SIRIUS XM RADIO INC

CUSIP: 82967N108 Class: COM

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q4 2012
Shares 56,622 Value ($000) $164 Avg Close — Range —
Q3 2012
Shares 54,972 Value ($000) $142 Avg Close — Range —
Q2 2012
Shares 55,547 Value ($000) $103 Avg Close — Range —
Q1 2012
Shares 55,547 Value ($000) $128 Avg Close — Range —