Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

SAMHYUN CO.,LTD

삼현 · 437730 · KOSDAQ · Industrials · Electrical Equipment & Parts

Score

59.1

Rank 242 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%60
Size 25%55
Role 20%65
Recency 10%14
Conviction 10%100

Insider timeline

3 insiders bought within 5 days, 19 Jun to 23 Jun: 2 Executive, 1 CEO / chair. The share closed at 44,150.00 on the first of those days and at 39,050.00 most recently (−11.6%).

Several insiders within 15 days: 2026-06-19 – 2026-06-23SEO JAEBOKSEO JAEBOKMember of the executive committeeExecutiveHWANG SUNGHOHWANG SUNGHOChief Executive OfficerCEO / chairKIM CHANGGONKIM CHANGGONMember of the executive committeeExecutive2026-06-19 · SEO JAEBOK · purchase · 43,900,000 KRW2026-06-23 · HWANG SUNGHO · purchase · 79,050,000 KRW2026-06-23 · KIM CHANGGON · purchase · 7,950,000 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.

▮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 19 Jun – 23 Jun, with 3 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, −28.2% over these six months

The closing price of each day, from 54,400.00 on 2026-04-21 to 39,050.00 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 −28.2%, the typical one −31.9%, 3.7 points ahead. It is not an index and not a comparison within one industry.

This company: insiders buying per month, last 12 months

1Nov
1Dec
1Jan
Feb
12Mar
Apr
May
3Jun
Jul
Aug
Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
SEO JAEBOKExecutive1—43.9M KRW2026-06-19−11.6%
HWANG SUNGHOCEO / chair1—79.0M KRW2026-06-23+2.4%
KIM CHANGGONExecutive1—8.0M KRW2026-06-23+2.4%

Insiders' buying price vs the latest close

Insiders paid 46,747.78 KRW a share on average (35 purchase lines, 14 buyers, 2025-11-26 – 2026-06-23). The close on 2026-10-16 was 16.5% below that price.

The latest purchase (2026-06-23) was at 39,545.45 KRW; the close was 1.3% 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 dateInsiderRoleTradeSharesPriceValueFiling
2026-06-23KIM CHANGGONVice presidentBought on the exchange200₩39,750₩8.0MDART ↗
2026-06-23HWANG SUNGHOCEOBought on the exchange1,000₩39,500₩39.5MDART ↗
2026-06-23HWANG SUNGHOCEOBought on the exchange1,000₩39,550₩39.5MDART ↗
2026-06-19SEO JAEBOKVice presidentBought on the exchange1,000₩43,900₩43.9MDART ↗
2026-03-10CHOI TAEKUEKManaging directorBought on the exchange480₩52,300₩25.1MDART ↗
2026-03-09PARK MINCHEOLManaging directorBought on the exchange53₩51,415₩2.7MDART ↗
2026-03-06CHOI TAEKUEKManaging directorBought on the exchange226₩44,200₩10.0MDART ↗
2026-03-06PARK MINCHEOLManaging directorBought on the exchange5₩50,200₩251,000DART ↗
2026-03-06KANG DEOKLIMManaging directorBought on the exchange50₩56,300₩2.8MDART ↗
2026-03-06HEO JINManaging directorBought on the exchange29₩51,069₩1.5MDART ↗
2026-03-05CHOI GEOSEUNGManaging directorSold on the exchange2,248₩46,900₩105.4MDART ↗
2026-03-05HEO JINManaging directorBought on the exchange150₩49,503₩7.4MDART ↗
2026-03-05PARK KIWONPresidentBought on the exchange6,394₩49,089₩313.9MDART ↗
2026-03-04PARK MINCHEOLManaging directorBought on the exchange122₩44,810₩5.5MDART ↗
2026-03-04KIM TAEHYOUNGVice presidentBought on the exchange300₩42,800₩12.8MDART ↗
2026-03-04KIM TAEHYOUNGVice presidentBought on the exchange700₩43,000₩30.1MDART ↗
2026-03-04KANG DEOKLIMManaging directorBought on the exchange50₩43,450₩2.2MDART ↗
2026-03-04LEE JAEKOOKManaging directorBought on the exchange1,000₩46,500₩46.5MDART ↗
2026-03-04LEE JAEKOOKManaging directorBought on the exchange200₩43,000₩8.6MDART ↗
2026-03-04HEO JINManaging directorBought on the exchange150₩47,270₩7.1MDART ↗
2026-03-04HAN BYEONGCHEOLManaging directorBought on the exchange100₩48,200₩4.8MDART ↗
2026-03-04PARK KIWONPresidentBought on the exchange4,606₩43,200₩199.0MDART ↗
2026-03-03PARK MINCHEOLManaging directorBought on the exchange125₩52,520₩6.6MDART ↗
2026-03-03HEO JINManaging directorBought on the exchange425₩56,591₩24.1MDART ↗
2026-03-03KIM CHANGGONVice presidentBought on the exchange177₩56,300₩10.0MDART ↗
2026-03-03HAN BYEONGCHEOLManaging directorBought on the exchange99₩51,200₩5.1MDART ↗
2026-03-03WON JUNGUManaging directorBought on the exchange50₩56,800₩2.8MDART ↗
2026-03-03WON JUNGUManaging directorBought on the exchange50₩56,700₩2.8MDART ↗
2026-03-03WON JUNGUManaging directorBought on the exchange50₩56,600₩2.8MDART ↗
2026-03-03WON JUNGUManaging directorBought on the exchange50₩56,000₩2.8MDART ↗
2026-03-03HUR MANKYUSenior managing directorBought on the exchange100₩54,400₩5.4MDART ↗
2026-03-03SEO JAEBOKVice presidentBought on the exchange500₩53,000₩26.5MDART ↗
2026-03-03SEO JAEBOKVice presidentBought on the exchange500₩56,000₩28.0MDART ↗
2026-02-27LEE ILNAMSenior managing directorSold on the exchange3,000₩57,000₩171.0MDART ↗
2026-02-27LEE ILNAMSenior managing directorSold on the exchange900₩58,900₩53.0MDART ↗
2026-01-23CHOI GEOSEUNGManaging directorBought on the exchange555₩66,900₩37.1MDART ↗
2025-12-30HWANG SUNGHOCEOBought on the exchange1,800₩55,593₩100.1MDART ↗
2025-12-26HWANG SEUNGJONGSenior managing directorSold on the exchange10,120₩53,876₩545.2MDART ↗
2025-12-26HWANG HEEJONG10% shareholderSold on the exchange57,780₩53,918₩3.1BDART ↗
2025-12-24HWANG SEUNGJONGSenior managing directorSold on the exchange25,252₩57,593₩1.5BDART ↗
2025-12-24HWANG HEEJONG10% shareholderSold on the exchange31,000₩57,510₩1.8BDART ↗
2025-11-26CHOI GEOSEUNGManaging directorBought on the exchange1,693₩33,199₩56.2MDART ↗
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.

