MEDIROM Healthcare Technologies
MRM
6 hedge funds and large institutions have $103K invested in MEDIROM Healthcare Technologies in 2025 Q2 according to their latest regulatory filings, with 4 funds opening new positions, 0 increasing their positions, 2 reducing their positions, and 1 closing their positions.
300% more first-time investments, than exits
New positions opened: 4 | Existing positions closed: 1
100% more funds holding
Funds holding: 3 → 6 (+3)
56% more capital invested
Capital invested by funds: $66K → $103K (+$36.9K)
1.36% less ownership
Funds ownership: 2.28% → 0.92% (-1.4%)
100% less repeat investments, than reductions
Existing positions increased: 0 | Existing positions reduced: 2
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Mariner
Overland Park,
Kansas
|
+$21K |
| 2 |
RhumbLine Advisers
Boston,
Massachusetts
|
+$1.22K |
| 3 |
GI
GAMMA Investing
Foster City,
California
|
+$115 |
| 4 |
TRCT
Tower Research Capital (TRC)
New York
|
+$12 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$71.9K |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$53.3K |
| 3 |
XT
XTX Topco
George Town,
Cayman Islands
|
-$5.14K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
1
UBS Group
Zurich,
Switzerland
| $47.3K | -$71.9K | -65,004 | -66% |
|
|
2
Mariner
Overland Park,
Kansas
| $27K | +$21K | +19,000 | New |
|
|
3
Citadel Advisors
Miami,
Florida
| $26.9K | -$53.3K | -48,211 | -71% |
|
|
4
RhumbLine Advisers
Boston,
Massachusetts
| $1.54K | +$1.22K | +1,100 | New |
|
|
GI
5
GAMMA Investing
Foster City,
California
| $148 | +$115 | +104 | New |
|
|
TRCT
6
Tower Research Capital (TRC)
New York
| $16 | +$12 | +11 | New |
|
|
XT
7
XTX Topco
George Town,
Cayman Islands
| – | -$5.14K | -14,066 | Closed |
|
MRM Hedge Fund Activity: Q2 2025 in Review
6 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in MEDIROM Healthcare Technologies (MRM) for Q2 2025, worth a combined $103K — up 56% from $66K a quarter earlier.
Buyers outnumbered sellers: 4 funds opened new MRM positions and 1 closed out — a net gain of 3 holders — while 0 added to existing stakes and 2 trimmed.
The largest buyer was Mariner, opening a new position worth an estimated $21K. The largest seller was UBS Group, cutting an estimated $71.9K.
- 6 institutional investors held MEDIROM Healthcare Technologies (MRM) as of Q2 2025, up from 3 in Q1 2025.
- Funds reported $103K of MEDIROM Healthcare Technologies stock for Q2 2025, up 56% quarter-over-quarter.
- 4 funds opened new MEDIROM Healthcare Technologies positions in Q2 2025 and 1 closed out, a net change of +3 holders.
- The largest MEDIROM Healthcare Technologies buyer in Q2 2025 was Mariner, an estimated $21K added.
- The largest MEDIROM Healthcare Technologies seller in Q2 2025 was UBS Group, an estimated $71.9K sold.
Based on aggregated 13F filings for Q2 2025.