The Celtics ownership group agreed to sell the team to William Chisholm, the managing director and co-founder of Symphony Technology Group, for $6.1 billion — the highest sum paid for a sports team in North American history.
The team last sold for $360 million in 2002, and the Grousbeck family (the lead investor in the ownership group) announced in June, just weeks after the Celtics won their 18th NBA title, that the team was going up for sale for estate and family planning purposes.
The previous record was established in 2023, when an ownership group led by Josh Harris bought the Washington Commanders from Dan Snyder for $6.