Millennium Senior Energy Trader Brian O’Hara Departs Hedge Fund

Millennium Management senior energy portfolio manager Brian O’Hara is leaving the hedge fund giant after nearly three years with the firm, people familiar with the matter said.

O’Hara has a background in power trading and was based in Connecticut, the people said, asking not to be named discussing private matters. He was previously the global head of commodities at energy merchant Six One Commodities and a senior portfolio manager at commodity trader Mercuria.

Demand for traders who specialize in natural gas and power has soared in recent years as volatility and extreme weather events create dislocations for traders and hedge ...