ARTNATURE INC.
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 8.63% |
|---|---|
| Individuals | 64.83% |
| Top 10 holders | 68.25% |
| Total shareholders | 4,384 |
Who owns the company
Share of voting unitsIndividuals & others 64.83%Financial institutions 14.36%Other corporations 11.2%Foreign institutions 8.63%Securities firms 0.77%Foreign individuals 0.21%
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 | 64.83% | 4,250 |
| Financial institutions | 14.36% | 15 |
| Other corporations | 11.20% | 33 |
| Foreign institutions | 8.63% | 53 |
| Securities firms | 0.77% | 21 |
| Foreign individuals | 0.21% | 12 |
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 | 五十嵐 祥剛 | 6,177,940 | 18.61% |
| 2 | 有限会社アイ・コーポレーション | 3,302,000 | 9.94% |
| 3 | 塚本 武 | 2,550,600 | 7.68% |
| 4 | ＵＨＰａｒｔｎｅｒｓ2投資事業有限責任組合 | 2,500,200 | 7.53% |
| 5 | 光通信ＫＫ投資事業有限責任組合 | 2,099,200 | 6.32% |
| 6 | 日本マスタートラスト信託銀行株式会社（信託口） | 2,036,900 | 6.13% |
| 7 | NORTHERN TRUST CO.(AVFC) RE FIDELITY FUNDS（常任代理人 香港上海銀行東京支店 セキュリティーズ・サービシズ・オペレーションズ部） | 1,601,400 | 4.82% |
| 8 | 五十嵐 啓介（管理信託受託者 株式会社SMBC信託銀行） | 989,200 | 2.98% |
| 9 | アートネイチャー社員持株会 | 798,935 | 2.40% |
| 10 | 株式会社日本カストディ銀行（信託E口） | 611,300 | 1.84% |
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.