10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED September 24, 2023

☐     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: 001-40951

PORTILLO'S INC.

(Exact name of registrant as specified in its charter)

Delaware	87-1104304
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
2001 Spring Road, Suite 400, Oak Brook, Illinois 60523
(Address of principal executive offices)

(630) 954-3773

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Class A common stock, $0.01 par value per share	PTLO	Nasdaq Global Select Market

Indicate by check mark whether 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    ☐     No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

☒     Yes ☐     No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a 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 filer	☐	Accelerated 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 Exchange Act).

☐     Yes     ☒     No

As of October 26, 2023, there were 55,442,273 shares of the registrant's Class A common stock, par value $0.01 per share, issued and outstanding.

TABLE OF CONTENTS

Cautionary Note Regarding Forward-Looking Information			1
Part I	Financial Information
	Item 1.	Financial Statements (Unaudited)	3
		Condensed Consolidated Balance Sheets	3
		Condensed Consolidated Statements of Operations	4
		Condensed Consolidated Statements of Stockholders' Equity	6
		Condensed Consolidated Statements of Cash Flows	7
		Notes to Condensed Consolidated Financial Statements	9
	Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	24
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	39
	Item 4.	Controls and Procedures	39
Part II	Other Information
	Item 1.	Legal Proceedings	40
	Item 1A.	Risk Factors	40
	Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	41
	Item 3.	Defaults Upon Senior Securities	41
	Item 4.	Mine Safety Disclosures	41
	Item 5.	Other Information	42
	Item 6.	Exhibits	43
	Signatures		44

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 are forward-looking statements. Many of the forward-looking statements are located in Part I, Item 2 of this Form 10-Q under the heading "Management's Discussion and Analysis of Financial Condition and Results of Operations." 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," "outlook," "potential," "project," "projection," "plan," "intend," "seek," "may," "could," "would," "will," "should," "can," "can have," "likely," the negatives thereof and other similar expressions.

Forward-looking statements are based on our current expectations and assumptions regarding our business, the economy and other future conditions. Because forward-looking statements relate to the future, by their nature, they are subject to inherent uncertainties, risks and changes in circumstances that we may not predict. As a result, our actual results may differ materially from those contemplated by the forward-looking statements, and you should not unduly rely on these statements. Important factors that could cause actual results to differ materially from those in the forward-looking statements include regional, national or global political, economic, business, competitive, market and regulatory conditions and the following:

•risks related to or arising from our organizational structure;

•risks of food-borne illness and food safety and other health concerns about our food;

•the impact of unionization activities of our restaurant workers on our operations and profitability;

•the impact of recent bank failures on the marketplace, including the ability to access credit;

•risks associated with our reliance on certain information technology systems and potential failures or interruptions;

•privacy and cyber security risks related to our digital ordering and payment platforms for our delivery business;

•the impact of competition, including from our competitors in the restaurant industry or our own restaurants;

•the increasingly competitive labor market and our ability to attract and retain the best talent and qualified employees;

•the impact of federal, state or local government regulations relating to privacy, data protection, advertising and consumer protection, building and zoning requirements, costs or ability to open new restaurants, or sale of food and alcoholic beverage control regulations;

•inability to achieve our growth strategy, such as the availability of suitable new restaurant sites in existing and new markets and opening of new restaurants at the anticipated rate and on the anticipated timeline;

•the impact of consumer sentiment and other economic factors on our sales;

•increases in food and other operating costs, tariffs and import taxes, and supply shortages;

•the potential future impact of COVID-19 (including any variant) on our results of operations, supply chain or liquidity; and

•other risks identified in our filings with the Securities and Exchange Commission (the “SEC”).

All forward-looking statements are expressly qualified in their entirety by these cautionary statements. 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 25, 2022 filed with the SEC on March 2, 2023, which is available on the SEC's website at www.sec.gov.

The forward-looking statements included in this Form 10-Q are made only as of the date hereof. The 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.

Portillo's Inc. Form 10-Q | 1

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)
	Page
Condensed Consolidated Balance Sheets	3
Condensed Consolidated Statements of Operations	4
Condensed Consolidated Statements of Stockholders' Equity	6
Condensed Consolidated Statements of Cash Flows	7
Notes to Condensed Consolidated Financial Statements	9
Note 1. Description Of Business	9
Note 2. Summary Of Significant Accounting Policies	10
Note 3. Revenue Recognition	11
Note 4. Inventories	12
Note 5. Property & Equipment, Net	12
Note 6. Goodwill & Intangible Assets	13
Note 7. Fair Value of Financial Instruments	14
Note 8. Debt	15
Note 9. Leases	17
Note 10. Non-Controlling Interests	18
Note 11. Equity-Based Compensation	19
Note 12. Income Taxes	20
Note 13. Earnings Per Share	21
Note 14. Contingencies	22
Note 15. Related Party Transactions	22
Note 16. Subsequent Events	23

Portillo's Inc. Form 10-Q | 2

PORTILLO'S INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(UNAUDITED)

(In thousands, except share and per share data)

	September 24, 2023		December 25, 2022
ASSETS
CURRENT ASSETS:
Cash and cash equivalents and restricted cash	$	12,947	$	44,427
Accounts and tenant improvement receivables	14,962		8,590
Inventory	6,418		7,387
Prepaid expenses	4,798		4,922
Total current assets	39,125		65,326
Property and equipment, net	274,605		227,036
Operating lease assets	191,488		166,808
Goodwill	394,298		394,298
Trade names	223,925		223,925
Other intangible assets, net	29,634		31,800
Equity method investment	16,543		16,274
Deferred tax assets	184,375		150,497
Other assets	3,847		4,119
Total other assets	852,622		820,913
TOTAL ASSETS	$	1,357,840	$	1,280,083
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
Accounts payable	$	33,481	$	30,273
Current portion of long-term debt	7,500		4,155
Current portion of Tax Receivable Agreement liability	6,527		813
Current deferred revenue	4,094		7,292
Short-term operating lease liability	5,048		4,849
Accrued expenses	33,355		29,915
Total current liabilities	90,005		77,297
LONG-TERM LIABILITIES:
Long-term debt, net of current portion	287,486		314,425
Tax Receivable Agreement liability	294,950		252,003
Long-term operating lease liability	234,699		200,166
Other long-term liabilities	2,973		3,291
Total long-term liabilities	820,108		769,885
Total liabilities	910,113		847,182
COMMITMENTS AND CONTINGENCIES (NOTE 14)
STOCKHOLDERS' EQUITY:
Preferred stock, $0.01 par value per share, 10,000,000 shares authorized, none issued or outstanding	—		—
Class A common stock, $0.01 par value per share, 380,000,000 shares authorized, and 55,182,141 and 48,420,723 shares issued and outstanding at September 24, 2023 and December 25, 2022, respectively.	552		484
Class B common stock, $0.00001 par value per share, 50,000,000 shares authorized, and 17,472,926 and 23,837,162 shares issued and outstanding at September 24, 2023 and December 25, 2022, respectively.	—		—
Additional paid-in-capital	305,515		260,664
Retained earnings (accumulated deficit)	5,823		(4,812)
Total stockholders' equity attributable to Portillo's Inc.	311,890		256,336
Non-controlling interest	135,837		176,565
Total stockholders' equity	447,727		432,901
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	1,357,840	$	1,280,083

See accompanying notes to unaudited condensed consolidated financial statements.

Portillo's Inc. Form 10-Q | 3

PORTILLO'S INC

CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

(UNAUDITED)

(In thousands, except share and per share data)

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
REVENUES, NET	$	166,805	$	151,121	$	492,047	$	436,226
COST AND EXPENSES:
Restaurant operating expenses:
Food, beverage and packaging costs	55,551		53,374		165,407		151,414
Labor	42,588		39,133		126,200		114,352
Occupancy	8,210		7,644		24,898		22,778
Other operating expenses	18,571		16,882		56,107		47,225
Total restaurant operating expenses	124,920		117,033		372,612		335,769
General and administrative expenses	18,898		18,059		57,285		49,185
Pre-opening expenses	2,410		791		5,029		1,770
Depreciation and amortization	6,178		5,289		17,788		15,803
Net income attributable to equity method investment	(422)		(409)		(1,010)		(807)
Other income, net	(276)		(228)		(630)		(333)
OPERATING INCOME	15,097		10,586		40,973		34,839
Interest expense	6,573		7,090		20,539		19,286
Interest income	(116)		—		(116)		—
Tax Receivable Agreement liability adjustment	(528)		(708)		(1,691)		(2,462)
Loss on debt extinguishment	—		—		3,465		—
INCOME BEFORE INCOME TAXES	9,168		4,204		18,776		18,015
Income tax expense	2,622		1,006		3,605		3,511
NET INCOME	6,546		3,198		15,171		14,504
Net income attributable to non-controlling interests	2,185		1,606		4,536		7,607
NET INCOME ATTRIBUTABLE TO PORTILLO'S INC.	$	4,361	$	1,592	$	10,635	$	6,897
Net income per common share attributable to Portillo's Inc.:
Basic	$	0.08	$	0.04	$	0.20	$	0.19
Diluted	$	0.07	$	0.04	$	0.19	$	0.17
Weighted-average common shares outstanding:
Basic	55,127,133		38,899,373		53,231,086		36,899,208
Diluted	58,767,812		42,625,160		56,813,653		40,785,766

See accompanying notes to unaudited condensed consolidated financial statements.

Portillo's Inc. Form 10-Q | 4

PORTILLO'S INC

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(UNAUDITED)

(In thousands, except share data)

Quarters Ended September 24, 2023 and September 25, 2022
	Class A Common Stock			Class B Common Stock
	Shares	Amount		Shares	Amount		Additional Paid-in Capital		Retained Earnings (Accumulated Deficit)		Non-Controlling Interest		Total Stockholders' Equity
Balance at June 26, 2022	36,218,355	$	362	35,673,321	$	—	$	192,862	$	(10,645)	$	261,233	$	443,812
Net income	—	—		—	—		—		1,592		1,606		3,198
Equity-based compensation	—	—		—	—		2,000		—		1,698		3,698
Activity under equity-based compensation plans	64,109	—		—	—		271		—		—		271
Non-controlling interest adjustment	—	—		—	—		43,811		—		(43,811)		—
Redemption of LLC Interests	5,942,559	59		(5,942,559)	—		(59)		—		—		—
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	—	—		—	—		(6,854)		—		—		(6,854)
Balance at September 25, 2022	42,225,023	421		29,730,762	—		232,031		(9,053)		220,726		444,125
Balance at June 25, 2023	55,073,993	551		17,472,926	—		301,622		1,462		132,821		436,456
Net income	—	—		—	—		—		4,361		2,185		6,546
Equity-based compensation	—	—		—	—		3,275		—		1,049		4,324
Activity under equity-based compensation plans	108,148	1		—	—		400		—		—		401
Non-controlling interest adjustment	—	—		—	—		218		—		(218)		—
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	—	—		—	—		—		—		—		—
Balance at September 24, 2023	55,182,141	$	552	17,472,926	$	—	$	305,515	$	5,823	$	135,837	$	447,727

See accompanying notes to unaudited condensed consolidated financial statements.

Portillo's Inc. Form 10-Q | 5

PORTILLO'S INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(UNAUDITED)

(In thousands, except share data)

Three Quarters Ended September 24, 2023 and September 25, 2022
	Class A Common Stock			Class B Common Stock
	Shares	Amount		Shares	Amount		Additional Paid-in Capital		Retained Earnings (Accumulated Deficit)		Non-Controlling Interest		Total Stockholders' Equity
Balance at December 26, 2021	35,807,171	$	358	35,673,321	$	—	$	186,856	$	(15,950)	$	252,142	$	423,406
Net income	—	—		—	—		—		6,897		7,607		14,504
Equity-based compensation	—	—		—	—		5,837		—		5,510		11,347
Activity under equity-based compensation plans	475,293	4		—	—		1,718		—		—		1,722
Redemption of LLC Interests	5,942,559	59		(5,942,559)	—		(59)		—		—		—
Non-controlling interest adjustment	—	—		—	—		44,533		—		(44,533)		—
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	—	—		—	—		(6,854)		—		—		(6,854)
Balance at September 25, 2022	42,225,023	421		29,730,762	—		232,031		(9,053)		220,726		444,125
Balance at December 25, 2022	48,420,723	484		23,837,162	—		260,664		(4,812)		176,565		432,901
Net income	—	—		—	—		—		10,635		4,536		15,171
Equity-based compensation	—	—		—	—		8,846		—		3,198		12,044
Activity under equity-based compensation plans	397,182	4		—	—		1,688		—		—		1,692
Redemption of LLC Interests	6,364,236	64		(6,364,236)	—		(64)		—		—		—
Non-controlling interest adjustment	—	—		—	—		48,063		—		(48,063)		—
Distributions paid to non-controlling interest holders	—	—		—	—		—		—		(399)		(399)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	—	—		—	—		(13,682)		—		—		(13,682)
Balance at September 24, 2023	55,182,141	$	552	17,472,926	$	—	$	305,515	$	5,823	$	135,837	$	447,727

See accompanying notes to unaudited condensed consolidated financial statements.

Portillo's Inc. Form 10-Q | 6

PORTILLO'S INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

(In thousands)

	Three Quarters Ended
	September 24, 2023		September 25, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	15,171	$	14,504
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,788		15,803
Amortization of debt issuance costs and discount	814		1,952
Loss on sales of assets	512		212
Equity-based compensation	12,044		11,347
Deferred rent and tenant allowance	—		3,288
Deferred income tax expense	3,605		3,511
Tax Receivable Agreement liability adjustment	(1,691)		(2,462)
Amortization of deferred lease incentives	—		(289)
Gift card breakage	(688)		(626)
Loss on debt extinguishment	3,465		—
Changes in operating assets and liabilities:
Accounts receivable	(1,293)		(2,064)
Receivables from related parties	(100)		(34)
Inventory	969		144
Other current assets	124		1,666
Operating lease assets	5,685		—
Accounts payable	(2,777)		(1,089)
Accrued expenses and other liabilities	1,023		(8,448)
Operating lease liabilities	(1,775)		—
Deferred lease incentives	1,013		1,651
Other assets and liabilities	(319)		(97)
NET CASH PROVIDED BY OPERATING ACTIVITIES	53,570		38,969
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(57,660)		(30,012)
Proceeds from the sale of property and equipment	81		44
NET CASH USED IN INVESTING ACTIVITIES	(57,579)		(29,968)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	300,000		—
Payments of long-term debt	(324,303)		(2,493)
Proceeds from equity offering, net of underwriting discounts	179,306		183,436
Repurchase of outstanding equity / Portillo's OpCo units	(179,306)		(183,436)
Distributions paid to non-controlling interest holders	(399)		—
Proceeds from stock option exercises	1,321		1,722
Employee withholding taxes related to net settled equity awards	(112)		—
Proceeds from Employee Stock Purchase Plan purchases	404		—
Payments of Tax Receivable Agreement liability	(813)		—
Payment of deferred financing costs	(3,569)		—
Payment of initial public offering issuance costs	—		(771)
NET CASH USED IN FINANCING ACTIVITIES	(27,471)		(1,542)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	(31,480)		7,459
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF THE PERIOD	44,427		39,263
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF THE PERIOD	$	12,947	$	46,722

See accompanying notes to unaudited condensed consolidated financial statements.

Portillo's Inc. Form 10-Q | 7

PORTILLO'S INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

(In thousands)

	Three Quarters Ended
	September 24, 2023		September 25, 2022
SUPPLEMENTAL CASH FLOW INFORMATION
Interest paid	$	15,738	$	16,856
Income tax paid	—		—
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Accrued capital expenditures	$	15,915	$	6,823
Establishment of liabilities under Tax Receivable Agreement	51,165		51,112

See accompanying notes to unaudited condensed consolidated financial statements.

Portillo's Inc. Form 10-Q | 8

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1.    DESCRIPTION OF BUSINESS

Portillo’s Inc. ( "Inc.") was formed and incorporated as a Delaware corporation on June 8, 2021. Inc. was formed for the purpose of completing an initial public offering ("IPO") and related reorganization transactions (collectively, the "Transactions”) in order to carry on the business of PHD Group Holdings LLC and its subsidiaries ("Portillo's OpCo"). Following the consummation of the Transactions on October 20, 2021, Inc. became the sole managing member of Portillo’s OpCo, and as sole managing member, Inc. operates and controls all of the business and affairs of Portillo's OpCo. As a result, Inc. consolidates the financial results of Portillo's OpCo and reports a non-controlling interest representing the economic interest in Portillo's OpCo held by the other members of Portillo's OpCo (the "pre-IPO LLC Members"). Unless the context otherwise requires, references to "we," "us," "our," "Portillo's," and the "Company" refer to Portillo's Inc. and its subsidiaries, including Portillo's OpCo.

The Company operates fast-casual restaurants in 10 states, along with two food production commissaries in Illinois. As of September 24, 2023 and December 25, 2022, the Company had 77 and 71 restaurants in operation, respectively. The Company also had two non-traditional locations in operation as of September 24, 2023 and December 25, 2022. These non-traditional locations include a food truck and a ghost kitchen (small kitchen with no store-front presence, used to fill online orders). Portillo's additionally has a 50% interest in a single restaurant owned by C&O, which is excluded from the Company's restaurant count. The Company’s principal corporate offices are located in Oak Brook, Illinois.

Secondary Offerings

In the first quarter of 2023, the Company completed a secondary offering of 8,000,000 shares of the Company's Class A common stock at an offering price of $21.05 per share. On April 5, 2023, the Underwriter exercised its overallotment option in part, to purchase an additional 620,493 shares of the Company's Class A common stock at an offering price of $21.05 per share (collectively the "Q1 Secondary Offering and Overallotment Option"). We used all of the net proceeds from the Q1 Secondary Offering and Overallotment Option to purchase LLC Units and corresponding shares of Class B common stock from certain pre-IPO LLC Members and to repurchase shares of Class A common stock from the shareholders of the entities treated as corporations for U.S. tax purposes that held LLC Units prior to the Transactions ("Blocker Companies") at a price per LLC Unit or share of Class A common stock, as applicable, equal to the public offering price per share of Class A common stock, less the underwriting discounts and commissions. The proceeds from the Q1 Secondary Offering and Overallotment Option were used to (i) purchase 2,269,776 existing shares of Class A common stock from the shareholders of the Blocker Companies and (ii) redeem 6,350,717 LLC Units held by the pre-IPO LLC Members. In connection with the redemption, 6,350,717 shares of Class B common stock were surrendered by the pre-IPO LLC Members and canceled and the Company received 6,350,717 newly-issued LLC Units, increasing the Company's total ownership interest in Portillo's OpCo. As a result, Portillo’s did not receive any proceeds from the offering, and the total number of shares of Class A common stock and Class B common stock did not change; however, the number of outstanding shares of Class A common stock increased by the same number of the canceled shares of Class B common stock. There was no secondary offering completed in the third quarter of 2023.

In the third and fourth quarters of 2022, the Company completed two secondary offerings of 8,066,458 shares (including 66,458 shares sold to the underwriters pursuant to their overallotment option) and 8,000,000 shares, respectively, of the Company's Class A common stock at an offering price of $23.75 and $22.69, respectively, per share.

As of September 24, 2023, the Company owns 76.0% of Portillo's OpCo and the pre-IPO LLC Members own the remaining 24.0% of Portillo's OpCo.

Portillo's Inc. Form 10-Q | 9

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The Company has prepared the accompanying unaudited condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial statements and pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments necessary for a fair presentation of our financial position and results of operations. Interim results of operations are not necessarily indicative of the results that may be achieved for the full year. The financial statements and related notes do not include all information and footnotes required by GAAP for annual reports. The unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 25, 2022.

All intercompany balances and transactions have been eliminated in consolidation.

The Company does not have any components of other comprehensive income (loss) recorded within its condensed consolidated financial statements, and therefore, does not separately present a statement of comprehensive income (loss).

Segment Reporting

The Company owns and operates fast-casual restaurants in the United States, along with two food production commissaries in Illinois. The Company’s chief operating decision maker (the “CODM”) is its Chief Executive Officer ("CEO"). The CODM reviews financial performance and allocates resources at a consolidated level on a recurring basis. The Company has one operating segment and one reportable segment.

Fiscal Year

The Company uses a 52- or 53-week fiscal year ending on the Sunday prior to or on December 31. In a 52-week fiscal year, each quarterly period is comprised of 13 weeks. The additional week in a 53-week fiscal year is added to the fourth quarter. Fiscal 2023 and 2022 consist of 53 and 52 weeks, respectively. The fiscal periods presented in this report are the quarters and three quarters ended September 24, 2023 and September 25, 2022, respectively.

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 liabilities at the date of the financial statements, and the reported amounts of sales and expenses during the period. Actual results could differ from those estimates.

Portillo's Inc. Form 10-Q | 10

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Recently Adopted Accounting Standards

In March 2020, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The pronouncement provides temporary optional expedients and exceptions to the current guidance on contract modifications and hedge accounting to ease the financial reporting burden related to the expected market transition from the London Interbank Offered Rate ("LIBOR") and other interbank offered rates to alternative reference rates. The guidance was effective upon issuance and generally can be applied to applicable contract modifications through December 31, 2022. FASB has extended the sunset date to December 31, 2024. The Company does not believe the impact of the transition from LIBOR to alternative reference rates is material to its consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASC 842"), along with related clarifications and improvements. The pronouncement requires lessees to recognize a liability, which represents the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet. The guidance requires disclosure of key information about leasing arrangements that is intended to give financial statement users the ability to assess the amount, timing, and potential uncertainty of cash flows related to leases. The update is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted this standard effective December 27, 2021, electing the modified retrospective approach to apply the standard as of the transition date. We have elected the transition package of three practical expedients permitted under the new standard, which eliminates the requirement to reassess the conclusions about historical lease identifications, lease classifications, and initial direct costs. We did not elect the hindsight practical expedient, which permits the use of hindsight when determining lease terms and impairments of right-of-use assets. We elected to apply the practical expedient of combining lease and non-lease components. Additionally, we elected to utilize the short-term lease exception policy, which allows us to not apply the recognition requirements of this standard to leases with a term of 12 months or less. The adoption of this standard had a significant impact on the Company’s condensed consolidated balance sheet as we recognized the right-of-use asset and lease liabilities for our operating leases. The adoption had an immaterial impact on the condensed consolidated statement of operations, cash flows and overall liquidity. See Note 9. Leases for additional information.

The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to its condensed consolidated financial statements.

NOTE 3.    REVENUE RECOGNITION

Revenues from retail restaurants are presented net of discounts and recognized when food and beverage products are sold to the end customer. Sales taxes collected from customers are excluded from revenues and the obligation is included in accrued liabilities until the taxes are remitted to the appropriate taxing authorities.

Delivery sales are generally fulfilled by third-party delivery partners whether ordered through the Portillo's app and website ("Dispatch Sales") or through third-party delivery partners ("Marketplace Sales"). Dispatch Sales include delivery and service fees as the Company controls the delivery. Revenue from Dispatch Sales is recognized when food is delivered to the customer. For these sales, the Company receives payment directly from the customer at the time of sale. Revenue for Marketplace Sales is recognized in the amount paid to the delivery partner by the customer for food and excludes delivery and service fees charged by the third-party delivery partner as the Company does not control the delivery. Revenue from Marketplace Sales is recognized when food is delivered to the customer. For these sales, the Company receives payment from the delivery partner subsequent to the transfer of order, which is generally paid one week in arrears. For all delivery sales of food, the Company is considered the principal and recognizes revenue on a gross basis.

The Company sells gift cards which do not have expiration dates. The Company records the sale of the gift card as a contract liability and recognizes revenue from gift cards when: (i) the gift card is redeemed by the customer; or (ii) in the event a gift card is not expected to be redeemed, in proportion to the pattern of rights exercised by the customer (gift card breakage). The Company has determined that 11% of gift card sales will not be redeemed and will be retained by us based on a portfolio assessment of historical data on gift card redemption patterns. Gift card breakage is recorded within revenues, net in the condensed consolidated statements of operations. The Company recognized gift card breakage of $0.2 million and $0.7 million for the quarter and three quarters ended September 24, 2023, respectively, and $0.1 million and $0.6 million for the quarter and three quarters ended September 25, 2022, respectively.

