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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 112,666 $ 82,985
Short-term investments 358,972 381,075
Accounts receivable 51,819 4,420
Prepaid expenses and other current assets 12,215 5,741
Total current assets 535,672 474,221
Long-term investments 152,050 36,954
Property and equipment, net 73,271 13,346
Operating lease right-of-use assets 73,138 2,924
Other assets 7,188 6,358
Total assets 841,319 533,803
Current liabilities:    
Accounts payable 21,087 8,050
Accrued liabilities 34,370 19,315
Short-term operating lease liabilities 14,863 2,785
Other current liabilities 1,540 1,049
Total current liabilities 71,860 31,199
Term loan, net 47,367 46,209
Convertible notes, net 95,471 89,504
Liabilities related to revenue participation right purchase agreement, net 179,072 166,068
Long-term deferred revenue 87,000 87,000
Long-term operating lease liabilities 112,229 440
Other non-current liabilities 4,457 0
Total liabilities 597,456 420,420
Commitments and contingencies 0 0
Stockholders’ equity:    
Preferred stock, $0.001 par value: Authorized: 10,000,000 shares; Issued and outstanding: none 0 0
Common stock, $0.001 par value: Authorized: 163,000,000 shares; Issued and outstanding: 84,799,542 shares at December 31, 2021 and 71,015,183 shares at December 31, 2020 84 70
Additional paid-in capital 1,452,268 1,105,470
Accumulated other comprehensive (loss) income (869) 149
Accumulated deficit (1,207,620) (992,306)
Total stockholders’ equity 243,863 113,383
Total liabilities and stockholders’ equity $ 841,319 $ 533,803