Neptune European Opportunities manager will launch Lightman Investment Management, with Thomas Smith taking on his old fund. : Rob Burnett, manager of the Neptune European Opportunities fund, is leaving Neptune to set up his own fund firm. Burnett's departure will bring to an end 16 years at Neptune, with 14 of those spent as a fund manager, including 13 running the £331 million European Opportunities fund. Burnett will leave at the end of the year to set up his own fund management company called Lightman Investment Management.