Form 6-K Lanvin Group Holdings For: Jun 30

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

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

OF THE SECURITIES EXCHANGE ACT OF 1934

For the Month of September 2026

Commission File Number: 001-41569

LANVIN GROUP HOLDINGS LIMITED

4F, 168 Jiujiang Road,

Carlowitz & Co, Huangpu District

Shanghai 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.

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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Group Holdings Limited and shall be a part thereof from the date on which this Report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

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EXHIBIT INDEX

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SIGNATURES

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

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Date: September 15, 2026

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