Robert J. Mulroy, President & Chief Executive Officer
Lisa A. Evrén, Executive Vice President & Chief Financial Officer
Ulrik B. Nielsen, Ph.D., Senior Vice President & Chief Scientific Officer
Clet Niyikiza, Ph.D., Senior Vice President of Development
Fazal R. Khan, Ph.D., Senior Vice President of Manufacturing
Edward J. Stewart, Senior Vice President of Business Development

Robert J. Mulroy has served as a director, and President and Chief Executive Officer since 1998. Since joining Merrimack, Mr. Mulroy has guided the financing, strategic direction, and operating growth of the Company. He worked previously as a management consultant supporting the strategic needs of clients in the pharmaceutical and healthcare industries. He has also worked as consultant in the field of international development and has served as an advisor to multiple start-ups in the biotechnology industry. He holds a B.A. from Stanford University and a master’s degree in public and private management (MPPM) from Yale University.

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Lisa A. Evrén joined Merrimack Pharmaceuticals in June 2007 and serves as Executive Vice President and Chief Financial Officer. From 2002 to 2007, Ms. Evrén was Vice President and Treasurer at Amgen, Inc. where she was responsible for capital raising, investment, and associated P&L, balance sheet and risk management areas. Prior to Amgen, Ms. Evrén held senior finance positions at Sun Microsystems, Inc., Hewlett-Packard Company and Pfizer Inc. Ms. Evrén holds a BA from Pomona College, a JD and Ll.M (Taxation) from the New York University School of Law, and is also a registered nurse.

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Ulrik B. Nielsen, Ph.D. serves as Merrimack’s Senior Vice President and Chief Scientific Officer and is a co-founder of Merrimack. Prior to joining Merrimack, Dr. Nielsen was a post-doctoral fellow in Dr. Peter Sorger's laboratory at the Massachusetts Institute of Technology, where he researched the interface among biology, engineering, and computational biology. Dr. Nielsen received his Ph.D. from the University of Copenhagen in molecular biology and trained in the laboratory of Dr. James D. Marks at the University of California, San Francisco. Dr. Nielsen received an M.S. and a B.S. in biochemistry from the University of Copenhagen.

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Clet Niyikiza, Ph.D. joined Merrimack in July 2009 as the Senior Vice President of Product Development.  Dr. Niyikiza will be responsible for the pre-commercial and commercial planning of the Company’s pipeline of therapeutics.  Dr. Niyikiza joins Merrimack from GlaxoSmithKline (GSK) where his most recent position was Vice President and Medicine Development Leader overseeing product development and global anti-cancer medicine development. Prior to that, Dr. Niyikiza held multiple high level positions at GSK and at Eli Lilly where he eventually led the translational and applied genomics research program research division. Dr. Niyikiza received a M.A. in Mathematics and Statistics and a Ph.D. in Mathematical Sciences from Indiana University.

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Fazal R. Khan, Ph.D. joined Merrimack Pharmaceuticals in April 2006 and serves as the Senior Vice President of Manufacturing. Most recently, Dr. Khan worked at Cellective Therapeutics, Inc. as Vice President of Manufacturing, until the company was acquired by MedImmune. Prior to Cellective, Dr. Khan was Vice President of Manufacturing Operations at Human Genome Sciences (HGS). Preceding his work at HGS, Dr. Khan was the Director of Biopharmaceuticals Development and Manufacturing at Hoffmann-LaRoche, Inc. During his tenure at Hoffmann-LaRoche, Dr. Khan managed the development and manufacturing of several biologics for clinical trials and for commercial needs. Dr. Khan gained international experience working with Roche Basel in Switzerland, Celltech Group in the United Kingdom and Nippon Roche in Japan. Dr. Khan received his B.S. in Biology and M.S. and PhD in Biochemistry from Aligarh University in India.

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Edward J. Stewart joined Merrimack in 2001 and serves as the Senior Vice President of Business Development. Mr. Stewart has been responsible for various product and business development functions within the Company including corporate partnering, licensing, intellectual property management and commercialization strategy. Prior to Merrimack, he consulted on issues of product strategy to clients in the pharmaceutical, biotechnology and medical device industries. He holds a BS from Bates College and a Masters in Business Administration (MBA) from the Johnson School at Cornell University.

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