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Mass. Movers

Carl Icahn buy may lead to battle for Nuance

Paul A. Ricci is Nuance’s chairman and CEO.

Dan Lamont/File

Paul A. Ricci is Nuance’s chairman and CEO.

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Nuance Communications Inc. spiked early in the week on news that Carl Icahn, the activist investor, said that he has accumulated 9.3 percent of the Burlington maker of the speech technology behind the Dragon and Apple Siri systems. Icahn’s move may set the stage for what could be a messy battle for control of Nuance, pitting him against a combative CEO in Paul Ricci who built Nuance into a technology powerhouse while bruising more than a few egos along the way.

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