Howard Stern's Company Sues SiriusXM Radio | TMZ.com According to the suit, filed in New York and obtained by TMZ, Sirius courted Howard to come there in the first place by promising him a share "in any success that the company achieved." But the suit claims, once Sirius conquered its chief competitor -- XM -- and acquired more than 20 million subscribers, it decided on its own Howard had been paid enough. The suit claims, "Sirius needed Stern more than Stern needed Sirius." The suit seeks unspecified damages. Calls to Sirius were not returned. I'm surprised Langford didn't cover this but instead chose to cover Captain Janks for 500th time.