PSYCHEMEDICS CORP

CUSIP: 744375205 Class: COM NEW

OXFORD ASSET MANAGEMENT LLP's Holding History (CIK: 0001438284)

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

Q4 2017
Shares 10,488 Value ($000) $216 Avg Close — Range —
Q3 2017
Shares 28,504 Value ($000) $522 Avg Close — Range —
Q1 2017
Shares 17,700 Value ($000) $355 Avg Close — Range —