As reported in the annual securities report, 2026-06-30.
| Foreign institutions | 2.18% |
|---|---|
| Individuals | 75.78% |
| Top 10 holders | 32.83% |
| Total shareholders | 8,073 |
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 | 75.78% | 7,898 |
| Other corporations | 11.73% | 54 |
| Financial institutions | 8.06% | 5 |
| Foreign institutions | 2.18% | 53 |
| Securities firms | 1.67% | 19 |
| Foreign individuals | 0.59% | 44 |
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 | 株式会社南悠商社 | 980,000 | 9.00% |
| 2 | 服部 正太 | 814,000 | 7.48% |
| 3 | 株式会社日本カストディ銀行(信託口) | 434,000 | 3.99% |
| 4 | 株式会社りそな銀行 | 400,000 | 3.67% |
| 5 | 構研所員持株会 | 343,000 | 3.15% |
| 6 | 有限会社構研コンサルタント | 200,000 | 1.84% |
| 7 | 外池 榮一郎 | 126,000 | 1.16% |
| 8 | 木村 香代子 | 102,000 | 0.94% |
| 9 | 阿部 誠允 | 100,000 | 0.92% |
| 10 | 大堀 三樹 | 74,000 | 0.68% |
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.