Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

ALT Co.,Ltd.

에이엘티 · 172670 · KOSDAQ · Technology · Semiconductors

Score

59.0

Rank 245 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%40
Size 25%69
Role 20%65
Recency 10%47
Conviction 10%100

Insider timeline

2 insiders bought within 14 days, 17 Jun to 30 Jun: 1 Executive, 1 CEO / chair. 1 of them bought again later. The share closed at 13,020.00 on the first of those days and at 12,670.00 most recently (−2.7%).

Several insiders within 15 days: 2026-06-17 – 2026-06-30LEE EUN CHEOLLEE EUN CHEOLMember of the executive committeeExecutiveCHUN BYUNG TAECHUN BYUNG TAEChief Executive OfficerCEO / chair2026-06-15 · LEE EUN CHEOL · purchase · 32,787,500 KRW2026-06-16 · LEE EUN CHEOL · purchase · 5,160,000 KRW2026-06-17 · LEE EUN CHEOL · purchase · 1,293,000 KRW2026-06-30 · CHUN BYUNG TAE · purchase · 99,890,809 KRW2026-09-03 · CHUN BYUNG TAE · purchase · 99,837,549 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 17 Jun – 30 Jun, 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, +3.3% over these six months

The closing price of each day, from 12,260.00 on 2026-04-21 to 12,670.00 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 +3.3%, the typical one −31.9%, 35.2 points ahead. It is not an index and not a comparison within one industry.

This company: insiders buying per month, last 12 months

Nov
8Dec
Jan
Feb
Mar
Apr
May
2Jun
Jul
Aug
1Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
LEE EUN CHEOLExecutive3—39.2M KRW2026-06-15−2.0%
CHUN BYUNG TAECEO / chair2—199.7M KRW2026-06-30+22.4%

Insiders' buying price vs the latest close

Insiders paid 10,414.50 KRW a share on average (13 purchase lines, 8 buyers, 2025-12-17 – 2026-09-03). The close on 2026-10-16 was 21.7% above that price.

The latest purchase (2026-09-03) was at 10,143.00 KRW; the close was 24.9% above 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
2026-09-03CHUN BYUNG TAECEOBought on the exchange9,843₩10,143₩99.8MDART ↗
2026-06-30CHUN BYUNG TAECEOBought on the exchange9,899₩10,091₩99.9MDART ↗
2026-06-17LEE EUN CHEOLPresidentBought on the exchange100₩12,930₩1.3MDART ↗
2026-06-16LEE EUN CHEOLPresidentBought on the exchange400₩12,900₩5.2MDART ↗
2026-06-15LEE EUN CHEOLPresidentBought on the exchange2,500₩13,115₩32.8MDART ↗
2025-12-17JEONG KI CHUNDirectorBought on the exchange965₩10,340₩10.0MDART ↗
2025-12-17JEON JAE KUKSenior managing directorBought on the exchange971₩10,400₩10.1MDART ↗
2025-12-17LEE EUN CHEOLPresidentBought on the exchange3,000₩9,878₩29.6MDART ↗
2025-12-17LEE TAE HEEDirectorBought on the exchange930₩10,450₩9.7MDART ↗
2025-12-17YOU HYUN SUDirectorBought on the exchange967₩10,340₩10.0MDART ↗
2025-12-17YOUN YONG MOManaging directorBought on the exchange1,029₩10,018₩10.3MDART ↗
2025-12-17CHUN SUNG MINDirectorBought on the exchange2,000₩10,389₩20.8MDART ↗
2025-12-17CHUN BYUNG TAECEOBought on the exchange4,902₩10,429₩51.1MDART ↗
Other changes in holdings · 1

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

DateInsiderRoleReasonSharesFiling
2026-10-07CHUN SUNG MINManaging directorReceipt of donation(+)210,000DART ↗