Greg O'Brien

Greg focuses on fund reporting and analysis at Third Rock, as well as assisting in managing the day-to-day financial operations of the funds. He is enthusiastic about Third Rock’s dedication to building meaningful companies that will transform the lives of patients. Greg is continually amazed by the comradery that can be felt through all departments and functions of the firm.

Outside of the office, Greg is likely to be found either on a golf course or ski slope. Greg is most proud of his family and friends, who are always pushing him to be better.