| Dec'19 | Dec'18 | Dec'17 | ||||
|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||
Net loss | ||||||
-57,410 | -53,281 | -32,068 | ||||
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Depreciation and amortization expense | ||||||
500 | 500 | 405 | ||||
Loss on disposal of property and equipment | ||||||
-3 | - | - | ||||
Stock-based compensation expense | ||||||
9,036 | 3,318 | 901 | ||||
Changes in operating assets and liabilities: | ||||||
Prepaid expenses and other assets | ||||||
3,166 | 260 | 1,355 | ||||
Accounts receivable | ||||||
-134 | -359 | 448 | ||||
Accounts payable | ||||||
-361 | 418 | -124 | ||||
Accrued expenses and other liabilities | ||||||
-778 | 1,541 | -46 | ||||
Net cash used in operating activities | ||||||
-52,087 | -47,448 | -32,735 | ||||
Cash flows from investing activities: | ||||||
Purchases of property and equipment | ||||||
43 | 407 | 1,577 | ||||
Proceeds from sale of property and equipment | ||||||
4 | - | - | ||||
Net cash used in investing activities | ||||||
-39 | -407 | -1,577 | ||||
Cash flows from financing activities: | ||||||
Payment of deferred issuance costs associated with Series B convertible preferred stock financing | ||||||
- | 232 | - | ||||
Proceeds from stock options exercised | ||||||
374 | 101 | - | ||||
Proceeds from initial public offering, net of underwriters' discounts | ||||||
- | 109,517 | - | ||||
Payment of offering costs | ||||||
182 | 3,012 | - | ||||
Net cash provided by financing activities | ||||||
192 | 106,374 | 109,968 | ||||
Net increase (decrease) in cash, cash equivalents and restricted cash | ||||||
-51,934 | 58,519 | 75,656 | ||||
Supplemental disclosure of non-cash investing and financing activities: | ||||||
Offering costs not yet paid | ||||||
70 | - | - | ||||
Series B convertible preferred stock financing costs not yet paid | ||||||
- | - | 232 | ||||
Property and equipment in accounts payable | ||||||
11 | - | - | ||||
Series A-2 | ||||||
Proceeds from issuance of convertible preferred stock, net issuance of costs | ||||||
- | - | 39,979 | ||||
Series B | ||||||
Proceeds from issuance of convertible preferred stock, net issuance of costs | ||||||
- | - | 69,989 | ||||