SIRIUS XM RADIO INC

CUSIP: 82967N108 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q3 2013
Shares 181,260 Value ($000) $702 Avg Close — Range —
Q2 2013
Shares 86,260 Value ($000) $288 Avg Close — Range —