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Net Loss per Share of Common Stock
 6 Months Ended
Jun. 30, 2014
Earnings Per Share [Abstract]  
Net Loss per Share of Common Stock

8. Net loss per share of Common Stock

The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company (in thousands, except share and per share data):

 

     Three Months Ended
June 30,		     Six Months Ended
June 30,		  
     2014     2013     2014     2013  

Net loss attributable to common stockholders – basic and diluted

    $ (8,600 )    $ (3,655 )    $ (53,585 )    $ (7,674 ) 
  

 

 

    

 

 

    

 

 

    

 

 

  

Weighted-average shares outstanding

      24,194,808        148,082        13,550,582        140,934   

Less: weighted-average shares subject to repurchase

      —          (369 )      —          (369 ) 
  

 

 

    

 

 

    

 

 

    

 

 

  

Weighted-average shares used to compute basic and diluted net loss per share

      24,194,808        147,713        13,550,582        140,565   
  

 

 

    

 

 

    

 

 

    

 

 

  

Basic and diluted net loss per common share

    $ (0.36 )    $ (24.74 )    $ (3.95 )    $ (54.59 ) 
  

 

 

    

 

 

    

 

 

    

 

 

  

Basic net loss attributable to common stockholders per share is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted net loss attributable to common stockholders per share is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common shares and dilutive common stock equivalents outstanding for the period, determined using the treasury-stock method and the as-if converted method, for convertible securities, if inclusion of these is dilutive. Because the Company has reported a net loss for all periods presented, diluted net loss per common share is the same as basic net loss per common share for those periods.

The following potentially dilutive securities outstanding at the end of the periods presented have been excluded from the computation of diluted shares outstanding:

 

     June 30,  
     2014      2013  

Convertible preferred stock

      —           8,115,039   

Warrants to purchase convertible preferred stock(1)

      —           173,910   

Options to purchase common stock

      2,526,446         647,078   

Restricted stock units

      104,821         —     

 

(1) Assumes exercise of warrants to purchase convertible preferred stock at $5.17 per share.