As reported in the annual securities report, 2025-09-30.
| Foreign institutions | 1.31% |
|---|---|
| Individuals | 59.20% |
| Top 10 holders | 64.82% |
| Total shareholders | 2,912 |
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 |
|---|---|---|
| Individuals & others | 59.20% | 2,844 |
| Other corporations | 36.39% | 31 |
| Financial institutions | 1.81% | 3 |
| Foreign institutions | 1.31% | 13 |
| Securities firms | 1.27% | 15 |
| Foreign individuals | 0.02% | 6 |
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 | ㈱サンワ | 3,400,000 | 45.24% |
| 2 | アイデン㈱ | 258,500 | 3.43% |
| 3 | ㈱サカイ | 236,000 | 3.14% |
| 4 | 酒井 俊光 | 230,000 | 3.06% |
| 5 | 榊原 康代 | 159,500 | 2.12% |
| 6 | サカイホールディングス従業員持株会 | 156,500 | 2.08% |
| 7 | 高橋 新 | 145,900 | 1.94% |
| 8 | ㈱あいち銀行 | 114,400 | 1.52% |
| 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) | 96,600 | 1.28% |
| 10 | 田川 正彦 | 76,000 | 1.01% |
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.