we began a new limited time offering ( `` lto `` ) program where we plan to feature a new premium burger every six months . the shackmeister burger launched in january 2015 , the first major burger to debut at shake shack since the smokeshack in april 2012 , and was a huge success , driving positive shifts in mix at a premium price point . we retired the shackmeister burger in july 2015 and introduced the roadside shack , which was 49 | shake shack inc. form 10-k met with similar success . in january 2015 , we also launched the shake of the week , an extension of our custard calendar where guests can enjoy seasonally changing flavors in creamy and deliciously dense shakes . we also made great strides this past year in our mission to stand for something good . in march 2015 , we announced that all burger and hot dog buns served at shacks around the world will be non-gmo and , in december 2015 , we announced our commitment to transition to the use of cage-free eggs in our entire menu by the end of 2016. our fiscal 2015 results demonstrate the success of our various growth strategies . our brand power and thoughtful approach to growth have resulted in strong shack performance across a variety of geographic areas and formats . some financial highlights for fiscal 2015 include : ▪ total revenue increased 60.8 % to $ 190.6 million . ▪ shack sales increased 63.5 % to $ 183.2 million . ▪ same-shack sales increased 13.3 % . ▪ shack-level operating profit margin * , a non-gaap measure , increased 96.8 % to $ 52.9 million , or 28.9 % of shack sales , a 490 basis point increase over prior year . ▪ adjusted ebitda * , a non-gaap measure , increased 117.7 % to $ 41.1 million . ▪ net loss was $ ( 8.8 ) million , or $ ( 0.65 ) per diluted share . ▪ adjusted pro forma net income * , a non-gaap measure , increase d 154.9 % to $ 12.0 million , or $ 0.32 per fully exchanged and diluted share . ▪ 21 system-wide shack openings , comprised of 13 domestic company-operated shacks and eight international licensed shacks , representing a 33.3 % increase in system-wide shack count . * shack-level operating profit and adjusted ebitda are non-gaap measures . reconciliations of shack-level operating profit to operating income and adjusted ebitda to net income , the most directly comparable financial measures presented in accordance with gaap , are set forth on pages 41 and 42. trends in our business we hit the ground running in fiscal 2016 with a strategic focus on driving long-term value creation—continuing to build the community gathering places our guests love , while innovating around our core menu , and further investing in the unique culture that differentiates and drives our company forward . we plan to continue to expand our business , drive shack sales and enhance our competitive positioning by executing on the following strategies : ( i ) opening new domestic company-operated shacks ; ( ii ) capitalizing on our outsized brand awareness ; ( iii ) growing same-shack sales ; and ( iv ) opportunistically increasing our licensed shacks domestically and abroad . our primary means of growth will be opening new domestic company-operated shacks and we believe we have a strong pipeline of shacks for fiscal 2016. this year we will launch in four new major markets—los angeles , phoenix/scottsdale , dallas and minneapolis . we will also be growing our presence in existing markets with new shacks planned in our home market , in herald square and the fulton transit center in manhattan , as well as in queens , long island and other east coast markets from boston to washington d.c. internationally , we opened our first shack in oman in february 2016 and have great locations planned in the middle east , london , japan and now south korea . we also plan to open one domestic licensed shack in 2016 in las vegas ' t-mobile arena . while we believe that there is still ample room to grow our shack-base in new york city , the majority of our domestic company-operated shack growth is expected to occur outside of new york city . because our historical average unit volumes ( `` auvs `` ) have been higher , due in large part to our concentration in urban markets , historical domestic company-operated auvs are not a good measure of expected sales at new shacks . as we continue to expand outside of our established markets , we expect average annual shack sales to be between $ 2.8 million and $ 3.2 million per shack with shack-level operating profit margins in the 18 % to 22 % range ( `` target-volume shacks `` ) , which will reduce overall company-operated shack auvs and shack-l evel operating profit margins . however , given the visibility we currently have into our pipeline for fiscal 2016 , we expect the new shacks to be opened in fiscal 2016 to average at least $ 3.3 million in annual shack sales and achieve at least 22 % shack-level operating profit margins . shake shack inc. form 10-k | 50 we will continue to embrace our fine-dining heritage and , although our core menu remains focused , we plan to continue supplementing it with targeted innovation . in january 2016 , we launched the chick ' n shack at all domestic company-operated shacks . since july 2015 , this item was only offered in our three brooklyn , ny shacks . the guest feedback was extremely positive and it became a top five selling menu item , which gave us the confidence to plan a wider rollout . story_separator_special_tag pre-opening costs were $ 5.4 million in fiscal 2015 , including $ 1.3 million of deferred rent expense , compared to $ 6.1 million in fiscal 2014 , a decrease of $ 0.7 million or 11.1 % , primarily due to a decrease in deferred rent expense and the timing of new domestic company-operated shacks expected to open . pre-opening costs were $ 6.1 million in fiscal 2014 , including $ 2.1 million of deferred rent expense , compared to $ 2.3 million in fiscal 2013 , an increase of $ 3.8 million or 161.6 % , primarily the result of an increase in the number of new domestic company-operated shacks opened in fiscal 2014 as well as an increase in the number of new domestic company-operated shacks opened in new geographic markets during fiscal 2014 and planned openings in the first quarter of fiscal 2015 . 55 | shake shack inc. form 10-k loss on disposal of property and equipment loss on disposal of property and equipment represents the net book value of assets that have been retired and consists primarily of furniture and fixtures that were replaced in the normal course of business . for all periods presented , the loss on disposal of property and equipment was not material . interest expense interest expense primarily consists of interest on the revolving credit facility as well as the amortization of deferred financing costs incurred in connection with the revolving credit facility . interest expense was $ 0.3 million in fiscal 2015 compared to $ 0.4 million in fiscal 2014 , a decrease of $ 0.1 million or 10.5 % . interest expense was $ 0.4 million in fiscal 2014 compared to $ 0.1 million in fiscal 2013 , an increase of $ 0.3 million or 598.1 % . this increase was the result of additional borrowings under our revolving credit facility . income tax expense as a result of the ipo and organizational transactions , we became the sole managing member of sse holdings , which is treated as a partnership for u.s. federal and most applicable state and local income tax purposes . as a partnership , sse holdings is not subject to u.s. federal and certain state and local income taxes . any taxable income or loss generated by sse holdings is passed through to and included in the taxable income or loss of its members , including us , on a pro rata basis . we are subject to u.s. federal income taxes , in addition to state and local income taxes with respect to our allocable share of any taxable income or loss of sse holdings , as well as any stand-alone income or loss generated by shake shack inc. we are also subject to withholding taxes in foreign jurisdictions . for fiscal 2014 and 2013 , the reported income tax expense reflects that of sse holdings , our predecessor for financial reporting purposes , and relates solely to foreign withholding taxes and certain llc entity-level taxes . income tax expense was $ 3.3 million in fiscal 2015 compared to $ 0.7 million in fiscal 2014 . our effective income tax rate increased to 51.4 % in fiscal 2015 from 23.8 % in fiscal 2014 . the increase in both the amount of income tax expense and our effective income tax rate is primarily due to the ipo and organizational transactions . in fiscal 2014 , we were only subject to certain llc entity-level taxes and foreign withholding taxes , whereas in fiscal 2015 we were also subject to u.s. federal , state and local income taxes on our allocable share of any taxable income or loss generated by sse holdings subsequent to the ipo and organizational transactions . as the non-recurring compensation expenses and other ipo-related expenses were incurred in the period prior to the organizational transactions , we are not entitled to any tax benefits related to those expenses . this resulted in a high effective tax rate when compared to our consolidated pre-tax income for fiscal 2015 . income tax expense was $ 0.7 million in fiscal 2014 compared to $ 0.5 million in fiscal 2013 . our effective income tax rate increased to 23.8 % in fiscal 2014 from 7.8 % in fiscal 2013 , primarily due to increased foreign withholding taxes resulting from increased licensing revenue . net income attributable to non-controlling interests although we had a minority economic interest in sse holdings as a result of the ipo and organizational transactions , we became the sole managing member of sse holdings and have the sole voting power in , and control the