DateInsiderRoleReasonSharesFiling
2026-02-24HWANG HEEJONG10% shareholderOff-hour trading(-)614,376DART ↗
2026-02-24HWANG SEUNGJONGSenior managing directorOff-hour trading(-)241,346DART ↗
2026-02-24PARK KISOON10% shareholderOff-hour trading(-)446,139DART ↗
2026-02-24HWANG SUNGHOCEOOff-hour trading(-)446,139DART ↗
2025-01-01HAN BYEONGCHEOLManaging directorNew appointment(+)5,565DART ↗
2024-10-18HWANG SOKBOOutside director무상신주취득(+)1,236DART ↗
2024-10-18MOON SANGWOOSenior managing director무상신주취득(+)2,200DART ↗
2024-10-18WON JUNGUDirector무상신주취득(+)1,000DART ↗
2024-10-18JIN HONGGYUNExecutive무상신주취득(+)5,000DART ↗
2024-10-18CHOI GEOSEUNGDirector무상신주취득(+)8,000DART ↗
2024-10-18CHOI TAEKUEKDirector무상신주취득(+)8,396DART ↗
2024-10-18PARK MINCHEOLDirector무상신주취득(+)10,000DART ↗
2024-10-18KANG DEOKLIMDirector무상신주취득(+)4,000DART ↗
2024-10-18HEO JINManaging director무상신주취득(+)3,400DART ↗
2024-10-18KIM DAEHOManaging director무상신주취득(+)10,608DART ↗
2024-10-18LEE JAEKOOKManaging director무상신주취득(+)10,200DART ↗
2024-10-18KIM EUIYONGSenior managing director무상신주취득(+)3,578DART ↗
2024-10-18LEE ILNAMSenior managing director무상신주취득(+)2,800DART ↗
2024-10-18SEO JAEBOKVice president무상신주취득(+)14,000DART ↗
2024-10-18KIM CHANGGONVice president무상신주취득(+)2,260DART ↗
2024-10-18PARK KIWONPresident무상신주취득(+)20,200DART ↗
2024-10-18PARK KISOON10% shareholder무상신주취득(+)2,755,872DART ↗
2024-10-18HWANG HEEJONG10% shareholder무상신주취득(+)5,001,920DART ↗
2024-10-18HWANG SEUNGJONGManaging director무상신주취득(+)3,226,944DART ↗
2024-10-18HWANG SUNGHOCEO무상신주취득(+)3,539,336DART ↗