Robert Nelsen

Founding Partner

Robert is a Co-Founder and a Managing Director of ARCH Venture Partners. He joined ARCH at its founding and played a significant role in the creation, early sourcing, financing, and development of more than 150 companies, including 47 which have reached valuations exceeding $1 billion. Some of his notable early-stage investments include Illumina, Alnylam Pharmaceuticals, Juno Therapeutics, Karuna Therapeutics, and Altos Labs. Mr. Nelsen is a director of multiple companies, including VIR, SANA, LYEL, National Resilience, Insitro, Xaira Therapeutics and Prime Medicine, among others. He previously served as a Trustee of the Fred Hutchinson Cancer Research Institute, the Institute of Systems Biology, and was a director of the National Venture Capital association. Mr. Nelsen holds an M.B.A. from the University of Chicago and a B.S. from the University of Puget Sound.