William Chisholm

$3.18B

as of 10/09/26

About William Chisholm

William "Bill" Chisholm, a private equity executive, is leading a group of investors to buy the Boston Celtics NBA team for $6.1 billion.

Chisholm is the managing partner of STG Partners, a software-focused Silicon Valley private equity firm with about $12 billion in assets under management.

He cofounded Symphony Technology Group, the predecessor to STG, in 2002 with software billionaire Romesh Wadhwani.

Chisholm has worked in Silicon Valley for decades but grew up near Boston and has been a lifelong Celtics fan.

The Celtics' current CEO and governor, Wyc Grousbeck, will stay in his roles through the 2027-2028 season.

Personal stats

Citizenship

United States of America

Source of wealth

Private equity

Residence

Atherton, California

Marital status

Married

Birth date

01/01/69 (age 57)

Number of children

Education

Bachelor of Arts/Science, Dartmouth College; Master of Business Administration, The Wharton School at the University of Pennsylvania

Self-made

self-made