Former Disney and TikTok executive Kevin Mayer is exploring a deal to roll up several independent media and entertainment companies,including Scooter Braun’s Ithaca Holdings and Ben Silverman’s Propagate Content,sources with knowledge of the talks tell The Hollywood Reporter. Blackstone is financing the venture and is expected to invest a minimum of $2 billion as part of an expansion of its media and entertainment holdings, says a knowledgeable source.