PQ GROUP HLDGS INC

CUSIP: 73943T103 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q3 2020
Shares 88,109 Value ($000) $904 Avg Close — Range —
Q1 2020
Shares 26,391 Value ($000) $288 Avg Close — Range —
Q3 2019
Shares 1,517 Value ($000) $24 Avg Close — Range —