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Net Loss Per Share Attributable to Common Stockholders
 3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Net Loss Per Share Attributable to Common Stockholders
12. Net Loss Per Share Attributable to Common Stockholders
The following outstanding shares of potentially dilutive securities were excluded from the computation of the diluted net loss per share attributable to common stockholders for the periods presented because their effect would have been anti-dilutive:
 
    
Three Months Ended March 31,
  
    
2021
     
2020
  
Redeemable convertible preferred stock
      —          8,191,580  
Common stock options
      6,308,582        550,176  
Unvested common stock
      76,293        5,095  
Common stock warrants
      —          9,154  
ESPP withholdings
      19,126        —    
    
 
 
     
 
 
  
Total potentially dilutive shares
      6,404,001        8,756,005