WESTERN GAS PARTNERS LP

CUSIP: 958254104 Class: COM

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

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

Q1 2018
Shares 32,250 Value ($000) $1,376 Avg Close — Range —
Q3 2017
Shares 19,300 Value ($000) $990 Avg Close — Range —
Q4 2016
Shares 35,303 Value ($000) $2,074 Avg Close — Range —
Q3 2016
Shares 79,970 Value ($000) $4,402 Avg Close — Range —
Q1 2016
Shares 29,676 Value ($000) $1,288 Avg Close — Range —
Q1 2015
Shares 91,350 Value ($000) $6,015 Avg Close — Range —
Q4 2014
Shares 91,350 Value ($000) $6,673 Avg Close — Range —
Q3 2014
Shares 69,124 Value ($000) $5,184 Avg Close — Range —
Q2 2014
Shares 95,602 Value ($000) $7,312 Avg Close — Range —
Q1 2014
Shares 88,832 Value ($000) $5,880 Avg Close — Range —
Q4 2013
Shares 117,716 Value ($000) $7,262 Avg Close — Range —
Q3 2013
Shares 95,683 Value ($000) $5,753 Avg Close — Range —
Q2 2013
Shares 163,179 Value ($000) $10,589 Avg Close — Range —