Hartaj Singh works at Oppenheimer. Before joining Oppenheimer, he was the director/biotechnology analyst for BTIG and a portfolio manager for Tecumseh Partners. As a senior project analyst at Visium Asset Management, he took advantage of fundamental discontinuities in Wall Street's perception of healthcare companies to return value to investors. Earlier, at Lehman Brothers, he was instrumental in the relaunch of the company's mid- and large-cap coverage. His tenure at Navigant Consulting enabled him to conduct hundreds of interviews with company executives and physicians, enhancing his understanding of their specific challenges. Early in his career, he was a strategic analyst for Johnson & Johnson, focusing on its global central nervous system/psychiatry franchise. While at ClinTrials Research, he coordinated clinical management for an anti-epileptic new drug application (NDA), and was the youngest clinical project manager to lead an NDA filing.