WESTERN GAS PARTNERS LP

CUSIP: 958254104 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2018
Shares 85,054 Value ($000) $3,592 Avg Close — Range —
Q1 2018
Shares 293,432 Value ($000) $12,521 Avg Close — Range —
Q4 2017
Shares 266,430 Value ($000) $12,813 Avg Close — Range —
Q3 2017
Shares 265,573 Value ($000) $13,619 Avg Close — Range —
Q2 2017
Shares 119,504 Value ($000) $6,685 Avg Close — Range —
Q1 2017
Shares 220,980 Value ($000) $13,358 Avg Close — Range —
Q4 2016
Shares 220,980 Value ($000) $12,985 Avg Close — Range —
Q3 2016
Shares 260,237 Value ($000) $14,326 Avg Close — Range —
Q2 2016
Shares 221,245 Value ($000) $11,151 Avg Close — Range —
Q1 2016
Shares 215,898 Value ($000) $9,372 Avg Close — Range —
Q4 2015
Shares 205,247 Value ($000) $9,755 Avg Close — Range —
Q3 2015
Shares 78,217 Value ($000) $3,662 Avg Close — Range —
Q2 2015
Shares 100,000 Value ($000) $6,337 Avg Close — Range —
Q1 2015
Shares 151,923 Value ($000) $10,004 Avg Close — Range —
Q4 2014
Shares 151,923 Value ($000) $11,098 Avg Close — Range —
Q4 2013
Shares 14,784 Value ($000) $912 Avg Close — Range —
Q3 2013
Shares 20,984 Value ($000) $1,262 Avg Close — Range —
Q2 2013
Shares 21,484 Value ($000) $1,394 Avg Close — Range —