SOUTH KOREA · OPENDART
SAMSUNG BIOLOGICS CO.,LTD.
삼성바이오로직스 · 207940 · KOSPI · Healthcare · Biotechnology
Score
Not ranked: no net buying on the exchange by an individual insider in the last 180 days.
Insider timeline
No purchase in the last 180 days; 1 insiders sold.
Tap an item for what it means.
×A sale
A cross is one insider's sales on one day. People sell to pay tax, to cash in share awards or to hold less of one company, so a sale says less than a purchase does. When someone bought and sold on the same day, the cross sits beside the dot. The totals are under “Purchases against sales” below.
Blue line: this share's price, −18.3% over these six months
The closing price of each day, from 1,588,000.00 on 2026-04-21 to 1,298,000.00 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, −20.4%
Taken from the 685 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 −18.3%, the typical one −20.4%, 2.1 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 |
|---|---|---|---|---|---|---|
| Cho Seong-hwan | Executive | — | 1 | — | — | — |
Insiders' buying price vs the latest close
Insiders paid 1,677,551.72 KRW a share on average (2 purchase lines, 2 buyers, 2025-11-24 – 2025-12-05). The close on 2026-10-16 was 22.6% below that price.
The latest purchase (2025-12-05) was at 1,640,000.00 KRW; the close was 20.9% 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 |
|---|---|---|---|---|---|---|---|
| 2026-07-29 | Cho Seong-hwan | Managing director | Sold on the exchange | 50 | ₩1,482,000 | ₩74.1M | DART ↗ |
| 2025-12-24 | Dong Joong Kim | Vice president | Sold on the exchange | 210 | ₩1,709,000 | ₩358.9M | DART ↗ |
| 2025-12-05 | Lo Kun | Vice president | Bought on the exchange | 60 | ₩1,640,000 | ₩98.4M | DART ↗ |
| 2025-11-24 | Jin Yonghwan | Managing director | Bought on the exchange | 27 | ₩1,761,000 | ₩47.5M | DART ↗ |
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 |
|---|---|---|---|---|---|
| 2026-05-13 | Cho Seong-hwan | Managing director | Others(+) | 50 | DART ↗ |
| 2025-11-28 | Dong Joong Kim | Vice president | Donation(-) | 400 | DART ↗ |
| 2025-11-25 | Soyeon Ahn | Managing director | New appointment(+) | 387 | DART ↗ |
| 2025-11-03 | Samsung Electronics | 10% shareholder | Company split-off | 7,767,365 | DART ↗ |
| 2025-11-03 | Samsung C&T Corporation | 10% shareholder | Company split-off | 10,714,355 | DART ↗ |
| 2025-11-01 | Lee Jae-seon | Managing director | Company split-off | 95 | DART ↗ |
| 2025-11-01 | Kim Hui-jeong | Managing director | Company split-off | 1 | DART ↗ |
| 2025-11-01 | YoungJin Cho | Managing director | Company split-off | 209 | DART ↗ |
| 2025-11-01 | Sangwon Seo | Managing director | Company split-off | 264 | DART ↗ |
| 2025-11-01 | Jin Yonghwan | Managing director | Company split-off | 29 | DART ↗ |
| 2025-11-01 | Dong Joong Kim | Vice president | Company split-off | 1,620 | DART ↗ |
| 2025-11-01 | JAMES JAEHOCHOI | Vice president | Company split-off | 352 | DART ↗ |
| 2025-11-01 | Yoon Yeo-wan | Managing director | Company split-off | 19 | DART ↗ |
| 2025-11-01 | Hwang In-chan | Managing director | Company split-off | 16 | DART ↗ |
| 2025-11-01 | Hong Yeon-jin | Managing director | Company split-off | 11 | DART ↗ |
| 2025-11-01 | Yoon Jong-gyu | Managing director | Company split-off | 12 | DART ↗ |
| 2025-11-01 | Kim Gi-jung | Managing director | Company split-off | 30 | DART ↗ |
| 2025-11-01 | Lee Gyu-ho | Vice president | Company split-off | 35 | DART ↗ |
| 2025-11-01 | Yoo Seung-ho | Vice president | Company split-off | 70 | DART ↗ |
| 2025-11-01 | Rim John Chongbo | CEO | Company split-off | 140 | DART ↗ |
| 2025-07-04 | Park Yong | Managing director | Others(+) | 465 | DART ↗ |
| 2024-12-26 | Shim Byeong-hwa | Managing director | 기타(+) | 494 | DART ↗ |
| 2024-12-06 | Yoon Yeo-wan | Managing director | 신규선임(+) | 14 | DART ↗ |
| 2024-12-04 | Cho Seong-il | Managing director | 기타(+) | 195 | DART ↗ |
| 2024-11-29 | Hwang In-chan | Managing director | 신규선임(+) | 44 | DART ↗ |