Facebook announced that it has reached a definitive agreement to acquire Oculus VR, Inc., the leader in immersive virtual reality technology, for a total of approximately $2 billion. This includes $400 million in cash and 23.1 million shares of Facebook common stock (valued at $1.6 billion based on the average closing price of the 20 trading days preceding March 21, 2014 of $69.35 per share). The agreement also provides for an additional $300 million earn-out in cash and stock based on the achievement of certain milestones.