
Reporting date
02 Mar 2011
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EFFECT File 033-58970

EFFECT filing

Filing date
14 Feb 2011
Reporting date
Not listed
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EFFECT File 033-45332

EFFECT filing

Filing date
14 Feb 2011
Reporting date
Not listed
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SC 13G/A File 005-39145

SCHEDULE 13G HOLDINGS REPORT AMENDMENT

Filing date
11 Feb 2011
Reporting date
Not listed
SEC evidence
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SC 13G/A File 005-39145

13G AMENDMENT

Filing date
11 Feb 2011
Reporting date
Not listed
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POS AM File 033-58970

POS AM filing

Filing date
04 Feb 2011
Reporting date
Not listed
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POS AM File 033-45332

POS AM filing

Filing date
04 Feb 2011
Reporting date
Not listed
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S-8 POS File 333-12403

S-8 POS filing

Filing date
01 Feb 2011
Reporting date
Not listed
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S-8 POS File 033-66942

S-8 POS filing

Filing date
01 Feb 2011
Reporting date
Not listed
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S-8 POS File 033-50712

S-8 POS filing

Filing date
01 Feb 2011
Reporting date
Not listed
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S-8 POS File 033-41787

S-8 POS filing

Filing date
01 Feb 2011
Reporting date
Not listed
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SC 13G File 005-39145

PMD 123110 13G

Filing date
01 Feb 2011
Reporting date
Not listed
SEC evidence
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SC 13G/A File 005-39145

SC 13G/A filing

Filing date
20 Jan 2011
Reporting date
Not listed
SEC evidence
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8-K File 001-13738

8-K filing

Filing date
30 Dec 2010
Reporting date
30 Dec 2010
SEC evidence
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