As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 2.68% |
|---|---|
| Individuals | 48.77% |
| Top 10 holders | 51.00% |
| Total shareholders | 4,805 |
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 | 48.77% | 4,580 |
| Financial institutions | 30.35% | 18 |
| Other corporations | 14.93% | 107 |
| Securities firms | 3.27% | 32 |
| Foreign institutions | 2.68% | 64 |
| Government | 0.00% | 1 |
| Foreign individuals | 0.00% | 3 |
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 | 株式会社日本カストディ銀行(三井住友信託銀行再信託分・三井化学株式会社退職給付信託口) | 578,000 | 8.70% |
| 2 | 群栄化学取引先持株会 | 550,000 | 8.30% |
| 3 | 日本マスタートラスト信託銀行株式会社(信託口) | 528,000 | 8.00% |
| 4 | 信越化学工業株式会社 | 329,000 | 5.00% |
| 5 | 株式会社群馬銀行(常任代理人 株式会社日本カストディ銀行) | 304,000 | 4.60% |
| 6 | 株式会社日本カストディ銀行(信託口) | 255,000 | 3.90% |
| 7 | 株式会社横浜銀行(常任代理人 株式会社日本カストディ銀行) | 245,000 | 3.70% |
| 8 | 三菱UFJ信託銀行株式会社(常任代理人 日本マスタートラスト信託銀行株式会社) | 232,000 | 3.50% |
| 9 | 日本証券金融株式会社 | 187,000 | 2.80% |
| 10 | 東京応化工業株式会社 | 168,000 | 2.50% |
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.