Professional Records Lawyers & Attorneys Edith Helman Hallahan, Philadelphia PA - Lawyer View page Address: Nasdaq OMX Group, Inc. (The)Nasdaq Omx 1900 Market St, Philadelphia, PA 19103 (215) 496-5179 (Office) Licenses: Pennsylvania - Active 1992 Edith Hallahan - Lawyer View page ISLN: 924661432 Admitted: 1992