Japan Medical Dynamic Marketing,INC.
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 10.38% |
|---|---|
| Individuals | 41.75% |
| Top 10 holders | 60.17% |
| Total shareholders | 6,180 |
Who owns the company
Share of voting unitsIndividuals & others 41.75%Other corporations 33.29%Financial institutions 10.95%Foreign institutions 10.38%Securities firms 3.34%Foreign individuals 0.29%
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 | 41.75% | 5,954 |
| Other corporations | 33.29% | 55 |
| Financial institutions | 10.95% | 8 |
| Foreign institutions | 10.38% | 79 |
| Securities firms | 3.34% | 22 |
| Foreign individuals | 0.29% | 62 |
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 | 三井化学株式会社 | 7,942,000 | 30.01% |
| 2 | 日本マスタートラスト信託銀行株式会社（信託口） | 2,070,000 | 7.82% |
| 3 | 渡邉 崇史 | 1,168,000 | 4.41% |
| 4 | 渡辺 康夫 | 1,012,000 | 3.82% |
| 5 | 島崎 一宏 | 893,000 | 3.37% |
| 6 | MSIP CLIENT SECURITIES（常任代理人 モルガン・スタンレーMUFG証券株式会社） | 806,000 | 3.04% |
| 7 | 株式会社日本カストディ銀行（信託口） | 741,000 | 2.80% |
| 8 | 上田八木短資株式会社 | 658,000 | 2.48% |
| 9 | 日下部 博 | 390,000 | 1.47% |
| 10 | 株式会社ＳＢＩ証券 | 252,000 | 0.95% |
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.