Billionaire hedge funder Ken Griffin closed on his purchase of Mana Wynwood for $1.1 billion, an all-cash deal that has been in the works for roughly three years.

Investor and developer Moishe Mana sold the property, Mana confirmed to The Real Deal in a sit-down interview.

Griffin and Carnegie Mellon University announced plans to open a satellite campus on a 35-acre site in the Miami neighborhood, as part of a $3 billion gift Griffin made to the university. The Pittsburgh, Pennsylvania-based university is top-ranked for its artificial intelligence, computer science, engineering and robotics programs. Griffin’s contribution marks the largest single donation to higher education in the U.S.