US ECOLOGY INC

CUSIP: 91734M103 Class: COMMON STOCK

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q1 2022
Shares 74,600 Value ($000) $3,572 Avg Close — Range —
Q4 2021
Shares 69,500 Value ($000) $2,220 Avg Close — Range —
Q3 2021
Shares 69,500 Value ($000) $2,248 Avg Close — Range —
Q2 2021
Shares 69,500 Value ($000) $2,608 Avg Close — Range —
Q1 2021
Shares 64,800 Value ($000) $2,698 Avg Close — Range —
Q4 2020
Shares 64,300 Value ($000) $2,336 Avg Close — Range —
Q3 2020
Shares 64,300 Value ($000) $2,101 Avg Close — Range —
Q2 2020
Shares 63,200 Value ($000) $2,141 Avg Close — Range —
Q1 2020
Shares 51,800 Value ($000) $1,575 Avg Close — Range —
Q4 2019
Shares 47,700 Value ($000) $2,762 Avg Close — Range —