v3.26.1
Stock-based Compensation (Tables)
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense
Total compensation cost recognized for all stock-based compensation awards in the condensed consolidated statements of operations was as follows (in thousands):
Three Months Ended
June 30,
Six Months Ended
June 30,
2026202520262025
Research and development$644 $863 $1,187 $1,770 
General and administrative1,549 1,801 3,108 3,873 
Total stock-based compensation expense$2,193 $2,664 $4,295 $5,643 
Schedule of Changes in Unvested Restricted Stock
The following is a summary of restricted stock units activity for the six months ended June 30, 2026:
SharesWeighted Average Grant Date Fair Value Per Share
Unvested restricted stock units as of December 31, 2025595,730$9.11 
Issued$— 
Vested(88,306)$10.22 
Forfeited(78,990)$8.42 
Unvested restricted stock units as of June 30, 2026428,434$9.11 
Schedule of Stock Option Activity
The following is a summary of stock option activity for the six months ended June 30, 2026:
SharesWeighted Average
Exercise Price
Remaining
Contractual Life (years)
Aggregate Intrinsic
Value
Outstanding at December 31, 20258,403,694$8.37 7.65$1,395 
Granted4,789,807 $2.53 
Exercised(20,040)$1.80 
Expired(439,869)$18.75 
Forfeited(446,567)$2.66 
Outstanding at June 30, 202612,287,025 $5.94 8.27$9,322 
Vested and expected to vest at June 30, 202612,287,025 $5.94 8.27$9,322 
Exercisable at June 30, 20264,510,084 $11.62 6.67$1,926