EmmanuelRoman will become CEO of Pacific Investment Management Co. LLC as of Nov. 1.

Roman will take over responsibilities from , who will assume anew role as managing director and senior adviser.

Roman, who currently serves as CEO of , will be succeeded byLuke Ellis on Sept.1. Ellis has served as president of Man Group since 2012.

Roman will also step down from Man Group's board Aug. 31.

Jonathan Sorrell will continue as president alongside hisrole as CFO.

AllianzGroup is the parent of PIMCO.