Medirom Healthcare Technologies Inc. (MRM) shareholders
Close on Nov 13, 2026Market cap $2.19MP/E 1.5Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Kouji Eguchi | 2,031,558 | 25.11% | 13D (active) amendment | Aug 27, 2026 |
| Triple One Investment Partnership Joint filing with Kabushiki Kaisha CARPE DIEM (7.10%), Takao Shimura (7.10%) | 380,019 | 7.10% | 13G (passive) | Oct 25, 2024 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of MRM | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Citadel Advisors LLC | 56,102 | 0.71% | $57.79K | New | 0.00% |
| Hrt Financial LP | 54,755 | 0.69% | $56.00K | +42,850 | 0.00% |
| UBS Group AG | 27,181 | 0.34% | $28.00K | +633 | 0.00% |
| Virtu Financial LLC | 15,785 | 0.20% | $16.00K | New | 0.00% |
| Two Sigma Securities, LLC | 10,565 | 0.13% | $10.88K | −3,412 | 0.00% |
| GAMMA Investing LLC | 3,798 | 0.05% | $3.91K | −2,611 | 0.00% |
| Rhumbline Advisers | 3,104 | 0.04% | $3.20K | +1,120 | 0.00% |
| SRS Capital Advisors, Inc. | 300 | 0.00% | $309 | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 8 | 0M | 2.2% | 3 / 3 | 2 / 0 | 0M | 0M |
| Q1 2026 | 5 | 0M | 0.8% | 2 / 1 | 2 / 0 | 0M | 0M |
| Q4 2025 | 3 | 0M | 0.2% | 1 / 2 | 0 / 2 | 0M | 0M |
| Q3 2025 | 4 | 0M | 2.1% | 1 / 3 | 0 / 3 | 0M | 0M |
| Q2 2025 | 6 | 0M | 0.9% | 4 / 0 | 2 / 1 | 0M | 0M |
| Q1 2025 | 3 | 0M | 2.3% | 1 / 2 | 0 / 3 | 0M | 0M |
| Q4 2024 | 5 | 0M | 1.5% | 4 / 1 | 0 / 2 | 0M | 0M |
| Q3 2024 | 3 | 0M | 0.4% | 1 / 1 | 0 / 0 | 0M | 0M |
| Q2 2024 | 2 | 0M | 0.0% | 1 / 0 | 1 / 0 | 0M | 0M |
| Q1 2024 | 1 | 0M | 0.0% | 0 / 1 | 0 / 0 | 0M | 0M |
| Q4 2023 | 1 | 0M | 0.0% | 0 / 0 | 1 / 1 | 0M | 0M |
| Q3 2023 | 2 | 0M | 0.0% | 2 / 0 | 0 / 0 | 0M | 0M |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Kouji Eguchi | Chief Executive Officer, Director, 10% owner | 1,820,058 | 23.03% | Aug 28, 2026 |
| Fumitoshi Fujiwara | Chief Financial Officer, Director | 40,000 | 0.51% | Mar 18, 2026 |
| Yoshio Uekusa | Director | 28,837 | 0.36% | Jun 9, 2026 |
| Akira Nojima | Director | 1,200 | 0.02% | Mar 18, 2026 |
| Tomoya Ogawa | Director | 28,500 | 0.36% | Mar 18, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Kouji Eguchi Chief Executive Officer, Director, 10% owner | Aug 27, 2026 | Other | −79,945 | – | – | 1,797,515 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Medirom Healthcare Technologies's stock actually held short. No settlement fails above the SEC's reporting threshold in the last 90 days.
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