Medirom Healthcare TechnologMRM
13F holders, Q2 2025 (June 30)6holders +3
4new positions
1sold out
1famous investor
$1.41avg. 13F price*
At the end of Q2 2025, 6 institutions reported holding Medirom Healthcare Technolog (MRM) in their 13F filings, up 3 from Q1 2025. 4 opened new positions and 1 sold out. The largest holders were UBS Group AG ($47K), Mariner, LLC ($27K) and Citadel Advisors ($27K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Medirom Healthcare Technolog
- CUSIP
- 58510H103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $29K |
| Exits | 1 | $5K |
All 13F filers, Q1 2025 → Q2 2025: 20,215 shares bought and 127,281 shares sold, net −107,066 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 6 holders
| UBS Group AG | 0.00% | Reduce -66.1% | 33,280 | $47K |
| Mariner, LLC | 0.00% | New | 19,000 | $27K |
| Citadel Advisors | 0.00% | Reduce -71.5% | 19,217 | $27K |
| Rhumbline Advisers | 0.00% | New | 1,100 | $2K |
| GAMMA Investing LLC | 0.00% | New | 104 | $148 |
| Tower Research Capital LLC (TRC) | 0.00% | New | 11 | $16 |
"% of holder's portfolio" is MRM's weight in each manager's 13F, not the share of Medirom Healthcare Technolog the manager owns.