Man Group, the alternative investment management firm, has appointed GLG co-chief executive Emmanuel Roman to the newly-created role of chief operating officer - an appointment which will take effect after the acquisition of GLG, which shareholders approved yesterday, is completed.

The acquisition will see Pierre Lagrange, senior managing director of GLG, continue in his role, which involves overseeing investment management and running GLG’s flagship European long short equity strategy. Noam Gottesman will remain co-CEO of GLG with Roman, running GLG’s global opportunity strategy. Lagrange, Gottesman and Roman will report to Peter Clarke, CEO of Man.

Prior to his role at GLG, Roman spent 18 years at Goldman Sachs, where he worked in the fixed income, investment banking and capital markets areas and in 1991 he become the co-head of Worldwide Equity Derivatives.

Recently Man added another senior executive from GLG, Luke Ellis, to its multi-manager business.

Man was founded in 1783 and its funds under management at 30 June 2010 amounted to $38.5 billion.