Who is Bill Chisholm, the new majority owner of the Boston Celtics?

The Boston Celtics sold Thursday for a record $6.1 billion valuation, the most-ever for a North American sports franchise.

The move presents a changing of the guard after the Grousbeck family, the current majority owners, led the team to a period of sustained success, including last season's NBA championship.

William Chisholm, a managing partner of the private equity firm Symphony Technology Group, is the leading investor in the group set to make the purchase, pending approval by the NBA board of governors. Current Celtics minority owner and business executive Rob Hale, Bruce A. Beal Jr., president of Related Companies, and Sixth Street, a global investment firm, are among the other investors in the group.

Here's everything you need to know about Bill Chisholm:

Who is Bill Chisholm?

Bill Chisholm is the co-founder of Symphony Technology Group (STG), a private equity firm based in Menlo Park, California. He serves as the group's chief investment officer and managing partner, overseeing the firm's investment strategies. STG is known primarily for its investments in the tech and software sectors.

In March 2023, Chisholm and STG raised $4.2 billion after the firm closed its largest fund.

Before his time at STG, Chisholm co-founded The Valent Group, and he also worked at Bain & Company and the former PaineWebber, Inc.

Chisholm earned a bachelor of arts from Dartmouth College before getting a master's of business administration with distinction from the Wharton School.

Chisholm and his wife, Kim, graduated from Dartmouth in 1991; Bill played on the men's soccer team from 1988-91. Their son, Will, also went to Dartmouth and also played on the men's soccer team, from 2016-19.