The world's largest listed hedge fund firm has appointed new top-line leadership.

Man Group, the listed hedge fund business operating worldwide, has unveiled a new management line-up, including a new chief financial officer and investment head.

Jonathan Sorrell’s role as Man Group’s president has developed to include a number of areas across the business. He intends to step down as CFO and focus alongside Luke Ellis, chief executive, on strategic and commercial areas of the business, it said in a statement yesterday.

Mark Jones, who is presently the co-CEO of Man GLG, is appointed CFO and executive director of Man Group. Subject to regulatory approval, he will take on the CFO role following a handover from Sorrell. 

Sandy Rattray has been appointed as chief investment officer, taking on responsibility for Man AHL, Man Numeric, Man GLG and Man Solutions. This was previously part of Ellis’s role while he served as president of the firm. 

Robyn Grew has been appointed to the newly-created position of chief administrative officer. Grew was previously Man Group’s general counsel and global head of legal and compliance.

“The firm has changed a great deal in the past few years and, with my own role also changing, it made sense to look at the way we are organised and where different responsibilities should lie, so that we have the optimal structure in place to serve our clients and assist me in leading the firm through the next phase of development,” Ellis said.

Man Group also unveiled changes at its discretionary fund management business, Man GLG. Pierre-Henri Flamand has been appointed as chief investment officer. He will work alongside Teun Johnston who remains CEO.

Tim Wong, executive chairman of Man AHL and a member of the Man Group executive committee, will become chairman of Man Group Asia. He takes over the role from Pierre Lagrange, who will focus on Man GLG’s ELS strategy, leveraging more than three decades of experience in portfolio management and investment research.