| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 |
|---|---|---|---|---|---|---|
Operating expenses: | ||||||
Research and development | ||||||
22,230 | 43,415 | 23,539 | 14,855 | 34,409 | 5,174 | 11,447 |
Abandoned initial public offering costs | ||||||
- | - | - | 4,705 | - | - | - |
General and administrative | ||||||
30,512 | 34,227 | 12,148 | 15,083 | 7,639 | 4,416 | 2,974 |
Total operating expenses | ||||||
52,742 | 77,642 | 35,687 | 34,643 | 42,049 | 9,591 | 14,422 |
Loss from operations | ||||||
-52,742 | -77,642 | -35,687 | -34,643 | -42,049 | -9,591 | -14,422 |
Other income (expense): | ||||||
Interest income | ||||||
458 | 127 | 128 | 77 | 26 | 7 | 1 |
Other income (expense), net | ||||||
301 | -145 | -46 | 38 | - | - | -47 |
Loss on issuance of Series D redeemable convertible preferred stock | ||||||
- | - | 8,522 | 26,635 | - | - | - |
Loss on issuance of warrants | ||||||
0 | 47,920 | 0 | - | - | - | - |
Loss on issuance of Purchase Rights | ||||||
674 | 0 | - | - | - | - | - |
Interest expense | ||||||
- | - | - | - | 1,133 | 374 | 56 |
Fair Value Adjustment of Warrants | ||||||
7,755 | 0 | - | - | - | 860 | 490 |
Change in fair value of Purchase Rights | ||||||
19,617 | 0 | - | - | - | - | - |
Loss on extinguishment of related-party note payable | ||||||
- | - | - | -6,651 | - | - | - |
Change in fair value of Series D 2X liquidation preference | ||||||
0 | -130 | -61,175 | -543 | - | - | - |
Total other income (expense), net | ||||||
-27,287 | -48,068 | -69,615 | -33,714 | - | - | - |
Loss before income tax | ||||||
-80,029 | -125,710 | -105,302 | -68,357 | - | - | - |
Income tax expense | ||||||
4 | 2 | 3 | -613 | - | - | - |
Loss from continuing operations | ||||||
- | - | - | -67,744 | - | - | - |
Income from discontinued operations, net of income tax | ||||||
- | - | - | 80 | - | - | - |
Gain on sale of discontinued operations, net of income tax | ||||||
- | - | - | 997 | - | - | - |
Net gain on sale of discontinued operations | ||||||
- | - | - | 1,077 | - | - | - |
Net Income (Loss) Attributable to Parent | ||||||
-80,033 | -125,712 | -105,305 | -66,667 | -43,157 | -10,819 | -15,016 |
Accretion of Series D redeemable convertible preferred stock dividends | ||||||
0 | 66 | 4,017 | 1,144 | - | - | - |
Net loss attributable to common stockholders | ||||||
-80,033 | -125,778 | -109,322 | -67,811 | - | - | - |
Net loss per share, basic and diluted (in dollars per share) | ||||||
-1.99 | -5.74 | -55.78 | -0.89 | -18.91 | -5.36 | -29.33 |
Weighted-average shares used to compute net loss per share, basic and diluted (in shares) | ||||||
40,228 | 21,900 | 1,959 | 76,551 | 2,282 | 2,017 | 511 |