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 176-200 of 609 matching filings.

Per page
25
Current page
8
4

PRIMARY DOCUMENT

Filing date
18 Mar 2021
Reporting date
16 Mar 2021
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3

PRIMARY DOCUMENT

Filing date
18 Mar 2021
Reporting date
16 Mar 2021
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8-K File 001-13738

FORM 8-K

Filing date
17 Mar 2021
Reporting date
16 Mar 2021
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SC 13G/A File 005-39145

AMENDED 13G FOR PSYCHEMEDICS CORPORATION

Filing date
16 Feb 2021
Reporting date
Not listed
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SC 13G/A File 005-39145

SC 13G/A filing

Filing date
12 Feb 2021
Reporting date
Not listed
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SC 13G/A File 005-39145

SC 13G/A filing

Filing date
11 Feb 2021
Reporting date
Not listed
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SC 13G File 005-39145

FORM SC 13G

Filing date
02 Feb 2021
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
28 Jan 2021
Reporting date
25 Jan 2021
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3

PRIMARY DOCUMENT

Filing date
28 Jan 2021
Reporting date
25 Jan 2021
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8-K File 001-13738

FORM 8-K

Filing date
27 Jan 2021
Reporting date
21 Jan 2021
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SC 13D File 005-39145

SC 13D filing

Filing date
30 Dec 2020
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
11 Dec 2020
Reporting date
11 Dec 2020
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4

PRIMARY DOCUMENT

Filing date
08 Dec 2020
Reporting date
08 Dec 2020
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4

PRIMARY DOCUMENT

Filing date
20 Nov 2020
Reporting date
18 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
17 Nov 2020
Reporting date
13 Nov 2020
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8-K File 001-13738

FORM 8-K

Filing date
16 Nov 2020
Reporting date
16 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
13 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
11 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
11 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
11 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
11 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
11 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
11 Nov 2020
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4

PRIMARY DOCUMENT

Filing date
13 Nov 2020
Reporting date
11 Nov 2020
SEC evidence
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4

PRIMARY DOCUMENT

Filing date
12 Nov 2020
Reporting date
12 Nov 2020
SEC evidence
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