Two lawyers with Am Law 200 pedigrees—including a former Sullivan & Cromwell associate in New York and the former head of Buchanan Ingersoll & Rooney’s China practice in Philadelphia—have been ensnared in the latest troubles of Chinese stock promoter Benjamin Wey.

On Thursday, the U.S. Securities and Exchange Commission charged lawyers Robert Newman and William Uchimoto, as well as Wey, with breaking civil securities laws. Wey was also criminally charged by the Department of Justice on Thursday for fraudulent corporate activity.