| Dec'19 | Dec'18 | Dec'17 | ||||
|---|---|---|---|---|---|---|
Collaboration revenue | ||||||
22,499 | 9,734 | 8,360 | ||||
Operating expenses: | ||||||
Research and development | ||||||
43,709 | 38,285 | 29,832 | ||||
General and administrative | ||||||
10,968 | 7,454 | 4,680 | ||||
Total operating expenses | ||||||
54,677 | 45,739 | 34,512 | ||||
Loss from operations | ||||||
-32,178 | -36,005 | -26,152 | ||||
Other income (expense): | ||||||
Interest income | ||||||
267 | 1,153 | 386 | ||||
Other income, net | ||||||
78 | 320 | 274 | ||||
Total other income (expense), net | ||||||
345 | 1,473 | 660 | ||||
Net loss | ||||||
-31,833 | -34,532 | -25,492 | ||||
Accretion of redeemable convertible preferred stock to redemption value | ||||||
- | 16 | 65 | ||||
Net loss attributable to common stockholders | ||||||
-31,833 | -34,548 | -25,557 | ||||
Net loss per common share, basic and diluted | ||||||
-1.04 | -1.39 | -2.51 | ||||
Weighted average common shares outstanding, basic and diluted | ||||||
30,480 | 24,895 | 10,191 | ||||
Comprehensive loss: | ||||||
Net loss | ||||||
-31,833 | -34,532 | -25,492 | ||||
Other comprehensive income (loss): | ||||||
Unrealized gains on marketable securities, net of tax of $0 | ||||||
12 | 4 | 8 | ||||
Total other comprehensive income | ||||||
12 | 4 | 8 | ||||
Comprehensive loss | ||||||
-31,821 | -34,528 | -25,484 | ||||