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10-Q - FORM 10-Q - ACHILLION PHARMACEUTICALS INCd230843d10q.htm
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v2.3.0.15
Stockholders' Equity
9 Months Ended
Sep. 30, 2011
Stockholders' Equity [Abstract] 
Stockholders' Equity

12. Stockholders' Equity

Changes in stockholders' equity for the nine months ended September 30, 2011 and 2010 were as follows:

 

     For the Nine Months Ended
September 30,
 
     2011     2010  

Balance at December 31, 2010 and 2009

   $ 50,544      $ 1,022   

Net loss

     (31,821     (19,237

Stock based compensation

     1,984        1,459   

Exercise of stock options

     511        —     

Change in unrealized loss on marketable securities

     (45     (8

Issuance of common stock

     60,947        72,556   

Issuance of common stock under the Employee Stock Purchase Plan

     75        50   
  

 

 

   

 

 

 

Balance at September 30, 2011 and 2010

   $ 82,195      $ 55,842