April 4, 2011

Sanofi-aventis Successfully Completes Exchange Offer for Genzyme Corporation

Company Announces Four-Day Subsequent Offer Period for Remaining ShareholdersGenzyme Becomes a Subsidiary of Sanofi-Aventis, Expanding the Company’s Presence in Biotechnology, Including Rare Diseases

 

Sanofi-aventis Successfully Completes Exchange Offer for Genzyme Corporation
  • Company Announces Four-Day Subsequent Offer Period for Remaining Shareholders
  • Genzyme Becomes a Subsidiary of Sanofi-Aventis, Expanding the Company’s Presence in Biotechnology, Including Rare Diseases

Paris, France – April 4, 2011 – Sanofi-aventis (EURONEXT: SAN and NYSE: SNY) announced today that it has successfully completed its exchange offer for all outstanding shares of common stock of Genzyme Corporation (NASDAQ: GENZ).