v3.26.1
Stock-based compensation (Tables)
 6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Allocation of Share-based Compensation
Total stock-based compensation expense related to the Company’s stock-based awards was recorded in the condensed consolidated statements of operations and comprehensive loss as follows (in thousands):
For the Three Months Ended June 30,For the Six Months Ended June 30,
2026202520262025
Research and development$2,332 $2,015 $4,346 $4,038 
Selling, general and administrative2,913 2,737 5,279 5,659 
Total stock-based compensation expense$5,245 $4,752 $9,625 $9,697 
Schedule of Stock Option Activity Activity for stock options is shown below:
Number of OptionsWeighted Average Exercise Price per ShareWeighted Average Remaining Contractual Term (in years)Aggregate Intrinsic Value (in
thousands $)
Outstanding at December 31, 202520,716,511 $3.27 7.5
Granted6,620,200 3.16 
Exercised(2,260,119)2.76 6,330
Canceled/Forfeited(1,876,559)3.10 
Expired(59,622)7.80 
Outstanding at June 30, 202623,140,411 3.29 7.9192,964 
Exercisable at June 30, 202611,371,137 $3.44 6.7$93,578 
Schedule of Non-vested Share Activity Activity for restricted stock units is shown below:
Number of SharesWeighted Average Grant Date Fair Value
Unvested as of December 31, 20253,789,634 $3.32 
Granted2,179,050 3.02 
Vested(934,358)3.49 
Forfeitures(529,658)2.91 
Unvested as of June 30, 20264,504,668 $3.18