| Dec'19 | Dec'18 | Dec'17 | ||||
|---|---|---|---|---|---|---|
Operating activities: | ||||||
Net loss | ||||||
-82,739 | -37,614 | -33,778 | ||||
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Accretion on marketable securities | ||||||
1,020 | 673 | - | ||||
Depreciation and amortization expense | ||||||
125 | 80 | 5 | ||||
Loss on disposal of property and equipment | ||||||
-53 | - | - | ||||
Stock-based compensation expense | ||||||
3,694 | 2,793 | 470 | ||||
Change in fair value of tranche liability | ||||||
- | - | 14,896 | ||||
Expense related to acquisition of intellectual property | ||||||
- | - | 3,157 | ||||
Changes in operating assets and liabilities: | ||||||
Prepaid expenses and other current assets | ||||||
274 | 630 | 876 | ||||
Accounts payable | ||||||
3,727 | 1,597 | 1,392 | ||||
Accrued liabilities | ||||||
2,756 | -1,022 | 3,749 | ||||
Other liabilities | ||||||
-4 | 19 | - | ||||
Net cash used in operating activities | ||||||
-73,682 | -35,450 | -10,985 | ||||
Purchases of property and equipment | ||||||
271 | 362 | 44 | ||||
Maturities of marketable securities | ||||||
141,500 | 7,500 | - | ||||
Purchases of marketable securities | ||||||
97,103 | 107,854 | - | ||||
Net cash provided by (used in) investing activities | ||||||
44,126 | -100,716 | -44 | ||||
Financing activities: | ||||||
Proceeds from public offering, net of issuance costs | ||||||
49,747 | 90,908 | - | ||||
Proceeds from at-the-market offering, net of issuance costs | ||||||
6,716 | - | - | ||||
Deferred offering costs | ||||||
- | -970 | -568 | ||||
Taxes paid related to net share settlement of restricted stock units | ||||||
20 | - | - | ||||
Proceeds from exercise of stock options | ||||||
6 | 5 | - | ||||
Net cash (used in) provided by financing activities | ||||||
56,449 | 89,943 | 64,378 | ||||
Net increase in cash, cash equivalents and restricted cash | ||||||
26,893 | -46,223 | 53,349 | ||||
Supplemental disclosure of non-cash investing and financing activities: | ||||||
Cash paid for income taxes | ||||||
62 | - | - | ||||
Conversion of redeemable convertible preferred stock into common stock | ||||||
- | 81,620 | - | ||||
Series A Redeemable Convertible Preferred Stock | ||||||
Proceeds from issuance of redeemable convertible preferred stock | ||||||
- | - | 25,000 | ||||
Series B Redeemable Convertible Preferred Stock | ||||||
Proceeds from issuance of redeemable convertible preferred stock | ||||||
- | - | 39,946 | ||||