SEC Seal
SEC Banner
EDGAR USA Search
EDGAR Search Results
Mailing Address 125 NAGOG PARK ACTON MA 01720
Business Address 125 NAGOG PARK ACTON MA 01720 978-206-8220
PSYCHEMEDICS CORP CIK#: 0000806517 (see all company filings)

SIC: 8071 - SERVICES-MEDICAL LABORATORIES
State location: MA | State of Inc.: DE | Fiscal Year End: 1231
(CF Office: 08 Industrial Applications and Services)
Get insider transactions for this issuer.

Filter Results
Search Within Files

(YYYYMMDD)
Ownership?


Enter keywords
Items 1 - 40  0000806517 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001171843-24-001671 (34 Act)  Size: 6 MB
2024-03-28 001-13738
24793699
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-24-001669 (34 Act)  Size: 234 KB
2024-03-28 001-13738
24793653
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001037389-24-000016 (34 Act)  Size: 13 KB
2024-02-13 005-39145
24623005
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001171843-24-000556 (34 Act)  Size: 35 KB
2024-02-02 005-39145
24591322
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-24-000431 (34 Act)  Size: 237 KB
2024-01-26 001-13738
24567837
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-23-125950 (34 Act)  Size: 63 KB
2023-12-14 005-39145
231486375
8-K  Documents   Interactive Data Current report, items 5.02, 7.01, and 9.01
Acc-no: 0001171843-23-007278 (34 Act)  Size: 311 KB
2023-11-27 001-13738
231438880
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-23-007042 (34 Act)  Size: 3 MB
2023-11-13 001-13738
231400062
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-23-006962 (34 Act)  Size: 297 KB
2023-11-09 001-13738
231393550
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-23-006872 (34 Act)  Size: 188 KB
2023-11-08 001-13738
231389046
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-23-005839 (34 Act)  Size: 188 KB
2023-09-22 001-13738
231271050
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-23-005514 (34 Act)  Size: 188 KB
2023-08-31 001-13738
231229569
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001171843-23-005395 (33 Act)  Size: 84 KB
2023-08-22 333-274156
231194401
8-K  Documents   Interactive Data Current report, items 5.02, 5.07, 8.01, and 9.01
Acc-no: 0001171843-23-005387 (34 Act)  Size: 324 KB
2023-08-21 001-13738
231189859
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-23-005301 (34 Act)  Size: 3 MB
2023-08-14 001-13738
231171809
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-23-005273 (34 Act)  Size: 295 KB
2023-08-11 001-13738
231165145
8-K  Documents   Interactive Data Current report, items 1.01 and 9.01
Acc-no: 0001171843-23-004597 (34 Act)  Size: 262 KB
2023-07-21 001-13738
231103059
ARS  Documents Annual Report to Security Holders
Acc-no: 0001171843-23-004596 (34 Act)  Size: 809 KB
2023-07-21 001-13738
231102687
DEF 14A  Documents Other definitive proxy statements
Acc-no: 0001171843-23-004595 (34 Act)  Size: 498 KB
2023-07-21 001-13738
231102533
8-K  Documents   Interactive Data Current report, items 5.02 and 9.01
Acc-no: 0001171843-23-004498 (34 Act)  Size: 294 KB
2023-07-14 001-13738
231088141
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-23-003231 (34 Act)  Size: 3 MB
2023-05-11 001-13738
23912217
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-23-003111 (34 Act)  Size: 281 KB
2023-05-09 001-13738
23903535
10-K/A  Documents   Interactive Data [Amend] Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001171843-23-002005 (34 Act)  Size: 422 KB
2023-03-30 001-13738
23781764
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001171843-23-001908 (34 Act)  Size: 6 MB
2023-03-27 001-13738
23761754
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-23-001806 (34 Act)  Size: 297 KB
2023-03-21 001-13738
23750475
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-23-001033 (34 Act)  Size: 199 KB
2023-02-16 001-13738
23639242
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001171843-23-000966 (34 Act)  Size: 36 KB
2023-02-14 005-39145
23631174
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001037389-23-000039 (34 Act)  Size: 13 KB
2023-02-13 005-39145
23615677
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-22-008275 (34 Act)  Size: 192 KB
2022-12-30 001-13738
221502288
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-22-007389 (34 Act)  Size: 3 MB
2022-11-10 001-13738
221378724
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-22-007301 (34 Act)  Size: 304 KB
2022-11-09 001-13738
221373536
8-K  Documents   Interactive Data Current report, item 5.07
Acc-no: 0001171843-22-005702 (34 Act)  Size: 202 KB
2022-08-17 001-13738
221174963
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-22-005576 (34 Act)  Size: 3 MB
2022-08-10 001-13738
221152765
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-22-005542 (34 Act)  Size: 303 KB
2022-08-09 001-13738
221149425
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-22-004980 (34 Act)  Size: 191 KB
2022-07-25 001-13738
221104113
DEF 14A  Documents Other definitive proxy statements
Acc-no: 0001171843-22-004738 (34 Act)  Size: 8 MB
2022-07-06 001-13738
221067930
SC 13D/A  Documents [Amend] General statement of acquisition of beneficial ownership
Acc-no: 0000921895-22-001950 (34 Act)  Size: 125 KB
2022-06-10 005-39145
221008638
8-K  Documents   Interactive Data Current report, items 1.01, 5.02, and 9.01
Acc-no: 0001171843-22-004265 (34 Act)  Size: 332 KB
2022-06-09 001-13738
221006702
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-22-003580 (34 Act)  Size: 2 MB
2022-05-11 001-13738
22914716
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-22-003516 (34 Act)  Size: 287 KB
2022-05-10 001-13738
22911008