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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 93,372 $ 101,855
Marketable securities 97,122 178,083
Prepaid expenses and other current assets 8,643 8,256
Total current assets 199,137 288,194
Property and equipment, net 3,549 4,600
Operating lease right-of-use asset 17,975 11,417
Restricted cash 2,407 2,407
Other long-term assets 3,797 4,417
Total assets 226,865 311,035
Current liabilities:    
Accounts payable 3,315 3,465
Accrued expenses 21,886 20,449
Operating lease liability 6,198 7,408
Short-term debt 1,588 1,334
Other current liabilities   85
Total current liabilities 32,987 32,741
Long-term portion of operating lease liability 11,773 4,392
Long-term debt 48,485 48,684
Total liabilities 93,245 85,817
Commitments and contingencies (Note 9)
Stockholders' equity:    
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued and outstanding at June 30, 2024 and December 31, 2023
Common stock, $0.001 par value; 300,000,000 shares authorized; 79,992,068 and 75,979,495 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively 80 76
Additional paid-in capital 925,376 901,471
Accumulated other comprehensive income (loss) (54) 92
Accumulated deficit (791,782) (676,421)
Total stockholders' equity 133,620 225,218
Total liabilities and stockholders' equity $ 226,865 $ 311,035