US ECOLOGY INC

CUSIP: 91734M103 Class: COMMON STOCK

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q1 2022
Shares 10,154 Value ($000) $486 Avg Close — Range —
Q4 2021
Shares 1,834,267 Value ($000) $58,587 Avg Close — Range —
Q3 2021
Shares 711,253 Value ($000) $23,008 Avg Close — Range —
Q2 2021
Shares 13,535 Value ($000) $509 Avg Close — Range —
Q4 2020
Shares 8,842 Value ($000) $321 Avg Close — Range —
Q2 2020
Shares 11,777 Value ($000) $399 Avg Close — Range —