Who has been buying JS Corporation stock?

7 distinct insiders have filed 0 disclosed insider purchases in JS Corporation (194370), most recently on 2026-03-26. 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 JS Corporation have?

JS Corporation has 0 buy-side and 9 sell-side disclosures on record, covering ₩2.3B ($1.6M) in total reported value, spanning 2025-01-07 to 2026-03-26.

Where does StockDrifts get JS Corporation 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.

JS Corporation 194370

Company

제이에스코퍼레이션JS Corporation

Insiders

Buys

Total Value

₩2.3B ($1.6M)

Avg Return

-6.38%

Last Filing

2026-03-26

JS Corporation (194370) has 0 disclosed insider purchases and 9 disclosed disposals on record, filed by 7 distinct insiders. Together those filings cover ₩2.3B ($1.6M) in reported transaction value. The earliest filing StockDrifts holds for JS Corporation is dated 2025-01-07; the most recent is 2026-03-26. 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 -6.38%, 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
2026-03-26	SELL	임원퇴임	윤유진 Yujin Yoon	Coloso/Global	-2.5K	₩11,600	-12.1%	₩29M ($20K)
2026-01-01	BUY	신규선임	김창식 Kim Chang-sik	moving	2.2K	₩12,260	+19.9%	₩26M ($18K)
2025-12-23	SELL	Market Sell	오한섭 Hanseop Oh	moving	-12.0K	₩13,980	-5.2%	₩168M ($117K)
2025-12-17	SELL	Market Sell	성시형 Seong Si-hyung	moving	-9.9K	₩13,990	-5.1%	₩139M ($96K)
2025-12-17	SELL	Market Sell	이성용 Seongyong Lee	moving	-62.1K	₩13,990	-5.1%	₩869M ($604K)
2025-12-15	SELL	Market Sell	김태경 Taekyung Kim	moving	-4.0K	₩13,790	-6.6%	₩55M ($38K)
2025-07-14	SELL	Market Sell	임영수 Youngsoo Lim	moving	-11.0K	₩13,590	-8.2%	₩149M ($104K)
2025-07-14	SELL	Market Sell	정해용 Jeong Hae-yong	Managing Director	-11.0K	₩13,590	-8.2%	₩150M ($104K)
2025-07-14	SELL	Market Sell	차석현 Cha Seok-hyun	moving	-900	₩13,590	-8.2%	₩12M ($8K)
2025-07-10	SELL	Market Sell	정해용 Jeong Hae-yong	Managing Director	-4.6K	₩13,950	-5.4%	₩64M ($45K)
2025-07-09	SELL	Market Sell	김태경 Taekyung Kim	moving	-51.4K	₩13,920	-5.6%	₩715M ($497K)
2025-05-07	BUY	PROGRAM	차석현 Cha Seok-hyun	moving	450	₩8,010	+83.5%	₩4M ($3K)
2025-05-07	BUY	PROGRAM	성시형 Seong Si-hyung	moving	600	₩8,010	+83.5%	₩5M ($3K)
2025-05-07	BUY	PROGRAM	이성용 Seongyong Lee	moving	700	₩8,010	+83.5%	₩6M ($4K)
2025-05-07	BUY	PROGRAM	이왕은 This king	Managing Director	1.0K	₩8,010	+83.5%	₩8M ($6K)
2025-05-07	BUY	PROGRAM	정해용 Jeong Hae-yong	Managing Director	700	₩8,010	+83.5%	₩6M ($4K)
2025-05-07	BUY	PROGRAM	오한섭 Hanseop Oh	moving	600	₩8,010	+83.5%	₩5M ($3K)
2025-05-07	BUY	PROGRAM	김태경 Taekyung Kim	moving	700	₩8,010	+83.5%	₩6M ($4K)
2025-05-07	BUY	PROGRAM	최윤혁 Yunhyeok Choi	moving	700	₩8,010	+83.5%	₩6M ($4K)
2025-05-07	BUY	PROGRAM	박익종 Park Ik-jong	Managing Director	200	₩8,010	+83.5%	₩2M ($1K)
2025-05-07	BUY	PROGRAM	장석민 Jang Seok-min	Internal director	600	₩8,010	+83.5%	₩5M ($3K)
2025-05-07	BUY	PROGRAM	임영수 Youngsoo Lim	moving	700	₩8,010	+83.5%	₩6M ($4K)
