Who has been buying Samhyun stock?

20 distinct insiders have filed 52 disclosed insider purchases in Samhyun (437730), most recently on 2026-06-25. 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 Samhyun have?

Samhyun has 52 buy-side and 47 sell-side disclosures on record, covering ₩10.1B ($7.0M) in total reported value, spanning 2024-03-21 to 2026-06-25.

Where does StockDrifts get Samhyun 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.

Samhyun 437730

Company

삼현Samhyun

Insiders

Buys

Total Value

₩10.1B ($7.0M)

Avg Return

-52.87%

Last Filing

2026-06-25

Samhyun (437730) has 52 disclosed insider purchases and 47 disclosed disposals on record, filed by 20 distinct insiders. Together those filings cover ₩10.1B ($7.0M) in reported transaction value. The earliest filing StockDrifts holds for Samhyun is dated 2024-03-21; the most recent is 2026-06-25. 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 -52.87%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2026-06-25	BUY	Market Buy	황성호 Seongho Hwang	CEO	1.0K	₩35,150	-7.4%	₩35M ($24K)
2026-06-25	BUY	Market Buy	황성호 Seongho Hwang	CEO	1.0K	₩35,150	-7.4%	₩35M ($24K)
2026-06-25	BUY	Market Buy	김창곤 Kim Chang-gon	vice president	200	₩35,150	-7.4%	₩7M ($5K)
2026-06-23	BUY	Market Buy	서재복 Seo Jae-bok	vice president	1.0K	₩38,150	-14.7%	₩38M ($26K)
2026-03-12	BUY	Market Buy	최태극 Choi Tae-geuk	Managing Director	480	₩51,900	-4.0%	₩25M ($17K)
2026-03-11	BUY	Market Buy	박민철 Park Min-cheol	Managing Director	53	₩51,700	-3.7%	₩3M ($2K)
2026-03-10	BUY	Market Buy	허진 Heo Jin	Managing Director	29	₩52,600	-5.3%	₩2M ($1K)
2026-03-10	BUY	Market Buy	박민철 Park Min-cheol	Managing Director	5	₩52,600	-5.3%	₩263K ($183)
2026-03-10	BUY	Market Buy	강덕림 Kang Deok-rim	Managing Director	50	₩52,600	-5.3%	₩3M ($2K)
2026-03-10	BUY	Market Buy	최태극 Choi Tae-geuk	Managing Director	226	₩52,600	-5.3%	₩12M ($8K)
2026-03-09	BUY	Market Buy	허진 Heo Jin	Managing Director	150	₩52,100	-4.4%	₩8M ($5K)
2026-03-09	BUY	Market Buy	박기원 Park Ki-won	president	6.4K	₩52,100	-4.4%	₩333M ($231K)
2026-03-09	SELL	Market Sell	최거승 Geoseung Choi	Managing Director	-2.2K	₩52,100	+4.4%	₩117M ($81K)
2026-03-06	BUY	Market Buy	이재국 Jaeguk Lee	Managing Director	1.0K	₩56,300	-11.6%	₩56M ($39K)
2026-03-06	BUY	Market Buy	박기원 Park Ki-won	president	4.6K	₩56,300	-11.6%	₩259M ($180K)
2026-03-06	BUY	Market Buy	박민철 Park Min-cheol	Managing Director	122	₩56,300	-11.6%	₩7M ($5K)
2026-03-06	BUY	Market Buy	김태형 Taehyung Kim	vice president	700	₩56,300	-11.6%	₩39M ($27K)
2026-03-06	BUY	Market Buy	강덕림 Kang Deok-rim	Managing Director	50	₩56,300	-11.6%	₩3M ($2K)
2026-03-06	BUY	Market Buy	허진 Heo Jin	Managing Director	150	₩56,300	-11.6%	₩8M ($6K)
2026-03-06	BUY	Market Buy	김태형 Taehyung Kim	vice president	300	₩56,300	-11.6%	₩17M ($12K)
2026-03-06	BUY	Market Buy	한병철 Byung-cheol Han	Managing Director	100	₩56,300	-11.6%	₩6M ($4K)
2026-03-06	BUY	Market Buy	이재국 Jaeguk Lee	Managing Director	200	₩56,300	-11.6%	₩11M ($8K)
2026-03-05	BUY	Market Buy	허진 Heo Jin	Managing Director	425	₩49,550	+0.5%	₩21M ($15K)
