HAMAMATSU PHOTONICS K.K.
TSE Prime
Shareholding pattern
As reported in the annual securities report, 2025-09-30.
| Foreign institutions | 29.89% |
|---|---|
| Individuals | 32.18% |
| Top 10 holders | 39.43% |
| Total shareholders | 68,732 |
Who owns the company
Share of voting unitsIndividuals & others 32.18%Financial institutions 30.45%Foreign institutions 29.89%Other corporations 4.66%Securities firms 2.67%Foreign individuals 0.1%Government 0.05%
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 | 32.18% | 67,515 |
| Financial institutions | 30.45% | 47 |
| Foreign institutions | 29.89% | 381 |
| Other corporations | 4.66% | 480 |
| Securities firms | 2.67% | 51 |
| Foreign individuals | 0.10% | 257 |
| Government | 0.05% | 1 |
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 | 日本マスタートラスト信託銀行株式会社（信託口） | 49,757,000 | 16.62% |
| 2 | 株式会社日本カストディ銀行（信託口） | 23,097,000 | 7.72% |
| 3 | 浜松ホトニクス従業員持株会 | 8,818,000 | 2.95% |
| 4 | ジェーピー モルガン チェース バンク 385864（常任代理人 株式会社みずほ銀行決済営業部） | 6,418,000 | 2.14% |
| 5 | 野村信託銀行株式会社（投信口） | 5,967,000 | 1.99% |
| 6 | ステート ストリート バンク アンド トラスト カンパニー 505025（常任代理人 株式会社みずほ銀行決済営業部） | 5,331,000 | 1.78% |
| 7 | 株式会社日本カストディ銀行（信託口４） | 5,000,000 | 1.67% |
| 8 | ステート ストリート バンク アンド トラスト クライアント オムニバス アカウント オーエムゼロツー 505002（常任代理人 株式会社みずほ銀行決済営業部） | 4,740,000 | 1.58% |
| 9 | ジェーピー モルガン チェース バンク 385632（常任代理人 株式会社みずほ銀行決済営業部） | 4,643,000 | 1.55% |
| 10 | ステート ストリート バンク アンド トラスト カンパニー 505001（常任代理人 株式会社みずほ銀行決済営業部） | 4,288,000 | 1.43% |
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.