AIPHONE CO.,LTD.
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 10.72% |
|---|---|
| Individuals | 43.01% |
| Top 10 holders | 44.06% |
| Total shareholders | 9,530 |
Who owns the company
Share of voting unitsIndividuals & others 43.01%Financial institutions 28.42%Other corporations 16.54%Foreign institutions 10.72%Securities firms 1.29%Foreign individuals 0.01%
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.
Ownership Trend
Holding %, recent yearsForeign institutionsFinancial institutionsIndividualsOther corporationsSecurities firms
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.
Ownership detail
| Investor category | Holding % | Shareholders |
|---|---|---|
| Individuals & others | 43.01% | 9,247 |
| Financial institutions | 28.42% | 20 |
| Other corporations | 16.54% | 148 |
| Foreign institutions | 10.72% | 83 |
| Securities firms | 1.29% | 20 |
| Foreign individuals | 0.01% | 12 |
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.
Largest shareholders
| S.No. | Shareholder | Shares | Stake % |
|---|---|---|---|
| 1 | 市川 周作 | 1,909,000 | 11.66% |
| 2 | 日本マスタートラスト信託銀行株式会社（信託口） | 1,400,000 | 8.55% |
| 3 | アイホン従業員持株会 | 817,000 | 4.99% |
| 4 | 株式会社みずほ銀行（常任代理人 株式会社日本カストディ銀行） | 526,000 | 3.21% |
| 5 | 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） | 507,000 | 3.10% |
| 6 | 日本生命保険相互会社（常任代理人 日本マスタートラスト信託銀行株式会社） | 490,000 | 2.99% |
| 7 | 株式会社日本カストディ銀行（信託口） | 469,000 | 2.86% |
| 8 | アイホン取引先持株会 | 376,000 | 2.29% |
| 9 | 住友生命保険相互会社（常任代理人 株式会社日本カストディ銀行） | 364,000 | 2.22% |
| 10 | 光通信KK投資事業有限責任組合 | 359,000 | 2.19% |
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.