under our subscription contracts with most of our direct advertisers and some of our independent agency customers , customers are contractually committed to a minimum monthly platform fee , which is payable on a monthly basis over the duration of the contract and is generally greater than one-half of our estimated monthly revenues from these customers , at the time the contract is signed . however , most of our subscription contracts with our network advertising agency customers do not include a committed minimum monthly platform fee . in general , if our contractual arrangement is with an advertising agency , the advertiser is not a party to the terms of the contract . accordingly , most advertisers through our agency customers do not have a commitment to use our services and the advertisers may be added or removed from our platform at the discretion of the respective agency . historically , our revenues earned from advertising agency customers have ranged between approximately one-third and one-half of our overall revenues . under our subscription contracts , we generally begin invoicing our customers the first day of the month following the execution of the contract . we generally invoice the greater of the minimum monthly platform fee or the percentage of advertising spend on our platform . the implementation process for new advertisers is typically four to six weeks ; however , we generally have not charged a separate implementation fee under our standard subscription contracts . our implementation and customer support personnel , as well as costs associated with our operating infrastructure , are included in our cost of revenues . we are leveraging our headcount and operating expenses to bring them in line with our revenues , while continuing to invest in our data center capacity and new platform features . 30 to grow revenues , we need to invest in ( 1 ) research and development to improve and further expand our platform and support for additional publishers and ( 2 ) sales activities by adding sales representatives globally to target new advertisers and agencies . these ac tivities will require us to make investments , particularly in research and development and sales and marketing , and if these investments do not generate additional customers or additional advertising spend managed by our platform , our future operating resu lts could be harmed . the majority of our revenues are derived from advertisers based in the united states . advertisers from outside of the united states represented 34 % , 31 % and 33 % of total revenues for 2017 , 2016 and 2015 , respectively . we were incorporated in 2006 and initially focused on building the core elements of our cloud-based platform , which we currently use to service our customers . in september 2007 , we launched marin enterprise , which targets large advertisers and agencies . we released marin professional edition in march 2011 , which targets mid-market advertisers and agencies . we have an iterative development process and we typically release new features every month . additionally , we have expanded internationally since our incorporation , opening our hamburg , paris and sydney offices in 2011 , our dublin and tokyo offices in 2012 and our shanghai office in 2013. we completed our acquisitions of socialmoov s.a.s . and nowspots , inc. , which conducted business as perfect audience , in february 2015 and june 2014 , respectively , to complement our product offerings . the acquisition of socialmoov is more fully described in note 3 to the consolidated financial statements . components of results of operations revenues we generate revenues principally from subscription contracts under which we provide advertisers with access to our search , social and display advertising management platform , either directly or through the advertiser 's relationship with an agency with whom we have a contract . under these subscription contracts , we charge fees generally based upon the amount of advertising spend that our customers manage through our platform . our search subscription contracts are generally one year or longer in length , while social and display contracts may vary in duration . under most of our contracts with advertising agencies , the advertiser is not a party to the terms of the contract . accordingly , most advertisers operating through network agencies do not have a minimum commitment to use our services , and the advertisers may be added or removed from our platform at the discretion of the respective network agency . under our subscription contracts with most direct advertisers and some of our independent agency customers , customers contractually commit to a minimum monthly platform fee , which is generally greater than one-half of our estimated monthly revenues from these customers , at the time the contract is signed . cost of revenues c ost of revenues primarily includes personnel costs , consisting of salaries , benefits , bonuses and stock-based compensation for employees associated with our cloud infrastructure