WALGREEN CO

CUSIP: 931422109 Class: COM

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

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

Q3 2014
Shares 161,397 Value ($000) $9,566 Avg Close — Range —
Q2 2014
Shares 160,805 Value ($000) $11,920 Avg Close — Range —
Q1 2014
Shares 167,480 Value ($000) $11,059 Avg Close — Range —
Q4 2013
Shares 166,221 Value ($000) $9,548 Avg Close — Range —
Q3 2013
Shares 177,558 Value ($000) $9,553 Avg Close — Range —
Q2 2013
Shares 175,565 Value ($000) $7,760 Avg Close — Range —