System Integrator Corp.
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2026-02-28.
| Foreign institutions | 0.66% |
|---|---|
| Individuals | 95.60% |
| Top 10 holders | 55.40% |
| Total shareholders | 9,739 |
Who owns the company
Share of voting unitsIndividuals & others 95.6%Securities firms 1.44%Other corporations 1.22%Foreign individuals 1.05%Foreign institutions 0.66%Financial institutions 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 | 95.60% | 9,616 |
| Securities firms | 1.44% | 21 |
| Other corporations | 1.22% | 57 |
| Foreign individuals | 1.05% | 24 |
| Foreign institutions | 0.66% | 20 |
| Financial institutions | 0.02% | 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 | 碓井 満 | 2,161,600 | 19.80% |
| 2 | 梅田 弘之 | 1,303,500 | 11.94% |
| 3 | 梅田 和江 | 1,084,000 | 9.93% |
| 4 | 光通信KK投資事業有限責任組合 | 430,200 | 3.94% |
| 5 | システムインテグレータ従業員持株会 | 363,700 | 3.33% |
| 6 | 小鹿 恭裕 | 186,600 | 1.71% |
| 7 | 清水 政彦 | 153,270 | 1.40% |
| 8 | 引屋敷 智 | 151,035 | 1.38% |
| 9 | 鈴木 達也 | 122,200 | 1.12% |
| 10 | 楽天証券株式会社共有口 | 92,400 | 0.85% |
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.