Form 8-K

8-K — Shake Shack Inc.

Accession: 0001104659-26-038234

Filed: 2026-04-01

Period: 2026-04-01

CIK: 0001620533

SIC: 5810 (RETAIL-EATING & DRINKING PLACES)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2610761d1_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2610761d1_ex99-1.htm)

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington,

D.C. 20549

FORM

8-K

CURRENT

REPORT

Pursuant

to Section 13 OR 15(d) of The Securities Exchange Act of 1934

April 1, 2026

Date

of Report (Date of earliest event reported)

SHAKE

SHACK INC.

(Exact

name of registrant as specified in its charter)

Delaware

001-36823

47-1941186

(State

or other jurisdiction of

incorporation

or organization)

(Commission

File

Number)

(IRS

Employer

Identification

No.)

225

Varick Street, Suite 301

New

York, New York

10014

(Address

of principal executive offices)

(Zip

Code)

(646)

747-7200

(Registrant's

telephone number, including area code)

Not applicable

(Former

name or former address, if changed since last report)

Check

the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant

under any of the following provisions:

Written

communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting

material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement

communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement

communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities

registered pursuant to Section 12(b) of the Act

Title of each class

Trading symbol(s)

Name of each exchange on which

registered

Class A Common Stock, par value $0.001

SHAK

New

York Stock Exchange

Indicate

by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR

§230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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. ¨

Item 7.01 Regulation FD Disclosure.

On April 1, 2026, Shake Shack Inc. (the “Company”)

issued a press release announcing Project Catalyst, the Company’s comprehensive technology initiative, and reiterating the Company’s

previously issued guidance. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and shall

not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference

in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number

99.1

Press Release dated April 1, 2026

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements

of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto

duly authorized.

Shake Shack Inc.

(Registrant)

Dated: April 1, 2026

By:

/s/ Alison Sternberg

Alison Sternberg

Head of Investor Relations

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2610761d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

Shake Shack Introduces Project Catalyst to

Scale

Core Technology, AI, and Digital Capabilities

On Road To 1,500 Company-Operated Shacks

Technology strategy will improve core systems,

enhance AI capabilities, and launch the brand’s first-ever loyalty platform to support the next phase of growth and deliver Enlightened

Hospitality at scale

The Company Reiterates First Quarter and Fiscal

Year 2026 Guidance

NEW YORK, April 1, 2026 – Shake

Shack Inc. (“Shake Shack” or the “Company”) (NYSE: SHAK) today announced Project Catalyst, a comprehensive technology

initiative to scale its digital, data, and operational platforms as the Company expands to 1,500 Company-operated Shacks.

Grounded in Shake Shack’s commitment to

Enlightened Hospitality, Project Catalyst focuses on modernizing restaurant systems, launching the brand’s first loyalty platform,

expanding AI capabilities, and advancing its data foundation to improve operational efficiency, deepen guest engagement, and unlock enterprise

productivity.

“Shake Shack

is entering a significant phase of growth and building the right foundation to support that scale

is a top priority,” said Rob Lynch, Chief Executive Officer of Shake Shack. “Project Catalyst

strengthens the technology and digital capabilities that power our restaurants and connect us more meaningfully with our guests. These

investments will help our teams operate more efficiently, enhance the guest experience, and position Shake Shack to scale successfully

toward 1,500 Company-operated Shacks.”

Key Elements of Project Catalyst

Modern POS and Kitchen Display Systems

Shake Shack has engaged Qu, a cloud-native unified

commerce platform built for fast-growing restaurant brands, to evolve its POS and Kitchen Display Systems and improve throughput, accuracy,

and operational execution. Enhanced kitchen orchestration and seamless ordering across digital and in-Shack channels streamline operations

and elevate consistency across every guest interaction. Qu’s proprietary in-store cloud and edge computing solution, Qube®,

enables faster, more precise service, particularly during peak demand, while empowering team members to stay focused on delivering Shake

Shack’s signature hospitality.

Shake Shack’s First Loyalty Platform

Shake Shack is developing its first loyalty platform,

a modern guest engagement solution designed to strengthen guest relationships, drive frequency, and reach new guests looking for enhanced

experiences and hospitality.

The platform will integrate across POS and digital

channels to enable more personalized communication and experiences, allowing Shake Shack to advance its promotional strategy toward deeper

engagement that drives retention, frequency, and long-term guest value.

Expanded AI Capabilities

Shake Shack is bringing to life a new generation

of proprietary AI capabilities to enhance restaurant operations, elevate guest engagement, and drive enterprise productivity, with significantly

more innovation planned over time.

These capabilities are focused on delivering

real-time operational insights, enabling faster and more informed decision-making, and providing intelligent support to restaurant operators

and support teams. By embedding AI into daily workflows, Shake Shack is enabling teams to better understand performance, identify opportunities,

and act with greater speed and precision.

At the center of this vision is an intelligent

operating layer for every Shack, surfacing proactive insights, alerts, and recommendations that help operators run great restaurants every

day.

