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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 21,469 $ 123,469
Marketable securities 112,271 120,147
Accounts receivable 18,385 10,386
Inventory, net 2,949 4,388
Prepaid expenses and other current assets 12,559 21,170
Total current assets 167,633 279,560
Property, equipment and software, net 34,022 37,676
Other non current assets 16,388 18,009
Total assets 218,043 335,245
Current liabilities:    
Accounts payable 2,609 15,500
Accrued expenses and other current liabilities 31,763 33,755
Deferred revenue 11,565 20,646
Lease liabilities 4,940 4,677
Total current liabilities 50,877 74,578
Deferred revenue, net of current portion 6,163 0
Lease liabilities, net of current portion 18,264 20,791
Other non current liabilities 258 258
Total liabilities 75,562 95,627
Stockholders' equity:    
Common stock, $0.01 par value -- 125,000,000 shares authorized, 61,458,790 and 61,307,428 shares outstanding at June 30, 2022 and December 31, 2021, respectively 615 613
Additional paid-in capital 1,223,875 1,213,002
Accumulated other comprehensive loss (326) (61)
Accumulated deficit (1,081,683) (973,936)
Total stockholders' equity 142,481 239,618
Total liabilities and stockholders' equity $ 218,043 $ 335,245