The Brief Potbelly is being acquired by RaceTrac for $566 million in an all-cash deal. Sandwich maker Potbelly is being acquired by the gas station and convenience store chain RaceTrac for $566 million. The company said the deal with RaceTrac will help it reach its goal of quadrupling in size to 2,000 locations. Potbelly shares jumped more than 31% to $17. Sandwich chains and restaurants have struggled in recent years, starting with the pandemic that had millions eating at home when they would usually have dined out.