Shares of Sirius XM (SIRI +4.3%) show a pesky gain after reports swirl around that Liberty Media...

|About: Sirius XM Holdings Inc. (SIRI)|By:, SA News Editor

Shares of Sirius XM (SIRI +4.3%) show a pesky gain after reports swirl around that Liberty Media (LMCA +1.1%) is closing in on adding to its ownership stake in the company and vying to gain "de facto" control of some Sirius' licenses and assets via an investor agreement between the firms.