ilShinbiobase Co., Ltd.
KOSDAQ
Shareholding pattern
As reported to FSS/DART, 2025-12-31.
| Largest shareholder group | 30.93% |
|---|---|
| Minority shareholders | 63.30% |
| Top 10 holders | 30.93% |
| Total shareholders | 32,151 |
Who owns the company
Share of shares outstandingMinority shareholders 63.3%Largest shareholder & related parties 30.93%Institutions & other holders 5.77%
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 | 63.30% | 32,145 |
| Largest shareholder & related parties | 30.93% | — |
| Institutions & other holders | 5.77% | — |
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 | 홍성대 | 13,100,000 | 29.63% |
| 2 | 김재용 | 279,000 | 0.63% |
| 3 | 홍중기 | 274,110 | 0.62% |
| 4 | 홍성일 | 15,000 | 0.03% |
| 5 | 홍인애 | 10,000 | 0.02% |
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.