WESTERN GAS EQUITY PARTNERS

CUSIP: 95825R103 Class: CMN

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

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

Q4 2018
Shares 1,018,231 Value ($000) $28,236 Avg Close — Range —
Q3 2018
Shares 889,801 Value ($000) $26,641 Avg Close — Range —
Q2 2018
Shares 928,605 Value ($000) $33,198 Avg Close — Range —
Q1 2018
Shares 872,686 Value ($000) $28,903 Avg Close — Range —
Q4 2017
Shares 750,340 Value ($000) $27,883 Avg Close — Range —
Q3 2017
Shares 867,019 Value ($000) $35,704 Avg Close — Range —
Q2 2017
Shares 853,682 Value ($000) $36,725 Avg Close — Range —
Q1 2017
Shares 960,846 Value ($000) $44,295 Avg Close — Range —
Q4 2016
Shares 960,846 Value ($000) $40,692 Avg Close — Range —
Q3 2016
Shares 950,601 Value ($000) $40,391 Avg Close — Range —
Q2 2016
Shares 950,601 Value ($000) $36,360 Avg Close — Range —
Q1 2016
Shares 868,812 Value ($000) $30,964 Avg Close — Range —
Q4 2015
Shares 865,270 Value ($000) $31,401 Avg Close — Range —
Q3 2015
Shares 874,120 Value ($000) $34,467 Avg Close — Range —
Q2 2015
Shares 842,590 Value ($000) $50,555 Avg Close — Range —
Q1 2015
Shares 787,096 Value ($000) $47,226 Avg Close — Range —
Q4 2014
Shares 787,096 Value ($000) $47,407 Avg Close — Range —
Q3 2014
Shares 787,096 Value ($000) $47,966 Avg Close — Range —
Q2 2014
Shares 609,735 Value ($000) $38,230 Avg Close — Range —
Q1 2014
Shares 609,735 Value ($000) $29,944 Avg Close — Range —
Q4 2013
Shares 674,831 Value ($000) $26,663 Avg Close — Range —
Q3 2013
Shares 675,259 Value ($000) $25,113 Avg Close — Range —
Q2 2013
Shares 675,759 Value ($000) $27,821 Avg Close — Range —