# PSYCHEMEDICS CORP (PMD)

> Institutional ownership reported to the SEC as of Q1 2025, from Form 13F filings. Source: https://holderbook.com/stocks/PMD/

- Reporting holders: 1
- Reported value: $643.2K
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [22NW, LP](https://holderbook.com/funds/1694297-22nw-lp/) | $643.2K | 276,034 | 0.4% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q1 2025 | 1 | $643.2K |
| Q4 2024 | 1 | $45.0K |
| Q3 2024 | 21 | $2.8M |
| Q2 2024 | 25 | $2.9M |
| Q1 2024 | 21 | $3.6M |
| Q4 2023 | 22 | $3.8M |
| Q3 2023 | 24 | $5.7M |
| Q2 2023 | 21 | $6.3M |
| Q1 2023 | 20 | $7.3M |
| Q4 2022 | 21 | $6.9M |
| Q3 2022 | 20 | $9.5M |
| Q2 2022 | 20 | $9.6M |