Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

JETEMA Co.,Ltd.

제테마 · 216080 · KOSDAQ · Healthcare · Medical Instruments & Supplies

Score

83.6

Rank 27 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%100
Size 25%80
Role 20%65
Recency 10%58
Conviction 10%100

Insider timeline

3 insiders bought within 9 days, 11 Jun to 19 Jun: 2 Executive, 1 Board member. 2 of them bought again later. 1 more bought afterwards. The share closed at 4,840.00 on the first of those days and at 5,990.00 most recently (+23.8%).

Several insiders within 15 days: 2026-06-11 – 2026-06-19CHO SANG JUNCHO SANG JUNMember of the executive committeeExecutiveKIM HYUNGSUKKIM HYUNGSUKMember of the executive committeeExecutiveYOO GEUN JIKYOO GEUN JIKChief Executive OfficerCEO / chairPARK JAE SEONGPARK JAE SEONGDirectorBoard memberkwak Minjungkwak MinjungDirectorBoard member2026-04-21 · PARK JAE SEONG · purchase · 35,850,000 KRW2026-04-22 · PARK JAE SEONG · purchase · 35,615,000 KRW2026-06-01 · PARK JAE SEONG · purchase · 48,920,000 KRW2026-06-02 · PARK JAE SEONG · purchase · 14,376,000 KRW2026-06-04 · PARK JAE SEONG · purchase · 35,784,000 KRW2026-06-04 · kwak Minjung · purchase · 15,993,600 KRW2026-06-05 · kwak Minjung · purchase · 491,500 KRW2026-06-08 · kwak Minjung · purchase · 8,178,700 KRW2026-06-09 · kwak Minjung · purchase · 22,161,030 KRW2026-06-10 · kwak Minjung · purchase · 46,803,540 KRW2026-06-11 · kwak Minjung · purchase · 2,617,680 KRW2026-06-15 · CHO SANG JUN · purchase · 270,325 KRW2026-06-19 · KIM HYUNGSUK · purchase · 52,372,637 KRW2026-07-22 · KIM HYUNGSUK · purchase · 4,217,000 KRW2026-07-28 · KIM HYUNGSUK · purchase · 40,366,808 KRW2026-07-29 · KIM HYUNGSUK · purchase · 414,440 KRW2026-08-18 · KIM HYUNGSUK · purchase · 29,120,000 KRW2026-08-27 · YOO GEUN JIK · purchase · 16,240,000 KRW2026-09-15 · CHO SANG JUN · purchase · 267,436 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 11 Jun – 19 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, −16.5% over these six months

The closing price of each day, from 7,170.00 on 2026-04-21 to 5,990.00 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 −16.5%, the typical one −31.9%, 15.4 points ahead. It is not an index and not a comparison within one industry.

This company: insiders buying per month, last 12 months

2Nov
3Dec
2Jan
1Feb
1Mar
1Apr
May
4Jun
1Jul
2Aug
1Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
CHO SANG JUNExecutive2—537.8k KRW2026-06-15+20.5%
KIM HYUNGSUKExecutive5—126.5M KRW2026-06-19+29.4%
YOO GEUN JIKCEO / chair1—16.2M KRW2026-08-27+23.9%
PARK JAE SEONGBoard member5—170.5M KRW2026-04-21−16.5%
kwak MinjungBoard member6—96.2M KRW2026-06-04+15.6%

Insiders' buying price vs the latest close

Insiders paid 6,049.74 KRW a share on average (42 purchase lines, 7 buyers, 2025-10-20 – 2026-09-15). The close on 2026-10-16 was 1.0% below that price.

