Table of Contents
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31,September 29, 2021
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from _______ to ______
Commission file number: 001-36823
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SHAKE SHACK INC.
(Exact name of registrant as specified in its charter)
Delaware47-1941186
(State or other jurisdiction of
incorporation or organization)
(IRS Employer
Identification No.)
225 Varick Street
Suite 301
New York,New York10014
(Address of principal executive offices)(Zip Code)
(646) 747-7200
(Registrant's telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act
Title of each classTrading symbol(s)Name of each exchange on which registered
Class A Common Stock, par value $0.001SHAKNew York Stock Exchange

Indicate by check mark if the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes o No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted and posted pursuant to Rule-405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). þ Yes o No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large Accelerated FilerAccelerated filer  
Non-accelerated filer  Smaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes No
As of April 28,October 27, 2021, there were 39,103,61439,140,045 shares of Class A common stock outstanding and 2,921,5882,921,587 shares of Class B common stock outstanding.



SHAKE SHACK INC.
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Table of Contents
Cautionary Note Regarding Forward-Looking Information
This Quarterly Report on Form 10-Q ("Form 10-Q") contains forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995 ("PSLRA"), which are subject to known and unknown risks, uncertainties and other important factors that may cause actual results to be materially different from the statements made herein. All statements other than statements of historical fact included in this Form 10-Q are forward-looking statements.statements, including, but not limited to, statements about our growth, strategic plan, and our liquidity. Forward-looking statements discuss our current expectations and projections relating to our financial position, results of operations, plans, objectives, future performance and business. You can identify forward-looking statements by the fact that they do not relate strictly to historical or current facts. These statements may include words such as "aim," "anticipate," "believe," "estimate," "expect," "forecast," "future," "intend," "outlook," "potential," "project," "projection," "plan," "seek," "may," "could," "would," "will," "should," "can," "can have," "likely," the negatives thereof and other similar expressions.
All forward-looking statements are expressly qualified in their entirety by these cautionary statements. Some of the factors which could cause results to differ materially from the Company's expectations include the continuing impact of the COVID-19 pandemic, including the potential impact of any COVID-19 variants, the Company's ability to develop and open new Shacks on a timely basis, increased costs or shortages or interruptions in the supply and delivery of our products, increased labor costs or shortages, the Company's management of its digital capabilities and expansion into delivery, our ability to maintain and grow sales at our existing Shacks, and risks relating to the restaurant industry generally. You should evaluate all forward-looking statements made in this Form 10-Q in the context of the risks and uncertainties disclosed in our Annual Report on Form 10-K for the fiscal year ended December 30, 2020 as filed with the Securities and Exchange Commission (the "SEC").
The forward-looking statements included in this Form 10-Q are made only as of the date hereof. We undertakeThe Company undertakes no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.
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PART I – FINANCIAL INFORMATION
Item 1. Financial Statements (Unaudited).
Page
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SHAKE SHACK INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(UNAUDITED)
(in thousands, except share and per share amounts)
March 31
2021
December 30
2020
September 29
2021
December 30
2020
ASSETSASSETSASSETS
Current assets:Current assets:Current assets:
Cash and cash equivalents$374,999 $146,873 Cash and cash equivalents$321,421 $146,873 
Marketable securities40,914 36,887 Marketable securities80,082 36,887 
Accounts receivable, net8,838 9,464 Accounts receivable, net11,311 9,464 
Inventories2,734 2,888 Inventories3,525 2,888 
Prepaid expenses and other current assets7,805 7,074 Prepaid expenses and other current assets2,841 7,074 
Total current assets435,290 203,186 Total current assets419,180 203,186 
Property and equipment, net of accumulated depreciation of $179,226 and $166,156, respectively348,580 336,541 
Property and equipment, net of accumulated depreciation of $207,763 and $166,156, respectivelyProperty and equipment, net of accumulated depreciation of $207,763 and $166,156, respectively370,016 336,541 
Operating lease assetsOperating lease assets312,087 306,317 Operating lease assets338,886 306,317 
Deferred income taxes, netDeferred income taxes, net299,838 287,007 Deferred income taxes, net300,818 287,007 
Other assetsOther assets11,794 12,297 Other assets11,402 12,297 
TOTAL ASSETSTOTAL ASSETS$1,407,589 $1,145,348 TOTAL ASSETS$1,440,302 $1,145,348 
LIABILITIES AND STOCKHOLDERS' EQUITYLIABILITIES AND STOCKHOLDERS' EQUITYLIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:Current liabilities:Current liabilities:
Accounts payable$24,307 $23,487 Accounts payable$17,841 $23,487 
Accrued expenses28,774 25,920 Accrued expenses34,165 25,920 
Accrued wages and related liabilities13,306 10,441 Accrued wages and related liabilities14,169 10,441 
Operating lease liabilities, current37,275 35,657 Operating lease liabilities, current38,811 35,657 
Other current liabilities15,087 14,200 Other current liabilities13,273 14,200 
Total current liabilities118,749 109,705 Total current liabilities118,259 109,705 
Long-term debtLong-term debt242,875 Long-term debt243,280 — 
Long-term operating lease liabilitiesLong-term operating lease liabilities349,670 343,736 Long-term operating lease liabilities378,686 343,736 
Liabilities under tax receivable agreement, net of current portionLiabilities under tax receivable agreement, net of current portion234,048 232,954 Liabilities under tax receivable agreement, net of current portion234,048 232,954 
Other long-term liabilitiesOther long-term liabilities22,297 24,460 Other long-term liabilities22,750 24,460 
Total liabilitiesTotal liabilities967,639 710,855 Total liabilities997,023 710,855 
Commitments and contingencies (Note 13)Commitments and contingencies (Note 13)00Commitments and contingencies (Note 13)00
Stockholders' equity:Stockholders' equity:Stockholders' equity:
Preferred stock, no par value—10,000,000 shares authorized; none issued and outstanding as of March 31, 2021 and December 30, 2020.Preferred stock, no par value—10,000,000 shares authorized; none issued and outstanding as of September 29, 2021 and December 30, 2020.— — 
Class A common stock, $0.001 par value—200,000,000 shares authorized; 39,103,239 and 38,717,790 shares issued and outstanding as of March 31, 2021 and December 30, 2020, respectively.39 39 Class A common stock, $0.001 par value—200,000,000 shares authorized; 39,139,379 and 38,717,790 shares issued and outstanding as of September 29, 2021 and December 30, 2020, respectively.39 39 
Class B common stock, $0.001 par value—35,000,000 shares authorized; 2,921,588 and 2,951,188 shares issued and outstanding as of March 31, 2021 and December 30, 2020, respectively.Class B common stock, $0.001 par value—35,000,000 shares authorized; 2,921,587 and 2,951,188 shares issued and outstanding as of September 29, 2021 and December 30, 2020, respectively.
Additional paid-in capital400,371 395,067 Additional paid-in capital403,535 395,067 
Retained earnings13,518 12,209 Retained earnings13,284 12,209 
Accumulated other comprehensive incomeAccumulated other comprehensive income
Total stockholders' equity attributable to Shake Shack Inc.413,933 407,321 Total stockholders' equity attributable to Shake Shack Inc.416,862 407,321 
Non-controlling interestsNon-controlling interests26,017 27,172 Non-controlling interests26,417 27,172 
Total equityTotal equity439,950 434,493 Total equity443,279 434,493 
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITYTOTAL LIABILITIES AND STOCKHOLDERS' EQUITY$1,407,589 $1,145,348 TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY$1,440,302 $1,145,348 
See accompanying Notes to Condensed Consolidated Financial Statements.
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SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS)
(UNAUDITED)
(in thousands, except per share amounts)
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Shack salesShack sales$150,668 $138,048 Shack sales$186,972 $126,288 $519,110 $353,855 
Licensing revenueLicensing revenue4,614 5,122 Licensing revenue6,923 4,113 17,527 11,502 
TOTAL REVENUETOTAL REVENUE155,282 143,170 TOTAL REVENUE193,895 130,401 536,637 365,357 
Shack-level operating expenses:Shack-level operating expenses:Shack-level operating expenses:
Food and paper costs44,630 39,564 Food and paper costs57,925 37,903 157,472 107,494 
Labor and related expenses46,382 41,766 Labor and related expenses58,208 37,898 157,221 110,597 
Other operating expenses23,144 17,779 Other operating expenses26,613 18,743 74,032 50,826 
Occupancy and related expenses13,911 12,558 Occupancy and related expenses14,640 13,093 43,427 37,974 
General and administrative expensesGeneral and administrative expenses19,565 16,191 General and administrative expenses20,504 14,962 60,435 45,170 
Depreciation and amortization expenseDepreciation and amortization expense13,726 11,768 Depreciation and amortization expense15,183 12,376 43,381 36,233 
Pre-opening costsPre-opening costs3,576 2,243 Pre-opening costs2,933 1,822 8,767 5,799 
Impairment and loss on disposal of assetsImpairment and loss on disposal of assets369 2,088 Impairment and loss on disposal of assets535 402 1,262 2,924 
TOTAL EXPENSESTOTAL EXPENSES165,303 143,957 TOTAL EXPENSES196,541 137,199 545,997 397,017 
OPERATING LOSS(10,021)(787)
Other income (expense), net31 (93)
LOSS FROM OPERATIONSLOSS FROM OPERATIONS(2,646)(6,798)(9,360)(31,660)
Other income, netOther income, net18 34 157 335 
Interest expenseInterest expense(515)(112)Interest expense(350)(143)(1,224)(697)
LOSS BEFORE INCOME TAXESLOSS BEFORE INCOME TAXES(10,505)(992)LOSS BEFORE INCOME TAXES(2,978)(6,907)(10,427)(32,022)
Income tax expense (benefit)(11,080)87 
Benefit from income taxesBenefit from income taxes(576)(797)(10,665)(6,802)
NET INCOME (LOSS)NET INCOME (LOSS)575 (1,079)NET INCOME (LOSS)(2,402)(6,110)238 (25,220)
Less: net loss attributable to non-controlling interests(734)(119)
Less: Net loss attributable to non-controlling interestsLess: Net loss attributable to non-controlling interests(224)(551)(837)(2,490)
NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.$1,309 $(960)NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.$(2,178)$(5,559)$1,075 $(22,730)
Earnings (loss) per share of Class A common stock:Earnings (loss) per share of Class A common stock:Earnings (loss) per share of Class A common stock:
Basic$0.03 $(0.03)Basic$(0.06)$(0.15)$0.03 $(0.62)
Diluted$0.01 $(0.03)Diluted$(0.06)$(0.15)$0.01 $(0.62)
Weighted-average shares of Class A common stock outstanding:Weighted-average shares of Class A common stock outstanding:Weighted-average shares of Class A common stock outstanding:
Basic38,948 34,444 Basic39,137 38,251 39,066 36,668 
Diluted42,789 34,444 Diluted39,137 38,251 43,448 36,668 
`See accompanying Notes to Condensed Consolidated Financial Statements.



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SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(UNAUDITED)
(in thousands)
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Net income (loss)Net income (loss)$575 $(1,079)Net income (loss)$(2,402)$(6,110)$238 $(25,220)
Other comprehensive income (loss), net of tax(1):
Other comprehensive income (loss), net of tax(1):
Other comprehensive income (loss), net of tax(1):
Change in foreign currency translation adjustment(1)Change in foreign currency translation adjustment(1)— (2)
Net change(1)Net change(1)— (2)
OTHER COMPREHENSIVE INCOME (LOSS)OTHER COMPREHENSIVE INCOME (LOSS)(1)OTHER COMPREHENSIVE INCOME (LOSS)(1)— (2)
COMPREHENSIVE INCOME (LOSS)COMPREHENSIVE INCOME (LOSS)574 (1,078)COMPREHENSIVE INCOME (LOSS)(2,403)(6,110)236 (25,219)
Less: comprehensive loss attributable to non-controlling interest(734)(119)
Less: Comprehensive loss attributable to non-controlling interestsLess: Comprehensive loss attributable to non-controlling interests(224)(551)(837)(2,490)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.$1,308 $(959)COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.$(2,179)$(5,559)$1,073 $(22,729)
(1)Net of tax expense of $0 for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020.
See accompanying Notes to Condensed Consolidated Financial Statements.
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SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(UNAUDITED)
(in thousands, except share amounts)
For the Thirteen Weeks Ended March 31, 2021 and March 25, 2020
Class A
Common Stock
Class B
Common Stock
Additional
Paid-In
Capital
Retained EarningsAccumulated Other Comprehensive Income (Loss)Non-
Controlling
Interest
Total
Equity
SharesAmountSharesAmount
BALANCE, DECEMBER 30, 202038,717,790 $39 2,951,188 $$395,067 $12,209 $$27,172 $434,493 
Net income (loss)1,309 (734)575 
Other comprehensive income (loss):
Net change in foreign currency translation adjustment(1)(1)
Equity-based compensation1,696 1,696 
Activity under stock compensation plans355,849 3,359 82 3,441 
Redemption of LLC Interests29,600 (29,600)36 (36)
Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis213 213 
Distributions paid to non-controlling interest holders(467)(467)
BALANCE, MARCH 31, 202139,103,239 $39 2,921,588 $$400,371 $13,518 $$26,017 $439,950 
BALANCE, DECEMBER 25, 201934,417,302 $35 3,145,197 $$244,410 $54,367 $$23,168 $321,985 
Net loss(960)(119)(1,079)
Other comprehensive income (loss):
Net change in foreign currency translation adjustment
Equity-based compensation1,313 1,313 
Activity under stock compensation plans77,903 — 424 (361)63 
Redemption of LLC Interests28,195 (28,195)195 (195)
Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis628 628 
Distributions paid to non-controlling interest holders(305)(305)
BALANCE, MARCH 25, 202034,523,400 $35 3,117,002 $$246,970 $53,407 $$22,188 $322,606 
For the Thirteen Weeks Ended September 29, 2021 and September 23, 2020
Class A
Common Stock
Class B
Common Stock
Additional
Paid-In
Capital
Retained EarningsAccumulated Other Comprehensive IncomeNon-
Controlling
Interest
Total
Equity
SharesAmountSharesAmount
BALANCE, JUNE 30, 202139,134,356 $39 2,921,587 $$401,567 $15,462 $$26,459 $443,532 
Net income (loss)(2,178)(224)(2,402)
Other comprehensive income (loss):
Net change in foreign currency translation adjustment(1)(1)
Equity-based compensation2,354 2,354 
Activity under stock compensation plans5,023 (386)354 (32)
Redemption of LLC Interests— — — — — 
Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis— — — 
Issuance of Class A common stock sold in equity offerings, net of underwriting discounts, commissions and offering costs— — — — — 
Distributions paid to non-controlling interest holders(172)(172)
BALANCE, SEPTEMBER 29, 202139,139,379 $39 2,921,587 $$403,535 $13,284 $$26,417 $443,279 
BALANCE, JUNE 24, 202038,236,538 $38 3,117,002 $$384,338 $37,196 $$29,707 $451,285 
Net income (loss)(5,559)(551)(6,110)
Other comprehensive income (loss):
Net change in foreign currency translation adjustment— — 
Equity-based compensation1,346 1,346 
Activity under stock compensation plans38,564 367 122 489 
Redemption of LLC Interests5,000 (5,000)44 (44)— 
Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis(84)— (84)
Issuance of Class A common stock sold in equity offerings, net of underwriting discounts, commissions and offering costs— — — — — 
Distributions paid to non-controlling interest holders(164)(164)
BALANCE, SEPTEMBER 23, 202038,280,102 $38 3,112,002 $$386,011 $31,637 $$29,070 $446,762 

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For the Thirty-Nine Weeks Ended September 29, 2021 and September 23, 2020
Class A
Common Stock
Class B
Common Stock
Additional
Paid-In
Capital
Retained EarningsAccumulated Other Comprehensive IncomeNon-
Controlling
Interest
Total
Equity
SharesAmountSharesAmount
BALANCE, DECEMBER 30, 202038,717,790 $39 2,951,188 $$395,067 $12,209 $$27,172 $434,493 
Net income (loss)1,075 (837)238 
Other comprehensive income (loss):
Net change in foreign currency translation adjustment(2)(2)
Equity-based compensation6,037 6,037 
Activity under stock compensation plans391,988 2,185 993 3,178 
Redemption of LLC Interests29,601 (29,601)33 (33)— 
Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis213 213 
Issuance of Class A common stock sold in equity offerings, net of underwriting discounts, commissions and offering costs— — — — — 
Distributions paid to non-controlling interest holders(878)(878)
BALANCE, SEPTEMBER 29, 202139,139,379 $39 2,921,587 $$403,535 $13,284 $$26,417 $443,279 
BALANCE, DECEMBER 25, 201934,417,302 $35 3,145,197 $$244,410 $54,367 $$23,168 $321,985 
Net income (loss)(22,730)(2,490)(25,220)
Other comprehensive income (loss):
Net change in foreign currency translation adjustment
Equity-based compensation4,088 4,088 
Activity under stock compensation plans180,068 627 (167)460 
Redemption of LLC Interests33,195 (33,195)239 (239)— 
Establishment of liabilities under tax receivable agreement and related changes to deferred tax assets associated with increases in tax basis929 929 
Issuance of Class A common stock sold in equity offerings, net of underwriting discounts, commissions and offering costs3,649,537 135,718 9,276 144,997 
Distributions paid to non-controlling interest holders(478)(478)
BALANCE, SEPTEMBER 23, 202038,280,102 $38 3,112,002 $$386,011 $31,637 $$29,070 $446,762 
See accompanying Notes to Condensed Consolidated Financial Statements.

