By 2007 Bungie had been fully absorbed into Microsoft. Microsoft retained the rights to Halo and held a minority stake in the "new" Bungie, LLC. I assume by 2

By 2007 Bungie had been fully absorbed into Microsoft. Microsoft retained the rights to Halo and held a minority stake in the "new" Bungie, LLC. I assume by 2007 any vesting periods were over and MS came to a mutual agreement with the Bungie shareholders to allow them to spin off.