Aidma Marketing Communication Corporation
TSE Standard
Shareholding pattern
As reported in the annual securities report, 2026-03-31.
| Foreign institutions | 0.31% |
|---|---|
| Individuals | 53.98% |
| Top 10 holders | 71.39% |
| Total shareholders | 4,081 |
Who owns the company
Share of voting unitsIndividuals & others 53.98%Other corporations 41.47%Financial institutions 3.12%Securities firms 1.02%Foreign institutions 0.31%Foreign individuals 0.1%
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 | 53.98% | 4,004 |
| Other corporations | 41.47% | 24 |
| Financial institutions | 3.12% | 3 |
| Securities firms | 1.02% | 16 |
| Foreign institutions | 0.31% | 12 |
| Foreign individuals | 0.10% | 22 |
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 | 株式会社シュリンプバレー | 5,449,200 | 40.44% |
| 2 | 蛯谷 貴 | 2,651,800 | 19.68% |
| 3 | 株式会社日本カストディ銀行（信託Ｅ口） | 372,000 | 2.76% |
| 4 | 光通信KK投資事業有限責任組合 | 315,200 | 2.34% |
| 5 | 飯島 功市郎 | 204,700 | 1.52% |
| 6 | 岡元 信 | 142,000 | 1.05% |
| 7 | 桑原 由治 | 140,300 | 1.04% |
| 8 | 長澤 秀幸 | 123,100 | 0.91% |
| 9 | 株式会社バローホールディングス | 121,200 | 0.90% |
| 10 | アイドマ社員持株会 | 101,283 | 0.75% |
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.