MRM Medirom Healthcare Technologies Inc.: institutional ownership and insider trading
8 funds reported holding $172K of Medirom Healthcare Technologies Inc. in their latest 13F filings; in Q2 2026 funds net bought $114K, with 3 new positions and 0 funds selling out; over the last 12 months insiders bought $0 and sold $0 on the open market.
Famous investors holding MRM
- Ken Griffin (Citadel Advisors): $57.8K, 0.0% of the portfolio
Largest institutional holders of MRM
- CITADEL ADVISORS LLC — $57.8K
- HRT FINANCIAL LP — $56.0K
- UBS Group AG (UBS) — $28.0K
- Virtu Financial LLC — $16.0K
- TWO SIGMA SECURITIES, LLC — $10.9K
- RHUMBLINE ADVISERS — $3.20K
- Arax Advisory Partners — $309
- GAMMA Investing LLC — $11
5%+ owners
- Kouji Eguchi: 25.1% (Schedule 13D/A, filed Aug 28, 2026)
Who owns the most MRM stock?
The largest institutional holders of Medirom Healthcare Technologies Inc. in the latest 13F filings are CITADEL ADVISORS LLC ($57.8K), HRT FINANCIAL LP ($56.0K), UBS Group AG (UBS) ($28.0K).
Are insiders buying or selling MRM?
No open-market insider buys or sells of Medirom Healthcare Technologies Inc. were reported in the last 12 months.
Which famous investors own MRM?
Ken Griffin.