US ECOLOGY INC

CUSIP: 91734M103 Class: COMMON STOCK

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2022
Shares 100 Value ($000) $5 Avg Close — Range —
Q2 2021
Shares 1,677 Value ($000) $63 Avg Close — Range —