Portillo's Inc. Form 10-Q | 11

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The Company’s revenue related to performance obligations not yet satisfied is revenue from gift cards sold but not yet redeemed. The gift card liability included in current deferred revenue on the condensed consolidated balance sheets is as follows (in thousands):

	September 24, 2023		December 25, 2022
Gift card liability	$	4,046	$	6,988

Revenue recognized in the condensed consolidated statement of operations for the redemption of gift cards that were included in their respective liability balances at the beginning of the year is as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Revenue recognized from gift card liability balance at the beginning of the year	$	599	$	534	$	3,436	$	3,215

NOTE 4.    INVENTORIES

Inventories consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
Raw materials	$	4,119	$	5,722
Work in progress	249		104
Finished goods	1,089		876
Consigned inventory	961		685
	$	6,418	$	7,387

NOTE 5.    PROPERTY & EQUIPMENT, NET

Property and equipment, net consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
Land improvements	$	17,854	$	16,369
Furniture, fixtures, and equipment	146,027		126,130
Leasehold improvements	192,393		153,341
Transportation equipment	2,647		2,281
Construction-in-progress	36,139		35,386
	395,060		333,507
Less accumulated depreciation	(120,455)		(106,471)
	$	274,605	$	227,036

Depreciation expense was $5.5 million and $15.6 million for the quarter and three quarters ended September 24, 2023, respectively, and $4.5 million and $13.4 million for the quarter and three quarters ended September 25, 2022, respectively, and is included in depreciation and amortization in the condensed consolidated statements of operations.

Portillo's Inc. Form 10-Q | 12

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 6.    GOODWILL & INTANGIBLE ASSETS

The Company has one reporting unit for goodwill which is evaluated for impairment annually in the fourth quarter of each fiscal year.

Intangibles, net consisted of the following (in thousands):

	September 24, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(26,483)		29,634
	$	280,042	$	(26,483)	$	253,559

	December 25, 2022
	Gross Carrying Amount		Accumulated Amortization		ASC 842 Adjustment		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(24,317)		—		31,800
Covenants not-to-compete	40,799		(40,799)		—		—
Favorable rental contracts	2,991		(1,849)		(1,142)		—
	$	323,832	$	(66,965)	$	(1,142)	$	255,725

Amortization expense was $0.7 million and $2.2 million for the quarter and three quarters ended September 24, 2023, respectively, and $0.8 million and $2.4 million for the quarter and three quarters ended September 25, 2022, respectively, and is included in depreciation and amortization in the condensed consolidated statements of operations.

The estimated aggregate amortization expense related to intangible assets held at September 24, 2023 for the remainder of this year and the succeeding five years and thereafter is as follows (in thousands):

	Estimated Amortization
2023 (excluding the three quarters ended September 24, 2023)	$	723
2024	2,813
2025	2,707
2026	2,707
2027	2,707
2028	2,707
2029 and thereafter	15,270
	$	29,634

Portillo's Inc. Form 10-Q | 13

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 7.    FAIR VALUE OF FINANCIAL INSTRUMENTS

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The carrying value of the Company's cash and cash equivalents, restricted cash, accounts and tenant improvement receivable, accounts payable and all other current assets and liabilities approximate fair values due to the short-term nature of these financial instruments.

Other assets consist of a deferred compensation plan with related assets held in a rabbi trust.

Deferred Compensation Plan - The Company maintains a rabbi trust to fund obligations under a deferred compensation plan. Amounts in the rabbi trust are invested in mutual funds, which are designated as trading securities carried at fair value. The fair value measurement of these trading securities is considered Level 1 of the fair value hierarchy as they are measured using quoted market prices.

As of September 24, 2023 and December 25, 2022, the fair value of the mutual fund investments and deferred compensation obligations were as follows (in thousands):

	September 24, 2023		December 25, 2022
	Level 1		Level 1
Assets - Investments designated for deferred compensation plan
Cash/money accounts	$	1,027	$	1,470
Mutual funds	2,381		2,241
Total assets	$	3,408	$	3,711

As of September 24, 2023 and December 25, 2022, we had no Level 2 or Level 3 assets.

The deferred compensation investments and obligations are included in other assets, accrued expenses and other long-term liabilities in the consolidated balance sheets. Changes in the fair value of securities held in the rabbi trust are recognized as trading gains and losses and included in other income in the consolidated statements of operations and offsetting increases or decreases in the deferred compensation obligation are recorded in other long-term liabilities in the consolidated balance sheets.

Refer to Note 8. Debt for additional information relating to the fair value of the Company's outstanding debt instruments.

Assets Measured at Fair Value on a Non-Recurring Basis

Assets that are measured at fair value on a non-recurring basis include property and equipment, net, operating lease assets, equity-method investment, goodwill and indefinite-lived intangible assets. These assets are measured at fair value whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. There were no impairment charges recognized during the quarter and three quarters ended September 24, 2023 and September 25, 2022.

Portillo's Inc. Form 10-Q | 14

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 8.    DEBT

Debt consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
2023 Term Loan	$	298,125	$	—
2014 Term B-3 Loans	—		322,428
Unamortized discount and debt issuance costs	(3,139)		(3,848)
Total debt, net	294,986		318,580
Less: Current portion of long-term debt	(7,500)		(4,155)
Long-term debt, net	$	287,486	$	314,425

2023 Credit Agreement

On February 2, 2023 (the "Closing Date"), PHD Intermediate LLC (“Holdings”), Portillo’s Holdings LLC (the “Borrower”), the other Guarantors party thereto from time to time, each lender party thereto from time to time and Fifth Third Bank, National Association, as Administrative Agent, L/C Issuer and Swing Line Lender entered into a credit agreement (“2023 Credit Agreement”) which provides for a term A loan (the "2023 Term Loan") in an initial aggregate principal amount of $300.0 million and revolving credit commitments in an initial aggregate principal amount of $100.0 million (the “2023 Revolver Facility”). The 2023 Term Loan and 2023 Revolver Facility are scheduled to mature on February 2, 2028.

The 2023 Term Loan and the 2023 Revolver Facility will accrue interest at the forward-looking secured overnight financing rate (“SOFR”) plus an applicable rate determined upon the consolidated total net rent adjusted leverage ratio, subject to a floor of 0.00% (plus a credit spread adjustment of 0.10% per annum for 1-month interest periods and 0.15% for 3-month interest periods).

As of September 24, 2023, the interest rate on the 2023 Term Loan was 8.14%. Pursuant to the 2023 Credit Agreement, as of September 24, 2023, the commitment fees to maintain the 2023 Revolver Facility were 0.250%, letter of credit fees were 2.75%, and letter of credit fronting fees were 0.125%. Commitment fees, letter of credit fees, and letter of credit fronting fees are recorded as interest expense in the condensed consolidated statements of operations. As of September 24, 2023, the effective interest rate was 8.50%.

The 2023 Term Loan will amortize in quarterly installments equalling an aggregate annual amount of $7.5 million for the first two (2) years following the Closing Date, (b) $15.0 million for the third (3rd) and fourth (4th) years following the Closing Date, and (c) $30.0 million for the fifth (5th) year following the Closing Date, commencing on the last day of the first full fiscal quarter ended after the Closing Date, with the balance payable on the final maturity date.

As of September 24, 2023, outstanding borrowings under the 2023 Credit Agreement totaled $298.1 million, comprising of $298.1 million under the 2023 Term Loan. As of September 24, 2023, there were no borrowings under the 2023 Revolver Facility outstanding. Letters of credit issued under the 2023 Revolver Facility totaled $4.3 million. As a result, as of September 24, 2023, the Company had $95.7 million available under the 2023 Revolver Facility. On September 29, 2023, the Company borrowed $7.0 million on the 2023 Revolver Facility (see Note 16. Subsequent Events for additional details).

2014 Credit Agreement

Holdings, the Borrower and certain of its subsidiaries entered into a credit agreement ("2014 Credit Agreement"), dated as of August 1, 2014 and as amended October 25, 2016, May 18, 2018 and December 6, 2019, with UBS AG, Stamford Branch, as the administrative agent and collateral agent, and other lenders from time to time party thereto (the “2014 Lenders”). The 2014 Lenders extended credit in the form of (i) first lien initial term loans in an initial aggregate principal amount of $335.0 million and (ii) a revolving credit facility in an original principal amount equal to $30.0 million, including a letter of credit sub-facility with a $7.5 million sublimit (the “2014 Revolving Facility” and the loans thereunder, the “2014 Revolving Loans”).

Portillo's Inc. Form 10-Q | 15

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

On December 6, 2019, the Borrower entered a third amendment to the 2014 Credit Agreement (the “Third Amendment to 2014 Credit Agreement”) whereby the aggregate principal amount of the term loans as of the effective date of the Third Amendment to 2014 Credit Agreement was $332.4 million (the “2014 Term B-3 Loans”), and the 2014 Revolving Facility was increased to $50.0 million. The maturity date with respect to the 2014 Term B-3 Loans was extended to September 6, 2024, and the maturity date with respect to the 2014 Revolving Loans was extended to June 6, 2024.

In connection with the Third Amendment to 2014 Credit Agreement, the interest rates spread for the 2014 Term B-3 Loans increased by 100 basis points to 5.50% for the adjusted London interbank offered rate ("Eurocurrency Rate") loans. As of September 25, 2022, the interest rate on the 2014 Term B-3 Loans was 6.56%. Beginning with December 31, 2019, the Company is required to pay on the last business day of each calendar quarter, March 31, June 30, September 30, and December 31, an aggregate principal amount of $0.8 million.

As of December 25, 2022, the Company had no borrowings under the 2014 Revolving Facility. As of September 25, 2022, the interest rate on the 2014 Revolving Facility was 3.25%, subject to change based on a consolidated first lien net leverage ratio as defined in the 2014 Credit Agreement. As of September 25, 2022, the commitment fees, pursuant to the 2014 Credit Agreement, to maintain the 2014 Revolving Facility were 0.250%. Also pursuant to the 2014 Credit Agreement, as of September 25, 2022, letter of credit fronting fees were 0.125%. Commitment fees and letter of credit fronting fees are recorded as interest expense in the condensed consolidated statements of operations. As of September 25, 2022, the effective interest rate was 8.84%.

The Company had $4.2 million of letters of credit issued against the 2014 Revolving Facility as of December 25, 2022.

On February 2, 2023, the Company used proceeds from the 2023 Term Loan and 2023 Revolver Facility, along with cash on hand, to pay off the 2014 Credit Agreement in full in the amount of $321.8 million. The 2023 Revolver Facility under the 2023 Credit Agreement replaces the $50.0 million 2014 Revolving Facility under the 2014 Credit Agreement.

Discount and Debt Issuance Costs

Pursuant to the 2023 Credit Agreement, the Company capitalized deferred financing costs and issuance discount of $3.6 million which will be amortized over the term of the 2023 Credit Agreement.

In connection with the repayment of the 2014 Credit Agreement as described above, deferred financing costs and original issuance discount of $3.5 million were recorded as a loss on debt extinguishment during the three quarters ended September 24, 2023 in the condensed consolidated statement of operations.

The Company amortized an immaterial amount and $0.3 million of deferred financing costs during the quarter and three quarters ended September 24, 2023, respectively, and $0.5 million and $1.4 million during the quarter and three quarters ended September 25, 2022, respectively, which is included in interest expense in the condensed consolidated statements of operations. In addition, the Company also amortized $0.2 million and $0.5 million in original issue discount related to the long-term debt during the quarter and three quarters ended September 24, 2023, respectively, and $0.2 million and $0.5 million, respectively, in the quarter and three quarters ended September 25, 2022 which is included in interest expense in the condensed consolidated statements of operations.

Total interest costs incurred were $6.6 million and $20.5 million for the quarter and three quarters ended September 24, 2023, respectively, and $7.1 million and $19.3 million for the quarter and three quarters ended September 25, 2022, respectively.

As of September 24, 2023 and December 25, 2022, the fair value of long-term debt approximates the carrying value as it is variable rate debt. The fair value measurement of this debt is considered Level 2 of the fair value hierarchy as inputs to interest are observable, unadjusted quoted prices in active markets for similar assets or liabilities.

The 2023 Credit Agreement is guaranteed by all domestic subsidiaries of the Borrower (subject to customary exceptions) and secured by liens on substantially all of the assets of Holdings, the Borrower and the subsidiary guarantors (subject to customary exceptions).

The 2023 Credit Agreement also includes certain financial covenants with respect to cash interest coverage and total net rent adjusted leverage. As of September 24, 2023, the Company was in compliance with all covenants in the 2023 Credit Agreement.

Portillo's Inc. Form 10-Q | 16

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 9.    LEASES

We qualify as an emerging growth company pursuant to the provisions of the Jumpstart our Business Startups ("JOBS") Act. As such, we adopted ASU 2016-02, Leases (Topic 842), along with related clarifications and improvements, using a modified retrospective approach, with first presentation of the application of ASC 842 in our Annual Report on Form 10-K for the fiscal year ended December 25, 2022. Quarterly interim financial statements for 2023 are presented under ASC 842. Quarterly interim financial statements were not required in 2022 under prior lease accounting guidance, therefore comparative amounts are not presented for those periods.

A summary of operating lease right-of-use assets and liabilities is as follows (in thousands):

Operating leases	Classification	September 24, 2023		December 25, 2022
Right-of-use assets	Operating lease assets	$	191,488	$	166,808
		191,488		166,808
Current lease liabilities	Short-term operating lease liability	5,048		4,849
Non-current lease liabilities	Long-term operating lease liability	234,699		200,166
		$	239,747	$	205,015

The components of lease expense were as follows (in thousands):

		Quarter Ended		Three Quarters Ended
Operating leases	Classification	September 24, 2023		September 24, 2023
Operating lease cost	Occupancy Other operating expenses General and administrative expenses Pre-opening expenses	$	7,325	$	21,160
Short-term operating lease cost	Occupancy Other operating expenses	202		534
Variable lease cost	Occupancy Other operating expenses General and administrative expenses	751		2,773
		$	8,278	$	24,467

A summary of lease terms and discount rates for operating leases is as follows:

Operating leases	September 24, 2023		December 25, 2022
Weighted-average remaining lease term (years):	25.6		25.0
Weighted-average discount rate:	9.7	%	9.8	%

Supplemental cash flow information related to leases is as follows (in thousands):

	Quarter Ended		Three Quarters Ended
	September 24, 2023		September 24, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	5,909	$	17,490
Operating lease assets obtained in exchange for lease liabilities:
Operating leases	14,006		29,103

Portillo's Inc. Form 10-Q | 17

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

As of September 24, 2023, the maturity analysis of the lease liabilities consisted of the following (in thousands):

Year Ending	Operating Leases
2023 (excluding the three quarters ended September 24, 2023)	$	6,153
2024	25,814
2025	25,902
2026	25,986
2027	25,265
Thereafter	626,740
Total lease payments	735,860
Less: imputed interest	(496,113)
Total operating lease liabilities	$	239,747

As of September 24, 2023, operating lease payments include $433.5 million related to options to extend lease terms that are reasonably certain of being exercised and exclude $32.2 million of minimum payments for leases signed but not yet commenced.

NOTE 10.    NON-CONTROLLING INTERESTS

We are the sole managing member of Portillo's OpCo, and as a result, consolidate the financial results of Portillo's OpCo. We report a non-controlling interest representing the LLC Units in Portillo's OpCo held by pre-IPO LLC Members. Changes in our ownership interest in Portillo's OpCo while we retain our controlling interest in Portillo's OpCo will be accounted for as equity transactions. As such, future redemptions or direct exchanges of LLC Units in Portillo's OpCo by the pre-IPO LLC members will result in a change in ownership and reduce the amount recorded as non-controlling interest and increase additional paid-in capital.

In the first and second quarters of 2023, in connection with the Q1 Secondary Offering and Overallotment Option described in Note 1. Description Of Business, 6,350,717 of LLC Units and corresponding shares of Class B common stock were redeemed, respectively, by the pre-IPO LLC Members for newly-issued shares of Class A common stock. We received a total of 6,350,717 newly-issued LLC Units, increasing our total ownership interest in Portillo's OpCo.

The following table summarizes the LLC interest ownership by Portillo's Inc. and pre-IPO LLC members:

	September 24, 2023			December 25, 2022
	LLC Units	Ownership %		LLC Units	Ownership %
Portillo's Inc.	55,182,141	76.0	%	48,420,723	67.0	%
pre-IPO LLC Members	17,472,926	24.0	%	23,837,162	33.0	%
Total	72,655,067	100.0	%	72,257,885	100.0	%

The weighted average ownership percentages for the applicable reporting periods are used to attribute net income to Portillo's Inc. and the pre-IPO LLC Members. The pre-IPO LLC Members' weighted average ownership percentage for the quarter and three quarters ended September 24, 2023 was 24.1% and 26.6%, respectively. The pre-IPO LLC Members' weighted average ownership percentage for the quarter and three quarters ended September 25, 2022 was 45.9% and 48.5%, respectively.

Portillo's Inc. Form 10-Q | 18

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The following table summarizes the effects of changes in ownership in Portillo's OpCo on the Company’s equity (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Net income attributable to Portillo's Inc.	$	4,361	$	1,592	$	10,635	$	6,897
Activity under equity-based compensation plans	400		271		1,688		1,718
Non-controlling interest adjustment	218		43,811		48,063		44,533
Redemption of LLC Units	—		(59)		(64)		(59)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	—		—		(13,682)		—
Total effect of changes in ownership interest on equity attributable to Portillo's Inc.	$	4,979	$	45,615	$	46,640	$	53,089

NOTE 11.    EQUITY-BASED COMPENSATION

Equity-based compensation expense is calculated based on equity awards ultimately expected to vest and is reduced for estimated forfeitures. Forfeitures are revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates and an adjustment to equity-based compensation expense will be recognized at that time.

Equity-based compensation expense included in the Company’s consolidated statements of operations is as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Labor	$	379	$	331	$	1,164	$	1,020
General and administrative expenses	3,945		3,367		10,880		10,327
Total equity-based compensation expense	$	4,324	$	3,698	$	12,044	$	11,347

Portillo's Inc. Form 10-Q | 19

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

During the quarter ended September 24, 2023, we granted 10,376 restricted stock units (“RSUs”) under the Portillo's Inc. 2021 Equity Incentive Plan (the "2021 Plan") to certain employees. During the three quarters ended September 24, 2023, under the 2021 Plan, we granted 247,188 RSUs to certain employees and 56,488 RSUs to directors. The weighted average fair value of these awards was determined using the Company's closing stock price on the applicable grant dates, which was $20.51. The RSUs granted to employees will vest one-third on each of the first three anniversaries of the date of grant subject to continued service on such date. The RSUs granted to non-employee directors will vest at the end of this fiscal year.

During the quarter ended September 24, 2023, we also granted 52,173 performance stock options (PSOs) under the 2021 Equity Incentive Plan to a certain executive officer. The grant date fair value of these awards of $2.30 was determined using a Monte Carlo simulation model. The awards are eligible to vest in three (3) tranches based on stock performance conditions: (i) one-third (1/3rd) of the PSOs will vest on the third anniversary of the IPO if the 20-day volume-weighted average price ("VWAP") for a share of common stock is $30.00 per share (1.5 times the IPO price) measured over any twenty (20) consecutive trading day period commencing on the second anniversary of the IPO and ending on the last trading day immediately preceding the third anniversary IPO; (ii) one-third (1/3rd) of the PSOs will vest on the fourth anniversary of the IPO if the 20-day VWAP for a share of common stock is $40.00 per share (2 times the IPO price) measured over any twenty (20) consecutive trading day period commencing on the third anniversary of the IPO and ending on the last trading day immediately preceding the fourth anniversary of the IPO; and (iii) one-third (1/3rd) of the PSOs will vest on the fifth anniversary of the IPO if the 20-day VWAP for a share of common stock is $50.00 per share (2.5 times the IPO price) measured over any twenty (20) consecutive trading day period commencing on the fourth anniversary of the IPO and ending on the last trading day immediately preceding the fifth anniversary of the IPO. All PSOs are subject to continued service on the vesting date of each tranche date and if any tranches fail to vest, the unvested portion of such PSOs will be forfeited and will not be eligible to vest in subsequent years. Once vested, the PSOs are exercisable within a 10-year period from the date of grant.

Employee Stock Purchase Plan

During the quarter and three quarters ended September 24, 2023, the Company issued 6,196 and 21,210 shares, respectively, under the Employee Stock Purchase Plan ("ESPP"). The shares issued under the ESPP are net of shares withheld for taxes. At September 24, 2023, 220,782 shares remained available for issuance under the ESPP. The expense incurred under the ESPP was immaterial for the quarter and three quarters ended September 24, 2023 and is included within general and administrative expenses and labor in the condensed consolidated statements of operations.

NOTE 12.    INCOME TAXES

We are the sole managing member of Portillo's OpCo, and as a result, consolidate the financial results of Portillo's OpCo. Portillo's OpCo is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, Portillo's OpCo is not subject to U.S. federal and state and local income taxes in the majority of states in which it operates. Any taxable income or loss generated by Portillo's OpCo is passed through to and included in the taxable income or loss of its members, including us, based upon the respective member's ownership percentage in Portillo's OpCo. 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 Portillo's OpCo, as well as any stand-alone income or loss generated by Portillo's Inc.

Income Tax Expense

The effective income tax rate for the quarter and three quarters ended September 24, 2023 was 28.6% and 19.2%, and 23.9% and 19.5% for the quarter and three quarters ended September 25, 2022, respectively. The increase in our effective income tax rate for the quarter ended September 24, 2023 compared to the quarter ended September 25, 2022 was primarily driven by an increase in the Company's ownership interest in Portillo's OpCo, which increases its share of taxable income (loss) of Portillo's OpCo. The decrease in our effective income tax rate for the three quarters ended September 24, 2023 compared to the three quarters ended September 25, 2022 was primarily driven by the recording of net operating loss carryforwards. The Company’s annual effective tax rate differs from the statutory rate of 21% primarily because the Company is not liable for federal or state income taxes on the portion of Portillo's OpCo’s earnings that are attributable to non-controlling interests, deferred tax adjustments and impacts from equity-based award activity.

Portillo's Inc. Form 10-Q | 20

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

We evaluate the realizability of our deferred tax assets on a quarterly basis and establish 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 September 24, 2023, the Company concluded, based on the weight of all available positive and negative evidence, that all of its deferred tax assets (except for those deferred tax assets relating to the basis difference in its investment in Portillo's OpCo that will never be realizable or only reverse upon the eventual sale of its interest in Portillo's OpCo, which we expect would result in a capital loss which we do not expect to be able to utilize) are more likely than not to be realized.

Secondary Offerings

In the first and second quarters of 2023, in connection with the Q1 Secondary Offering and Overallotment Option previously discussed in Note 1. Description Of Business, 6,350,717 LLC Units were redeemed by the pre-IPO LLC Members for newly-issued shares of Class A common stock. As a result, an increase in the tax basis of net assets of Portillo's OpCo subject to the provisions of the Tax Receivable Agreement (the "Tax Receivable Agreement" or "TRA") was recorded. The Company recorded a deferred tax asset of $37.5 million and an additional TRA liability of $51.2 million. As of September 24, 2023, we estimated that our obligation for future payments under the TRA liability totaled $301.5 million. The Company made payments of $0.8 million under the TRA during the three quarters ended September 24, 2023 relating to tax year 2021. There were no amounts paid under the TRA during the quarter ended September 24, 2023 and the quarter and three quarters ended September 25, 2022. We expect a payment of $6.5 million relating to tax year 2022 to be paid within the next 12 months.

NOTE 13.    EARNINGS PER SHARE

Basic net earnings per share of Class A common stock is computed by dividing net income attributable to Portillo's Inc. by the weighted-average number of Class A common stock outstanding.

Diluted net earnings per share is computed by dividing net income attributable to Portillo's Inc. by the weighted-average number of dilutive securities, using the treasury stock method.

