As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 1.84% |
|---|---|
| Individuals | 56.24% |
| Top 10 holders | 34.87% |
| Total shareholders | 4,459 |
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 | 56.24% | 4,346 |
| Other corporations | 23.99% | 65 |
| Financial institutions | 12.41% | 11 |
| Securities firms | 5.51% | 16 |
| Foreign institutions | 1.84% | 13 |
| Foreign individuals | 0.02% | 8 |
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 | 岡田民雄 | 328,000 | 4.87% |
| 2 | 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) | 325,000 | 4.83% |
| 3 | 柏屋商事株式会社 | 275,000 | 4.08% |
| 4 | 上田八木短資株式会社 | 251,000 | 3.73% |
| 5 | 美濃窯業株式会社 | 232,000 | 3.44% |
| 6 | 野村信託銀行株式会社(信託口) | 216,000 | 3.21% |
| 7 | 野間一 | 210,000 | 3.12% |
| 8 | 日本坩堝従業員持株会 | 207,000 | 3.07% |
| 9 | 野村證券株式会社 | 178,000 | 2.64% |
| 10 | 日本精鉱株式会社 | 127,000 | 1.88% |
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.