As reported to FSS/DART, 2025-03-31.
| Largest shareholder group | 35.48% |
|---|---|
| Minority shareholders | 52.00% |
| Top 10 holders | 35.48% |
| Total shareholders | 6,748 |
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.
| Investor category | Holding % | Shareholders |
|---|---|---|
| Minority shareholders | 52.00% | 6,740 |
| Largest shareholder & related parties | 35.48% | — |
| Institutions & other holders | 12.52% | — |
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.
| S.No. | Shareholder | Shares | Stake % |
|---|---|---|---|
| 1 | 서울대학교병원 | 2,245,611 | 32.86% |
| 2 | 신흥철 | 57,800 | 0.85% |
| 3 | 정명환 | 38,490 | 0.56% |
| 4 | 서울대의과대학교교육연구재단 | 37,000 | 0.54% |
| 5 | 채호석 | 22,756 | 0.33% |
| 6 | 분당서울대학교병원 | 15,000 | 0.22% |
| 7 | 홍우선 | 5,249 | 0.08% |
| 8 | 김주열 | 1,500 | 0.02% |
| 9 | 이지원 | 419 | 0.01% |
| 10 | 권상윤 | 1,000 | 0.01% |
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.