ALT Co., Ltd.
KOSDAQ
Shareholding pattern
As reported to FSS/DART, 2025-12-31.
| Largest shareholder group | 19.30% |
|---|---|
| Minority shareholders | 47.79% |
| Top 10 holders | 19.31% |
| Total shareholders | 12,378 |
Who owns the company
Share of shares outstandingMinority shareholders 47.79%Institutions & other holders 32.91%Largest shareholder & related parties 19.3%
How to read this: the largest shareholder group is the controlling owner and related parties — a big slice means tight control. Minority shareholders are the many small holders. The remainder is mostly institutional and foreign money, which the regulator does not itemise separately.
Ownership detail
| Investor category | Holding % | Shareholders |
|---|---|---|
| Minority shareholders | 47.79% | 12,368 |
| Institutions & other holders | 32.91% | — |
| Largest shareholder & related parties | 19.30% | — |
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 | 이상수 | 4,048,260 | 16.15% |
| 2 | 최희태 | 275,000 | 1.10% |
| 3 | 이희윤 | 275,000 | 1.10% |
| 4 | 윤서영 | 200,000 | 0.80% |
| 5 | 김선필 | 40,000 | 0.16% |
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.