Ron Squarer Chief Executive Officer

R. Michael Carruthers Chief Financial Officer

Gary M. Clark, Ph.D. Vice President, Biostatistics & Data Management

Howard Holden, Ph.D. Vice President, Regulatory Affairs & Quality Assurance

Kevin  Koch, Ph.D. President & Chief Scientific Officer

Patrice Lee, Ph.D. Vice President, Pharmacology & Toxicology

John R. Moore Vice President & General Counsel

Michael N. Needle, M.D. Chief Medical Officer

Andrew Robbins Senior Vice President, Commercial Operations

David L. Snitman, Ph.D. Chief Operating Officer & Vice President, Business Development

James D. Winkler, Ph.D. Vice President, Discovery & Translational Biology