SOUTH KOREA · OPENDART
KANGSTEM BIOTECH CO., LTD.
강스템바이오텍 · 217730 · KOSDAQ · Healthcare · Biotechnology
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 2,171.15 KRW a share on average (8 purchase lines, 7 buyers, 2026-01-28 – 2026-01-30). The close on 2026-10-16 was 11.7% below that price.
The latest purchase (2026-01-30) was at 2,163.12 KRW; the close was 11.3% 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 |
|---|---|---|---|---|---|---|---|
| 2026-01-30 | Yu Yeon sil | Managing director | Bought on the exchange | 1,300 | ₩2,165 | ₩2.8M | DART ↗ |
| 2026-01-30 | Eo Hae Kwan | Managing director | Bought on the exchange | 1,500 | ₩2,139 | ₩3.2M | DART ↗ |
| 2026-01-30 | Lee Seung-hee | Inside director | Bought on the exchange | 2,000 | ₩2,180 | ₩4.4M | DART ↗ |
| 2026-01-29 | Lee Kye Jong | Senior managing director | Bought on the exchange | 6,000 | ₩2,128 | ₩12.8M | DART ↗ |
| 2026-01-28 | Lee Kye Jong | Senior managing director | Bought on the exchange | 4,000 | ₩2,157 | ₩8.6M | DART ↗ |
| 2026-01-28 | Bae Yo han | Senior managing director | Bought on the exchange | 10,637 | ₩2,160 | ₩23.0M | DART ↗ |
| 2026-01-28 | Kim Won Gyun | Inside director | Bought on the exchange | 4,000 | ₩2,155 | ₩8.6M | DART ↗ |
| 2026-01-28 | Na Jong Cheon | CEO | Bought on the exchange | 20,000 | ₩2,198 | ₩44.0M | DART ↗ |
Other changes in holdings · 42
Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.
| Date | Insider | Role | Reason | Shares | Filing |
|---|---|---|---|---|---|
| 2025-08-26 | Yu Yeon sil | Director | Others(-) | 1,012 | DART ↗ |
| 2025-08-26 | Yu Yeon sil | Director | Acquisition of paid-in new shares(+) | 1,160 | DART ↗ |
| 2025-08-26 | Lee Mee Hye | Managing director | Others(-) | 19,659 | DART ↗ |
| 2025-08-26 | Lee Mee Hye | Managing director | Others(-) | 4,068 | DART ↗ |
| 2025-08-26 | Lee Mee Hye | Managing director | Acquisition of paid-in new shares(+) | 19,659 | DART ↗ |
| 2025-08-26 | Eo Hae Kwan | Managing director | Others(-) | 4,192 | DART ↗ |
| 2025-08-26 | Eo Hae Kwan | Managing director | Acquisition of paid-in new shares(+) | 4,808 | DART ↗ |
| 2025-08-26 | Lee Kye Jong | Senior managing director | Others(-) | 16,348 | DART ↗ |
| 2025-08-26 | Lee Kye Jong | Senior managing director | Acquisition of paid-in new shares(+) | 18,754 | DART ↗ |
| 2025-08-26 | Bae Yo han | Senior managing director | Others(-) | 24,737 | DART ↗ |
| 2025-08-26 | Bae Yo han | Senior managing director | Acquisition of paid-in new shares(+) | 28,378 | DART ↗ |
| 2025-08-26 | Choi Jung Ho | Non-executive director | Others(-) | 66,193 | DART ↗ |
| 2025-08-26 | Choi Jung Ho | Non-executive director | Acquisition of paid-in new shares(+) | 66,193 | DART ↗ |
| 2025-08-26 | Lee Seung-hee | Inside director | Others(-) | 7,000 | DART ↗ |
| 2025-08-26 | Lee Seung-hee | Inside director | Others(-) | 6,108 | DART ↗ |
| 2025-08-26 | Lee Seung-hee | Inside director | Acquisition of paid-in new shares(+) | 7,000 | DART ↗ |
| 2025-08-26 | Kim Won Gyun | Inside director | Others(-) | 4,251 | DART ↗ |
| 2025-08-26 | Kim Won Gyun | Inside director | Acquisition of paid-in new shares(+) | 4,876 | DART ↗ |
| 2025-08-26 | Na Jong Cheon | CEO | Others(-) | 75,742 | DART ↗ |
| 2025-08-26 | Na Jong Cheon | CEO | Acquisition of paid-in new shares(+) | 86,891 | DART ↗ |
| 2025-08-26 | Kang Kyung Sun | 10% shareholder | Others(-) | 534,576 | DART ↗ |
| 2025-08-26 | Kang Kyung Sun | 10% shareholder | Acquisition of paid-in new shares(+) | 534,576 | DART ↗ |
| 2025-08-26 | Sejong Corp. | 10% shareholder | Others(-) | 9,254,149 | DART ↗ |
| 2025-08-26 | Sejong Corp. | 10% shareholder | Acquisition of paid-in new shares(+) | 10,616,373 | DART ↗ |
| 2025-08-07 | Sejong Corp. | 10% shareholder | Acquisition in exchange(+) | 30,000 | DART ↗ |
| 2025-08-06 | Sejong Corp. | 10% shareholder | Acquisition in exchange(+) | 324,149 | DART ↗ |
| 2025-08-06 | Choi Jung Ho | Non-executive director | Disposal in exchange(-) | 66,192 | DART ↗ |
| 2025-08-05 | Sejong Corp. | 10% shareholder | Acquisition in OTC(+) | 1,247,343 | DART ↗ |
| 2025-08-05 | Kang Kyung Sun | 10% shareholder | Disposal in OTC(-) | 1,247,343 | DART ↗ |
| 2025-08-04 | Sejong Corp. | 10% shareholder | Acquisition in exchange(+) | 400,000 | DART ↗ |
| 2025-08-01 | Sejong Corp. | 10% shareholder | Acquisition in exchange(+) | 1,829,330 | DART ↗ |
| 2025-07-23 | Sejong Corp. | 10% shareholder | Others(+) | 5,423,327 | DART ↗ |
| 2025-07-23 | Yu Yeon sil | Director | Others(+) | 1,012 | DART ↗ |
| 2025-07-23 | Lee Mee Hye | Managing director | Others(+) | 23,727 | DART ↗ |
| 2025-07-23 | Eo Hae Kwan | Managing director | Others(+) | 4,192 | DART ↗ |
| 2025-07-23 | Lee Kye Jong | Senior managing director | Others(+) | 16,348 | DART ↗ |
| 2025-07-23 | Bae Yo han | Senior managing director | Others(+) | 24,737 | DART ↗ |
| 2025-07-23 | Choi Jung Ho | Non-executive director | Others(+) | 132,385 | DART ↗ |
| 2025-07-23 | Lee Seung-hee | Inside director | Others(+) | 13,108 | DART ↗ |
| 2025-07-23 | Kim Won Gyun | Inside director | Others(+) | 4,251 | DART ↗ |
| 2025-07-23 | Na Jong Cheon | CEO | Others(+) | 75,742 | DART ↗ |
| 2025-07-23 | Kang Kyung Sun | 10% shareholder | Others(+) | 1,781,919 | DART ↗ |