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 1-25 of 609 matching filings.

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25
Current page
1
S-8 POS File 033-16101

FORM S-8 POS

Filing date
19 Mar 2025
Reporting date
Not listed
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S-8 POS File 333-174531

FORM S-8 POS

Filing date
19 Mar 2025
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S-8 POS File 333-211745

FORM S-8 POS

Filing date
19 Mar 2025
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S-8 POS File 333-233238

FORM S-8 POS

Filing date
19 Mar 2025
Reporting date
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S-8 POS File 333-256467

FORM S-8 POS

Filing date
19 Mar 2025
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S-8 POS File 333-134974

FORM S-8 POS

Filing date
19 Mar 2025
Reporting date
Not listed
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S-8 POS File 333-274156

FORM S-8 POS

Filing date
19 Mar 2025
Reporting date
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15-12G File 001-13738

FORM 15-12G

Filing date
02 Jan 2025
Reporting date
Not listed
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4

OWNERSHIP DOCUMENT

Filing date
17 Dec 2024
Reporting date
13 Dec 2024
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25 File 001-13738

FORM 25

Filing date
13 Dec 2024
Reporting date
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4

OWNERSHIP DOCUMENT

Filing date
12 Dec 2024
Reporting date
10 Dec 2024
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SC 13D/A File 005-39145

SC 13D/A filing

Filing date
12 Dec 2024
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
12 Dec 2024
Reporting date
10 Dec 2024
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SC 13E3/A File 005-39145

FORM SC 13E3/A

Filing date
10 Dec 2024
Reporting date
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3

OWNERSHIP DOCUMENT

Filing date
10 Dec 2024
Reporting date
04 Dec 2024
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SC 13G/A File 005-39145

SC 13G/A

Filing date
06 Dec 2024
Reporting date
Not listed
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4

PRIMARY DOCUMENT

Filing date
05 Dec 2024
Reporting date
03 Dec 2024
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SC 13D/A File 005-39145

SC 13D/A filing

Filing date
05 Dec 2024
Reporting date
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DEFA14A File 001-13738

DEFA 14A

Filing date
18 Nov 2024
Reporting date
Not listed
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