XML 36 R26.htm IDEA: XBRL DOCUMENT v3.23.2
STOCK-BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Recognized Stock-Based Compensation Expense
The Company’s stock-based compensation expense was recognized in operating expenses as follows:
Three Months EndedSix Months Ended
June 30, 2023June 30, 2022June 30, 2023June 30, 2022
Research and development$579,917 $387,384 $1,090,177 $782,876 
General and administrative1,368,731 1,332,833 2,774,988 2,262,153 
Total$1,948,648 $1,720,217 $3,865,165 $3,045,029 
Schedule of Allocation of Stock-based Compensation Expense by Plan
Three Months EndedSix Months Ended
June 30, 2023June 30, 2022June 30, 2023June 30, 2022
Stock options$1,935,202 $1,700,041 $3,836,565 $3,003,834 
Employee Stock Purchase Plan13,446 20,176 28,600 41,195 
Total$1,948,648 $1,720,217 $3,865,165 $3,045,029 
Schedule of Assumptions Used to Compute Fair Value of Employee Option Granted
The fair value of employee options granted during the three and six months ended June 30, 2023 and 2022 was estimated utilizing the following assumptions:
Three Months EndedSix Months Ended
June 30, 2023June 30, 2022June 30, 2023June 30, 2022
Weighted
Average
Weighted
Average
Weighted
Average
Weighted
Average
Volatility84.11 %87.20 %84.56 %87.20 %
Expected term in years6.086.086.076.08
Dividend rate0.00 %0.00 %0.00 %0.00 %
Risk-free interest rate3.63 %2.78 %3.97 %2.16 %
Fair value of option on grant date$2.66 $2.38 $1.92 $2.17 
The fair value of non-employee options granted during the three and six months ended June 30, 2023 and 2022 was estimated utilizing the following assumptions:
Three Months EndedSix Months Ended
June 30, 2023June 30, 2022June 30, 2023June 30, 2022
Weighted
Average
Weighted
Average
Weighted
Average
Weighted
Average
Volatility83.00 %— %83.00 %— %
Expected term in years5.250.005.250.00
Dividend rate0.00 %0.00 %0.00 %0.00 %
Risk-free interest rate3.89 %— %3.89 %— %
Fair value of option on grant date$2.42 $— $2.42 $— 
Schedule of Options Outstanding and Weighted Average Exercise Price
The following table summarizes the number of options outstanding and the weighted average exercise price:
 Number of Shares Weighted
Average
Exercise
Price
Weighted
Average
Remaining
Contractual
Life in Years
Aggregate
Intrinsic
Value
Options outstanding December 31, 202212,961,238 $4.13 7.42$62,158 
Granted3,000,500 2.62 9.69
Exercised(91,078)2.52 
Forfeited or expired(421,825)3.25 
Options outstanding June 30, 202315,448,835 $3.87 7.37$5,854,085 
Vested and exercisable at June 30, 20238,607,516 $4.64 6.17$2,406,178