Together, these capabilities form the foundation

of Shake Shack’s AI roadmap, with continued expansion planned to unlock new efficiencies, accelerate decision-making, and further

personalize the guest experience at scale.

Data & Insight Platforms

Project Catalyst advances Shake Shack’s

data foundation, enabling faster, more consistent access to actionable insights across the business.

By bringing together operational data, guest

behavior, and advanced analytics, Shake Shack is creating a unified view of performance that supports better decision-making at every

level of the organization. These capabilities will enable more personalized guest experiences, improved service speed and accuracy, and

stronger operational execution across the system.

This foundation will also serve as the backbone

for Shake Shack’s expanding AI capabilities, with continued investment to unlock deeper insights, automation, and scale.

“As Shake Shack continues to grow, we’re

building a technology platform designed to scale with the business,” said Justin Mennen, Chief Information and Technology Officer

of Shake Shack. “Project Catalyst brings together modern restaurant systems, advanced data platforms, and AI-driven capabilities

that help our teams operate more efficiently and make faster decisions. By connecting our POS, digital, loyalty, and AI capabilities into

one ecosystem, we’re creating the foundation to deliver Enlightened Hospitality at scale.”

Financial Outlook

In conjunction with this announcement, the Company

is reiterating its First Quarter and Fiscal Year 2026 guidance along with its Three-Year Financial Targets provided in its Q4 2025

Shake Shack Shareholder Letter. The Company’s stated guidance incorporates the planned impacts and encompassing technology

initiatives associated with Project Catalyst.

About Shake Shack

Shake Shack serves elevated

versions of American classics using only the best ingredients. It’s known for its delicious made-to-order Angus beef burgers, crispy

chicken, hand-spun milkshakes, house-made lemonades, beer, wine, and more. With its high-quality food at a great value, warm hospitality,

and a commitment to crafting uplifting experiences, Shake Shack quickly became a cult-brand with widespread appeal. Shake Shack’s

purpose is to Stand For Something Good®, from its premium ingredients and employee development, to its inspiring designs and deep

community investment. Since the original Shack opened in 2004 in NYC’s Madison Square Park, the Company has expanded to over 670

locations system-wide, including close to 430 in 35 U.S. States and the District of Columbia, and over 240 international locations across

London, Hong Kong, Shanghai, Singapore, Mexico City, Istanbul, Dubai, Tokyo, Seoul and more.

Skip the line with the Shack

App, a mobile ordering app that lets you save time by ordering ahead! Guests can select their location, pick their food, choose a

pickup time and their meal will be cooked-to-order and timed to arrival. Available on iOS and Android.

Learn more: shakeshack.com

| IG: @shakeshack | X: @shakeshack | facebook.com/shakeshack

Cautionary Statements

This press release contains forward-looking statements,

within the meaning of the Private Securities Litigation Reform Act of 1995, which are subject to known and unknown risks, uncertainties

and other important factors that may cause actual results to be materially different from the statements made herein. All statements other

than statements of historical fact included herein are forward-looking statements, including, but not limited to, statements about the

implementation and outcome of our technology initiatives and the guidance provided for the first quarter of 2026 and the full 2026 fiscal

year and the Company’s three-year financial targets for fiscal years 2025 through 2027.

All forward-looking statements are expressly

qualified in their entirety by these cautionary statements. Some of the factors which could cause the outcome of these forward-looking

statements or results to differ materially from the Company’s expectations include the Company’s ability to develop and open

new Shacks on a timely basis, increased costs or shortages or interruptions in the supply and delivery of our products, increased labor

costs or shortages, inflationary pressures, the impact of tariffs, the impact of Shack closures, the Company’s management of its

digital capabilities and expansion into new channels, as well as its kiosk, drive-thru and multiple format investments, the risks associated

with the implementation of Project Catalyst, including the Company’s ability to deploy new point-of-sale, kitchen display, and loyalty

systems on the anticipated timeline and within projected cost parameters, the risk that third-party technology vendors fail to perform,

scale, or deliver contracted services, the risk that the Company’s AI capabilities do not perform as intended or fail to deliver

expected operational efficiencies, data privacy, cybersecurity, or regulatory risks arising from the collection and processing of guest

and operational data, and the risk that the Company is unable to integrate its POS, digital, loyalty, and AI capabilities into its business,

the Company’s ability to maintain and grow sales at its existing Shacks, and risks relating to the restaurant industry generally.

You should evaluate all forward-looking statements made herein in the context of the risks and uncertainties disclosed in the Company’s

Annual Report on Form 10-K for the fiscal year ended December 31, 2025 as filed with the Securities and Exchange Commission.

Media:

Meg Davis, Shake Shack

mcastranova@shakeshack.com

Investor Relations:

Alison Sternberg, Shake Shack

Head of Investor Relations

(844) SHACK-04 (844-742-2504)

investor@shakeshack.com

Source: Shake Shack Inc.

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