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Boston Celtics sold to Mass. native for $6.1 billion, reports say

The Boston Celtics have reportedly been sold to a Massachusetts native and New England college graduate for a record-breaking figure.

William Chisholm, co-founder of the Symphony Technology Group, has agreed to purchase a majority share of the team from the Grousbeck family, according to several reports.

Chisholm grew up in Georgetown, Massachusetts, and graduated from Dartmouth College in Hanover, New Hampshire.

According to NBA insider Shams Charania, the deal is for a valuation of $6.1 billion, the largest sale of a franchise in the big four North American sports.

BREAKING: Bill Chisholm, managing partner at Symphony Technology Group, has agreed to purchase the Boston Celtics from the Grousbeck family for a valuation for $6.1 billion, sources tell ESPN. This now is the largest sale for a sports franchise in North America. pic.twitter.com/iPphqSQswe

— Shams Charania (@ShamsCharania) March 20, 2025

Last year, the majority ownership group of the Celtics, led by Wyc Grousbeck, announced plans to sell the team, just days after Boston held a rolling rally in celebration of the franchise’s long-awaited Banner 18.

He led the group that bought the Celtics for $360 million in 2002. The team is now worth $4.7 billion, according to Forbes.

Celtics co-owner Wyc Grousbeck has said he expects to remain governor through the ownership transition.

When the Celtics sale was announced last July, the Grousbeck family said it intended to sell 51 percent of the team in late 2024 or early 2025.

Celtics minority owner Steve Pagluica, one of the four reported finalists to purchase the Grousebeck family’s share, said in a statement on social media that he was proud of the bid his group put forth.

“I want to thank all of the players and fans over these many years that have supported us in rebuilding the team and winning two championships. We couldn’t have done any of this without you. As the grandson of Italian immigrants who came to America with only their willingness to work hard to be part of the American dream, I am thankful that I have been able to be part of the Celtics history and legacy, and I will be forever grateful for all the memories along the way,” Pagluica stated. “As Red Auerbach said, ‘the Celtics are not just a basketball team, but a way of life’ and my family and I will continue to be lifelong fans and cherish the honor of being part of the organization for so many years. I will never stop being a Celtic, and if the announced transaction does not end up being finalized, my partners and I are ready to check back into the game and bring it home, to help continue what the Celtics do best- win.”