MEDICAL SYSTEM NETWORK Co.,Ltd.
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 11.26% |
|---|---|
| Individuals | 52.49% |
| Top 10 holders | 55.39% |
| Total shareholders | 6,337 |
Who owns the company
Share of voting unitsIndividuals & others 52.49%Financial institutions 17.36%Other corporations 16.3%Foreign institutions 11.26%Securities firms 2.59%Foreign individuals 0.02%
How to read this: each slice is a group of investors. Foreign and financial institutions are professional money; individuals are retail shareholders; other corporations are usually business partners holding strategic stakes. A large institutional slice generally means heavier analyst coverage and more trading volume.
Ownership Trend
Holding %, recent yearsForeign institutionsFinancial institutionsIndividualsOther corporationsSecurities firms
How to read this: each line shows how one investor group's share has moved over recent years. A rising foreign or institutional line can signal growing professional interest; a falling one the opposite. Japanese companies disclose ownership once a year, so these are annual points — read the direction over several years rather than a single step.
Ownership detail
| Investor category | Holding % | Shareholders |
|---|---|---|
| Individuals & others | 52.49% | 6,200 |
| Financial institutions | 17.36% | 16 |
| Other corporations | 16.30% | 32 |
| Foreign institutions | 11.26% | 59 |
| Securities firms | 2.59% | 21 |
| Foreign individuals | 0.02% | 9 |
How to read this: a high foreign or institutional share often means the stock is widely researched and more liquid; a high individual share means retail investors hold most of the company. Percentages are of voting units.
Largest shareholders
| S.No. | Shareholder | Shares | Stake % |
|---|---|---|---|
| 1 | 合同会社エスアンドエス | 2,769,100 | 9.28% |
| 2 | 沖中 恭幸 | 2,506,000 | 8.40% |
| 3 | 日本マスタートラスト信託銀行㈱（信託口） | 2,317,500 | 7.77% |
| 4 | 秋野 治郎 | 2,221,400 | 7.45% |
| 5 | 光通信ＫＫ投資事業有限責任組合 | 2,086,000 | 6.99% |
| 6 | ＭＳＩＰ ＣＬＩＥＮＴ ＳＥＣＵＲＩＴＩＥＳ （常任代理人 モルガン・スタンレーＭＵＦＧ証券㈱） | 1,149,778 | 3.85% |
| 7 | ㈱日本カストディ銀行（信託口） | 929,500 | 3.11% |
| 8 | メディカルシステムネットワーク従業員持株会 | 879,200 | 2.94% |
| 9 | ＩＮＴＥＲＡＣＴＩＶＥ ＢＲＯＫＥＲＳ ＬＬＣ (常任代理人 インタラクティブ・ブローカーズ証券株式会社) | 838,300 | 2.81% |
| 10 | 田尻 稲雄 | 832,000 | 2.79% |
Trust banks such as Master Trust and Custody Bank appear at the top of most Japanese registers: they hold shares on behalf of many underlying funds rather than owning them outright.