U S AIRWAYS GROUP INC

CUSIP: 90341W108 Class: CMN

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

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

Q3 2013
Shares 2,722,200 Value ($000) $51,613 Avg Close — Range —
Q2 2013
Shares 1,567,000 Value ($000) $25,730 Avg Close — Range —