Sirius XM approached Pandora board about acquisition (P, SIRI)

SiriusXM Chairman Greg Maffei has recently reached out to the board of internet radio provider Pandora about a possible acquisition, according to a Bloomberg report.
Pandora's stock surged more than 16% on Friday following the report, which was based on anonymous sources.
Earlier on Friday, CNBC reported that Pandora was "open" to selling itself.
Bloomberg said that Sirius did not discuss a price for the deal and that Pandora still has not yet responded. 
Sirius offered about $15