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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 82,985 $ 36,433
Short-term investments 381,075 188,679
Accounts receivable 4,420 5,163
Prepaid expenses and other current assets 5,741 3,477
Total current assets 474,221 233,752
Long-term investments 36,954 42,650
Property and equipment, net 13,346 4,530
Operating lease right-of-use assets and other assets 9,282 8,882
Total assets 533,803 289,814
Current liabilities:    
Accounts payable 8,050 8,160
Accrued liabilities 19,315 12,123
Short-term lease liability 2,785 4,616
Other current liabilities 1,049 1,124
Total current liabilities 31,199 26,023
Term loan, net 46,209 45,052
Convertible notes, net 89,504 84,205
Liability related to the sale of future royalties, net 166,068 143,276
Long-term deferred revenue 87,000 0
Long-term lease and other non-current liabilities 440 2,195
Total liabilities 420,420 300,751
Commitments and contingencies 0 0
Stockholders’ equity (deficit):    
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: 71,015,183 shares at December 31, 2020 and 59,172,124 shares at December 31, 2019 70 59
Additional paid-in capital 1,105,470 853,341
Accumulated other comprehensive income 149 679
Accumulated deficit (992,306) (865,016)
Total stockholders’ equity (deficit) 113,383 (10,937)
Total liabilities and stockholders’ equity (deficit) $ 533,803 $ 289,814