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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 76,290 | $ 76,333
Collaboration receivable, current - related party | 50,586 | 49,152
Other receivables | 2,696 | 1,545
Prepaid expenses and other current assets | 2,055 | 4,178
Total current assets | 131,627 | 131,208
Property and equipment, net | 0 | 2
Operating lease right of use assets | 3,381 | 4,155
Collaboration receivable, non-current - related party | 0 | 46,590
Other assets | 153 | 435
Total assets | 135,161 | 182,390
Current liabilities: |  |
Accounts payable | 6,090 | 1,378
Accrued expenses and other current liabilities | 15,328 | 6,557
Operating lease liabilities | 1,739 | 1,718
Income taxes payable | 97 | 387
Deferred revenue, current | 788 | 2,132
Deferred revenue, current - related party | 25,054 | 24,981
Total current liabilities | 49,096 | 37,153
Non-current operating lease liabilities | 2,883 | 3,825
Deferred revenue, non-current | 11,850 | 10,825
Deferred revenue, non-current - related party | 5,812 | 23,606
Other long-term liabilities | 13 | 87
Total liabilities | 69,654 | 75,496
Commitments and contingencies (Note 7) |  |
Stockholders' equity: |  |
Preferred stock, $0.001 par value; 10,000,000 shares authorized, no shares issued and outstanding as of September 30, 2024 and December 31, 2023 | 0 | 0
Common stock, $0.001 par value; 120,000,000 shares authorized as of September 30, 2024 and December 31, 2023; 54,314,415 shares issued and outstanding as of September 30, 2024 and 52,999,680 shares issued and outstanding as of December 31, 2023 | 54 | 53
Additional paid-in capital | 504,203 | 497,913
Accumulated deficit | (438,750) | (391,072)
Total stockholders' equity | 65,507 | 106,894
Total liabilities and stockholders' equity | $ 135,161 | $ 182,390

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