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SHAKE SHACK INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(UNAUDITED)
(in thousands)
Thirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
OPERATING ACTIVITIESOPERATING ACTIVITIESOPERATING ACTIVITIES
Net income (loss) (including amounts attributable to non-controlling interests)Net income (loss) (including amounts attributable to non-controlling interests)$575 $(1,079)Net income (loss) (including amounts attributable to non-controlling interests)$238 $(25,220)
Adjustments to reconcile net income (loss) to net cash provided by operating activitiesAdjustments to reconcile net income (loss) to net cash provided by operating activitiesAdjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization expense13,726 11,768 Depreciation and amortization expense43,381 36,233 
Amortization of debt issuance costs86 Amortization of debt issuance costs605 — 
Amortization of cloud computing asset313 260 Amortization of cloud computing asset935 1,086 
Non-cash operating lease cost12,330 10,742 Non-cash operating lease cost37,213 33,726 
Equity-based compensation1,681 1,300 Equity-based compensation5,963 4,058 
Deferred income taxes(1,523)3,775 Deferred income taxes9,708 8,680 
Non-cash interest expense337 69 Non-cash interest expense348 48 
Gain on sale of marketable securities(79)Loss (gain) on sale of marketable securities(79)
Impairment and loss on disposal of assets369 2,088 Impairment and loss on disposal of assets1,262 2,924 
Unrealized loss on available-for-sale securities46 356 Unrealized loss on equity securities117 22 
Other non-cash (income) expense(1)183 Other non-cash (income) expense(2)906 
Changes in operating assets and liabilities:Changes in operating assets and liabilities:
Accounts receivable626 3,150 Accounts receivable(1,847)2,241 
Inventories154 306 Inventories(637)(162)
Prepaid expenses and other current assets(731)(439)Prepaid expenses and other current assets4,233 (759)
Other assets(216)(1,039)Other assets(767)(2,111)
Accounts payable1,474 (4,449)Accounts payable(6,780)4,349 
Accrued expenses(9,420)(6,330)Accrued expenses(18,682)(13,361)
Accrued wages and related liabilities2,865 (5,113)Accrued wages and related liabilities3,709 (2,214)
Other current liabilities(158)273 Other current liabilities(2,202)437 
Long-term operating lease liabilities(10,754)(8,755)Long-term operating lease liabilities(31,886)(25,298)
Other long-term liabilities(1,828)497 Other long-term liabilities(1,174)2,992 
NET CASH PROVIDED BY OPERATING ACTIVITIESNET CASH PROVIDED BY OPERATING ACTIVITIES9,951 7,484 NET CASH PROVIDED BY OPERATING ACTIVITIES43,740 28,498 
INVESTING ACTIVITIESINVESTING ACTIVITIESINVESTING ACTIVITIES
Purchases of property and equipmentPurchases of property and equipment(23,155)(19,159)Purchases of property and equipment(68,852)(47,002)
Purchases of marketable securitiesPurchases of marketable securities(4,073)(192)Purchases of marketable securities(47,321)(314)
Sales of marketable securitiesSales of marketable securities20,000 Sales of marketable securities4,004 20,000 
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES(27,228)649 
NET CASH USED IN INVESTING ACTIVITIESNET CASH USED IN INVESTING ACTIVITIES(112,169)(27,316)
FINANCING ACTIVITIESFINANCING ACTIVITIESFINANCING ACTIVITIES
Proceeds from issuance of convertible notes, net of discountProceeds from issuance of convertible notes, net of discount243,750 Proceeds from issuance of convertible notes, net of discount243,750 — 
Proceeds from revolving credit facilityProceeds from revolving credit facility50,000 Proceeds from revolving credit facility— 50,000 
Payments on revolving credit facilityPayments on revolving credit facility— (50,000)
Deferred financing costsDeferred financing costs(70)Deferred financing costs(123)(64)
Proceeds from issuance of Class A common stock sold in equity offerings, net of underwriting discounts, commissions and offering costsProceeds from issuance of Class A common stock sold in equity offerings, net of underwriting discounts, commissions and offering costs— 144,997 
Payments on principal of finance leasesPayments on principal of finance leases(602)(615)Payments on principal of finance leases(1,982)(1,670)
Distributions paid to non-controlling interest holdersDistributions paid to non-controlling interest holders(467)(305)Distributions paid to non-controlling interest holders(878)(478)
Payments under tax receivable agreementPayments under tax receivable agreement(6,569)Payments under tax receivable agreement— (6,643)
Debt issuance costsDebt issuance costs(649)Debt issuance costs(968)— 
Proceeds from stock option exercisesProceeds from stock option exercises6,451 1,032 Proceeds from stock option exercises6,688 2,239 
Employee withholding taxes related to net settled equity awardsEmployee withholding taxes related to net settled equity awards(3,010)(969)Employee withholding taxes related to net settled equity awards(3,510)(1,779)
NET CASH PROVIDED BY FINANCING ACTIVITIESNET CASH PROVIDED BY FINANCING ACTIVITIES245,403 42,574 NET CASH PROVIDED BY FINANCING ACTIVITIES242,977 136,602 
NET INCREASE IN CASH AND CASH EQUIVALENTSNET INCREASE IN CASH AND CASH EQUIVALENTS228,126 50,707 NET INCREASE IN CASH AND CASH EQUIVALENTS174,548 137,784 
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIODCASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD146,873 37,099 CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD146,873 37,099 
CASH AND CASH EQUIVALENTS AT END OF PERIODCASH AND CASH EQUIVALENTS AT END OF PERIOD$374,999 $87,806 CASH AND CASH EQUIVALENTS AT END OF PERIOD$321,421 $174,883 
See accompanying Notes to Condensed Consolidated Financial Statements.
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SHAKE SHACK INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(in thousands, except share and per share amounts)
Page
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NOTE 1: NATURE OF OPERATIONS
Shake Shack Inc. was formed on September 23, 2014 as a Delaware corporation for the purpose of facilitating an initial public offering and other related transactions in order to carry on the business of SSE Holdings, LLC and its subsidiaries ("SSE Holdings"). We areShake Shack is the sole managing member of SSE Holdings and, as sole managing member, we operatethe Company operates and controlcontrols all of the business and affairs of SSE Holdings. As a result, we consolidatethe Company consolidates the financial results of SSE Holdings and reportreports a non-controlling interest representing the economic interest in SSE Holdings held by the other members of SSE Holdings. As of March 31,September 29, 2021 wethe Company owned 93.0%93.1% of SSE Holdings. Unless the context otherwise requires, "we," "us," "our," "Shake Shack," the "Company" and other similar references, refer to Shake Shack Inc. and, unless otherwise stated, all of its subsidiaries, including SSE Holdings.
We operateThe Company operates and licenselicenses Shake Shack restaurants ("Shacks"), which serve hamburgers, hot dogs, chicken, crinkle-cut fries, shakes, frozen custard, beer, wine and more. As of March 31,September 29, 2021, there were 321350 Shacks in operation, system-wide, of which 192205 were domestic Company-operated Shacks, 2224 were domestic licensed Shacks and 107121 were international licensed Shacks. As of March 31,September 29, 2021, four2 domestic Company-operated Shacks and 167 licensed Shacks were temporarily closed primarily due to the COVID-19 pandemic.
NOTE 2: SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation
The accompanying unaudited condensed consolidated financial statements include the accounts of Shake Shack Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") and on a basis consistent in all material respects with the accounting policies described in ourits Annual Report on Form 10-K for the fiscal year ended December 30, 2020 ("2020 Form 10-K"). Certain information and footnote disclosures normally presented in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. These interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes thereto included in ourits 2020 Form 10-K. In ourthe Company's opinion, all adjustments, which are normal and recurring in nature, necessary for a fair presentation of ourthe financial position and results of operation have been included. Operating results for interim periods are not necessarily indicative of the results that may be expected for a full fiscal year.
SSE Holdings is considered a variable interest entity. Shake Shack Inc. is the primary beneficiary as we havethe Company has the majority economic interest in SSE Holdings and, as the sole managing member, havehas decision making authority that significantly affects the economic performance of the entity, while the limited partners have no substantive kick-out or participating rights. As a result, we consolidatethe Company consolidates SSE Holdings. The assets and liabilities of SSE Holdings represent substantially all of ourthe Company's consolidated assets and liabilities with the exception of certain deferred taxes and liabilities under the Tax Receivable Agreement. As of March 31,September 29, 2021 and December 30, 2020, the net assets of SSE Holdings were $380,713$383,138 and $383,669, respectively. The assets of SSE Holdings are subject to certain restrictions in SSE Holdings' revolving credit agreement. SeeRefer to Note 6, Debt, for moreadditional information.
Fiscal Year
We operateThe Company operates on a 52/53 week fiscal year ending on the last Wednesday in December. Fiscal 2021 contains 52 weeks and ends on December 29, 2021. Fiscal 2020 contained 53 weeks and ended on December 30, 2020. Unless otherwise stated, references to years in this report relate to fiscal years.
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Use of Estimates
The preparation of these condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and
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liabilities at the date of the financial statements, and the reported amounts of sales and expenses during the reporting period. Actual results could differ from those estimates.
Recently Adopted Accounting Pronouncements   
WeThe Company adopted the Accounting Standards Updates (“ASUs”) summarized below in fiscal 2021.
Accounting Standards UpdateDescriptionDate
Adopted
Simplifying the Accounting for Income Taxes

(ASU 2019-12)
This standard simplifies various aspects related to accounting for income taxes by removing certain exceptions to the general principles in ASC 740, “Income Taxes” (“ASC 740”), and clarifying certain aspects of the current guidance to promote consistency among reporting entities.

The adoption of this standard did not have a material impact to ourthe Company's condensed consolidated financial statements.
December 31, 2020
Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity's Own
Equity (Subtopic 815-40)—Accounting For Convertible Instruments and Contracts in an Entity's Own Equity.

(ASU 2020-06)
This ASU amends the guidance on convertible instruments and the derivatives scope exception for contracts in an entity’s own equity and improves and amends the related earnings per share guidance for both Subtopics.

WeThe Company elected to early adopt this standard, beginning December 31, 2020.

