Benjamin J. Zeskind Ph.D., MBA
Co-Founder, President, Chief Executive Officer, Director
Dr. Zeskind has served as our Co-Founder, President, Chief Executive Officer and a member of our board of directors since February 2008. Dr. Zeskind received his S.B. in electrical engineering and computer science and his Ph.D. in bioengineering from Massachusetts Institute of Technology, or MIT, and his M.B.A. from Harvard Business School, where he was recognized as a Baker Scholar, the highest award for distinction. 
Biren Amin MBA
Chief Financial Officer, Treasurer
Mr. Amin has served as our Chief Financial Officer since April 2021. Prior to joining us, Mr. Amin served as a Managing Director of Jefferies Financial Group Inc., an American financial services company based in New York City, in their Biotechnology Equity Research group, from June 2011 until March 2021. Previously, he spent time at other equity research firms such as WJB Capital Group, Inc., FTN Equity Capital Markets Corporation, Stanford Group Company and Prudential Equity Group, LLC focusing on pharmaceutical and biotechnology company investments. Over approximately two decades, Mr. Amin built a strong track record on Wall Street covering small and mid-cap pharmaceutical and biotechnology companies focusing on oncology, CNS disorders, ophthalmology and rare diseases. He started his career at Aventis Pharmaceuticals Inc., a former public pharmaceutical company, which merged with Sanofi S.A., where he served as the Senior Manager in their Scientific Competitive Intelligence group. Mr. Amin received his B.S. in pharmacy from the University of the Sciences in Philadelphia, his M.S. in pharmacy from Long Island University and his M.B.A. from the Stern School of Business at New York University.
Scott Barrett M.D.
Chief Medical Officer
Dr. Barrett has served as our Chief Medical Officer since November 2019. Prior to joining us, Dr. Barrett served as the Executive Director of Global Medical Affairs of Incyte Corp, a publicly traded biopharmaceutical company focused on discovery, development and commercialization of proprietary therapeutics in oncology and other areas of interest, from June 2016 until November 2019. Prior to that, he served as the Senior Director of Clinical Development of Infinity Pharmaceuticals, Inc., a publicly traded biopharmaceutical drug development company, from July 2014 until June 2016. Dr. Barrett is a trained physician-scientist, accomplished medical oncologist and a drug discovery and development expert with more than 30 years of clinical and research experience. He received his B.A. in natural science from The Johns Hopkins University as a Beneficial-Hodson Scholarship recipient, his M.D. from the University of Miami School of Medicine and completed his internal medicine residency at the Mayo Clinic in Rochester, Minnesota. Dr. Barrett then went on to complete a fellowship in medical oncology at Memorial Sloan-Kettering Cancer Center and became board-certified in internal medicine and medical oncology.
Brett Hall Ph.D.
Chief Scientific Officer
Dr. Hall has served as our Chief Scientific Officer since November 2019. He also serves as the President, Founder and Chairman of the board of directors of Bioarkive, Inc., or Bioarkive, a privately held biotechnology services company, and President and Founder of Trans Medical Sciences, LLC, a privately held consulting company for biotechnology and biopharmaceutical companies. Prior to joining us, Dr. Hall served as the Chief Executive Officer of Asellus Therapeutics, LLC, a privately held biotechnology company, from July 2015 until May 2018. Dr. Hall served in roles of increasing responsibility with Johnson & Johnson, a multinational corporation that develops medical devices, pharmaceuticals and consumer packaged goods, from November 2008 until July 2014, culminating in his role as the Head of Biomarkers of the Hematologic Disease Area Stronghold, where he led translational efforts for Sylvant® and Imbruvica® through clinical development. Subsequently, he served as the Head of Translational Medicine of Oncology at Medimmune, LLC, the biologics division of AstraZeneca Pharmaceuticals LP, from July 2014 until July 2015, before transitioning to executive discovery roles in biotechnology. He has extensive drug development and leadership experience ranging from early drug discovery through translational clinical sciences, including multiple drug registrations. Dr. Hall has extensively published in the areas of TME and translational sciences, and holds multiple patents for drug pharmacology and discovery. He was also a tenure-track Assistant Professor at Ohio State University where his laboratory focused on the development of human TME-aligned models to better translate preclinical data into the clinic and discover novel biomarkers. Prior to Dr. Hall’s career in life sciences, he served in the United States Air Force and worked as an investment banker. Dr. Hall received his B.S. in biochemistry from Ohio State University, his Ph.D. in immunology and cancer biology from West Virginia University and completed his post-doctoral fellowship in cancer cell epigenetics at St. Jude Children’s Research Hospital.
Michael Bookman J.D.
General Counsel, Secretary
Mr. Bookman has served as our General Counsel and Secretary since July 2021. Prior to joining Immuneering, Mr. Bookman served as General Counsel and Secretary of Frequency Therapeutics from September 2019 to July 2021. In this role, he was a member of the Executive Leadership Team and established and led Frequency’s Legal Department as its first in-house attorney. Mr. Bookman also played a key role in Frequency’s initial public offering in October 2019. Prior to his time at Frequency, Michael was an associate at Latham & Watkins LLP, a leading international law firm where he worked on corporate transactional, securities and general business and governance matters, with an emphasis on representing high-growth technology and life sciences companies.
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