The computations of basic and diluted earnings per share for the quarters and three quarters ended September 24, 2023 and September 25, 2022 are as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Net income	$	6,546	$	3,198	$	15,171	$	14,504
Net income attributable to non-controlling interests	2,185		1,606		4,536		7,607
Net income attributable to Portillo's Inc.	$	4,361	$	1,592	$	10,635	$	6,897
Shares:
Weighted-average number of common shares outstanding-basic	55,127		38,899		53,231		36,899
Dilutive share awards	3,641		3,726		3,583		3,887
Weighted-average number of common shares outstanding-diluted	58,768		42,625		56,814		40,786
Basic net income per share	$	0.08	$	0.04	$	0.20	$	0.19
Diluted net income per share	$	0.07	$	0.04	$	0.19	$	0.17

The following shares were excluded from the calculation of diluted earnings per share because they would be antidilutive (in thousands):

	Quarter Ended		Three Quarters Ended
	September 24, 2023	September 25, 2022	September 24, 2023	September 25, 2022
Shares subject to performance conditions	1,860	1,862	1,860	1,862
Shares that were antidilutive	5	14	5	—
Total shares excluded from diluted net income per share	1,865	1,876	1,865	1,862

Portillo's Inc. Form 10-Q | 21

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 14.    CONTINGENCIES

The Company is party to legal proceedings and potential claims arising in the normal conduct of business, including claims related to employment matters, contractual disputes, customer injuries, and property damage. Although the ultimate outcome of these claims and lawsuits cannot be predicted with certainty, management believes that the resulting liability, if any, will not have a material effect on the Company’s condensed consolidated financial statements.

NOTE 15.    RELATED PARTY TRANSACTIONS

As of both September 24, 2023 and December 25, 2022, the related parties’ receivables balance consisted of $0.3 million due from C&O, which is included in accounts and tenant improvement receivable in the condensed consolidated balance sheets.

Olo, Inc.

Noah Glass, a member of the Company's Board, is the founder and CEO of Olo, Inc. ("Olo"), a platform the Company uses in connection with our mobile ordering application and delivery.

The Company incurred the following Olo-related costs for the quarter and three quarters ended September 24, 2023 and September 25, 2022 (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Food, beverage and packaging costs	$	462	$	566	$	1,525	$	1,449
Other operating expenses	101		111		327		326
Net Olo-related costs	$	563	$	677	$	1,852	$	1,775

As of September 24, 2023 and December 25, 2022, $0.1 million and $0.2 million, respectively, were payable to Olo and was included in accounts payable in the condensed consolidated balance sheets.

Tax Receivable Agreement

We are party to a TRA with certain members of Portillo's OpCo that provides for the payment by us of 85% of the amount of tax benefits, if any, that Portillo's Inc. actually realizes or in some cases is deemed to realize as a result of certain transactions. The Company made payments of $0.8 million under the TRA relating to tax year 2021 during the three quarters ended September 24, 2023. There were no amounts paid under the TRA during the quarter ended September 24, 2023 and quarter and three quarters ended September 25, 2022.

(in thousands)	September 24, 2023		December 25, 2022
Current portion of Tax Receivable Agreement liability	$	6,527	$	813
Tax receivable agreement liability	294,950		252,003

Secondary Offerings

In connection with the secondary offerings previously discussed in Note 1. Description Of Business, we purchased LLC Units and corresponding shares of Class B common stock and shares of Class A common stock using the proceeds of the secondary offerings at a price equal to the public offering price less the underwriting discounts and commissions from certain pre-IPO LLC Members and shareholders of the Blocker Companies, including from funds affiliated with Berkshire Partners LLC, which is our largest shareholder that beneficially owns approximately 30.7% of the Company as of September 24, 2023.

Portillo's Inc. Form 10-Q | 22

PORTILLO'S INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 16.    SUBSEQUENT EVENTS

On September 29, 2023 the Company borrowed $7.0 million under the 2023 Revolver Facility. The interest rate on the Revolver Facility is 8.17%. As a result, as of September 29, 2023, the outstanding balance of the 2023 Revolver Facility upon borrowing is $7.0 million and $88.7 million is available to the Company under the 2023 Revolver Facility.

The Company opened one restaurant subsequent to September 24, 2023 for a total of 78 restaurants, excluding C&O. The restaurant is located in Cicero, Illinois.

Portillo's Inc. Form 10-Q | 23

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion contains, in addition to historical information, forward-looking statements that include risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of certain factors, including those set forth under the heading “Cautionary Statements Concerning Forward-Looking Statements” in this report and under the heading “Risk Factors” in Part I, Item IA of our Annual Report on Form 10-K for the fiscal year ended December 25, 2022 and Part II, Item 1A of this Form 10-Q. The following discussion should be read in conjunction with our Annual Report on Form 10-K for the fiscal year ended December 25, 2022 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.

Although we believe that the expectations reflected in the forward-looking statements are reasonable based on our current knowledge of our business and operations, we cannot guarantee future results, levels of activity, performance or achievements. We assume no obligation to provide revisions to any forward-looking statements should circumstances change.

The following discussion summarizes the significant factors affecting the condensed consolidated operating results, financial condition, liquidity and cash flows of our company as of and for the periods presented below.

We have prepared the unaudited condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial statements and pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC").

Overview

Portillo’s serves iconic Chicago street food through high-energy, multichannel restaurants designed to ignite the senses and create a memorable dining experience. Since our founding in 1963 in a small trailer which Dick Portillo called “The Dog House,” we have grown to become a treasured brand with a passionate (some might say obsessed) nationwide following. We create a consumer experience like no other by combining the best attributes of fast casual and quick service concepts with an exciting, energy-filled atmosphere and restaurant model capable of generating tremendous volumes. Nearly all of our restaurants were built with double lane drive-thrus and have been thoughtfully designed with a layout that accommodates a variety of access modes including dine-in, carryout, delivery, and catering in order to quickly and efficiently serve our guests. No matter how our guests order from us, our highly productive kitchens and team members consistently serve high quality food and deliver a memorable guest experience. We believe the combination of our craveable food, multichannel sales model, dedication to operational excellence, and a distinctive culture driven by our team members gives us a competitive advantage.

As of September 24, 2023, we owned and operated 78 Portillo’s restaurants across ten states, including a restaurant owned by C&O Chicago, L.L.C. ("C&O") of which Portillo’s owns 50% of the equity.

Portillo's Inc. Form 10-Q | 24

Financial Highlights for the Quarter Ended September 24, 2023 vs. Quarter Ended September 25, 2022:

•Total revenue increased 10.4% or $15.7 million to $166.8 million;

•Same restaurant sales increased 3.9%;

•Operating income increased $4.5 million to $15.1 million;

•Net income increased $3.3 million to $6.5 million;

•Restaurant-Level Adjusted EBITDA* increased $7.8 million to $41.9 million; and

•Adjusted EBITDA* increased $5.7 million to $27.3 million.

Financial Highlights for the Three Quarters Ended September 24, 2023 vs. Three Quarters Ended September 25, 2022:

•Total revenue increased 12.8% or $55.8 million to $492.0 million;

•Same restaurant sales increased 6.1%;

•Operating income increased $6.1 million to $41.0 million;

•Net income increased $0.7 million to $15.2 million;

•Restaurant-Level Adjusted EBITDA* increased $19.0 million to $119.4 million; and

•Adjusted EBITDA* increased $9.3 million to $76.1 million.

* Adjusted EBITDA and Restaurant-Level Adjusted EBITDA are non-GAAP measures. Definitions and reconciliations of Adjusted EBITDA to net (loss) income and Restaurant-Level Adjusted EBITDA to operating income the most directly comparable financial measures presented in accordance with GAAP, are set forth under the section "Key Performance Indicators and Non-GAAP Financial Measures".

Recent Developments and Trends

In the quarter ended September 24, 2023, we saw continued revenue growth and same restaurant sales growth. Total revenue grew 10.4% during the quarter ended September 24, 2023 and 12.8% for the three quarters ended September 24, 2023. Same-restaurant sales grew 3.9% during the quarter ended September 24, 2023, compared to 5.8% same-restaurant sales growth during the same quarter in 2022. Same-restaurant sales grew 6.1% during the three quarters ended September 24, 2023, compared to 5.2% same-restaurant sales growth during the three quarters ended September 25, 2022.

We believe unit growth is a key driver of shareholder value creation. During the quarter ended September 24, 2023, we opened two new restaurants, one restaurant in Arizona and our second location in Texas for a total of 78 restaurants, including a restaurant owned by C&O, of which Portillo's owns 50% of the equity. The one restaurant opened in the fourth quarter of 2022 and six restaurants opened during the three quarters ended September 24, 2023 positively impacted revenues by approximately $11.0 million and $31.5 million in the quarter and three quarters ended September 24, 2023, respectively. We opened one restaurant subsequent to September 24, 2023 and plan to open five additional restaurants in the fourth quarter of 2023.

In the quarter and three quarters ended September 24, 2023, we continued to see commodity inflation stabilize. Commodity inflation was 3.5% and 5.8% for the quarter and three quarters ended September 24, 2023, respectively, compared to 15.4% for both the quarter and three quarters ended September 25, 2022. For the quarter and three quarters ended September 24, 2023, we experienced a decline in labor expenses, as a percentage of revenue, compared to the quarter and three quarters ended September 25, 2022 primarily due to increases in revenue, partially offset by higher labor utilization and additional wage investments. During mid-January 2023 and at the beginning of May 2023, we increased certain menu prices to reflect a net approximate 2.0% and 3.0% price increase, respectively, to continue to combat inflationary cost pressures and progress towards our goal to improve Restaurant-Level Adjusted EBITDA margins for fiscal 2023. We will continue to monitor our cost pressures, the competitive landscape, and consumer sentiment to inform our pricing decisions in the coming quarters.

In the quarter ended September 24, 2023, operating income margin and Restaurant-Level Adjusted EBITDA Margin improved versus prior year. We believe this improvement was the result of our ongoing efforts to deploy strategic pricing actions in prior quarters, elevate guest experiences, and implement operational efficiencies. The strength of our brand, the consistency of our operations, and the ongoing execution of a disciplined development strategy all support our business model. Further, we intend to continue to develop shareholder value through self-funded restaurant development and an ongoing focus on operations.

Portillo's Inc. Form 10-Q | 25

Development Highlights

During the three quarters ended September 24, 2023, we opened a total of six restaurants in the Arizona, Florida, and Texas markets. Subsequent to September 24, 2023, we opened one additional restaurant, bringing our total restaurant count to 79, including a restaurant owned by C&O of which Portillo’s owns 50% of the equity.

Below are the restaurants opened since the beginning of fiscal 2023:

Location	Opening Date
Kissimmee, Florida	December 2022
The Colony, Texas	January 2023
Tucson, Arizona	February 2023
Gilbert, Arizona	March 2023
Queen Creek, Arizona	August 2023
Allen, Texas	August 2023
Cicero, Illinois	October 2023

Portillo's Inc. Form 10-Q | 26

Consolidated Results of Operations

The following table summarizes our results of operations for the quarter and three quarters ended September 24, 2023 and September 25, 2022 (in thousands):

	Quarter Ended								Three Quarters Ended
	September 24, 2023				September 25, 2022				September 24, 2023				September 25, 2022
REVENUES, NET	$	166,805	100.0	%	$	151,121	100.0	%	$	492,047	100.0	%	$	436,226	100.0	%
COST AND EXPENSES:
Restaurant operating expenses:
Food, beverage and packaging costs	55,551		33.3	%	53,374		35.3	%	165,407		33.6	%	151,414		34.7	%
Labor	42,588		25.5	%	39,133		25.9	%	126,200		25.6	%	114,352		26.2	%
Occupancy	8,210		4.9	%	7,644		5.1	%	24,898		5.1	%	22,778		5.2	%
Other operating expenses	18,571		11.1	%	16,882		11.2	%	56,107		11.4	%	47,225		10.8	%
Total restaurant operating expenses	124,920		74.9	%	117,033		77.4	%	372,612		75.7	%	335,769		77.0	%
General and administrative expenses	18,898		11.3	%	18,059		12.0	%	57,285		11.6	%	49,185		11.3	%
Pre-opening expenses	2,410		1.4	%	791		0.5	%	5,029		1.0	%	1,770		0.4	%
Depreciation and amortization	6,178		3.7	%	5,289		3.5	%	17,788		3.6	%	15,803		3.6	%
Net income attributable to equity method investment	(422)		(0.3)	%	(409)		(0.3)	%	(1,010)		(0.2)	%	(807)		(0.2)	%
Other income, net	(276)		(0.2)	%	(228)		(0.2)	%	(630)		(0.1)	%	(333)		(0.1)	%
OPERATING INCOME	15,097		9.1	%	10,586		7.0	%	40,973		8.3	%	34,839		8.0	%
Interest expense	6,573		3.9	%	7,090		4.7	%	20,539		4.2	%	19,286		4.4	%
Interest income	(116)		(0.1)	%	—		—	%	(116)		—	%	—		—	%
Tax Receivable Agreement liability adjustment	(528)		(0.3)	%	(708)		(0.5)	%	(1,691)		(0.3)	%	(2,462)		(0.6)	%
Loss on debt extinguishment	—		—	%	—		—	%	3,465		0.7	%	—		—	%
INCOME BEFORE INCOME TAXES	9,168		5.5	%	4,204		2.8	%	18,776		3.8	%	18,015		4.1	%
Income tax expense	2,622		1.6	%	1,006		0.7	%	3,605		0.7	%	3,511		0.8	%
NET INCOME	6,546		3.9	%	3,198		2.1	%	15,171		3.1	%	14,504		3.3	%
Net income attributable to non-controlling interests	2,185		1.3	%	1,606		1.1	%	4,536		0.9	%	7,607		1.7	%
NET INCOME ATTRIBUTABLE TO PORTILLO'S INC.	$	4,361	2.6	%	$	1,592	1.1	%	$	10,635	2.2	%	$	6,897	1.6	%

Revenues, Net

Revenues primarily represent the aggregate sales of food and beverages, net of discounts. Sales taxes collected from customers are excluded from revenues. Revenues in any period are directly influenced by the number of operating weeks in the period, the number of open restaurants, restaurant traffic, our menu prices, third-party delivery platform prices and product mix.

Revenues for the quarter ended September 24, 2023 were $166.8 million compared to $151.1 million for the quarter ended September 25, 2022, an increase of $15.7 million or 10.4%. The increase in revenues was primarily attributed to the opening of one restaurant in the fourth quarter of 2022 and six restaurants during the three quarters ended September 24, 2023 combined with an increase in our same-restaurant sales. New restaurants positively impacted revenues by approximately $11.0 million in the quarter ended September 24, 2023. Same-restaurant sales increased 3.9% during the third quarter ended September 24, 2023, which was attributable to an increase in average check of 7.4%, partially offset by a 3.5% decrease in transactions. The higher average check was driven by an approximate 9.1% increase in certain menu prices partially offset by product mix. For the purpose of calculating same-restaurant sales for September 24, 2023, sales for the 66 restaurants that were open for at least 24 full fiscal periods were included in the Comparable Restaurant Base (as defined in "Selected Operating Data" below).

Portillo's Inc. Form 10-Q | 27

Revenues for the three quarters ended September 24, 2023 were $492.0 million compared to $436.2 million for the three quarters ended September 25, 2022, an increase of $55.8 million or 12.8%. The increase in revenues was primarily attributed to the opening of three restaurants in 2022 and six restaurants during the three quarters ended September 24, 2023 combined with an increase in our same-restaurant sales. The new restaurants positively impacted revenues by approximately $31.5 million in the three quarters ended September 24, 2023. Same-restaurant sales increased 6.1% during the three quarters ended September 24, 2023, which was attributable to an increase in average check of 7.1% and partially offset by a 1.0% decrease in transactions. The higher average check was primarily driven by an approximate 9.4% increase in menu prices partially offset by product mix. During mid-January 2023 and at the beginning of May 2023, we increased certain menu prices to reflect an approximate 2.0% and 3.0% price increase, respectively, to continue to combat inflationary cost pressures and progress towards our goal to improve Restaurant-Level Adjusted EBITDA margins for fiscal 2023. For the purpose of calculating same-restaurant sales for September 24, 2023, sales for the 66 restaurants that were open for at least 24 full fiscal periods were included in the Comparable Restaurant Base.

Food, Beverage and Packaging Costs

Food, beverage and packaging costs include the direct costs associated with food and beverages, including paper products and third-party delivery commissions. The components of food, beverage and packaging costs are variable by nature, change with sales volume, are impacted by product mix and are subject to increases or decreases in commodity costs.

Food, beverage and packaging costs for the quarter ended September 24, 2023 was $55.6 million compared to $53.4 million for the quarter ended September 25, 2022, an increase of $2.2 million or 4.1%. This increase was primarily driven by a 3.5% increase in commodity prices and the opening of one restaurant in the fourth quarter of 2022 and six restaurants during the three quarters ended September 24, 2023, partially offset by lower third-party delivery commissions. As a percentage of revenues, net, food, beverage and packaging costs decreased 2.0% during the quarter ended September 24, 2023. The decrease was primarily due to an increase in average check and lower third-party delivery commissions, partially offset by an increase in certain commodity prices.

Food, beverage and packaging costs for the three quarters ended September 24, 2023 was $165.4 million compared to $151.4 million for the three quarters ended September 25, 2022, an increase of $14.0 million or 9.2%. This increase was primarily driven by a 5.8% increase in commodity prices and the opening of three restaurants in 2022 and six restaurants during the three quarters ended September 24, 2023, partially offset by lower third-party delivery commissions. As a percentage of revenues, net, food, beverage and packaging costs decreased 1.1% during the three quarters ended September 24, 2023. The decrease was primarily due to an increase in average check and lower third-party delivery commissions, partially offset by an increase in certain commodity prices.

Labor Expenses

Labor expenses include hourly and management wages, bonuses and equity-based compensation, payroll taxes, workers’ compensation expense, and team member benefits. Factors that influence labor costs include wage inflation and payroll tax legislation, health care costs and the staffing needs of our restaurants.

Labor expenses for the quarter ended September 24, 2023 were $42.6 million compared to $39.1 million for the quarter ended September 25, 2022, an increase of $3.5 million or 8.8%. This increase was primarily driven by the opening of one restaurant in the fourth quarter of 2022 and six restaurants during the three quarters ended September 24, 2023, and incremental investments to support our team members, including annual rate increases, and higher variable-based compensation. As a percentage of revenues, net, labor decreased 0.4% primarily due to increase in our average check, partially offset by lower transactions, higher labor utilization, and the aforementioned incremental wage rate increases to support our team members.

Labor expenses for the three quarters ended September 24, 2023 were $126.2 million compared to $114.4 million for the three quarters ended September 25, 2022, an increase of $11.8 million or 10.4%. This increase was primarily driven by the opening of three restaurants in 2022 and six restaurants during the three quarters ended September 24, 2023, incremental investments to support our team members, including annual rate increases, and higher variable-based compensation. As a percentage of revenues, net, labor decreased 0.6% primarily due to an increase in our average check, partially offset by lower transactions, the aforementioned incremental hourly rate increases to support our team members and higher labor utilization.

Portillo's Inc. Form 10-Q | 28

Occupancy Expenses

Occupancy expenses primarily consist of rent, property insurance and property taxes.

Occupancy expenses for the quarter ended September 24, 2023 were $8.2 million compared to $7.6 million for the quarter ended September 25, 2022, an increase of $0.6 million or 7.4%, primarily driven by the opening of one restaurant in the fourth quarter of 2022 and six restaurants during the three quarters ended September 24, 2023. As a percentage of revenues, net, occupancy expenses decreased 0.2% primarily due to an increase in our average check.

Occupancy expenses for the three quarters ended September 24, 2023 were $24.9 million compared to $22.8 million for the three quarters ended September 25, 2022, an increase of $2.1 million or 9.3%, primarily driven by the opening of three restaurants in 2022 and six restaurants during the three quarters ended September 24, 2023. As a percentage of revenues, net, occupancy expenses decreased 0.2% primarily due to an increase in our average check.

Other Operating Expenses

Other operating expenses consist of direct marketing expenses, utilities and other operating expenses incidental to operating our restaurants, such as credit card fees and repairs and maintenance.

Other operating expenses for the quarter ended September 24, 2023 were $18.6 million compared to $16.9 million for the quarter ended September 25, 2022, an increase of $1.7 million or 10.0%, primarily due to the opening of one restaurant in the fourth quarter of 2022 and six restaurants during the three quarters ended September 24, 2023 and an increase in credit card fees, utilities, and insurance. As a percentage of revenues, net, operating expenses decreased 0.1% due primarily to an increase in our average check.

Other operating expenses for the three quarters ended September 24, 2023 were $56.1 million compared to $47.2 million for the three quarters ended September 25, 2022, an increase of $8.9 million or 18.8%, primarily due to an increase in credit card fees, utilities, repair and maintenance expenses, insurance, and operating supplies, and the opening of three restaurants in 2022 and six restaurants during the three quarters ended September 24, 2023. As a percentage of revenues, net, operating expenses increased 0.6% due primarily to the aforementioned increases in expenses, partially offset by an increase in our average check.

General and Administrative Expenses

General and administrative expenses primarily consist of costs associated with our corporate and administrative functions that support restaurant development and operations, including marketing and advertising costs incurred as well as legal and professional fees. General and administrative expenses also include equity-based compensation expense. General and administrative expenses are impacted by changes in our team member count and costs related to strategic and growth initiatives.

General and administrative expenses for the quarter ended September 24, 2023 were $18.9 million compared to $18.1 million for the quarter ended September 25, 2022, an increase of $0.8 million or 4.6%. This increase was primarily driven by increases in salaries, wages and benefits attributable to annual rate increases and the filling of open positions, partially offset by a decrease in professional fees and insurance expenses.

General and administrative expenses for the three quarters ended September 24, 2023 were $57.3 million compared to $49.2 million for the three quarters ended September 25, 2022, an increase of $8.1 million or 16.5%. This increase was primarily driven by increases in salaries, wages and benefits attributable to annual rate increases and the filling of open positions, higher variable-based compensation, higher professional and licensing fees, partially offset by a decrease in insurance expenses.

Pre-Opening Expenses

Pre-opening expenses consist primarily of wages, occupancy expenses, which represent rent expense recognized during the period between the date of possession of the restaurant facility and the restaurant opening date, travel for the opening team and other supporting team members, food, beverage, and the initial stocking of operating supplies. All such costs incurred prior to the opening are expensed in the period in which the expense was incurred. Pre-opening expenses can fluctuate significantly from period to period, based on the number and timing of openings and the specific pre-opening expenses incurred for each restaurant. Additionally, restaurant openings in new geographic market areas will experience higher pre-opening expenses than our established geographic market areas, such as the Chicagoland area, where we have greater economies of scale and incur lower travel and lodging costs for our training team.

Portillo's Inc. Form 10-Q | 29

Pre-opening expenses for the quarter ended September 24, 2023 were $2.4 million compared to $0.8 million for the quarter ended September 25, 2022, an increase of $1.6 million or 204.7%. The increase was due to the timing and geographic location of activities related to our planned restaurant openings for the quarter ended September 24, 2023 as compared to the quarter ended September 25, 2022.

Pre-opening expenses for the three quarters ended September 24, 2023 were $5.0 million compared to $1.8 million for the three quarters ended September 25, 2022, an increase of $3.3 million or 184.1%. This increase was due to the timing and geographic location of restaurant openings for the three quarters ended September 24, 2023 as compared to the three quarters ended September 25, 2022.

Depreciation and Amortization

Depreciation and amortization expenses consist of the depreciation of fixed assets, including leasehold improvements, fixtures and equipment and the amortization of definite-lived intangible assets, which are primarily comprised of recipes.

Depreciation and amortization expense for the quarter ended September 24, 2023 was $6.2 million compared to $5.3 million for the quarter ended September 25, 2022, an increase of $0.9 million or 16.8%. This increase was primarily attributable to incremental depreciation of capital expenditures related to the opening of one restaurant in the fourth quarter of 2022 and six restaurants during the three quarters ended September 24, 2023.

Depreciation and amortization expense for the three quarters ended September 24, 2023 was $17.8 million compared to $15.8 million for the three quarters ended September 25, 2022, an increase of $2.0 million or 12.6%. This increase was primarily attributable to incremental depreciation of capital expenditures related to the opening of three restaurants in 2022 and six restaurants during the three quarters ended September 24, 2023.

