As Jack in the Box struggles with its share value and same-store sales, an activist investor is fighting for a change in ...

Jack in the Box — the fast food chain known for its Sourdough Jack burger and deep-fried tacos — is facing significant business challenges, with a tanking stock and waning customer base. Shares of the ...

Jack in the Box has been ranked the worst fast-food burger chain in America in a new national list that evaluated 21 popular restaurants based on taste, ingredient quality and consumer perception. The ...