Money Inspire Brands, parent company of Arby’s and Sonic, to purchase Dunkin’ Brands for $11.3 billion October 30, 2020October 31, 2020Kelly Tyko, USA TODAYComments Off on Inspire Brands, parent company of Arby’s and Sonic, to purchase Dunkin’ Brands for $11.3 billion Dunkin' Brands is expected to join the Inspire Brands Inc. in a deal worth $11.3 billion and considered one of the largest restaurant deals in years.