| Dec'19 | Dec'18 | Dec'17 | Dec'16 | |||
|---|---|---|---|---|---|---|
Collaboration revenue - related party | ||||||
15,360 | 59,417 | 12,826 | 6,632 | |||
Operating expenses: | ||||||
Research and development | ||||||
52,118 | 52,492 | 47,783 | 20,492 | |||
General and administrative | ||||||
20,608 | 16,076 | 11,033 | 4,144 | |||
Total operating expenses | ||||||
72,726 | 68,568 | 58,816 | 24,636 | |||
Income (loss) from operations | ||||||
-57,366 | -9,151 | -45,990 | -18,004 | |||
Interest and other income, net | ||||||
2,577 | 2,554 | 613 | 551 | |||
Net income (loss) | ||||||
-54,789 | -6,597 | -45,377 | -17,453 | |||
Accretion of redeemable convertible preferred stock to redemption value | ||||||
- | 11 | 40 | 41 | |||
Net loss attributable to common stockholders | ||||||
-54,789 | -6,608 | -45,417 | -17,494 | |||
Net loss per share attributable to common stockholders—basic and diluted | ||||||
-1.97 | -0.33 | -18.35 | -7.31 | |||
Weighted average common shares outstanding—basic and diluted | ||||||
27,854 | 19,990 | 2,474 | 2,393 | |||
Comprehensive income (loss): | ||||||
Net income (loss) | ||||||
-54,789 | -6,597 | -45,377 | -17,453 | |||
Other comprehensive income (loss): | ||||||
Unrealized gain on marketable securities, net of tax of $0 | ||||||
222 | 127 | 107 | -353 | |||
Comprehensive income (loss) | ||||||
-54,567 | -6,470 | -45,270 | -17,806 | |||