Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

SEOYON TOPMETAL CO., LTD.

서연탑메탈 · 019770 · KOSDAQ · Consumer Cyclical · Auto Parts

Score

59.2

Rank 238 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%40
Size 25%85
Role 20%65
Recency 10%10
Conviction 10%100

Insider timeline

2 insiders bought within 7 days, 27 May to 2 Jun: 1 CEO / chair, 1 Executive. The share closed at 3,675.00 on the first of those days and at 3,415.00 most recently (−7.1%).

Several insiders within 15 days: 2026-05-27 – 2026-06-02RAU KYUNG NAIRAU KYUNG NAIMember of the executive committeeExecutiveCHOI WON JAICHOI WON JAIChief Executive OfficerCEO / chair2026-05-20 · RAU KYUNG NAI · purchase · 7,320,000 KRW2026-05-26 · RAU KYUNG NAI · purchase · 34,401,870 KRW2026-05-27 · CHOI WON JAI · purchase · 32,233,445 KRW2026-05-27 · RAU KYUNG NAI · purchase · 50,440,776 KRW2026-05-28 · CHOI WON JAI · purchase · 87,441,424 KRW2026-05-29 · CHOI WON JAI · purchase · 117,605,280 KRW2026-06-01 · CHOI WON JAI · purchase · 172,310,090 KRW2026-06-02 · CHOI WON JAI · purchase · 14,240,000 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 27 May – 2 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, −18.4% over these six months

The closing price of each day, from 4,185.00 on 2026-04-21 to 3,415.00 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 −18.4%, the typical one −31.9%, 13.5 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
Feb
Mar
Apr
2May
1Jun
Jul
Aug
Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
RAU KYUNG NAIExecutive3—92.2M KRW2026-05-20−6.8%
CHOI WON JAICEO / chair5—423.8M KRW2026-05-27−7.1%

Insiders' buying price vs the latest close

Insiders paid 3,732.94 KRW a share on average (15 purchase lines, 2 buyers, 2025-10-23 – 2026-06-02). The close on 2026-10-16 was 8.5% below that price.

The latest purchase (2026-06-02) was at 3,560.00 KRW; the close was 4.1% 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
2026-06-02CHOI WON JAIVice chairmanBought on the exchange4,000₩3,560₩14.2MDART ↗
2026-06-01CHOI WON JAIVice chairmanBought on the exchange47,105₩3,658₩172.3MDART ↗
2026-05-29CHOI WON JAIVice chairmanBought on the exchange32,080₩3,666₩117.6MDART ↗
2026-05-28CHOI WON JAIVice chairmanBought on the exchange23,996₩3,644₩87.4MDART ↗
2026-05-27CHOI WON JAIVice chairmanBought on the exchange8,819₩3,655₩32.2MDART ↗
2026-05-27RAU KYUNG NAIPresidentBought on the exchange13,677₩3,688₩50.4MDART ↗
2026-05-26RAU KYUNG NAIPresidentBought on the exchange9,323₩3,690₩34.4MDART ↗
2026-05-20RAU KYUNG NAIPresidentBought on the exchange2,000₩3,660₩7.3MDART ↗
2025-10-31CHOI WON JAIVice chairmanBought on the exchange5,244₩3,821₩20.0MDART ↗
2025-10-30CHOI WON JAIVice chairmanBought on the exchange12,989₩3,815₩49.6MDART ↗
2025-10-29CHOI WON JAIVice chairmanBought on the exchange12,955₩3,825₩49.6MDART ↗
2025-10-28CHOI WON JAIVice chairmanBought on the exchange12,702₩3,837₩48.7MDART ↗
2025-10-27CHOI WON JAIVice chairmanBought on the exchange15,584₩3,816₩59.5MDART ↗
2025-10-24CHOI WON JAIVice chairmanBought on the exchange29,941₩3,824₩114.5MDART ↗
2025-10-23CHOI WON JAIVice chairmanBought on the exchange26,585₩3,819₩101.5MDART ↗