The division of BlueCrest Capital Management LLP said it hired Paul Griffith, Robert Marsden and Michael Dorgan to its fixed income investment team.
Griffith was previously at Merrill Lynch, while Marsden has joined from Mercer. Dorgan joined the firm in May from Glencore UK Ltd.
The company said it appointed Dino Fuschillo to head its European team. Prior to joining FOUR, Fuschillo was at Martin Currie.
The Russian investment bank said it appointed Paolo Zaniboni as head of the company's London office. In addition, Zaniboni, who has been with Troika since June 2007, will continue his work as head of research.
The international subsidiary of the Orange Group said it hired Sebastien Jaouen as head of its trading community services line of business. Jaouen, who was previously at Benelux for GL Trade, will be based in Paris.
The new wealth management organization said it appointed Simeon Downes as senior investment analyst. Prior to joining the firm, Downes was at RiskMetrics Group (Compiled by Antonita Madonna Devotta in Bangalore)