| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Dec'17 |
|---|---|---|---|---|---|---|---|---|
Assets | ||||||||
Current assets: | ||||||||
Cash and cash equivalents | ||||||||
135,942 | 38,367 | 308,805 | 36,457 | 31,464 | 33,660 | 51,635 | 19,295 | 85,207 |
Investments in marketable securities | ||||||||
343,863 | 457,534 | 208,199 | 116,614 | 135,724 | 145,246 | 141,903 | 44,851 | 0 |
Prepaid expenses and other current assets | ||||||||
3,953 | 3,969 | 3,071 | 1,270 | 1,511 | 2,703 | 3,647 | 2,987 | 1,037 |
Total current assets | ||||||||
483,758 | 499,870 | 520,075 | 154,341 | 168,699 | 181,609 | 197,185 | 67,133 | 86,244 |
Property and equipment, net | ||||||||
8,072 | 8,410 | 8,427 | 8,734 | 9,031 | 8,848 | 7,624 | 3,376 | 445 |
Operating lease right-of-use assets | ||||||||
5,705 | 5,775 | 5,843 | 5,908 | 5,977 | 0 | - | - | - |
Other long-term assets | ||||||||
2,839 | 2,839 | 802 | 802 | 802 | 802 | 952 | 3,716 | 340 |
Total assets | ||||||||
500,374 | 516,894 | 535,147 | 169,785 | 184,509 | 191,259 | 205,761 | 74,225 | 87,029 |
Liabilities and stockholders’ equity | ||||||||
Current liabilities: | ||||||||
Accounts payable | ||||||||
9,062 | 5,963 | 3,823 | 2,966 | 3,789 | 2,092 | 4,333 | 1,928 | 1,703 |
Accrued expenses and other current liabilities | ||||||||
5,273 | 7,098 | 8,675 | 6,343 | 4,443 | 3,164 | 3,742 | 3,082 | 1,089 |
Total current liabilities | ||||||||
14,335 | 13,061 | 12,498 | 9,309 | 8,232 | 5,256 | 8,075 | 5,010 | 2,792 |
Other long-term liabilities | ||||||||
7,995 | 8,112 | 8,223 | 8,326 | 8,388 | 2,009 | 1,731 | 1,468 | 36 |
Total liabilities | ||||||||
22,330 | 21,173 | 20,721 | 17,635 | 16,620 | 7,265 | 9,806 | 6,478 | 2,828 |
Commitments and contingencies (Note 6) | ||||||||
- | - | - | - | 0 | 0 | 0 | 0 | - |
Stockholders’ equity: | ||||||||
Preferred stock, $0.001 par value per share; 20,000 shares authorized as of March 31, 2020 and December 31, 2019; no shares issued and outstanding as of March 31, 2020 and December 31, 2019 | ||||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | - | 0 |
Common stock, $0.001 par value per share; 200,000 shares authorized as of March 31, 2020 and December 31, 2019; 48,765 and 48,668 shares issued and outstanding as of March 31, 2020 and December 31, 2019, respectively | ||||||||
48 | 48 | 48 | 43 | 43 | 42 | 42 | 3 | 3 |
Additional paid-in capital | ||||||||
693,298 | 685,020 | 679,145 | 295,130 | 291,881 | 288,079 | 285,530 | 3,158 | 1,803 |
Accumulated other comprehensive gain | ||||||||
2,006 | 137 | 102 | 114 | 30 | -15 | -33 | 3 | 0 |
Accumulated deficit | ||||||||
-217,300 | -189,484 | -164,900 | -143,100 | -124,065 | -104,112 | -89,584 | -78,436 | -60,574 |
Total stockholders’ equity | ||||||||
478,044 | 495,721 | 514,426 | 152,150 | 167,889 | 183,994 | 195,955 | -75,272 | -58,768 |
Total liabilities and stockholders’ equity | ||||||||
500,374 | 516,894 | 535,147 | 169,785 | 184,509 | 191,259 | 205,761 | 74,225 | 87,029 |
Series A Convertible Preferred Stock | ||||||||
Convertible preferred stock, value | ||||||||
- | - | - | - | - | - | - | - | 42,996 |
Series B Convertible Preferred Stock | ||||||||
Convertible preferred stock, value | ||||||||
- | - | - | - | - | - | - | - | 99,973 |