CRO Parexel changes private equity hands again, this time for $8.5B July 2, 2021 Auto Bot BioPharma, biopharma nl, deals, Durham, investing, Massachusetts, North Carolina, Pharma 0 Four years after a private equity acquisition took Parexel private, the contract research organization is being acquired by two private equity firms for $8.5 billion. It’s the latest in a series of acquisitions to hit the CRO sector this year.