| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 |
|---|---|---|---|---|---|---|---|---|
Operating activities | ||||||||
Net loss | ||||||||
-60,718 | -20,959 | -20,483 | -17,142 | -13,547 | -9,018 | -5,997 | -5,037 | -4,733 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Stock-based compensation expense | ||||||||
38,365 | 4,228 | 3,493 | 3,059 | 1,926 | 746 | 179 | 137 | 85 |
Depreciation | ||||||||
208 | 170 | 89 | 158 | 75 | 74 | 25 | 21 | 18 |
Accretion of discount on marketable securities | ||||||||
242 | - | - | - | - | - | - | - | - |
Amortization of right-of-use operating lease asset | ||||||||
380 | - | - | - | 164 | - | - | - | - |
Changes in operating assets and liabilities: | ||||||||
Prepaid expenses and other current assets | ||||||||
2,819 | 684 | 797 | 2,965 | 856 | -137 | -405 | 199 | 255 |
Accounts payable | ||||||||
-28 | -293 | -1,399 | 1,000 | 1,595 | -625 | 240 | -458 | 724 |
Accrued expenses and other current liabilities | ||||||||
946 | 644 | 124 | -1,300 | 1,054 | 312 | -345 | 16 | -928 |
Accrued compensation | ||||||||
-3,958 | 2,953 | 2,112 | 857 | -599 | 551 | 364 | 362 | -299 |
Operating lease right-of-use assets and liabilities, net | ||||||||
- | - | - | - | - | - | - | 3 | 4 |
Net cash used in operating activities | ||||||||
-27,866 | -14,072 | -16,546 | -16,951 | -10,188 | -7,858 | -5,122 | -5,161 | -5,392 |
Investing activities | ||||||||
Purchases of marketable securities | ||||||||
63,675 | - | - | - | - | - | - | - | - |
Sales and maturities of marketable securities | ||||||||
73,620 | - | - | - | - | - | - | - | - |
Purchases of property and equipment | ||||||||
454 | 761 | 795 | 155 | 33 | 81 | 83 | 27 | 111 |
Net cash provided by (used in) investing activities | ||||||||
9,491 | -110,110 | -80,096 | -170,840 | -33 | -81 | -83 | -27 | -111 |
Financing activities | ||||||||
Costs paid in connection with initial public offering | ||||||||
- | - | - | - | 819 | - | - | - | - |
Proceeds from issuance of common stock | ||||||||
25 | - | - | - | 22 | - | - | - | - |
Proceeds from issuance of common stock from stock option exercises | ||||||||
- | - | - | - | - | - | 26 | 39 | 6 |
Net cash provided by (used in) financing activities | ||||||||
25 | -51 | 190,282 | 176,561 | -797 | 79,760 | 26 | 39 | 6 |
Net decrease in cash and cash equivalents | ||||||||
-18,350 | -124,233 | 93,640 | -11,230 | -11,018 | 71,821 | -5,179 | -5,149 | -5,497 |
Supplemental disclosure of cash flow information: | ||||||||
Cash paid for income taxes | ||||||||
1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
Supplemental disclosure of non-cash investing and financing information: | ||||||||
Costs incurred in connection with the initial public offering included in accounts payable and accrued expenses | ||||||||
- | - | - | - | 760 | - | - | - | - |
Operating lease liabilities arising from obtaining right-of-use assets | ||||||||
- | 0 | 4,034 | -753 | 2,273 | - | - | - | - |