SIOS Corporation
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2025-12-31.
| Foreign institutions | 2.76% |
|---|---|
| Individuals | 44.01% |
| Top 10 holders | 56.56% |
| Total shareholders | 6,100 |
Who owns the company
Share of voting unitsOther corporations 47.84%Individuals & others 44.01%Securities firms 2.82%Foreign institutions 2.76%Financial institutions 2.3%Foreign individuals 0.27%
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 | 47.84% | 35 |
| Individuals & others | 44.01% | 5,986 |
| Securities firms | 2.82% | 12 |
| Foreign institutions | 2.76% | 20 |
| Financial institutions | 2.30% | 2 |
| Foreign individuals | 0.27% | 45 |
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 | 株式会社大塚商会 | 1,593,300 | 17.96% |
| 2 | パーソルテンプスタッフ株式会社 | 1,500,000 | 16.91% |
| 3 | 喜多エンタープライズ株式会社 | 920,000 | 10.37% |
| 4 | 喜多伸夫 | 215,900 | 2.43% |
| 5 | 株式会社日本カストディ銀行（信託口） | 202,000 | 2.28% |
| 6 | サイオス従業員持株会 | 150,700 | 1.70% |
| 7 | 大塚厚志 | 145,300 | 1.64% |
| 8 | エフサステクノロジーズ株式会社 | 110,000 | 1.24% |
| 9 | 野村證券株式会社 | 99,542 | 1.12% |
| 10 | 福田一郎 | 80,800 | 0.91% |
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.