Henderson's European equity managers Bill Stormont and Paul Casson have both left the firm, along with smaller companies manager Simon Savill.
Ben Rogoff has moved fully invested on the £515m Polar Capital Technology trust in the view share prices will be supported even if tech firms see further earnings downgrades.
Tony Lanning, multi-manager at Henderson Global Investors, has quit the group to join J.P. Morgan Asset Management.
The global economy remains beset with problems, from low or non-existent growth in developed Western economies, to a slowdown in China.
The winners of the Gold Standard Awards 2012, run by Investment Week's parent company Incisive Media, were recently honoured at a ceremony at the House of Commons.
Adam Smears, formerly the head of investment research at Skandia, has joined Russell Investments to lead its fixed income research team.
GLG's technology fund managers Philip Pearson and Anthony Burton have been adding substantially to their position in US giant Apple after a brutal sell-off recently saw it shed over 20% of its value.
Veritas is to divide its asset management and private client businesses into two separate groups, in an overhaul of the company's structure.