Net Income Attributable to Equity Method Investment

Net income attributable to equity method investment consists of a 50% interest in C&O, which runs a single restaurant located within the Chicagoland market. We account for the investment and financial results in the condensed consolidated financial statements under the equity method of accounting as we have significant influence but do not have control.

Net income attributable to equity method investment for both the quarter ended September 24, 2023 and the quarter ended September 25, 2022 was $0.4 million.

Net income attributable to equity method investment for the three quarters ended September 24, 2023 was $1.0 million compared to $0.8 million for the three quarters ended September 25, 2022, an increase of $0.2 million or 25.2%. This increase was primarily driven by increased revenue, which is attributable to an increase in average check, partially offset by a decrease in transactions.

Other Income, Net

Other income, net, includes among other items, income resulting from discounts received for timely filing of sales tax returns, management fee income associated with our investment in C&O, trading gains or losses on our deferred compensation plan and gains or losses on asset disposals.

Other income, net, for the quarter ended September 24, 2023 was $0.3 million compared to $0.2 million for the quarter ended September 25, 2022, an increase of $0.05 million or 21.1%. This increase was primarily due to a decrease in loss on sale of assets.

Other income, net, for the three quarters ended September 24, 2023 was $0.6 million compared to $0.3 million for the three quarters ended September 25, 2022, an increase of $0.3 million or 89.2%. This increase was primarily due to an increase in trading gains in the rabbi trust used to fund our deferred compensation plan, partially offset by an increase in loss on sale of assets.

Portillo's Inc. Form 10-Q | 30

Interest Expense

Interest expense primarily consists of interest and fees on our credit facilities and the amortization expense for debt discount and deferred issuance costs.

Interest expense for the quarter ended September 24, 2023 was $6.6 million compared to $7.1 million for the quarter ended September 25, 2022, a decrease of $0.5 million or 7.3%. This decrease was primarily driven by the improved lending terms associated with our 2023 Term Loan and 2023 Revolver Facility.

Interest expense for the three quarters ended September 24, 2023 was $20.5 million compared to $19.3 million for the three quarters ended September 25, 2022, an increase of $1.3 million or 6.5%. This increase was primarily driven by higher effective interest rates through the first three quarters of 2023 compared to the same period in 2022 attributable to the year over year rising interest rate environment, partially offset by the improved lending terms associated with our 2023 Term Loan and 2023 Revolver Facility.

Our effective interest rate was 8.50% and 8.84% as of September 24, 2023 and September 25, 2022, respectively.

Interest Income

Interest income primarily consists of interest earned on our cash and cash equivalents.

Interest income for the quarter and three quarters ended September 24, 2023 was $0.1 million. There was no interest income in the quarter and three quarters ended September 25, 2022.

Tax Receivable Agreement Liability Adjustment

We are party to a Tax Receivable Agreement liability with certain members of Portillo's OpCo that provides for the payment by us of 85% of the amount of tax benefits, if any, that Portillo's Inc. actually realizes or in some cases is deemed to realize as a result of certain transactions.

The tax receivable agreement liability adjustment was $0.5 million for the quarter ended September 24, 2023 and $1.7 million for the three quarters ended September 24, 2023 related to a remeasurement primarily due to activity under equity-based compensation plans. The tax receivable agreement liability adjustment, was $0.7 million and $2.5 million for the quarter and three quarters ended September 25, 2022, respectively.

Loss on Debt Extinguishment

Loss on debt extinguishment for the three quarters ended September 24, 2023 was $3.5 million due to the write-off of debt discount and deferred issuance costs of associated with the payoff of the 2014 Credit Agreement as described in Note 8. Debt. There was no loss on debt extinguishment for the quarter ended September 24, 2023 and the quarter and three quarters ended September 25, 2022.

Income Tax Expense

Portillo's OpCo is treated as a partnership for U.S. federal, as well as state and local income tax purposes and is not subject to taxes. Rather, any taxable income or loss generated by Portillo's OpCo is allocated to its members in relation to their respective ownership percentage of Portillo's OpCo. We are subject to U.S. federal, as well as state and local income taxes with respect to our allocable share of any taxable income or loss of Portillo's OpCo, as well as any stand-alone income or loss generated by Portillo's Inc.

Income tax expense for the quarter ended September 24, 2023 was $2.6 million compared to $1.0 million for the quarter ended September 25, 2022, an increase of $1.6 million or 160.6%. Our effective income tax rate for the quarter ended September 24, 2023 was 28.6%, compared to 23.9% for the quarter ended September 25, 2022. The increase in our effective income tax rate for the quarter ended September 24, 2023 compared to the quarter ended September 25, 2022 was primarily driven by an increase in the Company's ownership interest in Portillo's OpCo, which increases its share of taxable income (loss) of Portillo's OpCo.

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Income tax expense for the three quarters ended September 24, 2023 was $3.6 million compared to income tax expense of $3.5 million for the three quarters ended September 25, 2022, an increase of $0.1 million or 2.7%. Our effective income tax rate for the three quarters ended September 24, 2023 was 19.2%, compared to 19.5% for the three quarters ended September 25, 2022. The decrease in our effective income tax rate for the three quarters ended September 24, 2023 compared to the three quarters ended September 25, 2022 was primarily driven by the recording of net operating loss carryforwards.

Net Income Attributable to Non-controlling Interests

We are the sole managing member of Portillo's OpCo. We manage and operate the business and control the strategic decisions and day-to-day operations of Portillo’s OpCo and we also have a substantial financial interest in Portillo’s OpCo. Accordingly, we consolidate the financial results of Portillo’s OpCo, and a portion of our net income is allocated to non-controlling interests to reflect the entitlement of the pre-IPO LLC Members who retained their equity ownership in Portillo's OpCo (the "pre-IPO LLC Members"). The weighted average ownership percentages for the applicable reporting periods are used to attribute net income (loss) to Portillo's Inc. and the non-controlling interest holders.

Net income attributable to non-controlling interests for the quarter ended September 24, 2023 was $2.2 million, compared to net income attributable to non-controlling interests of $1.6 million for the quarter ended September 25, 2022, an increase of $0.6 million or 36.1%. The increase in net income attributable to non-controlling interests for the quarter ended September 24, 2023 was primarily due to an increase in net income compared to the quarter ended September 25, 2022, partially offset by a decrease in the non-controlling interest holders' weighted average ownership, from 45.9% for the quarter ended September 25, 2022 to 24.1% for the quarter ended September 24, 2023.

Net income attributable to non-controlling interests for the three quarters ended September 24, 2023 was $4.5 million, compared to net income attributable to non-controlling interest of $7.6 million for the three quarters ended September 25, 2022, a decrease of $3.1 million or 40.4%. The decrease in net income attributable to non-controlling interests for the three quarters ended September 24, 2023 was primarily due to a decrease in the non-controlling interest holders' weighted average ownership, from 48.5% for the three quarters ended September 25, 2022 to 26.6% for the three quarters ended September 24, 2023, partially offset by an increase in net income for the three quarters ended September 24, 2023 compared to the three quarters ended September 25, 2022.

Key Performance Indicators and Non-GAAP Financial Measures

In addition to the GAAP measures presented in our financial statements, we use the following key performance indicators and non-GAAP financial measures to evaluate our business, measure our performance, develop financial forecasts and make strategic decisions. These key measures include new restaurant openings, average unit volume ("AUV"), same-restaurant sales, Adjusted EBITDA, Adjusted EBITDA Margin, Restaurant-Level Adjusted EBITDA and Restaurant-Level Adjusted EBITDA Margin. The Company includes these measures because management believes that they are important to day-to-day operations and overall strategy and are useful to investors in that they provide for greater transparency with respect to supplemental information used by management in its financial and operational decision-making.

	Quarter Ended						Three Quarters Ended
	September 24, 2023			September 25, 2022			September 24, 2023			September 25, 2022
Total Restaurants (a)	78			71			78			71
AUV (in millions) (a)	N/A			N/A			$	8.9		$	8.4
Change in same-restaurant sales (b)	3.9		%	5.8		%	6.1		%	5.2		%
Adjusted EBITDA (in thousands) (b)	$	27,285		$	21,620		$	76,140		$	66,864
Adjusted EBITDA Margin (b)	16.4		%	14.3		%	15.5		%	15.3		%
Restaurant-Level Adjusted EBITDA (in thousands) (b)	$	41,885		$	34,088		$	119,435		$	100,457
Restaurant-Level Adjusted EBITDA Margin (b)	25.1		%	22.6		%	24.3		%	23.0		%

(a) Includes a restaurant that is owned by C&O, of which Portillo’s owns 50% of the equity. AUVs for the quarters ended September 24, 2023 and September 25, 2022 represent AUVs for the twelve months ended September 24, 2023 and September 25, 2022, respectively. Total restaurants indicated are as of a point in time.

(b) Excludes a restaurant that is owned by C&O of which Portillo’s owns 50% of the equity.

Portillo's Inc. Form 10-Q | 32

Change in Same-Restaurant Sales

The change in same-restaurant sales is the percentage change in year-over-year revenue (excluding gift card breakage) for the comparable restaurant base, which is defined as the number of restaurants open for at least 24 full fiscal periods (the “Comparable Restaurant Base”). For the three quarters ended September 24, 2023 and September 25, 2022, there were 66 and 61 restaurants in our Comparable Restaurant Base, respectively. The Comparable Restaurant Base excludes a restaurant that is owned by C&O, of which Portillo’s owns 50% of the equity.

A change in same-restaurant sales growth is the result of a change in restaurant transactions, average guest check, or a combination of the two. We gather daily sales data and regularly analyze the guest transaction counts and the mix of menu items sold to strategically evaluate menu pricing and demand. Measuring our same-restaurant sales growth allows management to evaluate the performance of our existing restaurant base. We believe this measure provides a consistent comparison of restaurant sales results and trends across periods within our core, established restaurant base, unaffected by results of restaurant openings and enables investors to better understand and evaluate the Company’s historical and prospective operating performance.

Average Unit Volume ("AUV")

AUV is the total revenue (excluding gift card breakage) recognized in the Comparable Restaurant Base, including C&O, divided by the number of restaurants in the Comparable Restaurant Base, including C&O, by period.

This key performance indicator allows management to assess changes in consumer spending patterns at our restaurants and the overall performance of our restaurant base.

Non-GAAP Financial Measures

To supplement the condensed consolidated financial statements, which are prepared and presented in accordance with GAAP, we use the following non-GAAP financial measures: Adjusted EBITDA and Adjusted EBITDA Margin, and Restaurant-Level Adjusted EBITDA and Restaurant-Level Adjusted EBITDA Margin. Accordingly, these measures are not required by, nor presented in accordance with GAAP, but rather are supplemental measures of operating performance of our restaurants. You should be aware that these measures are not indicative of overall results for the Company and that Restaurant-Level Adjusted EBITDA and Restaurant-Level Adjusted EBITDA Margin do not accrue directly to the benefit of stockholders because of corporate-level expenses excluded from such measures. These measures are supplemental measures of operating performance and our calculations thereof may not be comparable to similar measures reported by other companies. These measures are important measures to evaluate the performance and profitability of our restaurants, individually and in the aggregate, but also have important limitations as analytical tools and should not be considered in isolation as substitutes for analysis of our results as reported under GAAP.

Adjusted EBITDA and Adjusted EBITDA Margin

Adjusted EBITDA represents net income before depreciation and amortization, interest expense, interest income and income taxes, adjusted for the impact of certain non-cash and other items that we do not consider in our evaluation of ongoing core operating performance as identified in the reconciliation of net income, the most directly comparable GAAP measure to Adjusted EBITDA. Adjusted EBITDA Margin represents Adjusted EBITDA as a percentage of revenues, net.

We use Adjusted EBITDA and Adjusted EBITDA Margin (i) to evaluate our operating results and the effectiveness of our business strategies, (ii) internally as benchmarks to compare our performance to that of our competitors and (iii) as factors in evaluating management’s performance when determining incentive compensation.

We believe that Adjusted EBITDA and Adjusted EBITDA Margin are important measures of operating performance because they eliminate the impact of expenses that do not relate to our core operating performance.

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The following table reconciles net income to Adjusted EBITDA and Adjusted EBITDA margin (in thousands):

	Quarter Ended						Three Quarters Ended
	September 24, 2023			September 25, 2022			September 24, 2023			September 25, 2022
Net income	$	6,546		$	3,198		$	15,171		$	14,504
Depreciation and amortization	6,178			5,289			17,788			15,803
Interest expense	6,573			7,090			20,539			19,286
Interest income	(116)			—			(116)			—
Loss on debt extinguishment	—			—			3,465			—
Income tax expense	2,622			1,006			3,605			3,511
EBITDA	21,803			16,583			60,452			53,104
Deferred rent (1)	1,388			1,053			3,781			2,999
Equity-based compensation	4,324			3,698			12,044			11,347
ERP implementation costs (2)	149			—			149			—
Other loss (3)	16			114			511			239
Transaction-related fees & expenses (4)	133			880			894			1,637
Tax Receivable Agreement liability adjustment (5)	(528)			(708)			(1,691)			(2,462)
Adjusted EBITDA	$	27,285		$	21,620		$	76,140		$	66,864
Adjusted EBITDA Margin (6)	16.4		%	14.3		%	15.5		%	15.3		%

(1) Represents the difference between cash rent payments and the recognition of straight-line rent expense recognized over the lease term.

(2) Represents non-capitalized third party consulting and software licensing costs incurred in connection with the implementation of a new ERP system.

(3) Represents loss on disposal of property and equipment.

(4) Represents the exclusion of certain expenses that management believes are not indicative of ongoing operations, consisting primarily of certain professional fees.

(5) Represents remeasurement of the Tax Receivable Agreement liability.

(6) Adjusted EBITDA Margin is defined as Adjusted EBITDA divided by Revenues, net.

Restaurant-Level Adjusted EBITDA and Restaurant-Level Adjusted EBITDA Margin

Restaurant-Level Adjusted EBITDA is defined as revenue, less restaurant operating expenses, which include food, beverage and packaging costs, labor expenses, occupancy expenses and other operating expenses. Restaurant-Level Adjusted EBITDA excludes corporate level expenses and depreciation and amortization on restaurant property and equipment. Restaurant-Level Adjusted EBITDA Margin represents Restaurant-Level Adjusted EBITDA as a percentage of revenues, net.

We believe that Restaurant-Level Adjusted EBITDA and Restaurant-Level Adjusted EBITDA Margin are important measures to evaluate the performance and profitability of our restaurants, individually and in the aggregate.

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The following table reconciles operating income to Restaurant-Level Adjusted EBITDA and Restaurant-Level Adjusted EBITDA Margin (in thousands):

	Quarter Ended						Three Quarters Ended
	September 24, 2023			September 25, 2022			September 24, 2023			September 25, 2022
Operating income	$	15,097		$	10,586		$	40,973		$	34,839
Plus:
General and administrative expenses	18,898			18,059			57,285			49,185
Pre-opening expenses	2,410			791			5,029			1,770
Depreciation and amortization	6,178			5,289			17,788			15,803
Net income attributable to equity method investment	(422)			(409)			(1,010)			(807)
Other income, net	(276)			(228)			(630)			(333)
Restaurant-Level Adjusted EBITDA	$	41,885		$	34,088		$	119,435		$	100,457
Restaurant-Level Adjusted EBITDA Margin (1)	25.1		%	22.6		%	24.3		%	23.0		%

(1) Restaurant-Level Adjusted EBITDA Margin is defined as Adjusted EBITDA divided by Revenues, net

Liquidity and Capital Resources

Our primary sources of liquidity are cash from operations, cash and cash equivalents on hand, and availability under our 2023 Revolver Facility. As of September 24, 2023, we maintained a cash and cash equivalents and restricted cash balance of $12.9 million and had $95.7 million of availability under our 2023 Revolver Facility, after giving effect to $4.3 million in outstanding letters of credit. Subsequent to the quarter-end, on September 29, 2023, the Company borrowed $7.0 million under the 2023 Revolver Facility. As a result, as of September 29, 2023, the outstanding balance of the 2023 Revolver Facility upon borrowing is $7.0 million and $88.7 million is available to the Company under the 2023 Revolver Facility.

Our primary requirements for liquidity are to fund our working capital needs, operating lease obligations, capital expenditures, and general restaurant support center needs. Our requirements for working capital are not significant because our guests pay for their food and beverage purchases in cash or on debit or credit cards at the time of the sale and we are able to sell many of our inventory items before payment is due to the supplier of such items. Our ongoing capital expenditures are principally related to opening of new restaurants, existing capital investments (both for remodels and maintenance), as well as investments in our restaurant support center infrastructure.

Based upon current levels of operations and anticipated growth, we expect that cash flows from operations will be sufficient to meet our needs for at least the next twelve months, and the foreseeable future.

See Note 8. Debt for a discussion of the 2023 Credit Agreement, effective February 2, 2023.

Secondary Offering

In the first quarter of 2023, the Company completed a secondary offering of 8,000,000 shares of the Company's Class A common stock at an offering price of $21.05 per share. On April 5, 2023, the Underwriter exercised its overallotment option in part, to purchase an additional 620,493 shares of the Company's Class A common stock at an offering price of $21.05 per share (collectively the “Q1 Secondary Offering and Overallotment Option”). We used all of the net proceeds from the Q1 Secondary Offering and Overallotment Option to purchase LLC Units and corresponding shares of Class B common stock from certain pre-IPO LLC Members and to repurchase shares of Class A common stock from the shareholders of the Blocker Companies at a price per LLC Unit or share of Class A common stock, as applicable, equal to the public offering price per share of Class A common stock, less the underwriting discounts and commissions. The proceeds from the Q1 Secondary Offering and Overallotment Option were used to (i) purchase 2,269,776 existing shares of Class A common stock from the shareholders of the Blocker Companies and (ii) redeem 6,350,717 LLC Units held by the pre-IPO LLC Members. In connection with the redemption, 6,350,717 shares of Class B common stock were surrendered by the pre-IPO LLC Members and canceled and the Company received 6,350,717 newly-issued LLC Units, increasing the Company's total ownership interest in Portillo's OpCo. As a result, Portillo’s did not receive any proceeds from the offering, and the total number of shares of Class A common stock and Class B common stock did not change; however, the number of outstanding shares of Class A common stock increased by the same number of the canceled shares of Class B common stock. There was no secondary offering completed in the third quarter of 2023.

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Tax Receivable Agreement

In connection with the IPO, we entered into a Tax Receivable Agreement ("TRA") with certain of our pre-IPO LLC Members, pursuant to which we will generally be required to pay 85% of the amount of cash savings, if any, in U.S. federal, state, and local income tax that we actually realize or are deemed to realize, as a result of (i) our allocable share of existing tax basis in depreciable or amortizable assets relating to LLC Units acquired in the IPO, (ii) certain favorable tax attributes acquired by the Company from entities treated as corporations for U.S. tax purposes that held LLC Units prior to the Transactions ("Blocker Companies") (including net operating losses and the Blocker Companies' allocable share of existing tax basis), (iii) increases in our allocable share of then existing tax basis in depreciable or amortizable assets, and adjustments to the tax basis of the tangible and intangible assets, of Portillo’s OpCo and its subsidiaries, as a result of (x) sales or exchanges of interests in Portillo’s OpCo (including the repayment of the redeemable preferred units) in connection with the IPO and (y) future redemptions or exchanges of LLC Units by pre-IPO LLC Members for Class A common stock and (iv) certain other tax benefits related to entering into the TRA, including payments made under the TRA.

As of September 24, 2023, we estimate that our obligation for future payments under the TRA totaled $301.5 million. Amounts payable under the TRA are contingent upon, among other things, (i) generation of future taxable income over the term of the TRA and (ii) future changes in tax laws. If we do not generate sufficient taxable income in the aggregate over the term of the TRA to utilize the tax benefits, then we would not be required to make the related TRA payments. 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, but we expect the cash tax savings we will realize to fund the required payments. Assuming no material changes in relevant tax law and that we earn sufficient taxable income to realize all tax benefits that are subject to the TRA, we estimate that the tax savings associated with all tax attributes described above would aggregate to approximately $354.7 million as of September 24, 2023. Under this scenario, we would be required to pay the TRA Parties approximately 85% of such amount, or $301.5 million, primarily over the next 15 years, substantially declining in year 16 through year 47. In the three quarters ended September 24, 2023, we made a TRA payment of $0.8 million relating to tax year 2021. We made no TRA payments in the quarter ended September 24, 2023. We expect a payment of $6.5 million relating to tax year 2022 to be paid within the next 12 months.

Summary of Cash Flows

The following table presents a summary of our cash flows from operating, investing and financing activities (in thousands):

	Three Quarters Ended
	September 24, 2023		September 25, 2022
Net cash provided by operating activities	$	53,570	$	38,969
Net cash used in investing activities	(57,579)		(29,968)
Net cash used in financing activities	(27,471)		(1,542)
Net (decrease) increase in cash and cash equivalents and restricted cash	(31,480)		7,459
Cash and cash equivalents and restricted cash at beginning of period	44,427		39,263
Cash and cash equivalents and restricted cash at end of period	$	12,947	$	46,722

Operating Activities

Net cash provided by operating activities for the three quarters ended September 24, 2023 was $53.6 million compared to net cash provided by operating activities of $39.0 million for the three quarters ended September 25, 2022, an increase of $14.6 million or 37.5%. This increase was primarily driven by the change in operating assets and liabilities of $10.8 million and the change in non-cash items of $3.1 million, partially offset by higher net income of $0.7 million.

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The $10.8 million change in our operating assets and liabilities balances was primarily driven by operating assets and liabilities being a source of net cash of $2.6 million in the three quarters ended September 24, 2023, compared to a use of net cash of $8.3 million in three quarters ended September 25, 2022 driven by the change in accrued expenses and other liabilities in the three quarters ended September 24, 2023. The $3.1 million change from the three quarters ended September 24, 2023 in non-cash charges is primarily driven by the loss on debt extinguishment in the current year. The increase in net income for the three quarters ended September 24, 2023 was primarily due to higher revenue in the three quarters ended September 24, 2023 compared to the three quarters ended September 25, 2022 as described in the condensed consolidated results of operations, partially offset by the factors driving the aforementioned expenses as described in the condensed consolidated results of operations in the three quarters ended September 24, 2023 compared to the three quarters ended September 25, 2022.

Investing Activities

Net cash used in investing activities was $57.6 million for the three quarters ended September 24, 2023 compared to $30.0 million for the three quarters ended September 25, 2022, an increase of $27.6 million or 92.1%. This increase was primarily due to the number of restaurant openings and buildings in process during the three quarters ended September 24, 2023 compared to the three quarters ended September 25, 2022.

Financing Activities

Net cash used in financing activities was $27.5 million for the three quarters ended September 24, 2023 compared to net cash used in financing activities of $1.5 million for the three quarters ended September 25, 2022, an increase of $25.9 million or 1681.5%. This increase is primarily due to the refinancing of our long-term debt as described in Note 8. Debt, the payment of deferred financing costs of $3.6 million and payments made under the TRA of $0.8 million.

2023 Revolver Facility and Liens

On February 2, 2023, Holdings, the Borrower, the other Guarantors party thereto from time to time, each lender party thereto from time to time and Fifth Third Bank, National Association, as Administrative Agent, L/C Issuer and Swing Line Lender entered into the 2023 Credit Agreement which provides for the 2023 Term Loan in an initial aggregate principal amount of $300.0 million and the 2023 Revolver Facility in an initial aggregate principal amount of $100.0 million. The proceeds under the 2023 Term Loan and 2023 Revolver Facility, along with cash on hand, were used to repay outstanding indebtedness under the 2014 Credit Agreement and to pay related transaction expenses. The 2023 Term Loan and 2023 Revolver Facility are scheduled to mature on February 2, 2028.

As of September 24, 2023, we had no of borrowings under the 2023 Revolver Facility, and letters of credit issued under the 2023 Revolver Facility totaled $4.3 million. As a result, as of September 24, 2023, the Company had $95.7 million available under the 2023 Revolver Facility. Subsequent to the quarter-end, on September 29, 2023 the Company borrowed $7.0 million under the 2023 Revolver Facility. As a result, as of September 29, 2023, the outstanding balance of the 2023 Revolver Facility upon borrowing is $7.0 million and $88.7 million is available to the Company under the 2023 Revolver Facility.