2025-05-07	BUY	PROGRAM	황상하 Sangha Hwang	moving	450	₩8,010	+83.5%	₩4M ($3K)
2025-04-14	BUY	PROGRAM	정해용 Jeong Hae-yong	Managing Director	700	₩7,570	+94.2%	₩5M ($4K)
2025-04-14	BUY	PROGRAM	차석현 Cha Seok-hyun	moving	450	₩7,570	+94.2%	₩3M ($2K)
2025-04-14	BUY	PROGRAM	성시형 Seong Si-hyung	moving	600	₩7,570	+94.2%	₩5M ($3K)
2025-04-14	BUY	PROGRAM	황상하 Sangha Hwang	moving	450	₩7,570	+94.2%	₩3M ($2K)
2025-04-14	BUY	PROGRAM	김치헌 Kim Chi-heon	moving	600	₩7,570	+94.2%	₩5M ($3K)
2025-04-14	BUY	PROGRAM	임영수 Youngsoo Lim	moving	700	₩7,570	+94.2%	₩5M ($4K)
2025-04-14	BUY	PROGRAM	장석민 Jang Seok-min	Internal director	600	₩7,570	+94.2%	₩5M ($3K)
2025-04-14	BUY	PROGRAM	박익종 Park Ik-jong	Managing Director	200	₩7,570	+94.2%	₩2M ($1K)
2025-04-14	BUY	PROGRAM	최윤혁 Yunhyeok Choi	moving	700	₩7,570	+94.2%	₩5M ($4K)
2025-04-14	BUY	PROGRAM	김태경 Taekyung Kim	moving	700	₩7,570	+94.2%	₩5M ($4K)
2025-04-14	BUY	PROGRAM	오한섭 Hanseop Oh	moving	600	₩7,570	+94.2%	₩5M ($3K)
2025-04-14	BUY	PROGRAM	이왕은 This king	Managing Director	1.0K	₩7,570	+94.2%	₩8M ($5K)
2025-04-14	BUY	PROGRAM	이성용 Seongyong Lee	moving	700	₩7,570	+94.2%	₩5M ($4K)
2025-04-07	BUY	PROGRAM	김치헌 Kim Chi-heon	moving	600	₩7,350	+100.0%	₩4M ($3K)
2025-04-04	BUY	PROGRAM	홍송희 Songhee Hong	-	1.5M	₩7,600	+93.4%	₩11.5B ($8.0M)
2025-04-04	BUY	PROGRAM	오한섭 Hanseop Oh	moving	8.0K	₩7,600	+93.4%	₩61M ($42K)
2025-04-04	BUY	PROGRAM	이왕은 This king	Managing Director	45.7K	₩7,600	+93.4%	₩347M ($241K)
2025-04-04	BUY	PROGRAM	이성용 Seongyong Lee	moving	30.4K	₩7,600	+93.4%	₩231M ($160K)
2025-04-04	BUY	PROGRAM	정해용 Jeong Hae-yong	Managing Director	25.5K	₩7,600	+93.4%	₩194M ($135K)
2025-04-04	BUY	PROGRAM	장석민 Jang Seok-min	Internal director	22.8K	₩7,600	+93.4%	₩173M ($120K)
2025-04-04	BUY	PROGRAM	최윤혁 Yunhyeok Choi	moving	22.4K	₩7,600	+93.4%	₩171M ($118K)
2025-04-04	BUY	PROGRAM	김태경 Taekyung Kim	moving	30.0K	₩7,600	+93.4%	₩228M ($158K)
2025-04-04	BUY	PROGRAM	임영수 Youngsoo Lim	moving	10.8K	₩7,600	+93.4%	₩82M ($57K)
2025-04-04	BUY	PROGRAM	홍종훈 Hong Jong-hoon	-	2.8M	₩7,600	+93.4%	₩21.2B ($14.7M)
2025-04-04	BUY	PROGRAM	김치헌 Kim Chi-heon	moving	150	₩7,600	+93.4%	₩1M ($792)
2025-04-04	BUY	PROGRAM	성시형 Seong Si-hyung	moving	4.4K	₩7,600	+93.4%	₩33M ($23K)
2025-04-04	BUY	PROGRAM	홍재성 Hong Jae-seong	CEO	3.2M	₩7,600	+93.4%	₩24.2B ($16.8M)

Showing the 50 most recent of 53 filings.

Frequently asked questions

Who has been buying JS Corporation stock?: 7 distinct insiders have filed 0 disclosed insider purchases in JS Corporation (194370), most recently on 2026-03-26. 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 JS Corporation have?: JS Corporation has 0 buy-side and 9 sell-side disclosures on record, covering ₩2.3B ($1.6M) in total reported value, spanning 2025-01-07 to 2026-03-26.
Where does StockDrifts get JS Corporation 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 JS Corporation. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.