As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 0.33% |
|---|---|
| Individuals | 60.76% |
| Top 10 holders | 60.92% |
| Total shareholders | 1,370 |
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 | 60.76% | 1,294 |
| Other corporations | 31.54% | 32 |
| Financial institutions | 7.05% | 7 |
| Securities firms | 0.33% | 16 |
| Foreign institutions | 0.33% | 21 |
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 | 日本継手株式会社 | 3,015,000 | 19.25% |
| 2 | UHPartners2投資事業有限責任組合 | 1,171,000 | 7.48% |
| 3 | 光通信KK投資事業有限責任組合 | 1,025,000 | 6.54% |
| 4 | オーテック従業員持株会 | 931,000 | 5.94% |
| 5 | オーテック共栄会 | 875,000 | 5.59% |
| 6 | アズビル株式会社 | 750,000 | 4.79% |
| 7 | UHPartners3投資事業有限責任組合 | 587,000 | 3.74% |
| 8 | 株式会社FMバルブ製作所 | 426,000 | 2.72% |
| 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) | 405,000 | 2.58% |
| 10 | 株式会社三菱UFJ銀行 | 360,000 | 2.29% |
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.