SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001062993-23-011265
Filing Date
2023-05-16
Accepted
2023-05-16 18:18:30
Documents
1
Period of Report
2023-05-15

Document Format Files

Seq Description Document Type Size
1 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES form4.html 4  
1 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES form4.xml 4 3211
  Complete submission text file 0001062993-23-011265.txt   4583
Mailing Address 125 NAGOG PARK ACTON MA 01720
Business Address 125 NAGOG PARK ACTON MA 01720 978-206-8220
PSYCHEMEDICS CORP (Issuer) CIK: 0000806517 (see all company filings)

IRS No.: 581701987 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 8071 Services-Medical Laboratories

Mailing Address C/O PAYCHEMEDICS CORP 1280 MASSACHUSETTS AVE STE 200 CAMBRIDGE MA 02138
Business Address
SCHAFFER MICHAEL I (Reporting) CIK: 0001250730 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13738 | Film No.: 23929103