Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

SAMSUNG E&A CO.,LTD

삼성E&A · 028050 · KOSPI · Industrials · Engineering & Construction

Score

45.1

Rank 510 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%40
Size 25%32
Role 20%65
Recency 10%7
Conviction 10%96

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.

Several insiders within 15 days: 2026-04-28 – 2026-05-08Nam Gung-hongNam Gung-hongChief Executive OfficerCEO / chairMoon Seung-ukMoon Seung-ukDirectorBoard member2026-05-06 · Moon Seung-uk · sale · 2,438,000 KRW2026-04-27 · Moon Seung-uk · purchase · 2,445,615 KRW2026-04-28 · Moon Seung-uk · purchase · 56,900 KRW2026-05-08 · Nam Gung-hong · purchase · 53,961,200 KRWMayJunJulAugSepOct

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

Nov
Dec
1Jan
Feb
Mar
1Apr
1May
Jun
Jul
Aug
Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
Nam Gung-hongCEO / chair1—54.0M KRW2026-05-08−30.1%
Moon Seung-ukBoard member212.5M KRW2026-04-27−19.7%

Purchases against sales

96%purchases
Purchases96%56.5M KRW · 3 line(s) · 2 insider(s)
Sales4%2.4M KRW · 1 line(s) · 1 insider(s)

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 dateInsiderRoleTradeSharesPriceValueFiling
2026-05-08Nam Gung-hongCEOBought on the exchange862₩62,600₩54.0MDART ↗
2026-05-06Moon Seung-ukOutside directorSold on the exchange46₩53,000₩2.4MDART ↗
2026-04-28Moon Seung-ukOutside directorBought on the exchange1₩56,900₩56,900DART ↗
2026-04-27Moon Seung-ukOutside directorBought on the exchange45₩54,347₩2.4MDART ↗
2026-01-06Nam Gung-hongCEOBought on the exchange1,841₩24,249₩44.6MDART ↗
2025-12-10Lee Sang-yunManaging directorSold on the exchange600₩24,700₩14.8MDART ↗
2025-12-03Ko Je-hwangManaging directorSold on the exchange5,050₩25,759₩130.1MDART ↗
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.

DateInsiderRoleReasonSharesFiling
2025-11-27Ahn Seong-chanManaging directorNew appointment(+)893DART ↗
2025-11-27Yoon Hye-yeonManaging directorNew appointment(+)510DART ↗
2024-12-04Lee Jeong-eunManaging director신규선임(+)527DART ↗
2024-12-04Yoon Hyeong-sikVice president신규선임(+)3,087DART ↗
2024-12-04Cho Yu-sikManaging director신규선임(+)1,004DART ↗
2024-12-04Lee Dong-heonManaging director신규선임(+)988DART ↗