management of , sse holdings . accordingly , we began consolidating the financial results of sse holdings and reporting a non-controlling interest on our consolidated statement of income , representing the portion of net income attributable to the continuing sse equity owners . in connection with the ipo and organizational transactions , the sse holdings llc agreement was amended to , among other things , ( i ) provide for a new single class of common membership interests in sse holdings , the llc interests , and ( ii ) exchange all of the then-existing membership interests of the original sse equity owners for llc interests . the llc agreement also provides that holders of llc interests may , from time to time , require sse holdings to redeem all or a portion of their llc interests for newly-issued shares of class a common stock on a one-for-one basis . in connection with any redemption or exchange , we will receive a corresponding number of llc interests , increasing our total ownership interest in sse holdings . following the completion of the organizational transactions , we owned 33.3 % of sse holdings . the continuing sse equity owners subsequent to the merger shake shack inc. form 10-k | 56 owned the remaining 66.7 % of sse holdings . as of december 30 , 2015 , we

sources and uses of cash our primary sources of liquidity are cash from operations , cash on hand , and availability under our revolving credit facility . as of december 30 , 2015 , we maintained a cash balance of $ 70.8 million and had $ 19.9 million of availability under our revolving credit facility . our primary requirements for liquidity are to fund our working capital needs , operating lease obligations , capital expenditures and general corporate needs . our requirements for working capital are not significant because our guests pay for their food and beverage purchases in cash or on debit or credit cards at the time of the sale and we are able to sell many of our inventory items before payment is due to the supplier of such items . our ongoing capital expenditures are principally related to opening new shacks , existing shack capital investments ( both for remodels and maintenance ) , as well as investments in our corporate infrastructure . in addition , we are obligated to make payments to the continuing sse equity owners under the tax receivable agreement . as of december 30 , 2015 , such obligations totaled $ 173.1 million . although the amount of any payments that must be made under the tax receivable agreement may be significant , the timing of these payments will vary and will generally be limited to one payment per member per year . the amount of such payments are also limited to the extent we utilize the related deferred tax assets . the payments that we are required to make will generally reduce the amount of overall cash that might have otherwise been available to us or to sse holdings , but we expect the cash tax savings we will realize from the utilization of the related deferred tax assets to fund the required payments .


 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.
     ```sources and uses of cash our primary sources of liquidity are cash from operations , cash on hand , and availability under our revolving credit facility . as of december 30 , 2015 , we maintained a cash balance of $ 70.8 million and had $ 19.9 million of availability under our revolving credit facility . our primary requirements for liquidity are to fund our working capital needs , operating lease obligations , capital expenditures and general corporate needs . our requirements for working capital are not significant because our guests pay for their food and beverage purchases in cash or on debit or credit cards at the time of the sale and we are able to sell many of our inventory items before payment is due to the supplier of such items . our ongoing capital expenditures are principally related to opening new shacks , existing shack capital investments ( both for remodels and maintenance ) , as well as investments in our corporate infrastructure . in addition , we are obligated to make payments to the continuing sse equity owners under the tax receivable agreement . as of december 30 , 2015 , such obligations totaled $ 173.1 million . although the amount of any payments that must be made under the tax receivable agreement may be significant , the timing of these payments will vary and will generally be limited to one payment per member per year . the amount of such payments are also limited to the extent we utilize the related deferred tax assets . the payments that we are required to make will generally reduce the amount of overall cash that might have otherwise been available to us or to sse holdings , but we expect the cash tax savings we will realize from the utilization of the related deferred tax assets to fund the required payments .
