Who has been buying Jaysys Medical stock?

7 distinct insiders have filed 2 disclosed insider purchases in Jaysys Medical (287410), most recently on 2024-10-23. 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 Jaysys Medical have?

Jaysys Medical has 2 buy-side and 28 sell-side disclosures on record, covering ₩18.4B ($12.8M) in total reported value, spanning 2024-03-05 to 2024-10-23.

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.

Jaysys Medical 287410

Company

제이시스메디칼Jaysys Medical

Insiders

Buys

Total Value

₩18.4B ($12.8M)

Avg Return

-1.98%

Last Filing

2024-10-23

Jaysys Medical (287410) has 2 disclosed insider purchases and 28 disclosed disposals on record, filed by 7 distinct insiders. Together those filings cover ₩18.4B ($12.8M) in reported transaction value. The earliest filing StockDrifts holds for Jaysys Medical is dated 2024-03-05; the most recent is 2024-10-23. Across these filings the average return since disclosure is -1.98%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

No price data available

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2024-10-23	BUY	교환	시러큐스서브코 Syracuse Subco	-	5.1M	₩12,900	+0.0%	₩66.1B ($45.9M)
2024-08-22	BUY	Market Buy	시러큐스서브코 Syracuse Subco	-	298.6K	₩12,830	+0.6%	₩3.8B ($2.7M)
2024-08-21	BUY	Market Buy	시러큐스서브코 Syracuse Subco	-	146.7K	₩12,750	+1.2%	₩1.9B ($1.3M)
2024-08-16	BUY	공개매수	시러큐스서브코 Syracuse Subco	-	7.2M	₩12,920	-0.1%	₩92.6B ($64.3M)
2024-08-16	SELL	공개매수청약	이명훈 Myung-Hoon Lee	moving	-753.6K	₩12,920	+0.1%	₩9.7B ($6.8M)
2024-07-24	BUY	장외매수	시러큐스서브코 Syracuse Subco	-	18.0M	₩12,870	+0.2%	₩231.3B ($160.6M)
2024-07-24	SELL	장외매도	강동환 Donghwan Kang	Internal director	-18.0M	₩12,870	-0.2%	₩231.3B ($160.6M)
2024-07-24	BUY	공개매수	시러큐스서브코 Syracuse Subco	-	42.5M	₩12,870	+0.2%	₩547.0B ($379.8M)
2024-07-24	BUY	장외매수	시러큐스서브코 Syracuse Subco	-	2.5M	₩12,870	+0.2%	₩32.0B ($22.2M)
2024-07-24	SELL	장외매도	이명훈 Myung-Hoon Lee	moving	-2.5M	₩12,870	-0.2%	₩32.0B ($22.2M)
2024-07-18	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-20.0K	₩12,920	+0.1%	₩258M ($179K)
2024-07-17	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-5.4K	₩12,910	+0.1%	₩70M ($48K)
2024-07-17	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-87.2K	₩12,910	+0.1%	₩1.1B ($781K)
2024-07-16	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-13.2K	₩12,910	+0.1%	₩170M ($118K)
2024-07-10	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-80.0K	₩12,900	+0.0%	₩1.0B ($717K)
2024-07-09	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-70.0K	₩12,900	+0.0%	₩903M ($627K)
2024-07-08	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-50.0K	₩12,900	+0.0%	₩645M ($448K)
2024-07-08	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-5.6K	₩12,900	+0.0%	₩72M ($50K)
2024-07-05	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-546	₩12,890	-0.1%	₩7M ($5K)
2024-07-05	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-20.0K	₩12,890	-0.1%	₩258M ($179K)
2024-07-04	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-10.0K	₩12,890	-0.1%	₩129M ($90K)
2024-07-03	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-50.0K	₩12,880	-0.2%	₩644M ($447K)
2024-07-03	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-50.0K	₩12,880	-0.2%	₩644M ($447K)
2024-07-03	SELL	Market Sell	이명훈 Myung-Hoon Lee	moving	-37.6K	₩12,880	-0.2%	₩485M ($337K)
2024-07-01	SELL	Market Sell	강일권 Kang Il-kwon	Managing Director	-2.0K	₩12,890	-0.1%	₩26M ($18K)
2024-06-25	SELL	Market Sell	안병석 Byeongseok Ahn	moving	-23.0K	₩12,860	-0.3%	₩296M ($205K)
2024-06-20	SELL	Market Sell	선혜진 Hyejin Seon	moving	-20.1K	₩12,860	-0.3%	₩258M ($179K)
2024-06-18	SELL	Market Sell	선혜진 Hyejin Seon	moving	-50.0K	₩12,830	-0.6%	₩642M ($445K)
2024-06-18	SELL	Market Sell	선혜진 Hyejin Seon	moving	-50.0K	₩12,830	-0.6%	₩642M ($445K)
2024-06-14	SELL	Market Sell	선혜진 Hyejin Seon	moving	-11.7K	₩12,800	-0.8%	₩150M ($104K)
2024-06-14	SELL	Market Sell	김민영 Minyoung Kim	Managing Director	-135.7K	₩12,800	-0.8%	₩1.7B ($1.2M)
2024-06-12	SELL	Market Sell	김민영 Minyoung Kim	Managing Director	-17.2K	₩12,790	-0.9%	₩220M ($153K)
2024-06-12	SELL	Market Sell	YI WON JU	torture	-25.0K	₩12,790	-0.9%	₩320M ($222K)
2024-06-12	SELL	Market Sell	YI WON JU	torture	-24.7K	₩12,790	-0.9%	₩316M ($219K)
2024-05-28	SELL	Market Sell	YI WON JU	torture	-1.2K	₩11,660	-10.6%	₩14M ($10K)
2024-05-23	SELL	Market Sell	YI WON JU	torture	-5.0K	₩12,030	-7.2%	₩60M ($42K)
2024-05-20	SELL	Market Sell	선혜진 Hyejin Seon	moving	-10.0K	₩11,770	-9.6%	₩118M ($82K)
2024-04-23	SELL	Market Sell	김민영 Minyoung Kim	Managing Director	-143.0K	₩10,120	-27.5%	₩1.4B ($1.0M)
2024-03-31	SELL	임원퇴임	김태환 Taehwan Kim	Managing Director	-305.9K	₩8,930	-44.5%	₩2.7B ($1.9M)
2024-03-05	BUY	주식매수청구권 행사	김민영 Minyoung Kim	Managing Director	25.0K	₩7,910	+63.1%	₩198M ($137K)
2024-03-05	BUY	주식매수청구권 행사	안병석 Byeongseok Ahn	moving	23.0K	₩7,910	+63.1%	₩182M ($126K)

Frequently asked questions

Who has been buying Jaysys Medical stock?: 7 distinct insiders have filed 2 disclosed insider purchases in Jaysys Medical (287410), most recently on 2024-10-23. 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 Jaysys Medical have?: Jaysys Medical has 2 buy-side and 28 sell-side disclosures on record, covering ₩18.4B ($12.8M) in total reported value, spanning 2024-03-05 to 2024-10-23.
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.