PSYCHEMEDICS CORP

CUSIP: 744375205 Class: COM NEW

ALGERT GLOBAL LLC's Holding History (CIK: 0001275218)

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

Q4 2017
Shares 10,384 Value ($000) $213 Avg Close — Range —
Q2 2017
Shares 54,761 Value ($000) $1,366 Avg Close — Range —
Q1 2017
Shares 53,411 Value ($000) $1,071 Avg Close — Range —
Q4 2016
Shares 20,049 Value ($000) $495 Avg Close — Range —
Q3 2016
Shares 10,334 Value ($000) $205 Avg Close — Range —