v3.26.1
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-Based Payment Arrangement, Expensed and Capitalized, Amount The Company recorded stock-based compensation expense in the following expense categories in its accompanying condensed consolidated statements of operations (in thousands):
Three Months Ended
June 30,
Six Months Ended
June 30,
2026202520262025
Research and development expenses$2,689 $1,575 $4,480 $3,146 
General and administrative expenses5,173 1,833 7,011 4,310 
Total expense$7,862 $3,408 $11,491 $7,456 
Schedule of Share-Based Payment Arrangement, Option, Activity
The following table summarizes the option activity:
OptionsNumber
of
shares
Weighted
average
exercise price
per share
Weighted
average
remaining
contractual
term (in years)
Outstanding at December 31, 20252,088,550$23.49 7.91
Granted988,533$19.52 
Exercised(22,698)$9.84 
Expired/Forfeited(77,191)$24.64 
Outstanding at June 30, 20262,977,194$22.25 8.12
Exercisable at June 30, 20261,177,772$24.08 6.72
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions
The fair value of each option was estimated on the grant date using the weighted-average assumptions in the table below:
Three Months Ended
June 30,
Six Months Ended
June 30,
2026202520262025
Expected volatility
96.14%-97.08%
94.60%-96.19%
96.14%-97.43%
93.99%-96.49%
Risk-free interest rate
4.03%-4.21%
3.86%-4.05%
3.64%-4.21%
3.86% - 4.42%
Expected life (in years)
6.03-6.07
5.27-6.08
5.27-6.98
5.27 - 6.96
Expected dividend yield— — — — 
Schedule of Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity
A summary of the Company’s restricted stock unit (“RSU”) activity and related information for the six months ended June 30, 2026 is as follows:
RSUsNumber of SharesWeighted Average Grant Date Fair Value
Unvested at December 31, 2025256,361 $26.16 
Restricted stock units granted150,430 $17.64 
Restricted stock units vested(104,662)$28.16 
Restricted stock units forfeited(14,207)$23.15 
Unvested at June 30, 2026287,922 $21.13 
Schedule of Share-Based Payment Arrangement, Performance Shares, Activity
A summary of the Company’s performance stock unit (“PSU”) activity and related information for the six months ended June 30, 2026 is as follows:
PSUsNumber of SharesWeighted Average Grant Date Fair Value
Unvested at December 31, 2025252,124 $36.06 
Performance stock units granted— $— 
Performance stock units vested— $— 
Performance stock units forfeited— $— 
Unvested at June 30, 2026252,124 $36.06