we combine a broad portfolio of rf solutions , highly differentiated semiconductor technologies , deep systems-level expertise and scale manufacturing to supply a diverse group of customers in expanding markets , including smartphones and other mobile devices , defense and aerospace , wifi customer premises equipment , cellular base stations , optical networks , automotive connectivity , and smart home applications . within these markets , our products enable a broad range of leading-edge applications - from very-high-power wired and wireless infrastructure solutions to ultra-low-power smart home solutions . our products and technologies help transform how people around the world access their data , transact commerce , and interact with their communities . 33 qorvo employs more than 8,600 people . we have world-class manufacturing facilities , and our fabrication facility in richardson , texas , is a u.s. dod-accredited ‘ trusted source ' ( category 1a ) for gaas , gan and baw technologies . our design and manufacturing expertise covers many semiconductor process technologies , which we source both internally and through external suppliers . our primary wafer fabrication facilities are in texas , florida , north carolina and oregon , and our primary assembly and test facilities are in china , costa rica , germany and texas . we also operate design , sales and manufacturing facilities throughout asia , europe and north america . business segments we design , develop , manufacture and market our products to leading u.s. and international oems and odms in the following operating segments : mobile products ( mp ) - mp supplies cellular rf and wifi solutions into a variety of mobile devices , including smartphones , notebook computers , wearables , tablets , and cellular-based applications for the iot . mobile device manufacturers and mobile network operators are adopting new technologies to address the growing demand for data-intensive , increasingly cloud-based , distributed applications and for mobile devices with smaller form factors , improved signal quality , less heat and longer talk and standby times . new wireless communications standards are being deployed to utilize available spectrum more efficiently . carrier aggregation is being implemented , primarily in the downlink , to support wider bandwidths , increase data rates and improve network performance . these trends increase the complexity of smartphones , require more rf content and place a premium on performance , integration , systems-level expertise , and product and technology portfolio breadth , all of which are mp strengths . we offer a comprehensive product portfolio of baw and saw filters , pas , lnas , switches , multimode multi-band pas and transmit modules , rf power management ics , diversity receive modules , antenna switch modules , antenna tuning and control solutions , modules incorporating pas and duplexers and modules incorporating switches , pas and duplexers . infrastructure and defense products ( idp ) - idp is a leading global supplier of rf solutions with a diverse portfolio of solutions that `` connect and protect , `` spanning communications , network infrastructure and defense applications . these applications include high performance defense systems such as radar , electronic warfare and communication systems , wifi customer premises equipment for home and work , high speed connectivity in lte and 5g base stations , cloud connectivity via data center communications and telecom transport , automotive connectivity and smart home solutions . our idp products include high power gaas and gan pas , lnas , switches , cmos system-on-a-chip solutions , premium baw and saw filter solutions and various multi-chip and hybrid assemblies . as of april 1 , 2017 , our reportable segments are mp and idp . these business segments are based on the organizational structure and information reviewed by our chief executive officer , who is our chief operating decision maker ( `` codm `` ) , and are managed separately based on the end markets and applications they support . the codm allocates resources and evaluates the performance of each operating segment primarily based on operating income and operating income as a percentage of revenue . for financial information about the results of our operating segments for each of the last three fiscal years , see note 16 of the notes to the consolidated financial statements set forth in part ii , item 8 of this report . fiscal 2017 management summary our revenue increased 16.2 % in fiscal 2017 to $ 3,032.6 million compared to $ 2,610.7 million in fiscal 2016 , primarily due to higher demand for our cellular rf solutions in support of marquee smartphones and customers based in china and higher sales of our wireless infrastructure , defense and aerospace and wifi products . our gross margin for fiscal 2017 was 37.4 % compared to 40.2 % for fiscal 2016 . gross margin was adversely impacted in fiscal 2017 by an unfavorable change in product mix towards lower margin low-band power amplifier + duplexer ( `` pad `` ) modules , product cost reductions lagging normal average selling price erosion , lower factory utilization and unfavorable inventory adjustments primarily due to lower than expected manufacturing and assembly yields on the low-band pad modules in the second quarter of fiscal 2017. these adverse factors were partially offset by lower intangible amortization , stock-based compensation and other costs related to the business combination . 