Sandra Hartog, Ph.D. bio
President and CEO
sandra.hartog@fenestrainc.net

Howard Epstein, Ph.D. bio
Chief Operating Officer
howard.epstein@fenestrainc.net

Lynn G. Collins, Ph.D. bio
Executive Vice President
lynn.collins@fenestrainc.net

Matthew R. Tonken, M.A. bio
Vice President, Director of HR Technology
matthew.tonken@fenestrainc.net