WEATHERNEWS INC.
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2026-05-31.
| Foreign institutions | 10.17% |
|---|---|
| Individuals | 47.47% |
| Top 10 holders | 55.91% |
| Total shareholders | 27,082 |
Who owns the company
Share of voting unitsIndividuals & others 47.47%Other corporations 30.07%Financial institutions 11.59%Foreign institutions 10.17%Securities firms 0.59%Foreign individuals 0.11%
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 | 47.47% | 26,801 |
| Other corporations | 30.07% | 106 |
| Financial institutions | 11.59% | 11 |
| Foreign institutions | 10.17% | 112 |
| Securities firms | 0.59% | 26 |
| Foreign individuals | 0.11% | 26 |
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 | 一般財団法人WNI気象文化創造センター | 6,800,000 | 15.31% |
| 2 | 株式会社ダブリュー・エヌ・アイ・インスティテュート | 6,800,000 | 15.31% |
| 3 | 日本マスタートラスト信託銀行株式会社（信託口） | 2,780,600 | 6.26% |
| 4 | STATE STREET BANK AND TRUST COMPANY 505025（常任代理人 株式会社みずほ銀行決済営業部） | 1,741,400 | 3.92% |
| 5 | ウェザーニューズ社員サポーター持株会 | 1,704,608 | 3.84% |
| 6 | 株式会社日本カストディ銀行(信託口) | 1,577,700 | 3.55% |
| 7 | 石橋 忍子 | 1,415,200 | 3.19% |
| 8 | 日本生命保険相互会社 | 800,000 | 1.80% |
| 9 | 石橋 知博 | 691,800 | 1.56% |
| 10 | 石橋 伸一 | 518,800 | 1.17% |
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.