The guidance of this ASU is applicable to ourthe convertible notes issued in March 2021. As a result, the convertible notes are accounted for as a single liability measured at amortized cost. The if-converted earnings per share ("EPS") method is used, with the effect of potential share settlement included in diluted EPS. Refer to Note 6, Debt, and Note 11, Earnings Per Share, for further details of the convertible notes issued.additional information.
December 31, 2020
NOTE 3: REVENUE
Revenue Recognition
Revenue consists of Shack sales and Licensing revenue. Generally, revenue is recognized as promised goods or services transfer to the guest or customer in an amount that reflects the consideration we expectthe Company expects to be entitled to in exchange for those goods or services. Shack revenuessales are recognized when payment is tendered at the point of sale as the performance obligation has been satisfied.
Revenue from Shack sales is presented net of discounts and recognized when food, beverage and retail products are sold. Sales tax collected from customers is excluded from Shack sales and the obligation is included in sales tax payable until the taxes are remitted to the appropriate taxing authorities. Revenue from our gift cards is deferred and recognized upon redemption.
Licensing revenues includerevenue includes initial territory fees, Shack opening fees, and ongoing sales-based royalty fees from licensed Shacks. Generally, the licenses granted to develop, open and operate each Shack in a specified territory are the predominant goods or services transferred to the licensee in ourthe contracts, and represent distinct performance obligations. Ancillary promised services, such as training and assistance during the initial opening of a Shack, are typically combined with the licenses and considered as one performance obligation per Shack. We determineThe Company determines the transaction price for each contract, which is comprised of the initial territory fee, and an estimate of the total Shack opening fees we expectthe Company expects to be entitled to. The calculation of total Shack opening fees included in the transaction price requires judgment, as it is based on an estimate of the number of Shacks we expectthe Company expects the licensee to open. The transaction price is then allocated equally to each Shack expected to open. The performance obligations are satisfied over time, starting when a Shack opens, through the end of the term of the
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license granted to the Shack. Because we arethe Company is transferring licenses to access our intellectual property during a contractual term, revenue is recognized on a straight-line basis over the license term. Generally, payment for the initial territory fee is received upon execution of the licensing agreement, and payment for the Shack opening fees areis received either in advance of or upon opening the related Shack. These payments are initially deferred and recognized as revenue as the performance obligations are satisfied, which occurs over a long-term period.
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Revenue from sales-based royalties is recognized as the related sales occur.
Revenue recognized during the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020, disaggregated by type is as follows:
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Shack salesShack sales$150,668 $138,048 Shack sales$186,972 $126,288 $519,110 $353,855 
Licensing revenue:Licensing revenue:Licensing revenue:
Sales-based royaltiesSales-based royalties4,425 4,944 Sales-based royalties6,711 3,867 16,961 10,943 
Initial territory and opening feesInitial territory and opening fees189 178 Initial territory and opening fees212 246 566 559 
Total revenueTotal revenue$155,282 $143,170 Total revenue$193,895 $130,401 $536,637 $365,357 
The aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially unsatisfied) as of March 31,September 29, 2021 was $16,748. We expect$17,821. The Company expects to recognize this amount as revenue over a long-term period, as the license term for each Shack ranges from 5 to 20 years. This amount excludes any variable consideration related to sales-based royalties.
Contract Balances
Opening and closing balances of contract liabilities and receivables from contracts with customers is as follows:
March 31
2021
December 31
2020
September 29
2021
December 31
2020
Shack sales receivablesShack sales receivables$5,641 $5,373 Shack sales receivables$5,612 $5,373 
Licensing receivables, net of allowance for doubtful accountsLicensing receivables, net of allowance for doubtful accounts2,420 2,647 Licensing receivables, net of allowance for doubtful accounts3,874 2,647 
Gift card liabilityGift card liability2,600 2,637 Gift card liability2,656 2,637 
Deferred revenue, currentDeferred revenue, current612 608 Deferred revenue, current759 608 
Deferred revenue, long-termDeferred revenue, long-term11,965 12,151 Deferred revenue, long-term12,745 12,151 
Revenue recognized during the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020 that was included in their respective liability balances at the beginning of the period is as follows:
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Gift card liabilityGift card liability$219 $300 Gift card liability$73 $91 $400 $436 
Deferred revenueDeferred revenue181 175 Deferred revenue203 234 543 539 
NOTE 4: FAIR VALUE MEASUREMENTS
Assets and Liabilities Measured at Fair Value on a Recurring Basis
The carrying value of ourthe Company's Cash and cash equivalents, Accounts receivable, net, Accounts payable and Accrued expenses approximate their fair value due to the short-term nature of these financial instruments.
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As of March 31,September 29, 2021 and December 30, 2020, wethe Company held certain assets that are required to be measured at fair value on a recurring basis including our Marketable securities, which consist of investments in equity securities. Fair value of these investments is measured using Level 1 inputs (unadjusted quoted prices in active markets for identical assets). The carrying value of these investments in equity securities approximates fair value.
Our assetsAssets measured at fair value on a recurring basis as of March 31,September 29, 2021 and December 30, 2020 were as follows:
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Fair Value MeasurementsFair Value Measurements
March 31
2021
December 30
2020
September 29
2021
December 30
2020
Level 1Level 1Level 1
Equity securities:Equity securities:Equity securities:
Mutual funds$40,914 $36,887 Mutual funds$80,082 $36,887 
Total Marketable securitiesTotal Marketable securities$40,914 $36,887 Total Marketable securities$80,082 $36,887 
Refer to Note 6, Debt, for additional information relating to the fair value of the Company's outstanding debt instruments.
A summary of Other income, (expense)net from equity securities recognized during the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020 is as follows:
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Equity securities:Equity securities:Equity securities:
Dividend income$74 $184 Dividend income$56 $40 $223 $290 
Realized gain (loss) on sale of investments79 Realized gain (loss) on sale of investments— — (5)79 
Unrealized gain (loss) on equity securities(46)(356)Unrealized gain (loss) on equity securities(80)— (117)(22)
TotalTotal$28 $(93)Total$(24)$40 $101 $347 
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis
Assets and liabilities that are measured at fair value on a non-recurring basis include our long-lived assets, operating lease right-of-use assets and indefinite-lived intangible assets. There were no impairment charges recognized during the thirteen and thirty-nine weeks ended September 29, 2021. During the thirteenthirty-nine weeks ended March 25,September 23, 2020, wethe Company recognized an impairment charge of $1,132 at one location. Of the total impairment charge, $736 was attributed to property and equipment held and used, $383 was attributed to operating lease right-of-use assets, and $13 was attributed to finance lease right-of-use assets. The asset impairment charge was included in Impairment and loss on disposal of assets on the Condensed Consolidated StatementStatements of Income (Loss). The fair values of assets were determined using an income-based approach and are classified as Level 3 within the fair value hierarchy. Significant inputs include projections of future cash flows, discount rates, Shack sales and profitability. There were no impairment charges recognized during the thirteen weeks ended March 31, 2021.September 23, 2020.
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NOTE 5: SUPPLEMENTAL BALANCE SHEET INFORMATION
The components of Other current liabilities as of March 31,September 29, 2021 and December 30, 2020 are as follows:
March 31
2021
December 30
2020
September 29
2021
December 30
2020
Sales tax payableSales tax payable$4,045 $4,285 Sales tax payable$4,230 $4,285 
Gift card liabilityGift card liability2,600 2,637 Gift card liability2,656 2,637 
Current portion of financing equipment lease liabilitiesCurrent portion of financing equipment lease liabilities2,445 1,998 Current portion of financing equipment lease liabilities2,553 1,998 
OtherOther5,997 5,280 Other3,834 5,280 
Other current liabilitiesOther current liabilities$15,087 $14,200 Other current liabilities$13,273 $14,200 
The components of Other long-term liabilities as of March 31,September 29, 2021 and December 30, 2020 are as follows:
March 31
2021
December 30
2020
September 29
2021
December 30
2020
Deferred licensing revenueDeferred licensing revenue$11,965 $12,151 Deferred licensing revenue$12,745 $12,151 
Long-term portion of financing equipment lease liabilitiesLong-term portion of financing equipment lease liabilities4,056 3,586 Long-term portion of financing equipment lease liabilities3,977 3,586 
Other(1)
Other(1)
6,276 8,723 
Other(1)
6,028 8,723 
Other long-term liabilitiesOther long-term liabilities$22,297 $24,460 Other long-term liabilities$22,750 $24,460 
(1)As of March 31,September 29, 2021, Other included $3,359$3,142 of deferred lease incentive liabilities related to leases with variable lease cost as well as $2,607 of deferred Social Security taxes associated with the Coronavirus Aid, Relief, and Economic Security Act. As of December 30, 2020, Other included $3,182 of deferred lease incentive liabilities related to leases with variable lease cost as well as $5,214 of deferred Social Security taxes associated with the Coronavirus Aid, Relief, and Economic Security Act.
NOTE 6: DEBT
Revolving Credit Facility
In August 2019, wethe Company entered into a revolving credit facility agreement ("Revolving Credit Facility"), which permits borrowings up to $50,000, of which the entire amount is available immediately, with the ability to increase available borrowings up to an additional $100,000, to be made available subject to satisfaction of certain conditions. The Revolving Credit Facility also permits the issuance of letters of credit upon our request of up to $15,000.
In March 2020, wethe Company drew down the full $50,000 available under the Revolving Credit Facility to enhance liquidity and financial flexibility given the uncertain market conditions created by the COVID-19 pandemic. We repaid thisThis amount was paid in full, plus interest, in June 2020.
In May 2020, wethe Company entered into a first amendment to the Revolving Credit Facility ("First Amendment"), which, among other things, provided for modified financial covenant compliance requirements for a period of time. The First Amendment required usthe Company to maintain minimum liquidity of $25,000 through July 1, 2021 and outstanding borrowings during the applicable period covered by the First Amendment bore interest at either: (i) the London Interbank Offered Rate ("LIBOR") plus a percentage ranging from 1.0% to 2.5% or (ii) the base rate plus a percentage ranging from 0.0% to 1.5%, in each case depending on ourthe Company's net lease adjusted leverage ratio.
In March 2021, wethe Company entered into a second amendment to the Revolving Credit Facility (“Second Amendment”). The Second Amendment modified the applicable covenants and restrictions in the Revolving Credit AgreementFacility to permit the incurrence of the Convertible Notes (as defined below), including obligations and transactions in connection therewith. In addition, the Second Amendment, among other things, (i) extended the period applicable to the increased interest rate margin as set forth in the First Amendment; (ii) shortened the maturity date of the Revolving Credit Facility from August 2024 to September 2022 and (iii) added
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mechanics relating to the transition from the use of LIBOR to the Secured Overnight Financing Rate ("SOFR") upon the discontinuance or unavailability of LIBOR.
Subsequently, and also in March 2021, wethe Company entered into a third amendment to the Revolving Credit Facility (“Third Amendment”) with JPMorgan Chase Bank, N.A. (as successor agent to Wells Fargo Bank, National Association), as administrative agent, and
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the lenders party thereto. In addition, in March 2021, Wells Fargo Bank resigned as administrative agent under the Revolving Credit Facility and assigned its commitments thereunder to JPMorgan Bank, N.A. The Third Amendment appoints JPMorgan Bank, N.A. as administrative agent under the Revolving Credit Facility. In addition, the Third Amendment, among other things, extends the maturity date of the Revolving Credit Facility from September 2022 to March 2026. As of March 31,September 29, 2021 and December 30, 2020, no amounts were outstanding under the Revolving Credit Facility.
The obligations under the Revolving Credit Facility are secured by a first-priority security interest in substantially all of the assets of SSE Holdings and the guarantors. The obligations under the Revolving Credit Facility are guaranteed by each of SSE Holdings' direct and indirect subsidiaries (with certain exceptions).
The Revolving Credit Facility requires usthe Company to comply with maximum net lease adjusted leverage and minimum fixed charge coverage ratios. We areThe Company is not subject to these coverage ratios for a period of time due to the Second Amendment to the Revolving Credit Facility described above. In addition, the Revolving Credit Facility contains other customary affirmative and negative covenants, including those which (subject to certain exceptions and dollar thresholds) limit ourthe Company's ability to incur debt; incur liens; make investments; engage in mergers, consolidations, liquidations or acquisitions; dispose of assets; make distributions on or repurchase equity securities; engage in transactions with affiliates; and prohibits us,the Company, with certain exceptions, from engaging in any line of business not related to ourits current line of business. As of March 31,September 29, 2021, we werethe Company was in compliance with all covenants.
As of March 31,September 29, 2021, the Revolving Credit Facility had unamortized deferred financing costs of $110, and was$86 which were included in Other assets on the Condensed Consolidated Balance Sheet.Sheets. Total interest expense related to the Revolving Credit Facility were $368 and $52 for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 was $37 and March 25, 2020, respectively. Total interest$442, respectively, and $143 and $697, respectively, for the thirteen and thirty-nine weeks ended September 23, 2020. Interest expense for the thirteenthirty-nine weeks ended March 31,September 29, 2021 primarily included the write-off of previously capitalized costs on the Revolving Credit Facility.
Convertible Notes
In March 2021, wethe Company issued $225,000 aggregate principal amount of 0% Convertible Senior Notes due 2028 (the “Convertible(“Convertible Notes”) in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933. WeThe Company granted an option to the initial purchasers to purchase up to an additional $25,000 aggregate principal amount of Convertible Notes to cover over-allotments, which was subsequently fully exercised during March 2021, resulting in a total issuance of $250,000 aggregate principal amount of Convertible Notes. The Convertible Notes will mature on March 1, 2028, unless earlier converted, redeemed or repurchased in certain circumstances. Upon conversion, we paythe Company pays or deliver,delivers, as the case may be, cash, shares of Shake Shack’s Class A common stock or a combination of cash and shares of Shake Shack’s Class A common stock, at ourthe Company's election.
The Convertible Notes are convertible at the option of the holders at any time prior to the close of business on the business day immediately preceding December 1, 2027, only under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending on June 30, 2021 (and only during such fiscal quarter), if the last reported sale price of ourthe Company's Class A common stock, par value $0.001 per share, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price for the Convertible Notes on each applicable trading day; (2) during the five business day period after any ten consecutive trading day period (the “measurement period”) in which the trading price (as defined in the Indenture) per $1,000one thousand dollar principal amount of the Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of Class A common stock and the conversion rate for the Convertible Notes on each such trading day; (3) if we callthe Company calls such Convertible Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date, but only with respect to the Convertible Notes called (or deemed called) for redemption; and (4) upon the occurrence of specified corporate events as set forth in the Indenture. On or after December 1, 2027, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders of the Convertible Notes may convert all or any portion of their Convertible Notes at any time, regardless of the foregoing circumstances.
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The Convertible Notes had an initial conversion rate of 5.8679 shares of Shake Shack’s Class A common stock per $1,000one thousand dollar principal amount of Convertible Notes, which is equivalent to an initial conversion price of approximately $170.42 per share of Shake Shack’s Class A common stock.
WeShake Shack may not redeem the Convertible Notes prior to March 6, 2025. WeThe Company may redeem for cash all or any portion of the Convertible Notes, at ourthe Company's option, on or after March 6, 2025 if the last reported sale price of Shake Shack’s Class A common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30
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consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which we providethe Company provides notice of redemption at a redemption price equal to 100% of the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid special interest, if any, to, but excluding, the redemption date.
In addition, if we undergoShake Shack undergoes a fundamental change (as defined in the indenture governing the Convertible Notes), subject to certain conditions, holders may require usit to repurchase for cash all or any portion of their Convertible Notes at a repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid special interest, if any, to, but excluding, the fundamental change repurchase date. In addition, following certain corporate events that occur prior to the maturity date of the Convertible Notes or if we deliverthe Company delivers a notice of redemption in respect of some or all of the Convertible Notes, wethe Company will, in certain circumstances, increase the conversion rate of the Convertible Notes for a holder who elects to convert ourthe Convertible Notes in connection with such a corporate event or convert ourthe Convertible Notes called (or deemed called) for redemption during the related redemption period, as the case may be.
Contemporaneously with the issuance of the Convertible Notes, Shake Shack Inc. entered into an intercompany note with SSE Holdings LLC (“Intercompany Note”). SSE Holdings promises to pay Shake Shack Inc., for value received, the principal amount with interest of the Intercompany Note in March 2028. Shake Shack Inc. will exercise its right to convert the Intercompany Note to maintain at all times a one-to-one ratio between the number of common units, directly or indirectly, held by Shake Shack IncInc. and the aggregate number of outstanding shares of common stock.
As of March 31,September 29, 2021, the Convertible Notes had a gross principal balance of $250,000 and a balance of $242,875,$243,280, net of unamortized discount and debt issuance costs of $7,125.$6,720. As of March 31,September 29, 2021, the unamortized balance of discount and debt issuance costs was recorded as a contra-liability and netted with Long-term debt on the Condensed Consolidated Balance Sheets and was being amortized as interest expense using the effective interest method. Total amortization expense was $86$262 and $605 respectively, for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and was included in Interest expense in the Condensed Consolidated Statements of Income (Loss). In connection with the Convertible Notes, wethe Company also incurred costs of $236, including consulting and advisory fees inof $236 for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and was included in General and administrative expenseexpenses in the Condensed Consolidated Statements of Income (Loss).
At March 31,September 29, 2021, the fair value of the Convertible Notes was approximately $248,125,$215,898, based on external pricing data, including available quoted market prices of these instruments, and consideration of comparable debt instruments with similar interest rates and trading frequency, among other factors, and is classified as a Level 2 measurement within the fair value hierarchy.
NOTE 7: LEASES
Nature of Leases
WeShake Shack currently leaseleases all of ourits domestic Company-operated Shacks, ourthe home office and certain equipment under various non-cancelable lease agreements that expire on various dates through 2037. We evaluate2038. The Company evaluates contracts entered into to determine whether the contract involves the use of property or equipment, which is either explicitly or implicitly identified in the contract. We evaluateThe Company evaluates whether we controlit controls the use of the asset, which is determined by assessing whether we obtain substantially all economic benefits from the use of the asset is obtained, and whether we havethe Company has the right to direct the use of the asset. If these criteria are met and we havethe Company has identified a lease, we account for the contract is accounted for under the requirements of Accounting Standards Codification Topic 842 ("ASC 842").842.
Upon the possession of a leased asset, we determinethe Company determines its classification as an operating or finance lease. OurThe real estate leases are classified as operating leases and most of ourthe equipment leases are classified as finance leases. Generally, our
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the real estate leases have initial terms ranging from 10 to 15 years and typically include 2 five-year renewal options. Renewal options are generally not recognized as part of the right-of-use assets and lease liabilities as it is not reasonably certain at commencement date that wethe Company would exercise the options to extend the lease. OurThe real estate leases typically provide for fixed minimum rent payments and/or contingent rent payments based upon sales in excess of specified thresholds. When the achievement of such sales thresholds are deemed to be probable, contingent rent is accrued in proportion to the sales recognized during the period. Fixed minimum rent payments are recognized on a straight-line basis over the lease term from the date we takethe Company takes possession of the leased property. Lease expense incurred before a Shack opens is recorded in Pre-opening costs on the Condensed Consolidated Statements of Income (Loss). Once a domestic Company-operated Shack opens, we record the straight-line lease
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expense and any contingent rent, if applicable, is recorded in Occupancy and related expenses on the Condensed Consolidated Statements of Income (Loss). Many of ourthe leases also require usthe Company to pay real estate taxes, common area maintenance costs and other occupancy costs which are included in Occupancy and related expenses on the Condensed Consolidated Statements of Income (Loss).
As there are no explicit rates provided in ourthe leases, we use ourthe Company uses its incremental borrowing rate ("IBR") in determining the present value of future lease payments. The discount rateIBR used to measure the lease liability is derived from the average of the yield curves obtained from using the notching method and the recovery rate method. The most significant assumption in calculating the incremental borrowing rateIBR is ourthe Company's credit rating and is subject to judgment. We determined ourThe credit rating based on a comparisonused to develop the IBR is determined by utilizing the credit ratings of the financial information of SSE Holdings to other public companies and then used their respective credit ratings to develop our own.with similar financial information as SSE Holdings.
We expend
The Company expends cash for leasehold improvements to build out and equip ourthe leased premises. Generally, a portion of the leasehold improvements and building costs are reimbursed by ourthe landlords as landlord incentives pursuant to agreed-upon terms in ourthe lease agreements. If obtained, landlord incentives usually take the form of cash, full or partial credits against our future minimum or contingent rents otherwise payable by us,the Company, or a combination thereof. In most cases, landlord incentives are received after we takethe Company takes possession of the property, as we meet required milestones are met during the construction of the property. We includeThe Company includes these amounts in the measurement of the initial operating lease liability, which are also reflected as a reduction to the initial measurement of the right-of-use asset.
A summary of finance and operating lease right-of-use assets and liabilities as of March 31,September 29, 2021 and December 30, 2020 is as follows:
ClassificationMarch 31
2021
December 30
2020
Finance leasesProperty and equipment, net$6,315 $5,409 
Operating leasesOperating lease assets312,087 306,317 
Total right-of-use assets$318,402 $311,726 
Finance leases:
Other current liabilities$2,445 $1,998 
Other long-term liabilities4,056 3,586 
Operating leases:
Operating lease liabilities, current37,275 35,657 
Long-term operating lease liabilities349,670 343,736 
Total lease liabilities$393,446 $384,977 
The components of lease expense for the thirteen weeks ended March 31, 2021 and March 25, 2020 was as follows:
Thirteen Weeks Ended
ClassificationMarch 31
2021
March 25
2020
Finance lease cost:
Amortization of right-of-use assetsDepreciation expense$613 $577 
Interest on lease liabilitiesInterest expense54 55 
Operating lease costOccupancy and related expenses
Pre-opening costs
General and administrative expenses
12,330 10,742 
Short-term lease costOccupancy and related expenses82 124 
Variable lease costOccupancy and related expenses
Pre-opening costs
General and administrative expenses
2,851 3,730 
Total lease cost$15,930 $15,228 
ClassificationSeptember 29
2021
December 30
2020
Finance leasesProperty and equipment, net$6,328 $5,409 
Operating leasesOperating lease assets338,886 306,317 
Total right-of-use assets$345,214 $311,726 
Finance leases:
Other current liabilities$2,553 $1,998 
Other long-term liabilities3,977 3,586 
Operating leases:
Operating lease liabilities, current38,811 35,657 
Long-term operating lease liabilities378,686 343,736 
Total lease liabilities$424,027 $384,977 
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The components of lease expense for the thirteen and thirty-nine weeks ended September 29, 2021 and September 23, 2020 was as follows:
Thirteen Weeks EndedThirty-Nine Weeks Ended
ClassificationSeptember 29
2021
September 23
2020
September 29
2021
September 23
2020
Finance lease cost:
Amortization of right-of-use assetsDepreciation and amortization expense$715 $531 $2,003 $1,710 
Interest on lease liabilitiesInterest expense47 51 158 161 
Operating lease costOccupancy and related expenses
Pre-opening costs
General and administrative expenses
12,497 11,506 37,213 33,726 
Short-term lease costOccupancy and related expenses79 138 228 331 
Variable lease costOccupancy and related expenses
Pre-opening costs
General and administrative expenses
3,347 3,267 9,556 9,413 
Total lease cost$16,685 $15,493 $49,158 $45,341 

As of March 31,September 29, 2021, future minimum lease payments for finance and operating leases consisted of the following:
Finance LeasesOperating LeasesFinance LeasesOperating Leases
20212021$2,023 $35,013 2021$743 $10,232 
202220222,183 53,111 20222,560 50,556 
202320231,326 56,121 20231,671 61,009 
20242024689 55,896 2024927 60,907 
20252025438 54,853 2025574 59,962 
ThereafterThereafter289 246,023 Thereafter449 294,310 
Total minimum paymentsTotal minimum payments6,948 501,017 Total minimum payments6,924 536,976 
Less: imputed interestLess: imputed interest447 114,072 Less: imputed interest395 119,479 
Total lease liabilitiesTotal lease liabilities$6,501 $386,945 Total lease liabilities$6,529 $417,497 
As of March 31,September 29, 2021 wethe Company had additional operating lease commitments of $55,964$50,967 for non-cancelable leases without a possession date, which will begin to commence in 2021. These lease commitments are consistent with the leases that we have been executed thus far.
A summary of lease terms and discount rates for finance and operating leases as of March 31,September 29, 2021 and December 30, 2020 is as follows:
March 31
2021
December 30
2020
September 29
2021
December 30
2020
Weighted-average remaining lease term (years):Weighted-average remaining lease term (years):Weighted-average remaining lease term (years):
Finance leases5.55.2Finance leases5.35.2
Operating leases9.69.7Operating leases9.59.7
Weighted-average discount rate:Weighted-average discount rate:Weighted-average discount rate:
Finance leases3.5 %3.6 %Finance leases3.1 %3.6 %
Operating leases3.9 %4.2 %Operating leases3.5 %4.2 %
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Supplemental cash flow information related to leases for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020 is as follows:
Thirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
Cash paid for amounts included in the measurement of lease liabilities:Cash paid for amounts included in the measurement of lease liabilities:Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases54 $55 Operating cash flows from finance leases$158 $161 
Operating cash flows from operating leases11,825 11,329 Operating cash flows from operating leases35,703 29,449 
Financing cash flows from finance leases602 559 Financing cash flows from finance leases1,982 1,670 
Right-of-use assets obtained in exchange for lease obligations:Right-of-use assets obtained in exchange for lease obligations:Right-of-use assets obtained in exchange for lease obligations:
Finance leases1,518 716 Finance leases2,922 1,411 
Operating leases11,095 28,035 Operating leases52,747 42,502 
NOTE 8: NON-CONTROLLING INTERESTS
We areShake Shack is the sole managing member of SSE Holdings and, as a result, consolidateconsolidates the financial results of SSE Holdings. We reportThe Company reports a non-controlling interest representing the economic interest in SSE Holdings held by the other members of SSE Holdings. The Third Amended and Restated Limited Liability Company Agreement, as further amended, (the "LLC Agreement") of SSE Holdings 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
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exchange, wethe Company will receive a corresponding number of LLC Interests, increasing ourthe total ownership interest in SSE Holdings. Changes in ourthe ownership interest in SSE Holdings while we retain ourthe Company retains its controlling interest in SSE Holdings will be accounted for as equity transactions. As such, future redemptions or direct exchanges of LLC Interests in SSE Holdings by the other members of SSE Holdings will result in a change in ownership and reduce the amount recorded as non-controlling interest and increase additional paid-in capital.
The following table summarizes the ownership interest in SSE Holdings as of March 31,September 29, 2021 and December 30, 2020.
March 31, 2021December 30, 2020September 29, 2021December 30, 2020
LLC InterestsOwnership%LLC InterestsOwnership %LLC InterestsOwnership %LLC InterestsOwnership %
Number of LLC Interests held by Shake Shack Inc.Number of LLC Interests held by Shake Shack Inc.39,103,239 93.0 %38,717,790 92.9 %Number of LLC Interests held by Shake Shack Inc.39,139,379 93.1 %38,717,790 92.9 %
Number of LLC Interests held by non-controlling interest holdersNumber of LLC Interests held by non-controlling interest holders2,921,588 7.0 %2,951,188 7.1 %Number of LLC Interests held by non-controlling interest holders2,921,587 6.9 %2,951,188 7.1 %
Total LLC Interests outstandingTotal LLC Interests outstanding42,024,827 100.0 %41,668,978 100.0 %Total LLC Interests outstanding42,060,966 100.0 %41,668,978 100.0 %
The weighted average ownership percentages for the applicable reporting periods are used to attribute Net income (loss) and Other comprehensive income (loss) to Shake Shack Inc. and the non-controlling interest holders. The non-controlling interest holders' weighted average ownership percentage for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 was 6.9% and March 25,7.0%, respectively. The non-controlling interest holders' weighted average ownership percentage for the thirteen and thirty-nine weeks ended September 23, 2020 was 7.0%7.5% and 8.4%7.9%, respectively.
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The following table summarizes the effects of changes in ownership of SSE Holdings on ourthe Company's equity during the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020.
Thirteen Weeks Ended
March 31
2021
March 25
2020
Net income (loss) attributable to Shake Shack Inc.$1,309 $(960)
Transfers (to) from non-controlling interests:
Increase in additional paid-in capital as a result of the redemption of LLC Interests36 195 
Increase (decrease) in additional paid-in capital as a result of activity under stock compensation plans and the related income tax effect3,359 424 
Total effect of changes in ownership interest on equity attributable to Shake Shack Inc.$4,704 $(341)
Thirteen Weeks EndedThirty-Nine Weeks Ended
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Net income (loss) attributable to Shake Shack Inc.$(2,178)$(5,559)$1,075 $(22,730)
Other comprehensive income:
Increase in additional paid-in capital as a result of the redemption of LLC Interests— 44 33 239 
Increase (decrease) in additional paid-in capital as a result of activity under stock compensation plans and the related income tax effects(386)367 2,186 627 
Increase in additional paid-in capital as a result of the issuance of Class A common stock sold in equity offerings— — — 135,718 
Total effect of changes in ownership interest on equity (loss) attributable to Shake Shack Inc.$(2,564)$(5,148)$3,294 $113,854 
The following table summarizes redemptions of LLC Interests activity during the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Redemption and acquisition of LLC InterestsRedemption and acquisition of LLC InterestsRedemption and acquisition of LLC Interests
Number of LLC Interests redeemed by non-controlling interest holders29,600 28,195 Number of LLC Interests redeemed by non-controlling interest holders— 5,000 29,601 33,195 
Number of LLC Interests received by Shake Shack Inc.29,600 28,195 Number of LLC Interests received by Shake Shack Inc.— 5,000 29,601 33,195 
Issuance of Class A common stockIssuance of Class A common stockIssuance of Class A common stock
Shares of Class A common stock issued in connection with redemptions of LLC Interests29,600 28,195 Shares of Class A common stock issued in connection with redemptions of LLC Interests— 5,000 29,601 33,195 
Cancellation of Class B common stockCancellation of Class B common stockCancellation of Class B common stock
Shares of Class B common stock surrendered and canceled29,600 28,195 Shares of Class B common stock surrendered and canceled— 5,000 29,601 33,195 
During the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25, 2020, wethe Company received an aggregate of 355,8495,023 and 77,903391,988 LLC Interests, respectively, in connection with the activity under ourits stock compensation plan.
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plan and 38,564 and 180,068 LLC Interests, respectively, during the thirteen and thirty-nine weeks ended September 23, 2020.

