Who has been buying Schem stock?

7 distinct insiders have filed 92 disclosed insider purchases in Schem (475660), 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 Schem have?

Schem has 92 buy-side and 8 sell-side disclosures on record, covering ₩307M ($213K) in total reported value, spanning 2024-11-18 to 2026-06-25.

Where does StockDrifts get Schem 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.

Schem 475660

Company

에스켐Schem

Insiders

Buys

Total Value

₩307M ($213K)

Avg Return

-2.61%

Last Filing

2026-06-25

Schem (475660) has 92 disclosed insider purchases and 8 disclosed disposals on record, filed by 7 distinct insiders. Together those filings cover ₩307M ($213K) in reported transaction value. The earliest filing StockDrifts holds for Schem is dated 2024-11-18; 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 -2.61%, 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	채미영 Chae Mi-young	Outside Director	50	₩3,415	+15.7%	₩171K ($119)
2026-06-24	BUY	Market Buy	박진균 Park Jin-gyun	Outside Director	1.0K	₩3,325	+18.8%	₩3M ($2K)
2026-06-24	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩3,325	+18.8%	₩333K ($231)
2026-06-24	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	1.0K	₩3,325	+18.8%	₩3M ($2K)
2026-06-23	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	1.0K	₩3,455	+14.3%	₩3M ($2K)
2026-06-23	BUY	Market Buy	박진균 Park Jin-gyun	Outside Director	1.0K	₩3,455	+14.3%	₩3M ($2K)
2026-06-23	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩3,455	+14.3%	₩346K ($240)
2026-06-18	BUY	기타	서동근 Seo Dong-geun	Managing Director	2.9K	₩3,740	-5.6%	₩11M ($7K)
2026-06-15	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	2	₩3,940	+0.3%	₩8K ($5)
2026-06-15	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	98	₩3,940	+0.3%	₩386K ($268)
2026-06-12	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	1.0K	₩3,895	-6.3%	₩4M ($3K)
2026-06-12	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩3,895	+1.4%	₩390K ($270)
2026-06-11	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩4,160	-5.0%	₩416K ($289)
2026-06-10	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩3,995	-1.1%	₩400K ($277)
2026-06-05	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩4,435	-10.9%	₩444K ($308)
2026-06-04	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	23	₩4,540	-13.0%	₩104K ($73)
2026-06-04	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	495	₩4,540	-13.0%	₩2M ($2K)
2026-06-04	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	461	₩4,540	-13.0%	₩2M ($1K)
2026-06-04	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	16	₩4,540	-13.0%	₩73K ($50)
2026-06-04	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	5	₩4,540	-13.0%	₩23K ($16)
2026-06-02	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩4,200	-6.0%	₩420K ($292)
2026-06-02	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	200	₩4,200	-6.0%	₩840K ($583)
2026-05-29	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	50	₩4,240	-6.8%	₩212K ($147)
2026-05-29	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	50	₩4,240	-6.8%	₩212K ($147)
2026-05-29	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	203	₩4,240	-7.1%	₩861K ($598)
2026-05-29	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩4,240	-6.8%	₩424K ($294)
2026-05-28	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	797	₩4,150	-5.1%	₩3M ($2K)
2026-05-28	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	50	₩4,150	-4.8%	₩208K ($144)
2026-05-22	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	50	₩4,580	-13.8%	₩229K ($159)
2026-05-22	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	500	₩4,580	-9.4%	₩2M ($2K)
2026-05-20	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	1.0K	₩4,530	-8.4%	₩5M ($3K)
2026-05-20	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩4,530	-12.8%	₩453K ($315)
2026-05-13	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	100	₩4,900	-19.4%	₩490K ($340)
2026-05-13	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	4	₩4,900	-19.4%	₩20K ($14)
2026-05-13	BUY	Market Buy	채미영 Chae Mi-young	Outside Director	196	₩4,900	-19.4%	₩960K ($667)
2026-05-13	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	1.0K	₩4,900	-1.8%	₩5M ($3K)
2026-05-07	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	500	₩5,140	-6.4%	₩3M ($2K)
2026-04-08	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	500	₩5,260	-8.6%	₩3M ($2K)
2026-03-25	BUY	Market Buy	박진균 Park Jin-gyun	Outside Director	1.0K	₩5,420	-2.0%	₩5M ($4K)
2026-03-19	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	500	₩5,430	-2.2%	₩3M ($2K)
2026-03-18	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	600	₩6,000	-11.5%	₩4M ($3K)
2026-01-26	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	453	₩5,060	+4.9%	₩2M ($2K)
2026-01-23	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	47	₩5,160	+2.9%	₩243K ($168)
2025-11-05	BUY	Market Buy	이대원 Daewon Lee	Executive Director (Vice President)	900	₩5,840	-9.1%	₩5M ($4K)
2025-10-23	BUY	Market Buy	시상만 Awards only	Managing Director	1.0K	₩6,650	-20.1%	₩7M ($5K)
2025-09-18	BUY	Market Buy	염호영 Yeom Hoyoung	CEO	1.1K	₩7,840	-32.3%	₩8M ($6K)
2025-09-15	SELL	Market Sell	이대원 Daewon Lee	Executive Director (Vice President)	-1.6K	₩7,720	+31.2%	₩12M ($9K)
2025-09-12	BUY	Market Buy	최각규 Choi Gak-gyu	moving	612	₩7,290	-27.2%	₩4M ($3K)
2025-08-20	SELL	Market Sell	박진균 Park Jin-gyun	Outside Director	-225	₩5,360	+0.9%	₩1M ($838)
2025-08-20	BUY	Market Buy	박진균 Park Jin-gyun	Outside Director	1.8K	₩5,360	-0.9%	₩10M ($7K)

Showing the 50 most recent of 115 filings.

Frequently asked questions

Who has been buying Schem stock?: 7 distinct insiders have filed 92 disclosed insider purchases in Schem (475660), 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 Schem have?: Schem has 92 buy-side and 8 sell-side disclosures on record, covering ₩307M ($213K) in total reported value, spanning 2024-11-18 to 2026-06-25.
Where does StockDrifts get Schem 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 Schem. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.