XML 40 R5.htm IDEA: XBRL DOCUMENT v3.20.4
Consolidated Statement of Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Convertible Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Beginning Balance at Dec. 31, 2017 $ (52,033)   $ 1 $ 10,153   $ (62,187)
Convertible preferred stock, beginning balance (in shares) at Dec. 31, 2017   36,001,203        
Convertible preferred stock, beginning balance at Dec. 31, 2017   $ 77,485        
Beginning balance (in shares) at Dec. 31, 2017     13,776,153      
Issuance of Series E convertible preferred stock, net of issuance costs   $ 133,035        
Issuance of Series E convertible preferred stock, net of costs (in shares)   9,373,633        
Forfeiture/Cancellation of restricted common stock     (11,324)      
Stock-based compensation 6,925     6,925    
Unrealized gain (loss) on marketable securities (42)       $ (42)  
Net loss and comprehensive loss (52,248)         (52,248)
Ending Balance at Dec. 31, 2018 (97,398)   $ 1 17,078 (42) (114,435)
Convertible preferred stock, ending balance (in shares) at Dec. 31, 2018   45,374,836        
Convertible preferred stock, ending balance at Dec. 31, 2018   $ 210,520        
Ending balance (in shares) at Dec. 31, 2018     13,764,829      
Conversion of convertible preferred stock into common stock 210,521 $ (210,520) $ 5 210,516    
Conversion of convertible preferred stock into common stock (in shares)   (45,374,836) 45,374,836      
Issuance of common stock upon initial public offering, net of issuance costs 168,223   $ 1 168,222    
Issuance of common stock upon initial public offering, net of issuance costs (in shares)     9,739,541      
Exercise of stock options 1,519     1,519    
Exercise of stock options (in shares)     180,287      
Purchase of common stock under employee stock purchase plan 798     798    
Purchase of common stock under employee stock purchase plan (in shares)     50,353      
Forfeiture/Cancellation of restricted common stock     (56,973)      
Stock-based compensation 16,281     16,281    
Unrealized gain (loss) on marketable securities 184       184  
Net loss and comprehensive loss (105,385)         (105,385)
Ending Balance at Dec. 31, 2019 $ 194,743   $ 7 414,414 142 (219,820)
Ending balance (in shares) at Dec. 31, 2019 69,052,873   69,052,873      
Issuance of common stock upon initial public offering, net of issuance costs $ 224,511   $ 1 224,510    
Issuance of common stock upon initial public offering, net of issuance costs (in shares)     9,602,500      
Exercise of stock options 6,331     6,331    
Exercise of stock options (in shares)     655,772      
Purchase of common stock under employee stock purchase plan 1,179     1,179    
Purchase of common stock under employee stock purchase plan (in shares)     86,870      
Forfeiture/Cancellation of restricted common stock     (81,754)      
Stock-based compensation 30,522     30,522    
Unrealized gain (loss) on marketable securities 472       472  
Net loss and comprehensive loss (190,228)         (190,228)
Ending Balance at Dec. 31, 2020 $ 267,530   $ 8 $ 676,956 $ 614 $ (410,048)
Ending balance (in shares) at Dec. 31, 2020 79,316,261   79,316,261