Who Owns MEDIROM Healthcare Technologies Inc. (MRM)?Hedge Fund & Institutional Holders
Institutional Holders
4
as of Q4 2025
Total Institutional Value
$20.4M
% of Float Held
—
QoQ Change in Holders
+1 / -2
Price History
MRM — Biggest New Institutional Buyers This Quarter
| Fund | Action | Shares Added | Value Added |
|---|---|---|---|
| UBS Group AG | New Position | +4K | +$6K |
| RHUMBLINE ADVISERS | Increased | +3K | +$-2.8M |
| GAMMA Investing LLC | Increased | +6K | +$-9.8M |
MRM — Institutions Reducing or Closing Positions
| Fund | Action | Shares Sold | Value Sold |
|---|---|---|---|
| JANE STREET GROUP, LLC | Closed Position | -155K | -$328.8M |
| Tower Research Capital LLC (TRC) | Closed Position | -3K | -$7.2M |
Top Institutional Holders(Q4 2025)
| # | Fund | Shares | Value | % of Portfolio | Type |
|---|---|---|---|---|---|
| 1 | GAMMA Investing LLC | 10,555 | $20K | 0.00% | Share |
| 2 | UBS Group AG | 2,258 | $4K | 0.00% | Share |
| 3 | UBS Group AG | 1,358 | $2K | 0.00% | Share |
| 4 | RHUMBLINE ADVISERS | 4,253 | $0 | 0.00% | Share |
MRM Institutional Ownership History
| Quarter | Holders | Total Value | Change |
|---|---|---|---|
| Q4 2025 | 3 | $26K | -1 |
| Q3 2025 | 4 | $348.5M | -3 |
| Q2 2025 | 7 | $102.8M | +4 |
| Q1 2025 | 3 | $66.0M | -3 |
| Q4 2024 | 6 | $5.2B | +3 |
| Q3 2024 | 3 | $54.2B | +0 |
| Q2 2024 | 3 | $216.0M | +1 |
| Q1 2024 | 2 | $2.5B | — |
Similar Stocks by Institutional Ownership
As of Q4 2025, 4 institutional investors hold MRM (MEDIROM Healthcare Technologies Inc.). The largest holder is GAMMA Investing LLC with $20K in shares. This quarter, 1 institutions opened new positions and 2 closed their positions.
Frequently Asked Questions
How many hedge funds own MRM?
As of Q4 2025, 4 institutional investors report holding MRM (MEDIROM Healthcare Technologies Inc.) in their 13F filings.
Who is the largest institutional holder of MRM?
The largest institutional holder of MRM is GAMMA Investing LLC with $20K in shares.
Is institutional ownership of MRM increasing or decreasing?
This quarter, 1 institutions opened new positions in MRM and 2 closed their positions.