and global services for implementation and ongoing customer service . other costs of revenues include fees paid to contractors who supplement our support and data center personnel , expenses related to third-party data centers , depreciation of data center equipment , amortization of internally developed software , amortization of intangible assets and allocated overhead . we intend to continue to invest in our global services and capacity of our hosting service infrastructure . we expect that this investment should not only expand the breadth and depth of our cross-channel , cross-device , enterprise marketing software platform but also increase the efficiency of how we deliver these solutions . the level and timing of investment in these areas could affect our cost of revenues in the future . story_separator_special_tag interest expense , net and other income , net replace_table_token_25_th other income , net , primarily consists of sublease income recorded under agreements for portions of our san francisco and portland office spaces , signed in december 2015 and june 2016 , respectively , as well as foreign currency transaction gains and losses . during 2016 , sublease income totaled $ 0.8 million , while foreign exchange losses were less than $ 0.1 million . provision for income taxes replace_table_token_26_th the provision for income taxes for 2016 totaled $ 1.4 million , primarily due to profits earned by our wholly owned foreign subsidiaries . quarterly results of operations the following table sets forth our unaudited quarterly consolidated statements of operations data for each of the eight quarters in the period ended december 31 , 2017. we have prepared the quarterly data on a basis consistent with our audited annual financial statements , including , in the opinion of management , all normal recurring adjustments necessary for the fair statement of the financial information contained in these statements . the historical results are not necessarily indicative of future results and should be read in conjunction with our consolidated financial statements and the related notes included elsewhere in this annual report on form 10-k. 39 replace_table_token_27_th ( 1 ) stock-based compensation expense included in the consolidated statements of operations data above was as follows : replace_table_token_28_th ( 2 ) amortization of intangible assets included in the consolidated statements of operations data above was as follows : replace_table_token_29_th 40 ( 3 ) restructuring related expenses included in the consolidated statements of operations data above was as follows : replace_table_token_30_th ( 4 ) all share and per share amounts of our common stock for all periods presented have been adjusted to reflect the one-for-seven reverse stock split of our issued and outstanding common stock , which took effect on october 5 , 2017. see note 2 of the consolidated financial statements for further information on this reverse stock split the following table sets forth our consolidated results of operations for the specified periods as a percentage of our revenues for those periods . percentage of revenue figures are rounded and therefore may not subtotal exactly . replace_table_token_31_th liquidity and capital resources since our incorporation in march 2006 , we have relied primarily on sales of our capital stock to fund our operating activities . from incorporation until our initial public offering ( “ ipo ” ) , we raised $ 105.7 million , net of related issuance costs , in funding through private placements of our preferred stock . in march and april 2013 , we raised net proceeds of $ 109.3 million in our ipo . from time to time , we have also utilized equipment lines and entered into capital lease arrangements to fund capital purchases . as of december 31 , 2017 , our principal sources of liquidity were our unrestricted cash and cash equivalents of $ 27.5 million and our capital lease arrangements . the approximate weighted average interest rate on our outstanding borrowings as of december 31 , 2017 was 6.0 % . our primary operating cash requirements include the payment of compensation and related costs , as well as costs for our facilities and information technology infrastructure . in december 2016 , we terminated our existing revolving credit facility , which provided access to borrowings at the lesser of $ 20.0 million or 80 % of eligible accounts receivable . no amounts were outstanding under this revolving credit facility at the date of termination , and we determined that it was no longer necessary . we maintain a $ 1.3 million irrevocable letter of credit to secure the non-cancelable lease for our corporate headquarters in san francisco , which was previously collateralized by the revolving credit 41 facility . following the termination of that facility , we were required to restrict $ 1.3 million of our cash and cash equivalents from use to secure this letter of c redit . this balance is reflected as restricted cash on the consolidated balance sheets of the accompanying