Inspire Brands, the owner of fast-food chains Dunkin’, Arby’s and Jimmy John’s, said Friday it had confidentially filed for a US initial public offering, as the consumer IPO market picks up steam after a tepid 2025. Atlanta-based Inspire Brands, which was formed in 2018 by private equity firm Roark Capital as a holding company, has a portfolio of more than 33,000 restaurants, including chains such as Buffalo Wild Wings, Sonic Drive-In and Baskin-Robbins. The company  bought Dunkin’ Brands  in