William Chisholm finalizes deal to take control of 18x NBA Champion Boston Celtics

Last summer, after winning their 18th NBA Championship, the Boston Celtics were put up on the market for sale. The sale was finalized on Tuesday, August 19 and William (Bill) Chisholm, the private equity mogul, will be taking immediate charge.

After more than 2 decades, the franchise will change hands, having been led by Wyc Grousbeck and his team until now. But rest easy, Grousbeck isn't going anywhere, and will still be a part of the Celtics going forward.

Bill Chisholm takes charge of Boston Celtics

After winning the bid in March 2025, Bill Chisholm's investor group are now the new majority owners of the Boston Celtics. The franchise was valued at more than $6.1 billion - a record price for an American professional sports team.

Last week, the deal was approved unanimously by the NBA, and on August 19, the deal was finalized between the two parties.

After the deal was done, an official announcement was made by the NBA as well the Boston Celtics office. According to the announcement, Chisholm will serve as Governor, and Wyc Grousbeck and Aditya Mittal will serve as Alternate Governors."Following unanimous approval from the NBA Board of Governors, an investor group led by William Chisholm has completed the acquisition of a majority control position in the 18-time NBA Champion Boston Celtics."

Wyc Grousbeck will be staying with the franchise as the Co-Owner and CEO, running day to day operations alongside Chisholm. Members of the Managing Board of the Boston Celtics include Grousbeck, Mittal, Bruce Beal, Andrew Bialecki, Dom Ferrante, Rob Hale, Mario Ho, and Ian Loring, and Global investment firm Sixth Street is also said to be a major participant in the investment group.

Bill Chisholm is a lifelong fan of Boston Celtics

Bill Chisholm is a born-and-raised Bostonian, and has been a fan of the Boston Celtics team for ages. So, in a way, becoming the majority owner of the franchise is a dream come true for him. During the announcement, the equity mogul said:“This truly is a dream come true for me and my family. I feel so fortunate to be here as part of this new investor group, who are accomplished, driven people who care deeply about the Celtics and the Boston community.

On behalf of our group I am thrilled to partner with Wyc, Brad Stevens and Rich Gotham to move this outstanding organization forward. We are committed to building on the legacy of the Celtics and raising banners, and I can’t wait for the team to get back out there this fall.

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Wyc Grousbeck, who has been a part of the Celtics for the last 20 years, also added his thoughts on the deal getting finalized, saying:“The Celtics have been my life’s work for the past 23 years. This incredible ride is now continuing. I am fired up to be shoulder to shoulder with Bill as we pull every lever to go after another banner. There is nothing better than winning.”The Celtics will be looking to win their 19th NBA championship next season, being one of the most decorated teams in the league. And with this new leadership, fans are excited to see where it leads to.Also Read: Jayson Tatum’s Boston Celtics get stamp of approval for $6.1 billion sale from NBA’s Board of Governors