The 2023 Credit Agreement also includes certain financial covenants with respect to cash interest coverage and total net rent adjusted leverage. As of September 24, 2023, the Company was in compliance with all covenants in the 2023 Credit Agreement.

Material Cash Requirements

There have been no material changes to the material cash requirements as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 25, 2022, other than those payments made in the ordinary course of business.

Refer to Note 8. Debt for a description of a Credit Agreement and the repayment of borrowings.

Critical Accounting Estimates

This discussion and analysis of financial condition and results of operations is based upon the Company's condensed consolidated financial statements, which have been prepared in accordance with GAAP. The preparation of these financial statements requires the Company to make estimates, judgments, and assumptions that can have a meaningful effect on the reporting of condensed consolidated financial statements. There have been no significant changes to our critical accounting estimates or significant accounting policies as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 25, 2022.

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The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to its condensed consolidated financial statements.

JOBS Act

We qualify as an emerging growth company ("EGC") pursuant to the provisions of the Jumpstart our Business Startups (“JOBS”) Act. For as long as we are an EGC, we may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not EGCs, including, but not limited to, not being required to comply with the auditor attestation requirements of Section 404(b) of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements, exemptions from the requirements of holding advisory “say-on-pay” votes on executive compensation and shareholder advisory votes on golden parachute compensation.

In addition, Section 107 of the JOBS Act also provides that an EGC can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or revised accounting standards. An EGC can therefore delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We intend to take advantage of the extended transition period.

We will remain an EGC until the last day of the fiscal year following the fifth anniversary of the date of the first sale of our Class A common stock pursuant to an effective registration statement, which was October 21, 2021, unless, prior to that time, we have more than $1.07 billion in annual gross revenue, have a market value for our Class A common stock held by non-affiliates of more than $700 million as of the last day of our second fiscal quarter of the fiscal year and a determination is made that we are deemed to be a “large accelerated filer,” as defined in Rule 12b-2 promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or issue more than $1.0 billion of non-convertible debt over a three-year period, whether or not issued in a registered offering. We have availed ourselves of the reduced reporting obligations with respect to executive compensation disclosure and expect to continue to avail ourselves of the reduced reporting obligations available to EGCs in future filings.

Portillo's Inc. Form 10-Q | 38

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 25, 2022.

Item 4. Controls and Procedures.

EVALUATION OF 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.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

There were no changes to our internal control over financial reporting that occurred during the quarter ended September 24, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Portillo's Inc. Form 10-Q | 39

PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

Information regarding certain legal proceedings to which the Company is a party are discussed in Note 14. Contingencies in the notes to the unaudited condensed consolidated financial statements and is incorporated herein by reference.

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 year ended December 25, 2022, except as updated in the Company's last Quarterly Report on Form 10-Q for the quarter ended June 25, 2023, and as set forth below.

Matters relating to employment and labor law could have a material adverse effect, result in litigation or additional union activities, add significant costs and divert management attention.

Various federal and state labor laws govern our relationships with our team members and affect our operating costs. Our operations are subject to the U.S. Occupational Safety and Health Act, which governs worker health and safety, the U.S. Fair Labor Standards Act, which governs such matters as minimum wages and overtime, and a variety of similar federal, state and local laws that govern these and other employment law matters. These laws include employee classifications as exempt or non-exempt, minimum wage requirements, unemployment tax rates, workers’ compensation rates, overtime, family leave, working conditions, safety standards, immigration status, state and local payroll taxes, federal and state laws which prohibit discrimination, citizenship requirements and other wage and benefit requirements for team members classified as non-exempt. In addition, with the passage in 2010 of the U.S. Patient Protection and Affordable Care Act (the “ACA”), we are required to provide affordable coverage, as defined in the ACA, to eligible team members, or otherwise be subject to a payment per team member based on the affordability criteria in the ACA. Additionally, some states and localities have passed state and local laws mandating the provision of certain levels of health benefits by some employers. Significant additional government regulations and new laws, including mandated increases in minimum wages, changes in exempt and non-exempt status, or increased mandated benefits such as health care and insurance costs could have a material adverse effect on our business, financial condition and results of operations. In addition, changes in federal or state workplace regulations could adversely affect our ability to meet our financial targets.

Federal law requires that we verify that our workers have the proper documentation and authorization to work in the U.S. Although we require all workers to provide us with government-specified documentation evidencing their employment eligibility, some of our team members may, without our knowledge, be unauthorized workers. We currently participate in the “E-Verify” program, an Internet-based, free program run by the U.S. government to verify employment eligibility, in Arizona, which is the only state in which we operate where participation is required. However, use of the “E-Verify” program does not guarantee that we will properly identify all applicants who are ineligible for employment, and we are not utilizing “E-Verify” in any other states where we operate. Unauthorized workers are subject to deportation and may subject us to fines or penalties, and if any of our workers are found to be unauthorized, we could experience adverse publicity that may negatively impact our brand and may make it more difficult to hire and keep qualified team members. Termination of a significant number of team members who are unauthorized employees may disrupt our operations, cause temporary increases in our labor costs as we train new team members and result in adverse publicity. We could also become subject to fines, penalties and other costs related to claims that we did not fully comply with all recordkeeping obligations of federal and state immigration compliance laws. These factors could materially adversely affect our business, financial condition and results of operations.

Portillo's Inc. Form 10-Q | 40

Our business is subject to the risk of litigation by team members, consumers, suppliers, shareholders or others through private actions, class actions, administrative proceedings, regulatory actions or other litigation. The outcome of litigation, particularly class action and regulatory actions, is difficult to assess or quantify. In recent years, restaurant companies, including us, have been subject to lawsuits alleging violations of federal and state laws regarding workplace and employment conditions, discrimination and similar matters, and some restaurants have been subject to class action lawsuits in respect of such matters. A number of these lawsuits have resulted in the payment of substantial damages by the defendants. Similar lawsuits have been instituted from time to time alleging violations of various federal and state wage and hour laws regarding, among other things, employee meal deductions, overtime eligibility of managers and failure to pay for all hours worked. Regardless of whether any claims against us are valid or whether we are found to be liable, claims may be expensive to defend and may divert time and money away from our operations and result in increases in our insurance premiums. In addition, they may generate negative publicity, which could reduce guest traffic and sales. Although we maintain what we believe to be adequate levels of insurance, insurance may not be available at all or in sufficient amounts to cover any liabilities with respect to these or other matters. A judgment or other liability in excess of our insurance coverage for any claims or any adverse publicity resulting from claims could have a material adverse effect on our business, financial condition and results of operations.

On April 13, 2023, certain of our team members at one of our commissaries voted in favor of being represented by a union. We filed objections to the election with the National Labor Relations Board on April 19th, asserting that the union and its agent's promises prevented a free and fair election. We have appealed to the NLRB Regional Director to set aside the election results. Although we have not received other petitions to unionize, it is possible that additional team members may choose to be represented by labor unions in the future. If a significant number of our team members were to become unionized and collective bargaining agreement terms were significantly different from our current compensation arrangements, it could have a material adverse effect on our business, financial condition and results of operations. In addition, a labor dispute involving some or all our team members may harm our reputation, disrupt our operations and reduce our revenues, and resolution of disputes could increase our costs. Further, if we enter into a new market with unionized construction companies, or the construction companies in our current markets become unionized, construction and build-out costs for new restaurants in such markets could materially increase.

Changes in market and general economic conditions have in the past adversely affected, and may in the future adversely affect, our business and profitability and cause volatility in our results of operations.

Recently, concerns have arisen with respect to the financial condition of a number of banking organizations in the United States, in particular those with exposure to certain types of depositors and large portfolios of investment securities. In early March, the FDIC was appointed the receiver for both Silicon Valley Bank and Signature Bank in early March 2023 and First Republic Bank in early May 2023 after the banks were closed by regulators. While we do not have any exposure to these banks, we do hold the cash and cash equivalents used to meet our working capital and operating expense needs, primarily at one financial institution, often in balances that exceed the current FDIC insurance limits. If other banks and financial institutions enter receivership or become insolvent in the future, our ability to access our cash and cash equivalents to satisfy our operations may be threatened and could have a material adverse effect on our business and financial condition. We may also lose amounts in excess of the FDIC insurance limits and there can be no guarantee that the government would intervene. Our ability to borrow under our existing credit facilities, as well as our ability to secure additional sources of financing, may be impacted in significant ways. We may also be adversely impacted by increased costs of capital resulting from additional regulatory changes and requirements. Our vendors and service providers may also suffer disruptions that in turn adversely impact our operations and business.

Economic and market conditions have had, and will continue to have, a direct and material impact on our results of operations and financial condition because our performance is heavily influenced by the overall strength of general economic conditions. Concerns about or future adverse developments in the global and domestic financial markets also impact confidence in economic conditions, specifically consumer confidence. In a time of uncertainty or a downturn, consumers may be willing to spend less with our business. There may be additional risks that we have not yet identified. We continue to monitor the potential impact on our business.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

Not applicable.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

Portillo's Inc. Form 10-Q | 41

Item 5. Other Information.

(c) Rule 10b5-1 and non-Rule 10b5-1 Trading Arrangements

During the quarter ended September 24, 2023, the following officers of the Company adopted a "Rule 10b5-1 trading arrangement” as defined in Item 408(a) of Regulation S-K:

Name/ Title	Type of Plan	Adoption Date	Expiration Date	Aggregate Number of Securities to be Sold	Plan Description
Michael Osanloo, President/CEO and Director	10b5-1 Trading Plan	August 7, 2023	May 1, 2024	82,819	Sale of Shares
Derrick Pratt, Chief Operating Officer	10b5-1 Trading Plan	August 7, 2023	July 31, 2024	37,388	Sale of Shares
Nicholas Scarpino, SVP, Marketing and Off-Premise Dining	10b5-1 Trading Plan	August 7, 2023	June 6, 2024	96,722	Exercise of Options and Sale of Shares

No other director or officer of the Company adopted, amended, or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(c) of Regulation S-K during this time.

Portillo's Inc. Form 10-Q | 42

Item 6. Exhibits.

Exhibit Number	Description	Filed Herewith
3.1	Amended and Restated Certificate of Incorporation of Portillo's Inc. (incorporated by reference to Exhibit 3.1 of the Company's Quarterly Report on Form 10-Q filed on November 18, 2021)
3.2	Amended and Restated Bylaws of Portillo’s Inc. (incorporated by reference to Exhibit 3.2 of the Company's Quarterly Report on Form 10-Q filed on November 18, 2021)
10.1	Form of Stock and Unit Purchase Agreement by and among Portillo’s Inc. and the parties named therein (incorporated by reference to the Company's Registration Statement on S-1 filed on August 8, 2022)
31.1	Certification of the Principal Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	*
31.2	Certification of the Principal Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	*
32.1	Certifications of the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	#
101.INS	XBRL 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.SCH	XBRL Taxonomy Extension Schema Document	*
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document	*
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document	*
101.LAB	XBRL Taxonomy Extension Label Linkbase Document	*
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document	*
104	Cover 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	*

*    Filed Herewith

#     Furnished Herewith

†    Indicates a management contract or compensatory plan or agreement

Portillo's Inc. Form 10-Q | 43

SIGNATURE

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.

 

		Portillo's Inc.
		(Registrant)
Date: November 2, 2023	By:	/s/ Michael Osanloo
		Michael Osanloo
		President, Chief Executive Officer and Director (Principal Executive Officer)
Date: November 2, 2023	By:	/s/ Michelle Hook
		Michelle Hook
		Chief Financial Officer and Treasurer (Principal Financial Officer and Principal Accounting Officer)

Portillo's Inc. Form 10-Q | 44

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO RULE 13A-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Michael Osanloo, certify that:

1.		I have reviewed this Quarterly Report on Form 10-Q for the quarterly period ended September 24, 2023 of Portillo's Inc.;
2.		Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.		Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.		The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation;
	d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.		The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 2, 2023	By:	/s/ Michael Osanloo
		Michael Osanloo
		President, Chief Executive Officer and Director (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO RULE 13A-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Michelle Hook, certify that:

1.		I have reviewed this Quarterly Report on Form 10-Q for the quarterly period ended September 24, 2023 of Portillo's Inc.;
2.		Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.		Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.		The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation;
	d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.		The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 2, 2023	By:	/s/ Michelle Hook
		Michelle Hook
		Chief Financial Officer and Treasurer (Principal Financial Officer and Principal Accounting Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Portillo's Inc. (the “Company”), for the quarterly period ended September 24, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Company certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of such officer's knowledge:

1	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 2, 2023	By:	/s/ Michael Osanloo
		Michael Osanloo
		President, Chief Executive Officer and Director (Principal Executive Officer)

Date: November 2, 2023	By:	/s/ Michelle Hook
		Michelle Hook
		Chief Financial Officer and Treasurer (Principal Financial Officer and Principal Accounting Officer)

XML

COVER PAGE - shares	9 Months Ended
	Sep. 24, 2023	Oct. 26, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 24, 2023
Document Transition Report	false
Entity File Number	001-40951
Entity Registrant Name	PORTILLO'S INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-1104304
Entity Address, Address Line One	2001 Spring Road
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Oak Brook
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60523
City Area Code	630
Local Phone Number	954-3773
Title of 12(b) Security	Class A common stock, $0.01 par value per share
Trading Symbol	PTLO
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		55,442,273
Entity Central Index Key	0001871509
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 24, 2023	Dec. 25, 2022
CURRENT ASSETS:
Cash and cash equivalents and restricted cash	$ 12,947	$ 44,427
Accounts and tenant improvement receivables	14,962	8,590
Inventory	6,418	7,387
Prepaid expenses	4,798	4,922
Total current assets	39,125	65,326
Property and equipment, net	274,605	227,036
Operating lease assets	191,488	166,808
Goodwill	394,298	394,298
Trade names	223,925	223,925
Other intangible assets, net	29,634	31,800
Equity method investment	16,543	16,274
Deferred tax assets	184,375	150,497
Other assets	3,847	4,119
Total other assets	852,622	820,913
TOTAL ASSETS	1,357,840	1,280,083
CURRENT LIABILITIES:
Accounts payable	33,481	30,273
Current portion of long-term debt	7,500	4,155
Current portion of Tax Receivable Agreement liability	6,527	813
Current deferred revenue	4,094	7,292
Short-term operating lease liability	5,048	4,849
Accrued expenses	33,355	29,915
Total current liabilities	90,005	77,297
LONG-TERM LIABILITIES:
Long-term debt, net of current portion	287,486	314,425
Tax Receivable Agreement liability	294,950	252,003
Long-term operating lease liability	234,699	200,166
Other long-term liabilities	2,973	3,291
Total long-term liabilities	820,108	769,885
Total liabilities	910,113	847,182
COMMITMENTS AND CONTINGENCIES (NOTE 14)
STOCKHOLDERS' EQUITY:
Preferred stock, $0.01 par value per share, 10,000,000 shares authorized, none issued or outstanding	0	0
Additional paid-in-capital	305,515	260,664
Retained earnings (accumulated deficit)	5,823	(4,812)
Total stockholders' equity attributable to Portillo's Inc.	311,890	256,336
Non-controlling interest	135,837	176,565
Total stockholders' equity	447,727	432,901
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,357,840	1,280,083
Class A Common Stock
STOCKHOLDERS' EQUITY:
Common stock	552	484
Class B Common Stock
STOCKHOLDERS' EQUITY:
Common stock	$ 0	$ 0

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares	Sep. 24, 2023	Dec. 25, 2022
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Class A Common Stock
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	380,000,000	380,000,000
Common stock issued (in shares)	55,182,141	48,420,723
Common stock outstanding (in shares)	55,182,141	48,420,723
Class B Common Stock
Common stock, par value (in usd per share)	$ 0.00001	$ 0.00001
Common stock authorized (in shares)	50,000,000	50,000,000
Common stock issued (in shares)	17,472,926	23,837,162
Common stock outstanding (in shares)	17,472,926	23,837,162

XML

CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Income Statement [Abstract]
REVENUES, NET	$ 166,805	$ 151,121	$ 492,047	$ 436,226
Restaurant operating expenses:
Food, beverage and packaging costs	55,551	53,374	165,407	151,414
Labor	42,588	39,133	126,200	114,352
Occupancy	8,210	7,644	24,898	22,778
Other operating expenses	18,571	16,882	56,107	47,225
Total restaurant operating expenses	124,920	117,033	372,612	335,769
General and administrative expenses	18,898	18,059	57,285	49,185
Pre-opening expenses	2,410	791	5,029	1,770
Depreciation and amortization	6,178	5,289	17,788	15,803
Net income attributable to equity method investment	(422)	(409)	(1,010)	(807)
Other income, net	(276)	(228)	(630)	(333)
OPERATING INCOME	15,097	10,586	40,973	34,839
Interest expense	6,573	7,090	20,539	19,286
Interest income	(116)	0	(116)	0
Tax Receivable Agreement liability adjustment	(528)	(708)	(1,691)	(2,462)
Loss on debt extinguishment	0	0	3,465	0
INCOME BEFORE INCOME TAXES	9,168	4,204	18,776	18,015
Income tax expense	2,622	1,006	3,605	3,511
NET INCOME	6,546	3,198	15,171	14,504
Net income attributable to non-controlling interests	2,185	1,606	4,536	7,607
NET INCOME ATTRIBUTABLE TO PORTILLO'S INC.	$ 4,361	$ 1,592	$ 10,635	$ 6,897
Net income per common share attributable to Portillo's Inc.:
Basic (in usd per share)	$ 0.08	$ 0.04	$ 0.20	$ 0.19
Diluted (in usd per share)	$ 0.07	$ 0.04	$ 0.19	$ 0.17
Weighted-average common shares outstanding:
Basic (in shares)	55,127,133	38,899,373	53,231,086	36,899,208
Diluted (in shares)	58,767,812	42,625,160	56,813,653	40,785,766

XML

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Non-Controlling Interest
Beginning balance (in shares) at Dec. 26, 2021				35,807,171	35,673,321
Beginning balance at Dec. 26, 2021	$ 423,406			$ 358	$ 0	$ 186,856	$ (15,950)	$ 252,142
Total Stockholders' Equity
Net income	14,504						6,897	7,607
Equity-based compensation	11,347					5,837		5,510
Activity under equity-based compensation plans (in shares)				475,293
Activity under equity-based compensation plans	1,722			$ 4		1,718
Redemption of LLC Interests (in shares)				5,942,559	(5,942,559)
Redemption of LLC Interests	0			$ 59		(59)
Non-controlling interest adjustment	0					44,533		(44,533)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	(6,854)					(6,854)
Ending balance (in shares) at Sep. 25, 2022				42,225,023	29,730,762
Ending balance at Sep. 25, 2022	444,125			$ 421	$ 0	232,031	(9,053)	220,726
Beginning balance (in shares) at Jun. 26, 2022				36,218,355	35,673,321
Beginning balance at Jun. 26, 2022	443,812			$ 362	$ 0	192,862	(10,645)	261,233
Total Stockholders' Equity
Net income	3,198						1,592	1,606
Equity-based compensation	3,698					2,000		1,698
Activity under equity-based compensation plans (in shares)				64,109
Activity under equity-based compensation plans	271					271
Redemption of LLC Interests (in shares)				5,942,559	5,942,559
Redemption of LLC Interests	0			$ 59		(59)
Non-controlling interest adjustment	0					43,811		(43,811)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	(6,854)					(6,854)
Ending balance (in shares) at Sep. 25, 2022				42,225,023	29,730,762
Ending balance at Sep. 25, 2022	444,125			$ 421	$ 0	232,031	(9,053)	220,726
Beginning balance (in shares) at Dec. 25, 2022		48,420,723	23,837,162	48,420,723	23,837,162
Beginning balance at Dec. 25, 2022	432,901			$ 484	$ 0	260,664	(4,812)	176,565
Total Stockholders' Equity
Net income	15,171						10,635	4,536
Equity-based compensation	12,044					8,846		3,198
Activity under equity-based compensation plans (in shares)				397,182
Activity under equity-based compensation plans	1,692			$ 4		1,688
Redemption of LLC Interests (in shares)				6,364,236	(6,364,236)
Redemption of LLC Interests	0			$ 64		(64)
Non-controlling interest adjustment	0					48,063		(48,063)
Distributions paid to non-controlling interest holders	(399)							(399)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	(13,682)					(13,682)
Ending balance (in shares) at Sep. 24, 2023		55,182,141	17,472,926	55,182,141	17,472,926
Ending balance at Sep. 24, 2023	447,727			$ 552	$ 0	305,515	5,823	135,837
Beginning balance (in shares) at Jun. 25, 2023				55,073,993	17,472,926
Beginning balance at Jun. 25, 2023	436,456			$ 551	$ 0	301,622	1,462	132,821
Total Stockholders' Equity
Net income	6,546						4,361	2,185
Equity-based compensation	4,324					3,275		1,049
Activity under equity-based compensation plans (in shares)				108,148
Activity under equity-based compensation plans	401			$ 1		400
Non-controlling interest adjustment	0					218		(218)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	0
Ending balance (in shares) at Sep. 24, 2023		55,182,141	17,472,926	55,182,141	17,472,926
Ending balance at Sep. 24, 2023	$ 447,727			$ 552	$ 0	$ 305,515	$ 5,823	$ 135,837

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 15,171	$ 14,504
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,788	15,803
Amortization of debt issuance costs and discount	814	1,952
Loss on sales of assets	512	212
Equity-based compensation	12,044	11,347
Deferred rent and tenant allowance	0	3,288
Deferred income tax expense	3,605	3,511
Tax Receivable Agreement liability adjustment	(1,691)	(2,462)
Amortization of deferred lease incentives	0	(289)
Gift card breakage	(688)	(626)
Loss on debt extinguishment	3,465	0
Changes in operating assets and liabilities:
Accounts receivable	(1,293)	(2,064)
Receivables from related parties	(100)	(34)
Inventory	969	144
Other current assets	124	1,666
Operating lease assets	5,685	0
Accounts payable	(2,777)	(1,089)
Accrued expenses and other liabilities	1,023	(8,448)
Operating lease liabilities	(1,775)	0
Deferred lease incentives	1,013	1,651
Other assets and liabilities	(319)	(97)
NET CASH PROVIDED BY OPERATING ACTIVITIES	53,570	38,969
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(57,660)	(30,012)
Proceeds from the sale of property and equipment	81	44
NET CASH USED IN INVESTING ACTIVITIES	(57,579)	(29,968)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	300,000	0
Payments of long-term debt	(324,303)	(2,493)
Proceeds from equity offering, net of underwriting discounts	179,306	183,436
Repurchase of outstanding equity / Portillo's OpCo units	(179,306)	(183,436)
Distributions paid to non-controlling interest holders	(399)	0
Proceeds from stock option exercises	1,321	1,722
Employee withholding taxes related to net settled equity awards	(112)	0
Proceeds from Employee Stock Purchase Plan purchases	404	0
Payments of Tax Receivable Agreement liability	(813)	0
Payment of deferred financing costs	(3,569)	0
Payment of initial public offering issuance costs	0	(771)
NET CASH USED IN FINANCING ACTIVITIES	(27,471)	(1,542)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	(31,480)	7,459
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF THE PERIOD	44,427	39,263
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF THE PERIOD	12,947	46,722
SUPPLEMENTAL CASH FLOW INFORMATION
Interest paid	15,738	16,856
Income tax paid	0	0
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Accrued capital expenditures	15,915	6,823
Establishment of liabilities under Tax Receivable Agreement	$ 51,165	$ 51,112

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DESCRIPTION OF BUSINESS

9 Months Ended

Sep. 24, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

DESCRIPTION OF BUSINESS

DESCRIPTION OF BUSINESS

Portillo’s Inc. ( "Inc.") was formed and incorporated as a Delaware corporation on June 8, 2021. Inc. was formed for the purpose of completing an initial public offering ("IPO") and related reorganization transactions (collectively, the "Transactions”) in order to carry on the business of PHD Group Holdings LLC and its subsidiaries ("Portillo's OpCo"). Following the consummation of the Transactions on October 20, 2021, Inc. became the sole managing member of Portillo’s OpCo, and as sole managing member, Inc. operates and controls all of the business and affairs of Portillo's OpCo. As a result, Inc. consolidates the financial results of Portillo's OpCo and reports a non-controlling interest representing the economic interest in Portillo's OpCo held by the other members of Portillo's OpCo (the "pre-IPO LLC Members"). Unless the context otherwise requires, references to "we," "us," "our," "Portillo's," and the "Company" refer to Portillo's Inc. and its subsidiaries, including Portillo's OpCo.

