Robert Nelsen

Investor

About

Robert Nelsen is a co-founder and Managing Director of ARCH Venture Partners, where he has been involved in the creation, early sourcing, financing, and development of more than 150 companies. He focuses on early-stage investing in novel platform technologies aimed at improving health care and outcomes. He holds an M.B.A. from the University of Chicago and a B.S. in Economics and Biology from the University of Puget Sound.

X / Twitter ↗

Latest on 𝕏

Robert Nelsen @rtnarch

Time to re-think the way we approve drugs for mental health. Depression kills thousands, yet we wont do conditional approval of safe compounds that work but have high placebo effects. But we approve peptides with zero data.

Jul 25, 2026 · ♥ 70 · ⇄ 8

Invests in

BiotechDigital HealthHealthtech

Investments

Board seats

Brii BiosciencesDenali TherapeuticsHua MedicineInsitroMaze TherapeuticsNational ResilienceNeumora TherapeuticsNutcracker TherapeuticsPrime MedicineSana BiotechnologyVir Biotechnology