As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 14.99% |
|---|---|
| Individuals | 57.03% |
| Top 10 holders | 77.60% |
| Total shareholders | 1,199 |
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.
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.
| Investor category | Holding % | Shareholders |
|---|---|---|
| Individuals & others | 57.03% | 1,124 |
| Other corporations | 25.39% | 23 |
| Foreign institutions | 14.99% | 27 |
| Financial institutions | 1.78% | 3 |
| Securities firms | 0.79% | 15 |
| Foreign individuals | 0.02% | 7 |
| Government | 0.00% | — |
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.
| S.No. | Shareholder | Shares | Stake % |
|---|---|---|---|
| 1 | 清水建設株式会社 | 2,822,400 | 27.26% |
| 2 | 板谷 敏正 | 1,112,134 | 10.74% |
| 3 | UHPartners2投資事業有限責任組合 | 765,200 | 7.39% |
| 4 | 光通信KK投資事業有限責任組合 | 762,000 | 7.36% |
| 5 | 高橋 秀樹 | 759,000 | 7.33% |
| 6 | LICHFIELD LP(常任代理人 三菱UFJ銀行) | 585,400 | 5.65% |
| 7 | TAKUMI CAPITAL MANAGEMENT MASTER FUND LP(常任代理人 香港上海銀行東京支店) | 459,400 | 4.43% |
| 8 | 寺田 英司 | 301,500 | 2.91% |
| 9 | 武野 貞久 | 247,280 | 2.38% |
| 10 | THE BANK OF NEW YORK 133595(常任代理人 みずほ銀行) | 223,200 | 2.15% |
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.