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Medirom Healthcare Technologies Inc.

MRM
Exchange
Nasdaq
Industry
Services-Personal Services
SEC CIK
0001819704

No open-market purchases or sales by Medirom Healthcare Technologies Inc. insiders were filed in the last 90 days; 8 institutions reported holding it in 13F filings for Q2 2026, worth $176.1K in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding Medirom Healthcare Technologies Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of MRM: Q2 2025 compared with Q3 2025
MeasureQ2 2025Q3 2025Change
Holders64−2
Shares72.7K164.4K+91.7K (+126.1%)
Value$102.8K$348.5K+$245.6K (+238.8%)

New holders (1)

Institutions that held Medirom Healthcare Technologies Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to MRM in Q3 2025
InstitutionSharesValue% of portfolio
Jane Street Group, LLC155,071$328.8K0.00%

Sold out (3)

Institutions that held Medirom Healthcare Technologies Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of MRM in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
UBS Group AG33,280$47.3K
Mariner, LLC19,000$27.0K
Citadel Advisors LLC19,217$26.9K