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Condensed Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 52,057 $ 108,297
Restricted cash 822 822
Marketable securities, current 149,861 132,757
Prepaid expenses and other current assets 2,556 5,130
Total current assets 205,296 247,006
Property and equipment, net 10,822 10,955
Marketable securities, noncurrent 36,184 2,495
Right-of-use assets 8,545 9,539
Other assets 180 313
Total assets 261,027 270,308
Current liabilities:    
Accounts payable 1,678 2,996
Accrued expenses 9,038 7,308
Operating lease liabilities, current 0 528
Total current liabilities 10,716 10,832
Operating lease liabilities, noncurrent 12,699 13,448
Total liabilities 23,415 24,280
Stockholders’ equity:    
Preferred stock, $0.00001 par value, 5,000,000 shares authorized at September 30, 2023 and December 31, 2022. No shares issued or outstanding at September 30, 2023 and December 31, 2022.
Common stock, $0.00001 par value, 1,000,000,000 shares authorized; 51,157,636 and 45,771,332 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively.
Additional paid-in capital 532,214 487,516
Accumulated deficit (294,247) (241,043)
Accumulated other comprehensive loss (355) (445)
Total stockholders’ equity 237,612 246,028
Total liabilities and stockholders’ equity $ 261,027 $ 270,308