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NOTE 9: EQUITY-BASED COMPENSATION
A summary of equity-based compensation expense recognized during the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020 is as follows:
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Stock optionsStock options$20 $261 Stock options$— $14 $$301 
Performance stock unitsPerformance stock units414 413 Performance stock units868 233 2,065 1,009 
Restricted stock unitsRestricted stock units1,247 626 Restricted stock units1,456 1,092 3,895 2,748 
Equity-based compensation expenseEquity-based compensation expense$1,681 $1,300 Equity-based compensation expense$2,324 $1,339 $5,963 $4,058 
Total income tax benefit recognized related to equity-based compensationTotal income tax benefit recognized related to equity-based compensation$67 $36 Total income tax benefit recognized related to equity-based compensation$44 $60 $174 $135 
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Equity-based compensation expense is included in General and administrative expenses and Labor and related expenses on the Condensed Consolidated Statements of Income (Loss) during the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020 as follows:
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
General and administrative expensesGeneral and administrative expenses$1,541 $1,214 General and administrative expenses$2,094 $1,199 $5,358 $3,681 
Labor and related expensesLabor and related expenses140 86 Labor and related expenses230 140 605 377 
Equity-based compensation expenseEquity-based compensation expense$1,681 $1,300 Equity-based compensation expense$2,324 $1,339 $5,963 $4,058 
NOTE 10: INCOME TAXES
We areShake Shack is the sole managing member of SSE Holdings and, as a result, consolidateconsolidates the financial results of SSE Holdings. SSE Holdings 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,the Company, on a pro rata basis. We areThe Company is subject to U.S. federal income taxes, in addition to state and local income taxes with respect to ourits 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 areThe Company is also subject to withholding taxes in foreign jurisdictions.
OurThe effective income tax rates for the thirteen weeks ended March 31,September 29, 2021 and March 25,September 23, 2020 were 105.5%19.3% and (8.8)%11.5%, respectively. The increase was primarily driven by lowerhigher tax credits and a decrease in pre-tax bookloss. Additionally, an increase in the Company's ownership interest in SSE Holdings increases its share of the taxable income resulting(loss) of SSE Holdings. The weighted-average ownership interest in SSE Holdings was 93.1% and 92.5% for the thirteen weeks ended September 29, 2021 and September 23, 2020, respectively.
The effective income tax rates for the thirty-nine weeks ended September 29, 2021 and September 23, 2020 were 102.3% and 21.2%, respectively. The increase was primarily driven by a decrease in the pre-tax book loss, causing tax credits and windfall tax benefits related to equity-based compensation to have an increasing effect on the tax rate, as well as a reduction of a valuation allowance. Additionally, an increase in our ownership interest in SSE Holdings increases our share of the taxable income (loss) of SSE Holdings. OurThe Company's weighted-average ownership interest in SSE Holdings was 93.0% and 91.6%92.1% for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020, respectively.
Deferred Tax Assets and Liabilities
During the thirteenthirty-nine weeks ended March 31,September 29, 2021, wethe Company acquired an aggregate of 385,449421,589 LLC Interests in connection with the redemption of LLC Interests, and activity relating to ourits stock compensation plan. WeThe Company recognized a deferred tax asset in the amount of $10,204$10,190 associated with the basis difference in ourits investment in SSE Holdings upon acquisition of these LLC Interests. As of March 31,September 29, 2021, the total deferred tax asset related to the basis difference in ourthe Company's investment in SSE Holdings was $142,867.$131,232. However, a portion of the total basis difference will only reverse upon the eventual sale of ourits interest in SSE Holdings, which we expectthe Company expects would result in a capital loss. As of March 31,September 29, 2021, the total valuation allowance established against the deferred tax asset to which this portion relates was $1,260.$980.
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During the thirteenthirty-nine weeks ended March 31,September 29, 2021, wethe Company also recognized $300 of deferred tax assets related to additional tax basis increases generated from expected future payments under the Tax Receivable Agreement and related deductions for imputed interest on such payments. SeeRefer to "Tax Receivable Agreement," herein for moreadditional information.
We evaluateThe Company evaluates the realizability of ourits deferred tax assets on a quarterly basis and establishestablishes valuation allowances when it is more likely than not that all or a portion of a deferred tax asset may not be realized. As of March 31,September 29, 2021, wethe Company concluded, based on the weight of all available positive and negative evidence, that all of ourits deferred tax assets (except for those deferred tax assets described above relating to basis differences that are expected to result in a capital loss upon eventual sale of ourits interest in SSE Holdings, New York City UBT credits and certain foreign tax credits) are more likely than not to be realized. As such, 0no additional valuation allowance was recognized.
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Tax Receivable Agreement
Pursuant to ourthe Company's election under Section 754 of the Internal Revenue Code (the "Code"), we expectthe Company expects to obtain an increase in ourits share of the tax basis in the net assets of SSE Holdings when LLC Interests are redeemed or exchanged by the other members of SSE Holdings. We planThe Company plans to make an election under Section 754 of the Code for each taxable year in which a redemption or exchange of LLC Interest occurs. We intendThe Company intends to treat any redemptions and exchanges of LLC Interests as direct purchases of LLC Interests for U.S. federal income tax purposes. These increases in tax basis may reduce the amounts that we would otherwise paybe paid in the future to various tax authorities. They may also decrease gains (or increase losses) on future dispositions of certain capital assets to the extent tax basis is allocated to those capital assets.
On February 4, 2015, wethe Company entered into a tax receivable agreement with certain of the then-existing members of SSE Holdings (the "Tax Receivable Agreement") that provides for the payment by usthe Company of 85% of the amount of any tax benefits that weare actually realize,realized, or in some cases are deemed to realize, as a result of (i) increases in ourthe Company's share of the tax basis in the net assets of SSE Holdings resulting from any redemptions or exchanges of LLC Interests, (ii) tax basis increases attributable to payments made under the Tax Receivable Agreement, and (iii) deductions attributable to imputed interest pursuant to the Tax Receivable Agreement (the "TRA Payments"). We expectThe Company expects to benefit from the remaining 15% of any tax benefits that we may actually realize. The TRA Payments are not conditioned upon any continued ownership interest in SSE Holdings or us.the Company. The rights of each member of SSE Holdings that is a party to the Tax Receivable Agreement, are assignable to transferees of their respective LLC Interests.
During the thirteenthirty-nine weeks ended March 31,September 29, 2021, wethe Company acquired an aggregate of 29,60029,601 LLC Interests in connection with the redemption of LLC Interests, which resulted in an increase in the tax basis of ourits investment in SSE Holdings subject to the provisions of the Tax Receivable Agreement. WeThe Company recognized an additional liability in the amount of $1,094$1,093 for the TRA Payments due to the redeeming members, representing 85% of the aggregate tax benefits we expectthe Company expects to realize from the tax basis increases related to the redemption of LLC Interests, after concluding it was probable that such TRA Payments would be paid based on our estimates of future taxable income. During the thirteenthirty-nine weeks ended March 31,September 29, 2021, and March 25,the Company made no payments to the parties to the Tax Receivable Agreement. During the thirty-nine weeks ended September 23, 2020, payments of $0 and $6,569,$6,643, inclusive of interest, were made to the parties to the Tax Receivable Agreement, respectively.Agreement. As of March 31,September 29, 2021, the total amount of TRA Payments due under the Tax Receivable Agreement, was $234,048. SeeRefer to Note 13, Commitments and Contingencies, for moreadditional information relating to ourthe liabilities under the Tax Receivable Agreement.
NOTE 11: EARNINGS (LOSS) PER SHARE
The following table sets forth reconciliations of the numerators and denominators used to compute basic and diluted earnings (loss) per share of Class A common stock (in thousands, except per share amounts) for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020.
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Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Numerator:Numerator:Numerator:
Net income (loss) attributable to Shake Shack Inc.—basic$1,309 $(960)Net income (loss) attributable to Shake Shack Inc.—basic$(2,178)$(5,559)$1,075 $(22,730)
Reallocation of net loss attributable to non-controlling interests from the assumed conversion of Class B shares(734)Reallocation of net income (loss) attributable to non-controlling interests from the assumed conversion of Class B shares— — (837)— 
Net income (loss) attributable to Shake Shack Inc.—diluted$575 $(960)Net income (loss) attributable to Shake Shack Inc.—diluted$(2,178)$(5,559)$238 $(22,730)
Denominator:Denominator:Denominator:
Weighted-average shares of Class A common stock outstanding—basic38,948 34,444 Weighted-average shares of Class A common stock outstanding—basic39,137 38,251 39,066 36,668 
Effect of dilutive securities:Effect of dilutive securities:
Stock options232 Stock options— — 162 — 
Performance stock units53 Performance stock units— — 39 — 
Restricted stock units164 Restricted stock units— — 124 — 
Convertible Notes451 Convertible Notes— — 1,129 — 
Shares of Class B common stock2,941 Shares of Class B common stock— — 2,928 — 
Weighted-average shares of Class A common stock outstanding—diluted42,789 34,444 
Weighted-average shares of Class A common stock outstanding—diluted39,137 38,251 43,448 36,668 
Earnings (loss) per share of Class A common stock—basicEarnings (loss) per share of Class A common stock—basic$0.03 $(0.03)Earnings (loss) per share of Class A common stock—basic$(0.06)$(0.15)$0.03 $(0.62)
Earnings (loss) per share of Class A common stock—dilutedEarnings (loss) per share of Class A common stock—diluted$0.01 $(0.03)Earnings (loss) per share of Class A common stock—diluted$(0.06)$(0.15)$0.01 $(0.62)
Shares of our Class B common stock do not share in the earnings or losses of Shake Shack and are therefore not participating securities. As such, separate presentation of basic and diluted earnings (loss) per share of Class B common stock under the two-class method has not been presented. However, shares of our Class B common stock outstanding for the period are considered potentially dilutive shares of Class A common stock under application of the if-converted method and are included in the computation of diluted earnings (loss) per share, except when the effect would be antidilutive.
The following table presents potentially dilutive securities, as of the end of the period, excluded from the computations of diluted earnings (loss) per share of Class A common stock for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Stock optionsStock options1,698 (1)847,207 (3)Stock options— 764,902 (2)— 764,902 (2)
Performance stock unitsPerformance stock units51,974 (2)179,253 (3)Performance stock units45,707 (1)139,081 (2)45,707 (1)139,081 (2)
Restricted stock unitsRestricted stock units264,431 (3)Restricted stock units— 262,232 (2)— 262,232 (2)
Shares of Class B common stockShares of Class B common stock3,117,002 (3)Shares of Class B common stock— 3,112,002 (2)— 3,112,002 (2)
(1)    Number of securities outstanding at the end of the period that were excluded from the computation of diluted earnings (loss) per share of Class A common stock because the exercise price of the stock options exceeded the average market price of our Class A common stock during the period ("out-of-the-money").
(2)    Number of securities outstanding at the end of the period that were excluded from the computation of diluted earnings (loss) per share of Class A common stock because the performance conditions associated with these awards were not met assuming the end of the reporting period was the end of the performance period.
(3)    (2)Number of securities outstanding at the end of the period that were excluded from the computation of diluted earnings (loss) per share of Class A common stock because the effect would have been anti-dilutive.
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NOTE 12: SUPPLEMENTAL CASH FLOW INFORMATION
The following table sets forth supplemental cash flow information for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020:
Thirteen Weeks EndedThirty-Nine Weeks Ended
March 31
2021
March 25
2020
September 29
2021
September 23
2020
Cash paid for:Cash paid for:Cash paid for:
Income taxes, net of refunds$388 $801 Income taxes, net of refunds$1,788 $1,270 
Interest, net of amounts capitalized70 61 Interest, net of amounts capitalized198 584 
Non-cash investing activities:Non-cash investing activities:Non-cash investing activities:
Accrued purchases of property and equipment15,661 9,544 
Accrued purchases of property and equipment12,949 13,715 
Capitalized equity-based compensation47 29 
Capitalized equity-based compensation13 
Non-cash financing activities:Non-cash financing activities:Non-cash financing activities:
Revolving Credit Facility amendment-related accrual112 Revolving Credit Facility amendment-related accrual46 — 
Convertible Notes issuance-related accrual312 Convertible Notes issuance-related accrual107 — 
Establishment of liabilities under tax receivable agreement1,094 310 Establishment of liabilities under tax receivable agreement1,093 414 
NOTE 13: COMMITMENTS AND CONTINGENCIES
Lease Commitments
We areThe Company is obligated under various operating leases for Shacks and ourthe home office space, expiring in various years through 2037.2038. Under certain of these leases, we arethe Company is liable for contingent rent based on a percentage of sales in excess of specified thresholds and are typically responsible for ourits proportionate share of real estate taxes, common area maintenance costs and other occupancy costs. SeeRefer to Note 7, Leases.Leases, for additional information.
As security under the terms of one of ourthe leases, we arethe Company is obligated under a letter of credit totaling $130 as of March 31,September 29, 2021, which expires in February 2026. Additionally, in September 2017, wethe Company entered into a letter of credit in conjunction with ourthe new home office lease in the amount of $603, which expires in August 20212022 and renews automatically for one-year periods through January 31, 2034.
Purchase Commitments
Purchase obligations include legally binding contracts, including commitments for the purchase, construction or remodeling of real estate and facilities, firm minimum commitments for inventory purchases, equipment purchases, marketing-related contracts, software acquisition/license commitments and service contracts. These obligations are generally short-term in nature and are recorded as liabilities when the related goods are received or services rendered. WeThe Company also enterenters into long-term, exclusive contracts with certain vendors to supply us with food, beverages and paper goods, obligating usthe Company to purchase specified quantities.
Legal Contingencies
In March 2020, a claim was filed against Shake Shack alleging certain violations of the Fair Labor Standards Act. At a mediation between the parties, wethe Company agreed to settle the matter with the plaintiff and other employees who elect to participate in the settlement for $595. As of$619. The Company initially accrued for this matter during the thirteen weeks ended March 31, 2021 with an additional accrual established during the thirteen weeks ended June 30, 2021, and paid in the amountfull as of $595 was recorded for this matter and related expenses.

In February 2018, a claim was filed against Shake Shack in California state court alleging certain violations of the California Labor Code. At a mediation between the parties, we agreed to settle the matter with the plaintiff and all other California employees who elect to participate in the settlement for $1,200. As of March 31, 2021, an accrual in the amount of $1,180 was recorded for this matter and related expenses.September 29, 2021.

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We areThe Company is subject to various legal proceedings, claims and liabilities, such as employment-related claims and slip and fall cases, which arise in the ordinary course of business and are generally covered by insurance. As of March 31,September 29, 2021, the amount of the ultimate liability with respect to these matters was not material.
Liabilities under Tax Receivable Agreement
As described in Note 10, Income Taxes, we arethe Company is a party to the Tax Receivable Agreement under which we areit is contractually committed to pay certain of the members of SSE Holdings 85% of the amount of any tax benefits that weare actually realize,realized, or in some cases are deemed to realize, as a result of certain transactions. We areThe Company is not obligated to make any payments under the Tax Receivable Agreement until the tax benefits associated with the transactions that gave rise to the payments are realized. Amounts payable under the Tax Receivable Agreement are contingent upon, among other things, (i) generation of future taxable income over the term of the Tax Receivable Agreement and (ii) future changes in tax laws. If we dothe Company does not generate sufficient taxable income in the aggregate over the term of the Tax Receivable Agreement to utilize the tax benefits, then weit would not be required to make the related TRA Payments. During the thirteenthirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020, wethe Company recognized liabilities totaling $1,094$1,093 and $310,$414, respectively, relating to ourthe obligations under the Tax Receivable Agreement, after concluding that it was probable that weit would have sufficient future taxable income over the term of the Tax Receivable Agreement to utilize the related tax benefits. As of March 31,September 29, 2021 and December 30, 2020, ourthe total obligations under the Tax Receivable Agreement were $234,048 and $232,954, respectively. There were no transactions subject to the Tax Receivable Agreement for which wethe Company did not recognize the related liability, as wethe Company concluded that weit would have sufficient future taxable income to utilize all of the related tax benefits.
NOTE 14: RELATED PARTY TRANSACTIONS
Union Square Hospitality Group
The Chairman of ourthe Board of Directors serves as the Chief Executive Officer of Union Square Hospitality Group, LLC. As a result, Union Square Hospitality Group, LLC and its subsidiaries, set forth below, are considered related parties.
Hudson Yards Sports and Entertainment
In fiscal 2011, weShake Shack entered into a Master License Agreement (as amended, "MLA") with Hudson Yards Sports and Entertainment LLC ("HYSE") to operate Shake Shack branded limited menu concession stands in sports and entertainment venues within the United States. In February 2019, the agreement was assigned to Hudson Yards Catering ("HYC"), the parent of HYSE. The agreement expires in January 2027 and includes 5 consecutive five-year renewal options at HYC's option. As consideration for these rights, HYC pays usthe Company a license fee based on a percentage of net food sales, as defined in the MLA. HYC also pays us a percentage of profits on sales of branded beverages, as defined in the MLA.
Thirteen Weeks Ended
ClassificationMarch 31
2021
March 25
2020
Amounts received from HYCLicensing revenue$$22 
Thirteen Weeks EndedThirty-Nine Weeks Ended
ClassificationSeptember 29
2021
September 23
2020
September 29
2021
September 23
2020
Amounts received from HYCLicensing revenue$185 $26 $243 $60 
ClassificationMarch 31
2021
December 30
2020
Amounts due from HYCAccounts Receivable$$
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ClassificationSeptember 29
2021
December 30
2020
Amounts due from HYCAccounts receivable, net$— $
Madison Square Park Conservancy
The Chairman of ourthe Board of Directors serves as a director of the Madison Square Park Conservancy ("MSP Conservancy"), with which we haveShake Shack has a license agreement and paypays license fees to operate ourthe Madison Square Park Shack. NaNNo amounts were due to MSP Conservancy as of both March 31,September 29, 2021 and December 30, 2020.
Thirteen Weeks Ended
ClassificationMarch 31
2021
March 25
2020
Amounts paid to MSP ConservancyOccupancy and related expenses$215 $219 
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Thirteen Weeks EndedThirty-Nine Weeks Ended
ClassificationSeptember 29
2021
September 23
2020
September 29
2021
September 23
2020
Amounts paid to MSP ConservancyOccupancy and related expenses$215 $173 $646 $392 
Olo, Inc.
The Chairman of ourthe Board of Directors serves as a director of Olo, Inc. (formerly known as "Mobo Systems, Inc."), a platform we usethe Company uses in connection with ourits mobile ordering application. NaN amounts were due to Olo as of both March 31, 2021 and December 30, 2020.
Thirteen Weeks Ended
ClassificationMarch 31
2021
March 25
2020
Amounts paid to OloOther operating expenses$147 $52 
Thirteen Weeks EndedThirty-Nine Weeks Ended
ClassificationSeptember 29
2021
September 23
2020
September 29
2021
September 23
2020
Amounts paid to Olo, Inc.Other operating expenses$130 $75 $340 $169 
ClassificationSeptember 29
2021
December 30
2020
Amounts due to Olo, Inc.Accounts payable$31 $— 
Square, Inc.
OurThe Company's Chief Executive Officer is a member of the Boardboard of Directorsdirectors of Square, Inc. ("Square"). WeThe Company currently useuses certain point-of-sale applications, payment processing services, hardware and other enterprise platform services in connection with the processing of a limited amount of sales at certain of our locations, sales for certain off-site events and in connection with ourits kiosk technology.
Thirteen Weeks Ended
ClassificationMarch 31
2021
March 25
2020
Amounts paid to SquareOther operating expenses$462 $571 
Thirteen Weeks EndedThirty-Nine Weeks Ended
ClassificationSeptember 29
2021
September 23
2020
September 29
2021
September 23
2020
Amounts paid to SquareOther operating expenses$833 $419 $2,049 $1,208 
Thirteen Weeks Ended
ClassificationMarch 31September 29
2021
March 25December 30
2020
Amounts due to SquareAccounts Payablepayable$918 $— 
USHG Acquisition Corp.
OurThe Company's Chief Executive Officer has been appointed to the board of directors of USHG Acquisition Corp. in which the Company's Chairman of ourthe Board of Directors serves as the chairman of the board of directors of USHG Acquisition Corp. USHG Acquisition Corp. is a newly organized blank check company incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses or entities. No amounts were due to or due from USHG Acquisition Corp as of both March 31,September 29, 2021 and December 30, 2020.
Tax Receivable Agreement
As described in Note 10, Income Taxes, weThe Company entered into a Tax Receivable Agreement with certain members of SSE Holdings that provides for the payment by usthe Company of 85% of the amount of any tax benefits if any, that Shake Shackare actually realizesrealized, or in some cases isare deemed to realize, as a result of certain transactions. Refer to Note 10, Income Taxes, for additional information.
Thirteen Weeks EndedThirty-Nine Weeks Ended
ClassificationSeptember 29
2021
September 23
2020
September 29
2021
September 23
2020
Amounts paid to members (inclusive of interest)Other current liabilities$— $— $— $6,643 
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Thirteen Weeks Ended
ClassificationMarch 31
2021
March 25
2020
Amounts paid to members (inclusive of interest)Other current liabilities$$6,569 
ClassificationMarch 31
2021
December 30
2020
Amounts due under the Tax Receivable AgreementOther current liabilities
Liabilities under tax receivable agreement, net of current portion
$234,048 $232,954 
ClassificationSeptember 29
2021
December 30
2020
Amounts due under the Tax Receivable AgreementOther current liabilities
Liabilities under tax receivable agreement, net of current portion
$234,048 $232,954 
Distributions to Members of SSE Holdings
Under the terms of the SSE Holdings LLC Agreement, SSE Holdings is obligated to make tax distributions to its members. NaNNo tax distributions were payable to non-controlling interest holders as of March 31,September 29, 2021 and December 30, 2020, respectively.
Thirteen Weeks Ended
ClassificationMarch 31
2021
March 25
2020
Amounts paid to non-controlling interest holdersNon-controlling interests$467 $305 
Thirteen Weeks EndedThirty-Nine Weeks Ended
ClassificationSeptember 29
2021
September 23
2020
September 29
2021
September 23
2020
Amounts paid to non-controlling interest holdersNon-controlling interests$172 $164 $878 $478 

