Dougan will step down at the end of June, Credit Suisse said in a statement on its website Tuesday. In a separate statement, Prudential said a successor to Thiam has been found and will be named once the regulatory approval process has been completed. Dougan, an American who has led Credit Suisse since 2007, has contended with pressure to shift strategy away from investment banking as the company’s stock posts one of the worst performances among European banks this year. While calls for Dougan to resign died down following Credit Suisse’s settlement with U.S.