Joshua Kushner became a minority shareholder of the Memphis Grizzlies earlier this season. Kushner is the younger brother of Jared Kushner. Adam Silver is reportedly close friends with Jared Kushner.

Jesse Derris, a spokesman for Joshua Kushner, confirmed the purchase, as did a spokesman for the N.B.A.

“Brandon Arrindell and Joshua Kushner recently, in their respective individual capacities, purchased minority stakes in the Grizzlies,” said a team spokesman in a statement.

Kushner agreed with Grizzlies owner Robert Pera to purchase a share of the team as a limited partner in late 2018.