Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity

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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Ordinary Shares
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2022 $ 27,999 $ 126 $ 451,150 $ (422,927) $ (350)
Beginning balance (in shares) at Dec. 31, 2022   12,598,641      
Issuance of ordinary shares, net 435 $ 4 431    
Issuance of ordinary shares, net (in shares)   429,762      
Share-based compensation expense 503   503    
Net loss (22,132)     (22,132)  
Unrealized gain on available-for-sale securities 324       324
Ending balance at Jun. 30, 2023 7,129 $ 130 452,084 (445,059) (26)
Ending balance (in shares) at Jun. 30, 2023   13,028,403      
Beginning balance at Dec. 31, 2022 27,999 $ 126 451,150 (422,927) (350)
Beginning balance (in shares) at Dec. 31, 2022   12,598,641      
Net loss (38,371)        
Ending balance at Dec. 31, 2023 (6,403) $ 135 454,759 (461,298) 1
Ending balance (in shares) at Dec. 31, 2023   13,499,003      
Beginning balance at Mar. 31, 2023 18,957 $ 128 451,776 (432,816) (131)
Beginning balance (in shares) at Mar. 31, 2023   12,805,833      
Issuance of ordinary shares, net 200 $ 2 198    
Issuance of ordinary shares, net (in shares)   222,570      
Share-based compensation expense 110   110    
Net loss (12,243)     (12,243)  
Unrealized gain on available-for-sale securities 105       105
Ending balance at Jun. 30, 2023 7,129 $ 130 452,084 (445,059) (26)
Ending balance (in shares) at Jun. 30, 2023   13,028,403      
Beginning balance at Dec. 31, 2023 (6,403) $ 135 454,759 (461,298) 1
Beginning balance (in shares) at Dec. 31, 2023   13,499,003      
Issuance of ordinary shares, net 7,355 $ 31 7,324    
Issuance of ordinary shares, net (in shares)   3,055,882      
Exercise of share options $ 29   29    
Exercise of share options, (in shares) 29,144 29,144      
Share-based compensation expense $ 206   206    
Net loss (12,098)     (12,098)  
Unrealized gain on available-for-sale securities (2)       (2)
Ending balance at Jun. 30, 2024 (10,913) $ 166 462,318 (473,396) (1)
Ending balance (in shares) at Jun. 30, 2024   16,584,029      
Beginning balance at Mar. 31, 2024 (6,150) $ 165 462,084 (468,399)  
Beginning balance (in shares) at Mar. 31, 2024   16,470,414      
Issuance of ordinary shares, net 109 $ 1 108    
Issuance of ordinary shares, net (in shares)   84,471      
Exercise of share options 29   29    
Exercise of share options, (in shares)   29,144      
Share-based compensation expense 97   97    
Net loss (4,997)     (4,997)  
Unrealized gain on available-for-sale securities (1)       (1)
Ending balance at Jun. 30, 2024 $ (10,913) $ 166 $ 462,318 $ (473,396) $ (1)
Ending balance (in shares) at Jun. 30, 2024   16,584,029