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Sammok S Form 018310

Company
삼목에스폼Sammok S Form
Insiders
2
Buys
2
Total Value
₩188M ($131K)
Avg Return
+2.99%
Last Filing
2026-06-30

Sammok S Form (018310) has 2 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩188M ($131K) in reported transaction value. The earliest filing StockDrifts holds for Sammok S Form is dated 2024-08-22; the most recent is 2026-06-30. 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 +2.99%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-06-30BUYMarket Buy
박규혁
Park Gyu-hyuk
Managing Director10.0K₩14,230+7.2%₩142M ($99K)
2026-06-10BUY공개매수
에스폼
Sform
-1.2M₩15,210-5.7%₩18.3B ($12.7M)
2025-10-01BUY공개매수
에스폼
Sform
-54.3K₩22,050-6.3%₩1.2B ($831K)
2025-01-20BUY신규선임
문승주
Seungju Moon
Managing Director1.4K₩20,350+1.5%₩29M ($20K)
2025-01-20BUY신규선임
이제현
Lee Je-hyeon
Managing Director2.1K₩20,350+1.5%₩43M ($30K)
2024-12-24SELL시간외매매
에스폼
Sform
--441.0K₩21,750+5.1%₩9.6B ($6.7M)
2024-12-24BUYPROGRAM
김재년
Kim Jae-nyeon
vice president2.8K₩21,750-5.1%₩61M ($42K)
2024-12-24BUYPROGRAM
강정기
Kang Jeong-gi
Managing Director2.5K₩21,750-5.1%₩54M ($38K)
2024-12-24BUYPROGRAM
박찬규
Park Chan-gyu
Managing Director2.0K₩21,750-5.1%₩44M ($31K)
2024-12-24BUYPROGRAM
엄석호
Eom Seok-ho
CEO5.8K₩21,750-5.1%₩127M ($88K)
2024-12-24BUYPROGRAM
김정은
Kim Jong-un
-441.0K₩21,750-5.1%₩9.6B ($6.7M)
2024-12-24BUYPROGRAM
이세훈
Sehun Lee
Managing Director2.1K₩21,750-5.1%₩46M ($32K)
2024-12-24BUYPROGRAM
박만수
Mansu Park
Managing Director1.8K₩21,750-5.1%₩38M ($27K)
2024-12-24BUYPROGRAM
임범수
Beomsu Lim
vice president1.4K₩21,750-5.1%₩31M ($21K)
2024-12-24BUYPROGRAM
박규혁
Park Gyu-hyuk
Managing Director2.1K₩21,750-5.1%₩46M ($32K)
2024-12-11BUYMarket Buy
김태호
Kim Tae-ho
Outside Director2.2K₩20,900-1.2%₩46M ($32K)
2024-08-22BUY시간외매매
엄석호
Eom Seok-ho
CEO40.6K₩20,550+0.5%₩834M ($579K)

Frequently asked questions

Who has been buying Sammok S Form stock?
2 distinct insiders have filed 2 disclosed insider purchases in Sammok S Form (018310), most recently on 2026-06-30. 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 Sammok S Form have?
Sammok S Form has 2 buy-side and 0 sell-side disclosures on record, covering ₩188M ($131K) in total reported value, spanning 2024-08-22 to 2026-06-30.
Where does StockDrifts get Sammok S Form 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 Sammok S Form. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.