consolidated financial statements . we presently maintain cash balances in our foreign subsidiaries . as of december 31 , 2017 , we had $ 27.5 million of unrestricted cash and cash equivalents in aggregate , of which $ 17.4 million was held by our foreign subsidiaries . on december 22 , 2017 , the united states enacted the tax cuts and jobs act ( “ tcja ” ) , which instituted fundamental changes to the taxation of multinational corporations . among these changes is a mandatory one-time transition tax on the deemed repatriation of the accumulated earnings of certain of our foreign subsidiaries . while our application of the accounting for the tcja is ongoing and currently uncertain , we provisionally estimate that no such tax will be due , as our foreign subsidiaries have accumulated significant losses . if funds held by our foreign subsidiaries were needed for our u.s. operations , we would be required to accrue tax liabilities to repatriate these funds . however , given the amount of our net operating loss carryovers in the united states , such repatriation will most likely not result in material u.s. cash tax payments within the next year . additionally , we do not believe that foreign withholding taxes associated with repatriating these funds would be material . based on our current and anticipated level of operations , including our internal forecasts and projections , we believe that our existing cash and cash equivalents will be sufficient to fund our operations for at least the next 12 months . our future capital requirements will depend on many factors , including our efforts to improve revenue performance , the timing and extent of spending to support product development efforts and the timing of introductions of new features and enhancements to our platform . to the extent that existing cash and cash equivalents are

cash provided by operating a ctivities in 2016 of $ 6.1 million was primarily the result of a net loss of $ 16.5 million , adjusted for non-cash expenses of $ 24.0 million , which primarily included depreciation , amortization , unrealized foreign currency gains or losses , stock-based compen sation expense and deferred income tax expenses or benefits . this was further offset by $ 0.1 million in contingent consideration paid for the socialmoov acquisition from 2015 , and a $ 1.4 million net change in working capital items , most notably ( 1 ) a decre ase in accounts receivable of $ 0.8 million due to the timing of related collections and changes in the estimated allowances for bad debts and credits ; ( 2 ) a decrease in prepaid expenses and other current assets , and other ( non-current ) assets , of $ 0.2 mill ion related to the timing of related disbursements ; ( 3 ) a decrease in deferred revenues of $ 0.6 million related to the timing of the collection of minimum fees at the start of our subscription agreements ; and ( 4 ) a net decrease in accounts payable and accr ued expenses and other current and non-current liabilities of $ 1.7 million due to the timing of related disbursements and customer advances . cash used in operating activities in 2015 of $ 7.1 million was primarily the result of a net loss of $ 33.3 million , offset by non-cash expenses of $ 29.2 million , which primarily included depreciation , amortization , unrealized foreign currency gain or loss , stock-based compensation expense and deferred income tax expenses or benefits .


 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.
     ```cash provided by operating a ctivities in 2016 of $ 6.1 million was primarily the result of a net loss of $ 16.5 million , adjusted for non-cash expenses of $ 24.0 million , which primarily included depreciation , amortization , unrealized foreign currency gains or losses , stock-based compen sation expense and deferred income tax expenses or benefits . this was further offset by $ 0.1 million in contingent consideration paid for the socialmoov acquisition from 2015 , and a $ 1.4 million net change in working capital items , most notably ( 1 ) a decre ase in accounts receivable of $ 0.8 million due to the timing of related collections and changes in the estimated allowances for bad debts and credits ; ( 2 ) a decrease in prepaid expenses and other current assets , and other ( non-current ) assets , of $ 0.2 mill ion related to the timing of related disbursements ; ( 3 ) a decrease in deferred revenues of $ 0.6 million related to the timing of the collection of minimum fees at the start of our subscription agreements ; and ( 4 ) a net decrease in accounts payable and accr ued expenses and other current and non-current liabilities of $ 1.7 million due to the timing of related disbursements and customer advances . cash used in operating activities in 2015 of $ 7.1 million was primarily the result of a net loss of $ 33.3 million , offset by non-cash expenses of $ 29.2 million , which primarily included depreciation , amortization , unrealized foreign currency gain or loss , stock-based compensation expense and deferred income tax expenses or benefits .
