KOATSU GAS KOGYO CO.,LTD.
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 8.80% |
|---|---|
| Individuals | 33.47% |
| Top 10 holders | 60.33% |
| Total shareholders | 17,957 |
Who owns the company
Share of voting unitsIndividuals & others 33.47%Other corporations 30.75%Financial institutions 26.5%Foreign institutions 8.8%Securities firms 0.46%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 |
|---|---|---|
| Individuals & others | 33.47% | 17,585 |
| Other corporations | 30.75% | 207 |
| Financial institutions | 26.50% | 18 |
| Foreign institutions | 8.80% | 76 |
| Securities firms | 0.46% | 28 |
| Foreign individuals | 0.02% | 43 |
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 | こうあつ共栄会 | 7,462,000 | 13.51% |
| 2 | デンカ㈱ | 5,457,000 | 9.88% |
| 3 | 共栄火災海上保険㈱ | 4,003,000 | 7.25% |
| 4 | 日本マスタートラスト信託銀行㈱（信託口） | 3,175,000 | 5.75% |
| 5 | 日本酸素ホールディングス㈱ | 3,142,000 | 5.69% |
| 6 | みずほ信託銀行㈱退職給付信託みずほ銀行口再信託受託者㈱日本カストディ銀行 | 2,717,000 | 4.92% |
| 7 | ㈱三菱ＵＦＪ銀行 | 2,471,000 | 4.47% |
| 8 | 東洋電化工業㈱ | 2,430,000 | 4.40% |
| 9 | 高圧ガス社員持株会 | 1,538,000 | 2.78% |
| 10 | STATE STREET BANK AND TRUST COMPANY 505103 （常任代理人 株式会社みずほ銀行決済営業部） | 929,000 | 1.68% |
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.