| Dec'19 | Dec'18 | Dec'17 | Dec'16 | |||
|---|---|---|---|---|---|---|
Operating activities: | ||||||
Net loss | ||||||
-53,792 | 18,167 | -28,697 | -30,638 | |||
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Change in fair value of convertible preferred stock warrant liability | ||||||
0 | 577 | 526 | -43 | |||
Change in fair value of redemption features liability | ||||||
0 | 0 | -5,586 | 241 | |||
Amortization of discount on marketable securities | ||||||
1,563 | 387 | 0 | 0 | |||
Depreciation | ||||||
1,832 | 252 | 178 | 232 | |||
Stock-based compensation | ||||||
12,182 | 2,801 | 1,027 | 1,053 | |||
Deferred rent | ||||||
-325 | 745 | 0 | 0 | |||
Convertible loan issuance cost | ||||||
- | - | - | 182 | |||
Amortization of debt discount | ||||||
0 | 0 | 5,495 | 3,458 | |||
Interest expense on convertible notes | ||||||
0 | 0 | 1,669 | 442 | |||
Changes in operating assets and liabilities: | ||||||
Prepaid expenses and other assets | ||||||
400 | 2,187 | 843 | -449 | |||
Deferred revenue | ||||||
-5,160 | -44,137 | 49,753 | 0 | |||
Accounts payable | ||||||
-2,082 | 1,034 | 1,280 | 696 | |||
Accrued liabilities | ||||||
6,762 | 1,962 | 2,046 | -552 | |||
Net cash used in operating activities | ||||||
-42,546 | -21,173 | 26,848 | -24,844 | |||
Investing activities: | ||||||
Purchases of property and equipment | ||||||
2,171 | 1,067 | 90 | 12 | |||
Maturities of marketable securities | ||||||
199,916 | 13,500 | 0 | 0 | |||
Purchases of marketable securities | ||||||
380,368 | 159,299 | 0 | 0 | |||
Net cash provided by (used in) investing activities | ||||||
-182,623 | -146,866 | -90 | -12 | |||
Financing activities: | ||||||
Net proceeds from equity offerings | ||||||
226,474 | 110,574 | 0 | 10 | |||
Net proceeds from initial public offering | ||||||
- | - | - | 0 | |||
Net proceeds from Series C preferred stock issuance | ||||||
0 | 49,800 | 0 | 0 | |||
Proceeds from issuances of common stock upon exercise of options and participation in employee stock purchase plan | ||||||
3,661 | 1,511 | 317 | - | |||
Proceeds from exercise of common stock warrants | ||||||
0 | 56 | 0 | 0 | |||
Proceeds from issuance of convertible notes | ||||||
0 | 0 | 8,060 | 13,433 | |||
Net cash provided by financing activities | ||||||
230,135 | 161,941 | 8,377 | 13,443 | |||
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | ||||||
0 | 0 | 52 | -9 | |||
Net increase (decrease) in cash, cash equivalents and restricted cash | ||||||
4,966 | -6,098 | 35,187 | -11,422 | |||
Supplemental disclosures of cash flow information | ||||||
Non cash tenant improvement allowance used for leasehold improvements | ||||||
8,324 | 0 | 0 | 0 | |||
Non cash tenant improvement allowance receivables | ||||||
0 | 8,324 | 0 | - | |||
Purchases of property and equipment accrued but not yet paid | ||||||
0 | 642 | 0 | 0 | |||
Conversion of convertible note and interest into convertible preferred stock | ||||||
0 | 0 | 23,605 | 0 | |||