2026-03-05	BUY	Market Buy	서재복 Seo Jae-bok	vice president	500	₩49,550	+0.5%	₩25M ($17K)
2026-03-05	BUY	Market Buy	서재복 Seo Jae-bok	vice president	500	₩49,550	+0.5%	₩25M ($17K)
2026-03-05	BUY	Market Buy	허만규 Heo Man-gyu	Managing Director	100	₩49,550	+0.5%	₩5M ($3K)
2026-03-05	BUY	Market Buy	원준구 Won Jun-gu	Managing Director	50	₩49,550	+0.5%	₩2M ($2K)
2026-03-05	BUY	Market Buy	원준구 Won Jun-gu	Managing Director	50	₩49,550	+0.5%	₩2M ($2K)
2026-03-05	BUY	Market Buy	원준구 Won Jun-gu	Managing Director	50	₩49,550	+0.5%	₩2M ($2K)
2026-03-05	BUY	Market Buy	한병철 Byung-cheol Han	Managing Director	99	₩49,550	+0.5%	₩5M ($3K)
2026-03-05	BUY	Market Buy	김창곤 Kim Chang-gon	vice president	177	₩49,550	+0.5%	₩9M ($6K)
2026-03-05	BUY	Market Buy	원준구 Won Jun-gu	Managing Director	50	₩49,550	+0.5%	₩2M ($2K)
2026-03-05	BUY	Market Buy	박민철 Park Min-cheol	Managing Director	125	₩49,550	+0.5%	₩6M ($4K)
2026-03-04	SELL	Market Sell	이일남 Lee Il-nam	Managing Director	-3.0K	₩42,800	-16.4%	₩128M ($89K)
2026-03-04	SELL	Market Sell	이일남 Lee Il-nam	Managing Director	-900	₩42,800	-16.4%	₩39M ($27K)
2026-02-24	SELL	시간외매매	황희종 Hwang Hee-jong	-	-614.4K	₩53,100	+6.2%	₩32.6B ($22.7M)
2026-02-24	SELL	시간외매매	황승종 Seungjong Hwang	Managing Director	-241.3K	₩53,100	+6.2%	₩12.8B ($8.9M)
2026-02-24	SELL	시간외매매	황성호 Seongho Hwang	CEO	-446.1K	₩53,100	+6.2%	₩23.7B ($16.5M)
2026-02-24	SELL	시간외매매	박기순 Park Ki-soon	-	-446.1K	₩53,100	+6.2%	₩23.7B ($16.5M)
2026-01-27	BUY	Market Buy	최거승 Geoseung Choi	Managing Director	555	₩64,500	-22.8%	₩36M ($25K)
2026-01-05	BUY	Market Buy	황성호 Seongho Hwang	CEO	1.8K	₩57,500	-13.4%	₩104M ($72K)
2025-12-30	SELL	Market Sell	황승종 Seungjong Hwang	Managing Director	-10.1K	₩55,200	+9.8%	₩559M ($388K)
2025-12-30	SELL	Market Sell	황희종 Hwang Hee-jong	-	-57.8K	₩55,200	+9.8%	₩3.2B ($2.2M)
2025-12-29	SELL	Market Sell	황희종 Hwang Hee-jong	-	-31.0K	₩59,300	+16.0%	₩1.8B ($1.3M)
2025-12-29	SELL	Market Sell	황승종 Seungjong Hwang	Managing Director	-25.3K	₩59,300	+16.0%	₩1.5B ($1.0M)
2025-11-28	BUY	Market Buy	최거승 Geoseung Choi	Managing Director	1.7K	₩40,300	+23.6%	₩68M ($47K)
2025-09-19	BUY	Market Buy	원준구 Won Jun-gu	Managing Director	500	₩22,250	+123.8%	₩11M ($8K)
2025-09-15	SELL	Market Sell	박민철 Park Min-cheol	Managing Director	-3.0K	₩20,600	-141.8%	₩62M ($43K)
2025-09-12	SELL	Market Sell	한병철 Byung-cheol Han	Managing Director	-250	₩20,600	-141.8%	₩5M ($4K)
2025-09-12	SELL	Market Sell	서재복 Seo Jae-bok	vice president	-5.0K	₩20,600	-141.8%	₩103M ($72K)

Showing the 50 most recent of 142 filings.

Frequently asked questions

Who has been buying Samhyun stock?: 20 distinct insiders have filed 52 disclosed insider purchases in Samhyun (437730), most recently on 2026-06-25. 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 Samhyun have?: Samhyun has 52 buy-side and 47 sell-side disclosures on record, covering ₩10.1B ($7.0M) in total reported value, spanning 2024-03-21 to 2026-06-25.
Where does StockDrifts get Samhyun 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 Samhyun. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.