As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 7.05% |
|---|---|
| Individuals | 46.50% |
| Top 10 holders | 43.08% |
| Total shareholders | 15,562 |
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 | 46.50% | 15,211 |
| Other corporations | 26.51% | 201 |
| Financial institutions | 19.04% | 18 |
| Foreign institutions | 7.05% | 62 |
| Securities firms | 0.86% | 18 |
| Foreign individuals | 0.04% | 52 |
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 | 公益財団法人西川記念財団 | 3,060,000 | 8.44% |
| 2 | 株式会社ハイレックスコーポレーション | 2,482,000 | 6.85% |
| 3 | 西川ゴム工業取引先持株会 | 2,119,000 | 5.85% |
| 4 | 西 川 正 洋 | 2,006,000 | 5.54% |
| 5 | 株式会社広島銀行 | 1,853,000 | 5.11% |
| 6 | 株式会社山口銀行 | 1,088,000 | 3.00% |
| 7 | 株式会社日本カストディ銀行(金銭信託課税口) | 800,000 | 2.21% |
| 8 | 西川ゴム工業社員持株会 | 791,000 | 2.18% |
| 9 | BNYM SA/NV FOR BNYM FOR BNY GCM CLIENT ACCOUNTS M LSCB RD (常任代理人 株式会社三菱UFJ銀行) | 720,000 | 1.99% |
| 10 | 西 川 泰 央 | 691,000 | 1.91% |
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.