Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity and Stock-Based Compensation (Tables)

v3.19.1
Stockholders' Equity and Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2019
Stockholders Equity And Stock-based Compensation  
Schedule of Warrants Outstanding

    March 31,     December 31,  
Outstanding Warrants   2019     2018  
Issued to Investors on October 25, 2013, entitling the holders to purchase 250,000 common shares in the Company at an exercise price of $11.50 per common share up to and including April 24, 2021. In 2016, 59,450 of these warrants were exchanged for common stock, and all remaining warrant holders agreed to new warrant terms, which excluded any potential net cash settlement provisions in exchange for a reduced exercise price of $6.25 per share.     163,986       163,986  
                 
Issued to Investors on November 17, 2014, entitling the holders to purchase 546,919 common shares in the Company at an exercise price of $11.55 per common share up to and including May 16, 2022. On June 30, 2016, the warrant holders agreed to new warrant terms, which excluded any potential net cash settlement provisions in order to classify them as equity in exchange for a reduced exercise price of $6.25 per share.     546,919       546,919  
                 
Issued to an investment bank and subsequently transferred to a principal of the investment bank regarding the Series B Preferred Stock investment on January 30, 2018, entitling the holder to purchase 133,432 common shares in the Company at an exercise price of $1.50 per share, up to and including January 30, 2021.     133,432       133,432  
                 
Total     844,337       844,337  

Schedule of Share-based Compensation, Stock Options, Activity

   

Three Months ended

March 31,

 
    2019     2018  
             
Research and development expenses   $ 170,134     $ 503,217  
General and administrative expenses     164,879       769,818  
Total stock-based compensation expense   $ 335,013     $ 1,273,035  

Schedule of weighted average years remaining of expected life activity

Expected volatility     90 %
Risk free interest rate     2.84 %
Dividend yield rate     0 %
Weighted average years     9.8 months  
Closing price per share – common stock   $ 0.88  

Schedule of Stock option transactions of the employees

Stock option transactions to the employees, directors and consultants are summarized as follows for the three months ended March 31, 2019:

 

   

Options

Outstanding

   

Weighted

Average

Exercise

Price

   

Weighted

Average

Grant Date

Fair Value

 
Beginning of the period     5,604,154     $ 2.72     $ 1.96  
Granted     -       -       -  
Exercised     -       -       -  
Forfeited     (215,598 )     2.44       1.75  
Expired     (46,364 )     19.10       18.47  
End of the period     5,342,192     $ 2.59     $ 1.82  
                         
Options exercisable     3,673,176     $ 3.36     $ 2.34  

 

Stock option transactions of the employees, directors, and consultants are summarized as follows for the year ended December 31, 2018:

 

   

Options

Outstanding

   

Weighted

Average

Exercise

Price

   

Weighted

Average

Grant Date

Fair Value

 
Beginning of the year     3,976,884     $ 3.58     $ 2.49  
Granted     1,784,455       0.90       0.70  
Exercised     -       -       -  
Forfeited     (143,980 )     1.10       0.83  
Expired     (13,205 )     30.60       21.13  
End of the year     5,604,154     $ 2.72     $ 1.96  
                         
Options exercisable     3,935,138     $ 3.50     $ 2.49  

Schedule of Non-Vested Options, Activity

    Shares    

Weighted-

Average Fair

Value

Grant Date

   

Weighted

Average

Exercise Price

                 
Non-vested – December 31, 2017     1,542,736     $ 1.10     $ 1.58
Granted     1,784,455       0.70       0.90
Vested     (1,514,195 )     1.27       1.58
Forfeited     (143,980 )     0.83       1.10
Non-vested – December 31, 2018     1,669,016     $ 0.54     $ 0.91
                       
Granted     -       -       -
Vested     -       -       -
Forfeited     -       -       -
Non-vested – March 31, 2019     1,669,016     $ 0.54     $ 0.91

Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

The following table provides certain information with respect to the above-referenced stock options that were outstanding and exercisable at March 31, 2019:

 

    Stock Options Outstanding     Stock Options Vested  
    Weighted                 Weighted              
    Average                 Average              
    Remaining           Weighted     Remaining           Weighted  
    Contractual     Number     Average     Contractual     Number     Average  
    Life     of     Exercise     Life     of     Exercise  
Exercise Prices     -Years     Awards     Price       -Years     Awards     Price  
                                         
$0.90-$1.04     9.35       1,616,402     $ 0.90       -       -     $ -  
$1.05-$2.00     8.32       2,397,193     $ 1.18       8.31       2,344,579     $ 1.19  
$2.01-$6.00     6.61       787,760     $ 4.59       6.61       787,760     $ 4.59  
$6.01-$20.00     3.95       465,850     $ 7.49       3.95       465,850     $ 7.49  
$20.01-$43.25     0.79       74,987     $ 32.87       0.79       74,987     $ 32.87  
Total     7.89       5,342,192     $ 2.59       7.24       3,673,176     $ 3.36  

  

The following table provides certain information with respect to the above-referenced stock options that were outstanding and exercisable at December 31, 2018:

 

    Stock Options Outstanding     Stock Options Vested  
    Weighted                 Weighted              
    Average                 Average              
    Remaining           Weighted     Remaining           Weighted  
    Contractual     Number     Average     Contractual     Number     Average  
    Life     of     Exercise     Life     of     Exercise  
Exercise Prices     -Years     Awards     Price       -Years     Awards     Price  
                                         
$0.90-$1.04     9.60       1,616,402     $ 0.90             -     $  
$1.05-$2.00     8.57       2,560,330     $ 1.18       8.56       2,507,716     $ 1.18  
$2.01-$6.00     6.86       813,583     $ 4.59       6.86       813,583     $ 4.59  
$6.01-$20.00     4.16       501,334     $ 7.48       4.16       501,334     $ 7.48  
$20.01-$43.25     0.72       112,505     $ 29.46       0.72       112,505     $ 29.46  
Total     8.07       5,604,154     $ 2.72       7.42       3,935,138     $ 3.50