WESTERN GAS PARTNERS LP

CUSIP: 958254104 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2018
Shares 97,435 Value ($000) $4,115 Avg Close — Range —
Q3 2018
Shares 97,435 Value ($000) $4,256 Avg Close — Range —
Q2 2018
Shares 99,195 Value ($000) $4,800 Avg Close — Range —
Q1 2018
Shares 102,200 Value ($000) $4,361 Avg Close — Range —
Q4 2017
Shares 108,045 Value ($000) $5,196 Avg Close — Range —
Q3 2017
Shares 110,650 Value ($000) $5,674 Avg Close — Range —
Q2 2017
Shares 113,625 Value ($000) $6,356 Avg Close — Range —
Q1 2017
Shares 111,885 Value ($000) $6,956 Avg Close — Range —
Q4 2016
Shares 111,135 Value ($000) $6,530 Avg Close — Range —
Q3 2016
Shares 110,235 Value ($000) $6,068 Avg Close — Range —
Q2 2016
Shares 109,035 Value ($000) $5,495 Avg Close — Range —
Q1 2016
Shares 107,170 Value ($000) $4,652 Avg Close — Range —
Q4 2015
Shares 105,240 Value ($000) $5,002 Avg Close — Range —
Q3 2015
Shares 106,215 Value ($000) $4,972 Avg Close — Range —
Q2 2015
Shares 112,495 Value ($000) $7,128 Avg Close — Range —
Q1 2015
Shares 113,855 Value ($000) $7,497 Avg Close — Range —
Q4 2014
Shares 114,956 Value ($000) $8,397 Avg Close — Range —
Q3 2014
Shares 116,891 Value ($000) $8,767 Avg Close — Range —
Q2 2014
Shares 110,490 Value ($000) $8,449 Avg Close — Range —
Q1 2014
Shares 103,270 Value ($000) $6,835 Avg Close — Range —
Q4 2013
Shares 97,925 Value ($000) $6,040 Avg Close — Range —
Q3 2013
Shares 91,525 Value ($000) $5,502 Avg Close — Range —
Q2 2013
Shares 89,905 Value ($000) $5,833 Avg Close — Range —