Ametek, a $2.9 billion Berwyn, Pa.-based electric motor company, named Robert Mandos CFO and executive vice president. He succeeds John Molinelli, who is retiring. Mandos, 53, has been comptroller and senior vice president of Ametek since 2004 and was named vice president in 1998. Since joining the company in 1981, he has also served as cost accounting manager, divisional controller, corporate liaison controller and divisional vice president of finance.
BioScrip, a $1.8 billion pharmacy and home health service company, named Hai Tran CFO and treasurer. He succeeds Mary Jane Graves, interim CFO and treasurer for the Elmsford, N.Y., company since January 2011. Tran, 43, most recently was CFO and international vice president of Harris Corp.’s Harris Healthcare Solutions. He has also served as CFO of Catalyst Health Solutions, treasurer and vice president of Hanger Orthopedic Group and senior vice president of strategic development and emerging solutions at Cadmus Communications.