| Dec'19 | Dec'18 | Dec'17 | Dec'16 | |||
|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||
Net loss | ||||||
-35,087 | -23,167 | -8,517 | -8,990 | |||
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Depreciation and amortization | ||||||
1,301 | 690 | 175 | 154 | |||
Stock-based compensation | ||||||
4,007 | 1,993 | 203 | 128 | |||
Amortization of premiums and discounts on marketable securities | ||||||
979 | 476 | - | - | |||
Loss on disposal of property and equipment | ||||||
- | -106 | - | - | |||
Changes in operating assets and liabilities | ||||||
Prepaid expenses and other current assets | ||||||
553 | 1,136 | 543 | 598 | |||
Other assets | ||||||
- | -61 | 282 | - | |||
Accounts payable and accrued liabilities | ||||||
2,208 | 1,440 | 844 | -469 | |||
Operating lease liabilities and other liabilities | ||||||
-774 | -8 | 6 | - | |||
Deferred rent | ||||||
- | 295 | -5 | -15 | |||
Net cash used in operating activities | ||||||
-29,877 | -20,792 | -8,109 | -9,760 | |||
Cash flows from investing activities: | ||||||
Purchases of property and equipment | ||||||
607 | 1,120 | 389 | 132 | |||
Purchases of marketable securities | ||||||
102,255 | 119,244 | - | - | |||
Maturities of marketable securities | ||||||
123,281 | 36,450 | - | - | |||
Proceeds from sale of property and equipment | ||||||
- | 10 | - | - | |||
Net cash (used in) provided by investing activities | ||||||
20,419 | -83,904 | -389 | -132 | |||
Cash flows from financing activities: | ||||||
Proceeds from issuance of common stock, net of issuance costs | ||||||
- | 77,695 | - | - | |||
Proceeds from issuance of preferred stock, net of issuance costs | ||||||
- | - | 49,755 | - | |||
Proceeds from issuance of common stock under employee stock incentive plans | ||||||
272 | 218 | - | - | |||
Proceeds from the exercise of stock options | ||||||
- | - | - | 36 | |||
Net cash provided by financing activities | ||||||
272 | 77,913 | 49,755 | 36 | |||
Effect of exchange rate changes on cash and cash equivalents | ||||||
-45 | -81 | 29 | -150 | |||
Net increase (decrease) in cash and cash equivalents | ||||||
-9,231 | -26,864 | 41,286 | -10,006 | |||
Supplemental disclosures of noncash investing and financing information: | ||||||
Reclassification of employee stock liability to equity upon vesting | ||||||
50 | 69 | 16 | - | |||
Addition of tenant improvement paid by landlord | ||||||
- | 2,703 | 464 | - | |||
Purchase of property and equipment in accounts payable | ||||||
- | 38 | - | - | |||
Conversion of redeemable convertible preferred stock into common stock | ||||||
- | 77,931 | - | - | |||