Who has been buying Samyang NCChem stock?

6 distinct insiders have filed 0 disclosed insider purchases in Samyang NCChem (482630), most recently on 2026-06-22. 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 Samyang NCChem have?

Samyang NCChem has 0 buy-side and 23 sell-side disclosures on record, covering ₩7.9B ($5.5M) in total reported value, spanning 2025-02-03 to 2026-06-22.

Where does StockDrifts get Samyang NCChem 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.

Samyang NCChem 482630

Company

삼양엔씨켐Samyang NCChem

Insiders

Buys

Total Value

₩7.9B ($5.5M)

Avg Return

-25.03%

Last Filing

2026-06-22

Samyang NCChem (482630) has 0 disclosed insider purchases and 23 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩7.9B ($5.5M) in reported transaction value. The earliest filing StockDrifts holds for Samyang NCChem is dated 2025-02-03; the most recent is 2026-06-22. 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 -25.03%, 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
2026-06-22	SELL	Market Sell	이상규 Lee Sang-gyu	Managing Director	-2.5K	₩20,550	+16.9%	₩51M ($36K)
2026-06-19	SELL	Market Sell	김기정 Kim Ki-jeong	Managing Director	-2.0K	₩19,420	+12.1%	₩39M ($27K)
2026-05-22	BUY	기타	이상규 Lee Sang-gyu	moving	4.7K	₩22,600	-24.6%	₩107M ($74K)
2026-05-22	SELL	Market Sell	이상규 Lee Sang-gyu	moving	-4.0K	₩22,600	+24.6%	₩90M ($63K)
2026-05-14	SELL	Market Sell	김기정 Kim Ki-jeong	Managing Director	-2.0K	₩20,850	-8.4%	₩42M ($29K)
2026-05-12	SELL	Market Sell	이상규 Lee Sang-gyu	moving	-5.0K	₩21,750	-3.9%	₩109M ($76K)
2026-05-12	BUY	기타	이상규 Lee Sang-gyu	moving	5.0K	₩21,750	+3.9%	₩109M ($76K)
2026-04-28	SELL	Market Sell	김기정 Kim Ki-jeong	Managing Director	-1.4K	₩20,050	+3.6%	₩28M ($19K)
2026-03-26	BUY	기타	이상규 Lee Sang-gyu	Managing Director	2.5K	₩17,050	+16.1%	₩43M ($30K)
2026-03-24	BUY	기타	이상규 Lee Sang-gyu	Managing Director	2.5K	₩16,380	+20.9%	₩41M ($28K)
2026-03-24	BUY	기타	이창호 Changho Lee	Managing Director	5.5K	₩16,380	+20.9%	₩90M ($63K)
2026-03-24	BUY	기타	김기정 Kim Ki-jeong	Managing Director	5.4K	₩16,380	+20.9%	₩88M ($61K)
2026-02-24	SELL	Market Sell	이창호 Changho Lee	Managing Director	-5.5K	-	-	-
2026-02-24	BUY	기타	이창호 Changho Lee	Managing Director	5.5K	-	-	-
2026-02-23	BUY	무상신주취득	전병완 Jeon Byeong-wan	moving	222	-	-	-
2026-02-23	BUY	무상신주취득	신정현 Shin Jeong-hyeon	moving	5.0K	-	-	-
2026-02-23	BUY	무상신주취득	삼양홀딩스 Samyang Holdings	-	6.6M	-	-	-
2026-02-20	SELL	Market Sell	김기정 Kim Ki-jeong	Managing Director	-5.4K	₩22,650	+12.8%	₩122M ($85K)
2026-02-20	BUY	기타	김기정 Kim Ki-jeong	Managing Director	5.4K	₩22,650	-12.8%	₩122M ($85K)
2026-02-19	BUY	기타	김기정 Kim Ki-jeong	Managing Director	100	₩20,350	-2.9%	₩2M ($1K)
2026-02-19	BUY	기타	이상규 Lee Sang-gyu	Managing Director	2.0K	₩20,350	-2.9%	₩41M ($28K)
2026-02-19	SELL	Market Sell	이상규 Lee Sang-gyu	Managing Director	-2.0K	₩20,350	+2.9%	₩41M ($28K)
2026-02-19	SELL	Market Sell	김기정 Kim Ki-jeong	Managing Director	-100	₩20,350	+2.9%	₩2M ($1K)
2026-02-12	BUY	기타	이상규 Lee Sang-gyu	Managing Director	1.1K	₩19,900	-0.7%	₩21M ($15K)
2026-02-12	SELL	Market Sell	이상규 Lee Sang-gyu	Managing Director	-1.1K	₩19,900	+0.7%	₩21M ($15K)
2026-02-06	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-1.0K	₩19,750	-0.1%	₩20M ($14K)
2026-02-06	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-1.0K	₩19,750	-0.1%	₩20M ($14K)
2026-02-06	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-621	₩19,750	-0.1%	₩12M ($9K)
2026-02-06	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-1.0K	₩19,750	-0.1%	₩20M ($14K)
2026-02-06	BUY	기타	신정현 Shin Jeong-hyeon	moving	4.6K	₩19,750	+0.1%	₩91M ($63K)
2026-02-06	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-1.0K	₩19,750	-0.1%	₩20M ($14K)
2026-02-05	BUY	기타	전병완 Jeon Byeong-wan	moving	222	₩18,825	+5.0%	₩4M ($3K)
2026-01-09	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-1.0K	₩13,775	-43.5%	₩14M ($10K)
2026-01-07	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-3.0K	₩13,275	-48.9%	₩40M ($28K)
2025-09-29	SELL	Market Sell	신정현 Shin Jeong-hyeon	moving	-6.0K	₩10,925	-80.9%	₩66M ($46K)
2025-09-22	SELL	Market Sell	전병완 Jeon Byeong-wan	moving	-3.0K	₩10,425	-89.5%	₩31M ($22K)
2025-09-16	SELL	Market Sell	전병완 Jeon Byeong-wan	moving	-3.0K	₩9,940	-98.8%	₩30M ($21K)
2025-09-12	SELL	Market Sell	전병완 Jeon Byeong-wan	moving	-3.0K	₩9,250	-113.6%	₩28M ($19K)
2025-07-17	BUY	주식매수청구권 행사	전병완 Jeon Byeong-wan	moving	9.0K	₩8,775	+125.2%	₩79M ($55K)
2025-07-17	BUY	주식매수청구권 행사	신정현 Shin Jeong-hyeon	moving	15.0K	₩8,775	+125.2%	₩132M ($91K)
2025-02-05	SELL	Market Sell	넥서스홀딩스 Nexus Holdings	-	-856.1K	₩8,255	-139.4%	₩7.1B ($4.9M)
2025-02-03	BUY	신규상장	삼양홀딩스 Samyang Holdings	-	6.6M	₩8,980	+120.0%	₩58.9B ($40.9M)
2025-02-03	BUY	신규상장	넥서스홀딩스 Nexus Holdings	-	1.7M	₩8,980	+120.0%	₩15.4B ($10.7M)

Frequently asked questions

Who has been buying Samyang NCChem stock?: 6 distinct insiders have filed 0 disclosed insider purchases in Samyang NCChem (482630), most recently on 2026-06-22. 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 Samyang NCChem have?: Samyang NCChem has 0 buy-side and 23 sell-side disclosures on record, covering ₩7.9B ($5.5M) in total reported value, spanning 2025-02-03 to 2026-06-22.
Where does StockDrifts get Samyang NCChem 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 Samyang NCChem. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.