XML 115 R29.htm IDEA: XBRL DOCUMENT v3.24.0.1
STOCK-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 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:
For the Year Ended December 31,
20232022
Research and development$1,936,746 $1,770,599 
General and administrative5,348,446 4,786,087 
Total$7,285,192 $6,556,686 
Schedule of Allocation of Stock-based Compensation Expense by Plan
For the Year Ended December 31,
20232022
Stock options$7,228,044 $6,471,367 
Employee stock purchase plan
57,148 85,319 
Total$7,285,192 $6,556,686 
Schedule of Assumptions Used to Compute Fair Value of Employee Option Granted
The fair value of employee options granted during the years ended December 31, 2023 and 2022, respectively, was estimated by utilizing the following assumptions:
For the Year Ended December 31,
20232022
Weighted
Average
Weighted
Average
Volatility84.52 %87.16 %
Expected term in years6.076.07
Dividend rate0.00 %0.00 %
Risk-free interest rate3.97 %2.21 %
Fair value of option on grant date$1.92 $2.12 
The fair value of nonemployee options granted and remeasured during the years ended December 31, 2023 and 2022, respectively, was estimated by utilizing the following assumptions:
For the Year Ended December 31,
20232022
Weighted
Average
Weighted
Average
Volatility83.73 %— %
Expected term in years5.320.00
Dividend rate0.00 %0.00 %
Risk-free interest rate3.86 %— %
Fair value of option on grant date$2.21 $— 
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 at December 31, 202110,776,758 $4.97 6.07$2,389,890 
Vested and exercisable at December 31, 20216,188,200 $5.98 4.63$1,531,907 
Granted4,575,641 2.89 9.26
Exercised(25,518)1.91 
Forfeited or expired
(2,365,643)5.56 
Options outstanding December 31, 202212,961,238 $4.13 7.42$62,158 
Vested and exercisable at December 31, 20226,742,890 $5.05 6.20$61,214 
Granted3,038,000 2.63 9.20
Exercised(146,346)2.76 
Forfeited or expired
(728,346)3.44 
Options outstanding December 31, 202315,124,546 $3.87 6.90$5,212,586 
Vested and exercisable at December 31, 20239,649,094 $4.47 5.97$2,464,620