Sunday, September 20, 2026
  • -
    days
  • -
    hours
  • -
    minutes
  • -
    seconds

Celtics’ Sale Listing Sparks Transition Questions: Here’s What We Know

  • The forthcoming NBA team sale is expected to set a league record, while presenting new questions
  • The elongated transition period contemplated in the deal could present complications.
Winslow Townson-USA TODAY Sports

Talk about an ownership mic drop. 

Celtics majority owner Wyc Grousbeck and his partners have officially put the defending NBA champions up for sale, just two weeks after the team won a league-leading 18th title. Grousbeck previously gave no indications such a move would be coming, saying at the team’s June 21 championship parade that “it feels like we’ve got more to do.”

But the massive turn in events—said by the owners to be for “estate and family planning considerations”— sets up several other major events yet to unfold:

  • The Celtics deal will almost certainly set an NBA record for a team sale. The Suns sold in full last year at a $4 billion valuation to Mat Ishbia, while a minority interest in the Nets parent BSE Global recently changed hands at a $6 billion valuation. The Celtics could certainly beat both figures. Estimated to be worth $4.7 billion before this latest title, the Celtics hitting the market carries plenty of extra luster not only because of the recent championship, but also the historic allure of the team. It’s as if MLB’s Yankees, NBA’s Lakers, or the NFL’s Cowboys were being sold—something that hasn’t happened with those teams since 1973, ‘79, and ’89, respectively. 
  • The transition period could be tricky. Grousbeck and his partners intend to sell a majority interest in the club either later this year or in early 2025. But Grousbeck himself “expects” to remain as Celtics governor, acting as the team’s key figure and decision maker, until ’28. That elongated period recalls the multi-year transition for the Timberwolves that is now the subject of both formal arbitration and considerable acrimony between that teams’ owners. 
  • Both the current Celtics ownership group and the next one are facing big luxury tax bills. Already facing a NBA luxury tax bill of about $40 million for this past season, future years will likely be similar as forward Jayson Tatum is finalizing a supermax contract extension that would reportedly pay him $314 million over five years, helping to keep the Celtics well above the luxury tax threshold. Combined with teammate Jaylen Brown’s five-year, $304 million deal signed last summer, setting a league record, the pair could be set to receive $480 million between 2025 and ’29.
  • There will be relatively few fully attached assets in this deal. The team’s home arena, TD Garden, is owned by Delaware North, the parent company of the NHL’s Bruins, while the Celtics have only a minority interest in its regional sports network, NBC Sports Boston. The Celtics’ elaborate nine-year-old practice facility, the Auerbach Center, is part of the larger, Boston Landing mixed-use development controlled by New Balance. 
  • It’s a big change for a very stable and successful group of Boston pro team owners. No major local men’s pro team has been sold since 2002, when Grousbeck and his partners purchased the Celtics for $360 million, and what is now Fenway Sports Group acquired the Red Sox. The NFL’s Patriots, Red Sox, Celtics, and Bruins have gone on to combine for 13 league titles this century. 
  • FSG has a major decision to make. The multisport ownership group that also includes the Premier League’s Liverpool, NHL’s Penguins, and golf’s Strategic Sports Group, among other holdings, could be a potential suitor, and FSG principal owner John Henry has an existing relationship with Grousbeck. But pursuing the Celtics would mean abandoning existing NBA aspirations, several years in development, tied to a potential expansion team in Las Vegas. And would current Lakers star and FSG partner LeBron James ultimately become a part-owner of the archrival Celtics?

Though Grousbeck is now beginning to wind down his ownership of the team, he still has numerous equity interests elsewhere in sports, primarily through his investment firm, Causeway Media Partners. That company has invested in companies such as ticketing operator SeatGeek, streaming outlet FloSports, and internet radio provider TuneIn, among many others. 

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

NFL Scoring Plummets in Week 2 as Star QBs Go Down

Caleb Williams and Jayden Daniels left with what looked like serious injuries.

Chambliss Steals the Show During Lane Kiffin’s Ole Miss Return

Chambliss stayed at Ole Miss instead of following Kiffin to LSU.
podcast thumbnail mobile
Front Office Sports Today

NFL Ratings Dip, Steve Belichick Resigns, Knicks Ticket Refunds

0:00

Featured Today

Hot & Social/Mets

Sports Teams Are Playing a New Role: Matchmaker

The latest promotion at the stadium? Love.
Exclusive
September 18, 2026

Vicious Infighting Is Jeopardizing the Future of Women’s Baseball

The WPBL’s own CEO admits there’s a “power struggle.”
September 17, 2026

Fantasy Football Drafts Are Turning Into Full-Blown Vacations

Leagues are forgoing solo drafts and replacing them with in-person getaways.
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
September 10, 2026

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.
Sep 10, 2026; Melbourne, Victoria, Australia; Los Angeles Rams head coach Sean McVay during practice at Marvel Stadium. Mandatory Credit: Kirby Lee-Imagn Images

McVay’s Australia Gripe Highlights NFL’s Business-Football Divide

The Rams coach is looking to forget the team’s struggles in Australia.
September 17, 2026

Knicks Blame ‘Mistake’ for Sky-High Ticket Prices

The team halted ticket sales and will issue partial refunds.
Sep 17, 2026; Orchard Park, New York, USA; Buffalo Bills wide receiver Joshua Palmer (5) runs to score a touchdown during the first half against the Detroit Lions at New Highmark Stadium. Mandatory Credit: Gregory Fisher-Imagn Images
September 17, 2026

Bills Mafia Steals the Show in $2.2B Highmark Stadium Debut

The new stadium easily transcended its league-low seating capacity.
Sponsored

Drew Weatherford’s Bet on the Youth Sports Economy

Drew Weatherford discusses investing across the youth, college and professional levels.
Bhathals
September 17, 2026

Fire, Thorns Owners All In on Portland Despite Missing Out on Blazers

The sibling owners say Portland is a “mid-market unicorn.”
September 15, 2026

Ndamukong Suh Blasts Rams’ ‘Asinine’ Australia Travel Plan

The Rams traveled to a game in Melbourne just a day before kickoff.
Exclusive
September 15, 2026

Carolyn Tisch Blodgett Says Giants Ownership Transfer Is Complete

The Tisch shares have been passed down.
September 14, 2026

Clippers Reverse Course and Accept NBA Punishment

Steve Ballmer said he has “sincere regrets.”