# PSYCHEMEDICS CORP — DEF 14A

PSYCHEMEDICS CORP of ACTON, MA filed a DEF 14A with the SEC on 2004-04-09. Industry: Services-Medical Laboratories.

## Filing

- Filed: 2004-04-09
- Form: DEF 14A
- Accession: 0000950135-04-001800
- Registrant: PSYCHEMEDICS CORP
- CIK: 0000806517
- Industry (SIC): Services-Medical Laboratories (8071)
- State of incorporation: DE
- Location: ACTON, MA

## Documents (5)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEF 14A | PSYCHEMEDICS CORPORATION |
| 3 | GRAPHIC | GRAPHIC |
| 4 | GRAPHIC | GRAPHIC |
| 5 | GRAPHIC | GRAPHIC |
| 6 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (46)

_Showing 12 of 46 filings._

| Filed | Form |
| --- | --- |
| [2024-12-10](https://search.stillhousedata.com/proxy/0001171843-24-006864) | SC 13E3/A |
| [2024-11-18](https://search.stillhousedata.com/proxy/0001171843-24-006411) | DEFA14A |
| [2024-10-18](https://search.stillhousedata.com/proxy/0001171843-24-005691) | SC 13E3/A |
| [2024-10-18](https://search.stillhousedata.com/proxy/0001171843-24-005690) | DEF 14A |
| [2024-10-16](https://search.stillhousedata.com/proxy/0001171843-24-005649) | SC 13E3/A |
| [2024-10-16](https://search.stillhousedata.com/proxy/0001171843-24-005647) | PRER14A |
| [2024-10-04](https://search.stillhousedata.com/proxy/0001171843-24-005522) | SC 13E3/A |
| [2024-10-04](https://search.stillhousedata.com/proxy/0001171843-24-005520) | PRER14A |
| [2024-09-03](https://search.stillhousedata.com/proxy/0001171843-24-005038) | SC 13E3 |
| [2024-09-03](https://search.stillhousedata.com/proxy/0001171843-24-005036) | PRE 14A |
| [2024-08-12](https://search.stillhousedata.com/proxy/0001171843-24-004697) | DEFA14A |
| [2023-07-21](https://search.stillhousedata.com/proxy/0001171843-23-004595) | DEF 14A |

## More

- [CIK 806517 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=806517&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0000950135-04-001800.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.