34 our operating income was $ 88.1 million in fiscal 2017 compared to $ 12.0 million in fiscal 2016 . this increase was primarily due to higher gross profit from higher revenue and lower intangible amortization , stock-based compensation and other costs related to the business combination in fiscal 2017 as compared to fiscal 2016 . our net loss per diluted share was $ 0.13 for fiscal 2017 as compared to net loss per diluted share of $ 0.20 for fiscal 2016 . we generated positive cash flow from operations of $ 776.8 million for fiscal 2017 as compared to $ 687.9 million for fiscal 2016 . story_separator_special_tag during fiscal 2016 , north carolina enacted legislation to reduce the corporate income tax rate from 5 % to 4 % and phase-in over a three-year period a single sales factor apportionment methodology . in addition , the company underwent operational changes to leverage existing resources and capabilities of its singapore subsidiary and consolidate operations and responsibilities associated with its foreign manufacturing operations and foreign customers in that singapore subsidiary . together these changes resulted in a significant decrease in the amount of future taxable income expected to be allocated to north carolina and other states in which the company 's net operating loss and credit carryovers exist . as a result , it was no longer more likely than not that the deferred tax assets related to those state net operating loss and credit carryovers for which a valuation 39 allowance is being provided will be realized before they expire . the foreign net operating losses relate to the china subsidiary that owns an assembly and test facility that became operational during fiscal 2016 , and which has incurred start-up losses since inception . the valuation allowance against net deferred tax assets decreased in fiscal 2015 by $ 129.5 million . the decrease was comprised of $ 135.7 million for domestic deferred tax assets for which realization was determined to be more likely than not with the increase in domestic deferred tax liabilities related to domestic amortizable intangible assets arising in connection with the business combination and other changes in the net deferred tax assets for foreign subsidiaries during the fiscal year , offset by an increase of $ 6.2 million related to deferred tax assets acquired in the business combination which are not more likely than not of being realized . at the end of fiscal 2015 , a $ 0.2 million valuation allowance remained against foreign net deferred tax assets and a $ 13.6 million valuation allowance remained against domestic deferred tax assets as it is more likely than not that the related deferred tax assets will not be realized , effectively increasing the domestic net deferred tax liabilities . as of april 1 , 2017 , we had federal loss carryovers of approximately $ 202.6 million that expire in fiscal years 2020 to 2036 if unused and state losses of approximately $ 209.3 million that expire in fiscal years 2018 to 2036 if unused . federal research credits of $ 104.8 million , federal foreign tax credits of $ 5.0 million , and state credits of $ 57.4 million may expire in fiscal years 2018 to 2037 , 2018 to 2027 , and 2018 to 2032 , respectively . federal alternative minimum tax credits of $ 3.2 million carry forward indefinitely . foreign losses in china of approximately $ 3.3 million and in the netherlands of approximately $ 55.4 million expire in fiscal year 2021 and fiscal years 2018 to 2026 , respectively . included in the amounts above are certain net operating losses and other tax attribute assets acquired in conjunction with the greenpeak acquisition during the current fiscal year and acquisitions of sirenza microdevices , inc. ; silicon wave , inc. ; amalfi semiconductor inc. ; and the business combination in prior years . the utilization of these acquired domestic tax assets is subject to certain annual limitations as required under internal revenue code section 382 and similar state income tax provisions . our gross unrecognized tax benefits totaled $ 90.6 million as of april 