As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 1.36% |
|---|---|
| Individuals | 86.85% |
| Top 10 holders | 44.81% |
| Total shareholders | 688 |
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 | 86.85% | 629 |
| Other corporations | 7.33% | 33 |
| Financial institutions | 3.76% | 3 |
| Foreign institutions | 1.36% | 8 |
| Securities firms | 0.70% | 15 |
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 | U H P a r t n e r s 2 投資事業有限責任組合 | 156,400 | 9.88% |
| 2 | 特殊電極従業員持株会 | 122,200 | 7.72% |
| 3 | 光通信K K 投資事業有限責任組合 | 118,100 | 7.46% |
| 4 | U H P a r t n e r s 3 投資事業有限責任組合 | 110,100 | 6.95% |
| 5 | 特殊電極取引先持株会 | 37,600 | 2.37% |
| 6 | 大野 昌克 | 34,000 | 2.14% |
| 7 | 坂西 啓至 | 34,000 | 2.14% |
| 8 | 宮田 純子 | 34,000 | 2.14% |
| 9 | 福田 博 | 33,600 | 2.12% |
| 10 | 坂本 裕代 | 30,000 | 1.89% |
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.