WESTERN REFNG INC

CUSIP: 959319104 Class: COM

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

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

Q1 2017
Shares 15,591 Value ($000) $547 Avg Close — Range —
Q4 2016
Shares 15,719 Value ($000) $595 Avg Close — Range —
Q3 2016
Shares 11,707 Value ($000) $310 Avg Close — Range —
Q2 2016
Shares 53,339 Value ($000) $1,100 Avg Close — Range —
Q1 2016
Shares 12,067 Value ($000) $351 Avg Close — Range —
Q4 2015
Shares 20,100 Value ($000) $716 Avg Close — Range —
Q3 2015
Shares 20,420 Value ($000) $901 Avg Close — Range —
Q2 2015
Shares 20,422 Value ($000) $891 Avg Close — Range —
Q1 2015
Shares 18,436 Value ($000) $911 Avg Close — Range —
Q4 2014
Shares 15,654 Value ($000) $591 Avg Close — Range —