In addition, Valeant and Pershing Square Capital Management, L.P. ("Pershing Square") (and, if a negotiated transaction is agreed, Allergan) may file one or more proxy statements or other documents with the SEC. This communication is not a substitute for any proxy statement, registration statement, prospectus or other document Valeant, Pershing Square and/or Allergan have filed or may file with the SEC in connection with the proposed transaction. INVESTORS AND SECURITY HOLDERS OF VALEANT AND ALLERGAN ARE URGED TO READ THE TENDER OFFER STATEMENT, REGISTRATION STATEMENT, AND ANY OTHER DOCUMENTS FILED WITH THE SEC CAREFULLY IN THEIR ENTIRETY IF AND WHEN THEY BECOME AVAILABLE AS THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. Any definitive proxy statement(s) (if and when available) will be mailed to stockholders of Allergan and/or Valeant, as applicable.