Exclusive-Largest Papa John's franchisee joins Irth in buyout bid for pizza chain, sources say
By Svea Herbst-Bayliss NEW YORK, May 14 (Reuters) - Investment firm Irth Capital is working with Papa John's International's largest U.S. franchisee, who controls around 10% of the pizza chain's domestic restaurants, to take the company private, three sources told Reuters. 
