The Boston Celtics have made history with their recent sale for a staggering $6.1 billion, marking the largest sports franchise sale in U.S. history. This monumental transaction, announced on March 20, 2025, underscores the soaring value of NBA teams and the increasing influence of private equity in professional sports.
The Celtics, one of the NBA’s most iconic franchises, were purchased by a private equity-led consortium. The group is spearheaded by Bill Chisholm, managing partner at Symphony Technology Group, and Sixth Street, a prominent investment firm. The deal also includes backing from billionaire Robert Hale, founder of Granite Telecommunications, and Bruce Beal Jr., president of Related Companies. This high-profile ownership group reflects a growing trend of deep-pocketed investors entering the sports industry.
The sale concludes the Grousbeck family’s 23-year ownership of the Celtics. Irving and Wyc Grousbeck, through Boston Basketball Partners, acquired the team in 2002 for $360 million—a fraction of its current valuation. Under their leadership, the Celtics became one of the league’s most successful franchises, making 19 playoff appearances and winning two NBA championships, including their most recent title in 2024.
Despite their on-court success, the Celtics faced financial challenges. The team’s payroll surged due to massive contracts for stars like Jaylen Brown ($303.7 million over five years) and Jayson Tatum ($315 million). Additionally, the Celtics do not own their home arena, TD Garden, which is leased from Delaware North, the owner of the Boston Bruins. This arrangement limits the team’s revenue from concessions, signage rights, and other events, putting them at a disadvantage compared to franchises that own their stadiums.
The Grousbeck family cited “estate and family planning considerations” as the reason for the sale, which was first announced in July 2024. Wyc Grousbeck, who will remain the team’s governor until the 2027-2028 season, acknowledged the financial realities of running the Celtics. “We’ve been losing money,” he admitted, “but our priority has always been winning championships.”
The $6.1 billion sale price surpasses the previous record of $6.05 billion for the Washington Commanders (NFL) in 2023 and is $2.1 billion more than the Phoenix Suns’ $4 billion sale in 2023. Other notable sports franchise sales include the Denver Broncos ($4.65 billion in 2022) and the Milwaukee Bucks and Dallas Mavericks ($3.5 billion each in 2023).
Steve Pagliuca, a co-owner of the Celtics, expressed disappointment after his group’s bid was not selected. “We made a record price offer,” he said, “but ultimately, the decision was out of our hands.”
This historic sale highlights the Celtics’ enduring legacy and the immense value of NBA franchises in today’s market. With a new ownership group at the helm, the team’s future looks promising, even as it navigates the financial complexities of modern professional sports.
As fans reflect on the Grousbeck family’s tenure, one thing is clear: the Celtics’ legacy of excellence and their place in NBA history remain secure. The $6.1 billion sale is not just a financial milestone—it’s a testament to the enduring power of one of basketball’s most iconic franchises.
