Sumiseki Holdings,Inc.

1514 TSE Materials Mining
TSE Standard

Shareholding pattern

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

Foreign institutions1.76%
Individuals33.74%
Top 10 holders70.45%
Total shareholders25,984

Who owns the company

Share of voting units
Other corporations: 54.97%Individuals & others: 33.74%Financial institutions: 5.59%Securities firms: 3.48%Foreign institutions: 1.76%Foreign individuals: 0.46%55%Other corporations
Other corporations 54.97%Individuals & others 33.74%Financial institutions 5.59%Securities firms 3.48%Foreign institutions 1.76%Foreign individuals 0.46%

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
0204060FY23FY24FY25FY26FY2023 — Foreign institutions: 1 %FY2024 — Foreign institutions: 6 %FY2025 — Foreign institutions: 1 %FY2026 — Foreign institutions: 2 %FY2023 — Financial institutions: 13 %FY2024 — Financial institutions: 7 %FY2025 — Financial institutions: 7 %FY2026 — Financial institutions: 6 %FY2023 — Individuals: 48 %FY2024 — Individuals: 34 %FY2025 — Individuals: 33 %FY2026 — Individuals: 34 %FY2023 — Other corporations: 25 %FY2024 — Other corporations: 50 %FY2025 — Other corporations: 56 %FY2026 — Other corporations: 55 %FY2023 — Securities firms: 13 %FY2024 — Securities firms: 3 %FY2025 — Securities firms: 2 %FY2026 — Securities firms: 3 %
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 corporations54.97%148
Individuals & others33.74%25,381
Financial institutions5.59%14
Securities firms3.48%38
Foreign institutions1.76%54
Foreign individuals0.46%349

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株式会社麻生34,044,00056.91%
2日本マスタートラスト信託銀行株式会社(信託口)2,061,0003.44%
3三井住友カード株式会社1,679,0002.81%
4株式会社三井住友銀行1,324,0002.21%
5株式会社日本総合研究所836,0001.40%
6楽天証券株式会社共有口593,0000.99%
7モルガン・スタンレーMUFG証券株式会社539,0000.90%
8株式会社SBI証券376,0000.63%
9大澤 政俊363,0000.61%
10野村證券株式会社327,0000.55%

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.