CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net loss	$ (64,209)	$ (118,762)
Adjustments to reconcile net loss to net cash used in operating activities:
Changes in fair value of warrant liabilities	(1,218)	86,378
Depreciation and amortization	591	213
Loss on induced exchanges of debt	0	13,005
Amortization of deferred revenue	(94)	(17)
Amortization of bond premiums	3	(14)
Amortization of debt issuance costs	36	1,569
Amortization of deferred rent	109	(9)
(Decrease) increase in allowance for doubtful accounts	0	3
Non-cash expense related to stock compensation	1,734	584
Changes in operating assets and liabilities	13,396	(3,520)
Net cash used in operating activities	(49,652)	(20,570)
Cash flows from investing activities
Purchases of marketable securities	0	(245)
Proceeds from sales/maturities of marketable securities	21,818	15,124
Purchases of property and equipment	(3,184)	(789)
Net cash provided by investing activities	18,634	14,090
Cash flows from financing activities:
Exercise of stock options	131	612
Exercise of warrants	375	0
Sale of common stock and warrants, net of related expenses	0	5,906
Direct cost of raising equity	0	(419)
Tax withholding payments for stock compensation	(167)	(51)
Net cash provided by financing activities	339	6,048
Effect of changes in exchange rates on cash, cash equivalents and restricted cash	4	(2)
Net decrease in cash, cash equivalents and restricted cash	(30,675)	(434)
Cash, cash equivalents and restricted cash beginning of period	612,582	43,393
Cash, cash equivalents and restricted cash end of period	581,907	42,959
Supplemental disclosure of cash flow information:
Interest paid	475	2,375
Schedule for non-cash investing and financing activities:
Issuance of common shares for debt conversion	0	80,000
Accrued capital expenditures	2,449	0
Shares received in cashless exercise	634	0
Non-cash component of warrant exercise	1,776	11,242
Total cash, cash equivalents and restricted cash	$ 612,582	$ 43,393

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