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v3.23.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Operating activities: |  |
Net loss | $ (36,004) | $ (54,648)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation | 1,955 | 2,066
Stock-based compensation | 4,517 | 2,316
Non-cash operating lease expense | 1,314 | 1,231
Amortization of premium on marketable securities, net | 108 | 105
Change in fair value of warrant liabilities | (7,890) | (71)
Other expense related to the commitment shares issued to Lincoln Park | 273 | 0
Transaction costs allocated to warrants in connection with Business Combination | 0 | 409
Changes in operating assets and liabilities: |  |
Accounts receivable | (1,978) | 0
Prepaid expenses and other current assets | (50) | (2,296)
Other assets | (379) | (510)
Accounts payable | (2,038) | 857
Accrued and other liabilities | (1,782) | 3,789
Operating lease liabilities | (2,191) | (2,061)
Net cash used in operating activities | (44,145) | (48,813)
Investing activities: |  |
Purchases of property and equipment | (728) | (1,269)
Purchases of marketable securities | (29,600) | (91,739)
Proceeds from sales of marketable securities | 0 | 1,100
Proceeds from maturities of marketable securities | 68,637 | 14,200
Net cash provided by (used in) investing activities | 38,309 | (77,708)
Financing activities: |  |
Proceeds from issuance of common stock upon Business Combination and PIPE Financing, net of transaction costs | 0 | 124,220
Proceeds from issuance of common stock upon exercise of stock options | 0 | 411
Proceeds from issuance of common stock upon employee stock plan purchases | 143 | 0
Repurchase and cancelation of common stock | (2,607) | 0
Repurchase of warrants | (85) | 0
Repurchase of early exercised stock options | (16) | (1)
Net cash (used in) provided by financing activities | (2,565) | 124,630
Net decrease in cash, cash equivalents and restricted cash | (8,401) | (1,891)
Cash, cash equivalents and restricted cash at beginning of year | 33,496 | 35,387
Cash, cash equivalents and restricted cash at end of year | 25,095 | 33,496
Supplemental disclosure of noncash investing and financing activities: |  |
Conversion of redeemable convertible preferred stock into common stock | 0 | 133,097
Assumption of warrant liabilities in Business Combination | 0 | 8,372
Transaction costs in Business Combination included in accounts payable and accrued liabilities | 0 | 1,792
Purchases of property and equipment included in accounts payable and accrued expenses | 85 | 22
Vesting of early exercises of stock options | 101 | 207
Reclassification to liability for early exercised stock options | 0 | 225
Increase in right-of-use assets and lease liabilities due to lease extension | 0 | 257
Reconciliation Of Cash Cash Equivalents And Restricted Cash To Consolidated Balance Sheets Abstract |  |
Cash and cash equivalents | 24,690 | 33,091
Restricted cash | 405 | 405
Cash, cash equivalents and restricted cash | $ 25,095 | $ 33,496

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