ArcelorMittal CEO Invests $1 Billion in Group Buying Celtics

Aditya Mittal, chief executive officer of steelmaker ArcelorMittal SA, is investing $1 billion into Bill Chisholm’s purchase of the NBA’s Boston Celtics, according to a person familiar with the transaction.

While Chisholm will still be the largest shareholder, Mittal will have a significant stake in the team, said the person who asked not to be identified because the deal is private. Chisholm’s group originally agreed to buy the Celtics in March from the Boston Basketball Partners in two parts, with the first transaction valuing the team at $6.1 billion, a record price for a control sale of a sports franchise.