The Company operates fast-casual restaurants in 10 states, along with two food production commissaries in Illinois. As of September 24, 2023 and December 25, 2022, the Company had 77 and 71 restaurants in operation, respectively. The Company also had two non-traditional locations in operation as of September 24, 2023 and December 25, 2022. These non-traditional locations include a food truck and a ghost kitchen (small kitchen with no store-front presence, used to fill online orders). Portillo's additionally has a 50% interest in a single restaurant owned by C&O, which is excluded from the Company's restaurant count. The Company’s principal corporate offices are located in Oak Brook, Illinois.

Secondary Offerings

In the first quarter of 2023, the Company completed a secondary offering of 8,000,000 shares of the Company's Class A common stock at an offering price of $21.05 per share. On April 5, 2023, the Underwriter exercised its overallotment option in part, to purchase an additional 620,493 shares of the Company's Class A common stock at an offering price of $21.05 per share (collectively the "Q1 Secondary Offering and Overallotment Option"). We used all of the net proceeds from the Q1 Secondary Offering and Overallotment Option to purchase LLC Units and corresponding shares of Class B common stock from certain pre-IPO LLC Members and to repurchase shares of Class A common stock from the shareholders of the entities treated as corporations for U.S. tax purposes that held LLC Units prior to the Transactions ("Blocker Companies") at a price per LLC Unit or share of Class A common stock, as applicable, equal to the public offering price per share of Class A common stock, less the underwriting discounts and commissions. The proceeds from the Q1 Secondary Offering and Overallotment Option were used to (i) purchase 2,269,776 existing shares of Class A common stock from the shareholders of the Blocker Companies and (ii) redeem 6,350,717 LLC Units held by the pre-IPO LLC Members. In connection with the redemption, 6,350,717 shares of Class B common stock were surrendered by the pre-IPO LLC Members and canceled and the Company received 6,350,717 newly-issued LLC Units, increasing the Company's total ownership interest in Portillo's OpCo. As a result, Portillo’s did not receive any proceeds from the offering, and the total number of shares of Class A common stock and Class B common stock did not change; however, the number of outstanding shares of Class A common stock increased by the same number of the canceled shares of Class B common stock. There was no secondary offering completed in the third quarter of 2023.

In the third and fourth quarters of 2022, the Company completed two secondary offerings of 8,066,458 shares (including 66,458 shares sold to the underwriters pursuant to their overallotment option) and 8,000,000 shares, respectively, of the Company's Class A common stock at an offering price of $23.75 and $22.69, respectively, per share.

As of September 24, 2023, the Company owns 76.0% of Portillo's OpCo and the pre-IPO LLC Members own the remaining 24.0% of Portillo's OpCo.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

9 Months Ended

Sep. 24, 2023

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The Company has prepared the accompanying unaudited condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial statements and pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments necessary for a fair presentation of our financial position and results of operations. Interim results of operations are not necessarily indicative of the results that may be achieved for the full year. The financial statements and related notes do not include all information and footnotes required by GAAP for annual reports. The unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 25, 2022.

All intercompany balances and transactions have been eliminated in consolidation.

The Company does not have any components of other comprehensive income (loss) recorded within its condensed consolidated financial statements, and therefore, does not separately present a statement of comprehensive income (loss).

Segment Reporting

The Company owns and operates fast-casual restaurants in the United States, along with two food production commissaries in Illinois. The Company’s chief operating decision maker (the “CODM”) is its Chief Executive Officer ("CEO"). The CODM reviews financial performance and allocates resources at a consolidated level on a recurring basis. The Company has one operating segment and one reportable segment.

Fiscal Year

The Company uses a 52- or 53-week fiscal year ending on the Sunday prior to or on December 31. In a 52-week fiscal year, each quarterly period is comprised of 13 weeks. The additional week in a 53-week fiscal year is added to the fourth quarter. Fiscal 2023 and 2022 consist of 53 and 52 weeks, respectively. The fiscal periods presented in this report are the quarters and three quarters ended September 24, 2023 and September 25, 2022, respectively.

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 liabilities at the date of the financial statements, and the reported amounts of sales and expenses during the period. Actual results could differ from those estimates.

Recently Adopted Accounting Standards

In March 2020, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The pronouncement provides temporary optional expedients and exceptions to the current guidance on contract modifications and hedge accounting to ease the financial reporting burden related to the expected market transition from the London Interbank Offered Rate ("LIBOR") and other interbank offered rates to alternative reference rates. The guidance was effective upon issuance and generally can be applied to applicable contract modifications through December 31, 2022. FASB has extended the sunset date to December 31, 2024. The Company does not believe the impact of the transition from LIBOR to alternative reference rates is material to its consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASC 842"), along with related clarifications and improvements. The pronouncement requires lessees to recognize a liability, which represents the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet. The guidance requires disclosure of key information about leasing arrangements that is intended to give financial statement users the ability to assess the amount, timing, and potential uncertainty of cash flows related to leases. The update is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted this standard effective December 27, 2021, electing the modified retrospective approach to apply the standard as of the transition date. We have elected the transition package of three practical expedients permitted under the new standard, which eliminates the requirement to reassess the conclusions about historical lease identifications, lease classifications, and initial direct costs. We did not elect the hindsight practical expedient, which permits the use of hindsight when determining lease terms and impairments of right-of-use assets. We elected to apply the practical expedient of combining lease and non-lease components. Additionally, we elected to utilize the short-term lease exception policy, which allows us to not apply the recognition requirements of this standard to leases with a term of 12 months or less. The adoption of this standard had a significant impact on the Company’s condensed consolidated balance sheet as we recognized the right-of-use asset and lease liabilities for our operating leases. The adoption had an immaterial impact on the condensed consolidated statement of operations, cash flows and overall liquidity. See Note 9. Leases for additional information.

The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to its condensed consolidated financial statements.

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REVENUE RECOGNITION

9 Months Ended

Sep. 24, 2023

Revenue from Contract with Customer [Abstract]

REVENUE RECOGNITION

REVENUE RECOGNITION

Revenues from retail restaurants are presented net of discounts and recognized when food and beverage products are sold to the end customer. Sales taxes collected from customers are excluded from revenues and the obligation is included in accrued liabilities until the taxes are remitted to the appropriate taxing authorities.

Delivery sales are generally fulfilled by third-party delivery partners whether ordered through the Portillo's app and website ("Dispatch Sales") or through third-party delivery partners ("Marketplace Sales"). Dispatch Sales include delivery and service fees as the Company controls the delivery. Revenue from Dispatch Sales is recognized when food is delivered to the customer. For these sales, the Company receives payment directly from the customer at the time of sale. Revenue for Marketplace Sales is recognized in the amount paid to the delivery partner by the customer for food and excludes delivery and service fees charged by the third-party delivery partner as the Company does not control the delivery. Revenue from Marketplace Sales is recognized when food is delivered to the customer. For these sales, the Company receives payment from the delivery partner subsequent to the transfer of order, which is generally paid one week in arrears. For all delivery sales of food, the Company is considered the principal and recognizes revenue on a gross basis.

The Company sells gift cards which do not have expiration dates. The Company records the sale of the gift card as a contract liability and recognizes revenue from gift cards when: (i) the gift card is redeemed by the customer; or (ii) in the event a gift card is not expected to be redeemed, in proportion to the pattern of rights exercised by the customer (gift card breakage). The Company has determined that 11% of gift card sales will not be redeemed and will be retained by us based on a portfolio assessment of historical data on gift card redemption patterns. Gift card breakage is recorded within revenues, net in the condensed consolidated statements of operations. The Company recognized gift card breakage of $0.2 million and $0.7 million for the quarter and three quarters ended September 24, 2023, respectively, and $0.1 million and $0.6 million for the quarter and three quarters ended September 25, 2022, respectively.

The Company’s revenue related to performance obligations not yet satisfied is revenue from gift cards sold but not yet redeemed. The gift card liability included in current deferred revenue on the condensed consolidated balance sheets is as follows (in thousands):

	September 24, 2023		December 25, 2022
Gift card liability	$	4,046	$	6,988

Revenue recognized in the condensed consolidated statement of operations for the redemption of gift cards that were included in their respective liability balances at the beginning of the year is as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Revenue recognized from gift card liability balance at the beginning of the year	$	599	$	534	$	3,436	$	3,215

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INVENTORIES

9 Months Ended

Sep. 24, 2023

Inventory Disclosure [Abstract]

INVENTORIES

INVENTORIESInventories consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
Raw materials	$	4,119	$	5,722
Work in progress	249		104
Finished goods	1,089		876
Consigned inventory	961		685
	$	6,418	$	7,387

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PROPERTY & EQUIPMENT, NET

9 Months Ended

Sep. 24, 2023

Property, Plant and Equipment [Abstract]

PROPERTY & EQUIPMENT, NET

PROPERTY & EQUIPMENT, NET

Property and equipment, net consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
Land improvements	$	17,854	$	16,369
Furniture, fixtures, and equipment	146,027		126,130
Leasehold improvements	192,393		153,341
Transportation equipment	2,647		2,281
Construction-in-progress	36,139		35,386
	395,060		333,507
Less accumulated depreciation	(120,455)		(106,471)
	$	274,605	$	227,036

Depreciation expense was $5.5 million and $15.6 million for the quarter and three quarters ended September 24, 2023, respectively, and $4.5 million and $13.4 million for the quarter and three quarters ended September 25, 2022, respectively, and is included in depreciation and amortization in the condensed consolidated statements of operations.

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GOODWILL & INTANGIBLE ASSETS

9 Months Ended

Sep. 24, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL & INTANGIBLE ASSETS

GOODWILL & INTANGIBLE ASSETS

The Company has one reporting unit for goodwill which is evaluated for impairment annually in the fourth quarter of each fiscal year.

Intangibles, net consisted of the following (in thousands):

	September 24, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(26,483)		29,634
	$	280,042	$	(26,483)	$	253,559

	December 25, 2022
	Gross Carrying Amount		Accumulated Amortization		ASC 842 Adjustment		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(24,317)		—		31,800
Covenants not-to-compete	40,799		(40,799)		—		—
Favorable rental contracts	2,991		(1,849)		(1,142)		—
	$	323,832	$	(66,965)	$	(1,142)	$	255,725

Amortization expense was $0.7 million and $2.2 million for the quarter and three quarters ended September 24, 2023, respectively, and $0.8 million and $2.4 million for the quarter and three quarters ended September 25, 2022, respectively, and is included in depreciation and amortization in the condensed consolidated statements of operations.

The estimated aggregate amortization expense related to intangible assets held at September 24, 2023 for the remainder of this year and the succeeding five years and thereafter is as follows (in thousands):

	Estimated Amortization
2023 (excluding the three quarters ended September 24, 2023)	$	723
2024	2,813
2025	2,707
2026	2,707
2027	2,707
2028	2,707
2029 and thereafter	15,270
	$	29,634

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FAIR VALUE OF FINANCIAL INSTRUMENTS

9 Months Ended

Sep. 24, 2023

Fair Value Disclosures [Abstract]

FAIR VALUE OF FINANCIAL INSTRUMENTS

FAIR VALUE OF FINANCIAL INSTRUMENTS

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The carrying value of the Company's cash and cash equivalents, restricted cash, accounts and tenant improvement receivable, accounts payable and all other current assets and liabilities approximate fair values due to the short-term nature of these financial instruments.

Other assets consist of a deferred compensation plan with related assets held in a rabbi trust.

Deferred Compensation Plan - The Company maintains a rabbi trust to fund obligations under a deferred compensation plan. Amounts in the rabbi trust are invested in mutual funds, which are designated as trading securities carried at fair value. The fair value measurement of these trading securities is considered Level 1 of the fair value hierarchy as they are measured using quoted market prices.

As of September 24, 2023 and December 25, 2022, the fair value of the mutual fund investments and deferred compensation obligations were as follows (in thousands):

	September 24, 2023		December 25, 2022
	Level 1		Level 1
Assets - Investments designated for deferred compensation plan
Cash/money accounts	$	1,027	$	1,470
Mutual funds	2,381		2,241
Total assets	$	3,408	$	3,711

As of September 24, 2023 and December 25, 2022, we had no Level 2 or Level 3 assets.

The deferred compensation investments and obligations are included in other assets, accrued expenses and other long-term liabilities in the consolidated balance sheets. Changes in the fair value of securities held in the rabbi trust are recognized as trading gains and losses and included in other income in the consolidated statements of operations and offsetting increases or decreases in the deferred compensation obligation are recorded in other long-term liabilities in the consolidated balance sheets.

Refer to Note 8. Debt for additional information relating to the fair value of the Company's outstanding debt instruments.

Assets Measured at Fair Value on a Non-Recurring Basis

Assets that are measured at fair value on a non-recurring basis include property and equipment, net, operating lease assets, equity-method investment, goodwill and indefinite-lived intangible assets. These assets are measured at fair value whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. There were no impairment charges recognized during the quarter and three quarters ended September 24, 2023 and September 25, 2022.

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DEBT

9 Months Ended

Sep. 24, 2023

Debt Disclosure [Abstract]

DEBT

DEBT

Debt consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
2023 Term Loan	$	298,125	$	—
2014 Term B-3 Loans	—		322,428
Unamortized discount and debt issuance costs	(3,139)		(3,848)
Total debt, net	294,986		318,580
Less: Current portion of long-term debt	(7,500)		(4,155)
Long-term debt, net	$	287,486	$	314,425

2023 Credit Agreement

On February 2, 2023 (the "Closing Date"), PHD Intermediate LLC (“Holdings”), Portillo’s Holdings LLC (the “Borrower”), the other Guarantors party thereto from time to time, each lender party thereto from time to time and Fifth Third Bank, National Association, as Administrative Agent, L/C Issuer and Swing Line Lender entered into a credit agreement (“2023 Credit Agreement”) which provides for a term A loan (the "2023 Term Loan") in an initial aggregate principal amount of $300.0 million and revolving credit commitments in an initial aggregate principal amount of $100.0 million (the “2023 Revolver Facility”). The 2023 Term Loan and 2023 Revolver Facility are scheduled to mature on February 2, 2028.

The 2023 Term Loan and the 2023 Revolver Facility will accrue interest at the forward-looking secured overnight financing rate (“SOFR”) plus an applicable rate determined upon the consolidated total net rent adjusted leverage ratio, subject to a floor of 0.00% (plus a credit spread adjustment of 0.10% per annum for 1-month interest periods and 0.15% for 3-month interest periods).

As of September 24, 2023, the interest rate on the 2023 Term Loan was 8.14%. Pursuant to the 2023 Credit Agreement, as of September 24, 2023, the commitment fees to maintain the 2023 Revolver Facility were 0.250%, letter of credit fees were 2.75%, and letter of credit fronting fees were 0.125%. Commitment fees, letter of credit fees, and letter of credit fronting fees are recorded as interest expense in the condensed consolidated statements of operations. As of September 24, 2023, the effective interest rate was 8.50%.

The 2023 Term Loan will amortize in quarterly installments equalling an aggregate annual amount of $7.5 million for the first two (2) years following the Closing Date, (b) $15.0 million for the third (3rd) and fourth (4th) years following the Closing Date, and (c) $30.0 million for the fifth (5th) year following the Closing Date, commencing on the last day of the first full fiscal quarter ended after the Closing Date, with the balance payable on the final maturity date.

As of September 24, 2023, outstanding borrowings under the 2023 Credit Agreement totaled $298.1 million, comprising of $298.1 million under the 2023 Term Loan. As of September 24, 2023, there were no borrowings under the 2023 Revolver Facility outstanding. Letters of credit issued under the 2023 Revolver Facility totaled $4.3 million. As a result, as of September 24, 2023, the Company had $95.7 million available under the 2023 Revolver Facility. On September 29, 2023, the Company borrowed $7.0 million on the 2023 Revolver Facility (see Note 16. Subsequent Events for additional details).

2014 Credit Agreement

Holdings, the Borrower and certain of its subsidiaries entered into a credit agreement ("2014 Credit Agreement"), dated as of August 1, 2014 and as amended October 25, 2016, May 18, 2018 and December 6, 2019, with UBS AG, Stamford Branch, as the administrative agent and collateral agent, and other lenders from time to time party thereto (the “2014 Lenders”). The 2014 Lenders extended credit in the form of (i) first lien initial term loans in an initial aggregate principal amount of $335.0 million and (ii) a revolving credit facility in an original principal amount equal to $30.0 million, including a letter of credit sub-facility with a $7.5 million sublimit (the “2014 Revolving Facility” and the loans thereunder, the “2014 Revolving Loans”).

On December 6, 2019, the Borrower entered a third amendment to the 2014 Credit Agreement (the “Third Amendment to 2014 Credit Agreement”) whereby the aggregate principal amount of the term loans as of the effective date of the Third Amendment to 2014 Credit Agreement was $332.4 million (the “2014 Term B-3 Loans”), and the 2014 Revolving Facility was increased to $50.0 million. The maturity date with respect to the 2014 Term B-3 Loans was extended to September 6, 2024, and the maturity date with respect to the 2014 Revolving Loans was extended to June 6, 2024.

In connection with the Third Amendment to 2014 Credit Agreement, the interest rates spread for the 2014 Term B-3 Loans increased by 100 basis points to 5.50% for the adjusted London interbank offered rate ("Eurocurrency Rate") loans. As of September 25, 2022, the interest rate on the 2014 Term B-3 Loans was 6.56%. Beginning with December 31, 2019, the Company is required to pay on the last business day of each calendar quarter, March 31, June 30, September 30, and December 31, an aggregate principal amount of $0.8 million.

As of December 25, 2022, the Company had no borrowings under the 2014 Revolving Facility. As of September 25, 2022, the interest rate on the 2014 Revolving Facility was 3.25%, subject to change based on a consolidated first lien net leverage ratio as defined in the 2014 Credit Agreement. As of September 25, 2022, the commitment fees, pursuant to the 2014 Credit Agreement, to maintain the 2014 Revolving Facility were 0.250%. Also pursuant to the 2014 Credit Agreement, as of September 25, 2022, letter of credit fronting fees were 0.125%. Commitment fees and letter of credit fronting fees are recorded as interest expense in the condensed consolidated statements of operations. As of September 25, 2022, the effective interest rate was 8.84%.

The Company had $4.2 million of letters of credit issued against the 2014 Revolving Facility as of December 25, 2022.

On February 2, 2023, the Company used proceeds from the 2023 Term Loan and 2023 Revolver Facility, along with cash on hand, to pay off the 2014 Credit Agreement in full in the amount of $321.8 million. The 2023 Revolver Facility under the 2023 Credit Agreement replaces the $50.0 million 2014 Revolving Facility under the 2014 Credit Agreement.

Discount and Debt Issuance Costs

Pursuant to the 2023 Credit Agreement, the Company capitalized deferred financing costs and issuance discount of $3.6 million which will be amortized over the term of the 2023 Credit Agreement.

In connection with the repayment of the 2014 Credit Agreement as described above, deferred financing costs and original issuance discount of $3.5 million were recorded as a loss on debt extinguishment during the three quarters ended September 24, 2023 in the condensed consolidated statement of operations.

The Company amortized an immaterial amount and $0.3 million of deferred financing costs during the quarter and three quarters ended September 24, 2023, respectively, and $0.5 million and $1.4 million during the quarter and three quarters ended September 25, 2022, respectively, which is included in interest expense in the condensed consolidated statements of operations. In addition, the Company also amortized $0.2 million and $0.5 million in original issue discount related to the long-term debt during the quarter and three quarters ended September 24, 2023, respectively, and $0.2 million and $0.5 million, respectively, in the quarter and three quarters ended September 25, 2022 which is included in interest expense in the condensed consolidated statements of operations.

Total interest costs incurred were $6.6 million and $20.5 million for the quarter and three quarters ended September 24, 2023, respectively, and $7.1 million and $19.3 million for the quarter and three quarters ended September 25, 2022, respectively.

As of September 24, 2023 and December 25, 2022, the fair value of long-term debt approximates the carrying value as it is variable rate debt. The fair value measurement of this debt is considered Level 2 of the fair value hierarchy as inputs to interest are observable, unadjusted quoted prices in active markets for similar assets or liabilities.

The 2023 Credit Agreement is guaranteed by all domestic subsidiaries of the Borrower (subject to customary exceptions) and secured by liens on substantially all of the assets of Holdings, the Borrower and the subsidiary guarantors (subject to customary exceptions).

The 2023 Credit Agreement also includes certain financial covenants with respect to cash interest coverage and total net rent adjusted leverage. As of September 24, 2023, the Company was in compliance with all covenants in the 2023 Credit Agreement.

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LEASES

9 Months Ended

Sep. 24, 2023

Leases [Abstract]

LEASES

LEASES

We qualify as an emerging growth company pursuant to the provisions of the Jumpstart our Business Startups ("JOBS") Act. As such, we adopted ASU 2016-02, Leases (Topic 842), along with related clarifications and improvements, using a modified retrospective approach, with first presentation of the application of ASC 842 in our Annual Report on Form 10-K for the fiscal year ended December 25, 2022. Quarterly interim financial statements for 2023 are presented under ASC 842. Quarterly interim financial statements were not required in 2022 under prior lease accounting guidance, therefore comparative amounts are not presented for those periods.

A summary of operating lease right-of-use assets and liabilities is as follows (in thousands):

Operating leases	Classification	September 24, 2023		December 25, 2022
Right-of-use assets	Operating lease assets	$	191,488	$	166,808
		191,488		166,808
Current lease liabilities	Short-term operating lease liability	5,048		4,849
Non-current lease liabilities	Long-term operating lease liability	234,699		200,166
		$	239,747	$	205,015

The components of lease expense were as follows (in thousands):

		Quarter Ended		Three Quarters Ended
Operating leases	Classification	September 24, 2023		September 24, 2023
Operating lease cost	Occupancy Other operating expenses General and administrative expenses Pre-opening expenses	$	7,325	$	21,160
Short-term operating lease cost	Occupancy Other operating expenses	202		534
Variable lease cost	Occupancy Other operating expenses General and administrative expenses	751		2,773
		$	8,278	$	24,467

A summary of lease terms and discount rates for operating leases is as follows:

Operating leases	September 24, 2023		December 25, 2022
Weighted-average remaining lease term (years):	25.6		25.0
Weighted-average discount rate:	9.7	%	9.8	%

Supplemental cash flow information related to leases is as follows (in thousands):

	Quarter Ended		Three Quarters Ended
	September 24, 2023		September 24, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	5,909	$	17,490
Operating lease assets obtained in exchange for lease liabilities:
Operating leases	14,006		29,103

As of September 24, 2023, the maturity analysis of the lease liabilities consisted of the following (in thousands):

Year Ending	Operating Leases
2023 (excluding the three quarters ended September 24, 2023)	$	6,153
2024	25,814
2025	25,902
2026	25,986
2027	25,265
Thereafter	626,740
Total lease payments	735,860
Less: imputed interest	(496,113)
Total operating lease liabilities	$	239,747

As of September 24, 2023, operating lease payments include $433.5 million related to options to extend lease terms that are reasonably certain of being exercised and exclude $32.2 million of minimum payments for leases signed but not yet commenced.

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NON-CONTROLLING INTERESTS

9 Months Ended

Sep. 24, 2023

Noncontrolling Interest [Abstract]

NON-CONTROLLING INTERESTS

NON-CONTROLLING INTERESTS

We are the sole managing member of Portillo's OpCo, and as a result, consolidate the financial results of Portillo's OpCo. We report a non-controlling interest representing the LLC Units in Portillo's OpCo held by pre-IPO LLC Members. Changes in our ownership interest in Portillo's OpCo while we retain our controlling interest in Portillo's OpCo will be accounted for as equity transactions. As such, future redemptions or direct exchanges of LLC Units in Portillo's OpCo by the pre-IPO LLC members will result in a change in ownership and reduce the amount recorded as non-controlling interest and increase additional paid-in capital.

