U S AIRWAYS GROUP INC

CUSIP: 90341W108 Class: CMN

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q3 2013
Shares 1,829,825 Value ($000) $34,693,000 Avg Close — Range —
Q2 2013
Shares 1,887,220 Value ($000) $30,988,000 Avg Close — Range —