SiriusXM Adds 1.7 Million Subscribers in 2011

SiriusXM Adds 1.7 Million Subscribers in 2011: Sirius XM says it ended 2011 with nearly 21.9 million subscribers, reporting approximately 540,000 net new subscribers in the fourth quarter and approximately 1,700,000 for the full year 2011. The company reiterated its existing financial guidance for 2011 and 2012 and expects to announce 2012 subscriber guidance and complete 2011 results in February.