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v3.20.4

Statement of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Operating activities: |  |
Net loss | $ (27,531) | $ (37,037)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Stock-based compensation expense | 1,788 | 738
Depreciation | 395 | 303
Change in fair value of preferred stock tranche obligation | (2,158) | (72)
Accretion of premium and discounts on short-term investments | 1 | (68)
Changes in operating assets and liabilities: |  |
Prepaid expenses and other current and non-current assets | (2,400) | 1,597
Accounts payable | (1,462) | 1,403
Accrued research and development | (977) | 640
Other current and non-current liabilities | 280 | 1,281
Net cash used in operating activities | (32,064) | (31,215)
Investing activities: |  |
Purchases of property and equipment | (1,023) | (605)
Purchases of short-term investments | (61,637) | (22,515)
Maturity of short-term investments | 20,100 | 2,500
Net cash used in investing activities | (42,560) | (20,620)
Financing activities: |  |
Proceeds from issuance of common stock upon initial public offering, net of underwriting discounts and commissions | 96,255 |
Proceeds from issuance of convertible preferred stock, net of issuance costs |  | 54,782
Proceeds from exercise of stock options | 77 | 134
Payment of offering costs | (4,160) | (45)
Net cash provided by financing activities | 92,172 | 54,871
Net increase in cash and cash equivalents | 17,548 | 3,036
Cash and cash equivalents at beginning of period | 15,870 | 12,834
Cash and cash equivalents at end of period | 33,418 | 15,870
Supplemental disclosure of noncash items: |  |
Deferred offering costs included in accounts payable and other current liabilities |  | 849
Conversion of convertible preferred stock into common stock upon initial public offering | 131,363 |
Property and equipment purchases included in accounts payable | $ 49 | $ 126

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