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations.
This section and other parts of this Quarterly Report on Form 10-Q ("Form 10-Q") contain forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995 ("PSLRA"), which are subject to known and unknown risks, uncertainties and other important factors that may cause actual results to be materially different from the statements made herein. All statements other than statements of historical fact included in this Form 10-Q are forward-looking statements.statements, including, but not limited to, statements about our growth, strategic plan, and our liquidity. Forward-looking statements discuss our current expectations and projections relating to our financial position, results of operations, plans, objectives, future performance and business. You can identify forward-looking statements by the fact that they do not relate strictly to any historical or current facts. These statements may include words such as "aim," "anticipate," "believe," "estimate," "expect," "forecast," "future," "intend," "outlook," "potential," "project," "projection," "plan," "seek," "may," "could," "would," "will," "should," "can," "can have," "likely," the negatives thereof and other similar expressions. All forward-looking statements are expressly qualified in their entirety by these cautionary statements. Some of the factors which could cause results to differ materially from the Company's expectations include the continuing impact of the COVID-19 pandemic, including the potential impact of any COVID-19 variants, the Company's ability to develop and open new Shacks on a timely basis, increased costs or shortages or interruptions in the supply or delivery of our products, increased labor costs or shortages, the Company's management of its digital capabilities and expansion into delivery, our ability to maintain and grow sales at our existing Shacks, and risks relating to the restaurant industry generally. You should evaluate all forward-looking statements made in this Form 10-Q in the context of the risks and uncertainties disclosed in our Annual Report on Form 10-K for the fiscal year ended December 30, 2020 ("2020 Form 10-K"). The forward-looking statements included in this Form 10-Q are made only as of the date hereof. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.

The following discussion should be read in conjunction with our 2020 Form 10-K and the condensed consolidated financial statements and notes thereto included in Part I, Item 1 of this Form 10-Q. All information presented herein is based on our fiscal calendar. Unless otherwise stated, references to particular years, quarters, months or periods refer to our fiscal years and the associated quarters, months and periods of those fiscal years.
OVERVIEW
Shake Shack is a modern day "roadside" burger stand serving a classic American menu of premium burgers, chicken sandwiches, hot dogs, crinkle cutcrinkle-cut fries, shakes, frozen custard, beer and wine. As of March 31,September 29, 2021, there were 321350 Shacks in operation system-wide, of which 192205 were domestic Company-operated Shacks, 2224 were domestic licensed Shacks and 107121 were international licensed Shacks.
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Recent Developments and Trends
We have experienced continued positive momentum in the business during the first quarter of 2021, and through April 28 ("fiscal April"), all while continuing to support our Shack teams, our guests and the communities in which we operate during the COVID-19 pandemic. With COVID cases stabilizing and more regions steadily loosening restrictions, we are optimistic that improving trends can continue for our industry. With a continued prioritization on health and safety, we have steadily re-opened dining rooms under modified operations to meet public health guidelines and evolving customer behaviors and expectations.
Same-Shack sales continued to improve across all regions, up 5.7% in the first quarter 2021, when compared to down 17.4% in the fourth quarter 2020, with performance driven by increases in in-Shack dining in both urban and suburban Shacks, combined with high levels of digital sales retention. Same-Shack sales in fiscal April were up 86% compared to the same period last year. As of the end of fiscal April 2021, the vast majority of Shacks were operating with open dining rooms, the majority of which continue to remain under varying levels of capacity restrictions, especially in urban Shacks. The Company continues to experience recovery across urban and suburban markets, however many major urban markets, such as Manhattan, remain materially below pre-COVID levels, while office, events and tourism traffic return.
Average weekly sales were $64,000 in the first quarter of 2021. Fiscal February was heavily impacted by severe winter weather, resulting in average weekly sales of $60,000, followed by a significant improvement to $68,000 in fiscal March, and continuing through fiscal April with $69,000. This continued improvement was driven by a substantial increase in in-Shack sales, as well as a high retention of digital sales.

During the first quarter of 2021, total digital sales, including orders placed on the Shake Shack app, website and third-party delivery platforms, represented 60% of Shack sales. Fiscal January and February digital mix was 64% and 62% of Shack sales, respectively, driven largely by increased delivery due to bad weather across large portions of the United States. Digital sales mix decreased to 54% of Shack sales in fiscal March and 51% of Shack sales in fiscal April, driven by an increase in in-Shack dining as the weather improved and parts of the country continued to re-open. Encouragingly, while in-Shack dining continues to increase, there continues to be a high level of digital sales retention with 90% of fiscal January's digital sales retained in fiscal April. Company-owned app and web channels continued to perform well in the first quarter 2021, with 2.4 million first-time purchasers between mid-March of 2020 and the end of fiscal March 2021, and over 230% year-over-year sales growth, when compared to the first quarter 2020.

Licensing revenue for the first quarter of 2021 was $4.6 million, reflecting a decrease of 9.9% versus the same period last year. We did, however, see improvement in total weekly sales performance throughout the quarter, with sales recovery led by improvements in both our international and domestic licensed Shacks, particularly in airports which are experiencing increases in Transportation Security Administration ("TSA") flight traffic.

Development Highlights
During the first quarter 2021, we opened ten new domestic Company-operated Shacks and two new international licensed Shacks. These openings were partially offset by the closure of one domestic Company-operated Shack and one international licensed Shack.
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LocationTypeOpening Date
Kuwait City, Kuwait — WaterfrontInternational Licensed1/28/2021
Plymouth Meeting, PA — Plymouth MeetingDomestic Company-Operated2/4/2021
Nanuet, NY — NanuetDomestic Company-Operated2/8/2021
Dubai, UAE — First Avenue Mall, Motor CityInternational Licensed2/11/2021
Ardmore, PA — Suburban SquareDomestic Company-Operated2/19/2021
Towson, MD — TowsonDomestic Company-Operated2/20/2021
Woburn, MA — WoburnDomestic Company-Operated3/1/2021
Huntersville, NC — HuntersvilleDomestic Company-Operated3/2/2021
Nashville, TN — Downtown NashvilleDomestic Company-Operated3/4/2021
New York, NY — Bryant ParkDomestic Company-Operated3/22/2021
Boulder, CO — BoulderDomestic Company-Operated3/26/2021
Hoboken, NJ — HobokenDomestic Company-Operated3/29/2021
As of May 6, 2021, we have opened another five domestic Company-operated Shacks, and expect a total of 16 to 18 openings by the mid-year point. Though our rate of recovery and development plans continue to be impacted by the ongoing uncertainty due to COVID, we are aiming to open a total of between 35 and 40 new domestic Company-operated Shacks, and 15 to 20 new licensed Shacks, in fiscal 2021.
Liquidity Update
In March 2021, we issued $225 million aggregate principal amount of 0% Convertible Senior Notes due 2028 (the “Convertible Notes”) in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933. We granted an option to the initial purchasers to purchase up to an additional $25 million aggregate principal amount of Convertible Notes to cover over-allotments, which was subsequently fully exercised during March 2021, resulting in a total issuance of $250 million aggregate principal amount of Convertible Notes. The Convertible Notes will mature on March 1, 2028, unless earlier converted, redeemed or repurchased in certain circumstances. Upon conversion, we pay or deliver, as the case may be, cash, shares of Shake Shack’s Class A common stock or a combination of cash and shares of Shake Shack’s Class A common stock, at our election.
Financial Highlights for the First Quarter 2021
Total revenue in the first quarter 2021 increased 8.5% to $155.3 million versus the same period last year.
Shack sales in the first quarter 2021 increased 9.1% to $150.7 million versus the same period last year. Total Shack sales improved further in fiscal April with an increase of 171% versus the same period last year.
Same-Shack sales1 improved to up 5.7% in the first quarter 2021 versus the same period last year. In fiscal April, Same-Shack sales continued to recover, with an increase of 86% versus the same period last year.
Licensed revenue in the first quarter 2021 decreased 9.9% to $4.6 million versus the same period last year.
��Shack system-wide sales in the first quarter 2021 increased 3.0% to $228.3 million, versus the same period last year.
Operating loss in the first quarter 2021 was $10.0 million compared to an operating loss of $0.8 million in the same period last year.
Shack-level operating profit2 decreased 14.3% to $22.6 million, or 15.0% of Shack sales in the first quarter 2021, versus the same period last year.
Net income was $0.6 million and adjusted EBITDA2 was $7.1 million in the first quarter 2021, compared to a net loss of $1.1 million and adjusted EBITDA of $14.3 million in the same period last year.
Net income attributable to Shake Shack Inc. was $1.3 million and adjusted pro forma net income2 was $1.8 million, or $0.04 per fully exchanged and diluted share in the first quarter 2021, compared to net loss attributable to Shake Shack Inc. of $1.0 million and adjusted pro forma net income of $0.8 million, or $0.02 per fully exchanged and diluted share, in the same period last year.
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Net system-wide
Recent Developments and Trends
The third quarter of 2021 marked the highest sales in the Company's history. Despite achieving this sales milestone, increasing costs continued to challenge the business, mainly in labor and commodity inflation. We also experienced certain supply chain disruptions during the quarter. Although these did not have a material impact on the financial performance for this period, we cannot be certain future supply chain disruptions will not materially impact our financial results.
Same-Shack sales for the thirteen weeks ended September 29, 2021 increased 24.8% compared to the same period last year, with urban Shacks increasing 34.0% and suburban Shacks increasing 17.1%. The increase in same-Shack sales for the third quarter 2021 was driven by a 25.8% increase in guest traffic due to the return of in-Shack dining. Same-Shack sales for the thirty-nine weeks ended September 29, 2021 increased 25.8% compared to the same period last year, primarily driven by a 19.7% increase in guest traffic and an increase in price mix of 6.1%. For the purpose of calculating same-Shack sales growth for the thirteen weeks ended September 29, 2021, Shack openings, comprisedsales for 143 Shacks were included in the comparable Shack base, and for the thirty-nine weeks ended September 29, 2021, Shack sales for 144 Shacks were included in the comparable Shack base.
Average weekly sales held steady at $72,000 in the third quarter of nine net2021 compared to the second quarter of 2021 driven by the opening of five new domestic Company-operated Shacks and one net licensed Shack.the re-opening of two domestic Company-operated Shacks that had been closed due to COVID-19. Shack system-wide sales in the third quarter of 2021 increased 53.1% to $298.6 million versus the same period last year.
Digital sales for the thirteen and thirty-nine weeks ended September 29, 2021 increased 4.3% and 51.3% respectively, compared to the same period last year. During the third quarter of 2021, total digital sales, including orders placed on the Shake Shack app, website and third-party delivery platforms, represented 42.3% of Shack sales. Digital sales retention was nearly 80% in fiscal September when compared to fiscal January when digital sales peaked. During the third quarter of 2021 our new purchasers in Company-owned app and web channels grew 14.3% versus the second quarter of 2021, to 3.2 million total new purchasers since mid-March of 2020.
Cash and marketable securities on hand was $415.9 million as of March 31, 2021.

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Development Highlights
During the third quarter of 2021, same-Shack sales will compare the 52 weeks from December 31, 2020 through December 29, 2021 to the 52 weeks from January 2, 2020 through December 30, 2020. For Q1 2021, same-Shack sales compares the thirteen weeks from December 31, 2020 through March 31, 2021 to the thirteen weeks from January 2, 2021 through April 1, 2021.
2This represents a non-GAAP measure. Reconciliations to the most directly comparable financial measures presented in accordance with GAAP are set forthwe opened five new domestic Company-operated Shacks, one new domestic licensed Shack and seven new international licensed Shacks. There were two permanent international licensed Shack closures in the schedules within “Non-GAAP Financial Measures,” herein.third quarter of 2021.

LocationTypeOpening Date
Somerville, MA – Assembly RowDomestic Company-operated7/5/2021
Shanghai, China – Qiantan Taikoo LiInternational Licensed7/15/2021
Denver, CO – Denver International AirportDomestic Licensed7/20/2021
Mexico City, MX – Colonia del ValleInternational Licensed7/21/2021
Burlington, MA – Burlington MallDomestic Company-operated8/3/2021
Hwaseong, South Korea – Dongtanyeakro 160International Licensed8/20/2021
Singapore, Singapore – Gardens By The BayInternational Licensed8/28/2021
Orlando, FL – Orlando Premium OutletsDomestic Company-operated8/30/2021
Monterrey, MX – ArboledaInternational Licensed9/2/2021
Everett, MA – Encore Boston HarborDomestic Company-operated9/10/2021
Seoul, South Korea – HongdaeInternational Licensed9/17/2021
Hangzhou, China – The MixCInternational Licensed9/23/2021
Oak Lawn, IL – Oak LawnDomestic Company-operated9/24/2021
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RESULTS OF OPERATIONS
The following table summarizes our results of operations for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020:
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Shack salesShack sales$150,668 97.0 %$138,048 96.4 %Shack sales$186,972 96.4 %$126,288 96.8 %$519,110 96.7 %$353,855 96.9 %
Licensing revenueLicensing revenue4,614 3.0 %5,122 3.6 %Licensing revenue6,923 3.6 %4,113 3.2 %17,527 3.3 %11,502 3.1 %
TOTAL REVENUETOTAL REVENUE155,282 100.0 %143,170 100.0 %TOTAL REVENUE193,895 100.0 %130,401 100.0 %536,637 100.0 %365,357 100.0 %
Shack-level operating expenses(1):
Shack-level operating expenses(1):
Shack-level operating expenses(1):
Food and paper costs44,630 29.6 %39,564 28.7 %Food and paper costs57,925 31.0 %37,903 30.0 %157,472 30.3 %107,494 30.4 %
Labor and related expenses46,382 30.8 %41,766 30.3 %Labor and related expenses58,208 31.1 %37,898 30.0 %157,221 30.3 %110,597 31.3 %
Other operating expenses23,144 15.4 %17,779 12.9 %Other operating expenses26,613 14.2 %18,743 14.8 %74,032 14.3 %50,826 14.4 %
Occupancy and related expenses13,911 9.2 %12,558 9.1 %Occupancy and related expenses14,640 7.8 %13,093 10.4 %43,427 8.4 %37,974 10.7 %
General and administrative expensesGeneral and administrative expenses19,565 12.6 %16,191 11.3 %General and administrative expenses20,504 10.6 %14,962 11.5 %60,435 11.3 %45,170 12.4 %
Depreciation and amortization expenseDepreciation and amortization expense13,726 8.8 %11,768 8.2 %Depreciation and amortization expense15,183 7.8 %12,376 9.5 %43,381 8.1 %36,233 9.9 %
Pre-opening costsPre-opening costs3,576 2.3 %2,243 1.6 %Pre-opening costs2,933 1.5 %1,822 1.4 %8,767 1.6 %5,799 1.6 %
Impairment and loss on disposal of assetsImpairment and loss on disposal of assets369 0.2 %2,088 1.5 %Impairment and loss on disposal of assets535 0.3 %402 0.3 %1,262 0.2 %2,924 0.8 %
TOTAL EXPENSESTOTAL EXPENSES165,303 106.5 %143,957 100.5 %TOTAL EXPENSES196,541 101.4 %137,199 105.2 %545,997 101.7 %397,017 108.7 %
OPERATING LOSS(10,021)(6.5)%(787)(0.5)%
Other income (expense), net31 — %(93)(0.1)%
LOSS FROM OPERATIONSLOSS FROM OPERATIONS(2,646)(1.4)%(6,798)(5.2)%(9,360)(1.7)%(31,660)(8.7)%
Other income, netOther income, net18 — %34 — %157 — %335 0.1 %
Interest expenseInterest expense(515)(0.3)%(112)(0.1)%Interest expense(350)(0.2)%(143)(0.1)%(1,224)(0.2)%(697)(0.2)%
LOSS BEFORE INCOME TAXESLOSS BEFORE INCOME TAXES(10,505)(6.8)%(992)(0.7)%LOSS BEFORE INCOME TAXES(2,978)(1.5)%(6,907)(5.3)%(10,427)(1.9)%(32,022)(8.8)%
Income tax expense (benefit)(11,080)(7.1)%87 0.1 %
Benefit from income taxesBenefit from income taxes(576)(0.3)%(797)(0.6)%(10,665)(2.0)%(6,802)(1.9)%
NET INCOME (LOSS)NET INCOME (LOSS)575 0.4 %(1,079)(0.8)%NET INCOME (LOSS)(2,402)(1.2)%(6,110)(4.7)%238 — %(25,220)(6.9)%
Less: net loss attributable to non-controlling interests(734)(0.5)%(119)(0.1)%
Less: Net loss attributable to non-controlling interestsLess: Net loss attributable to non-controlling interests(224)(0.1)%(551)(0.4)%(837)(0.2)%(2,490)(0.7)%
NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.$1,309 0.8 %$(960)(0.7)%NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC.$(2,178)(1.1)%$(5,559)(4.3)%$1,075 0.2 %$(22,730)(6.2)%
(1)As a percentage of Shack sales.
Shack Sales
Shack sales represent the aggregate sales of food, beverages and Shake Shack branded merchandise at our domestic Company-operated Shacks. Shack sales in any period are directly influenced by the number of operating weeks in such period, the number of open Shacks and same-Shack sales. Same-Shack sales means, for any reporting period, sales performance at ourfor the comparable Shack base, which we define as the number of domestic Company-operated domestic Shacks that have been open for at least 24 months.months or longer.
Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Shack sales$186,972 $126,288 $519,110 $353,855 
Percentage of Total revenue96.4 %96.8 %96.7 %96.9 %
Dollar change compared to prior year$60,684 $165,255 
Percentage change compared to prior year48.1 %46.7 %
The increases in Shack sales for the thirteen and thirty-nine weeks ended September 29, 2021 were primarily due to the continued recovery from the COVID-19 pandemic, in addition to the opening of 30 net new domestic Company-operated Shacks between September 23, 2020 and September 29, 2021.
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Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Shack sales$150,668 $138,048 
Percentage of total revenue97.0 %96.4 %
Dollar change compared to prior year$12,620 
Percentage change compared to prior year9.1 %
Shack sales during the thirteen weeks ended March 31, 2021 increased 9.1% from the same prior-year period, primarily driven by the opening of 25 net new domestic Company-operated Shacks between March 25, 2020 and March 31, 2021, and to a lesser extent, an increase in same-Shack sales.

