More misinformation here.
In 2000 Activision created their own holding company “Activision Inc” under which was Activision Publishing (the arm that does the games). Activision is defined in the merger documents as “Activision Inc” (the holding company).
Then in July 2008 Activision Inc merged with Vivendi Games (a division of Vivendi). The new company was named Activision Blizzard to reflect “the significant brand recognition, employee headcount and profit contribution that Blizzard will make to the combined organization”
On July 25th 2013 Activision Blizzard announced they were buying back 429 million and million ASAC II LP, an investment vehicle led by Activision Blizzard CEO Bobby Kotick and Co-Chairman Brian Kelly, to which they have personally committed $100 million combined, separately will purchase approximately 172 million shares.
Most notably that investment group has since sold off a majority of it’s shares.