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6-K

Atour Lifestyle Holdings Ltd (ATAT)

6-K 2026-04-17 For: 2026-04-17
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Added on April 17, 2026

UNITED STATES

SECURITIES AND EXCHANGECOMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATEISSUER

PURSUANT TO RULE 13a-16OR 15d-16 UNDER

THE SECURITIES EXCHANGEACT OF 1934

For the month of April 2026

Commission File Number:001-40540

Atour Lifestyle HoldingsLimited

(Exact name of registrantas specified in its charter)

1st floor, Wuzhong Building,

618 Wuzhong Road, MinhangDistrict,

Shanghai, 201103, People’sRepublic of China

(+86) 021-64059928

(Address of principalexecutive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F x Form 40-F ¨

EXHIBIT INDEX

Exhibit No. Description
99.1 Press Release — Atour Lifestyle Holdings Limited Files 2025 Annual Report on Form 20-F

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Atour Lifestyle Holdings Limited
By: /s/ HAIJUN WANG
Name: Haijun Wang
Title: Chairman of the Board of Director and Chief Executive Officer
Date: April 17, 2026

Exhibit 99.1

Atour Lifestyle Holdings Limited Files 2025Annual Report on Form 20-F

SHANGHAI, April 17, 2026 /GlobeNewswire/ -- Atour Lifestyle Holdings Limited (“Atour” or the “Company”) (NASDAQ: ATAT), a leading lifestyle group in China, today announced that the Company has filed its annual report on Form 20-F for the fiscal year ended December 31, 2025 with the U.S. Securities and Exchange Commission (“SEC”) on April 17, 2026.

The annual report is available on the Company’s investor relations website at https://ir.yaduo.com, and on the SEC’s website at https://www.sec.gov. The Company will provide hard copies of the annual report, free of charge, to its shareholders and ADS holders upon written request. Requests should be directed to the Company’s Investor Relations Department, Atour Lifestyle Holdings Limited, 20th floor, Wuzhong Building, 618 Wuzhong Road, Minhang District, Shanghai, 200433, People’s Republic of China.

About Atour Lifestyle Holdings Limited

Atour Lifestyle Holdings Limited (NASDAQ: ATAT) is a leading lifestyle group in China that operates both hospitality and retail businesses. As a leader in quality living, Atour is dedicated to creating an intimate ambiance where people can warmly connect. Guided by its people-serving philosophy, Atour continuously refines its products and services to curate exceptional experiences for every user.

For more information, please visit https://ir.yaduo.com.

Investor Relations Contact

Atour Lifestyle Holdings Limited

Email: [email protected]

Christensen Advisory

Email: [email protected]

Tel: +86-10-5900-1548