Same-Shack sales continued to improve across all regions, and increased 5.7% for the first quarter of 2021, compared to down 17.4% in the fourth quarter of 2020, with performance driven by increases in in-Shack dining in both urban and suburban Shacks, combined with high levels of digital sales retention. The increase in first quarter 2021 same-Shack sales was due to a price and sales mix increase of 18.0% — a combination of our end-of-year price increase in December, increased pricing on third-party delivery channels which rolled out over the early part of this fiscal year, and a higher number of items per check, particularly in our digital channels — partially offset by a 12.3% decrease in guest traffic. For the purpose of calculating same-Shack sales growth, Shack sales for 123 Shacks were included in the comparable Shack base as of the end of the first quarter of 2021 versus 90 Shacks for the first quarter of 2020.
Licensing Revenue
Licensing revenue is comprised of license fees, opening fees for certain licensed Shacks and territory fees. License fees are calculated as a percentage of sales and territory fees are payments for the exclusive right to develop Shacks in a specific geographic area.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Licensing revenueLicensing revenue$4,614 $5,122 Licensing revenue$6,923 $4,113 $17,527 $11,502 
Percentage of total revenue3.0 %3.6 %Percentage of Total revenue3.6 %3.2 %3.3 %3.1 %
Dollar change compared to prior year$(508)Dollar change compared to prior year$2,810 $6,025 
Percentage change compared to prior year(9.9)%Percentage change compared to prior year68.3 %52.4 %
LicensedThe increases in Licensing revenue for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 decreased 9.9% to $4.6 million versus the same prior-year period,were primarily due to reduced salesincreased strength across regions where COVID-19 related to the COVID-19 pandemic, partially offset byrestrictions have been eased as well as a net increase of 922 licensed Shacks that opened between March 25,September 23, 2020 and March 31,September 29, 2021. Although Licensing revenue continued to improve, COVID-19 related challenges remain in various regions where our licensed Shacks operate. As of the end of the firstthird quarter 2021, 16seven licensed Shacks remainedwere temporarily closed primarily due to COVID. Through the first quarter of 2021, we did, however, see improvement in total weekly sales performance throughout the quarter, with sales recovery led by improvements in both our international and domestic licensed Shacks, particularly in airports which are experiencing increases in TSA flight traffic.COVID-19 pandemic.
Food and Paper Costs
Food and paper costs include the direct costs associated with food, beverage and packaging of our menu items. The components of Foodfood and paper costs are variable by nature, changechanging with sales volume, and are impacted by menu mix and fluctuations in commodity costs, as well as geographic scale and proximity.
Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Food and paper costs$57,925 $37,903 $157,472 $107,494 
Percentage of Shack sales31.0 %30.0 %30.3 %30.4 %
Dollar change compared to prior year$20,022 $49,978 
Percentage change compared to prior year52.8 %46.5 %
The increases in Food and paper costs for the thirteen and thirty-nine weeks ended September 29, 2021 were primarily due to increased sales volume associated with continued recovery from the COVID-19 pandemic and the opening of 30 net new domestic Company-operated Shacks between September 23, 2020 and September 29, 2021.
As a percentage of Shack sales, the increase in Food and paper costs for the thirteen weeks ended September 29, 2021 was primarily driven by increases in chicken and beef prices, partially offset by decreases in paper and packaging costs compared to the same period last year. The decreases in paper and packaging costs were due to all orders being packaged as 'to go' orders in the third quarter last year. As a percentage of Shack sales, Food and paper costs for the thirty-nine weeks ended September 29, 2021 was relatively flat primarily due to elevated beef and chicken prices partially offset by a decrease in paper and packaging costs compared to the same period last year.
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Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Food and paper costs$44,630 $39,564 
Percentage of Shack sales29.6 %28.7 %
Dollar change compared to prior year$5,066 
Percentage change compared to prior year12.8 %
The increase in Food and paper costs for the thirteen weeks ended March 31, 2021 was primarily due to the opening of 25 net new domestic Company-operated Shacks between March 25, 2020 and March 31, 2021, as well as increased paper and packaging costs and beef costs.
Labor and Related Expenses
Labor and related expenses include domestic Company-operated Shack-level hourly and management wages, bonuses, payroll taxes, equity-based compensation, workers’workers' compensation expense and medical benefits. As we expect with other variable expense items, we expect labor costs toshould grow as our Shack sales grow. Factors that influence labor costs include minimum wage and payroll tax legislation, health care costs, size and location of the Shack and the performance of our domestic Company-operated Shacks.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Labor and related expensesLabor and related expenses$46,382 $41,766 Labor and related expenses$58,208 $37,898 $157,221 $110,597 
Percentage of Shack sales30.8 %30.3 %Percentage of Shack sales31.1 %30.0 %30.3 %31.3 %
Dollar change compared to prior year$4,616 Dollar change compared to prior year$20,310 $46,624 
Percentage change compared to prior year11.1 %Percentage change compared to prior year53.6 %42.2 %
The increaseincreases in Labor and related expenses for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere primarily due to our annual wage rate increase, higher payroll taxes atrecent investments in wages and bonuses for the state level, and a more normalized level of performance related bonuses, including the impact ofShack teams, as well as the opening of 2530 net new domestic Company-operated Shacks between March 25,September 23, 2020 and March 31,September 29, 2021.
As a percentage of Shack sales, the increase in Labor and related expenses for the thirteen weeks ended March 31,September 29, 2021 was primarily due to our annual wage increase, a more normalized level of performance related bonuses and new Shack openings at higher levels of labor,team investments as noted above, partially offset by an increasegreater sales leverage associated with the recovery from COVID-19. As a percentage of Shack sales, the decrease in labor productivity at existing Shacks.Labor and related expenses for the thirty-nine weeks ended September 29, 2021 was primarily due to greater sales leverage associated with the recovery from COVID-19, partially offset by increased headcount as our Shacks aim to return to pre-pandemic operating levels.
Other Operating Expenses
Other operating expenses consist of delivery commissions, Shack-level marketing expenses, repairs and maintenance, utilities and other operating expenses incidental to operating our domestic Company-operated Shacks, such as delivery commissions,non-perishable supplies, credit card fees non-perishable supplies, and businessproperty insurance.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Other operating expensesOther operating expenses$23,144 $17,779 Other operating expenses$26,613 $18,743 $74,032 $50,826 
Percentage of Shack sales15.4 %12.9 %Percentage of Shack sales14.2 %14.8 %14.3 %14.4 %
Dollar change compared to prior year$5,365 Dollar change compared to prior year$7,870 $23,206 
Percentage change compared to prior year30.2 %Percentage change compared to prior year42.0 %45.7 %
The increaseincreases in Other operating expenses for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere primarily due to higher delivery and transaction costs associated with higher digital sales, facilities costs associated with the re-opening of dining rooms, and the opening of 2530 net new domestic Company-operated Shacks between March 25,September 23, 2020 and March 31, 2021 and higher delivery commission as a result of digital growth.
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September 29, 2021.
As a percentage of Shack sales, the increasedecreases in Other operating expenses for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere primarily due to sales leverage associated with the recovery from COVID-19 partially offset by higher delivery commissionsfacilities costs as a result of digital growth.noted above.
Occupancy and Related Expenses
Occupancy and related expenses consist of Shack-level occupancy expenses (including rent, common area expenses and certain local taxes), and exclude occupancy expenses associated with unopened Shacks, which are recorded separately in Pre-openingpre-opening costs.
Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Occupancy and related expenses$13,911 $12,558 
Percentage of Shack sales9.2 %9.1 %
Dollar change compared to prior year$1,353 
Percentage change compared to prior year10.8 %
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Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Occupancy and related expenses$14,640 $13,093 $43,427 $37,974 
Percentage of Shack sales7.8 %10.4 %8.4 %10.7 %
Dollar change compared to prior year$1,547 $5,453 
Percentage change compared to prior year11.8 %14.4 %
The increaseincreases in Occupancy and related expenses for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere primarily due to the opening of 2530 net new domestic Company-operated Shacks between March 25,September 23, 2020 and March 31,September 29, 2021.
As a percentage of Shack sales, the decreases in Occupancy and related expenses for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 was relatively consistentwere primarily due to sales leverage associated with the same-prior year period, and continues to be impacted by sales deleverage, particularly in our high-volume urban Shacks.continued recovery from the COVID-19 pandemic.
General and Administrative Expenses
General and administrative expenses consist of costs associated with home officecorporate and administrative functions that support Shack development and operations, as well as equity-based compensation expense.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
General and administrative expensesGeneral and administrative expenses$19,565 $16,191 General and administrative expenses$20,504 $14,962 $60,435 $45,170 
Percentage of total revenue12.6 %11.3 %Percentage of Total revenue10.6 %11.5 %11.3 %12.4 %
Dollar change compared to prior year$3,374 Dollar change compared to prior year$5,542 $15,265 
Percentage change compared to prior year20.8 %Percentage change compared to prior year37.0 %33.8 %
The increaseincreases in General and administrative expenses for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere primarily due to continued investment across the business, including an increaseinvestments in headcountwages and other team costs to support the strategic growth plan, and increasedcontinued recovery from the COVID-19 pandemic, as well as investments in marketing and our digitaltechnology initiatives.
As a percentage of totalTotal revenue, the increasedecreases in General and administrative expenses for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere primarily due primarily to drivers described above.sales leverage associated with the continued recovery from the COVID-19 pandemic.
Depreciation and Amortization Expense
Depreciation and amortization expense primarily consists of the depreciation of fixed assets, including leasehold improvements and equipment, as well as financing equipment lease assets.equipment.
Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Depreciation and amortization expense$15,183 $12,376 $43,381 $36,233 
Percentage of Total revenue7.8 %9.5 %8.1 %9.9 %
Dollar change compared to prior year$2,807 $7,148 
Percentage change compared to prior year22.7 %19.7 %
The increases in Depreciation and amortization expense for the thirteen and thirty-nine weeks ended September 29, 2021 were predominantly due to incremental depreciation of capital expenditures related to the opening of 30 net new domestic Company-operated Shacks between September 23, 2020 and September 29, 2021.
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Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Depreciation and amortization expense$13,726 $11,768 
Percentage of total revenue8.8 %8.2 %
Dollar change compared to prior year$1,958 
Percentage change compared to prior year16.6 %
The increaseAs a percentage of Total revenue, the decreases in Depreciation and amortization expense for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere primarily due to incremental depreciation of capital expenditures related tosales leverage associated with the opening of 25 net new domestic Company-operated Shacks between March 25, 2020 and March 31, 2021 and increased technology investments to support our digital initiatives.
As a percentage of total revenue,recovery from the increase in Depreciation and amortization expense for the thirteen weeks ended March 31, 2021 was primarily due to the aforementioned items.COVID-19 pandemic.
Pre-Opening Costs
Pre-opening costs consist primarily of legal fees, rent, managers' salaries, training costs, employee payroll and related expenses, costs to relocate and compensate Shack management teams prior to an opening and wages, travel and lodging costs for our opening training team and other supporting team members. All such costs incurred prior to the opening of a domestic Company-operated Shack are expensed in the period in which the expense was incurred. Pre-opening costs can fluctuate significantly from period to period, based on the number and timing of domestic Company-operated Shack openings and the specific pre-opening costs incurred for each domestic Company-operated Shack. Additionally, domestic Company-operated Shack openings in new geographic market areas may initially experience higher pre-opening costs than our established geographic market areas, such as the New York City metropolitan area, where we have greater economies of scale and incur lower travel and lodging costs for our training team.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Pre-opening costsPre-opening costs$3,576 $2,243 Pre-opening costs$2,933 $1,822 $8,767 $5,799 
Percentage of total revenue2.3 %1.6 %Percentage of Total revenue1.5 %1.4 %1.6 %1.6 %
Dollar change compared to prior year$1,333 Dollar change compared to prior year$1,111 $2,968 
Percentage change compared to prior year59.4 %Percentage change compared to prior year61.0 %51.2 %
The increaseincreases in Pre-opening costs for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 waswere due to the increased fiscal 2021 development pipeline forhigher number of new domestic Company-operated Shacks includingopened during the current period compared to the prior-year period, as well as those expected to open in the first half of the fiscal year.open.
Impairment and Loss on Disposal of Assets
Impairment and loss on disposal of assets include impairment charges related to our long-lived assets, which includes property and equipment, as well as operating and finance lease assets. Additionally, Impairmentimpairment and loss on disposal of assets includes the net book value of assets that have been retired and consists primarily of furniture, equipment and fixtures that were replaced in the normal course of business.
Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Impairment and loss on disposal of assets$535 $402 $1,262 $2,924 
Percentage of Total revenue0.3 %0.3 %0.2 %0.8 %
Dollar change compared to prior year$133 $(1,662)
Percentage change compared to prior year33.1 %(56.8)%
The increase in Impairment and loss on disposal of assets for the thirteen weeks ended September 29, 2021 was primarily due to the number of Shacks maturing in our base. For the thirty-nine weeks ended September 29, 2021, the decrease was primarily due to an impairment charge of $1.1 million recorded in the first quarter of fiscal 2020.
Other Income, Net
Other income, net consists of interest income, dividend income and net unrealized and realized gains and losses from marketable securities.
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Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Impairment and loss on disposal of assets$369 $2,088 
Other income, netOther income, net$18 $34 $157 $335 
Percentage of total revenue0.2 %1.5 %Percentage of Total revenue— %— %— %0.1 %
Dollar change compared to prior year$(1,719)Dollar change compared to prior year$(16)$(178)
Percentage change compared to prior year(82.3)%Percentage change compared to prior year(47.1)%(53.1)%
The decrease in Impairment and loss on disposal of assets for the thirteen weeks ended March 31, 2021 was primarily due to asset impairment charges of $1.1 million in the first quarter of 2020 related to the impairment of one Shack. In addition, loss on disposal of assets decreased due to several Shack renovations in fiscal 2020.
Other Income (Expense), Net
Other income, (expense), net consists of adjustments to liabilities under our Tax Receivable Agreement, dividend income, interest income and net unrealized and realized gains and losses from the sale of marketable securities.
Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Other income (expense), net$31 $(93)
Percentage of total revenue— %(0.1)%
Dollar change compared to prior year$124 
Percentage change compared to prior year(133.3)%
The increase in Other income (expense), net for the thirteen weeks ended March 31,September 29, 2021 was primarily due to a decline in unrealized losses related to our investments in marketable securities partially offset bymore than offsetting the increase in dividend income for the period. The decrease in Other income, net for the thirty-nine weeks ended September 29, 2021 was primarily due to an increase in unrealized losses and a decrease in dividend income.income related to our investments in marketable securities.
Interest Expense
Interest expense primarilygenerally consists of interest and fees on the current portion of our Revolving Credit Facility,liabilities under the Tax Receivable Agreement, imputed interest related to our financing equipment leases, amortization of deferred financing costs, interest and interestfees on the current portionour Revolving Credit Facility and amortization of our liabilities under the Tax Receivable Agreement.debt issuance costs.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Interest expenseInterest expense$(515)$(112)Interest expense$(350)$(143)$(1,224)$(697)
Percentage of total revenue(0.3)%(0.1)%Percentage of Total revenue(0.2)%(0.1)%(0.2)%(0.2)%
Dollar change compared to prior year$(403)Dollar change compared to prior year$(207)$(527)
Percentage change compared to prior year359.8 %Percentage change compared to prior year144.8 %75.6 %
The increase in Interest expense for the thirteen weeks ended September 29, 2021 was primarily due to amortization expense related to the issuance of Convertible Notes in March 2021.
The increase in Interest expense for the thirty-nine weeks ended September 29, 2021 was primarily due to amortization expense related to the issuance of Convertible Notes in March 2021 as well as the write-off of previously capitalized costs of $0.3 million associated with the amendment of our Revolving Credit Facility in March 2021. Refer to Note 6, Debt, in the accompanying Condensed Consolidated Financial Statements, for further details.additional information.
Benefit from Income Tax Expense (Benefit)Taxes
We are the sole managing member of SSE Holdings and, as a result, consolidateconsolidates the financial results of SSE Holdings. SSE Holdings is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, SSE Holdings is not subject to U.S. federal and certain state and local income taxes. Any taxable income or loss generated by SSE Holdings is passed through to and included in the taxable income or loss of its members, including us, on a pro rata basis. We are subject to U.S. federal income taxes, in addition to state and local income taxes with respect to our allocable share of any taxable income or loss of SSE Holdings, as well as any stand-alone income or loss generated by Shake Shack Inc.us. We are also subject to withholding taxes in foreign jurisdictions.
Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Benefit from income taxes$(576)$(797)$(10,665)$(6,802)
Percentage of Total revenue(0.3)%(0.6)%(2.0)%(1.9)%
Dollar change compared to prior year$221 $(3,863)
Percentage change compared to prior year(27.7)%56.8 %
Our effective income tax rates for the thirteen weeks ended September 29, 2021 and September 23, 2020 were 19.3% and 11.5%, respectively. The increase was primarily driven by higher tax credits and a decrease in pre-tax loss. Additionally, an increase in our ownership interest in SSE Holdings increases our share of the taxable income (loss) of SSE Holdings. Our
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Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Income tax expense (benefit)$(11,080)$87 
Percentage of total revenue(7.1)%0.1 %
Dollar change compared to prior year$(11,167)
Percentage change compared to prior year(12,835.6)%
weighted-average ownership interest in SSE Holdings was 93.1% and 92.5% for the thirteen weeks ended September 29, 2021 and September 23, 2020, respectively.
Our effective income tax rates for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020 were 105.5%102.3% and (8.8)%21.2%, respectively. The increase was primarily driven by lowera decrease in the pre-tax book income resulting in a loss, causing tax credits and windfall tax benefits related to equity-based compensation to have an increasing effect on the tax rate, as well as a reduction of a valuation allowance. Additionally, an increase in our ownership interest in SSE Holdings increases our share of the taxable income (loss) of SSE Holdings. Our weighted-average ownership interest in SSE Holdings was 93.0% and 91.6%92.1% for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020, respectively.
Net LossIncome (Loss) Attributable to Non-Controlling Interests
We are the sole managing member of SSE Holdings and have the sole voting power in, and control the management of, SSE Holdings. Accordingly, we consolidate the financial results of SSE Holdings and report a non-controlling interest on our Condensed Consolidated Statements of Income (Loss), representing the portion of Net income (loss)net loss attributable to the other members of SSE Holdings. The Third Amended and Restated Limited Liability Company Agreement of SSE Holdings 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. The weighted average ownership percentages for the applicable reporting periods are used to attribute net income (loss) and other comprehensive income (loss) to Shake Shack Inc. and the non-controlling interest holders.
Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)(dollar amounts in thousands)March 31
2021
March 25
2020
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Net loss attributable to non-controlling interestsNet loss attributable to non-controlling interests$(734)$(119)Net loss attributable to non-controlling interests$(224)$(551)$(837)$(2,490)
Percentage of total revenue(0.5)%(0.1)%Percentage of Total revenue(0.1)%(0.4)%(0.2)%(0.7)%
Dollar change compared to prior year$(615)Dollar change compared to prior year$327 $1,653 
Percentage change compared to prior year516.8 %Percentage change compared to prior year(59.3)%(66.4)%
The increaseimprovement in Net loss attributable to non-controlling interests for the thirteen weeks ended March 31,September 29, 2021 was primarily due to an increaseimprovement in net loss for SSE Holdingsresults compared to the same period last year, partially offset by a decrease in the non-controlling interest holders' weighted average ownership, which was 6.9% and 7.5% for the thirteen weeks ended September 29, 2021 and September 23, 2020, respectively.
The improvement in Net loss attributable to non-controlling interests for the thirty-nine weeks ended September 29, 2021 was primarily due to an improvement in net results compared to the same period last year, partially offset by a decrease in the non-controlling interest holders' weighted average ownership, which was 7.0% and 8.4%7.9% for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and March 25,September 23, 2020, respectively.
NON-GAAP FINANCIAL MEASURES
To supplement the condensed consolidated financial statements, which are prepared and presented in accordance with U.S. GAAP,accounting principles generally accepted in the United States of America ("GAAP"), we use the following non-GAAP financial measures: Shack-level operating profit, Shack-level operating profit margin, EBITDA, adjusted EBITDA, adjusted EBITDA margin, adjusted pro forma net income (loss) and adjusted pro forma earnings (loss) per fully exchanged and diluted share (collectively the "non-GAAP financial measures").

