SD BIOSENSOR INC.
KOSPI
Shareholding pattern
As reported to FSS/DART, 2025-12-31.
| Largest shareholder group | 71.65% |
|---|---|
| Minority shareholders | 23.30% |
| Top 10 holders | 71.35% |
| Total shareholders | 109,180 |
Who owns the company
Share of shares outstandingLargest shareholder & related parties 71.65%Minority shareholders 23.3%Institutions & other holders 5.05%
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 |
|---|---|---|
| Largest shareholder & related parties | 71.65% | — |
| Minority shareholders | 23.30% | 109,173 |
| Institutions & other holders | 5.05% | — |
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 | 주식회사 바이오노트 | 45,474,283 | 37.35% |
| 2 | 조영식 | 32,589,639 | 26.77% |
| 3 | 이효근 | 4,201,989 | 3.45% |
| 4 | 에스디비인베스트먼트 주식회사 | 3,181,555 | 2.61% |
| 5 | 허태영 | 396,935 | 0.33% |
| 6 | 송근국 | 344,000 | 0.28% |
| 7 | 윤석두 | 293,620 | 0.24% |
| 8 | 조병기 | 150,000 | 0.12% |
| 9 | 나윤경 | 120,000 | 0.10% |
| 10 | 조혜임 | 126,135 | 0.10% |
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.