WEST CORP

CUSIP: 952355204 Class: COM

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2014
Shares 17,300 Value ($000) $571 Avg Close — Range —
Q3 2014
Shares 11,400 Value ($000) $336 Avg Close — Range —