Who has been buying OPASNET stock?

0 distinct insiders have filed 0 disclosed insider purchases in OPASNET (173130), most recently on 2025-12-23. 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 OPASNET have?

OPASNET has 0 buy-side and 0 sell-side disclosures on record, spanning 2024-03-28 to 2025-12-23.

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.

OPASNET 173130

Company

오파스넷OPASNET

Insiders

Buys

Total Value

—

Avg Return

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Last Filing

2025-12-23

OPASNET (173130) has 0 disclosed insider purchases and 0 disclosed disposals on record, filed by 0 distinct insiders. The earliest filing StockDrifts holds for OPASNET is dated 2024-03-28; the most recent is 2025-12-23.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2025-12-23	SELL	증여	장수현 Soohyun Jang	CEO	-80.0K	₩6,750	-16.1%	₩540M ($375K)
2025-12-23	SELL	증여	김윤정 Yunjeong Kim	-	-80.0K	₩6,750	-16.1%	₩540M ($375K)
2025-12-23	BUY	수증	장수현 Soohyun Jang	CEO	80.0K	₩6,750	+16.1%	₩540M ($375K)
2025-12-23	BUY	수증	김윤정 Yunjeong Kim	-	80.0K	₩6,750	+16.1%	₩540M ($375K)
2024-03-28	BUY	PROGRAM	배재성 Bae Jae-seong	Vice President (Internal Director)	11.6K	₩8,280	-5.3%	₩96M ($67K)
2024-03-28	BUY	PROGRAM	장수현 Soohyun Jang	CEO	300.0K	₩8,280	-5.3%	₩2.5B ($1.7M)
2024-03-28	BUY	PROGRAM	장재환 Jaehwan Jang	President (CEO)	2.8K	₩8,280	-5.3%	₩23M ($16K)
2024-03-28	BUY	PROGRAM	김성호 Seongho Kim	President (CEO)	10	₩8,280	-5.3%	₩83K ($58)
2024-03-28	BUY	PROGRAM	윤명현 Myeonghyeon Yoon	President (CEO)	1.0K	₩8,280	-5.3%	₩9M ($6K)
2024-03-28	BUY	PROGRAM	제갈응식 Zhuge Eungsik	President (CEO)	1.5K	₩8,280	-5.3%	₩12M ($9K)
2024-03-28	BUY	PROGRAM	김윤정 Yunjeong Kim	-	87.9K	₩8,280	-5.3%	₩728M ($505K)
2024-03-28	BUY	PROGRAM	박건상 Park Geon-sang	Head of Pharmaceutical Compounding Department	85.0K	₩8,280	-5.3%	₩704M ($489K)

Frequently asked questions

Who has been buying OPASNET stock?: 0 distinct insiders have filed 0 disclosed insider purchases in OPASNET (173130), most recently on 2025-12-23. 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 OPASNET have?: OPASNET has 0 buy-side and 0 sell-side disclosures on record, spanning 2024-03-28 to 2025-12-23.
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.