SOUTH KOREA · OPENDART
DongKook Life Science Co., Ltd.
동국생명과학 · 303810 · KOSDAQ · Healthcare · Medical Instruments & Supplies
Score
40.8
Insider timeline
One insider bought, once (26 Jun). The share closed at 2,355.00 that day and at 2,515.00 most recently (+6.8%).
Tap an item for what it means.
●A purchase: the bigger the dot, the more was bought
Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.
Blue line: this share's price, −26.8% over these six months
The closing price of each day, from 3,435.00 on 2026-04-21 to 2,515.00 on 2026-10-16. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.
Dashed line: the typical stock on the same exchange, −31.9%
Taken from the 1525 other stocks on the same exchange that this site holds prices for. Each is measured from the first day of the window, and every day the middle one is drawn. It starts where the blue line starts, so the gap between the two is the difference: this share −26.8%, the typical one −31.9%, 5.1 points ahead. It is not an index and not a comparison within one industry.
This company: insiders buying per month, last 12 months
Darker bars are inside the 180-day window above.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since |
|---|---|---|---|---|---|---|
| Kim Yeong-seon | Executive | 1 | — | 24.2M KRW | 2026-06-26 | +6.8% |
Insiders' buying price vs the latest close
Insiders paid 2,874.50 KRW a share on average (2 purchase lines, 1 buyer, 2026-04-06 – 2026-06-26). The close on 2026-10-16 was 12.5% below that price.
The latest purchase (2026-06-26) was at 2,424.00 KRW; the close was 3.8% above 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.
Other changes in holdings · 25
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 |
|---|---|---|---|---|---|
| 2025-08-08 | DongKook Pharmaceutical Co., Ltd. | 10% shareholder | Acquisition of new shares without compensation(+) | 6,316,500 | DART ↗ |
| 2025-08-08 | Kwon Gi-beom | Inside director | Acquisition of new shares without compensation(+) | 1,776,380 | DART ↗ |
| 2025-08-08 | Park Jae-won | CEO | Acquisition of new shares without compensation(+) | 15,010 | DART ↗ |
| 2025-08-08 | Choi Sun-ho | Director | Acquisition of new shares without compensation(+) | 3,420 | DART ↗ |
| 2025-08-08 | Yang Hui-seong | Senior managing director | Acquisition of new shares without compensation(+) | 7,610 | DART ↗ |
| 2025-08-08 | Park Sang-hun | Director | Acquisition of new shares without compensation(+) | 3,760 | DART ↗ |
| 2025-08-08 | Kim Yeong-seon | Managing director | Acquisition of new shares without compensation(+) | 2,470 | DART ↗ |
| 2025-08-08 | Kim Gi-cheol | Director | Acquisition of new shares without compensation(+) | 2,150 | DART ↗ |
| 2025-07-29 | Life Value-up Private Equity Fund | 10% shareholder | Disposal in exchange(-) | 852,704 | DART ↗ |
| 2025-07-28 | Life Value-up Private Equity Fund | 10% shareholder | Disposal in exchange(-) | 360,541 | DART ↗ |
| 2025-04-01 | Kim Gi-cheol | Director | New appointment(+) | 2,150 | DART ↗ |
| 2025-02-26 | Life Value-up Private Equity Fund | 10% shareholder | Disposal in exchange(-) | 9,799 | DART ↗ |
| 2025-02-25 | Life Value-up Private Equity Fund | 10% shareholder | Disposal in exchange(-) | 93,267 | DART ↗ |
| 2025-02-24 | Life Value-up Private Equity Fund | 10% shareholder | Disposal in exchange(-) | 30,000 | DART ↗ |
| 2025-02-20 | Life Value-up Private Equity Fund | 10% shareholder | Disposal in exchange(-) | 100,000 | DART ↗ |
| 2025-02-19 | Life Value-up Private Equity Fund | 10% shareholder | Disposal in exchange(-) | 750,000 | DART ↗ |
| 2025-02-17 | Life Value-up Private Equity Fund | 10% shareholder | New listing(+) | 3,142,900 | DART ↗ |
| 2025-02-17 | Park Jae-won | CEO | New listing(+) | 15,010 | DART ↗ |
| 2025-02-17 | Kim Yeong-seon | Managing director | New listing(+) | 2,470 | DART ↗ |
| 2025-02-17 | Yang Hui-seong | Senior managing director | New listing(+) | 7,610 | DART ↗ |
| 2025-02-17 | Park Sang-hun | Director | New listing(+) | 3,760 | DART ↗ |
| 2025-02-17 | Lee Sang-ho | Director | New listing(+) | 850 | DART ↗ |
| 2025-02-17 | Choi Sun-ho | Director | New listing(+) | 3,420 | DART ↗ |
| 2025-02-17 | Kwon Gi-beom | Inside director | New listing(+) | 1,776,380 | DART ↗ |
| 2025-02-17 | DongKook Pharmaceutical Co., Ltd. | 10% shareholder | New listing(+) | 6,316,500 | DART ↗ |