WALGREEN CO

CUSIP: 931422109 Class: COM

VIKING GLOBAL INVESTORS LP's Holding History (CIK: 0001103804)

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

Q3 2014
Shares 20,711,731 Value ($000) $1,227,584 Avg Close — Range —
Q2 2014
Shares 20,137,154 Value ($000) $1,492,767 Avg Close — Range —
Q1 2014
Shares 24,105,841 Value ($000) $1,591,709 Avg Close — Range —
Q4 2013
Shares 11,604,944 Value ($000) $666,587 Avg Close — Range —