(Bloomberg) -- When the US punished Morgan Stanley for leaking upcoming stock trades to favored clients, it kept the list of recipients secret. They include one of Wall Street’s biggest players: Citadel.Most Read from BloombergHaley Loses Nevada Primary to ‘None of These Candidates’ OptionChina Replaces Top Markets Regulator as Xi Tries to End RoutTesla Asks Which Jobs Are Critical, Stoking Layoff FearsUS Commercial Real Estate Contagion Is Now Moving to EuropeTrump Denied Immunity in DC Electio