New owner William Chisholm's investor group will lead the team and former owner Wyc Grousbeck will serve as team CEO.

An investor group led by William Chisholm closed on its acquisition of a majority control position in the Boston Celtics. Chisholm will serve as governor of the franchise, while Wyc Grousbeck and Aditya Mittal will be alternate governors.

The Boston Celtics, the only team in NBA history with 18 championship trophies, have a new ownership group. William Chisholm's investment group took control of the storied franchise on Tuesday morning,