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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Series A Non-Voting Convertible Preferred Stock
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Balance at Dec. 31, 2022 $ 353,895   $ 6 $ 581,237 $ (1,123) $ (226,225)
Balance, shares at Dec. 31, 2022     56,980,845      
Issuance of common stock from at-the-market offering, net of commissions and offering expenses 48,408     48,408    
Issuance of common stock from at-the-market offering, net of commissions and offering expenses, shares     1,176,470      
Issuance of common stock upon exercise of stock options 4,273     4,273    
Issuance of common stock upon exercise of stock options, shares     770,934      
Issuance of common stock upon vesting of restricted common stock, shares     33,917      
Shares issued under employee stock purchase plan 214     214    
Shares issued under employee stock purchase plan, shares     9,765      
Stock-based compensation expense 22,443     22,443    
Unrealized gain on marketable securities 544       544  
Foreign currency translation 72       72  
Net loss (146,209)         (146,209)
Balance at Sep. 30, 2023 283,640   $ 6 656,575 (507) (372,434)
Balance, shares at Sep. 30, 2023     58,971,931      
Balance at Dec. 31, 2022 353,895   $ 6 581,237 (1,123) (226,225)
Balance, shares at Dec. 31, 2022     56,980,845      
Balance at Dec. 31, 2023 243,923   $ 6 663,154 (50) (419,187)
Balance, shares at Dec. 31, 2023     59,239,113      
Balance at Jun. 30, 2023 327,807   $ 6 646,918 (710) (318,407)
Balance, shares at Jun. 30, 2023     58,713,982      
Issuance of common stock upon exercise of stock options 1,649     1,649    
Issuance of common stock upon exercise of stock options, shares     249,257      
Issuance of common stock upon vesting of restricted common stock, shares     8,692      
Stock-based compensation expense 8,008     8,008    
Unrealized gain on marketable securities 192       192  
Foreign currency translation 11       11  
Net loss (54,027)         (54,027)
Balance at Sep. 30, 2023 283,640   $ 6 656,575 (507) (372,434)
Balance, shares at Sep. 30, 2023     58,971,931      
Balance at Dec. 31, 2023 243,923   $ 6 663,154 (50) (419,187)
Balance, shares at Dec. 31, 2023     59,239,113      
Issuance of preferred stock from private placement, net of issuance costs 26,642     26,642    
Issuance of preferred stock from private placement, net of issuance costs, shares   70,601        
Issuance of common stock from private placement, net of issuance costs 95,046   $ 1 95,045    
Issuance of common stock from private placement, net of issuance costs, shares     11,174,000      
Issuance of common stock upon exercise of stock options $ 130     130    
Issuance of common stock upon exercise of stock options, shares 133,571   133,571      
Issuance of common stock upon vesting of restricted common stock, shares     65,544      
Shares issued under employee stock purchase plan $ 114     114    
Shares issued under employee stock purchase plan, shares     56,903      
Stock-based compensation expense 17,765     17,765    
Unrealized gain on marketable securities 741       741  
Foreign currency translation 182       182  
Net loss (105,771)         (105,771)
Balance at Sep. 30, 2024 278,772   $ 7 802,850 873 (524,958)
Balance, shares at Sep. 30, 2024   70,601 70,669,131      
Balance at Jun. 30, 2024 280,795   $ 7 770,745 (248) (489,709)
Balance, shares at Jun. 30, 2024     70,662,806      
Issuance of preferred stock from private placement, net of issuance costs 26,642     26,642    
Issuance of preferred stock from private placement, net of issuance costs, shares   70,601        
Issuance of common stock upon exercise of stock options 12     12    
Issuance of common stock upon exercise of stock options, shares     5,575      
Issuance of common stock upon vesting of restricted common stock, shares     750      
Stock-based compensation expense 5,451     5,451    
Unrealized gain on marketable securities 922       922  
Foreign currency translation 199       199  
Net loss (35,249)         (35,249)
Balance at Sep. 30, 2024 $ 278,772   $ 7 $ 802,850 $ 873 $ (524,958)
Balance, shares at Sep. 30, 2024   70,601 70,669,131