CONSOLIDATED STATEMENT OF CASH FLOWS (USD $)	10 Months Ended
	Dec. 31, 2014
Operating activities
Net loss	$ (8,010,860)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	11,997
Stock-based compensation	1,462,061
Other non-cash items	55,221
Changes in operating assets and liabilities:
Restricted cash	(126,808)
Prepaid expenses and other current assets	(370,396)
Other assets	(50,000)
Accounts payable	254,253
Accrued expenses	220,375
Deferred rent	57,849
Other long term liabilities	15,442
Net cash used in operating activities	(6,480,866)
Investing activities
Purchases of property and equipment	(76,141)
Net cash used in investing activities	(76,141)
Financing activities
Proceeds from sale of restricted common stock to founders	2,321
Proceeds from exercise of common stock	8,138
Deferred IPO issuance costs	(575,245)
Net cash provided by financing activities	40,411,160
Net increase in cash	33,854,153
Cash at beginning of period	0
Cash at end of period	33,854,153
Supplemental cash flow information
Issuance of Series A convertible preferred stock in satisfaction of accounts payable	55,221
Deferred IPO issuance costs in accounts payable and accrued expenses	499,549
Property and equipment purchases in accrued expenses	21,000
Series A Preferred Stock
Financing activities
Proceeds from issuance of convertible preferred stock, net of issuance costs	15,581,811
Series B Preferred Stock
Financing activities
Proceeds from issuance of convertible preferred stock, net of issuance costs	$ 25,394,135