As reported in the annual securities report, 2025-12-31.
| Foreign institutions | 11.77% |
|---|---|
| Individuals | 43.81% |
| Top 10 holders | 42.76% |
| Total shareholders | 30,479 |
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 | 43.81% | 30,011 |
| Other corporations | 28.34% | 192 |
| Financial institutions | 13.19% | 21 |
| Foreign institutions | 11.77% | 155 |
| Securities firms | 2.84% | 18 |
| Foreign individuals | 0.05% | 82 |
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 | 大塚製薬株式会社 | 2,200,000 | 10.06% |
| 2 | 株式会社大塚製薬工場 | 1,948,000 | 8.91% |
| 3 | 日本マスタートラスト信託銀行株式会社(信託口) | 1,898,000 | 8.69% |
| 4 | アース製薬社員持株会 | 1,062,000 | 4.86% |
| 5 | 大鵬薬品工業株式会社 | 600,000 | 2.74% |
| 6 | 株式会社日本カストディ銀行(信託口) | 450,000 | 2.06% |
| 7 | 大塚化学株式会社 | 400,000 | 1.83% |
| 8 | 株式会社中国銀行 | 340,000 | 1.55% |
| 9 | 大塚エステート株式会社 | 239,000 | 1.09% |
| 10 | JP MORGAN CHASE BANK 385781(常任代理人みずほ銀行決済営業部) | 213,000 | 0.97% |
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.