Disclosures for testimonials

With respect to any statement made by a portfolio company executive about Foresite Capital, it should be noted that Foresite Capital, due to its ownership interest in and/or governance rights over a portfolio company, is often in a position to influence decisions regarding executive compensation, executive hiring and firing and other similar matters with respect to that portfolio company.  Such influence gives rise to potential conflicts of interest on the part of portfolio company executives who make statements about Foresite Capital.