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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

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Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16
Under the Securities Exchange Act of 1934

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For the month of October 2025

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MEDIROM HEALTHCARE TECHNOLOGIES INC.

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Commission File Number 001-39809

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(Translation of registrant’s name into English)

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2-3-1 Daiba, Minato-ku
Tokyo 135-0091, Japan
(Address of principal executive offices)

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

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Form 20-F ☒ Form 40-F ☐

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EXPLANATORY NOTE

This current report on Form 6-K, including the exhibits hereto, is incorporated by reference into the Registration Statement on Form F-3 (File No. 333-290161) and shall be a part of such registration statement from the date on which this current report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.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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Exhibit No.

    

Description

99.1

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Interim report of MEDIROM Healthcare Technologies Inc. for the six months ended June 30, 2025

101.INS

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Inline XBRL Instance Document-this instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document

101.SCH

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Inline XBRL Taxonomy Extension Schema Document

101.CAL

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Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF

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Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB

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Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE

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Inline XBRL Taxonomy Extension Presentation Linkbase Document

104

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

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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.

Date: October 21, 2025

By:

/s/ Fumitoshi Fujiwara

 

Name:

Fumitoshi Fujiwara

 

Title:

Chief Financial Officer

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