In the first and second quarters of 2023, in connection with the Q1 Secondary Offering and Overallotment Option described in Note 1. Description Of Business, 6,350,717 of LLC Units and corresponding shares of Class B common stock were redeemed, respectively, by the pre-IPO LLC Members for newly-issued shares of Class A common stock. We received a total of 6,350,717 newly-issued LLC Units, increasing our total ownership interest in Portillo's OpCo.

The following table summarizes the LLC interest ownership by Portillo's Inc. and pre-IPO LLC members:

	September 24, 2023			December 25, 2022
	LLC Units	Ownership %		LLC Units	Ownership %
Portillo's Inc.	55,182,141	76.0	%	48,420,723	67.0	%
pre-IPO LLC Members	17,472,926	24.0	%	23,837,162	33.0	%
Total	72,655,067	100.0	%	72,257,885	100.0	%

The weighted average ownership percentages for the applicable reporting periods are used to attribute net income to Portillo's Inc. and the pre-IPO LLC Members. The pre-IPO LLC Members' weighted average ownership percentage for the quarter and three quarters ended September 24, 2023 was 24.1% and 26.6%, respectively. The pre-IPO LLC Members' weighted average ownership percentage for the quarter and three quarters ended September 25, 2022 was 45.9% and 48.5%, respectively.

The following table summarizes the effects of changes in ownership in Portillo's OpCo on the Company’s equity (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Net income attributable to Portillo's Inc.	$	4,361	$	1,592	$	10,635	$	6,897
Activity under equity-based compensation plans	400		271		1,688		1,718
Non-controlling interest adjustment	218		43,811		48,063		44,533
Redemption of LLC Units	—		(59)		(64)		(59)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	—		—		(13,682)		—
Total effect of changes in ownership interest on equity attributable to Portillo's Inc.	$	4,979	$	45,615	$	46,640	$	53,089

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EQUITY-BASED COMPENSATION

9 Months Ended

Sep. 24, 2023

Share-Based Payment Arrangement [Abstract]

EQUITY-BASED COMPENSATION

EQUITY-BASED COMPENSATION

Equity-based compensation expense is calculated based on equity awards ultimately expected to vest and is reduced for estimated forfeitures. Forfeitures are revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates and an adjustment to equity-based compensation expense will be recognized at that time.

Equity-based compensation expense included in the Company’s consolidated statements of operations is as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Labor	$	379	$	331	$	1,164	$	1,020
General and administrative expenses	3,945		3,367		10,880		10,327
Total equity-based compensation expense	$	4,324	$	3,698	$	12,044	$	11,347

During the quarter ended September 24, 2023, we granted 10,376 restricted stock units (“RSUs”) under the Portillo's Inc. 2021 Equity Incentive Plan (the "2021 Plan") to certain employees. During the three quarters ended September 24, 2023, under the 2021 Plan, we granted 247,188 RSUs to certain employees and 56,488 RSUs to directors. The weighted average fair value of these awards was determined using the Company's closing stock price on the applicable grant dates, which was $20.51. The RSUs granted to employees will vest one-third on each of the first three anniversaries of the date of grant subject to continued service on such date. The RSUs granted to non-employee directors will vest at the end of this fiscal year.

During the quarter ended September 24, 2023, we also granted 52,173 performance stock options (PSOs) under the 2021 Equity Incentive Plan to a certain executive officer. The grant date fair value of these awards of $2.30 was determined using a Monte Carlo simulation model. The awards are eligible to vest in three (3) tranches based on stock performance conditions: (i) one-third (1/3rd) of the PSOs will vest on the third anniversary of the IPO if the 20-day volume-weighted average price ("VWAP") for a share of common stock is $30.00 per share (1.5 times the IPO price) measured over any twenty (20) consecutive trading day period commencing on the second anniversary of the IPO and ending on the last trading day immediately preceding the third anniversary IPO; (ii) one-third (1/3rd) of the PSOs will vest on the fourth anniversary of the IPO if the 20-day VWAP for a share of common stock is $40.00 per share (2 times the IPO price) measured over any twenty (20) consecutive trading day period commencing on the third anniversary of the IPO and ending on the last trading day immediately preceding the fourth anniversary of the IPO; and (iii) one-third (1/3rd) of the PSOs will vest on the fifth anniversary of the IPO if the 20-day VWAP for a share of common stock is $50.00 per share (2.5 times the IPO price) measured over any twenty (20) consecutive trading day period commencing on the fourth anniversary of the IPO and ending on the last trading day immediately preceding the fifth anniversary of the IPO. All PSOs are subject to continued service on the vesting date of each tranche date and if any tranches fail to vest, the unvested portion of such PSOs will be forfeited and will not be eligible to vest in subsequent years. Once vested, the PSOs are exercisable within a 10-year period from the date of grant.

Employee Stock Purchase Plan

During the quarter and three quarters ended September 24, 2023, the Company issued 6,196 and 21,210 shares, respectively, under the Employee Stock Purchase Plan ("ESPP"). The shares issued under the ESPP are net of shares withheld for taxes. At September 24, 2023, 220,782 shares remained available for issuance under the ESPP. The expense incurred under the ESPP was immaterial for the quarter and three quarters ended September 24, 2023 and is included within general and administrative expenses and labor in the condensed consolidated statements of operations.

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INCOME TAXES

9 Months Ended

Sep. 24, 2023

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

We are the sole managing member of Portillo's OpCo, and as a result, consolidate the financial results of Portillo's OpCo. Portillo's OpCo is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, Portillo's OpCo is not subject to U.S. federal and state and local income taxes in the majority of states in which it operates. Any taxable income or loss generated by Portillo's OpCo is passed through to and included in the taxable income or loss of its members, including us, based upon the respective member's ownership percentage in Portillo's OpCo. 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 Portillo's OpCo, as well as any stand-alone income or loss generated by Portillo's Inc.

Income Tax Expense

The effective income tax rate for the quarter and three quarters ended September 24, 2023 was 28.6% and 19.2%, and 23.9% and 19.5% for the quarter and three quarters ended September 25, 2022, respectively. The increase in our effective income tax rate for the quarter ended September 24, 2023 compared to the quarter ended September 25, 2022 was primarily driven by an increase in the Company's ownership interest in Portillo's OpCo, which increases its share of taxable income (loss) of Portillo's OpCo. The decrease in our effective income tax rate for the three quarters ended September 24, 2023 compared to the three quarters ended September 25, 2022 was primarily driven by the recording of net operating loss carryforwards. The Company’s annual effective tax rate differs from the statutory rate of 21% primarily because the Company is not liable for federal or state income taxes on the portion of Portillo's OpCo’s earnings that are attributable to non-controlling interests, deferred tax adjustments and impacts from equity-based award activity.

We evaluate the realizability of our deferred tax assets on a quarterly basis and establish 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 September 24, 2023, the Company concluded, based on the weight of all available positive and negative evidence, that all of its deferred tax assets (except for those deferred tax assets relating to the basis difference in its investment in Portillo's OpCo that will never be realizable or only reverse upon the eventual sale of its interest in Portillo's OpCo, which we expect would result in a capital loss which we do not expect to be able to utilize) are more likely than not to be realized.

Secondary Offerings

In the first and second quarters of 2023, in connection with the Q1 Secondary Offering and Overallotment Option previously discussed in Note 1. Description Of Business, 6,350,717 LLC Units were redeemed by the pre-IPO LLC Members for newly-issued shares of Class A common stock. As a result, an increase in the tax basis of net assets of Portillo's OpCo subject to the provisions of the Tax Receivable Agreement (the "Tax Receivable Agreement" or "TRA") was recorded. The Company recorded a deferred tax asset of $37.5 million and an additional TRA liability of $51.2 million. As of September 24, 2023, we estimated that our obligation for future payments under the TRA liability totaled $301.5 million. The Company made payments of $0.8 million under the TRA during the three quarters ended September 24, 2023 relating to tax year 2021. There were no amounts paid under the TRA during the quarter ended September 24, 2023 and the quarter and three quarters ended September 25, 2022. We expect a payment of $6.5 million relating to tax year 2022 to be paid within the next 12 months.

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EARNINGS PER SHARE

9 Months Ended

Sep. 24, 2023

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

Basic net earnings per share of Class A common stock is computed by dividing net income attributable to Portillo's Inc. by the weighted-average number of Class A common stock outstanding.

Diluted net earnings per share is computed by dividing net income attributable to Portillo's Inc. by the weighted-average number of dilutive securities, using the treasury stock method.

The computations of basic and diluted earnings per share for the quarters and three quarters ended September 24, 2023 and September 25, 2022 are as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Net income	$	6,546	$	3,198	$	15,171	$	14,504
Net income attributable to non-controlling interests	2,185		1,606		4,536		7,607
Net income attributable to Portillo's Inc.	$	4,361	$	1,592	$	10,635	$	6,897
Shares:
Weighted-average number of common shares outstanding-basic	55,127		38,899		53,231		36,899
Dilutive share awards	3,641		3,726		3,583		3,887
Weighted-average number of common shares outstanding-diluted	58,768		42,625		56,814		40,786
Basic net income per share	$	0.08	$	0.04	$	0.20	$	0.19
Diluted net income per share	$	0.07	$	0.04	$	0.19	$	0.17

The following shares were excluded from the calculation of diluted earnings per share because they would be antidilutive (in thousands):

	Quarter Ended		Three Quarters Ended
	September 24, 2023	September 25, 2022	September 24, 2023	September 25, 2022
Shares subject to performance conditions	1,860	1,862	1,860	1,862
Shares that were antidilutive	5	14	5	—
Total shares excluded from diluted net income per share	1,865	1,876	1,865	1,862

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CONTINGENCIES	9 Months Ended
	Sep. 24, 2023
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES	CONTINGENCIESThe Company is party to legal proceedings and potential claims arising in the normal conduct of business, including claims related to employment matters, contractual disputes, customer injuries, and property damage. Although the ultimate outcome of these claims and lawsuits cannot be predicted with certainty, management believes that the resulting liability, if any, will not have a material effect on the Company’s condensed consolidated financial statements.

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RELATED PARTY TRANSACTIONS

9 Months Ended

Sep. 24, 2023

Related Party Transactions [Abstract]

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS

As of both September 24, 2023 and December 25, 2022, the related parties’ receivables balance consisted of $0.3 million due from C&O, which is included in accounts and tenant improvement receivable in the condensed consolidated balance sheets.

Olo, Inc.

Noah Glass, a member of the Company's Board, is the founder and CEO of Olo, Inc. ("Olo"), a platform the Company uses in connection with our mobile ordering application and delivery.

The Company incurred the following Olo-related costs for the quarter and three quarters ended September 24, 2023 and September 25, 2022 (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Food, beverage and packaging costs	$	462	$	566	$	1,525	$	1,449
Other operating expenses	101		111		327		326
Net Olo-related costs	$	563	$	677	$	1,852	$	1,775

As of September 24, 2023 and December 25, 2022, $0.1 million and $0.2 million, respectively, were payable to Olo and was included in accounts payable in the condensed consolidated balance sheets.

Tax Receivable Agreement

We are party to a TRA with certain members of Portillo's OpCo that provides for the payment by us of 85% of the amount of tax benefits, if any, that Portillo's Inc. actually realizes or in some cases is deemed to realize as a result of certain transactions. The Company made payments of $0.8 million under the TRA relating to tax year 2021 during the three quarters ended September 24, 2023. There were no amounts paid under the TRA during the quarter ended September 24, 2023 and quarter and three quarters ended September 25, 2022.

(in thousands)	September 24, 2023		December 25, 2022
Current portion of Tax Receivable Agreement liability	$	6,527	$	813
Tax receivable agreement liability	294,950		252,003

Secondary Offerings

In connection with the secondary offerings previously discussed in Note 1. Description Of Business, we purchased LLC Units and corresponding shares of Class B common stock and shares of Class A common stock using the proceeds of the secondary offerings at a price equal to the public offering price less the underwriting discounts and commissions from certain pre-IPO LLC Members and shareholders of the Blocker Companies, including from funds affiliated with Berkshire Partners LLC, which is our largest shareholder that beneficially owns approximately 30.7% of the Company as of September 24, 2023.

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SUBSEQUENT EVENTS	9 Months Ended
	Sep. 24, 2023
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On September 29, 2023 the Company borrowed $7.0 million under the 2023 Revolver Facility. The interest rate on the Revolver Facility is 8.17%. As a result, as of September 29, 2023, the outstanding balance of the 2023 Revolver Facility upon borrowing is $7.0 million and $88.7 million is available to the Company under the 2023 Revolver Facility.The Company opened one restaurant subsequent to September 24, 2023 for a total of 78 restaurants, excluding C&O. The restaurant is located in Cicero, Illinois

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Pay vs Performance Disclosure
Net income attributable to Portillo's Inc.	$ 4,361	$ 1,592	$ 10,635	$ 6,897

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Insider Trading Arrangements

3 Months Ended

9 Months Ended

Sep. 24, 2023

shares

Sep. 24, 2023

shares

Trading Arrangements, by Individual

Material Terms of Trading Arrangement

During the quarter ended September 24, 2023, the following officers of the Company adopted a "Rule 10b5-1 trading arrangement” as defined in Item 408(a) of Regulation S-K:

Name/ Title	Type of Plan	Adoption Date	Expiration Date	Aggregate Number of Securities to be Sold	Plan Description
Michael Osanloo, President/CEO and Director	10b5-1 Trading Plan	August 7, 2023	May 1, 2024	82,819	Sale of Shares
Derrick Pratt, Chief Operating Officer	10b5-1 Trading Plan	August 7, 2023	July 31, 2024	37,388	Sale of Shares
Nicholas Scarpino, SVP, Marketing and Off-Premise Dining	10b5-1 Trading Plan	August 7, 2023	June 6, 2024	96,722	Exercise of Options and Sale of Shares

Non-Rule 10b5-1 Arrangement Adopted

false

Rule 10b5-1 Arrangement Terminated

false

Non-Rule 10b5-1 Arrangement Terminated

false

Michael Osanloo [Member]

Trading Arrangements, by Individual

Name

Michael Osanloo

Title

President/CEO and Director

Rule 10b5-1 Arrangement Adopted

true

Adoption Date

August 7, 2023

Arrangement Duration

268 days

Aggregate Available

82,819

82,819

Derrick Pratt [Member]

Trading Arrangements, by Individual

Name

Derrick Pratt

Title

Chief Operating Officer

Rule 10b5-1 Arrangement Adopted

true

Adoption Date

August 7, 2023

Arrangement Duration

359 days

Aggregate Available

37,388

37,388

Nicholas Scarpino [Member]

Trading Arrangements, by Individual

Name

Nicholas Scarpino

Title

SVP, Marketing and Off-Premise Dining

Rule 10b5-1 Arrangement Adopted

true

Adoption Date

August 7, 2023

Arrangement Duration

304 days

Aggregate Available

96,722

96,722

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

9 Months Ended

Sep. 24, 2023

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The Company has prepared the accompanying unaudited condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial statements and pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments necessary for a fair presentation of our financial position and results of operations. Interim results of operations are not necessarily indicative of the results that may be achieved for the full year. The financial statements and related notes do not include all information and footnotes required by GAAP for annual reports. The unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 25, 2022.

Consolidation

All intercompany balances and transactions have been eliminated in consolidation.

Segment Reporting

Segment Reporting

The Company owns and operates fast-casual restaurants in the United States, along with two food production commissaries in Illinois. The Company’s chief operating decision maker (the “CODM”) is its Chief Executive Officer ("CEO"). The CODM reviews financial performance and allocates resources at a consolidated level on a recurring basis. The Company has one operating segment and one reportable segment.

Fiscal Year

Fiscal Year

The Company uses a 52- or 53-week fiscal year ending on the Sunday prior to or on December 31. In a 52-week fiscal year, each quarterly period is comprised of 13 weeks. The additional week in a 53-week fiscal year is added to the fourth quarter. Fiscal 2023 and 2022 consist of 53 and 52 weeks, respectively. The fiscal periods presented in this report are the quarters and three quarters ended September 24, 2023 and September 25, 2022, respectively.

Use of Estimates

Use of EstimatesThe 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 liabilities at the date of the financial statements, and the reported amounts of sales and expenses during the period. Actual results could differ from those estimates.

Recently Adopted Accounting Standards

Recently Adopted Accounting Standards

In March 2020, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The pronouncement provides temporary optional expedients and exceptions to the current guidance on contract modifications and hedge accounting to ease the financial reporting burden related to the expected market transition from the London Interbank Offered Rate ("LIBOR") and other interbank offered rates to alternative reference rates. The guidance was effective upon issuance and generally can be applied to applicable contract modifications through December 31, 2022. FASB has extended the sunset date to December 31, 2024. The Company does not believe the impact of the transition from LIBOR to alternative reference rates is material to its consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASC 842"), along with related clarifications and improvements. The pronouncement requires lessees to recognize a liability, which represents the discounted obligation to make future minimum lease payments, and a corresponding right-of-use asset on the balance sheet. The guidance requires disclosure of key information about leasing arrangements that is intended to give financial statement users the ability to assess the amount, timing, and potential uncertainty of cash flows related to leases. The update is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted this standard effective December 27, 2021, electing the modified retrospective approach to apply the standard as of the transition date. We have elected the transition package of three practical expedients permitted under the new standard, which eliminates the requirement to reassess the conclusions about historical lease identifications, lease classifications, and initial direct costs. We did not elect the hindsight practical expedient, which permits the use of hindsight when determining lease terms and impairments of right-of-use assets. We elected to apply the practical expedient of combining lease and non-lease components. Additionally, we elected to utilize the short-term lease exception policy, which allows us to not apply the recognition requirements of this standard to leases with a term of 12 months or less. The adoption of this standard had a significant impact on the Company’s condensed consolidated balance sheet as we recognized the right-of-use asset and lease liabilities for our operating leases. The adoption had an immaterial impact on the condensed consolidated statement of operations, cash flows and overall liquidity. See Note 9. Leases for additional information.

The Company reviewed all other recently issued accounting pronouncements and concluded that they were either not applicable or not expected to have a significant impact to its condensed consolidated financial statements.

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REVENUE RECOGNITION (Tables)

9 Months Ended

Sep. 24, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Gift Card Liability

The gift card liability included in current deferred revenue on the condensed consolidated balance sheets is as follows (in thousands):

	September 24, 2023		December 25, 2022
Gift card liability	$	4,046	$	6,988

Revenue recognized in the condensed consolidated statement of operations for the redemption of gift cards that were included in their respective liability balances at the beginning of the year is as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Revenue recognized from gift card liability balance at the beginning of the year	$	599	$	534	$	3,436	$	3,215

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INVENTORIES (Tables)

9 Months Ended

Sep. 24, 2023

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
Raw materials	$	4,119	$	5,722
Work in progress	249		104
Finished goods	1,089		876
Consigned inventory	961		685
	$	6,418	$	7,387

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PROPERTY & EQUIPMENT, NET (Tables)

9 Months Ended

Sep. 24, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
Land improvements	$	17,854	$	16,369
Furniture, fixtures, and equipment	146,027		126,130
Leasehold improvements	192,393		153,341
Transportation equipment	2,647		2,281
Construction-in-progress	36,139		35,386
	395,060		333,507
Less accumulated depreciation	(120,455)		(106,471)
	$	274,605	$	227,036

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GOODWILL & INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 24, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Indefinite-Lived Intangibles, Net

Intangibles, net consisted of the following (in thousands):

	September 24, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(26,483)		29,634
	$	280,042	$	(26,483)	$	253,559

	December 25, 2022
	Gross Carrying Amount		Accumulated Amortization		ASC 842 Adjustment		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(24,317)		—		31,800
Covenants not-to-compete	40,799		(40,799)		—		—
Favorable rental contracts	2,991		(1,849)		(1,142)		—
	$	323,832	$	(66,965)	$	(1,142)	$	255,725

Schedule of Finite-Lived Intangibles, Net

Intangibles, net consisted of the following (in thousands):

	September 24, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(26,483)		29,634
	$	280,042	$	(26,483)	$	253,559

	December 25, 2022
	Gross Carrying Amount		Accumulated Amortization		ASC 842 Adjustment		Net Carrying Amount
Indefinite-lived intangible assets:
Trade names	$	223,925	$	—	$	—	$	223,925
Intangibles subject to amortization:
Recipes	56,117		(24,317)		—		31,800
Covenants not-to-compete	40,799		(40,799)		—		—
Favorable rental contracts	2,991		(1,849)		(1,142)		—
	$	323,832	$	(66,965)	$	(1,142)	$	255,725

Schedule of Aggregate Amortization Expense

The estimated aggregate amortization expense related to intangible assets held at September 24, 2023 for the remainder of this year and the succeeding five years and thereafter is as follows (in thousands):

	Estimated Amortization
2023 (excluding the three quarters ended September 24, 2023)	$	723
2024	2,813
2025	2,707
2026	2,707
2027	2,707
2028	2,707
2029 and thereafter	15,270
	$	29,634

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 24, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Mutual Fund Investments and Deferred Compensation Obligations

As of September 24, 2023 and December 25, 2022, the fair value of the mutual fund investments and deferred compensation obligations were as follows (in thousands):

	September 24, 2023		December 25, 2022
	Level 1		Level 1
Assets - Investments designated for deferred compensation plan
Cash/money accounts	$	1,027	$	1,470
Mutual funds	2,381		2,241
Total assets	$	3,408	$	3,711

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DEBT (Tables)

9 Months Ended

Sep. 24, 2023

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Debt consisted of the following (in thousands):

	September 24, 2023		December 25, 2022
2023 Term Loan	$	298,125	$	—
2014 Term B-3 Loans	—		322,428
Unamortized discount and debt issuance costs	(3,139)		(3,848)
Total debt, net	294,986		318,580
Less: Current portion of long-term debt	(7,500)		(4,155)
Long-term debt, net	$	287,486	$	314,425

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LEASES (Tables)

9 Months Ended

Sep. 24, 2023

Leases [Abstract]

Schedule of Operating Lease Right-of-use Assets and Liabilities

A summary of operating lease right-of-use assets and liabilities is as follows (in thousands):

Operating leases	Classification	September 24, 2023		December 25, 2022
Right-of-use assets	Operating lease assets	$	191,488	$	166,808
		191,488		166,808
Current lease liabilities	Short-term operating lease liability	5,048		4,849
Non-current lease liabilities	Long-term operating lease liability	234,699		200,166
		$	239,747	$	205,015

Schedule of Components of Lease Expense

The components of lease expense were as follows (in thousands):

		Quarter Ended		Three Quarters Ended
Operating leases	Classification	September 24, 2023		September 24, 2023
Operating lease cost	Occupancy Other operating expenses General and administrative expenses Pre-opening expenses	$	7,325	$	21,160
Short-term operating lease cost	Occupancy Other operating expenses	202		534
Variable lease cost	Occupancy Other operating expenses General and administrative expenses	751		2,773
		$	8,278	$	24,467

Supplemental cash flow information related to leases is as follows (in thousands):

	Quarter Ended		Three Quarters Ended
	September 24, 2023		September 24, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	5,909	$	17,490
Operating lease assets obtained in exchange for lease liabilities:
Operating leases	14,006		29,103

Schedule of Lease Terms and Discount Rates

A summary of lease terms and discount rates for operating leases is as follows:

Operating leases	September 24, 2023		December 25, 2022
Weighted-average remaining lease term (years):	25.6		25.0
Weighted-average discount rate:	9.7	%	9.8	%

Schedule of Maturity Analysis of Lease Liabilities

As of September 24, 2023, the maturity analysis of the lease liabilities consisted of the following (in thousands):

Year Ending	Operating Leases
2023 (excluding the three quarters ended September 24, 2023)	$	6,153
2024	25,814
2025	25,902
2026	25,986
2027	25,265
Thereafter	626,740
Total lease payments	735,860
Less: imputed interest	(496,113)
Total operating lease liabilities	$	239,747

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NON-CONTROLLING INTERESTS (Tables)

9 Months Ended

Sep. 24, 2023

Noncontrolling Interest [Abstract]

Schedule of LLC Interest Ownership by Portillo's Inc. and Pre-IPO LLC Members

The following table summarizes the LLC interest ownership by Portillo's Inc. and pre-IPO LLC members:

	September 24, 2023			December 25, 2022
	LLC Units	Ownership %		LLC Units	Ownership %
Portillo's Inc.	55,182,141	76.0	%	48,420,723	67.0	%
pre-IPO LLC Members	17,472,926	24.0	%	23,837,162	33.0	%
Total	72,655,067	100.0	%	72,257,885	100.0	%

Schedule of Effects of Changes in Ownership in Portillo's OpCo on the Company’s Equity

The following table summarizes the effects of changes in ownership in Portillo's OpCo on the Company’s equity (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Net income attributable to Portillo's Inc.	$	4,361	$	1,592	$	10,635	$	6,897
Activity under equity-based compensation plans	400		271		1,688		1,718
Non-controlling interest adjustment	218		43,811		48,063		44,533
Redemption of LLC Units	—		(59)		(64)		(59)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	—		—		(13,682)		—
Total effect of changes in ownership interest on equity attributable to Portillo's Inc.	$	4,979	$	45,615	$	46,640	$	53,089

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EQUITY-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 24, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Equity-Based Compensation Expense

Equity-based compensation expense included in the Company’s consolidated statements of operations is as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Labor	$	379	$	331	$	1,164	$	1,020
General and administrative expenses	3,945		3,367		10,880		10,327
Total equity-based compensation expense	$	4,324	$	3,698	$	12,044	$	11,347

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EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 24, 2023

Earnings Per Share [Abstract]

Schedule of Computations of Basic and Diluted (Loss) Earnings per Share

The computations of basic and diluted earnings per share for the quarters and three quarters ended September 24, 2023 and September 25, 2022 are as follows (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Net income	$	6,546	$	3,198	$	15,171	$	14,504
Net income attributable to non-controlling interests	2,185		1,606		4,536		7,607
Net income attributable to Portillo's Inc.	$	4,361	$	1,592	$	10,635	$	6,897
Shares:
Weighted-average number of common shares outstanding-basic	55,127		38,899		53,231		36,899
Dilutive share awards	3,641		3,726		3,583		3,887
Weighted-average number of common shares outstanding-diluted	58,768		42,625		56,814		40,786
Basic net income per share	$	0.08	$	0.04	$	0.20	$	0.19
Diluted net income per share	$	0.07	$	0.04	$	0.19	$	0.17

Schedule of Units Excluded from Calculation of Diluted Earnings per Share

The following shares were excluded from the calculation of diluted earnings per share because they would be antidilutive (in thousands):

	Quarter Ended		Three Quarters Ended
	September 24, 2023	September 25, 2022	September 24, 2023	September 25, 2022
Shares subject to performance conditions	1,860	1,862	1,860	1,862
Shares that were antidilutive	5	14	5	—
Total shares excluded from diluted net income per share	1,865	1,876	1,865	1,862

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RELATED PARTY TRANSACTIONS (Tables)

9 Months Ended

Sep. 24, 2023

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

The Company incurred the following Olo-related costs for the quarter and three quarters ended September 24, 2023 and September 25, 2022 (in thousands):

	Quarter Ended				Three Quarters Ended
	September 24, 2023		September 25, 2022		September 24, 2023		September 25, 2022
Food, beverage and packaging costs	$	462	$	566	$	1,525	$	1,449
Other operating expenses	101		111		327		326
Net Olo-related costs	$	563	$	677	$	1,852	$	1,775

We are party to a TRA with certain members of Portillo's OpCo that provides for the payment by us of 85% of the amount of tax benefits, if any, that Portillo's Inc. actually realizes or in some cases is deemed to realize as a result of certain transactions. The Company made payments of $0.8 million under the TRA relating to tax year 2021 during the three quarters ended September 24, 2023. There were no amounts paid under the TRA during the quarter ended September 24, 2023 and quarter and three quarters ended September 25, 2022.

