Citigroup has hired Ian Maynard from Nomura International as global head of trading in its prime finance unit, which provides financing and stock lending services to hedge funds, in its seventh senior appointment this year.

Maynard, who became executive director of equity finance trading at Nomura in London when the Japanese bank acquired the European arm of Lehman Brothers, left Nomura last month. He had been a long-term staffer in Lehman Brothers' prime broking operation. A source at Citigroup confirmed his appointment last week.