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 Suspicious Activity Report : under our subscription contracts with most of our direct advertisers and some of our independent agency customers , customers are contractually committed to a minimum monthly platform fee , which is payable on a monthly basis over the duration of the contract and is generally greater than one-half of our estimated monthly revenues from these customers , at the time the contract is signed . however , most of our subscription contracts with our network advertising agency customers do not include a committed minimum monthly platform fee . in general , if our contractual arrangement is with an advertising agency , the advertiser is not a party to the terms of the contract . accordingly , most advertisers through our agency customers do not have a commitment to use our services and the advertisers may be added or removed from our platform at the discretion of the respective agency . historically , our revenues earned from advertising agency customers have ranged between approximately one-third and one-half of our overall revenues . under our subscription contracts , we generally begin invoicing our customers the first day of the month following the execution of the contract . we generally invoice the greater of the minimum monthly platform fee or the percentage of advertising spend on our platform . the implementation process for new advertisers is typically four to six weeks ; however , we generally have not charged a separate implementation fee under our standard subscription contracts . our implementation and customer support personnel , as well as costs associated with our operating infrastructure , are included in our cost of revenues . we are leveraging our headcount and operating expenses to bring them in line with our revenues , while continuing to invest in our data center capacity and new platform features . 30 to grow revenues , we need to invest in ( 1 ) research and development to improve and further expand our platform and support for additional publishers and ( 2 ) sales activities by adding sales representatives globally to target new advertisers and agencies . these ac tivities will require us to make investments , particularly in research and development and sales and marketing , and if these investments do not generate additional customers or additional advertising spend managed by our platform , our future operating resu lts could be harmed . the majority of our revenues are derived from advertisers based in the united states . advertisers from outside of the united states represented 34 % , 31 % and 33 % of total revenues for 2017 , 2016 and 2015 , respectively . we were incorporated in 2006 and initially focused on building the core elements of our cloud-based platform , which we currently use to service our customers . in september 2007 , we launched marin enterprise , which targets large advertisers and agencies . we released marin professional edition in march 2011 , which targets mid-market advertisers and agencies . we have an iterative development process and we typically release new features every month . additionally , we have expanded internationally since our incorporation , opening our hamburg , paris and sydney offices in 2011 , our dublin and tokyo offices in 2012 and our shanghai office in 2013. we completed our acquisitions of socialmoov s.a.s . and nowspots , inc. , which conducted business as perfect audience , in february 2015 and june 2014 , respectively , to complement our product offerings . the acquisition of socialmoov is more fully described in note 3 to the consolidated financial statements . components of results of operations revenues we generate revenues principally from subscription contracts under which we provide advertisers with access to our search , social and display advertising management platform , either directly or through the advertiser 's relationship with an agency with whom we have a contract . under these subscription contracts , we charge fees generally based upon the amount of advertising spend that our customers manage through our platform . our search subscription contracts are generally one year or longer in length , while social and display contracts may vary in duration . under most of our contracts with advertising agencies , the advertiser is not a party to the terms of the contract . accordingly , most advertisers operating through network agencies do not have a minimum commitment to use our services , and the advertisers may be added or removed from our platform at the discretion of the respective network agency . under our subscription contracts with most direct advertisers and some of our independent agency customers , customers contractually commit to a minimum monthly platform fee , which is generally greater than one-half of our estimated monthly revenues from these customers , at the time the contract is signed . cost of revenues c ost of revenues primarily includes personnel costs , consisting of salaries , benefits , bonuses and stock-based compensation for employees associated with our cloud infrastructure and global services for implementation and ongoing customer service . other costs of revenues include fees paid to contractors who supplement our support and data center personnel , expenses related to third-party data centers , depreciation of data center equipment , amortization of internally developed software , amortization of intangible assets and allocated overhead . we intend to continue to invest in our global services and capacity of our hosting service infrastructure . we expect that this investment should not only expand the breadth and depth of our cross-channel , cross-device , enterprise marketing software platform but also increase the efficiency of how we deliver these solutions . the level and timing of investment in these areas could affect our cost of revenues in the future . story_separator_special_tag interest expense , net and other income , net