Medirom Healthcare Technologies Inc.
MRM- Exchange
- Nasdaq
- Industry
- Services-Personal Services
- SEC CIK
- 0001819704
No open-market purchases or sales by Medirom Healthcare Technologies Inc. insiders were filed in the last 90 days; 8 institutions reported holding it in 13F filings for Q2 2026, worth $176.1K in total; no superinvestor holds it.
Holders of 5% or more of MRM
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Medirom Healthcare Technologies Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Eguchi Kouji | 13D/A | 25.77%2.08M shares | – | Sep 2, 20251 filing | Sep 2, 2025 | SEC |
| Kufu Co Holdings Inc. | 13D/A | 9.44%833.3K shares | +1.71 ppfrom 7.73% | May 30, 20252 filings | Mar 30, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
3 Schedule 13D and 13G filings on Medirom Healthcare Technologies Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 30, 202611:38 AM ET | Kufu Co Holdings Inc. | 13D/A | 9.44%833.3K shares | +1.71 ppfrom 7.73% | Dec 31, 2025 | SEC |
| Sep 2, 20254:30 PM ET | Eguchi Koujiand 1 other | 13D/A | 25.77%2.08M shares | – | Dec 11, 2024 | SEC |
| May 30, 20256:17 AM ET | Kufu Co Holdings Inc. | 13D/A | 7.73%662.3K shares | – | Dec 11, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Medirom Healthcare Technologies Inc. shares.
No Form 144 notices for Medirom Healthcare Technologies Inc. are on file.