MK SEIKO CO.,LTD.
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2026-03-20.
| Foreign institutions | 2.13% |
|---|---|
| Individuals | 65.32% |
| Top 10 holders | 44.35% |
| Total shareholders | 3,383 |
Who owns the company
Share of voting unitsIndividuals & others 65.32%Other corporations 20.07%Financial institutions 11.1%Foreign institutions 2.13%Securities firms 1.33%Foreign individuals 0.05%
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 | 65.32% | 3,217 |
| Other corporations | 20.07% | 117 |
| Financial institutions | 11.10% | 7 |
| Foreign institutions | 2.13% | 23 |
| Securities firms | 1.33% | 15 |
| Foreign individuals | 0.05% | 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 | 東京中小企業投資育成株式会社 | 1,170,000 | 8.40% |
| 2 | 丸山 はる代 | 825,000 | 5.93% |
| 3 | 株式会社八十二長野銀行（常任代理人 日本マスタートラスト信託銀行株式会社） | 688,000 | 4.94% |
| 4 | 株式会社みずほ銀行（常任代理人 株式会社日本カストディ銀行） | 688,000 | 4.94% |
| 5 | エムケー精工従業員持株会 | 620,000 | 4.45% |
| 6 | 丸山 将一 | 552,000 | 3.96% |
| 7 | 丸山 誠二 | 488,000 | 3.50% |
| 8 | 丸山 繁夫 | 461,000 | 3.31% |
| 9 | 早川 和弘 | 406,000 | 2.92% |
| 10 | 昭和商事株式会社 | 279,000 | 2.00% |
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.