Massachusetts native Chisholm is the managing partner and co-founder of Symphony Technology Group, based out of California

William “Bill” Chisholm, managing partner at California’s Symphony Technology Group, a private equity firm, has agreed to purchase the Boston Celtics for a record-breaking $6.1 billion, a league source confirmed to multiple outlets.

Bill Chisholm, cofounder of STG, paid $6.1 billion for the storied Boston Celtics, the most ever paid for a North American sports team.