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Shareholders’ equity (Tables)
3 Months Ended
Mar. 31, 2025
Stockholders' Equity Note [Abstract]  
Schedule of stock based compensation expense
The table below summarizes information about the Company’s stock-based compensation for the three months ended March 31, 2025 and 2024 and the expense recognized in the condensed consolidated statements of operations:
Three Months Ended March 31,
20252024
(in thousands, except share and per share data)
Stock options
Options granted during period3,943,722 3,738,800 
Weighted average exercise price$3.31 $2.40 
Restricted stock units (RSUs)
Restricted stock units granted during period901,900 1,316,200 
Grant date fair value$3.29 $2.40 
Stock compensation expense
Research and development$555 $1,041 
General and administrative738 973 
Total stock compensation expense$1,293 $2,014