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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001037389-22-000172
Filing Date
2022-02-11
Accepted
2022-02-11 15:09:22
Documents
1

Document Format Files

Seq Description Document Type Size
1 pmd-13g_20211231.txt SC 13G/A 11711
  Complete submission text file 0001037389-22-000172.txt   13214
Mailing Address 125 NAGOG PARK ACTON MA 01720
Business Address 125 NAGOG PARK ACTON MA 01720 978-206-8220
PSYCHEMEDICS CORP (Subject) CIK: 0000806517 (see all company filings)

IRS No.: 581701987 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-39145 | Film No.: 22619971
SIC: 8071 Services-Medical Laboratories

Mailing Address 800 THIRD AVE NEW YORK NY 10022
Business Address 800 THIRD AVE NEW YORK NY 10022 2124866780
RENAISSANCE TECHNOLOGIES LLC (Filed by) CIK: 0001037389 (see all company filings)

IRS No.: 260385758 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A