SIRIUS XM RADIO INC

CUSIP: 82967N108 Class: COM

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

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

Q3 2013
Shares 16,585,893 Value ($000) $64,187 Avg Close — Range —
Q2 2013
Shares 17,550,004 Value ($000) $58,793 Avg Close — Range —