As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 0.57% |
|---|---|
| Individuals | 49.93% |
| Top 10 holders | 42.21% |
| Total shareholders | 4,650 |
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 | 49.93% | 4,430 |
| Other corporations | 38.98% | 153 |
| Securities firms | 5.11% | 25 |
| Financial institutions | 4.93% | 7 |
| Foreign institutions | 0.57% | 17 |
| Foreign individuals | 0.48% | 18 |
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 | エア・ウォーター防災株式会社 | 734,000 | 10.32% |
| 2 | 株式会社千代田テクノル | 706,000 | 9.93% |
| 3 | 重松宣雄 | 446,000 | 6.28% |
| 4 | シマツ株式会社 | 250,000 | 3.52% |
| 5 | 理研計器株式会社 | 246,000 | 3.46% |
| 6 | 鈴木祐人 | 144,000 | 2.03% |
| 7 | 株式会社重松製作所従業員持株会 | 141,000 | 1.98% |
| 8 | 藤倉航装株式会社 | 133,000 | 1.87% |
| 9 | 株式会社みずほ銀行(常任代理人 株式会社日本カストディ銀行) | 100,000 | 1.41% |
| 10 | 株式会社三菱UFJ銀行 | 100,000 | 1.41% |
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.