Potbelly is set to be acquired by convenience store company RaceTrac in a deal valued at $566 million, the companies announced on Wednesday, Sept. 10. The acquisition is set to close later this year. Until then, the companies will continue to operate independently, according to the announcement news release. Known for its array of sandwiches, Potbelly is a nationwide restaurant chain with 445 locations across the United States, including more than 100 franchised shops. Bob Wright, Potbelly's president a ...