Jérôme Kerviel Jérôme Kerviel Jérôme Kerviel (; born 1977) is a French trader who was convicted in the 2008 Société Générale trading loss for breach of trust, forgery and unauthorized use of the bank's computers, resulting in losses valued at €4.9 billion. Société Générale characterizes Kerviel as a rogue trader and claims Kerviel worked these trades alone and without its authorization. These assertions have been met with skepticism by some of Kerviel's former colleagues and acquaintances, as well as by some members of the news media. Kerviel had told investigators that his trading behavior was widespread at the company and that making
Morgan Stanley by 'pre-hedging' trades without their consent. The Financial Services Authority fined the firm £1.4m for failing to use controls properly relating to the actions of a rogue trader on one of its trading desks. Morgan Stanley admitted on June 18, 2008 this resulted in a $120m loss for the firm. Morgan Stanley managing director Du Jun was convicted of insider trading after a criminal trial in Hong Kong. Mr. Du was accused of buying 26.7 million shares of Citic Resource Holdings while in possession of confidential information about the company. He gained this information as part of a Morgan Stanley