Open Up Group Inc.
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2025-06-30.
| Foreign institutions | 21.42% |
|---|---|
| Individuals | 36.67% |
| Top 10 holders | 59.70% |
| Total shareholders | 12,569 |
Who owns the company
Share of voting unitsIndividuals & others 36.67%Foreign institutions 21.42%Financial institutions 21.14%Other corporations 18.32%Securities firms 2.4%Foreign individuals 0.05%
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 | 36.67% | 12,218 |
| Foreign institutions | 21.42% | 194 |
| Financial institutions | 21.14% | 11 |
| Other corporations | 18.32% | 78 |
| Securities firms | 2.40% | 25 |
| Foreign individuals | 0.05% | 43 |
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 | 日本マスタートラスト信託銀行株式会社（信託口） | 12,320,500 | 14.10% |
| 2 | 中山 隼雄 | 8,378,000 | 9.60% |
| 3 | 株式会社アミューズキャピタル | 6,240,000 | 7.20% |
| 4 | 株式会社日本カストディ銀行（信託口） | 5,801,605 | 6.70% |
| 5 | 有限会社志 | 5,785,256 | 6.60% |
| 6 | STATE STREET BANK AND TRUST COMPANY 505301（常任代理人 株式会社みずほ銀行決済営業部） | 4,269,800 | 4.90% |
| 7 | 佐藤 大央 | 2,857,878 | 3.30% |
| 8 | 佐藤 淑子 | 2,749,054 | 3.20% |
| 9 | 株式会社アミューズキャピタルインベストメント | 2,380,000 | 2.70% |
| 10 | STATE STREET BANK AND TRUST COMPANY 505025（常任代理人 株式会社みずほ銀行決済営業部） | 1,217,096 | 1.40% |
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.