Tuesday, September 15, 2026

The $6.1 Billion Celtics Sale Is Not Street-Legal Yet

A source familiar with the transaction told FOS that Bill Chisholm was clear on NBA rules and planned on becoming the single biggest owner of the team.

Adam Silver
Peter Casey-Imagn Images

It has taken the Timberwolves sale three years and counting to go through. It might not take that long for the sale of the Celtics to get approved, but one thing has become clear this week: Bill Chisholm’s complicated bid to buy the team is not wrapped up yet.

The Grousbeck family announced last week it had an agreement to sell the team to a group of investors, ostensibly led by Chisholm, for $6.1 billion in a multiyear deal that would let Wyc Grousbeck run the franchise until 2028. 

Chisholm is still an obscure figure, and it’s not clear how much money he has, but NBA owners are required to contribute at least 15% of the purchase price when they buy teams. In this case that would mean more than $915 million from Chisholm. 

A spokesperson for Chisholm declined to comment last week when asked by Front Office Sports if he was a billionaire. He did not qualify for popular billionaire lists maintained by Forbes and Bloomberg. The Bloomberg list cuts off at $6.38 billion; an “associate” of Chisholm told the New York Post he was “worth close to $4 billion.”

Chisholm’s private equity company Symphony Technology Group has $12 billion in assets under management.

On Wednesday, Axios reported Chisholm has “committed less money” to the Celtics deal than Sixth Street, the $100 billion San Francisco private equity firm that has reportedly committed $1 billion toward buying the team. 

According to Axios, Sixth Street spending more than Chisholm on the team would violate NBA rules that require PE firms to hold a smaller stake than the primary owner.

A source familiar with the transaction told Front Office Sports that Chisholm was clear on NBA rules and planned on becoming the single biggest owner of the team.

Current Celtics minority owner and losing bidder Steve Pagliuca warned about Chisholm’s bid in a letter to fans last week. “We had no debt or private equity money that would potentially hamstring our ability to compete in the future,” Pagliuca wrote, apparently alluding to the winning bid. The Celtics have hundreds of millions of dollars in luxury tax penalties on their roster coming due as soon as next year, making liquidity essential for any owner who wants to keep the team in NBA title contention, and Pagliuca wrote that his bid was well-capitalized enough to keep winning, “luxury taxes be damned.”

If Chisholm rounds up enough new money to dilute Sixth Street’s stake below the value of his own, he’d be compliant with NBA rules, as long as he continued to own 15% of the team. 

The other possibility raised by Axios is the idea that Chisholm obtain “some sort of waiver from the league.” But NBA commissioner Adam Silver shot that down Thursday at a press conference after the league’s ownership meetings. “At this time, there’s no contemplation of changing our ownership rules,” he said.

Silver said any certainty on the Celtics deal would be premature.

“It’s very early days in that transaction,” he said. “We’re just learning about it. We haven’t had a chance to not just vet potential new owners, but dig into the specifics of the deal.”

Sixth Street did not immediately respond to a request for comment. The company owns stakes in teams like the San Antonio Spurs and Real Madrid and recently bought a nine-figure stake in MLB’s San Francisco Giants.

This field is for validation purposes and should be left unchanged.

Sign up for
The Memo Newsletter

Get the biggest stories and best analysis on the business of sports delivered to your inbox twice every weekday and twice on weekends.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Linkedin
Whatsapp
Copy Link
Link Copied
Link Copied

What to Read

Sep 12, 2026; Baton Rouge, Louisiana, USA; LSU Tigers head coach Lane Kiffin reacts to an intercept by Louisiana Tech Bulldogs during the first half at Tiger Stadium. Mandatory Credit: Stephen Lew-Imagn Images

Oxford Bulking Up Police Presence for Lane Kiffin’s Return

Ole Miss coach Pete Golden asked fans to be rowdy but respectful.

Robert Kraft Confirms He Blocked Macklemore From Gillette Shows

The rapper’s performances in New Jersey featured pro-Palestinian messaging.

Stephen A. Smith: McAfee Has a ‘Different Set of Rules’ at ESPN

Smith signed a nine-figure contract with ESPN last year.
Adam Silver, NBA commissioner, attends the annual Allen and Co. Sun Valley Media and Technology Conference at the Sun Valley Resort in Sun Valley, Idaho, U.S., July 7, 2026.

Clippers Controversy Hangs Over NBA Board of Governors Meeting

Adam Silver is expected to hold a press conference Tuesday.
podcast thumbnail mobile
Front Office Sports Today

9/15/26 – NFL Kickoff Ratings Dip, Ballmer Accepts Punishment, Sweeney Ad Backlash

0:00

Featured Today

Oct 4, 2025; Tempe, AZ, USA; General action during the first period of the game between the Arizona State Sun Devils and the Penn State Nittany Lions at Mullett Arena

How Military-Style Workouts in College Sports Get Dangerous

For elite athletes, high-intensity training can be “very appealing.”
September 6, 2026

Is Carolyn Tisch Blodgett the Future Face of Giants Ownership?

Amid changes at top of Giants ownership, eyes are on Tisch Blodgett.
September 4, 2026

Wild Transfer Window Shows How Premier League Towers Over Soccer

Spending in England vastly outstripped the rest of Europe.
September 3, 2026

Teams Are Spending Millions to Build Luxury Locker Rooms

It’s a recruiting pitch, a retention tool, and a seven-figure line item.
September 1, 2026

High School Football Sidelines Are Clogged With Content Creators

Administrators call these amateur newcomers the “pajama paparazzi.”

Clippers Reverse Course and Accept NBA Punishment

Steve Ballmer said he has “sincere regrets.”
Sep 9, 2026; Los Angeles, California, USA; Los Angeles Dodgers two-way player Shohei Ohtani (17) looks on during the first inning against the Cincinnati Reds at Dodger Stadium.
September 10, 2026

Ohtani Heads to Injured List as Dodgers Aim for Third Title

The two-way phenom is making a rare trip to the injured list.
September 11, 2026

49ers Win Battle of Australia Travel Plans

The Niners blew out the Rams on Thursday.
Sponsored

Drew Weatherford’s Bet on the Youth Sports Economy

Drew Weatherford discusses investing across the youth, college and professional levels.
September 8, 2026

Mayfield, Bucs Break Impasse With Three-Year Extension

The deal runs through the 2029 season.
Aug 30, 2026; Woodland Hills, CA, USA; Los Angeles Rams coach Sean McVay at practice at the Rams Practice Facility
September 5, 2026

Why Are the Niners and Rams Getting to Australia a Week Apart?

The 49ers are already there, while the Rams have yet to leave.
Washington Redskins football shirts and a team flag on sale at a sporting goods store in Bailey's Crossroads, Virginia, U.S., June 24, 2020. REUTERS/Kevin Lamarque
September 4, 2026

Native Leaders to Commanders: Drop Old Name for Good

The franchise says there are no plans to revert to its old name.
Aug 25, 2017; Seattle, WA, USA; General overall view of Seattle Seahawks logo at CenturyLink Field during a NFL football game against the Kansas City Chiefs. Mandatory Credit: Kirby Lee-USA TODAY Sports
Exclusive
September 4, 2026

Mark Stevens Is Seahawks’ Top Minority Investor

Other investors joined the Seahawks’ new ownership from the Mittal-Grousbeck group.