RBS Securities named Perrin Arturi managing director of its pass-through trading desk in Stamford, Conn. Arturi will head trading of 15-year, mortgage-backed securities for the firm, which conducts the U.S. operations for The Royal Bank of Scotland (RBS). Prior to joining RBS, Arturi held a similar position with UBS AG (UBS). He's been trading agency, pass-through MBS for more than 20 years at Bear Stearns and Donaldson, Lufkin & Jenrette, RBS said. David Cannon, co-head of trading in asset-backed securities, commercial mortgage-backed securities and MBS for RBS Securities, said Arturi joins a "complete team of seasoned agency pass-through traders" at the firm. Write to Jason Philyaw.