Who has been buying Wontech stock?

7 distinct insiders have filed 37 disclosed insider purchases in Wontech (336570), 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 Wontech have?

Wontech has 37 buy-side and 3 sell-side disclosures on record, covering ₩2.0B ($1.4M) in total reported value, spanning 2023-03-28 to 2026-06-22.

Where does StockDrifts get Wontech 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.

Wontech 336570

Company

원텍Wontech

Insiders

Buys

Total Value

₩2.0B ($1.4M)

Avg Return

+0.34%

Last Filing

2026-06-22

Wontech (336570) has 37 disclosed insider purchases and 3 disclosed disposals on record, filed by 7 distinct insiders. Together those filings cover ₩2.0B ($1.4M) in reported transaction value. The earliest filing StockDrifts holds for Wontech is dated 2023-03-28; 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 +0.34%, 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
2026-08-07	BUY	PROGRAM	김영철 Youngcheol Kim	Managing Director	540	₩5,330	-0.4%	₩3M ($2K)
2026-08-07	BUY	PROGRAM	박종덕 Jongdeok Park	thanks	540	₩5,330	-0.4%	₩3M ($2K)
2026-08-07	BUY	PROGRAM	서영석 Youngseok Seo	Deputy Director	540	₩5,330	-0.4%	₩3M ($2K)
2026-08-07	BUY	PROGRAM	김태봉 Taebong Kim	moving	540	₩5,330	-0.4%	₩3M ($2K)
2026-08-07	BUY	PROGRAM	김창영 Changyoung Kim	vice president	630	₩5,330	-0.4%	₩3M ($2K)
2026-08-07	BUY	PROGRAM	최정윤 Jeongyoon Choi	vice president	630	₩5,330	-0.4%	₩3M ($2K)
2026-06-22	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	32.2K	-	-	-
2026-06-10	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	958	-	-	-
2026-04-30	BUY	Market Buy	김정현 Kim Jeong-hyeon	CEO and President	130.3K	-	-	-
2026-04-14	SELL	증여	서영석 Youngseok Seo	Deputy Director	-90.0K	₩7,460	-1.1%	₩671M ($466K)
2026-04-10	BUY	자사주상여금	서영석 Youngseok Seo	Deputy Director	12.0K	₩7,160	+5.3%	₩86M ($60K)
2026-04-10	BUY	자사주상여금	김태봉 Taebong Kim	moving	10.0K	₩7,160	+5.3%	₩72M ($50K)
2026-04-10	BUY	자사주상여금	김정현 Kim Jeong-hyeon	CEO and President	200.0K	₩7,160	+5.3%	₩1.4B ($994K)
2026-04-10	BUY	자사주상여금	최정윤 Jeongyoon Choi	vice president	15.0K	₩7,160	+5.3%	₩107M ($75K)
2026-04-10	BUY	주식매수선택권	서영석 Youngseok Seo	Deputy Director	36.6K	₩7,160	+5.3%	₩262M ($182K)
2026-04-10	BUY	자사주상여금	김창영 Changyoung Kim	vice president	15.0K	₩7,160	+5.3%	₩107M ($75K)
2026-04-08	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	15.6K	₩7,120	+5.9%	₩111M ($77K)
2026-04-06	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	875	₩6,690	+12.7%	₩6M ($4K)
2026-03-11	BUY	Market Buy	김영철 Youngcheol Kim	Managing Director	1.5K	-	-	-
2026-02-26	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	751	₩7,640	-1.3%	₩6M ($4K)
2026-01-19	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	594	₩8,120	+0.3%	₩5M ($3K)
2025-12-16	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	780	₩7,700	+5.7%	₩6M ($4K)
2025-11-17	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	750	₩7,660	+6.3%	₩6M ($4K)
2025-09-16	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	560	₩10,290	-20.9%	₩6M ($4K)
2025-09-01	BUY	신규선임	김태봉 Taebong Kim	moving	6.8K	₩10,450	-22.1%	₩71M ($50K)
2025-08-25	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	594	₩10,020	-18.8%	₩6M ($4K)
2025-08-01	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	306	₩12,190	-33.2%	₩4M ($3K)
2025-07-04	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	190	₩10,730	-24.1%	₩2M ($1K)
2025-06-11	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	599	₩10,480	-22.3%	₩6M ($4K)
2025-05-26	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	708	₩9,190	-11.4%	₩7M ($5K)
2025-04-28	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	1.3K	₩7,940	+2.5%	₩10M ($7K)
2025-04-11	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	475	₩7,700	+5.7%	₩4M ($3K)
2025-04-08	BUY	주식매수청구권 행사	서영석 Youngseok Seo	moving	27.0K	₩7,180	+13.4%	₩194M ($135K)
2025-03-11	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	954	₩6,590	+23.5%	₩6M ($4K)
2025-01-31	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	2.0K	₩5,530	+47.2%	₩11M ($8K)
2024-11-19	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	2.5K	₩4,495	+81.1%	₩11M ($8K)
2024-08-16	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	954	₩6,110	+33.2%	₩6M ($4K)
2024-07-26	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	579	₩6,680	+21.9%	₩4M ($3K)
2024-07-22	BUY	Market Buy	유춘희 Yoo Chun-hee	vice president	3.0K	₩7,100	+14.7%	₩21M ($15K)
2024-07-12	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	861	₩6,650	+22.4%	₩6M ($4K)
2024-05-29	BUY	Market Buy	최정윤 Jeongyoon Choi	vice president	3.7K	₩7,540	+8.0%	₩28M ($19K)
2024-05-16	BUY	Market Buy	김종원 Kim Jong-won	CEO Chairman	2.4K	₩8,130	+0.1%	₩19M ($13K)
2024-05-03	SELL	Market Sell	김형준 Hyungjun Kim	vice president	-150.0K	₩10,800	+24.6%	₩1.6B ($1.1M)
2024-05-02	SELL	Market Sell	김형준 Hyungjun Kim	vice president	-6.4K	₩10,650	+23.6%	₩68M ($48K)
2024-04-19	BUY	수증	유춘희 Yoo Chun-hee	vice president	89.4K	₩11,570	-29.6%	₩1.0B ($718K)
2024-04-12	BUY	수증	김정현 Kim Jeong-hyeon	CEO and President	95.0K	₩10,700	-23.9%	₩1.0B ($706K)
2024-04-11	BUY	주식매수선택권	김형준 Hyungjun Kim	vice president	257.3K	₩10,240	-20.5%	₩2.6B ($1.8M)
2024-04-11	BUY	주식매수선택권	서영석 Youngseok Seo	moving	65.0K	₩10,240	-20.5%	₩666M ($462K)
2024-04-11	BUY	주식매수청구권 행사	이규동 Lee Gyu-dong	moving	6.4K	₩10,240	-20.5%	₩66M ($46K)
2024-02-08	BUY	Market Buy	유춘희 Yoo Chun-hee	vice president	1.5K	₩7,740	+5.2%	₩12M ($8K)

Showing the 50 most recent of 62 filings.

Frequently asked questions

Who has been buying Wontech stock?: 7 distinct insiders have filed 37 disclosed insider purchases in Wontech (336570), 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 Wontech have?: Wontech has 37 buy-side and 3 sell-side disclosures on record, covering ₩2.0B ($1.4M) in total reported value, spanning 2023-03-28 to 2026-06-22.
Where does StockDrifts get Wontech 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 Wontech. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.