As reported in the annual securities report, 2025-08-31.
| Foreign institutions | 2.95% |
|---|---|
| Individuals | 91.84% |
| Top 10 holders | 36.76% |
| Total shareholders | 14,206 |
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 | 91.84% | 14,014 |
| Foreign institutions | 2.95% | 28 |
| Other corporations | 2.40% | 107 |
| Securities firms | 1.73% | 16 |
| Financial institutions | 1.01% | 3 |
| Foreign individuals | 0.06% | 38 |
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 | 浅 山 忠 彦 | 2,087,570 | 14.81% |
| 2 | 淺 山 雄 彦 | 1,181,930 | 8.39% |
| 3 | アムスライフサイエンス取引先持株会 | 424,700 | 3.01% |
| 4 | 木 下 圭一郎 | 403,400 | 2.86% |
| 5 | 浅 山 麻衣子 | 310,000 | 2.20% |
| 6 | 浅 山 麻里奈 | 300,000 | 2.13% |
| 7 | 藤 田 圭 亮 | 129,167 | 0.92% |
| 8 | 株式会社静岡銀行(常任代理人日本マスタートラスト信託銀行株式会社) | 124,900 | 0.89% |
| 9 | STATE STREET BANK AND TRUST COMPANY 510643(常任代理人株式会社みずほ銀行決済営業部) | 123,100 | 0.87% |
| 10 | 福 地 千 佳 | 95,420 | 0.68% |
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.