Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF CASH FLOWS

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Cash flows from operating activities    
Net loss $ (27,412) $ (21,078)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 1,828 1,740
Amortization 167 143
Share-based compensation expense 3,479 4,672
Realized loss on available-for-sale debt securities 0 1,163
Unrealized foreign exchange gains (5,095) (7,862)
Other (39) 124
Changes in operating assets and liabilities:    
Increase in receivables and other operating assets (6,659) (10,179)
Increase in non-current operating assets (19) (123)
Decrease in payables and deferred revenue (2,453) (15,879)
Net cash used in operating activities (36,203) (47,279)
Cash flows from investing activities    
Acquisition of property, plant and equipment (904) (1,904)
Acquisition of intangibles (205) (10)
Maturity or redemption of marketable securities 22,669 28,043
Investment in marketable securities (3,904) (12,490)
Net cash provided by investing activities 17,656 13,639
Cash flows from financing activities    
Proceeds from exercise of stock options 36 1,534
Net cash provided by financing activities 36 1,534
Effect of currency exchange rate changes on cash, cash equivalents and restricted cash 425 1,545
Net decrease in cash and cash equivalents (18,086) (30,561)
Cash, cash equivalents and restricted cash at start of period 72,476 88,296
Cash, cash equivalents and restricted cash at end of period $ 54,390 $ 57,735