SIRIUS XM RADIO INC

CUSIP: 82967N108 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2013
Shares 72,589,092 Value ($000) $280,920 Avg Close — Range —
Q2 2013
Shares 71,211,196 Value ($000) $238,558 Avg Close — Range —