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Shack-Level Operating Profit
Shack-level operating profit is defined as Shack sales less Shack-level operating expenses including Food and paper costs, Labor and related expenses, Other operating expenses and Occupancy and related expenses.
How This Measure Is Useful
When used in conjunction with GAAP financial measures, Shack-level operating profit and Shack-level operating profit margin are supplemental measures of operating performance that the Company believeswe believe are useful measures to evaluate the performance and profitability of itsour Shacks. Additionally, Shack-level operating profit and Shack-level operating profit margin are key metrics used internally by management to develop our internal budgets and forecasts, as well as assess the performance of itsour Shacks relative to budget and against prior periods. It is also used to evaluate employee compensation as it serves as a metric in certain performance-based employee bonus arrangements. The Company believesWe believe presentation of Shack-level operating profit and Shack-level operating profit margin provides investors with a supplemental view of itsour operating performance that can provide meaningful insights to the underlying operating performance of the Shacks, as these measures depict the operating results that are directly impacted by the Shacks and exclude items that may not be indicative of, or are unrelated to, the ongoing operations of the Shacks. It may also assist investors to evaluate the Company's performance relative to peers of various sizes and maturities and provides greater transparency with respect to how management evaluates theour business, as well as the financial and operational decision-making.
Limitations of the Usefulness of this Measure
Shack-level operating profit and Shack-level operating profit margin may differ from similarly titled measures used by other companies due to different methods of calculation. Presentation of Shack-level operating profit and Shack-level operating profit margin is not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. Shack-level operating profit excludes certain costs, such as General and administrative expenses and Pre-opening costs, which are considered normal, recurring cash operating expenses and are essential to support the operation and development of the Company's Shacks. Therefore, this measure may not provide a complete understanding of the Company's operating results as a whole and Shack-level operating profit and Shack-level operating profit margin should be reviewed in conjunction with the Company's GAAP financial results. A reconciliation of Shack-level operating profit to Operating loss, the most directly comparable GAAP financial measure, is set forth below.

Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Loss from Operations$(2,646)$(6,798)$(9,360)$(31,660)
Less:
Licensing revenue6,923 4,113 17,527 11,502 
Add:
General and administrative expenses20,504 14,962 60,435 45,170 
Depreciation and amortization expense15,183 12,376 43,381 36,233 
Pre-opening costs2,933 1,822 8,767 5,799 
Impairment and loss on disposal of assets(1)
535 402 1,262 2,924 
Shack-level operating profit$29,586 $18,651 $86,958 $46,964 
Total revenue$193,895 $130,401 $536,637 $365,357 
Less: Licensing revenue6,923 4,113 17,527 11,502 
Shack sales$186,972 $126,288 $519,110 $353,855 
Shack-level operating profit margin(2)
15.8 %14.8 %16.8 %13.3 %
Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Operating loss$(10,021)$(787)
Less:
Licensing revenue4,614 5,122 
Add:
General and administrative expenses19,565 16,191 
Depreciation and amortization expense13,726 11,768 
Pre-opening costs3,576 2,243 
Impairment and loss on disposal of assets(1)
369 2,088 
Shack-level operating profit$22,601 $26,381 
Total revenue$155,282 $143,170 
Less: licensing revenue4,614 5,122 
Shack sales$150,668 $138,048 
Shack-level operating profit margin(2)
15.0 %19.1 %
(1)For the thirteenthirty-nine weeks ended March 25,September 23, 2020, amount includes a non-cash impairment charge of $1.1 million related to one Shack.
(2)As a percentage of Shack sales.
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EBITDA and Adjusted EBITDA
EBITDA is defined as Net income (loss) before interest expense (net of interest income), Income tax expense (benefit) and Depreciation and amortization expense. Adjusted EBITDA is defined as EBITDA (as defined above) excluding equity-based compensation expense, deferred lease cost,costs, Impairment and loss on the disposal of assets, amortization of cloud-based software implementation costs, as well as certain non-recurring items that the Company doeswe do not believe directly reflect itsthe core operations and may not be indicative of the Company's recurring business operations.
How These Measures Are Useful
When used in conjunction with GAAP financial measures, EBITDA and adjusted EBITDA are supplemental measures of operating performance that the Company believeswe believe are useful measures to facilitate comparisons to historical performance and competitors' operating results. Adjusted EBITDA is a key metric used internally by management to develop internal budgets and forecasts and also serves as a metric in itsour performance-based equity incentive programs and certain bonus arrangements. The Company believesWe believe presentation of EBITDA and adjusted EBITDA provides investors with a supplemental view of the Company'sour operating performance that facilitates analysis and comparisons of its ongoing business operations because they exclude items that may not be indicative of the Company's ongoing operating performance.
Limitations of the Usefulness of These Measures
EBITDA and adjusted EBITDA may differ from similarly titled measures used by other companies due to different methods of calculation. Presentation of EBITDA and adjusted EBITDA is not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. EBITDA and adjusted EBITDA exclude certain normal recurring expenses. Therefore, these measures may not provide a complete understanding of the Company'sour performance and should be reviewed in conjunction with the GAAP financial measures. A reconciliation of EBITDA and adjusted EBITDA to Net income (loss), the most directly comparable GAAP measure, is as follows.
Thirteen Weeks Ended
(dollar amounts in thousands)March 31
2021
March 25
2020
Net income (loss)$575 $(1,079)
Depreciation and amortization expense13,726 11,768 
Interest expense, net515 112 
Income tax expense (benefit)(11,080)87 
EBITDA$3,736 $10,888 
Equity-based compensation1,681 1,300 
Amortization of cloud-based software implementation costs(1)
313 260 
Deferred lease costs(2)
204 (330)
Impairment and loss on disposal of assets(3)
369 2,088 
Debt offering related costs(4)
236 — 
Legal settlement(5)
595 — 
Executive transition costs(6)
— 34 
Project Concrete(7)
— (261)
Other(8)
— 285 
ADJUSTED EBITDA$7,134 $14,264 
Adjusted EBITDA margin(9)
4.6 %10.0 %
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Thirteen Weeks EndedThirty-Nine Weeks Ended
(dollar amounts in thousands)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Net income (loss)$(2,402)$(6,110)$238 $(25,220)
Depreciation and amortization expense15,183 12,376 43,381 36,233 
Interest expense, net350 143 1,224 697 
Benefit from income taxes(576)(797)(10,665)(6,802)
EBITDA12,555 5,612 34,178 4,908 
Equity-based compensation2,324 1,339 5,963 4,058 
Amortization of cloud-based software implementation costs(1)
308 458 935 1,086 
Deferred lease costs(2)
108 258 237 407 
Impairment and loss on disposal of assets(3)
535 402 1,262 2,924 
Debt offering related costs(4)
— — 236 — 
Legal settlement(5)
— — 619 — 
Executive transition costs(6)
— 82 179 150 
Project Concrete(7)
— — (229)
Other(8)
— — — 285 
Adjusted EBITDA$15,830 $8,159 $43,609 $13,589 
Adjusted EBITDA margin(9)
8.2 %6.3 %8.1 %3.7 %
(1)Represents amortization of capitalized implementation costs related to cloud-based software arrangements that are included within General and administrative expenses.
(2)Reflects the extent to which lease expense is greater than or less than contractual fixed base rent.
(3)Includes losses on disposals of property and equipment in the normal course of business. For the thirteenthirty-nine weeks ended March 25,September 23, 2020, this amount includes a non-cash impairment charge of $1.1 million related to one Shack.
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(4)    Costs incurred in connection with the Company’s Convertible Notes, issued in March 2021, including consulting and advisory fees. Refer to Note 6, Debt, in the accompanying Condensed Consolidated Financial Statements, for further details.additional information.
(5)Expense incurred to establish an accrual related to the settlement of a legal matter. SeeRefer to Note 13, Commitments and Contingencies, in the accompanying Condensed Consolidated Financial Statements, for further details.additional information.
(6)Represents fees paid in connection with the search and hiring of certain executive and key management positions.
(7)Represents consulting and advisory fees related to the Company's enterprise-wide system upgrade initiative called Project Concrete.
(8)Represents incremental expenses incurred related to an inventory adjustment and certain employee-related expenses.
(9)Calculated as a percentage of totalTotal revenue, which was $155.3 million$193,895 and $143.2 million$536,637 for the thirteen and thirty-nine weeks ended March 31,September 29, 2021, respectively, and March 25,$130,401 and $365,357 for the thirteen and thirty-nine weeks ended September 23, 2020, respectively.

Adjusted Pro Forma Net Income (Loss) and Adjusted Pro Forma Earnings (Loss) Per Fully Exchanged and Diluted Share
Adjusted pro forma net income (loss) represents netNet income (loss) attributable to Shake Shack Inc. assuming the full exchange of all outstanding SSE Holdings, LLC membership interests ("LLC Interests") for shares of Class A common stock, adjusted for certain non-recurring items that we don'tdo not believe are directly reflectrelated to our core operations and may not be indicative of our recurring business operations. Adjusted pro forma earnings (loss) per fully exchanged and diluted share is calculated by dividing adjusted pro forma net income (loss) by the weighted-average shares of Class A common stock outstanding, assuming the full exchange of all outstanding LLC Interests, after giving effect to anythe dilutive securities such aseffect of outstanding equity-based awards.
How These Measures Are Useful
When used in conjunction with GAAP financial measures, adjusted pro forma net income (loss) and adjusted pro forma earnings (loss) per fully exchanged and diluted share are supplemental measures of operating performance that we believe are useful measures to evaluate our performance period over period and relative to our competitors. By assuming the full exchange of all outstanding LLC Interests, we believe these measures facilitate comparisons with other companies that have different organizational and tax structures, as well as comparisons period over period because it eliminates the effect of any changes in netNet income (loss) attributable to Shake Shack Inc. driven by increases in our ownership of SSE Holdings, which are unrelated to
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our operating performance, and excludes items that are non-recurring or may not be indicative of our ongoing operating performance.
Limitations of the Usefulness of These Measures
Adjusted pro forma net income (loss) and adjusted pro forma earnings (loss) per fully exchanged and diluted share are not necessarily comparable tomay differ from similarly titled measures used by other companies due to different methods of calculation. Presentation of adjusted pro forma net income (loss) and adjusted pro forma earnings (loss) per fully exchanged and diluted share should not be considered alternatives to netNet income (loss) and earnings (loss) per share, as determined under GAAP. While these measures are useful in evaluating our performance, it does not account for the earnings attributable to the non-controlling interest holders and therefore does not provide a complete understanding of the netNet income (loss) attributable to Shake Shack Inc. Adjusted pro forma net income (loss) and adjusted pro forma earnings (loss) per fully exchanged and diluted share should be evaluated in conjunction with our GAAP financial results. A reconciliation of adjusted pro forma net income (loss) to netNet income (loss) attributable to Shake Shack Inc., the most directly comparable GAAP measure, and the computation of adjusted pro forma earnings (loss) per fully exchanged and diluted share are set forth below.
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Thirteen Weeks EndedThirteen Weeks EndedThirty-Nine Weeks Ended
(in thousands, except per share amounts)(in thousands, except per share amounts)March 31
2021
March 25
2020
(in thousands, except per share amounts)September 29
2021
September 23
2020
September 29
2021
September 23
2020
Numerator:Numerator:Numerator:
Net income (loss) attributable to Shake Shack Inc.$(2,178)$(5,559)$1,075 $(22,730)
Adjustments:
Reallocation of Net loss attributable to non-controlling interests from the assumed exchange of LLC Interests(1)
(224)(551)(837)(2,490)
Net income (loss) attributable to Shake Shack Inc.$1,309 $(960)
Executive transition costs(2)
— 82 179 150 
Adjustments:
Project Concrete(3)
— — (229)
Reallocation of net loss attributable to non-controlling interests from the assumed exchange of LLC Interests(1)
(734)(119)
Executive transition costs(2)
— 34 
Project Concrete(3)
— (261)
Legal settlement(4)
— — 619 — 
Debt offering related costs(5)
— — 236 — 
Legal settlement(4)
595 — 
Revolving Credit Facility amendments related costs(6)
— — 323 — 
Debt offering related costs(5)
236 — 
Revolving Credit Facility amendment-related costs(6)
323 — 
Other(7)
— — — 285 
Income tax benefit (7)
24 1,819 
Impact to income tax benefit(8)
392 1,608 528 3,141 
Other(8)
— 285 Adjusted pro forma net income (loss)$(2,010)$(4,412)$2,123 $(21,873)
Adjusted pro forma net income$1,753 $798 
Denominator:Denominator:Denominator:
Weighted-average shares of Class A common stock outstanding—diluted42,789 34,444 Weighted-average shares of Class A common stock outstanding—diluted39,137 38,251 43,448 36,668 
Adjustments:Adjustments:
Assumed exchange of LLC Interests for shares of Class A common stock(1)
— 3,144 
Assumed exchange of LLC Interests for shares of Class A common stock(1)
2,922 3,114 — 3,125 
Dilutive effect of stock options— 704 Adjusted pro forma fully exchanged weighted-average shares of Class A common stock outstanding—diluted42,059 41,365 43,448 39,793 
Adjusted pro forma fully exchanged weighted-average shares of Class A common stock outstanding—diluted42,789 38,292 
Adjusted pro forma earnings per fully exchanged share—diluted$0.04 $0.02 
Adjusted pro forma earnings (loss) per fully exchanged share—dilutedAdjusted pro forma earnings (loss) per fully exchanged share—diluted$(0.05)$(0.11)$0.05 $(0.55)
Thirteen Weeks Ended
March 31
2021
March 25
2020
Earnings (loss) per share of Class A common stock - diluted$0.01 $(0.03)
Assumed exchange of LLC Interests for shares of Class A common stock(1)
— — 
Non-GAAP adjustments(9)
0.03 0.05 
Adjusted pro forma earnings per fully exchanged share—diluted$0.04 $0.02 

