CONSOLIIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 60,055	$ 30,171
Marketable securities	167,793	107,051
Accounts receivable, net	658
Prepaid expenses and other current assets	5,616	1,334
Total current assets	234,122	138,556
Marketable securities		36,912
Property and equipment, net	1,203	481
Intangible assets	7,367
Goodwill	18,504
Other assets	195	136
Total assets	261,391	176,085
Current liabilities:
Accounts payable	6,483	2,845
Accrued expenses	3,510	3,378
Total current liabilities	9,993	6,223
Contingent consideration	4,378
Other liabilities	375	372
Deferred tax liability	2,386
Total liabilities	17,132	6,595
Stockholders' Equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized and no shares issued or outstanding at September 30, 2017 and December 31, 2016
Common stock, $0.00001 par value; 100,000,000 shares authorized at September 30, 2017 and December 31, 2016; 30,834,679 and 26,059,181 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively
Additional paid-in capital	380,873	260,671
Accumulated other comprehensive loss	(113)	(269)
Accumulated deficit	(136,501)	(90,912)
Total stockholders’ equity	244,259	169,490
Total liabilities and stockholders’ equity	$ 261,391	$ 176,085