Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Tables)

v3.21.1
STOCK-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of stock option activity

A summary of the stock option activity and related information for the Plans for the three months ended March 31, 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     12,774,310     $ 1.34                  
Exercised                              
Forfeitures or expirations     (243)        2,937.37                  
                                 
Outstanding at March 31, 2021     22,983,353     $ 2.02       9.51     $ 5,198,480  
Exercisable at March 31, 2021     362,874     $ 54.08       7.04     $ 210,218  

 

Schedule of fair value assumptions of stock options granted

The assumptions used in the valuation of stock options granted during the three months ended March 31, 2021 and 2020 were as follows:

 

    Three Months Ended
March 31, 2021
    Three Months Ended
March 31, 2020
 
Risk-free interest rate     1.00% to 1.34 %     0.49% to 1.25 %
Expected term of option     6.00 years       5.50 to 6.00 years  
Expected stock price volatility     132.23% to 132.78 %     124.11% to 127.83 %
Expected dividend yield     0.0       0.0