1 , 2017 , $ 69.1 million as of april 2 , 2016 , and $ 59.4 million as of march 28 , 2015 . of these amounts , $ 84.4 million ( net of federal benefit of state taxes ) , $ 64.2 million ( net of federal benefit of state taxes ) , and $ 55.0 million ( net of federal benefit of state taxes ) as of april 1 , 2017 , april 2 , 2016 , and march 28 , 2015 , respectively , represent the amounts of unrecognized tax benefits that , if recognized , would impact the effective tax rate in each of the fiscal years . it is our policy to recognize interest and penalties related to uncertain tax positions as a component of income tax expense . during fiscal years 2017 , 2016 and 2015 , we recognized $ 2.1 million , $ 1.6 million and $ 1.2 million , respectively , of interest and penalties related to uncertain tax positions . accrued interest and penalties related to unrecognized tax benefits totaled $ 7.1 million , $ 5.0 million and $ 3.4 million as of april 1 , 2017 , april 2 , 2016 and march 28 , 2015 , respectively . within the next 12 months , we believe it is reasonably possible that only a minimal amount of gross unrecognized tax benefits will be reduced as a result of reductions for tax positions taken in prior years where the only uncertainty was related to the timing of the tax deduction . stock-based compensation under financial accounting standards board ( `` fasb `` ) asc 718 , “ compensation – stock compensation , ” stock-based compensation cost is measured at the grant date , based on the estimated fair value of the award using an option pricing model for stock options ( black-scholes ) and market price for restricted stock units , and is recognized as expense over the employee 's requisite service period . as of april 1 , 2017 , total remaining unearned compensation cost related to unvested restricted stock units and options was $ 70.5 million , which will be amortized over the weighted-average remaining service period of approximately 1.2 years . 40 story_separator_special_tag style= `` font-family : inherit ; font-size:10pt ; `` > 2016 . this year-over-year increase was due primarily to improvement in working capital , partially offset by lower adjustments for non-cash items . the adjustments for non-cash items were lower due primarily to

liquidity and capital resources cash generated by operations is our primary source of liquidity . as of april 1 , 2017 , we had working capital of approximately $ 1,042.8 million , including $ 545.5 million in cash and cash equivalents , compared to working capital of $ 1,135.4 million , including $ 425.9 million in cash and cash equivalents , as of april 2 , 2016 . our $ 545.5 million of total cash and cash equivalents as of april 1 , 2017 includes approximately $ 318.7 million held by our foreign subsidiaries . if the undistributed earnings of our foreign subsidiaries are needed in the u.s. , we may be required to accrue and pay u.s. taxes to repatriate . our current plans are to permanently reinvest the undistributed earnings of our foreign subsidiaries . stock repurchase on february 5 , 2015 , our board of directors authorized the repurchase of up to $ 200.0 million of our outstanding common stock from time to time on the open market or in privately negotiated transactions . on august 11 , 2015 , we announced completion of this program . on august 11 , 2015 , our board of directors authorized the repurchase of up to $ 400.0 million of our outstanding common stock from time to time on the open market or in privatelynegotiated transactions .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources cash generated by operations is our primary source of liquidity . as of april 1 , 2017 , we had working capital of approximately $ 1,042.8 million , including $ 545.5 million in cash and cash equivalents , compared to working capital of $ 1,135.4 million , including $ 425.9 million in cash and cash equivalents , as of april 2 , 2016 . our $ 545.5 million of total cash and cash equivalents as of april 1 , 2017 includes approximately $ 318.7 million held by our foreign subsidiaries . if the undistributed earnings of our foreign subsidiaries are needed in the u.s. , we may be required to accrue and pay u.s. taxes to repatriate . our current plans are to permanently reinvest the undistributed earnings of our foreign subsidiaries . stock repurchase on february 5 , 2015 , our board of directors authorized the repurchase of up to $ 200.0 million of our outstanding common stock from time to time on the open market or in privately negotiated transactions . on august 11 , 2015 , we announced completion of this program . on august 11 , 2015 , our board of directors authorized the repurchase of up to $ 400.0 million of our outstanding common stock from time to time on the open market or in privatelynegotiated transactions .