Thirteen Weeks EndedThirty-Nine Weeks Ended
September 29
2021
September 23
2020
September 29
2021
September 23
2020
Earnings (loss) per share of Class A common stock—diluted$(0.06)$(0.15)$0.01 $(0.62)
Assumed exchange of LLC Interests for shares of Class A common stock(1)
— — — (0.01)
Non-GAAP adjustments(9)
0.01 0.04 0.04 0.08 
Adjusted pro forma earnings (loss) per fully exchanged share—diluted$(0.05)$(0.11)$0.05 $(0.55)
(1)Assumes the exchange of all outstanding LLC Interests for shares of Class A common stock, resulting in the elimination of the non-controlling interest and recognition of the net lossincome (loss) attributable to non-controlling interests. Refer to Note 11, Earnings (Loss) per Share, in the accompanying Condensed Consolidated Financial Statements, for additional information.
(2)Represents fees paidcosts incurred in connection with theour executive search, and hiring of certainincluding fees paid to an executive and key management positions.recruiting firm.
(3)Represents consulting and advisory fees related to the Company'sour enterprise-wide system upgrade initiative called Project Concrete.
(4)Expense incurred to establish an accrual related to the settlement of a legal matter. SeeRefer to Note 13, Commitments and Contingencies, in the accompanying Condensed Consolidated Financial Statements, for further details.additional information.
(5)Costs incurred in connection with the Company’s Convertible Notes, issued in March 2021, including consulting and advisory fees. Refer to Note 6, Debt, in the accompanying Condensed Consolidated Financial Statements, for further details.additional information.
(6)Expense incurred in connection with the Company's amendments on the Revolving Credit Facility, including the write-off of previously capitalized costs on the Revolving Credit Facility. Refer to Note 6, Debt, in the accompanying Condensed Consolidated Financial Statements, for further details.additional information.
(7)Represents incremental expenses incurred related to an inventory adjustment and certain employee-related expenses.
(8)Represents the tax effect of the aforementioned adjustments and pro forma adjustments to reflect corporate income taxes at assumed effective tax rates of 118.8%32.5% and 185.4%123.4% for the thirteen and thirty-nine weeks endedSeptember 29, 2021, respectively, and 35.3% and 31.3% for the thirteen and thirty-nine weeks ended March 31, 2021 and March 25,September 23, 2020, respectively. Amounts include provisions for U.S. federal income taxes, certain LLC entity-level taxes and foreign withholding taxes, assuming the highest statutory rates apportioned to each applicable state, local and foreign jurisdiction.
(8)    Represents incremental expenses incurred related to an inventory adjustment and certain employee-related expenses.
(9)Represents the per share impact of non-GAAP adjustments for each period. Refer to the reconciliation of Adjusted Pro Forma Net Income (Loss) above, for further details.additional information.
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LIQUIDITY AND CAPITAL RESOURCES
Sources and Uses of Cash
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Our primary sources of liquidity are cash from operations, cash and cash equivalents on hand, short-term investments and availability under our Revolving Credit Facility. In March 2021, we issued 0% Convertible Senior Notes of (“Convertible Debt,Notes”), and received $243.8 million of proceeds, net of discounts. Refer to Note 6, Debt, in the accompanying Condensed Consolidated Financial Statements, for further discussion.additional information.
As of March 31,September 29, 2021, we maintained a cashCash and cash equivalents balance of $375.0$321.4 million and a short-term investments balance of $40.9$80.1 million within Marketable securities.
On June 8, 2018,7, 2021, we filed a Registration Statement on Form S-3 with the SEC which permits us to issue a combination of securities described in the prospectus in one or more offerings from time to time. To date, we have not experienced difficulty accessing the capital markets; however, future volatility in the capital markets may affect our ability to access those markets or increase the costs associated with issuing debt or equity instruments.
Our primary requirements for liquidity are to fund our working capital needs, operating and finance lease obligations, capital expenditures and general corporate needs. Our requirements for working capital are generally 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 and digital infrastructure.
In addition, we are obligated to make payments to certain members of SSE Holdings under the Tax Receivable Agreement. As of March 31,September 29, 2021, such obligations totaled $234.0 million. Amounts payable under the Tax Receivable Agreement are contingent upon, among other things, (i) generation of future taxable income over the term of the Tax Receivable Agreement and (ii) future changes in tax laws. If we do not generate sufficient taxable income in the aggregate over the term of the Tax Receivable Agreement to utilize the tax benefits, then we would not be required to make the related TRA Payments. 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 flow 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.
In response to the uncertain market conditions resulting from the onset of the COVID-19 pandemic, we took the following actions in fiscal 2020.
On April 17, 2020, we announced an "at-the-market" equity offering program (the "ATM Program"), under which we may offer and sell shares of our Class A common stock having an aggregate price of up to $75.0 million from time to time. On April 21, 2020, we completed the sale of 233,467 shares of our Class A common stock pursuant to the ATM Program and received $9.8 million of proceeds, net of commissions. The proceeds were used to purchase newly-issued LLC Interests.
On April 21, 2020, we completed an underwritten offering of 3,416,070 shares of our Class A common stock, resulting in $135.9 million of proceeds, net of underwriting discounts and commissions. The proceeds were used to purchase newly-issued LLC Interests.
In May 2020, we entered into an amendment to our Revolving Credit Facility that provided for a number of enhanced modifications to reflect the current and ongoing impact from COVID-19. Our Revolving Credit Facility was further amended in March 2021, resulting in a modification of the applicable covenants and restrictions in the Credit Agreement to permit the incurrence of the Convertible Notes, including obligations and transactions in connection therewith. Refer to Note 6, Debt, in the accompanying condensed consolidated financial statements, for furtheradditional information.
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In March 2020, we drew down the full $50.0 million available under the Revolving Credit Facility to enhance liquidity and financial flexibility given the uncertain market conditions created by the COVID-19 pandemic. We repaid this amount in full, plus interest, in June 2020. As of March 31, 2021, we were in compliance with all covenants.
We believe our existing cash and marketable securities balances will be sufficient to fund our operating and finance lease obligations, capital expenditures, Tax Receivable Agreement obligations and working capital needs for at least the next 12 months and the foreseeable future.
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Summary of Cash Flows
The following table presents a summary of our cash flows from operating, investing and financing activities.
Thirteen Weeks EndedThirty-Nine Weeks Ended
(in thousands)(in thousands)March 31
2021
March 25
2020
(in thousands)September 29
2021
September 23
2020
Net cash provided by operating activitiesNet cash provided by operating activities$9,951 $7,484 Net cash provided by operating activities$43,740 $28,498 
Net cash provided by (used in) investing activities(27,228)649 
Net cash used in investing activitiesNet cash used in investing activities(112,169)(27,316)
Net cash provided by financing activitiesNet cash provided by financing activities245,403 42,574 Net cash provided by financing activities242,977 136,602 
Increase in cash and cash equivalents228,126 50,707 
Increase in Cash and cash equivalentsIncrease in Cash and cash equivalents174,548 137,784 
Cash and cash equivalents at beginning of periodCash and cash equivalents at beginning of period146,873 37,099 Cash and cash equivalents at beginning of period146,873 37,099 
Cash and cash equivalents at end of periodCash and cash equivalents at end of period$374,999 $87,806 Cash and cash equivalents at end of period$321,421 $174,883 
Operating Activities
For the thirteenthirty-nine weeks ended March 31,September 29, 2021 net cash provided by operating activities was $10.0$43.7 million compared to $7.5$28.5 million for the thirteenthirty-nine weeks ended March 25,September 23, 2020, an increase of $2.5$15.2 million. The increase was primarily due to an increase in net income of $25.4 million and the impact of non-cash charges of $11.9 million partially offset by a change in operating assets and liabilities of $3.9 million and an increase in net income of $1.7 million, partially offset by the impact of non-cash charges of $3.1$(22.1) million.
The $3.9$(22.1) million change in our operating asset and liability balances was primarily driven by Accrued wagesan increase in settlement of payables and related liabilities being a source of cash of $2.9 millionan increase in the first quarter of 2021, primarily driven by higher accruals associated with payroll costs, compared to a use of cash of $5.1 million in the first quarter of 2020; Accounts payable being a source of cash of $1.5 million in the first quarter of 2021, driven byand timing of rent payments, compared to a use of cash of $4.4 million in the first quarter of 2020; partially offset by Accrued expenses being a use of cash of $9.4 million in the first quarter of 2021, due to the timing of accruals associated with tax payments, compared to a use of cash of $6.3 million in the first quarter of 2020; Other long-term liabilities being a use of cash of $1.8 million in the first quarter of 2021, due to the timing of tax payments, compared to a source of cash of $0.5 million in the first quarter of 2020; and Accounts Receivable being a source of cash of $0.6 million in the first quarter of 2021, primarily driven by timing of cash receipts of open receivables, compared to a source of cash of $3.2 million in the first quarter of 2020.higher accrued wages.
Investing Activities
For the thirteenthirty-nine weeks ended March 31,September 29, 2021 net cash used in investing activities was $27.2$112.2 million compared to net cash provided by investing activities of $0.6$27.3 million for the thirteenthirty-nine weeks ended March 25,September 23, 2020, a decreasean increase of $27.8$84.9 million. This decreaseincrease was primarily due to a decrease of $20.0 million of proceeds from salesincreased purchases of marketable securities of $47.0 million and an increase of $4.0$21.9 million in capital expenditures to support our real estate development and digital initiatives and increased purchases of marketable securities of $3.9 million.initiatives.
Financing Activities
For the thirteenthirty-nine weeks ended March 31,September 29, 2021 net cash provided by financing activities was $245.4$243.0 million compared to $42.6$136.6 million for the thirteenthirty-nine weeks ended March 25,September 23, 2020, an increase of $202.8$106.4 million. This increase was primarily due to $243.8 million in net cash proceeds from the issuance of the Convertible Notes, net of discount, decreased payments made under the Tax Receivable Agreement, and increased proceeds from stock option exercises, partially offset by $50.0$145.7 million in grossnet cash proceeds from the drawdownissuance of funds from our Revolving Credit Facility inClass A common stock during the first quarter of 2020 — which was repaid in full, plus interest, in the second quarter ofthirty-nine weeks ended September 23, 2020.
Revolving Credit Facility
In August 2019, we entered into a Revolving Credit Facility, which permits borrowings up to $50.0 million, of which the entire amount is available immediately, with the ability to increase available borrowings up to an additional $100.0 million, to be made available subject to satisfaction of certain conditions. The Revolving Credit Facility also permits the issuance of letters of credit upon our request of up to $15.0 million.
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In March 2020, we drew down the full $50.0 million available under the Revolving Credit Facility to enhance liquidity and financial flexibility given the uncertain market conditions created by the COVID-19 pandemic. We repaid this amount in full, plus interest, in June 2020.
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In May 2020, we entered into a First Amendment, which, among other things, provided for modified financial covenant compliance requirements for a period of time. The First Amendment required us to maintain minimum liquidity of $25.0 million through July 1, 2021 and outstanding borrowings during the applicable period covered by the First Amendment bore interest at either: (i) LIBOR plus a percentage ranging from 1.0% to 2.5% or (ii) the base rate plus a percentage ranging from 0.0% to 1.5%, in each case depending on our net lease adjusted leverage ratio.
In March 2021, we entered into a Second Amendment. The Second Amendment modified the applicable covenants and restrictions in the Credit Agreement to permit the incurrence of the Convertible Notes (as defined below), including obligations and transactions in connection therewith. In addition, the Second Amendment, among other things, (i) extended the period applicable to the increased interest rate margin as set forth in the First Amendment; (ii) shortened the maturity date of the Revolving Credit Facility from August 2024 to September 2022 and (iii) added mechanics relating to the transition from the use of LIBOR to SOFR upon the discontinuance or unavailability of LIBOR.
Subsequently, and also in March 2021, we entered into a Third Amendment with JPMorgan Chase Bank, N.A. (as successor agent to Wells Fargo Bank, National Association), as administrative agent, and the lenders party thereto. In addition, in March 2021, Wells Fargo Bank resigned as administrative agent under the Revolving Credit Facility and assigned its commitments thereunder to JPMorgan Bank, N.A. The Third Amendment appoints JPMorgan Bank, N.A. as administrative agent under the Revolving Credit Facility. In addition, the Third Amendment, among other things, extends the maturity date of the Revolving Credit Facility from September 2022 to March 2026. As of March 31,September 29, 2021 and December 30, 2020, no amounts were outstanding under the Revolving Credit Facility.
The obligations under the Revolving Credit Facility are secured by a first-priority security interest in substantially all of the assets of SSE Holdings and the guarantors. The obligations under the Revolving Credit Facility are guaranteed by each of SSE Holdings' direct and indirect subsidiaries (with certain exceptions).
The Revolving Credit Facility requires us to comply with maximum net lease adjusted leverage and minimum fixed charge coverage ratios. We are not subject to these coverage ratios for a period of time due to the Second Amendment to the Revolving Credit Facility described above. In addition, the Revolving Credit Facility contains other customary affirmative and negative covenants, including those which (subject to certain exceptions and dollar thresholds) limit our ability to incur debt; incur liens; make investments; engage in mergers, consolidations, liquidations or acquisitions; dispose of assets; make distributions on or repurchase equity securities; engage in transactions with affiliates; and prohibits us, with certain exceptions, from engaging in any line of business not related to our current line of business. As of March 31,September 29, 2021, we were in compliance with all covenants.
As of March 31,September 29, 2021, the Revolving Credit Facility had unamortized deferred financing costs of $0.1 million, and was included in Other assets on the Condensed Consolidated Balance Sheet. TotalSheets. During the thirteen and thirty-nine weeks ended September 29, 2021, total interest expense related to the Revolving Credit Facility werewas approximately nil and $0.4 million, respectively and $0.1 million for theand $0.7 million, respectively, during thirteen and thirty-nine weeks ended March 31, 2021 and March 25, 2020, respectively.September 23, 2020. Total interest expense for the thirteenthirty-nine weeks ended March 31,September 29, 2021 primarily included write-off of previously capitalized costs on the Revolving Credit Facility.
Convertible Notes
In March 2021, we issued $225.0 million aggregate principal amount of 0% Convertible Senior Notes due 2028 in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933. We granted an option to the initial purchasers to purchase up to an additional $25.0 million aggregate principal amount of Convertible Notes to cover over-allotments, which was subsequently fully exercised during March 2021, resulting in a total issuance of $250.0 million aggregate principal amount of Convertible Notes. The Convertible Notes will mature on March 1, 2028, unless earlier converted, redeemed or repurchased in certain circumstances. Upon conversion, we pay or deliver, as the case may be, cash, shares of Shake Shack’s Class A common stock or a combination of cash and shares of Shake Shack’s Class A common stock, at our election.
The Convertible Notes are convertible at the option of the holders at any time prior to the close of business on the business day immediately preceding December 1, 2027, only under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending on June 30, 2021 (and only during such fiscal quarter), if the last reported sale price of our Class A common stock, par value $0.001 per share, for at least 20 trading days (whether or not consecutive) during a period of 30
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consecutive trading days ending on, and including, the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price for the Convertible Notes on each applicable trading day; (2) during the five business
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day period after any ten consecutive trading day period in which the trading price (as defined in the Indenture) per $1,000one thousand dollar principal amount of the Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of Class A common stock and the conversion rate for the Convertible Notes on each such trading day; (3) if we call such Convertible Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date, but only with respect to the Convertible Notes called (or deemed called) for redemption; and (4) upon the occurrence of specified corporate events as set forth in the Indenture. On or after December 1, 2027, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders of the Convertible Notes may convert all or any portion of their Convertible Notes at any time, regardless of the foregoing circumstances.
The Convertible Notes had an initial conversion rate of 5.8679 shares of Shake Shack’s Class A common stock per $1,000one thousand dollar principal amount of Convertible Notes, which is equivalent to an initial conversion price of approximately $170.42 per share of Shake Shack’s Class A common stock.
We may not redeem the Convertible Notes prior to March 6, 2025. We may redeem for cash all or any portion of the Convertible Notes, at our option, on or after March 6, 2025 if the last reported sale price of Shake Shack’s Class A common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period (including the last trading day of such period) ending on, and including, the trading day immediately preceding the date on which we provide notice of redemption at a redemption price equal to 100% of the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid special interest, if any, to, but excluding, the redemption date.
In addition, if we undergo a fundamental change (as defined in the indenture governing the Convertible Notes), subject to certain conditions, holders may require us to repurchase for cash all or any portion of their Convertible Notes at a repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus accrued and unpaid special interest, if any, to, but excluding, the fundamental change repurchase date. In addition, following certain corporate events that occur prior to the maturity date of the Convertible Notes or if we deliver a notice of redemption in respect of some or all of the Convertible Notes, we will, in certain circumstances, increase the conversion rate of the Convertible Notes for a holder who elects to convert our Convertible Notes in connection with such a corporate event or convert our Convertible Notes called (or deemed called) for redemption during the related redemption period, as the case may be.
Contemporaneously with the issuance of the Convertible Notes, Shake Shack Inc. entered into an Intercompany Note with SSE Holdings, LLC. SSE Holdings promises to pay Shake Shack Inc., for value received, the principal amount with interest of the Intercompany Note in March 2028. Shake Shack Inc. will exercise its right to convert the Intercompany Note to maintain at all times a one-to-one ratio between the number of common units, directly or indirectly, by Shake Shack Inc and the aggregate number of outstanding shares of common stock.
As of March 31,September 29, 2021, the Convertible Notes had a gross principal balance of $250.0 million and a balance of $242.9$243.3 million, net of unamortized discount and debt issuance costs of $7.1$6.7 million. As of March 31,September 29, 2021, the unamortized balance of discount and debt issuance costs was recorded as a contra-liability and netted with Long-term debt on the Condensed Consolidated Balance Sheets and was being amortized as interest expense using the effective interest method. Total amortization expense was $0.1$0.3 million and $0.6 million respectively, for the thirteen and thirty-nine weeks ended March 31,September 29, 2021 and was included in Interest expense in the Condensed Consolidated Statements of Income (Loss). In connection with the Convertible Notes, wethe Company also incurred costs of $0.2 million, including consulting and advisory fees inof $0.2 million for the thirteenthirty-nine weeks ended March 31,September 29, 2021 and was included in General and administrative expense in the Condensed Consolidated Statements of Income (Loss).
At March 31,September 29, 2021, the fair value of the Convertible Notes was approximately $248.1$215.9 million, based on external pricing data, including available quoted market prices of these instruments, and consideration of comparable debt instruments with similar interest rates and trading frequency, among other factors, and is classified as a Level 2 measurement within the fair value hierarchy.
OFF-BALANCE SHEET ARRANGEMENTS
There have been no material changes to our off-balance sheet arrangements as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 30, 2020.
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CONTRACTUAL OBLIGATIONS
There have been no material changes to the contractual obligations as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 30, 2020, other than those made in the ordinary course of business.
OFF-BALANCE SHEET ARRANGEMENTS
There have been no material changes to our off-balance sheet arrangements as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 30, 2020.
CRITICAL ACCOUNTING POLICIES AND ESTIMATES
Our discussion and analysis of our consolidated financial condition and results of operations is based upon the accompanying condensed consolidated financial statements and notes thereto, which have been prepared in accordance with GAAP. The preparation of the condensed consolidated financial statements requires us to make estimates, judgments and assumptions, which we believe to be reasonable, based on the information available. These estimates and assumptions affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. Variances in the estimates or assumptions used to actual experience could yield materially different accounting results. On an ongoing basis, we evaluate the continued appropriateness of our accounting policies and resulting estimates to make adjustments we consider appropriate under the facts and circumstances. There have been no significant changes to our critical accounting policies as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 30, 2020.
Recently Issued Accounting Pronouncements
See "Note 2:Refer to Note 2, Summary of Significant Accounting Policies—Recently Issued Accounting Pronouncements”Policies under Part I, Item 1 of this Form 10-Q.
Item 3. Quantitative and Qualitative Disclosures About Market Risk.
There have been no material changes to our exposure to market risks as described in Part II, Item 7A of our Annual Report on Form 10-K for the fiscal year ended December 30, 2020.
Item 4. Controls and Procedures.
DISCLOSURE CONTROLS AND PROCEDURES
Under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of such date. Our disclosure controls and procedures are designed to ensure that information required to be disclosed in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.
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CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING
There were no changes to our internal control over financial reporting that occurred during the quarter ended March 31,September 29, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
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PART II – OTHER INFORMATION
Item 1. Legal Proceedings.
The information required by this Item is incorporated by reference to Part I, Item 1, Note 13:13, Commitments and Contingencies—Legal Contingencies.
Item 1A. Risk Factors.
There have been no material changes to the risk factors disclosed in the Company's Annual Report on Form 10-K for the fiscal year ended December 30, 2020.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.
None.
Item 3. Defaults Upon Senior Securities.
None.
Item 4. Mine Safety Disclosures.
Not applicable.
Item 5. Other Information.
None.
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Item 6. Exhibits.
Exhibit
Number
Incorporated by ReferenceFiled
Herewith
Exhibit DescriptionFormExhibitFiling Date
8-K3.12/10/2015
8-K3.110/4/2019
S-1/A4.11/28/2015
*
*
*
*
#
101.INSXBRL Instance Document - the instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document*
101.SCHXBRL Taxonomy Extension Schema Document*
101.CALXBRL Taxonomy Extension Calculation Linkbase Document*
101.DEFXBRL Taxonomy Extension Definition Linkbase Document*
101.LABXBRL Taxonomy Extension Label Linkbase Document*
101.PREXBRL Taxonomy Extension Presentation Linkbase Document*
104Cover Page Interactive Data File - the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document*
Exhibit
Number
Incorporated by ReferenceFiled
Herewith
Exhibit DescriptionFormExhibitFiling Date
8-K3.12/10/2015
8-K3.110/4/2019
S-1/A4.11/28/2015
*
*
#
101.INSXBRL Instance Document - the instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document*
101.SCHXBRL Taxonomy Extension Schema Document*
101.CALXBRL Taxonomy Extension Calculation Linkbase Document*
101.DEFXBRL Taxonomy Extension Definition Linkbase Document*
101.LABXBRL Taxonomy Extension Label Linkbase Document*
101.PREXBRL Taxonomy Extension Presentation Linkbase Document*
104Cover Page Interactive Data File - the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document*
#    Furnished herewith.

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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
 Shake Shack Inc.
 (Registrant)
Date: May 7,November 5, 2021By:  /s/ Randy Garutti
 Randy Garutti
 Chief Executive Officer
(Principal Executive Officer and Duly Authorized Officer)
Date: May 7,November 5, 2021By:  /s/ Tara ComonteKatherine I. Fogertey
 Tara ComonteKatherine I. Fogertey
 President and Chief Financial Officer
(Principal Financial Officer and Duly Authorized Officer)



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