As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 6.90% |
|---|---|
| Individuals | 28.39% |
| Top 10 holders | 64.53% |
| Total shareholders | 12,704 |
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 |
|---|---|---|
| Other corporations | 54.39% | 194 |
| Individuals & others | 28.39% | 12,399 |
| Financial institutions | 9.54% | 10 |
| Foreign institutions | 6.90% | 63 |
| Securities firms | 0.78% | 23 |
| Foreign individuals | 0.01% | 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 | 株式会社コロナ興産 | 11,057,000 | 37.81% |
| 2 | 公益財団法人内田エネルギー科学振興財団 | 2,359,000 | 8.07% |
| 3 | 株式会社第四北越銀行 | 1,316,000 | 4.50% |
| 4 | 日本マスタートラスト信託銀行株式会社(信託口) | 1,047,000 | 3.58% |
| 5 | コロナ社員持株会 | 956,000 | 3.27% |
| 6 | JP MORGAN CHASE BANK 385781(常任代理人 株式会社みずほ銀行決済営業部) | 610,000 | 2.09% |
| 7 | STATE STREET BANK AND TRUST COMPANY 505103(常任代理人 株式会社みずほ銀行決済営業部) | 429,000 | 1.47% |
| 8 | STATE STREET BANK AND TRUST COMPANY 505001(常任代理人 株式会社みずほ銀行決済営業部) | 406,000 | 1.39% |
| 9 | 外山産業株式会社 | 365,000 | 1.25% |
| 10 | 内田 力 | 321,000 | 1.10% |
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.