WEST CORP

CUSIP: 952355204 Class: COM

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q3 2017
Shares 13,050 Value ($000) $306 Avg Close — Range —
Q1 2017
Shares 8,685 Value ($000) $212 Avg Close — Range —
Q4 2016
Shares 12,999 Value ($000) $322 Avg Close — Range —