The latest purchase (2026-09-15) was at 7,228.00 KRW; the close was 17.1% 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
2026-09-15CHO SANG JUNManaging directorBought on the exchange37₩7,228₩267,436DART ↗
2026-08-27YOO GEUN JIKVice chairmanBought on the exchange3,500₩4,640₩16.2MDART ↗
2026-08-18KIM HYUNGSUKVice presidentBought on the exchange7,000₩4,160₩29.1MDART ↗
2026-07-29KIM HYUNGSUKVice presidentBought on the exchange104₩3,985₩414,440DART ↗
2026-07-28KIM HYUNGSUKVice presidentBought on the exchange9,602₩4,204₩40.4MDART ↗
2026-07-22KIM HYUNGSUKVice presidentBought on the exchange1,000₩4,217₩4.2MDART ↗
2026-06-19KIM HYUNGSUKVice presidentBought on the exchange11,513₩4,549₩52.4MDART ↗
2026-06-15CHO SANG JUNManaging directorBought on the exchange55₩4,915₩270,325DART ↗
2026-06-11kwak MinjungDirectorBought on the exchange100₩4,836₩483,600DART ↗
2026-06-11kwak MinjungDirectorBought on the exchange456₩4,680₩2.1MDART ↗
2026-06-10kwak MinjungDirectorBought on the exchange9,870₩4,742₩46.8MDART ↗
2026-06-09kwak MinjungDirectorBought on the exchange4,574₩4,845₩22.2MDART ↗
2026-06-08kwak MinjungDirectorBought on the exchange1,700₩4,811₩8.2MDART ↗
2026-06-05kwak MinjungDirectorBought on the exchange100₩4,915₩491,500DART ↗
2026-06-04PARK JAE SEONGAuditorBought on the exchange7,000₩5,112₩35.8MDART ↗
2026-06-04kwak MinjungDirectorBought on the exchange3,200₩4,998₩16.0MDART ↗
2026-06-02PARK JAE SEONGAuditorBought on the exchange3,000₩4,792₩14.4MDART ↗
2026-06-01PARK JAE SEONGAuditorBought on the exchange10,000₩4,892₩48.9MDART ↗
2026-04-22PARK JAE SEONGAuditorBought on the exchange5,000₩7,123₩35.6MDART ↗
2026-04-21PARK JAE SEONGAuditorBought on the exchange5,000₩7,170₩35.9MDART ↗
2026-04-14PARK JAE SEONGAuditorBought on the exchange5,000₩7,422₩37.1MDART ↗
2026-04-13PARK JAE SEONGAuditorBought on the exchange5,000₩7,350₩36.8MDART ↗
2026-03-17CHO SANG JUNManaging directorBought on the exchange132₩8,760₩1.2MDART ↗
2026-02-27PARK JAE SEONGAuditorBought on the exchange5,000₩9,790₩49.0MDART ↗
2026-02-24PARK JAE SEONGAuditorBought on the exchange6,000₩9,748₩58.5MDART ↗
2026-02-23PARK JAE SEONGAuditorBought on the exchange5,000₩10,146₩50.7MDART ↗
2026-02-20PARK JAE SEONGAuditorBought on the exchange2,050₩10,033₩20.6MDART ↗
2026-02-13PARK JAE SEONGAuditorBought on the exchange450₩10,000₩4.5MDART ↗
2026-02-12PARK JAE SEONGAuditorBought on the exchange1,500₩9,920₩14.9MDART ↗
2026-01-14PARK JAE SEONGAuditorBought on the exchange1,000₩6,945₩6.9MDART ↗
2026-01-12PARK JAE SEONGAuditorSold on the exchange1,000₩7,100₩7.1MDART ↗
2026-01-02KIM EUISUManaging directorBought on the exchange7,030₩6,250₩43.9MDART ↗
2025-12-29KIM EUISUManaging directorBought on the exchange3,170₩6,231₩19.8MDART ↗
2025-12-29KIM EUISUManaging directorBought on the exchange4,800₩6,131₩29.4MDART ↗
2025-12-16CHO SANG JUNManaging directorBought on the exchange49₩5,630₩275,870DART ↗
2025-12-15PARK JONG WOOManaging directorBought on the exchange300₩5,910₩1.8MDART ↗
2025-11-28YUN BUMJINVice chairmanSold on the exchange10,000₩6,005₩60.0MDART ↗
2025-11-21PARK JONG WOOManaging directorBought on the exchange100₩5,540₩554,000DART ↗
2025-11-19CHO SANG JUNManaging directorBought on the exchange1₩5,570₩5,570DART ↗
2025-11-11CHO SANG JUNManaging directorBought on the exchange5₩5,750₩28,750DART ↗
2025-11-10CHO SANG JUNManaging directorBought on the exchange43₩5,630₩242,090DART ↗
2025-10-22PARK JONG WOOManaging directorBought on the exchange100₩5,790₩579,000DART ↗
2025-10-22PARK JAE SEONGAuditorSold on the exchange1,000₩5,800₩5.8MDART ↗
2025-10-20PARK JONG WOOManaging directorBought on the exchange100₩5,880₩588,000DART ↗
2025-10-20KIM HYUNGSUKVice presidentBought on the exchange10,000₩5,749₩57.5MDART ↗
Other changes in holdings · 47

Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.

