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Samyoung M-Tech 054540

Company
삼영엠텍Samyoung M-Tech
Insiders
2
Buys
6
Total Value
₩1.6B ($1.1M)
Avg Return
+107.54%
Last Filing
2025-04-16

Samyoung M-Tech (054540) has 6 disclosed insider purchases and 2 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩1.6B ($1.1M) in reported transaction value. The earliest filing StockDrifts holds for Samyoung M-Tech is dated 2024-03-28; the most recent is 2025-04-16. All of it is parsed from DART D001/D002 insider disclosures, the official disclosure system operated by the Financial Supervisory Service (Korea). Across these filings the average return since disclosure is +107.54%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2025-04-16BUYMarket Buy
전창옥
Jeon Chang-ok
CEO25.0K₩5,120+189.4%₩128M ($89K)
2025-04-15BUYMarket Buy
전창옥
Jeon Chang-ok
CEO25.0K₩5,180+186.1%₩130M ($90K)
2025-04-14BUYMarket Buy
전창옥
Jeon Chang-ok
CEO11.0K₩5,110+190.0%₩56M ($39K)
2025-04-11BUYMarket Buy
전창옥
Jeon Chang-ok
CEO19.0K₩4,975+197.9%₩95M ($66K)
2025-04-10BUYMarket Buy
전창옥
Jeon Chang-ok
CEO10.0K₩4,695+215.7%₩47M ($33K)
2025-04-09BUYMarket Buy
전창옥
Jeon Chang-ok
CEO10.0K₩4,400+236.8%₩44M ($31K)
2024-12-16SELL임원퇴임
강문식
Kang Moon-sik
Chairman-484.7K₩4,170-255.4%₩2.0B ($1.4M)
2024-08-14SELLMarket Sell
강문식
Kang Moon-sik
Chairman-100.0K₩5,340-177.5%₩534M ($371K)
2024-08-13SELLMarket Sell
강문식
Kang Moon-sik
Chairman-100.0K₩5,330-178.1%₩533M ($370K)
2024-03-28BUY신규선임
김완우
Wanwoo Kim
moving7.6K₩3,990+271.4%₩30M ($21K)

Frequently asked questions

Who has been buying Samyoung M-Tech stock?
2 distinct insiders have filed 6 disclosed insider purchases in Samyoung M-Tech (054540), most recently on 2025-04-16. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does Samyoung M-Tech have?
Samyoung M-Tech has 6 buy-side and 2 sell-side disclosures on record, covering ₩1.6B ($1.1M) in total reported value, spanning 2024-03-28 to 2025-04-16.
Where does StockDrifts get Samyoung M-Tech insider data?
From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.
Do insider buys in Korean stocks predict returns?
Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Source filings

Every trade listed above is disclosed in DART D001/D002 insider disclosures, filed with the Financial Supervisory Service (Korea). View the original DART filings for Samyoung M-Tech. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.