First National Bank, subsidiary of F.N.B. Corporation, has said that it has appointed Sam Colton as senior vice president, director of Treasury Management. In his new role based in Pittsburgh, Pennsylvania, Colton will be responsible for FNB's Treasury Management and Merchant Services operations, overseeing product management, business development and customer service for commercial and government clients across FNB's multi-state footprint. Colton will report to Bryant Mitchell, chief wholesale banking officer. Colton, who has more than two decades of industry experience, has previously held leadership positions in Treasury Management with Citibank (NYSE: C), PNC (NYSE PNC) and National City. He holds designation as a Certified Treasury Professional.