Issuers of corporate securities are required to complete Internal Revenue
Service Form 8937 to report organizational actions that affect the basis of
the securities involved in the organizational action. The tax information
contained herein is provided for informational purposes only and should not be
construed as legal or tax advice. Repligen does not provide legal or tax
advice. Please consult your personal tax advisor for assistance as to how this
information will impact your specific tax situation.