US ECOLOGY INC

CUSIP: 91732J102 Class: CMN

BOKF, NA's Holding History (CIK: 0000009634)

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

Q3 2017
Shares 3,905 Value ($000) $210 Avg Close — Range —
Q2 2015
Shares 3,128 Value ($000) $152 Avg Close — Range —
Q1 2015
Shares 3,178 Value ($000) $159 Avg Close — Range —
Q3 2014
Shares 5,251 Value ($000) $245 Avg Close — Range —
Q2 2014
Shares 12,939 Value ($000) $633 Avg Close — Range —
Q1 2014
Shares 11,786 Value ($000) $437 Avg Close — Range —