Bill & Melinda Gates Foundation Trust
Holding/activity history for Psychemedics Corp. (PMD)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2007 Q4 | 0 | 0 | Sell 100.00% | 0.04 | |
| 2007 Q3 | 222,700 | 0.04 | Buy | 0.04 | $17.35 |
Bill & Melinda Gates Foundation Trust
Holding/activity history for Psychemedics Corp. (PMD)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2007 Q4 | 0 | 0 | Sell 100.00% | 0.04 | |
| 2007 Q3 | 222,700 | 0.04 | Buy | 0.04 | $17.35 |