Shares of Sirius XM Holdings Inc. climbed toward a two-month high Tuesday after Berkshire Hathaway Inc. disclosed that it boosted its stake in the satellite-radio company to more than 35%.

Short interest in Sirius XM Holdings Inc (NASDAQ:SIRI) increased during the last reporting period, rising from 18.78M to 19.32M. This put 5.85% of the company's publicly available shares short.

The renowned deejay, who put New Wave on the map in Southern California, talks about his life and career as documented the ...