WALGREEN CO

CUSIP: 931422109 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q3 2014
Shares 1,775,585 Value ($000) $105,239 Avg Close — Range —
Q2 2014
Shares 1,747,059 Value ($000) $129,509 Avg Close — Range —
Q1 2014
Shares 1,723,559 Value ($000) $113,807 Avg Close — Range —
Q4 2013
Shares 1,715,459 Value ($000) $98,536 Avg Close — Range —
Q3 2013
Shares 1,703,659 Value ($000) $91,657 Avg Close — Range —
Q2 2013
Shares 1,651,065 Value ($000) $72,977 Avg Close — Range —
Q1 2013
Shares 1,499,868 Value ($000) $71,514 Avg Close — Range —