SIGMA KOKI CO.,LTD.
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2026-05-31.
| Foreign institutions | 1.95% |
|---|---|
| Individuals | 62.81% |
| Top 10 holders | 43.08% |
| Total shareholders | 5,984 |
Who owns the company
Share of voting unitsIndividuals & others 62.81%Other corporations 22.4%Financial institutions 9.46%Securities firms 3.31%Foreign institutions 1.95%Foreign individuals 0.09%
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 | 62.81% | 5,813 |
| Other corporations | 22.40% | 76 |
| Financial institutions | 9.46% | 10 |
| Securities firms | 3.31% | 26 |
| Foreign institutions | 1.95% | 39 |
| Foreign individuals | 0.09% | 20 |
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 | 浜松ホトニクス株式会社 | 1,000,000 | 14.11% |
| 2 | シグマ光機取引先持株会 | 507,000 | 7.16% |
| 3 | 光通信KK投資事業有限責任組合 | 408,000 | 5.76% |
| 4 | 株式会社ツシマ | 228,000 | 3.23% |
| 5 | シグマ光機従業員持株会 | 212,000 | 3.00% |
| 6 | 富国生命保険相互会社(常任代理人 株式会社日本カストディ銀行） | 200,000 | 2.82% |
| 7 | 株式会社サンライズクリエート | 148,000 | 2.09% |
| 8 | 株式会社埼玉りそな銀行 | 128,000 | 1.80% |
| 9 | 杉山 大樹 | 110,000 | 1.56% |
| 10 | 株式会社三井住友銀行 | 110,000 | 1.55% |
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.