```    
 Suspicious Activity Report : we began a new limited time offering ( `` lto `` ) program where we plan to feature a new premium burger every six months . the shackmeister burger launched in january 2015 , the first major burger to debut at shake shack since the smokeshack in april 2012 , and was a huge success , driving positive shifts in mix at a premium price point . we retired the shackmeister burger in july 2015 and introduced the roadside shack , which was 49 | shake shack inc. form 10-k met with similar success . in january 2015 , we also launched the shake of the week , an extension of our custard calendar where guests can enjoy seasonally changing flavors in creamy and deliciously dense shakes . we also made great strides this past year in our mission to stand for something good . in march 2015 , we announced that all burger and hot dog buns served at shacks around the world will be non-gmo and , in december 2015 , we announced our commitment to transition to the use of cage-free eggs in our entire menu by the end of 2016. our fiscal 2015 results demonstrate the success of our various growth strategies . our brand power and thoughtful approach to growth have resulted in strong shack performance across a variety of geographic areas and formats . some financial highlights for fiscal 2015 include : ▪ total revenue increased 60.8 % to $ 190.6 million . ▪ shack sales increased 63.5 % to $ 183.2 million . ▪ same-shack sales increased 13.3 % . ▪ shack-level operating profit margin * , a non-gaap measure , increased 96.8 % to $ 52.9 million , or 28.9 % of shack sales , a 490 basis point increase over prior year . ▪ adjusted ebitda * , a non-gaap measure , increased 117.7 % to $ 41.1 million . ▪ net loss was $ ( 8.8 ) million , or $ ( 0.65 ) per diluted share . ▪ adjusted pro forma net income * , a non-gaap measure , increase d 154.9 % to $ 12.0 million , or $ 0.32 per fully exchanged and diluted share . ▪ 21 system-wide shack openings , comprised of 13 domestic company-operated shacks and eight international licensed shacks , representing a 33.3 % increase in system-wide shack count . * shack-level operating profit and adjusted ebitda are non-gaap measures . reconciliations of shack-level operating profit to operating income and adjusted ebitda to net income , the most directly comparable financial measures presented in accordance with gaap , are set forth on pages 41 and 42. trends in our business we hit the ground running in fiscal 2016 with a strategic focus on driving long-term value creation—continuing to build the community gathering places our guests love , while innovating around our core menu , and further investing in the unique culture that differentiates and drives our company forward . we plan to continue to expand our business , drive shack sales and enhance our competitive positioning by executing on the following strategies : ( i ) opening new domestic company-operated shacks ; ( ii ) capitalizing on our outsized brand awareness ; ( iii ) growing same-shack sales ; and ( iv ) opportunistically increasing our licensed shacks domestically and abroad . our primary means of growth will be opening new domestic company-operated shacks and we believe we have a strong pipeline of shacks for fiscal 2016. this year we will launch in four new major markets—los angeles , phoenix/scottsdale , dallas and minneapolis . we will also be growing our presence in existing markets with new shacks planned in our home market , in herald square and the fulton transit center in manhattan , as well as in queens , long island and other east coast markets from boston to washington d.c. internationally , we opened our first shack in oman in february 2016 and have great locations planned in the middle east , london , japan and now south korea . we also plan to open one domestic licensed shack in 2016 in las vegas ' t-mobile arena . while we believe that there is still ample room to grow our shack-base in new york city , the majority of our domestic company-operated shack growth is expected to occur outside of new york city . because our historical average unit volumes ( `` auvs `` ) have been higher , due in large part to our concentration in urban markets , historical domestic company-operated auvs are not a good measure of expected sales at new shacks . as we continue to expand outside of our established markets , we expect average annual shack sales to be between $ 2.8 million and $ 3.2 million per shack with shack-level operating profit margins in the 18 % to 22 % range ( `` target-volume shacks `` ) , which will reduce overall company-operated shack auvs and shack-l evel operating profit margins . however , given the visibility we currently have into our pipeline for fiscal 2016 , we expect the new shacks to be opened in fiscal 2016 to average at least $ 3.3 million in annual shack sales and achieve at least 22 % shack-level operating profit margins . shake shack inc. form 10-k | 50 we will continue to embrace our fine-dining heritage and , although our core menu remains focused , we plan to continue supplementing it with targeted innovation . in january 2016 , we launched the chick ' n shack at all domestic company-operated shacks . since july 2015 , this item was only offered in our three brooklyn , ny shacks . the guest feedback was extremely positive and it became a top five selling menu item , which gave us the confidence to plan a wider rollout . story_separator_special_tag pre-opening costs were $ 5.4 million in fiscal 2015 , including $ 1.3 million of deferred rent expense , compared to $ 6.1 million in fiscal 2014 , a decrease of $ 0.7 million or 11.1 % , primarily due to a decrease in deferred rent expense and the timing of new domestic company-operated shacks expected to open . pre-opening costs were $ 6.1 million in fiscal 2014 , including $ 2.1 million of deferred rent expense , compared to $ 2.3 million in fiscal 2013 , an increase of $ 3.8 million or 161.6 % , primarily the result of an increase in the number of new domestic company-operated shacks opened in fiscal 2014 as well as an increase in the number of new domestic company-operated shacks opened in new geographic markets during fiscal 2014 and planned openings in the first quarter of fiscal 2015 . 