The Kosei Securities Co.,Ltd.

8617 TSE Financials Securities and Commodities Futures
TSE Standard

Shareholding pattern

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

Foreign institutions1.42%
Individuals52.60%
Top 10 holders61.70%
Total shareholders3,292

Who owns the company

Share of voting units
Individuals & others: 52.6%Other corporations: 43.08%Securities firms: 2.12%Foreign institutions: 1.42%Financial institutions: 0.64%Foreign individuals: 0.15%52.6%Individuals & others
Individuals & others 52.6%Other corporations 43.08%Securities firms 2.12%Foreign institutions 1.42%Financial institutions 0.64%Foreign individuals 0.15%

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: 1 %FY2025 — Foreign institutions: 2 %FY2026 — Foreign institutions: 1 %FY2023 — Financial institutions: 9 %FY2024 — Financial institutions: 7 %FY2025 — Financial institutions: 1 %FY2026 — Financial institutions: 1 %FY2023 — Individuals: 41 %FY2024 — Individuals: 44 %FY2025 — Individuals: 49 %FY2026 — Individuals: 53 %FY2023 — Other corporations: 47 %FY2024 — Other corporations: 44 %FY2025 — Other corporations: 43 %FY2026 — Other corporations: 43 %FY2023 — Securities firms: 2 %FY2024 — Securities firms: 4 %FY2025 — Securities firms: 4 %FY2026 — Securities firms: 2 %
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
Individuals & others52.60%3,198
Other corporations43.08%53
Securities firms2.12%15
Foreign institutions1.42%14
Financial institutions0.64%3
Foreign individuals0.15%9

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 巽也蔵1,896,00020.07%
2株式会社 巽事務所1,165,00012.34%
3株式会社 哲学の道文庫912,0009.65%
4巽   大 介540,0005.72%
5振 角 典 子330,0003.50%
6巽   春 菜299,0003.16%
7内 藤 征 吾281,0002.98%
8森 川 和 宏151,0001.60%
9巽   勇 人144,0001.52%
10振 角 勇 輔110,0001.16%

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.