US ECOLOGY INC

CUSIP: 91732J102 Class: CMN

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

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

Q1 2019
Shares 1,367 Value ($000) $77 Avg Close — Range —
Q3 2015
Shares 5,555 Value ($000) $242 Avg Close — Range —