OTSUKA CORPORATION
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2025-12-31.
| Foreign institutions | 26.40% |
|---|---|
| Individuals | 13.08% |
| Top 10 holders | 62.22% |
| Total shareholders | 8,981 |
Who owns the company
Share of voting unitsOther corporations 35.33%Foreign institutions 26.4%Financial institutions 20.13%Individuals & others 13.08%Securities firms 5.06%
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 |
|---|---|---|
| Other corporations | 35.33% | 109 |
| Foreign institutions | 26.40% | 693 |
| Financial institutions | 20.13% | 71 |
| Individuals & others | 13.08% | 8,066 |
| Securities firms | 5.06% | 23 |
| Foreign individuals | 0.00% | 19 |
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 | 大塚装備株式会社 | 127,205,000 | 33.54% |
| 2 | 日本マスタートラスト信託銀行株式会社（信託口） | 40,811,000 | 10.76% |
| 3 | 株式会社日本カストディ銀行（信託口） | 22,437,000 | 5.91% |
| 4 | 大塚 裕司 | 9,363,000 | 2.46% |
| 5 | 大塚商会社員持株会 | 8,490,000 | 2.23% |
| 6 | ＪＰモルガン証券株式会社 | 7,057,000 | 1.86% |
| 7 | 大塚 惠子 | 6,963,000 | 1.83% |
| 8 | ＳＭＢＣ日興証券株式会社 | 5,741,000 | 1.51% |
| 9 | ステート ストリート バンク アンド トラスト カンパニー ５０５００１（常任代理人 株式会社みずほ銀行決済営業部） | 4,200,000 | 1.10% |
| 10 | ビ－エヌワイエム アズ エ－ジ－テイ クライアンツ ノン トリ－テイ－ ジヤスデツク（常任代理人 株式会社三菱ＵＦＪ銀行） | 3,872,000 | 1.02% |
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.