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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 164,649 $ 155,384
Available-for-sale securities 20,860 58,338
Prepaid expenses and other current assets 5,095 5,916
Total current assets 190,604 219,638
Operating lease, right-of-use assets 28,306 28,949
Property and equipment, net 8,607 9,657
Other non-current assets 238 175
Restricted cash 1,833 1,833
Total assets 229,588 260,252
Current liabilities:    
Accounts payable 5,595 3,238
Accrued expenses 12,384 16,691
Operating lease liabilities 1,863 1,897
Finance liabilities and finance lease liabilities 396 668
Other current liabilities 55 14
Total current liabilities 20,293 22,508
Operating lease liabilities, excluding current portion 23,912 24,279
Finance liabilities and finance lease liabilities, excluding current portion 1,596 1,703
Other non-current liabilities   96
Total liabilities 45,801 48,586
Commitments and contingencies (Note 13)
Preferred stock, $0.001 par value; 10,000,000 shares authorizedat March 31, 2023 and December 31, 2022; no shares issued and outstanding at March 31, 2023 and December 31, 2022
Common stock, $0.001 par value; 60,000,000 shares authorized at March 31, 2023 and December 31, 2022; 19,573,132 shares issued and outstanding at March 31, 2023 and 19,556,732 shares issued and outstanding at December 31, 2022 20 20
Additional paid-in capital 776,570 774,452
Accumulated other comprehensive income (loss) 5 (68)
Accumulated deficit (592,808) (562,738)
Total stockholders’ equity 183,787 211,666
Total liabilities and stockholders’ equity $ 229,588 $ 260,252