Valuation snapshotSource: Forbes NBA Valuations, Oct 2025
Latest estimated value
$6.7B
Estimated annual revenue
$458M (Forbes 2025, 2024-25 season)
Implied revenue multiple
14.6x (calc.)
YoY change
+12% (1-yr)
Most recent transaction
Control Sale
Implied valuation, last tx
$6.1B (phase 1) / $7.3B (2028 phase, per original deal structure)
Ownership
Controlling ownerBill Chisholm (STG-led group incl. Sixth Street, Rob Hale, Bruce Beal Jr., Aditya Mittal)
Ownership stake—
Owner since2025
Acquisition price$6.1B valuation (phase 1); remaining minority priced at $7.3B by 2028
Transaction history
2 on file| Date | Type | Buyer | Seller | Stake | Price | Implied Val | Mult. | Conf. |
|---|---|---|---|---|---|---|---|---|
| 2025-08-25 | Control Sale | Bill Chisholm group | Boston Basketball Partners (Grousbeck family) | ≥51% control (phase 1); remaining minority to be bought out by 2028 at $7.3B valuation | Phase 1 at $6.1B valuation | $6.1B (phase 1) / $7.3B (2028 phase, per original deal structure) | — | High |
| 2002-12-31 | Control Sale | Boston Basketball Partners (Wyc Grousbeck) | Paul Gaston | 100% | $360M | $360M | — | High |
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Valuations and revenue estimates on this page are sourced from publicly available reporting and are presented for informational purposes only. SportsCapIQ is not affiliated with the Boston Celtics, the NBA, or any party referenced. See full methodology and disclaimer.