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 151-175 of 609 matching filings.

Per page
25
Current page
7
4

PRIMARY DOCUMENT

Filing date
16 Nov 2021
Reporting date
12 Nov 2021
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SC 13D/A File 005-39145

AMENDMENT NO. 2 TO THE SCHEDULE 13D

Filing date
23 Sep 2021
Reporting date
Not listed
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SC 13D/A File 005-39145

AMENDMENT NO. 1 TO THE SCHEDULE 13D

Filing date
19 Aug 2021
Reporting date
Not listed
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8-K File 001-13738

FORM 8-K

Filing date
10 Aug 2021
Reporting date
10 Aug 2021
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8-K File 001-13738

FORM 8-K

Filing date
20 Jul 2021
Reporting date
15 Jul 2021
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S-8 File 333-256467

FORM S-8

Filing date
25 May 2021
Reporting date
Not listed
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8-K File 001-13738

FORM 8-K

Filing date
17 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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4

PRIMARY DOCUMENT

Filing date
14 May 2021
Reporting date
13 May 2021
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8-K File 001-13738

FORM 8-K

Filing date
10 May 2021
Reporting date
10 May 2021
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10-K/A File 001-13738

FORM 10-K/A

Filing date
09 Apr 2021
Reporting date
31 Dec 2020
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DEF 14A File 001-13738

DEF 14A

Filing date
06 Apr 2021
Reporting date
13 May 2021
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8-K File 001-13738

FORM 8-K

Filing date
23 Mar 2021
Reporting date
19 Mar 2021
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