SOUTH KOREA · OPENDART
OSTEONIC Co., Ltd.
오스테오닉 · 226400 · KOSDAQ · Healthcare · Medical Devices
Score
Not ranked: no net buying on the exchange by an individual insider in the last 180 days.
Insiders' buying price vs the latest close
Insiders paid 6,192.38 KRW a share on average (6 purchase lines, 2 buyers, 2025-11-21 – 2026-01-07). The close on 2026-10-16 was 30.2% below that price.
The latest purchase (2026-01-07) was at 6,400.00 KRW; the close was 32.5% below that price.
Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored.
Insider trades on the exchange
Purchases and sales on the exchange in the last 12 months. The filing gives the settlement date; the trade date is two trading days earlier.
| Trade date | Insider | Role | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-03-04 | Oh DongSun | Director | Sold on the exchange | 4,061 | ₩6,010 | ₩24.4M | DART ↗ |
| 2026-01-07 | Lee Dong Won | CEO | Bought on the exchange | 4,000 | ₩6,400 | ₩25.6M | DART ↗ |
| 2026-01-06 | Lee Dong Won | CEO | Bought on the exchange | 13,895 | ₩6,138 | ₩85.3M | DART ↗ |
| 2026-01-05 | Lee Dong Won | CEO | Bought on the exchange | 15,889 | ₩6,159 | ₩97.9M | DART ↗ |
| 2026-01-02 | Lee Dong Won | CEO | Bought on the exchange | 21,000 | ₩6,339 | ₩133.1M | DART ↗ |
| 2025-12-30 | Lee Dong Won | CEO | Bought on the exchange | 11,111 | ₩6,273 | ₩69.7M | DART ↗ |
| 2025-11-21 | Yoon Chulsoo | Senior managing director | Bought on the exchange | 14,000 | ₩5,941 | ₩83.2M | DART ↗ |
Other changes in holdings · 4
Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.