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SANTA MONICA PARTNERS LP
> PMD
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 91,000 | -14,000 | $4.55 |
| 03/31/2023 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 105,000 | 7,000 | $5.25 |
| 12/31/2022 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 98,000 | -31,000 | $4.90 |
| 09/30/2022 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 129,000 | 2,000 | $6.45 |
| 06/30/2022 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 127,000 | -11,000 | $6.35 |
| 03/31/2022 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 138,000 | -2,000 | $6.90 |
| 12/31/2021 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 140,000 | -28,000 | $7.00 |
| 09/30/2021 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 168,000 | 29,000 | $8.40 |
| 06/30/2021 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 139,000 | 15,000 | $6.95 |
| 03/31/2021 | PSYCHEMEDICS CORP | PMD | 20,000 | 0 | 124,000 | 22,000 | $6.20 |
| 12/31/2020 | PSYCHEMEDICS CORP | PMD | 20,000 | 20,000 | 102,000 | 102,000 | $5.10 |
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