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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Summary of Stock-Based Compensation Expense

The stock-based compensation expense included in the Company’s condensed statement of operations and comprehensive loss for the three months ended March 31, 2024 and 2023 is as follows (in thousands):

 

 

 

Three Months Ended March 31,

 

 

 

2024

 

 

2023

 

Research and development

 

$

2,292

 

 

$

2,012

 

General and administrative

 

 

2,749

 

 

 

2,825

 

 

$

5,041

 

 

$

4,837

 

 

Summary of Stock Option Activity under 2019 Plan and 2021 Plan

The following table summarizes stock option activity under the 2019 Plan and the 2021 Plan for the three months ended March 31, 2024.

 

 

 

Shares

 

Outstanding at December 31, 2023

 

 

30,649,239

 

Granted

 

 

8,736,679

 

Exercised

 

 

(37,000

)

Forfeited

 

 

(1,124,678

)

Outstanding at March 31, 2024

 

 

38,224,240

 

Exercisable at March 31, 2024

 

 

11,877,245