The sale of the Boston Celtics to Bill Chisholm at a valuation of more than $6.1 billion has been unanimously approved by the NBA board of governors. The transaction will be closed shortly with Chisholm taking an ownership stake of at least 51 percent of the Celtics. Chisholm will have full control by 2028 at a price that could bring the total valuation to $7.3 billion. 

Chisholm is the managing partner of California-based Symphony Technology Group. 

Wyc Grousbeck led the ownership group that bought the team in 2002 for $360 million. The Celtics won the championship in 2008 and 2024 under Grousbeck's ownership tenure.