Complex sentence: In March 2008, Blackstone acquired GSO the credit-oriented alternative asset manager for $620 million in cash and stock and up to $310 million through an earnout over the next five years based on certain earnings targets.
Split into simpler sentences: In March 2008, Blackstone acquired GSO for $620 million in cash and stock. The GSO team also received an earnout worth up to $310 million through payable over the subsequent five years, based on certain earnings targets.