6-K

UNITEDSTATES

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

REPORTOF FOREIGN PRIVATE ISSUERPURSUANT TO RULE 13a-16 OR 15d-16OF THE SECURITIES EXCHANGE ACT OF 1934

Forthe Month of December 2025

CommissionFile Number: 001-41569

LANVINGROUP HOLDINGS LIMITED

4F,168 Jiujiang Road,Carlowitz & Co, Huangpu DistrictShanghai, 200001, China(Address of principal executive offices)

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

INCORPORATION BY REFERENCE

This current report on Form 6-K is incorporated by reference into the registration statement on Form F-3 (No. 333-276476), the post-effective amendment No. 5 to Form F-1 on Form F-3 (No. 333-269150) and the registration statement amendment No. 1 on Form F-3 (No. 333-280891) of Lanvin Group Holdings Limited and shall be a part thereof from the date on which this Report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

Resultsof the 2025 Annual General Meeting of Shareholders

On December 18, 2025, Lanvin Group Holdings Limited (the “Company”) held its 2025 Annual General Meeting of Shareholders (the “AGM”) virtually, and the proposed resolution set out in the notice of AGM was duly passed.

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.

Date: December 22, 2025