PQ GROUP HLDGS INC

CUSIP: 73943T103 Class: COM

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q4 2017
Shares 73,900 Value ($000) $1,216,000 Avg Close — Range —
Q3 2017
Shares 300,000 Value ($000) $5,175,000 Avg Close — Range —