PTC THERAPEUTICS, INC. | 2013 | FY | 3


        The following is a summary of the Company's outstanding warrants as of December 31, 2013:                  

                                                 

  Warrant shares   Exercise price   Expiration  

Common stock

    1,428   $ 128.00     2014  

Common stock

    6,250   $ 128.00     2017  

Common stock

    7,030   $ 128.00     2019 and 2020  

Common stock

    452   $ 2,520.00     2014  

        The following is a summary of the Company's outstanding warrants as of December 31, 2012:

 
  Warrant shares   Exercise price   Expiration  

Series Two

    24,712   $ 16.00     2014  

Series Two

    50,000   $ 16.00     2017  

Series Two

    56,250   $ 16.00     2019 and 2020  

Common stock

    645   $ 2,520     2013 and 2014  

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