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 Suspicious Activity Report : we combine a broad portfolio of rf solutions , highly differentiated semiconductor technologies , deep systems-level expertise and scale manufacturing to supply a diverse group of customers in expanding markets , including smartphones and other mobile devices , defense and aerospace , wifi customer premises equipment , cellular base stations , optical networks , automotive connectivity , and smart home applications . within these markets , our products enable a broad range of leading-edge applications - from very-high-power wired and wireless infrastructure solutions to ultra-low-power smart home solutions . our products and technologies help transform how people around the world access their data , transact commerce , and interact with their communities . 33 qorvo employs more than 8,600 people . we have world-class manufacturing facilities , and our fabrication facility in richardson , texas , is a u.s. dod-accredited ‘ trusted source ' ( category 1a ) for gaas , gan and baw technologies . our design and manufacturing expertise covers many semiconductor process technologies , which we source both internally and through external suppliers . our primary wafer fabrication facilities are in texas , florida , north carolina and oregon , and our primary assembly and test facilities are in china , costa rica , germany and texas . we also operate design , sales and manufacturing facilities throughout asia , europe and north america . business segments we design , develop , manufacture and market our products to leading u.s. and international oems and odms in the following operating segments : mobile products ( mp ) - mp supplies cellular rf and wifi solutions into a variety of mobile devices , including smartphones , notebook computers , wearables , tablets , and cellular-based applications for the iot . mobile device manufacturers and mobile network operators are adopting new technologies to address the growing demand for data-intensive , increasingly cloud-based , distributed applications and for mobile devices with smaller form factors , improved signal quality , less heat and longer talk and standby times . new wireless communications standards are being deployed to utilize available spectrum more efficiently . carrier aggregation is being implemented , primarily in the downlink , to support wider bandwidths , increase data rates and improve network performance . these trends increase the complexity of smartphones , require more rf content and place a premium on performance , integration , systems-level expertise , and product and technology portfolio breadth , all of which are mp strengths . we offer a comprehensive product portfolio of baw and saw filters , pas , lnas , switches , multimode multi-band pas and transmit modules , rf power management ics , diversity receive modules , antenna switch modules , antenna tuning and control solutions , modules incorporating pas and duplexers and modules incorporating switches , pas and duplexers . infrastructure and defense products ( idp ) - idp is a leading global supplier of rf solutions with a diverse portfolio of solutions that `` connect and protect , `` spanning communications , network infrastructure and defense applications . these applications include high performance defense systems such as radar , electronic warfare and communication systems , wifi customer premises equipment for home and work , high speed connectivity in lte and 5g base stations , cloud connectivity via data center communications and telecom transport , automotive connectivity and smart home solutions . our idp products include high power gaas and gan pas , lnas , switches , cmos system-on-a-chip solutions , premium baw and saw filter solutions and various multi-chip and hybrid assemblies . as of april 1 , 2017 , our reportable segments are mp and idp . these business segments are based on the organizational structure and information reviewed by our chief executive officer , who is our chief operating decision maker ( `` codm `` ) , and are managed separately based on the end markets and applications they support . the codm allocates resources and evaluates the performance of each operating segment primarily based on operating income and operating income as a percentage of revenue . for financial information about the results of our operating segments for each of the last three fiscal years , see note 16 of the notes to the consolidated financial statements set forth in part ii , item 8 of this report . fiscal 2017 management summary our revenue increased 16.2 % in fiscal 2017 to $ 3,032.6 million compared to $ 2,610.7 million in fiscal 2016 , primarily due to higher demand for our cellular rf solutions in support of marquee smartphones and customers based in china and higher sales of our wireless infrastructure , defense and aerospace and wifi products . our gross margin for fiscal 2017 was 37.4 % compared to 40.2 % for fiscal 2016 . gross margin was adversely impacted in fiscal 2017 by an unfavorable change in product mix towards lower margin low-band power amplifier + duplexer ( `` pad `` ) modules , product cost reductions lagging normal average selling price erosion , lower factory utilization and unfavorable inventory adjustments primarily due to lower than expected manufacturing and assembly yields on the low-band pad modules in the second quarter of fiscal 2017. these adverse factors were partially offset by lower intangible amortization , stock-based compensation and other costs related to the business combination . 