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Billionaire Ken Griffin moving Citadel hedge fund's corporate office to Miami from Chicago | Miami Herald
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Billionaire Ken Griffin donates $130 million to Chicago organizations as he leaves for Florida – Chicago Tribune
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How billionaire investor Ken Griffin makes and spends his money: he stopped donating to Harvard, but he's splurged on beachfront mega-mansions, Covid-19 relief efforts … and the Republican Party | South China
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