Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows (Unaudited)

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Cash flows from operating activities:    
Net loss $ (21,727,922) $ (12,428,400)
Adjustments to reconcile net loss to net cash used in operating activities:    
Share-based compensation expense 4,233,511 1,522,345
Depreciation and amortization 191,093 57,695
Unrealized loss on foreign exchange 39,492
Deferred rent 26,574
Changes in operating assets and liabilities:    
Decrease in grants receivable 500,000
Decrease in prepaid expenses 210,393 60,717
Increase in other assets (65,026)
Increase in accounts payable 517,677 1,448,004
(Decrease) increase in accrued expenses (668,286) 1,772,585
Decrease in deferred revenue (1,940,195) (535,753)
Increase in other long-term liabilities 10,205
Net cash used in operating activities (18,682,689) (8,092,602)
Cash flows from investing activities:    
Purchases of property and equipment (127,246) (257,014)
Net cash used in investing activities (127,246) (257,014)
Cash flows from financing activities:    
Principal payments on notes payable (271,757) (162,019)
Proceeds from issuance of common stock 41,378,762 15,235,283
Issuance costs paid for common stock financings (689,023)
Principal payments on capital lease obligation (2,835) (2,575)
Net cash provided by financing activities 40,415,147 15,070,689
Net increase in cash, cash equivalents, and restricted cash 21,605,212 6,721,073
Cash, cash equivalents, and restricted cash at beginning of the period 15,192,257 12,374,650
Cash, cash equivalents, and restricted cash at end of the period 36,797,469 19,095,723
Supplemental disclosure of cash flow information and non-cash transactions:    
Cash paid during the period for interest 10,691 3,815
Cash paid during the period for income taxes 1,877
Asset acquired under capital lease obligation 11,638
Purchases of property and equipment included in accounts payable $ 13,999