SOUTH KOREA · OPENDART
SAMSUNG E&A CO.,LTD
삼성E&A · 028050 · KOSPI · Industrials · Engineering & Construction
Score
45.1
Insider timeline
2 insiders bought within 11 days, 28 Apr to 8 May: 1 Board member, 1 CEO / chair. The share closed at 56,300.00 on the first of those days and at 43,600.00 most recently (−22.6%). 1 of the buyers also disclosed a sale in the window.
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.
×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.
▮Purple band: several insiders bought within 15 days
The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 28 Apr – 8 May, with 2 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.
Blue line: this share's price, −15.7% over these six months
The closing price of each day, from 51,700.00 on 2026-04-21 to 43,600.00 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 −15.7%, the typical one −20.4%, 4.7 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 |
|---|---|---|---|---|---|---|
| Nam Gung-hong | CEO / chair | 1 | — | 54.0M KRW | 2026-05-08 | −30.1% |
| Moon Seung-uk | Board member | 2 | 1 | 2.5M KRW | 2026-04-27 | −19.7% |
Purchases against sales
Shares of the reported value of insider transactions in the 180-day window. Sales include disposals for tax, at option exercise or under a pre-set plan, which say little about an insider's view. The split describes what was disclosed; it is not a signal.
Insiders' buying price vs the latest close
Insiders paid 36,779.24 KRW a share on average (4 purchase lines, 2 buyers, 2026-01-06 – 2026-05-08). The close on 2026-10-16 was 18.5% above that price.
The latest purchase (2026-05-08) was at 62,600.00 KRW; the close was 30.4% 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 |
|---|---|---|---|---|---|---|---|
| 2026-05-08 | Nam Gung-hong | CEO | Bought on the exchange | 862 | ₩62,600 | ₩54.0M | DART ↗ |
| 2026-05-06 | Moon Seung-uk | Outside director | Sold on the exchange | 46 | ₩53,000 | ₩2.4M | DART ↗ |
| 2026-04-28 | Moon Seung-uk | Outside director | Bought on the exchange | 1 | ₩56,900 | ₩56,900 | DART ↗ |
| 2026-04-27 | Moon Seung-uk | Outside director | Bought on the exchange | 45 | ₩54,347 | ₩2.4M | DART ↗ |
| 2026-01-06 | Nam Gung-hong | CEO | Bought on the exchange | 1,841 | ₩24,249 | ₩44.6M | DART ↗ |
| 2025-12-10 | Lee Sang-yun | Managing director | Sold on the exchange | 600 | ₩24,700 | ₩14.8M | DART ↗ |
| 2025-12-03 | Ko Je-hwang | Managing director | Sold on the exchange | 5,050 | ₩25,759 | ₩130.1M | DART ↗ |
Other changes in holdings · 6
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 |
|---|---|---|---|---|---|
| 2025-11-27 | Ahn Seong-chan | Managing director | New appointment(+) | 893 | DART ↗ |
| 2025-11-27 | Yoon Hye-yeon | Managing director | New appointment(+) | 510 | DART ↗ |
| 2024-12-04 | Lee Jeong-eun | Managing director | 신규선임(+) | 527 | DART ↗ |
| 2024-12-04 | Yoon Hyeong-sik | Vice president | 신규선임(+) | 3,087 | DART ↗ |
| 2024-12-04 | Cho Yu-sik | Managing director | 신규선임(+) | 1,004 | DART ↗ |
| 2024-12-04 | Lee Dong-heon | Managing director | 신규선임(+) | 988 | DART ↗ |