Quarterly report pursuant to Section 13 or 15(d)

Stock Options (Tables)

v3.5.0.2
Stock Options (Tables)
9 Months Ended
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Assumptions Used Principally in Determining Fair Value of Options Granted

The assumptions used principally in determining the fair value of options granted were as follows:

 

    Nine Months Ended
September 30,
 
    2016     2015  
Risk free interest rate     1.65 %     1.70 %
Expected dividend yield     0 %     0 %
Expected term in years     6.74       7.23  
Expected volatility     93.1 %     92.7 %
Estimated forfeiture rate     5 %     3 %

Summary of Option Activity

A summary of option activity for the nine months ended September 30, 2016 and is presented below:

 

                  Weighted        
                  Average        
                  Remaining        
            Weighted     Contractual     Average  
            Average     Term in     Intrinsic  
Options     Shares     Exercise Price     Years     Value  
Outstanding at December 31, 2015       3,982,065     $ 1.03                  
Granted       2,265,000       3.07                  
Exercised       (259,386 )     1.39             $ 610,608  
Forfeited       (55,000 )     2.29                  
Outstanding at September 30, 2016       5,932,679     $ 1.78       8.20     $ 29,898,632  
Vested at September 30, 2016       2,465,024     $ 0.99       7.20     $ 14,305,415