William chisholm

Symphony Technology Group: Boston Celtics, the reigning NBA champions, have reached an agreement for a USD 6.1 billion sale to a group led by William Chisholm, co-founder of private equity firm Symphony Technology Group, the team announced on Thursday.

The deal, which still requires approval from the NBA Board of Governors, would set a new record for the highest-priced sports team purchase in North America, surpassing the USD 6.05 billion paid for the NFL’s Washington Commanders in 2023.

"Bill is a terrific person and a true Celtics fan, born and raised here in the Boston area. His love for the team and the city of Boston, along with his chemistry with the rest of the Celtics leadership, make him a natural choice to be the next Governor and controlling owner of the team," Celtics majority owner Wyc Grousbeck said in a statement.