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Net Loss per Share
 9 Months Ended 12 Months Ended
Sep. 30, 2024
Dec. 31, 2023
Earnings Per Share [Abstract]    
Net Loss per Share
10. Net Loss per Share
The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company:
 
 
 
Three Months Ended
September 30,
 
 
Nine Months Ended
September 30,
 
(in thousands, except share and per share data)
 
2024
 
 
2023
 
 
2024
 
 
2023
 
Numerator:
        
Net loss – basic and diluted
  
$
(4,126
) 
  
$
(44,272
) 
  
$
(40,501
) 
  
$
(130,722
) 
Denominator:
        
Weighted-average common shares outstanding – basic and diluted
    
5,017,370
      
4,951,921
      
5,003,200
      
4,377,535
  
 
 
 
    
 
 
    
 
 
    
 
 
  
Net loss per share – basic and diluted
  
$
(0.82
)
  
$
(8.94
)
  
$
(8.10
)
  
$
(29.86
)
 
 
 
    
 
 
    
 
 
    
 
 
  
Based on the amounts outstanding at September 30, 2024 and 2023, the Company excluded the following potential shares of common stock from the computation of diluted net loss per share attributable to common stockholders for the three and nine months ended September 30, 2024 and 2023, because including them would have had an anti-dilutive effect. Therefore, the weighted-average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same.
 
 
  
September 30,
 
 
  
2024
 
  
2023
 
Options to purchase common stock
     
264,001
       
454,144
  
Unvested restricted stock
     
48,700
       
148,277
  
12. Net Loss per Share
The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company:
 
 
  
Years Ended December 31
,
 
(in thousands, except share and per share data)
  
2023
 
  
2022
 
Numerator:
      
Net loss – basic and diluted
   
$
(190,418
) 
   
$
(168,710
) 
Denominator:
      
Weighted-average common shares outstanding – basic and diluted
     
4,524,226
       
3,332,819
  
  
 
 
     
 
 
  
Net loss per share – basic and diluted
   
$
(42.09
)
   
$
(50.60
)
  
 
 
     
 
 
  
Based on the amounts outstanding at December 31, 2023 and 2022, the Company excluded the following potential shares of common stock from the computation of diluted net loss per share attributable to common stockholders for the years ended December 31, 2023 and 2022, because including them would have had an anti-dilutive effect. Therefore, the weighted-average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same.
 
 
  
Years Ended
December 31
,
 
 
  
2023
 
  
2022
 
Options to purchase common stock
     
453,902
       
344,469
  
Unvested restricted stock
     
141,516
       
97,352