DateInsiderRoleReasonSharesFiling
2026-09-23Nam jeong sunCEOOthers(-)29,000DART ↗
2026-09-18kwak MinjungDirectorOthers(+)50,000DART ↗
2026-09-18Nam jeong sunCEOOthers(-)50,000DART ↗
2026-09-09KIM JAEYOUNGExecutiveOthers(-)180,000DART ↗
2026-09-02Nam jeong sunCEOOthers(-)10,000DART ↗
2026-09-02kwak MinjungDirectorOthers(+)10,000DART ↗
2026-09-01Nam jeong sunCEOOthers(-)50,000DART ↗
2026-09-01kwak MinjungDirectorOthers(+)50,000DART ↗
2026-08-28Nam jeong sunCEOOthers(-)10,000DART ↗
2026-08-28kwak MinjungDirectorOthers(+)10,000DART ↗
2026-07-28Nam jeong sunCEOOthers(-)50,000DART ↗
2026-07-28kwak MinjungDirectorOthers(+)50,000DART ↗
2026-06-24Nam jeong sunCEOBorrowing(+)29,000DART ↗
2026-06-19Nam jeong sunCEOBorrowing(+)170,000DART ↗
2026-06-19kwak MinjungDirectorLending(-)170,000DART ↗
2026-06-19KIM JAEYOUNGExecutiveBorrowing(+)180,000DART ↗
2026-04-21CHUNG HA JONGSenior managing directorExercise of appraisal rights(+)8,000DART ↗
2026-04-01LEE SINGUDirectorNew appointment(+)6,200DART ↗
2026-04-01kwak MinjungDirectorNew appointment(+)247,406DART ↗
2026-03-31PARK JONG WOOManaging directorExecutive retirement(-)5,000DART ↗
2026-03-31YUN BUMJINVice chairmanExecutive retirement(-)240,000DART ↗
2025-10-27CHUNG HA JONGSenior managing directorStock options(+)114,000DART ↗
2025-10-27YUN BUMJINVice chairmanStock options(+)10,000DART ↗
2025-07-31KIM SEUNGHOSenior managing directorExecutive retirement(-)68,000DART ↗
2025-07-31KWON YOUNGSAMManaging directorExecutive retirement(-)7,000DART ↗
2025-04-28YUN BUMJINVice chairmanStock options(+)14,000DART ↗
2025-03-31PARK JAE SEONGAuditorNew appointment(+)7,490DART ↗
2025-03-31PARK JAE SEONGAuditorNew appointment(+)50,000DART ↗
2025-03-31Cho gi sungAuditorExecutive retirement(-)1,094DART ↗
2025-03-26CHUNG HA JONGSenior managing directorDonation(-)36,000DART ↗
2025-02-24KIM HYUNGSUKVice presidentNew appointment(+)240,000DART ↗
2025-01-06PARK JONG WOOManaging directorAcquisition of new shares without compensation(+)250DART ↗
2025-01-06Cho gi sungAuditor무상신주취득(+)547DART ↗
2025-01-06PARK JONG WOOManaging director무상신주취득(+)1,400DART ↗
2025-01-06KWON YOUNGSAMManaging director무상신주취득(+)3,500DART ↗
2025-01-06JUNG YOUNG CHOONAdviser무상신주취득(+)12,000DART ↗
2025-01-06CHUNG HA JONGSenior managing director무상신주취득(+)31,346DART ↗
2025-01-06KIM SEUNGHOSenior managing director무상신주취득(+)34,000DART ↗
2025-01-06LEE HAKGYUManaging director무상신주취득(+)111,505DART ↗
2025-01-06YUN BUMJINVice chairman무상신주취득(+)113,000DART ↗
2025-01-06Nam jeong sunCEO무상신주취득(+)320,619DART ↗
2025-01-06KIM JAEYOUNGCEO무상신주취득(+)4,233,600DART ↗
2024-11-01LEE HAKGYUManaging director신규선임(+)111,505DART ↗
2024-10-23YUN BUMJINPresident주식매수선택권(+)7,000DART ↗
2024-10-23CHUNG HA JONGSenior managing director주식매수선택권(+)5,000DART ↗
2024-10-23KIM SEUNGHOSenior managing director주식매수선택권(+)10,000DART ↗
2024-10-23KWON YOUNGSAMManaging director주식매수선택권(+)3,500DART ↗