OIZUMI Corporation

6428 TSE Industrials Machinery
TSE Standard

Shareholding pattern

As reported in the annual securities report, 2026-03-31.

Foreign institutions0.34%
Individuals47.97%
Top 10 holders73.51%
Total shareholders5,451

Who owns the company

Share of voting units
Other corporations: 49.14%Individuals & others: 47.97%Financial institutions: 1.06%Securities firms: 1%Foreign individuals: 0.47%Foreign institutions: 0.34%49.1%Other corporations
Other corporations 49.14%Individuals & others 47.97%Financial institutions 1.06%Securities firms 1%Foreign individuals 0.47%Foreign institutions 0.34%

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 years
01020304050FY23FY24FY25FY26FY2023 — Foreign institutions: 2 %FY2024 — Foreign institutions: 1 %FY2025 — Foreign institutions: 0 %FY2026 — Foreign institutions: 0 %FY2023 — Financial institutions: 5 %FY2024 — Financial institutions: 4 %FY2025 — Financial institutions: 1 %FY2026 — Financial institutions: 1 %FY2023 — Individuals: 44 %FY2024 — Individuals: 44 %FY2025 — Individuals: 48 %FY2026 — Individuals: 48 %FY2023 — Other corporations: 49 %FY2024 — Other corporations: 49 %FY2025 — Other corporations: 49 %FY2026 — Other corporations: 49 %FY2023 — Securities firms: 1 %FY2024 — Securities firms: 2 %FY2025 — Securities firms: 2 %FY2026 — Securities firms: 1 %
Foreign 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 categoryHolding %Shareholders
Other corporations49.14%48
Individuals & others47.97%5,356
Financial institutions1.06%3
Securities firms1.00%18
Foreign individuals0.47%12
Foreign institutions0.34%14

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.ShareholderSharesStake %
1株式会社オーイズミホールディングス10,630,00047.25%
2大泉秀治3,120,00013.87%
3大泉充輝1,011,0004.50%
4大泉賢治604,0002.69%
5オーイズミ取引先持株会244,0001.09%
6石川雄一233,0001.04%
7株式会社商工組合中央金庫210,0000.93%
8波佐間絵美187,0000.83%
9オーイズミ従業員持株会171,0000.76%
10上田八木短資株式会社123,0000.55%

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.

Educational data only. Not a recommendation to buy, sell or hold any security.