Medirom Healthcare TechnologMRM
13F holders, Q2 2026 (June 30)8holders +3
3new positions
0sold out
1famous investor
$1.03avg. 13F price*
At the end of Q2 2026, 8 institutions reported holding Medirom Healthcare Technolog (MRM) in their 13F filings, up 3 from Q1 2026. 3 opened new positions and 0 sold out. The largest holders were Citadel Advisors ($58K), HRT Financial LP ($56K) and UBS Group AG ($28K). 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 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $74K |
| Exits | 0 | $0 |
All 13F filers, Q1 2026 → Q2 2026: 116,790 shares bought and 6,023 shares sold, net +110,767 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 8 holders
| Citadel Advisors | 0.00% | New | 56,102 | $58K |
| HRT Financial LP | 0.00% | Add +359.9% | 54,755 | $56K |
| UBS Group AG | 0.00% | Add +2.4% | 27,181 | $28K |
| Virtu Financial LLC | 0.00% | New | 15,785 | $16K |
| Two Sigma Securities, LLC | 0.00% | Reduce -24.4% | 10,565 | $11K |
| GAMMA Investing LLC | 0.00% | Reduce -40.7% | 3,798 | $4K |
| Rhumbline Advisers | 0.00% | Add +56.5% | 3,104 | $3K |
| Arax Advisory Partners | 0.00% | New | 300 | $309 |
"% of holder's portfolio" is MRM's weight in each manager's 13F, not the share of Medirom Healthcare Technolog the manager owns.