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v3.21.2

Consolidated statements of cash flows - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Operating activities |  |
Net loss | $ (492,646) | $ (192,358)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Allowance for doubtful accounts | 5 | 2
Inventory write-down | 402 |
Depreciation and amortization expenses | 4,612 | 3,253
Amortization of deferred income | (234) | (234)
Share-based compensation | 28,106 | 20,405
Noncash research and development expenses | 62,250 |
Share of loss from equity method investment | 548 | 671
Loss from fair value changes of equity investment with readily determinable fair value | 9,930 | 0
Loss on disposal of property and equipment | 12 | 1
Noncash lease expenses | 4,595 | 3,251
Changes in operating assets and liabilities: |  |
Accounts receivable | (15,858) | (3,704)
Inventories | 248 | (3,631)
Prepayments and other current assets | (6,142) | (3,564)
Long term deposits | (39) | (474)
Value added tax recoverable | (1,249) | (6,845)
Accounts payable | (11,235) | 5,217
Other current liabilities | 23,429 | (4,981)
Operating lease liabilities | (3,834) | (2,335)
Deferred income | 863 | 13,606
Net cash used in operating activities | (396,237) | (171,720)
Cash flows from investing activities: |  |
Purchases of short-term investments | (170,000) | (749,676)
Proceeds from maturity of short-term investment | 743,902 |
Purchase of property and equipment | (11,920) | (4,835)
Purchase of intangible assets | (539) | (370)
Payment for investment in equity investee | (30,000) |
Disposal of property and equipment | 3 |
Net cash provided by (used in) investing activities | 531,446 | (754,881)
Cash flows from financing activities: |  |
Repayment of short-term borrowings |  | (4,292)
Proceeds from exercises of stock options | 6,907 | 4,083
Proceeds from issuance of ordinary shares upon public offerings | 818,874 | 1,025,970
Payment of public offering costs | (1,836) | (1,275)
Employee taxes paid related to net share settlement of equity awards | (3,467) |
Net cash provided by financing activities | 820,478 | 1,024,486
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | 695 | 2,062
Net increase in cash, cash equivalents and restricted cash | 956,382 | 99,947
Cash, cash equivalents and restricted cash - beginning of period | 442,859 | 76,442
Cash, cash equivalents and restricted cash - end of period | 1,399,241 | 176,389
Supplemental disclosure on non-cash investing and financing activities: |  |
Payables for purchase of property and equipment | 1,797 | 2,334
Payables for intangible assets | 24 | 21
Payables for public offering costs |  | 4,909
Supplemental disclosure of cash flow information: |  |
Cash and cash equivalents | 1,398,498 | 175,879
Restricted cash, non-current | 743 | 510
Total cash and cash equivalents and restricted cash | $ 1,399,241 | 176,389
Interest paid |  | $ 157

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