FINRA Launches Investigation Into Securities Broker Antoine Souma Relating To Possible Concealment Of Client Complaint It appears that securities broker Antoine Nabih Souma (CRD#: 4210987, Los Angeles, California) is under FINRA investigation. Essentially, FINRA says in a December 2020 disclosure that it might take disciplinary action against Souma for possibly violating FINRA and MSRB rules […]