v3.22.2.2
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Cash flows from operating activities:    
Net loss $ (50,058) $ (40,418)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 1,306 1,123
Stock-based compensation 10,189 5,743
Amortization of premiums and discounts on marketable securities (45) 1,453
Amortization of debt discount and issuance costs and other non-cash interest 158 0
Loss on disposition of fixed assets 4 0
Changes in operating assets and liabilities    
Prepaid expenses, other current assets and other long-term assets (5,245) 356
Accounts payable, accrued and other current liabilities 1,614 1,157
Operating lease liabilities (886) (770)
Net cash used in operating activities (42,963) (31,356)
Cash flows from investing activities:    
Purchases of property and equipment (1,235) (50)
Purchases of marketable securities (238,635) (43,153)
Maturities of marketable securities 157,139 97,250
Net cash (used in) provided by investing activities (82,731) 54,047
Cash flows from financing activities:    
Proceeds from issuance of common stock and warrants, net of issuance costs 126,542 11,725
Proceeds from issuance of common stock under equity incentive plans 813 1,504
Net cash provided by financing activities 127,355 13,229
Effect of exchange rate changes on cash and cash equivalents (90) (54)
Net increase in cash and cash equivalents 1,571 35,866
Cash and cash equivalents at the beginning of period 62,882 21,228
Cash and cash equivalents at the end of period 64,453 57,094
Supplemental disclosures of noncash investing and financing information:    
Reclassification of employee stock liability to equity upon vesting 0 21
Unpaid offering costs in accrued liabilities 0 25
Purchases of property and equipment in accounts payable 81 178
Supplemental disclosures    
Cash paid for interest $ 678 $ 0