55 | shake shack inc. form 10-k loss on disposal of property and equipment loss on disposal of property and equipment represents the net book value of assets that have been retired and consists primarily of furniture and fixtures that were replaced in the normal course of business . for all periods presented , the loss on disposal of property and equipment was not material . interest expense interest expense primarily consists of interest on the revolving credit facility as well as the amortization of deferred financing costs incurred in connection with the revolving credit facility . interest expense was $ 0.3 million in fiscal 2015 compared to $ 0.4 million in fiscal 2014 , a decrease of $ 0.1 million or 10.5 % . interest expense was $ 0.4 million in fiscal 2014 compared to $ 0.1 million in fiscal 2013 , an increase of $ 0.3 million or 598.1 % . this increase was the result of additional borrowings under our revolving credit facility . income tax expense as a result of the ipo and organizational transactions , we became the sole managing member of sse holdings , which is treated as a partnership for u.s. federal and most applicable state and local income tax purposes . as a partnership , sse holdings is not subject to u.s. federal and certain state and local income taxes . any taxable income or loss generated by sse holdings is passed through to and included in the taxable income or loss of its members , including us , on a pro rata basis . we are subject to u.s. federal income taxes , in addition to state and local income taxes with respect to our allocable share of any taxable income or loss of sse holdings , as well as any stand-alone income or loss generated by shake shack inc. we are also subject to withholding taxes in foreign jurisdictions . for fiscal 2014 and 2013 , the reported income tax expense reflects that of sse holdings , our predecessor for financial reporting purposes , and relates solely to foreign withholding taxes and certain llc entity-level taxes . income tax expense was $ 3.3 million in fiscal 2015 compared to $ 0.7 million in fiscal 2014 . our effective income tax rate increased to 51.4 % in fiscal 2015 from 23.8 % in fiscal 2014 . the increase in both the amount of income tax expense and our effective income tax rate is primarily due to the ipo and organizational transactions . in fiscal 2014 , we were only subject to certain llc entity-level taxes and foreign withholding taxes , whereas in fiscal 2015 we were also subject to u.s. federal , state and local income taxes on our allocable share of any taxable income or loss generated by sse holdings subsequent to the ipo and organizational transactions . as the non-recurring compensation expenses and other ipo-related expenses were incurred in the period prior to the organizational transactions , we are not entitled to any tax benefits related to those expenses . this resulted in a high effective tax rate when compared to our consolidated pre-tax income for fiscal 2015 . income tax expense was $ 0.7 million in fiscal 2014 compared to $ 0.5 million in fiscal 2013 . our effective income tax rate increased to 23.8 % in fiscal 2014 from 7.8 % in fiscal 2013 , primarily due to increased foreign withholding taxes resulting from increased licensing revenue . net income attributable to non-controlling interests although we had a minority economic interest in sse holdings as a result of the ipo and organizational transactions , we became the sole managing member of sse holdings and have the sole voting power in , and control the management of , sse holdings . accordingly , we began consolidating the financial results of sse holdings and reporting a non-controlling interest on our consolidated statement of income , representing the portion of net income attributable to the continuing sse equity owners . in connection with the ipo and organizational transactions , the sse holdings llc agreement was amended to , among other things , ( i ) provide for a new single class of common membership interests in sse holdings , the llc interests , and ( ii ) exchange all of the then-existing membership interests of the original sse equity owners for llc interests . the llc agreement also provides that holders of llc interests may , from time to time , require sse holdings to redeem all or a portion of their llc interests for newly-issued shares of class a common stock on a one-for-one basis . in connection with any redemption or exchange , we will receive a corresponding number of llc interests , increasing our total ownership interest in sse holdings . following the completion of the organizational transactions , we owned 33.3 % of sse holdings . the continuing sse equity owners subsequent to the merger shake shack inc. form 10-k | 56 owned the remaining 66.7 % of sse holdings . as of december 30 , 2015 , we

