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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Cash flows used in operating activities    
Net loss $ (15,247) $ (44,053)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 132 134
Share-based compensation 13,843 10,439
Stock issued for services 23 22
Amortization of premiums and accretion of discounts on investment securities, net (2,343) (1,737)
Changes in operating assets and liabilities:    
Accounts receivable, net (17,139) (6,356)
Inventory (499) (4,421)
Prepaid expenses and other assets (24,000) (10,557)
Accounts payable 80 (1,954)
Accrued and other current liabilities 5,305 1,410
Accrued customer programs 16,799 4,271
Accrued employee benefits (10,955) (6,340)
Operating lease liabilities, net (115) (924)
Net cash used in operating activities (34,116) (60,066)
Cash flows provided by (used in) investing activities    
Purchases of investments (81,046) (108,457)
Maturities of investments 97,225 91,995
Net cash provided by (used in) investing activities 16,179 (16,462)
Cash flows provided by financing activities    
Proceeds from exercise of stock options 9,989 3,640
Net cash provided by financing activities 9,989 3,640
Net (decrease) increase in cash, cash equivalents, and restricted cash (7,948) (72,888)
Cash, cash equivalents, and restricted cash at beginning of period 149,517 150,365
Cash, cash equivalents, and restricted cash at end of period $ 141,569 $ 77,477