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In much of the past decade, the world’s largest hedge fund has favored having not one, but two people simultaneously holding its top position.
Westport-based Bridgewater Associates returned to that leadership structure when it named in January two new co-chief executive officers : Mark Bertolini, a former CEO of Hartford-based health insurance giant Aetna, and Nir Bar Dea, formerly Bridgewater’s deputy CEO. They succeeded David McCormick, who resigned ahead of an ultimately unsuccessful run for the Republican nomination for a U.S. Senate seat in Pennsylvania.