THISTLE WILLIAM R 4
4 · PSYCHEMEDICS CORP · Filed May 13, 2009
Insider Transaction Report
Form 4
THISTLE WILLIAM R
Sr. VP and Gen. Counsel
Transactions
- Tax Payment
Common Stock, $.005 Par Value
2009-05-11$6.41/sh−865$5,545→ 8,866 total
4 · PSYCHEMEDICS CORP · Filed May 13, 2009
Common Stock, $.005 Par Value