Ametek, a $2.9 billion Berwyn, Pa.-basedelectric motor company, named Robert Mandos CFOand executive vice president. He succeeds John Molinelli, who isretiring. Mandos, 53, has been comptroller and senior vicepresident of Ametek since 2004 and was named vice president in1998. Since joining the company in 1981, he has also served as costaccounting manager, divisional controller, corporate liaisoncontroller and divisional vice president of finance.

BioScrip, a $1.8 billion pharmacy and homehealth service company, named Hai Tran CFO andtreasurer. He succeeds Mary Jane Graves, interimCFO and treasurer for the Elmsford, N.Y., company since January2011. Tran, 43, most recently was CFO and international vicepresident of Harris Corp.'s Harris Healthcare Solutions. He hasalso served as CFO of Catalyst Health Solutions, treasurer and vicepresident of Hanger Orthopedic Group and senior vice president ofstrategic development and emerging solutions at CadmusCommunications.

Tellabs, a $1.2 billion Naperville, Ind.-basedtelecommunications company, named Andrew SzafranCFO and executive vice president. He succeeds TimothyWiggins, who left in December to become CFO at educationprovider DeVry. Szafran, 45, joins Tellabs from APAC CustomerServices, where he was CFO and senior vice president since 2008.Earlier, he was CFO at Communications Supply Corp. and senior vicepresident of finance for Alliant Foodservice. Szafran began hiscareer at Chemical Banking Corp., a predecessor of JP MorganChase.