| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 |
|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||||
Net Loss | ||||||||
-48,475 | -36,980 | -28,071 | -20,734 | -14,780 | -12,476 | 0 | 0 | 0 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Non-cash interest expense related to convertible promissory notes | ||||||||
- | - | - | - | - | 263 | 0 | 0 | 0 |
Non-cash rent expense | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Stock based compensation | ||||||||
3,821 | 2,056 | 1,587 | 695 | 332 | 155 | 0 | 0 | 0 |
Depreciation and amortization | ||||||||
252 | 188 | 136 | 87 | 62 | 51 | 0 | 0 | 0 |
Amortization of (discount) premium on available for sale investments | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Accretion of discount on convertible promissory notes payable | ||||||||
- | - | - | - | - | 694 | 0 | 0 | 0 |
Change in fair value of derivative liability | ||||||||
- | - | - | - | - | -206 | 0 | 0 | 0 |
Changes in operating assets and liabilities: | ||||||||
Prepaid expenses and other current assets | ||||||||
1,647 | 5,324 | 3,991 | 4,940 | 4,238 | 690 | 0 | 0 | 0 |
Other assets | ||||||||
- | 207 | 0 | 0 | 0 | - | - | - | - |
Accounts payable | ||||||||
3,008 | 2,580 | 1,727 | 4,745 | 1,510 | -23 | 0 | 0 | 0 |
Accrued expenses and other current liabilities | ||||||||
6,376 | 4,855 | 3,104 | 1,326 | 1,311 | 273 | 0 | 0 | 0 |
Net cash used in operating activities | ||||||||
-36,840 | -33,277 | -26,300 | -19,429 | -15,734 | -11,695 | 0 | 0 | 0 |
Cash flow from investing activities: | ||||||||
Purchase of investments | ||||||||
205,373 | 135,415 | 0 | 0 | 0 | - | - | - | - |
Proceeds from maturities of investments | ||||||||
111,790 | 117,723 | 0 | 0 | 0 | - | - | - | - |
Purchase of property and equipment | ||||||||
9 | 55 | 0 | 0 | 0 | - | - | - | - |
Net cash (used in) provided by investing activities | ||||||||
-93,592 | -17,747 | 0 | 0 | 0 | - | - | - | - |
Cash flows from financing activities: | ||||||||
Payments of finance leases | ||||||||
0 | - | - | - | - | - | - | - | - |
Proceeds from issuance of convertible promissory note payable | ||||||||
- | - | - | - | - | 250 | 0 | 0 | 0 |
Proceeds from issuance of common stock upon exercise of stock options | ||||||||
224 | 97 | 0 | 0 | 0 | - | - | - | - |
Proceeds from private placement offering, net of issuance costs | ||||||||
0 | - | - | - | - | - | - | - | - |
Deferred Series B redeemable convertible preferred stock offering costs | ||||||||
- | - | - | - | - | - | - | - | 0 |
Net cash provided by financing activities | ||||||||
195,154 | 77,366 | 77,886 | 77,886 | 75,754 | 75,928 | 0 | 0 | 0 |
Net change in cash and cash equivalents | ||||||||
64,722 | 26,342 | 17,696 | -32,956 | 16,430 | 17,479 | 0 | 0 | 0 |
Supplemental disclosures of non-cash information: | ||||||||
Right-of-use assets obtained in exchange for new operating lease liabilities | ||||||||
0 | - | - | - | 0 | - | - | - | - |