PSYCHEMEDICS CORP

CUSIP: 744375205 Class: COM NEW

PERCEPTIVE ADVISORS LLC's Holding History (CIK: 0001224962)

Note: Option positions (PUT/CALL) are excluded.

Q4 2016
Shares 6,626 Value ($000) $164 Avg Close — Range —
Q3 2016
Shares 12,626 Value ($000) $250 Avg Close — Range —