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v3.10.0.1

Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenue |  |  |  |
Collaborations, licenses and milestones | $ 29,039 |  | $ 29,039 | $ 16,000
Operating expenses |  |  |  |
Research and development | 20,953 | $ 19,408 | 70,371 | 51,376
General and administrative | 7,435 | 4,172 | 16,955 | 13,074
Total operating expenses | 28,388 | 23,580 | 87,326 | 64,450
Income (loss) from operations | 651 | (23,580) | (58,287) | (48,450)
Other income (expenses) |  |  |  |
Interest income, net | 2,642 | 1,045 | 6,279 | 3,134
Other income (expense) | (143) | 56 | (202) | 86
Total other income, net | 2,499 | 1,101 | 6,077 | 3,220
Net income (loss) before income taxes | 3,150 | (22,479) | (52,210) | (45,230)
Income tax expense |  | 173 |  | 623
Net income (loss) | 3,150 | (22,652) | (52,210) | (45,853)
Other comprehensive income (loss) |  |  |  |
Net unrealized gain (loss) on marketable securities | (330) | 143 | (530) | 344
Comprehensive income (loss) | $ 2,820 | $ (22,509) | $ (52,740) | $ (45,509)
Net income (loss) per share attributable to common shareholders: |  |  |  |
Basic net income (loss) (in dollars per share) | $ 0.06 | $ (0.48) | $ (0.98) | $ (0.98)
Diluted net income (loss) (in dollars per share) | $ 0.05 | $ (0.48) | $ (0.98) | $ (0.98)
Weighted average shares used to compute net income (loss) per share attributable to common stockholders: |  |  |  |
Basic (in shares) | 55,974,080 | 46,929,498 | 53,165,774 | 46,766,562
Diluted (in shares) | 58,313,002 | 46,929,498 | 53,165,774 | 46,766,562

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