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Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 103,489 $ 175,688
Marketable securities (note 6) 534,696 376,086
Accounts receivable 2,482 2,765
Prepaid expenses and other current assets 8,509 4,481
Total current assets 649,176 559,020
Marketable securities, long-term (note 6) 113,989 0
Operating lease right-of-use asset, net (note 7) 7,559 8,056
Property, plant and equipment, net 4,575 4,466
Deferred tax assets 514 465
Total assets 775,813 572,007
Current liabilities:    
Accounts payable and accrued expenses (note 8) 15,537 13,717
Operating lease liability (note 7) 0 605
Total current liabilities 15,537 14,322
Operating lease liability, long-term (note 7) 7,157 7,652
Total liabilities 22,694 21,974
Shareholders’ equity:    
Preferred shares, without par value; unlimited shares authorized; issued and outstanding: nil (December 31, 2021 - 1,016,000) (note 9) 0 7,732
Common shares, without par value; unlimited shares authorized; issued and outstanding: 62,542,542 (December 31, 2021 - 51,634,752) (note 9) 1,064,698 783,170
Additional paid-in capital 136,728 117,495
Accumulated deficit (445,352) (357,374)
Accumulated other comprehensive loss (2,955) (990)
Total shareholders' equity 753,119 550,033
Total liabilities and shareholders’ equity 775,813 572,007
Commitments and contingencies (note 7 and note 11)