Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

JEONGMOON INFORMATION CO.,LTD.

제이엠아이 · 033050 · KOSDAQ · Technology · Computer Hardware

Score

55.6

Rank 297 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%20
Size 25%90
Role 20%65
Recency 10%30
Conviction 10%100

Insider timeline

One insider bought, 18 times, the latest (7 Aug). The share closed at 936.00 that day and at 779.00 most recently (−16.8%).

Chung Kwang HoonChung Kwang HoonChief Executive OfficerCEO / chair2026-04-21 · Chung Kwang Hoon · purchase · 99,050,970 KRW2026-04-22 · Chung Kwang Hoon · purchase · 114,407,715 KRW2026-04-23 · Chung Kwang Hoon · purchase · 12,063,500 KRW2026-04-24 · Chung Kwang Hoon · purchase · 11,257,672 KRW2026-04-27 · Chung Kwang Hoon · purchase · 10,034,199 KRW2026-04-28 · Chung Kwang Hoon · purchase · 31,597,958 KRW2026-04-29 · Chung Kwang Hoon · purchase · 38,520,000 KRW2026-04-30 · Chung Kwang Hoon · purchase · 34,643,700 KRW2026-05-04 · Chung Kwang Hoon · purchase · 9,189,000 KRW2026-05-06 · Chung Kwang Hoon · purchase · 31,051,852 KRW2026-07-24 · Chung Kwang Hoon · purchase · 5,410,181 KRW2026-07-27 · Chung Kwang Hoon · purchase · 14,131,002 KRW2026-07-28 · Chung Kwang Hoon · purchase · 16,689,282 KRW2026-07-29 · Chung Kwang Hoon · purchase · 32,406,704 KRW2026-07-30 · Chung Kwang Hoon · purchase · 37,841,664 KRW2026-07-31 · Chung Kwang Hoon · purchase · 107,126,464 KRW2026-08-03 · Chung Kwang Hoon · purchase · 153,510,048 KRW2026-08-07 · Chung Kwang Hoon · purchase · 8,863,659 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.

Blue line: this share's price, −28.7% over these six months

The closing price of each day, from 1,092.00 on 2026-04-21 to 779.00 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 −28.7%, the typical one −31.9%, 3.2 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
Jan
1Feb
1Mar
1Apr
1May
Jun
1Jul
1Aug
Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
Chung Kwang HoonCEO / chair18—767.8M KRW2026-04-21−28.7%

Insiders' buying price vs the latest close

Insiders paid 966.54 KRW a share on average (37 purchase lines, 1 buyer, 2026-02-20 – 2026-08-07). The close on 2026-10-16 was 19.4% below that price.

The latest purchase (2026-08-07) was at 909.00 KRW; the close was 14.3% 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
2026-08-07Chung Kwang HoonCEOBought on the exchange9,751₩909₩8.9MDART ↗
2026-08-03Chung Kwang HoonCEOBought on the exchange160,912₩954₩153.5MDART ↗
2026-07-31Chung Kwang HoonCEOBought on the exchange115,438₩928₩107.1MDART ↗
2026-07-30Chung Kwang HoonCEOBought on the exchange42,234₩896₩37.8MDART ↗
2026-07-29Chung Kwang HoonCEOBought on the exchange36,784₩881₩32.4MDART ↗
2026-07-28Chung Kwang HoonCEOBought on the exchange19,821₩842₩16.7MDART ↗
2026-07-27Chung Kwang HoonCEOBought on the exchange17,191₩822₩14.1MDART ↗
2026-07-24Chung Kwang HoonCEOBought on the exchange6,671₩811₩5.4MDART ↗
2026-05-06Chung Kwang HoonCEOBought on the exchange30,836₩1,007₩31.1MDART ↗
2026-05-04Chung Kwang HoonCEOBought on the exchange9,000₩1,021₩9.2MDART ↗
2026-04-30Chung Kwang HoonCEOBought on the exchange32,900₩1,053₩34.6MDART ↗
2026-04-29Chung Kwang HoonCEOBought on the exchange36,000₩1,070₩38.5MDART ↗
2026-04-28Chung Kwang HoonCEOBought on the exchange29,894₩1,057₩31.6MDART ↗
2026-04-27Chung Kwang HoonCEOBought on the exchange9,639₩1,041₩10.0MDART ↗
2026-04-24Chung Kwang HoonCEOBought on the exchange10,856₩1,037₩11.3MDART ↗
2026-04-23Chung Kwang HoonCEOBought on the exchange11,500₩1,049₩12.1MDART ↗
2026-04-22Chung Kwang HoonCEOBought on the exchange104,865₩1,091₩114.4MDART ↗
2026-04-21Chung Kwang HoonCEOBought on the exchange92,571₩1,070₩99.1MDART ↗
2026-04-20Chung Kwang HoonCEOBought on the exchange83,204₩1,034₩86.0MDART ↗
2026-03-18Chung Kwang HoonCEOBought on the exchange20,682₩896₩18.5MDART ↗
2026-03-17Chung Kwang HoonCEOBought on the exchange39,405₩912₩35.9MDART ↗
2026-03-16Chung Kwang HoonCEOBought on the exchange22,591₩894₩20.2MDART ↗
2026-03-13Chung Kwang HoonCEOBought on the exchange23,960₩896₩21.5MDART ↗
2026-03-12Chung Kwang HoonCEOBought on the exchange9,556₩905₩8.6MDART ↗
2026-03-11Chung Kwang HoonCEOBought on the exchange18,341₩899₩16.5MDART ↗
2026-03-10Chung Kwang HoonCEOBought on the exchange16,657₩888₩14.8MDART ↗
2026-03-09Chung Kwang HoonCEOBought on the exchange6,422₩866₩5.6MDART ↗
2026-03-06Chung Kwang HoonCEOBought on the exchange12,300₩885₩10.9MDART ↗
2026-03-05Chung Kwang HoonCEOBought on the exchange24,419₩866₩21.1MDART ↗
2026-03-04Chung Kwang HoonCEOBought on the exchange9,085₩845₩7.7MDART ↗
2026-03-03Chung Kwang HoonCEOBought on the exchange5,770₩895₩5.2MDART ↗
2026-02-27Chung Kwang HoonCEOBought on the exchange21,193₩903₩19.1MDART ↗
2026-02-26Chung Kwang HoonCEOBought on the exchange18,676₩894₩16.7MDART ↗
2026-02-25Chung Kwang HoonCEOBought on the exchange6,050₩898₩5.4MDART ↗
2026-02-24Chung Kwang HoonCEOBought on the exchange7,958₩887₩7.1MDART ↗
2026-02-23Chung Kwang HoonCEOBought on the exchange20,000₩895₩17.9MDART ↗
2026-02-20Chung Kwang HoonCEOBought on the exchange16,935₩868₩14.7MDART ↗