About Us
Meet the people behind Variant Bio
Our team's expertise spans genetics, molecular biology, therapeutics, anthropology, and ethics. We are united in the belief that human genomics has the power to transform drug development.


Andrew Farnum
Chief Executive Officer

Holly Vance
Chief Operating Officer & Chief Legal Officer

Stephane Castel, PhD
Co-Founder, Chief Technology Officer & Chief Genomics Officer

David Moller, MD
Chief Scientific Officer

Steve Bryant, PhD
Chief Business Officer

David Powell, PhD
VP, Therapeutics Discovery

Heather Arnett, PhD
VP, Research

Laura Yerges-Armstrong, PhD
VP, Computational Genetics

Leslie Hepner
VP, Operations

Prathap Kasina
Sr. Director, Partnerships & Business Development