Who has been buying Humedics stock?

5 distinct insiders have filed 4 disclosed insider purchases in Humedics (200670), most recently on 2026-04-27. 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 Humedics have?

Humedics has 4 buy-side and 8 sell-side disclosures on record, covering ₩804M ($559K) in total reported value, spanning 2024-12-19 to 2026-04-27.

Where does StockDrifts get Humedics 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.

Humedics 200670

Company

휴메딕스Humedics

Insiders

Buys

Total Value

₩804M ($559K)

Avg Return

+14.08%

Last Filing

2026-04-27

Humedics (200670) has 4 disclosed insider purchases and 8 disclosed disposals on record, filed by 5 distinct insiders. Together those filings cover ₩804M ($559K) in reported transaction value. The earliest filing StockDrifts holds for Humedics is dated 2024-12-19; the most recent is 2026-04-27. 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 +14.08%, 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
2026-04-27	BUY	Market Buy	윤연상 Yeonsang Yoon	moving	1.4K	₩36,200	+1.5%	₩52M ($36K)
2026-04-24	BUY	Market Buy	윤연상 Yeonsang Yoon	moving	1.4K	₩35,600	+3.2%	₩51M ($36K)
2026-04-23	BUY	Market Buy	윤연상 Yeonsang Yoon	moving	1.4K	₩34,750	+5.8%	₩49M ($34K)
2026-04-22	BUY	Market Buy	윤연상 Yeonsang Yoon	moving	1.4K	₩34,850	+5.5%	₩49M ($34K)
2025-11-14	BUY	수증	윤연상 Yeonsang Yoon	moving	41.0K	₩49,550	-11.2%	₩2.0B ($1.4M)
2025-11-14	SELL	증여	윤성태 Seongtae Yoon	Other non-executive directors	-41.0K	₩49,550	+11.2%	₩2.0B ($1.4M)
2025-09-08	SELL	Market Sell	장윤진 Yunjin Jang	moving	-1.9K	₩63,600	+30.8%	₩124M ($86K)
2025-09-03	BUY	주식매수선택권	장윤진 Yunjin Jang	moving	1.9K	₩54,000	-18.5%	₩105M ($73K)
2025-07-22	SELL	Market Sell	장윤진 Yunjin Jang	moving	-2.3K	₩73,000	+39.7%	₩170M ($118K)
2025-07-21	SELL	Market Sell	이은숙 Eunsuk Lee	moving	-417	₩57,900	+24.0%	₩24M ($17K)
2025-07-09	SELL	Market Sell	이은숙 Eunsuk Lee	moving	-417	₩55,700	+21.0%	₩23M ($16K)
2025-07-02	SELL	Market Sell	이은숙 Eunsuk Lee	moving	-417	₩54,300	+19.0%	₩23M ($16K)
2025-06-23	BUY	주식매수선택권	이은숙 Eunsuk Lee	moving	1.3K	₩58,400	-24.7%	₩73M ($51K)
2025-06-02	SELL	Market Sell	하재석 Ha Jae-seok	Managing Director	-1.9K	₩53,500	+17.8%	₩104M ($72K)
2025-05-26	BUY	주식매수선택권	하재석 Ha Jae-seok	Managing Director	1.9K	₩55,600	-20.9%	₩108M ($75K)
2025-03-26	BUY	신규선임	윤연상 Yeonsang Yoon	moving	87.4K	₩40,750	+8.0%	₩3.6B ($2.5M)
2025-01-02	SELL	Market Sell	배준규 Bae Jun-gyu	Managing Director	-333	₩42,550	-3.4%	₩14M ($10K)
2024-12-23	SELL	Market Sell	배준규 Bae Jun-gyu	Managing Director	-2.6K	₩45,900	+4.1%	₩120M ($83K)
2024-12-19	BUY	주식매수선택권	배준규 Bae Jun-gyu	Managing Director	1.9K	₩42,850	+2.7%	₩83M ($58K)

Frequently asked questions

Who has been buying Humedics stock?: 5 distinct insiders have filed 4 disclosed insider purchases in Humedics (200670), most recently on 2026-04-27. 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 Humedics have?: Humedics has 4 buy-side and 8 sell-side disclosures on record, covering ₩804M ($559K) in total reported value, spanning 2024-12-19 to 2026-04-27.
Where does StockDrifts get Humedics 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 Humedics. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.