replace_table_token_25_th other income , net , primarily consists of sublease income recorded under agreements for portions of our san francisco and portland office spaces , signed in december 2015 and june 2016 , respectively , as well as foreign currency transaction gains and losses . during 2016 , sublease income totaled $ 0.8 million , while foreign exchange losses were less than $ 0.1 million . provision for income taxes replace_table_token_26_th the provision for income taxes for 2016 totaled $ 1.4 million , primarily due to profits earned by our wholly owned foreign subsidiaries . quarterly results of operations the following table sets forth our unaudited quarterly consolidated statements of operations data for each of the eight quarters in the period ended december 31 , 2017. we have prepared the quarterly data on a basis consistent with our audited annual financial statements , including , in the opinion of management , all normal recurring adjustments necessary for the fair statement of the financial information contained in these statements . the historical results are not necessarily indicative of future results and should be read in conjunction with our consolidated financial statements and the related notes included elsewhere in this annual report on form 10-k. 39 replace_table_token_27_th ( 1 ) stock-based compensation expense included in the consolidated statements of operations data above was as follows : replace_table_token_28_th ( 2 ) amortization of intangible assets included in the consolidated statements of operations data above was as follows : replace_table_token_29_th 40 ( 3 ) restructuring related expenses included in the consolidated statements of operations data above was as follows : replace_table_token_30_th ( 4 ) all share and per share amounts of our common stock for all periods presented have been adjusted to reflect the one-for-seven reverse stock split of our issued and outstanding common stock , which took effect on october 5 , 2017. see note 2 of the consolidated financial statements for further information on this reverse stock split the following table sets forth our consolidated results of operations for the specified periods as a percentage of our revenues for those periods . percentage of revenue figures are rounded and therefore may not subtotal exactly . replace_table_token_31_th liquidity and capital resources since our incorporation in march 2006 , we have relied primarily on sales of our capital stock to fund our operating activities . from incorporation until our initial public offering ( “ ipo ” ) , we raised $ 105.7 million , net of related issuance costs , in funding through private placements of our preferred stock . in march and april 2013 , we raised net proceeds of $ 109.3 million in our ipo . from time to time , we have also utilized equipment lines and entered into capital lease arrangements to fund capital purchases . as of december 31 , 2017 , our principal sources of liquidity were our unrestricted cash and cash equivalents of $ 27.5 million and our capital lease arrangements . the approximate weighted average interest rate on our outstanding borrowings as of december 31 , 2017 was 6.0 % . our primary operating cash requirements include the payment of compensation and related costs , as well as costs for our facilities and information technology infrastructure . in december 2016 , we terminated our existing revolving credit facility , which provided access to borrowings at the lesser of $ 20.0 million or 80 % of eligible accounts receivable . no amounts were outstanding under this revolving credit facility at the date of termination , and we determined that it was no longer necessary . we maintain a $ 1.3 million irrevocable letter of credit to secure the non-cancelable lease for our corporate headquarters in san francisco , which was previously collateralized by the revolving credit 41 facility . following the termination of that facility , we were required to restrict $ 1.3 million of our cash and cash equivalents from use to secure this letter of c redit . this balance is reflected as restricted cash on the consolidated balance sheets of the accompanying consolidated financial statements . we presently maintain cash balances in our foreign subsidiaries . as of december 31 , 2017 , we had $ 27.5 million of unrestricted cash and cash equivalents in aggregate , of which $ 17.4 million was held by our foreign subsidiaries . on december 22 , 2017 , the united states enacted the tax cuts and jobs act ( “ tcja ” ) , which instituted fundamental changes to the taxation of multinational corporations . among these changes is a mandatory one-time transition tax on the deemed repatriation of the accumulated earnings of certain of our foreign subsidiaries . while our application of the accounting for the tcja is ongoing and currently uncertain , we provisionally estimate that no such tax will be due , as our foreign subsidiaries have accumulated significant losses . if funds held by our foreign subsidiaries were needed for our u.s. operations , we would be required to accrue tax liabilities to repatriate these funds . however , given the amount of our net operating loss carryovers in the united states , such repatriation will most likely not result in material u.s. cash tax payments within the next year . additionally , we do not believe that foreign withholding taxes associated with repatriating these funds would be material . based on our current and anticipated level of operations , including our internal forecasts and projections , we believe that our existing cash and cash equivalents will be sufficient to fund our operations for at least the next 12 months . our future capital requirements will depend on many factors , including our efforts to improve revenue performance , the timing and extent of spending to support product development efforts and the timing of introductions of new features and enhancements to our platform . to the extent that existing cash and cash equivalents are

