Todd R. Nelson PhD Chief Executive Officer Read More Read More William Snider Member of the Audit CommitteeMember of the Compensation Committee Andrea Jackson Member of the Compensation CommitteeMember of the Nominating and Corporate Governance Committee Frank Witney Member of the Audit CommitteeChair of the Compensation Committee Christine Tsingos Chair of the Audit Committee Jami Nachtsheim Chair of the Nominating and Corporate Governance Committee