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Mars valve 039610

Company
화성밸브Mars valve
Insiders
3
Buys
5
Total Value
₩4.4B ($3.0M)
Avg Return
+16.61%
Last Filing
2026-06-29

Mars valve (039610) has 5 disclosed insider purchases and 2 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩4.4B ($3.0M) in reported transaction value. The earliest filing StockDrifts holds for Mars valve is dated 2024-08-23; the most recent is 2026-06-29. 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 +16.61%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-06-29BUYMarket Buy
장원규
Jang Won-gyu
Chairman10.0K₩5,790-0.3%₩58M ($40K)
2026-06-24BUYMarket Buy
장원규
Jang Won-gyu
Chairman10.0K₩5,770-8.3%₩58M ($40K)
2026-06-08BUYMarket Buy
에이치에스테크
HS Tech
-3.0K---
2026-06-05BUYMarket Buy
에이치에스테크
HS Tech
-61.0K---
2026-06-04BUYMarket Buy
에이치에스테크
HS Tech
-40.0K---
2024-12-05BUY신규주요주주
에이치에스테크
HS Tech
-40.0K₩7,900+11.5%₩316M ($219K)
2024-12-04BUY신규보고
에이치에스테크
HS Tech
-1.0M₩7,500+17.5%₩7.7B ($5.3M)
2024-12-04BUY신규주요주주
에이치에스테크
HS Tech
-60.2K₩7,500+17.5%₩452M ($314K)
2024-08-23SELLMarket Sell
장원규
Jang Won-gyu
Chairman-231.0K₩14,110+37.6%₩3.3B ($2.3M)
2024-08-23SELLMarket Sell
장성필
Seongpil Jang
president-70.0K₩14,110+37.6%₩988M ($686K)

Frequently asked questions

Who has been buying Mars valve stock?
3 distinct insiders have filed 5 disclosed insider purchases in Mars valve (039610), most recently on 2026-06-29. 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 Mars valve have?
Mars valve has 5 buy-side and 2 sell-side disclosures on record, covering ₩4.4B ($3.0M) in total reported value, spanning 2024-08-23 to 2026-06-29.
Where does StockDrifts get Mars valve 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 Mars valve. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.