ADEKA CORPORATION
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 26.79% |
|---|---|
| Individuals | 17.15% |
| Top 10 holders | 40.36% |
| Total shareholders | 11,552 |
Who owns the company
Share of voting unitsFinancial institutions 36.52%Foreign institutions 26.79%Other corporations 17.63%Individuals & others 17.15%Securities firms 1.88%Foreign individuals 0.02%
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 |
|---|---|---|
| Financial institutions | 36.52% | 50 |
| Foreign institutions | 26.79% | 265 |
| Other corporations | 17.63% | 285 |
| Individuals & others | 17.15% | 10,868 |
| Securities firms | 1.88% | 37 |
| Foreign individuals | 0.02% | 46 |
| Government | 0.00% | 1 |
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 | 日本マスタートラスト信託銀行株式会社(信託口) | 11,224,000 | 11.41% |
| 2 | 株式会社日本カストディ銀行(信託口) | 6,958,000 | 7.07% |
| 3 | 朝日生命保険相互会社(常任代理人)株式会社日本カストディ銀行 | 4,053,000 | 4.12% |
| 4 | みずほ信託銀行株式会社退職給付信託みずほ銀行口再信託受託者株式会社日本カストディ銀行 | 3,770,000 | 3.83% |
| 5 | ADEKA取引先持株会 | 3,136,000 | 3.19% |
| 6 | 全国共済農業協同組合連合会(常任代理人)日本マスタートラスト信託銀行株式会社 | 2,334,000 | 2.37% |
| 7 | STATE STREET BANK AND TRUST COMPANY 505001 (常任代理人)株式会社みずほ銀行決済営業部 | 2,296,000 | 2.33% |
| 8 | 日本ゼオン株式会社 | 2,188,000 | 2.22% |
| 9 | THE BANK OF NEW YORK MELLON 140042(常任代理人)株式会社みずほ銀行決済営業部 | 1,888,000 | 1.92% |
| 10 | 昭和興産株式会社 | 1,870,000 | 1.90% |
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.