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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 45,204 | $ 100,444
Marketable securities | 35,798 | 177,188
Interest receivable | 403 | 794
Accounts receivable | 923 | 3,678
Prepaid expenses and other current assets | 12,000 | 18,223
Total current assets | 94,328 | 300,327
Marketable securities, non-current | 0 | 29,845
Property and equipment, net | 26,874 | 63,531
Intangible assets | 0 | 50,729
Goodwill | 0 | 37,552
Operating lease right-of-use assets | 25,991 | 62,002
Other non-current assets | 16,627 | 17,023
Restricted cash | 1,500 | 1,500
Total assets | 165,320 | 562,509
Current liabilities: |  |
Accounts payable | 15,259 | 22,418
Accrued compensation and employee benefits | 8,918 | 21,506
Other accrued liabilities | 23,554 | 16,007
Deferred revenues | 0 | 51,780
Total current liabilities | 47,731 | 111,711
Deferred revenues, non-current | 0 | 109,377
Long-term portion of lease liabilities | 33,515 | 38,986
Deferred income tax | 0 | 6,270
Other non-current liabilities | 1,187 | 1,207
Total liabilities | 82,433 | 267,551
Commitments and contingencies |  |
Stockholders’ equity: |  |
Preferred stock, $0.01 par value, 5,000,000 shares authorized, and no shares issued or outstanding | 0 | 0
Common stock, $0.01 par value; 640,000,000 shares authorized; 178,133,548 and 166,793,320 shares issued and outstanding at December 31, 2023 and 2022, respectively | 1,781 | 1,668
Additional paid-in capital | 1,492,077 | 1,450,239
Accumulated deficit | (1,406,376) | (1,148,545)
Accumulated other comprehensive loss | (4,595) | (8,404)
Total stockholders’ equity | 82,887 | 294,958
Total liabilities and stockholders’ equity | $ 165,320 | $ 562,509

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