34 our operating income was $ 88.1 million in fiscal 2017 compared to $ 12.0 million in fiscal 2016 . this increase was primarily due to higher gross profit from higher revenue and lower intangible amortization , stock-based compensation and other costs related to the business combination in fiscal 2017 as compared to fiscal 2016 . our net loss per diluted share was $ 0.13 for fiscal 2017 as compared to net loss per diluted share of $ 0.20 for fiscal 2016 . we generated positive cash flow from operations of $ 776.8 million for fiscal 2017 as compared to $ 687.9 million for fiscal 2016 . story_separator_special_tag during fiscal 2016 , north carolina enacted legislation to reduce the corporate income tax rate from 5 % to 4 % and phase-in over a three-year period a single sales factor apportionment methodology . in addition , the company underwent operational changes to leverage existing resources and capabilities of its singapore subsidiary and consolidate operations and responsibilities associated with its foreign manufacturing operations and foreign customers in that singapore subsidiary . together these changes resulted in a significant decrease in the amount of future taxable income expected to be allocated to north carolina and other states in which the company 's net operating loss and credit carryovers exist . as a result , it was no longer more likely than not that the deferred tax assets related to those state net operating loss and credit carryovers for which a valuation 39 allowance is being provided will be realized before they expire . the foreign net operating losses relate to the china subsidiary that owns an assembly and test facility that became operational during fiscal 2016 , and which has incurred start-up losses since inception . the valuation allowance against net deferred tax assets decreased in fiscal 2015 by $ 129.5 million . the decrease was comprised of $ 135.7 million for domestic deferred tax assets for which realization was determined to be more likely than not with the increase in domestic deferred tax liabilities related to domestic amortizable intangible assets arising in connection with the business combination and other changes in the net deferred tax assets for foreign subsidiaries during the fiscal year , offset by an increase of $ 6.2 million related to deferred tax assets acquired in the business combination which are not more likely than not of being realized . at the end of fiscal 2015 , a $ 0.2 million valuation allowance remained against foreign net deferred tax assets and a $ 13.6 million valuation allowance remained against domestic deferred tax assets as it is more likely than not that the related deferred tax assets will not be realized , effectively increasing the domestic net deferred tax liabilities . as of april 1 , 2017 , we had federal loss carryovers of approximately $ 202.6 million that expire in fiscal years 2020 to 2036 if unused and state losses of approximately $ 209.3 million that expire in fiscal years 2018 to 2036 if unused . federal research credits of $ 104.8 million , federal foreign tax credits of $ 5.0 million , and state credits of $ 57.4 million may expire in fiscal years 2018 to 2037 , 2018 to 2027 , and 2018 to 2032 , respectively . federal alternative minimum tax credits of $ 3.2 million carry forward indefinitely . foreign losses in china of approximately $ 3.3 million and in the netherlands of approximately $ 55.4 million expire in fiscal year 2021 and fiscal years 2018 to 2026 , respectively . included in the amounts above are certain net operating losses and other tax attribute assets acquired in conjunction with the greenpeak acquisition during the current fiscal year and acquisitions of sirenza microdevices , inc. ; silicon wave , inc. ; amalfi semiconductor inc. ; and the business combination in prior years . the utilization of these acquired domestic tax assets is subject to certain annual limitations as required under internal revenue code section 382 and similar state income tax provisions . our gross unrecognized tax benefits totaled $ 90.6 million as of april 1 , 2017 , $ 69.1 million as of april 2 , 2016 , and $ 59.4 million as of march 28 , 2015 . of these amounts , $ 84.4 million ( net of federal benefit of state taxes ) , $ 64.2 million ( net of federal benefit of state taxes ) , and $ 55.0 million ( net of federal benefit of state taxes ) as of april 1 , 2017 , april 2 , 2016 , and march 28 , 2015 , respectively , represent the amounts of unrecognized tax benefits that , if recognized , would impact the effective tax rate in each of the fiscal years . it is our policy to recognize interest and penalties related to uncertain tax positions as a component of income tax expense . during fiscal years 2017 , 2016 and 2015 , we recognized $ 2.1 million , $ 1.6 million and $ 1.2 million , respectively , of interest and penalties related to uncertain tax positions . accrued interest and penalties related to unrecognized tax benefits totaled $ 7.1 million , $ 5.0 million and $ 3.4 million as of april 1 , 2017 , april 2 , 2016 and march 28 , 2015 , respectively . within the next 12 months , we believe it is reasonably possible that only a minimal amount of gross unrecognized tax benefits will be reduced as a result of reductions for tax positions taken in prior years where the only uncertainty was related to the timing of the tax deduction . stock-based compensation under financial accounting standards board ( `` fasb `` ) asc 718 , “ compensation – stock compensation , ” stock-based compensation cost is measured at the grant date , based on the estimated fair value of the award using an option pricing model for stock options ( black-scholes ) and market price for restricted stock units , and is recognized as expense over the employee 's requisite service period . as of april 1 , 2017 , total remaining unearned compensation cost related to unvested restricted stock units and options was $ 70.5 million , which will be amortized over the weighted-average remaining service period of approximately 1.2 years . 40 story_separator_special_tag style= `` font-family : inherit ; font-size:10pt ; `` > 2016 . this year-over-year increase was due primarily to improvement in working capital , partially offset by lower adjustments for non-cash items . the adjustments for non-cash items were lower due primarily to

