PORTERS CORPORATION
TSE Growth
Shareholding pattern
As reported in the annual securities report, 2025-12-31.
| Foreign institutions | 5.35% |
|---|---|
| Individuals | 39.30% |
| Top 10 holders | 85.34% |
| Total shareholders | 298 |
Who owns the company
Share of voting unitsOther corporations 48.46%Individuals & others 39.3%Foreign institutions 5.35%Financial institutions 4.18%Securities firms 2.54%Foreign individuals 0.16%
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 | 48.46% | 10 |
| Individuals & others | 39.30% | 258 |
| Foreign institutions | 5.35% | 14 |
| Financial institutions | 4.18% | 2 |
| Securities firms | 2.54% | 10 |
| Foreign individuals | 0.16% | 4 |
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 | KAキャピタル株式会社 | 750,000 | 45.96% |
| 2 | 西森 康二 | 164,000 | 10.06% |
| 3 | 御子柴 智美 | 164,000 | 10.06% |
| 4 | 光通信KK投資事業有限責任組合 | 103,000 | 6.31% |
| 5 | 株式会社日本カストディ銀行（信託口） | 68,000 | 4.16% |
| 6 | MSIP CLIENT SECURITIES（常任代理人 モルガン・スタンレーMUFG証券株式会社） | 49,000 | 3.05% |
| 7 | INTERACTIVE BROKERS LLC（常任代理人 インタラクティブ・ブローカーズ証券株式会社） | 25,000 | 1.56% |
| 8 | ポーターズ社員持株会 | 25,000 | 1.55% |
| 9 | 天野 竜人 | 22,000 | 1.35% |
| 10 | JPモルガン証券株式会社 | 21,000 | 1.28% |
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.