U S AIRWAYS GROUP INC

CUSIP: 90341W108 Class: CMN

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

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

Q3 2013
Shares 345,280 Value ($000) $6,547 Avg Close — Range —
Q2 2013
Shares 285,371 Value ($000) $4,686 Avg Close — Range —
Q1 2013
Shares 282,230 Value ($000) $4,789 Avg Close — Range —