As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 1.60% |
|---|---|
| Individuals | 88.03% |
| Top 10 holders | 19.20% |
| Total shareholders | 18,207 |
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 | 88.03% | 17,964 |
| Other corporations | 8.00% | 76 |
| Securities firms | 1.84% | 34 |
| Foreign institutions | 1.60% | 24 |
| Financial institutions | 0.26% | 1 |
| Foreign individuals | 0.26% | 108 |
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 | 昌栄機工株式会社 | 2,311,500 | 4.80% |
| 2 | 宮入バルブ製作所取引先持株会 | 1,567,000 | 3.25% |
| 3 | 清野 正廣 | 1,377,500 | 2.86% |
| 4 | 株式会社CKサンエツ | 1,001,000 | 2.08% |
| 5 | 森下 均 | 716,000 | 1.49% |
| 6 | 宮入バルブ従業員持株会 | 602,500 | 1.25% |
| 7 | 阿部 五美 | 505,000 | 1.05% |
| 8 | 保母 伸子 | 420,000 | 0.87% |
| 9 | 前田 富枝 | 385,000 | 0.80% |
| 10 | 竹内 美和子 | 359,000 | 0.75% |
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.