Writeup Co.,Ltd.

6580 TSE Industrials Services
TSE Growth

Shareholding pattern

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

Foreign institutions9.37%
Individuals78.10%
Top 10 holders71.98%
Total shareholders2,511

Who owns the company

Share of voting units
Individuals & others: 78.1%Foreign institutions: 9.37%Securities firms: 8.27%Other corporations: 3.65%Financial institutions: 0.45%Foreign individuals: 0.16%78.1%Individuals & others
Individuals & others 78.1%Foreign institutions 9.37%Securities firms 8.27%Other corporations 3.65%Financial institutions 0.45%Foreign individuals 0.16%

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
020406080100FY23FY24FY25FY26FY2023 — Foreign institutions: 4 %FY2024 — Foreign institutions: 4 %FY2025 — Foreign institutions: 5 %FY2026 — Foreign institutions: 9 %FY2023 — Financial institutions: 9 %FY2024 — Financial institutions: 8 %FY2025 — Financial institutions: 6 %FY2026 — Financial institutions: 0 %FY2023 — Individuals: 82 %FY2024 — Individuals: 82 %FY2025 — Individuals: 80 %FY2026 — Individuals: 78 %FY2023 — Other corporations: 3 %FY2024 — Other corporations: 3 %FY2025 — Other corporations: 2 %FY2026 — Other corporations: 4 %FY2023 — Securities firms: 2 %FY2024 — Securities firms: 3 %FY2025 — Securities firms: 7 %FY2026 — Securities firms: 8 %
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 & others78.10%2,423
Foreign institutions9.37%26
Securities firms8.27%19
Other corporations3.65%23
Financial institutions0.45%2
Foreign individuals0.16%18

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白石 崇2,478,00048.35%
2INTERACTIVE BROKERS LLC(常任代理人 インタラクティブ・ブローカーズ証券株式会社)255,0004.97%
3大和証券株式会社182,0003.55%
4モルガン・スタンレーMUFG証券株式会社177,0003.46%
5新沼 吾史160,0003.12%
6株式会社チェンジホールディングス116,0002.26%
7WILL FIELD CAPITAL PTE. LTD.(常任代理人 三田証券株式会社)100,0001.95%
8槇田 重夫87,0001.71%
9上田八木短資株式会社83,0001.62%
10ライトアップ従業員持株会51,0000.99%

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.