Who has been buying LG C&S stock?

6 distinct insiders have filed 31 disclosed insider purchases in LG C&S (064400), most recently on 2026-06-10. 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 LG C&S have?

LG C&S has 31 buy-side and 4 sell-side disclosures on record, covering ₩305M ($212K) in total reported value, spanning 2025-02-05 to 2026-06-10.

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.

LG C&S 064400

Company

LG씨엔에스LG C&S

Insiders

Buys

Total Value

₩305M ($212K)

Avg Return

+8.19%

Last Filing

2026-06-10

LG C&S (064400) has 31 disclosed insider purchases and 4 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩305M ($212K) in reported transaction value. The earliest filing StockDrifts holds for LG C&S is dated 2025-02-05; the most recent is 2026-06-10. Across these filings the average return since disclosure is +8.19%, 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
2026-06-10	SELL	Market Sell	이재승 Jaeseung Lee	Managing Director	-1.2K	-	-	-
2026-03-31	BUY	Market Buy	현신균 Hyun Shin-gyun	president	2.5K	₩55,800	+19.5%	₩140M ($97K)
2026-03-05	BUY	Market Buy	구연수 Koo Yeon-soo	-	5	-	-	-
2026-03-05	BUY	Market Buy	구연수 Koo Yeon-soo	-	4	-	-	-
2026-03-05	BUY	Market Buy	구연수 Koo Yeon-soo	-	14	-	-	-
2026-03-05	BUY	Market Buy	구연수 Koo Yeon-soo	-	19	-	-	-
2026-03-05	BUY	Market Buy	구연수 Koo Yeon-soo	-	5	-	-	-
2026-03-03	BUY	Market Buy	구연수 Koo Yeon-soo	-	53	-	-	-
2026-03-03	BUY	Market Buy	구연수 Koo Yeon-soo	-	54	-	-	-
2026-03-03	BUY	Market Buy	구연수 Koo Yeon-soo	-	27	-	-	-
2026-03-03	BUY	Market Buy	구연수 Koo Yeon-soo	-	54	-	-	-
2026-03-03	BUY	Market Buy	구연수 Koo Yeon-soo	-	27	-	-	-
2026-03-03	BUY	Market Buy	구연수 Koo Yeon-soo	-	52	-	-	-
2026-02-20	SELL	Market Sell	구연수 Koo Yeon-soo	-	-63	-	-	-
2026-02-20	SELL	Market Sell	구연수 Koo Yeon-soo	-	-64	-	-	-
2026-01-27	BUY	Market Buy	구연수 Koo Yeon-soo	-	67	-	-	-
2026-01-27	BUY	Market Buy	구연수 Koo Yeon-soo	-	3	-	-	-
2026-01-27	BUY	Market Buy	구연수 Koo Yeon-soo	-	3	-	-	-
2026-01-27	BUY	Market Buy	구연수 Koo Yeon-soo	-	3	-	-	-
2026-01-15	BUY	Market Buy	구연수 Koo Yeon-soo	-	3	-	-	-
2026-01-15	BUY	Market Buy	구연수 Koo Yeon-soo	-	1	-	-	-
2026-01-14	BUY	Market Buy	구연수 Koo Yeon-soo	-	50	-	-	-
2026-01-06	BUY	Market Buy	구연수 Koo Yeon-soo	-	13	-	-	-
2026-01-06	BUY	Market Buy	구연수 Koo Yeon-soo	-	1	-	-	-
2026-01-06	BUY	Market Buy	구연수 Koo Yeon-soo	-	14	-	-	-
2026-01-06	BUY	Market Buy	구연수 Koo Yeon-soo	-	14	-	-	-
2026-01-06	BUY	Market Buy	구연수 Koo Yeon-soo	-	6	-	-	-
2026-01-06	BUY	Market Buy	구연수 Koo Yeon-soo	-	6	-	-	-
2026-01-06	BUY	Market Buy	구연수 Koo Yeon-soo	-	5	-	-	-
2025-12-10	BUY	Market Buy	구연수 Koo Yeon-soo	-	413	-	-	-
2025-12-10	BUY	Market Buy	구연수 Koo Yeon-soo	-	104	-	-	-
2025-12-10	BUY	Market Buy	구연수 Koo Yeon-soo	-	58	-	-	-
2025-11-13	BUY	Market Buy	안현정 Hyeonjeong Ahn	Managing Director	344	₩59,000	+21.2%	₩20M ($14K)
2025-11-05	SELL	시간외매매	크리스탈코리아 Crystal Korea	-	-7.4M	₩58,600	-22.0%	₩433.9B ($301.3M)
2025-08-06	SELL	시간외매매	크리스탈코리아 Crystal Korea	-	-5.4M	₩67,500	-5.9%	₩364.5B ($253.1M)
2025-02-20	SELL	Market Sell	김영란 Youngran Kim	Managing Director	-2.3K	₩51,300	-39.4%	₩118M ($82K)
2025-02-17	BUY	신규선임	민세훈 Sehun Min	Managing Director	20	₩53,200	+34.4%	₩1M ($739)
2025-02-11	BUY	Market Buy	김태훈 Taehoon Kim	Managing Director	500	₩54,400	+31.4%	₩27M ($19K)
2025-02-05	BUY	PROGRAM	배민 Baemin	Managing Director	450	₩55,800	+28.1%	₩25M ($17K)
2025-02-05	BUY	PROGRAM	이영미 Youngmi Lee	Managing Director	1.9K	₩55,800	+28.1%	₩106M ($74K)
2025-02-05	BUY	PROGRAM	박상엽 Park Sang-yeop	Managing Director	2.2K	₩55,800	+28.1%	₩121M ($84K)
2025-02-05	BUY	PROGRAM	이준호 Junho Lee	Managing Director	1.7K	₩55,800	+28.1%	₩93M ($64K)
2025-02-05	BUY	PROGRAM	김혜정 Kim Hye-jeong	Managing Director	202	₩55,800	+28.1%	₩11M ($8K)
2025-02-05	BUY	PROGRAM	임재혁 Jaehyuk Lim	Managing Director	1.3K	₩55,800	+28.1%	₩70M ($48K)
2025-02-05	BUY	PROGRAM	전왕근 Jeon Wang-geun	Managing Director	645	₩55,800	+28.1%	₩36M ($25K)
2025-02-05	BUY	PROGRAM	김영란 Youngran Kim	Managing Director	2.3K	₩55,800	+28.1%	₩129M ($89K)
2025-02-05	BUY	PROGRAM	조성우 Jo Seong-woo	Managing Director	980	₩55,800	+28.1%	₩55M ($38K)
2025-02-05	BUY	PROGRAM	이재승 Jaeseung Lee	Managing Director	2.6K	₩55,800	+28.1%	₩146M ($101K)
2025-02-05	BUY	PROGRAM	변하석 Byun Ha-seok	Managing Director	302	₩55,800	+28.1%	₩17M ($12K)
2025-02-05	BUY	PROGRAM	송혜린 Song Hye-rin	Managing Director	1.7K	₩55,800	+28.1%	₩93M ($64K)

Showing the 50 most recent of 65 filings.

Frequently asked questions

Who has been buying LG C&S stock?: 6 distinct insiders have filed 31 disclosed insider purchases in LG C&S (064400), most recently on 2026-06-10. 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 LG C&S have?: LG C&S has 31 buy-side and 4 sell-side disclosures on record, covering ₩305M ($212K) in total reported value, spanning 2025-02-05 to 2026-06-10.
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.