IR Japan Holdings,Ltd.
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 1.73% |
|---|---|
| Individuals | 87.01% |
| Top 10 holders | 66.46% |
| Total shareholders | 7,084 |
Who owns the company
Share of voting unitsIndividuals & others 87.01%Financial institutions 8.02%Other corporations 2.06%Foreign institutions 1.73%Securities firms 1.06%Foreign individuals 0.12%
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 | 87.01% | 6,918 |
| Financial institutions | 8.02% | 8 |
| Other corporations | 2.06% | 63 |
| Foreign institutions | 1.73% | 47 |
| Securities firms | 1.06% | 20 |
| Foreign individuals | 0.12% | 28 |
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 | 寺下 史郎 | 9,055,100 | 50.97% |
| 2 | 日本マスタートラスト信託銀行株式会社（信託口） | 1,081,600 | 6.08% |
| 3 | 内藤 征吾 | 521,900 | 2.93% |
| 4 | 古川 良太 | 260,000 | 1.46% |
| 5 | 仁井田 博義 | 226,600 | 1.27% |
| 6 | 日本証券金融株式会社 | 202,400 | 1.13% |
| 7 | 筧 悦生 | 153,000 | 0.86% |
| 8 | アイ・アールジャパン従業員持株会 | 111,720 | 0.62% |
| 9 | 山口 英司 | 111,100 | 0.62% |
| 10 | 株式会社日本カストディ銀行（信託口） | 92,900 | 0.52% |
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.