StockDriftsStockDriftsMars 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. Across these filings the average return since disclosure is +16.61%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Position | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-06-29 | BUY | Market Buy | 장원규 Jang Won-gyu | Chairman | 10.0K | ₩5,790 | -0.3% | ₩58M ($40K) |
| 2026-06-24 | BUY | Market Buy | 장원규 Jang Won-gyu | Chairman | 10.0K | ₩5,770 | -8.3% | ₩58M ($40K) |
| 2026-06-08 | BUY | Market Buy | 에이치에스테크 HS Tech | - | 3.0K | - | - | - |
| 2026-06-05 | BUY | Market Buy | 에이치에스테크 HS Tech | - | 61.0K | - | - | - |
| 2026-06-04 | BUY | Market Buy | 에이치에스테크 HS Tech | - | 40.0K | - | - | - |
| 2024-12-05 | BUY | 신규주요주주 | 에이치에스테크 HS Tech | - | 40.0K | ₩7,900 | +11.5% | ₩316M ($219K) |
| 2024-12-04 | BUY | 신규보고 | 에이치에스테크 HS Tech | - | 1.0M | ₩7,500 | +17.5% | ₩7.7B ($5.3M) |
| 2024-12-04 | BUY | 신규주요주주 | 에이치에스테크 HS Tech | - | 60.2K | ₩7,500 | +17.5% | ₩452M ($314K) |
| 2024-08-23 | SELL | Market Sell | 장원규 Jang Won-gyu | Chairman | -231.0K | ₩14,110 | +37.6% | ₩3.3B ($2.3M) |
| 2024-08-23 | SELL | Market Sell | 장성필 Seongpil Jang | president | -70.0K | ₩14,110 | +37.6% | ₩988M ($686K) |
Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.