WALGREEN CO

CUSIP: 931422109 Class: COM

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q4 2013
Shares 5,720 Value ($000) $329 Avg Close — Range —
Q3 2013
Shares 45,248 Value ($000) $2,434 Avg Close — Range —
Q2 2013
Shares 50,248 Value ($000) $2,221 Avg Close — Range —
Q1 2013
Shares 57,060 Value ($000) $2,721 Avg Close — Range —
Q4 2012
Shares 75,776 Value ($000) $2,804 Avg Close — Range —
Q3 2012
Shares 90,092 Value ($000) $3,283 Avg Close — Range —
Q2 2012
Shares 95,840 Value ($000) $2,835 Avg Close — Range —
Q1 2012
Shares 40,190 Value ($000) $1,346 Avg Close — Range —
Q4 2011
Shares 85,190 Value ($000) $2,816 Avg Close — Range —
Q3 2011
Shares 75,500 Value ($000) $2,483 Avg Close — Range —
Q2 2011
Shares 45,000 Value ($000) $1,911 Avg Close — Range —
Q1 2011
Shares 45,000 Value ($000) $1,806 Avg Close — Range —
Q4 2009
Shares 34,800 Value ($000) $1,278 Avg Close — Range —