v3.25.1
Stock-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of stock option activity during the period
The following table summarizes stock option activity for the three months ended March 31, 2025 (in thousands, except share and per share amounts):
Number of outstanding optionsWeighted
average
exercise
price		Weighted
average
remaining
contractual
term in years		Aggregate intrinsic value
Balance as of December 31, 20242,119,425$7.87 7.98$751 
Granted104,096$5.21 
Forfeited/Cancelled(8,212)$6.83 
Exercises(1)$2.12 $— 
Balance as of March 31, 20252,215,308$7.75 7.60$453 
Vested and expected to vest as of March 31, 20252,215,308$7.75 7.60$453 
Exercisable as of March 31, 20251,284,481$6.99 6.94$453 
Schedule of restricted stock award activity during the period
A summary of restricted stock award activity for the three months ended March 31, 2025 is as follows:
Number of sharesWeighted average
fair value
Unvested as of December 31, 202415,943$1.75 
Vested(11,666)$1.95 
Unvested as of March 31, 20254,277$1.20 
Schedule of Stock-Based Compensation Expense
The following table presents the components and classification of stock-based compensation expense for the three months ended March 31, 2025 and 2024 as follows (in thousands):
Three Months Ended March 31,
20252024
Options$830 $825 
Restricted stock awards31 31 
Total$861 $856 
Research and development$476 $506 
General and administrative385 350 
Total$861 $856