Who has been buying LK Chem stock?

2 distinct insiders have filed 0 disclosed insider purchases in LK Chem (489500), most recently on 2026-05-19. 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 LK Chem have?

LK Chem has 0 buy-side and 5 sell-side disclosures on record, covering ₩26.5B ($18.4M) in total reported value, spanning 2025-02-25 to 2026-05-19.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

LK Chem 489500

Company

엘케이켐LK Chem

Insiders

Buys

Total Value

₩26.5B ($18.4M)

Avg Return

-3.04%

Last Filing

2026-05-19

LK Chem (489500) has 0 disclosed insider purchases and 5 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩26.5B ($18.4M) in reported transaction value. The earliest filing StockDrifts holds for LK Chem is dated 2025-02-25; the most recent is 2026-05-19. Across these filings the average return since disclosure is -3.04%, 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
2026-05-19	SELL	Market Sell	성차근 Seongchageun	Managing Director	-4.0K	₩30,100	-20.4%	₩120M ($84K)
2026-04-22	BUY	주식매수선택권	고승환 Seunghwan Go	Managing Director	8.2K	₩33,550	+1.2%	₩275M ($191K)
2026-04-22	BUY	주식매수선택권	김성민 Seongmin Kim	Managing Director	5.3K	₩33,550	+1.2%	₩179M ($124K)
2026-04-22	BUY	주식매수선택권	성차근 Seongchageun	Managing Director	8.2K	₩33,550	+1.2%	₩275M ($191K)
2026-04-22	BUY	주식매수선택권	권철희 Cheolhee Kwon	vice president	6.2K	₩33,550	+1.2%	₩207M ($144K)
2025-03-25	SELL	Market Sell	에스지아이 세미콘 첨단소재 투자조합 SGI Semicon Advanced Materials Investment Association	-	-627.8K	₩30,200	-33.0%	₩19.0B ($13.2M)
2025-02-27	SELL	Market Sell	에스지아이 세미콘 첨단소재 투자조합 SGI Semicon Advanced Materials Investment Association	-	-37.7K	₩39,500	-1.6%	₩1.5B ($1.0M)
2025-02-26	SELL	Market Sell	에스지아이 세미콘 첨단소재 투자조합 SGI Semicon Advanced Materials Investment Association	-	-40.0K	₩43,700	+8.1%	₩1.7B ($1.2M)
2025-02-25	SELL	Market Sell	에스지아이 세미콘 첨단소재 투자조합 SGI Semicon Advanced Materials Investment Association	-	-72.0K	₩58,800	+31.7%	₩4.2B ($2.9M)
2025-02-25	BUY	신규상장	이창엽 Lee Chang-yeop	CEO	3.6M	₩58,800	-31.7%	₩209.1B ($145.2M)
2025-02-25	BUY	신규상장	에스지아이 세미콘 첨단소재 투자조합 SGI Semicon Advanced Materials Investment Association	-	1.1M	₩58,800	-31.7%	₩65.7B ($45.6M)

Frequently asked questions

Who has been buying LK Chem stock?: 2 distinct insiders have filed 0 disclosed insider purchases in LK Chem (489500), most recently on 2026-05-19. 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 LK Chem have?: LK Chem has 0 buy-side and 5 sell-side disclosures on record, covering ₩26.5B ($18.4M) in total reported value, spanning 2025-02-25 to 2026-05-19.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

More on this data

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.