Quarterly report pursuant to Section 13 or 15(d)

Common Stock (Tables)

v2.4.0.6
Common Stock (Tables)
9 Months Ended
Sep. 30, 2012
Common Stock [Abstract]  
Components of stock-based compensation expense

The following table summarizes the stock-based compensation expense from awards, including stock options and restricted Common Stock awards to employees and non-employees, compensation expense for the ESPP and warrants to non-employees for the nine months ended September 30, 2012 and 2011, and from the period June 28, 2006 (date of inception) to date.

 

                         
    For the nine months ended
September 30,
   

Period from

June 28, 2006

(date of

inception) to

September 30,

 
($ in thousands)   2012     2011     2012  

Employee awards

  $ 1,336     $ 359     $ 2,071  

Non-employee awards

    412       192       3,225  

Non-employee warrants

    425       231       752  
   

 

 

   

 

 

   

 

 

 

Total stock-based compensation expense

  $ 2,173     $ 782     $ 6,048  
   

 

 

   

 

 

   

 

 

 
Summary of stock option activity

The following table summarizes stock option activity:

 

                                 
    Outstanding Options     Weighted
Average
Remaining
Contractual
Life (in
years)
 
($ in thousands except per share amounts)   Number of
Shares
    Weighted
Average
Exercise
Price
    Total
Weighted
Average
Intrinsic
Value
   

At December 31, 2011

    1,814,070     $ 2.17     $ 7,852       9.2  

Options granted

    620,000       6.86                  

Options exercised

    —                            

Options cancelled

    25,000                          
   

 

 

                         

At September 30, 2012

    2,409,070     $ 3.28     $ 4,573       8.7  
   

 

 

                         

Options vested and expected to vest

    2,409,070     $ 3.28     $ 4,573       8.7  

Options vested and exercisable

    578,023     $ 1.96     $ 1,873       8.4