2021 2020 2019 2018 2017 Operating Cash Flow $229.15M$93.78M$-24.44M$-42.43M$-36.85M Net Income $371.17M$-66.78M$-14.64M$-109.03M$-182.87M Depreciation & Amortization $10.96M$19.07M$26.27M$35.06M$41.48M Deferred Income Tax $-273.54M$-50K$-32K$-389K$-2.53M Stock-Based Compensation $38.65M$29.96M$37.19M$40.89M$51.26M Change In Working Capital $13.04M$85.07M$34.35M$-28.58M$46.08M Other Non-Cash Items $68.88M$26.52M$-107.58M$19.62M$9.73M Cash From Investing $-143.72M$9.51M$22.77M$-6.24M$-43.1M Purchases Of Investments $-146.51M$0$-43.64M$-57.73M$-52.32M Sales / Maturities of Investments $8.34M$14.83M$74.75M$57.5M$33.28M Property, Plant & Equipment Investments $-5.54M$-4.88M$-8.35M$-11M$-24.06M Net Acquisitions $0$0$0$0$0 Other Investing Activites $0$-438K$0$5M$0 Cash From Financing $-9.89M$71.98M$-1.04M$-1.48M$88.59M Debt Repayment $-17.38M$-86M$-20M$0$0 Dividend Payments $0$0$0$0$0 Payout Ratio 0%0%0%0%0% Net Common Stock Repurchased $-7.49M$-5.43M$-5.57M$-5.17M$68.25M Common Stock Repurchased $0$0$0$0$-78M Common Stock Issued $-7.49M$-5.43M$-5.57M$-5.17M$68.25M Other Financing Activites $0$152.54M$13.38M$-6.65M$156.84M Accounts Receivables $-8.14M$93.08M$-71.27M$-16.46M$52.28M Accounts Payables $56.26M$-87.5M$3.21M$-70.4M$-44.41M Inventory $11.51M$46.32M$-27.78M$34.09M$16.64M Other Working Capital $307.03M$293.99M$208.93M$174.57M$203.16M Capital Expenditure (CAPEX) $-5.54M$-4.88M$-8.35M$-11M$-24.06M Effect Of Foreign Exchange On Cash $-2.11M$2.08M$923K$-259K$1.75M Net Change In Cash $73.43M$177.35M$-1.79M$-50.41M$10.39M Free Cash Flow (FCF) $223.61M$88.9M$-32.79M$-53.44M$-60.91M Free Cash Flow To Equity (FCFE) $206.23M$2.9M$-52.79M$-53.44M$-60.91M