(in thousands)	September 24, 2023		December 25, 2022
Current portion of Tax Receivable Agreement liability	$	6,527	$	813
Tax receivable agreement liability	294,950		252,003

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DESCRIPTION OF BUSINESS (Details)		3 Months Ended			6 Months Ended
	Apr. 05, 2023 $ / shares shares	Mar. 26, 2023 $ / shares shares	Dec. 25, 2022 restaurant $ / shares shares	Sep. 25, 2022 $ / shares shares	Dec. 25, 2022 restaurant offering $ / shares	Sep. 24, 2023 restaurant state food_production_commissary
Schedule of Equity Method Investments [Line Items]
Number of states | state						10
Number of food production commissaries | food_production_commissary						2
Number of restaurants | restaurant			71		71	77
Number of non-traditional locations | restaurant			2		2	2
Portillo's Inc.
Schedule of Equity Method Investments [Line Items]
Number of shares issued in transaction (in shares)	6,350,717
Portillo's Inc. | Portillo's Opco
Schedule of Equity Method Investments [Line Items]
Ownership %			67.00%		67.00%	76.00%
Portillo's Inc. | Blocker Companies
Schedule of Equity Method Investments [Line Items]
Shares acquired (in shares)		2,269,776
Portillo's Inc. | Secondary Offering
Schedule of Equity Method Investments [Line Items]
Number of shares issued in transaction (in shares)		8,000,000	8,000,000	8,066,458
Sale of stock, price per share (in usd per share) | $ / shares		$ 21.05	$ 22.69	$ 23.75	$ 22.69
Number of offerings | offering					2
Portillo's Inc. | Over-Allotment Option
Schedule of Equity Method Investments [Line Items]
Number of shares issued in transaction (in shares)	620,493			66,458
Sale of stock, price per share (in usd per share) | $ / shares	$ 21.05
LLC Units
Schedule of Equity Method Investments [Line Items]
Redemption of LLC Interests (in shares)		6,350,717
Issuance (in shares)		6,350,717
pre-IPO LLC Members
Schedule of Equity Method Investments [Line Items]
Redemption of LLC Interests (in shares)		6,350,717
pre-IPO LLC Members | Portillo's Opco
Schedule of Equity Method Investments [Line Items]
Ownership %			33.00%		33.00%	24.00%
C&O
Schedule of Equity Method Investments [Line Items]
Ownership percentage						50.00%

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	9 Months Ended
	Sep. 24, 2023 segment food_production_commissary
Accounting Policies [Abstract]
Number of food production commissaries | food_production_commissary	2
Number of operating segments	1
Number of reportable segments	1

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REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Revenue from Contract with Customer [Abstract]
Gift card sales that will not be redeemed, percent	11.00%		11.00%
Gift card breakage	$ 200	$ 100	$ 688	$ 626

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REVENUE RECOGNITION - Gift Card Liability (Details) - Gift Card - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022	Dec. 25, 2022
Revenue from External Customer [Line Items]
Gift card liability	$ 4,046		$ 4,046		$ 6,988
Revenue recognized from gift card liability balance at the beginning of the year	$ 599	$ 534	$ 3,436	$ 3,215

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INVENTORIES (Details) - USD ($) $ in Thousands	Sep. 24, 2023	Dec. 25, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 4,119	$ 5,722
Work in progress	249	104
Finished goods	1,089	876
Consigned inventory	961	685
Total inventory	$ 6,418	$ 7,387

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PROPERTY & EQUIPMENT, NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022	Dec. 25, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 395,060		$ 395,060		$ 333,507
Less accumulated depreciation	(120,455)		(120,455)		(106,471)
Total property and equipment	274,605		274,605		227,036
Depreciation expense	5,500	$ 4,500	15,600	$ 13,400
Land improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	17,854		17,854		16,369
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	146,027		146,027		126,130
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	192,393		192,393		153,341
Transportation equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,647		2,647		2,281
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 36,139		$ 36,139		$ 35,386

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GOODWILL & INTANGIBLE ASSETS - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 24, 2023 USD ($)	Sep. 25, 2022 USD ($)	Sep. 24, 2023 USD ($) reporting_unit	Sep. 25, 2022 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reporting units | reporting_unit			1
Amortization expense | $	$ 0.7	$ 0.8	$ 2.2	$ 2.4

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GOODWILL & INTANGIBLE ASSETS - Schedule of Intangible Assets, Net (Details) - USD ($) $ in Thousands	Sep. 24, 2023	Dec. 25, 2022	Dec. 27, 2021
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 223,925	$ 223,925
Accumulated Amortization	(26,483)	(66,965)
Intangibles subject to amortization, net	29,634
Gross Carrying Amount	280,042	323,832
Net Carrying Amount	253,559	255,725
Adoption of Accounting Standards Codification 842 - Leases
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount			$ (1,142)
Recipes
Finite-Lived Intangible Assets [Line Items]
Intangibles subject to amortization, gross	56,117	56,117
Accumulated Amortization	(26,483)	(24,317)
Intangibles subject to amortization, net	$ 29,634	31,800
Covenants not-to-compete
Finite-Lived Intangible Assets [Line Items]
Intangibles subject to amortization, gross		40,799
Accumulated Amortization		(40,799)
Intangibles subject to amortization, net		0
Favorable rental contracts
Finite-Lived Intangible Assets [Line Items]
Intangibles subject to amortization, gross		2,991
Accumulated Amortization		(1,849)
Intangibles subject to amortization, net		$ 0
Favorable rental contracts | Adoption of Accounting Standards Codification 842 - Leases
Finite-Lived Intangible Assets [Line Items]
Intangibles subject to amortization, gross			$ (1,142)

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GOODWILL & INTANGIBLE ASSETS - Future Amortization Expense (Details) $ in Thousands	Sep. 24, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2023 (excluding the three quarters ended September 24, 2023)	$ 723
2024	2,813
2025	2,707
2026	2,707
2027	2,707
2028	2,707
2029 and thereafter	15,270
Intangibles subject to amortization, net	$ 29,634

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022	Dec. 25, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Asset impairment charges	$ 0	$ 0	$ 0	$ 0
Recurring | Level 1
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total assets	3,408,000		3,408,000		$ 3,711,000
Recurring | Level 1 | Cash/money accounts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total assets	1,027,000		1,027,000		1,470,000
Recurring | Level 1 | Mutual funds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total assets	$ 2,381,000		$ 2,381,000		$ 2,241,000

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DEBT - Schedule of Debt (Details) - USD ($) $ in Thousands	Sep. 24, 2023	Dec. 25, 2022
Debt Instrument [Line Items]
Unamortized discount and debt issuance costs	$ (3,139)	$ (3,848)
Total debt, net	294,986	318,580
Less: Current portion of long-term debt	(7,500)	(4,155)
Long-term debt, net	287,486	314,425
Line of Credit
Debt Instrument [Line Items]
Less: Current portion of long-term debt	(7,500)	(4,155)
Line of Credit | 2023 Term Loan | 2023 Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	298,125	0
Line of Credit | 2014 Term B-3 Loans
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	$ 322,428

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DEBT - Narrative (Details) - USD ($)				3 Months Ended		9 Months Ended
	Sep. 29, 2023	Feb. 02, 2023	Dec. 06, 2019	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022	Dec. 25, 2022	Aug. 01, 2014
Debt Instrument [Line Items]
Loss on debt extinguishment				$ 0	$ 0	$ 3,465,000	$ 0
Amortization of debt issuance costs				0.00	500,000	300,000	1,400,000
Amortization of debt discount				200,000	200,000	500,000	500,000
Interest cost				$ 6,573,000	$ 7,090,000	$ 20,539,000	$ 19,286,000
Revolving Credit Facility | New Revolver Facility | Subsequent Event
Debt Instrument [Line Items]
Interest rate at period end	8.17%
Line of credit	$ 7,000,000
Remaining borrowing capacity	88,700,000
Borrowed	$ 7,000,000
Line of Credit
Debt Instrument [Line Items]
Commitment fee percentage						0.25%
Letter of credit fee percentage				2.75%		2.75%
Fronting fee, percentage				0.125%		0.125%
Effective interest rate				8.50%	8.84%	8.50%	8.84%
Line of credit				$ 298,100,000		$ 298,100,000
Debt issuance costs		$ 3,600,000
Line of Credit | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Adjusted leverage ratio		0.00%
Line of Credit | One-Month Secured Overnight Financing Rate
Debt Instrument [Line Items]
Adjusted leverage ratio		0.10%
Line of Credit | Three-Month Secured Overnight Financing Rate
Debt Instrument [Line Items]
Adjusted leverage ratio		0.15%
Line of Credit | 2014 Term B-3 Loans
Debt Instrument [Line Items]
Aggregate principal amount			$ 332,400,000						$ 335,000,000
Interest rate (as of)							6.56%
Periodic principal payment						800,000
Payments of debt		$ 321,800,000
Loss on debt extinguishment						$ 3,500,000
Line of Credit | 2014 Term B-3 Loans | Eurocurrency Rate
Debt Instrument [Line Items]
Adjusted leverage ratio			5.50%
Increase in term loan percent			1.00%
Line of Credit | 2014 Revolving Facility
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity			$ 50,000,000
Line of Credit | 2023 Term Loan | Term Loans
Debt Instrument [Line Items]
Aggregate principal amount		300,000,000
Interest rate at period end				8.14%		8.14%
Annual amount for first year				$ 7,500,000		$ 7,500,000
Annual amount for second year				7,500,000		7,500,000
Annual amount for third year				15,000,000		15,000,000
Annual amount for fourth year				15,000,000		15,000,000
Annual amount for fifth year				30,000,000		30,000,000
Line of credit				298,100,000		298,100,000
Line of Credit | 2023 Term Loan | 2023 Revolver Facility
Debt Instrument [Line Items]
Line of credit				$ 0		$ 0
Line of Credit | 2023 Term Loan | New Revolver Facility
Debt Instrument [Line Items]
Interest rate at period end				8.14%		8.14%
Line of Credit | Revolving Credit Facility | 2023 Revolver Facility
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity		100,000,000
Line of Credit | Revolving Credit Facility | New Revolver Facility
Debt Instrument [Line Items]
Remaining borrowing capacity				$ 95,700,000		$ 95,700,000
Line of Credit | Revolving Credit Facility | 2014 Revolving Facility
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity		$ 50,000,000							30,000,000
Interest rate at period end					3.25%		3.25%
Commitment fee percentage							0.25%
Line of credit								$ 0
Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Line of credit maximum borrowing capacity									$ 7,500,000
Line of credit								$ 4,200,000
Line of Credit | Letter of Credit | New Revolver Facility
Debt Instrument [Line Items]
Letters of credit				$ 4,300,000		$ 4,300,000
Line of Credit | Letter of Credit | Credit Agreement
Debt Instrument [Line Items]
Fronting fee, percentage					0.125%		0.125%

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LEASES - Balance Sheet Classification of Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 24, 2023	Dec. 25, 2022
Leases [Abstract]
Operating lease assets	$ 191,488	$ 166,808
Current lease liabilities	5,048	4,849
Non-current lease liabilities	234,699	200,166
Right-of-use assets	$ 239,747	$ 205,015

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LEASES - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 24, 2023	Sep. 24, 2023
Leases [Abstract]
Operating lease cost	$ 7,325	$ 21,160
Short-term operating lease cost	202	534
Variable lease cost	751	2,773
Operating leases	$ 8,278	$ 24,467

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LEASES - Schedule of Lease Terms and Discount Rates (Details)	Sep. 24, 2023	Dec. 25, 2022
Leases [Abstract]
Weighted-average remaining lease term (years):	25 years 7 months 6 days	25 years
Weighted-average discount rate:	9.70%	9.80%

XML

LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 24, 2023	Sep. 24, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$ 5,909	$ 17,490
Operating lease assets obtained in exchange for lease liabilities:
Operating leases	$ 14,006	$ 29,103

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LEASES - Maturities of Operating and Financing Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 24, 2023	Dec. 25, 2022
Operating Leases
2023 (excluding the three quarters ended September 24, 2023)	$ 6,153
2024	25,814
2025	25,902
2026	25,986
2027	25,265
Thereafter	626,740
Total lease payments	735,860
Less: imputed interest	(496,113)
Total operating lease liabilities	$ 239,747	$ 205,015

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LEASES - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 24, 2023 USD ($)
Leases [Abstract]
Options to extend lease	$ 433.5
Minimum payments for leases signed but not yet commenced	$ 32.2

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NON-CONTROLLING INTERESTS - Narrative (Details) - shares	3 Months Ended			9 Months Ended
	Sep. 24, 2023	Mar. 26, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Portillo's Opco
Noncontrolling Interest [Line Items]
Weighted average ownership percentage	24.10%		45.90%	26.60%	48.50%
LLC Units
Noncontrolling Interest [Line Items]
Redemption of LLC Interests (in shares)		6,350,717
Stock received, newly-issued LLC units (in shares)				6,350,717

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NON-CONTROLLING INTERESTS - Schedule of LLC Interest Ownership by Portillo's Inc. and Pre-IPO LLC Members (Details) - shares	Sep. 24, 2023	Dec. 25, 2022
Portillo's Inc.
Noncontrolling Interest [Line Items]
Total	100.00%	100.00%
LLC Units
Noncontrolling Interest [Line Items]
LLC Interests (in shares)	72,655,067	72,257,885
Portillo's Inc. | Portillo's Inc.
Noncontrolling Interest [Line Items]
Ownership %	76.00%	67.00%
Portillo's Inc. | LLC Units
Noncontrolling Interest [Line Items]
LLC Interests (in shares)	55,182,141	48,420,723
pre-IPO LLC Members | Portillo's Inc.
Noncontrolling Interest [Line Items]
Ownership %	24.00%	33.00%
pre-IPO LLC Members | LLC Units
Noncontrolling Interest [Line Items]
LLC Interests (in shares)	17,472,926	23,837,162

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NON-CONTROLLING INTERESTS - Changes in Ownership in Portillo's OpCo on the Company’s Equity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Noncontrolling Interest [Abstract]
Net income attributable to Portillo's Inc.	$ 4,361	$ 1,592	$ 10,635	$ 6,897
Transfers from (to) non-controlling interests:
Activity under equity-based compensation plans	400	271	1,688	1,718
Non-controlling interest adjustment	218	43,811	48,063	44,533
Redemption of LLC Units	0	(59)	(64)	(59)
Establishment of liabilities under Tax Receivable Agreement and related changes to deferred tax assets associated with increases in tax basis	0	0	(13,682)	0
Total effect of changes in ownership interest on equity attributable to Portillo's Inc.	$ 4,979	$ 45,615	$ 46,640	$ 53,089

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EQUITY-BASED COMPENSATION - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation expense	$ 4,324	$ 3,698	$ 12,044	$ 11,347
Labor
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation expense	379	331	1,164	1,020
General and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total equity-based compensation expense	$ 3,945	$ 3,367	$ 10,880	$ 10,327

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EQUITY-BASED COMPENSATION - Narrative (Details)	3 Months Ended	9 Months Ended
	Sep. 24, 2023 tranche $ / shares shares	Sep. 24, 2023 $ / shares shares
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value, granted (in usd per share) | $ / shares	$ 20.51	$ 20.51
Vesting period		3 years
RSUs | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		33.00%
RSUs | Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		33.00%
RSUs | Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		33.00%
RSUs | Share-Based Payment Arrangement, Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) | shares	10,376	247,188
RSUs | Share-Based Payment Arrangement, Nonemployee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) | shares		56,488
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares) | shares	6,196	21,210
Options available for issuance (in shares) | shares	220,782	220,782
PSOs | Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted options award (in shares) | shares	52,173
Grant date fair value award (in usd per share) | $ / shares	$ 2.30
Tranches based on stock performance conditions | tranche	3
Termination period	10 years
PSOs | Executive Officer | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.00%
Vesting period	3 years
Number of trading days used to calculate volume-weighted average price	20 days
Threshold volume-weighted average price for vesting of awards (in usd per share) | $ / shares	$ 30.00	$ 30.00
Threshold volume-weighted average price as a percent of IPO price	1.5
PSOs | Executive Officer | Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.00%
Vesting period	4 years
Number of trading days used to calculate volume-weighted average price	20 days
Threshold volume-weighted average price for vesting of awards (in usd per share) | $ / shares	$ 40.00	40.00
Threshold volume-weighted average price as a percent of IPO price	2
PSOs | Executive Officer | Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	33.00%
Vesting period	5 years
Number of trading days used to calculate volume-weighted average price	20 days
Threshold volume-weighted average price for vesting of awards (in usd per share) | $ / shares	$ 50.00	$ 50.00
Threshold volume-weighted average price as a percent of IPO price	2.5

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INCOME TAXES (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 24, 2023	Mar. 26, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022	Dec. 25, 2022
Income Tax Contingency [Line Items]
Effective income tax rate percent	28.60%		23.90%	19.20%	19.50%
Deferred tax assets from Tax Receivable Agreement		$ 37,500,000
Additional tax receivable liability		$ 51,200,000
Tax receivable agreement liability	$ 301,500,000			$ 301,500,000
TRA amounts paid	0		$ 0	800,000	$ 0
Expected payment	$ 6,527,000			$ 6,527,000		$ 813,000
LLC Units
Income Tax Contingency [Line Items]
Redemption of LLC Interests (in shares)		6,350,717

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EARNINGS PER SHARE - Schedule of Basic and Diluted (Loss) Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Earnings Per Share [Abstract]
Net income	$ 6,546	$ 3,198	$ 15,171	$ 14,504
Net income attributable to non-controlling interests	2,185	1,606	4,536	7,607
NET INCOME ATTRIBUTABLE TO PORTILLO'S INC.	$ 4,361	$ 1,592	$ 10,635	$ 6,897
Shares:
Weighted-average number of common shares outstanding-basic (in shares)	55,127,133	38,899,373	53,231,086	36,899,208
Dilutive share awards (in shares)	3,641,000	3,726,000	3,583,000	3,887,000
Weighted-average number of common shares outstanding-diluted (in shares)	58,767,812	42,625,160	56,813,653	40,785,766
Basic net income per share (in usd per share)	$ 0.08	$ 0.04	$ 0.20	$ 0.19
Diluted net income per share (in usd per share)	$ 0.07	$ 0.04	$ 0.19	$ 0.17

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EARNINGS PER SHARE - Schedule of Units Excluded from Calculation of Diluted Earnings per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income per share (in shares)	1,865	1,876	1,865	1,862
Shares subject to performance conditions
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income per share (in shares)	1,860	1,862	1,860	1,862
Shares that were antidilutive
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total shares excluded from diluted net income per share (in shares)	5	14	5	0

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RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 24, 2023	Sep. 25, 2022	Sep. 24, 2023	Sep. 25, 2022	Dec. 25, 2022
Related Party Transaction [Line Items]
Accounts and tenant improvement receivables	$ 14,962,000		$ 14,962,000		$ 8,590,000
Food, beverage and packaging costs	55,551,000	$ 53,374,000	165,407,000	$ 151,414,000
Other operating expenses	18,571,000	16,882,000	56,107,000	47,225,000
Total restaurant operating expenses	124,920,000	117,033,000	372,612,000	335,769,000
Accounts payable	33,481,000		$ 33,481,000		30,273,000
TRA obligation percent			85.00%
TRA amounts paid	0	0	$ 800,000	0
Current portion of Tax Receivable Agreement liability	6,527,000		6,527,000		813,000
Tax receivable agreement liability	$ 294,950,000		$ 294,950,000		252,003,000
Portillo's Inc. | Berkshire Partners LLC
Related Party Transaction [Line Items]
Ownership %	30.70%		30.70%
Related party
Related Party Transaction [Line Items]
Accounts and tenant improvement receivables	$ 300,000		$ 300,000		300,000
Food, beverage and packaging costs	462,000	566,000	1,525,000	1,449,000
Other operating expenses	101,000	111,000	327,000	326,000
Total restaurant operating expenses	563,000	$ 677,000	1,852,000	$ 1,775,000
Accounts payable	$ 100,000		$ 100,000		$ 200,000

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SUBSEQUENT EVENTS (Details) $ in Millions		1 Months Ended
	Sep. 29, 2023 USD ($)	Nov. 02, 2023 restaurant	Sep. 24, 2023 restaurant	Dec. 25, 2022 restaurant
Subsequent Event [Line Items]
Number of restaurants | restaurant			77	71
Subsequent Event
Subsequent Event [Line Items]
Number of new restaurants | restaurant		1
Number of restaurants | restaurant		78
Revolving Credit Facility | 2023 Revolver Facility | Subsequent Event
Subsequent Event [Line Items]
Borrowed | $	$ 7.0
Interest rate at period end	8.17%
Line of credit | $	$ 7.0
Remaining borrowing capacity | $	$ 88.7