As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 0.34% |
|---|---|
| Individuals | 47.97% |
| Top 10 holders | 73.51% |
| Total shareholders | 5,451 |
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.
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.
| Investor category | Holding % | Shareholders |
|---|---|---|
| Other corporations | 49.14% | 48 |
| Individuals & others | 47.97% | 5,356 |
| Financial institutions | 1.06% | 3 |
| Securities firms | 1.00% | 18 |
| Foreign individuals | 0.47% | 12 |
| Foreign institutions | 0.34% | 14 |
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.
| S.No. | Shareholder | Shares | Stake % |
|---|---|---|---|
| 1 | 株式会社オーイズミホールディングス | 10,630,000 | 47.25% |
| 2 | 大泉秀治 | 3,120,000 | 13.87% |
| 3 | 大泉充輝 | 1,011,000 | 4.50% |
| 4 | 大泉賢治 | 604,000 | 2.69% |
| 5 | オーイズミ取引先持株会 | 244,000 | 1.09% |
| 6 | 石川雄一 | 233,000 | 1.04% |
| 7 | 株式会社商工組合中央金庫 | 210,000 | 0.93% |
| 8 | 波佐間絵美 | 187,000 | 0.83% |
| 9 | オーイズミ従業員持株会 | 171,000 | 0.76% |
| 10 | 上田八木短資株式会社 | 123,000 | 0.55% |
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.