PITTSBURGH, July 29, 2025 /PRNewswire/ -- First National Bank, the largest subsidiary of F.N.B. Corporation (NYSE: FNB), announced today that it has promoted Brian Mancos to Director of Human Resources and Corporate Services, overseeing Human Resources, Facilities and Business Continuity. Brian Mancos Mancos has served as Senior Corporate Counsel for FNB for more than a decade. As Director of Human Resources and Corporate Services, he succeeds Charles Casalnova, who is assuming a Corporate Business Adv ...