| 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 | ||||||||
-20,011 | -23,237 | -20,990 | -17,708 | -14,834 | -16,679 | -16,015 | -13,660 | -11,161 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Stock-based compensation expense | ||||||||
2,740 | 2,062 | 2,762 | 2,600 | 2,577 | 2,551 | 3,676 | 3,051 | 1,425 |
Depreciation and amortization expense | ||||||||
493 | 485 | 483 | 452 | 423 | 359 | 209 | 160 | 147 |
Net amortization (accretion) of premiums (discounts) on marketable securities | ||||||||
-14 | 100 | 295 | 302 | 312 | - | - | - | - |
Changes in operating assets and liabilities: | ||||||||
Prepaid expenses and other current assets | ||||||||
-1,388 | -546 | -6,080 | 2,970 | 5,019 | -274 | 693 | 1,332 | 60 |
Accounts payable | ||||||||
1,135 | 774 | -199 | 228 | -658 | 396 | 1,109 | -211 | 1,206 |
Accrued expenses and other current liabilities | ||||||||
-2,547 | 3,712 | 522 | 2,491 | -1,636 | 499 | 816 | 2,085 | -1,161 |
Deferred rent | ||||||||
-131 | -131 | -130 | -176 | -4,523 | - | - | - | - |
Net cash used in operating activities | ||||||||
-16,657 | -15,627 | -11,507 | -15,033 | -14,936 | -12,624 | -10,549 | -9,109 | -9,604 |
Cash flows from investing activities: | ||||||||
Purchases of property and equipment | ||||||||
131 | 153 | 530 | 1,126 | 1,251 | 4,351 | 2,475 | 685 | 161 |
Purchases of marketable securities | ||||||||
4,974 | 50,195 | 0 | 75,196 | 18,980 | - | - | - | - |
Maturities of marketable securities | ||||||||
30,500 | 44,625 | 64,338 | 32,500 | 7,500 | - | - | - | - |
Net cash provided by (used in) investing activities | ||||||||
25,395 | -5,723 | 63,808 | -43,822 | -12,731 | -88,394 | -2,475 | -673 | -161 |
Cash flows from financing activities: | ||||||||
Payments of public offering costs | ||||||||
- | - | - | - | - | 476 | 760 | 1,692 | 166 |
Payments of redeemable convertible preferred stock issuance costs | ||||||||
- | - | - | - | - | 0 | 0 | 79 | 9 |
Proceeds from exercise of common stock options | ||||||||
1,124 | 914 | 257 | 287 | 563 | - | - | - | - |
Net cash provided by financing activities | ||||||||
1,124 | 914 | 95 | 60,725 | 563 | -476 | -731 | 143,529 | -175 |
Net increase (decrease) in cash, cash equivalents and restricted cash | ||||||||
9,862 | -20,436 | 52,396 | 1,870 | -27,104 | -101,494 | -13,755 | 133,747 | -9,940 |
Supplemental disclosure of non-cash investing and financing activities: | ||||||||
Purchase of property and equipment included in accounts payable and accrued expenses | ||||||||
0 | - | - | -666 | 1,138 | -1,929 | 3,036 | 346 | 85 |
Deferred offering and redeemable convertible preferred share issuance costs included in accounts payable or accrued expenses | ||||||||
0 | - | - | - | -195 | - | - | - | - |
Deferred offering and redeemable convertible preferred share issuance costs included in accounts payable and accrued expenses | ||||||||
0 | - | - | 357 | -195 | - | - | -108 | 1,221 |