The Denver Broncos have entered a sale agreement with the Walton-Penner family ownership group.

The agreement is for $4.65 billion, according to multiple reports.

That would be a record price paid for a North American sports franchise.

The Walton-Penner group -- headed by Walmart heir Rob Walton; his daughter, Carrie Walton Penner; and her husband, Greg Penner -- will also include Mellody Hobson, co-CEO of Ariel Investments as well as chair of the board of the Starbucks Corp. and a director at JP Morgan Chase.

"Today marks a significant step on the path to an exciting new chapter in Broncos history," Broncos CEO Joe Ellis said.