Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Tables)

v3.21.2
STOCK-BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 2021
Share-based Payment Arrangement [Abstract]  
A summary of the stock option activity and related information for the Plans for the six months ended June 30, 2021 is as follows:

A summary of the stock option activity and related information for the Plans for the six months ended June 30, 2021 is as follows:

 

    Shares     Weighted-Average
Exercise Price
    Weighted-Average
Remaining
Contractual Term
    Aggregate
Intrinsic
Value
 
Outstanding at December 31, 2020     10,209,286     $ 2.93       9.26     $ 131,558  
Grants     14,763,503     $ 1.31                  
Exercised                            
Forfeitures or expirations     (243 )     2,937.37                  
                                 
Outstanding at June 30, 2021     24,972,546     $ 1.94       9.31     $ 3,160,260  
Exercisable at June 30, 2021     4,151,930     $ 5.51       8.66     $ 1,251,212  
The assumptions used in the valuation of stock options granted during the six months ended June 30, 2021 and 2020 were as follows:

The assumptions used in the valuation of stock options granted during the six months ended June 30, 2021 and 2020 were as follows:

 

    Six Months Ended
June 30, 2021
    Six Months Ended
June 30, 2020
 
Risk-free interest rate     0.80% to 1.63 %     0.36% to 1.25 %
Expected term of option     5.5 to 10 years         5.5 to 6 years  
Expected stock price volatility     124.40% - 137.74 %     124.11% -130.00 %
Expected dividend yield     0.0       0.0