As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 1.49% |
|---|---|
| Individuals | 50.66% |
| Top 10 holders | 61.79% |
| Total shareholders | 1,800 |
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 | 50.66% | 1,745 |
| Other corporations | 44.79% | 16 |
| Securities firms | 2.00% | 17 |
| Foreign institutions | 1.49% | 8 |
| Financial institutions | 0.97% | 4 |
| Foreign individuals | 0.09% | 10 |
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 | 合同会社ニシオカ | 800,000 | 23.64% |
| 2 | 三菱電機株式会社 | 702,000 | 20.74% |
| 3 | 西菱電機従業員持株会 | 188,400 | 5.56% |
| 4 | 西岡 伸明 | 104,000 | 3.07% |
| 5 | 海山 智 | 84,000 | 2.48% |
| 6 | 西井 希伊 | 49,400 | 1.45% |
| 7 | アトム電子株式会社 | 43,900 | 1.29% |
| 8 | 秦 康明 | 41,000 | 1.21% |
| 9 | 西岡 奈津子 | 40,000 | 1.18% |
| 10 | 吉田 政功 | 39,600 | 1.17% |
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.