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Condensed Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Unaudited) - USD ($)
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Follow on public offering
Follow on public offering
Common Stock
Follow on public offering
Additional Paid-in Capital
At the market offering
At the market offering
Common Stock
At the market offering
Additional Paid-in Capital
Beginning balance at Dec. 31, 2021 $ 284,018,000 $ 56,000 $ 582,844,000 $ (298,641,000) $ (241,000)            
Beginning balance, shares at Dec. 31, 2021   53,031,978                  
Exercise of stock options 282,000   282,000                
Exercise of stock options (in shares)   91,044                  
Vesting of early exercised stock options 2,000   2,000                
Issuance of common stock, value           $ 107,622,000 $ 3,000 $ 107,619,000 $ 3,098,000   $ 3,098,000
Issuance of common stock, shares             3,250,000     126,522  
Stock-based compensation expense 4,099,000   4,099,000                
Unrealized gains (loss) on investments (592,000)       (592,000)            
Net Income (Loss) (38,986,000)     (38,986,000)              
Ending balance at Mar. 31, 2022 359,543,000 $ 59,000 697,944,000 (337,627,000) (833,000)            
Ending balance, shares at Mar. 31, 2022   56,499,544                  
Beginning balance at Dec. 31, 2021 284,018,000 $ 56,000 582,844,000 (298,641,000) (241,000)            
Beginning balance, shares at Dec. 31, 2021   53,031,978                  
Release of restricted stock units (861,000)                    
Net Income (Loss) (145,435,000)                    
Ending balance at Sep. 30, 2022 359,311,000 $ 64,000 803,980,000 (444,076,000) (657,000)            
Ending balance, shares at Sep. 30, 2022   60,572,692                  
Beginning balance at Mar. 31, 2022 359,543,000 $ 59,000 697,944,000 (337,627,000) (833,000)            
Beginning balance, shares at Mar. 31, 2022   56,499,544                  
Exercise of stock options 324,000 $ 1,000 323,000                
Exercise of stock options (in shares)   77,065                  
Vesting of early exercised stock options 2,000   2,000                
Issuance of common stock under employee stock purchase plan 550,000   550,000                
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)   36,879                  
Issuance of common stock, value           2,000   2,000 48,788,000 $ 2,000 48,786,000
Issuance of common stock, shares                   2,010,806  
Stock-based compensation expense 5,894,000   5,894,000                
Unrealized gains (loss) on investments (71,000)       (71,000)            
Net Income (Loss) (48,532,000)     (48,532,000)              
Ending balance at Jun. 30, 2022 366,500,000 $ 62,000 753,501,000 (386,159,000) (904,000)            
Ending balance, shares at Jun. 30, 2022   58,624,294                  
Exercise of stock options 1,757,000   1,757,000                
Exercise of stock options (in shares)   222,358                  
Vesting of early exercised stock options 2,000   2,000                
Issuance of common stock, value                 42,935,000 $ 2,000 42,933,000
Issuance of common stock, shares                   1,679,437  
Release of restricted stock units (861,000)   (861,000)                
Release of restricted stock units, shares   46,603                  
Stock-based compensation expense 6,648,000   6,648,000                
Unrealized gains (loss) on investments 247,000       247,000            
Net Income (Loss) (57,917,000)     (57,917,000)              
Ending balance at Sep. 30, 2022 359,311,000 $ 64,000 803,980,000 (444,076,000) (657,000)            
Ending balance, shares at Sep. 30, 2022   60,572,692                  
Beginning balance at Dec. 31, 2022 953,613,000 $ 82,000 1,476,018,000 (522,126,000) (361,000)            
Beginning balance, shares at Dec. 31, 2022   79,470,670                  
Exercise of stock options 502,000 $ 1,000 501,000                
Exercise of stock options (in shares)   100,964                  
Vesting of early exercised stock options 2,000   2,000                
Issuance of common stock, value                 41,787,000 $ 1,000 41,786,000
Issuance of common stock, shares                   1,041,536  
Release of restricted stock units (727,000)   (727,000)                
Release of restricted stock units, shares   27,681                  
Stock-based compensation expense 9,648,000   9,648,000                
Unrealized gains (loss) on investments 408,000       408,000            
Net Income (Loss) (60,462,000)     (60,462,000)              
Ending balance at Mar. 31, 2023 944,771,000 $ 84,000 1,527,228,000 (582,588,000) 47,000            
Ending balance, shares at Mar. 31, 2023   80,640,851                  
Beginning balance at Dec. 31, 2022 953,613,000 $ 82,000 1,476,018,000 (522,126,000) (361,000)            
Beginning balance, shares at Dec. 31, 2022   79,470,670                  
Release of restricted stock units (3,546,000)                    
Net Income (Loss) (221,465,000)                    
Ending balance at Sep. 30, 2023 1,402,716,000 $ 98,000 2,148,499,000 (743,591,000) (2,290,000)            
Ending balance, shares at Sep. 30, 2023   95,099,101                  
Beginning balance at Mar. 31, 2023 944,771,000 $ 84,000 1,527,228,000 (582,588,000) 47,000            
Beginning balance, shares at Mar. 31, 2023   80,640,851                  
Exercise of stock options 884,000   884,000                
Exercise of stock options (in shares)   69,951                  
Vesting of early exercised stock options 2,000   2,000                
Issuance of common stock under employee stock purchase plan 1,017,000   1,017,000                
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)   43,060                  
Issuance of common stock, value           $ 545,279,000 $ 13,000 $ 545,266,000      
Issuance of common stock, shares             13,030,000        
Release of restricted stock units (214,000)   (214,000)                
Release of restricted stock units, shares   28,671                  
Stock-based compensation expense 12,544,000   12,544,000                
Unrealized gains (loss) on investments (2,568,000)       (2,568,000)            
Net Income (Loss) (68,339,000)     (68,339,000)              
Ending balance at Jun. 30, 2023 1,433,376,000 $ 97,000 2,086,727,000 (650,927,000) (2,521,000)            
Ending balance, shares at Jun. 30, 2023   93,812,533                  
Exercise of stock options 2,156,000 $ 144,818 2,156,000                
Vesting of early exercised stock options 2,000   2,000                
Issuance of common stock, value                 $ 49,000,000 $ 1,000 $ 48,999,000
Issuance of common stock, shares                   1,054,407  
Release of restricted stock units (2,605,000)   (2,605,000)                
Release of restricted stock units, shares   87,343                  
Stock-based compensation expense 13,220,000   13,220,000                
Unrealized gains (loss) on investments 231,000       231,000            
Net Income (Loss) (92,664,000)     (92,664,000)              
Ending balance at Sep. 30, 2023 $ 1,402,716,000 $ 98,000 $ 2,148,499,000 $ (743,591,000) $ (2,290,000)            
Ending balance, shares at Sep. 30, 2023   95,099,101