As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 4.80% |
|---|---|
| Individuals | 46.12% |
| Top 10 holders | 50.84% |
| Total shareholders | 2,227 |
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 | 46.12% | 2,118 |
| Other corporations | 29.72% | 54 |
| Financial institutions | 17.99% | 8 |
| Foreign institutions | 4.80% | 27 |
| Securities firms | 0.89% | 15 |
| Government | 0.45% | 1 |
| Foreign individuals | 0.02% | 4 |
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 | 日本電設工業株式会社 | 2,395,000 | 14.93% |
| 2 | 大同信号取引先持株会 | 888,000 | 5.54% |
| 3 | 朝日生命保険相互会社 | 715,000 | 4.46% |
| 4 | 株式会社みずほ銀行 | 683,000 | 4.26% |
| 5 | 日本リーテック株式会社 | 655,000 | 4.09% |
| 6 | 有限会社光パワー | 598,000 | 3.73% |
| 7 | 大同信号従業員持株会 | 594,000 | 3.71% |
| 8 | 株式会社三井住友銀行 | 588,000 | 3.67% |
| 9 | 重田 康光 | 531,000 | 3.31% |
| 10 | 大同信号共済会 | 503,000 | 3.14% |
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.