is a Partner at Kleiner Perkins Caufield & Byers where she specializes in the development of life science companies. Previously, she was a Principal at J.P. Morgan Partners where she sponsored a series of investments including Acurian, AlgoRx (now Anesiva), Connetics, Diatide, Ilex Oncology, Illumina, Praecis Pharmaceuticals and Triangle Pharmaceuticals. Prior to working in the venture capital industry, Dr. Stack worked as a Derivative Specialist on the Chicago Board of Trade, served as an intern at ARCH Development Corporation, and worked at Abbott Laboratories, where she was involved in the HIV and Hepatitis related programs. In addition to being a board member of Trius, she is currently a board member of CardioDx and Nodality, and is a board observer at Codon Devices, Xdx, Orexigen (OREX), Tethys, and Pacific Biosciences. Dr. Stack received her B.S. in Genetics and Development with distinction from the University of Illinois and her Ph.D. in Immunology from the University of Chicago. She was also a member of the second class of Kauffman Fellows.