Who has been buying Sunjin Beauty Science stock?

3 distinct insiders have filed 6 disclosed insider purchases in Sunjin Beauty Science (086710), most recently on 2026-06-30. 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 Sunjin Beauty Science have?

Sunjin Beauty Science has 6 buy-side and 0 sell-side disclosures on record, covering ₩482M ($334K) in total reported value, spanning 2024-09-24 to 2026-06-30.

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.

Sunjin Beauty Science 086710

Company

선진뷰티사이언스Sunjin Beauty Science

Insiders

Buys

Total Value

₩482M ($334K)

Avg Return

-2.88%

Last Filing

2026-06-30

Sunjin Beauty Science (086710) has 6 disclosed insider purchases and 0 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩482M ($334K) in reported transaction value. The earliest filing StockDrifts holds for Sunjin Beauty Science is dated 2024-09-24; the most recent is 2026-06-30. Across these filings the average return since disclosure is -2.88%, 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
2026-06-30	BUY	Market Buy	장폴 Jean Paul	Internal director	3.0K	₩6,610	+5.3%	₩20M ($14K)
2026-06-10	BUY	Market Buy	장폴 Jean Paul	Internal director	8.0K	-	-	-
2026-06-09	BUY	Market Buy	장폴 Jean Paul	Internal director	600	-	-	-
2026-06-05	BUY	Market Buy	이성호 Seongho Lee	Internal director	8.6K	-	-	-
2026-06-04	BUY	Market Buy	이성호 Seongho Lee	Internal director	9.6K	-	-	-
2026-03-26	BUY	신규선임	장폴 Jean Paul	Internal director	3.6K	₩9,680	+16.7%	₩35M ($24K)
2026-01-30	SELL	증여	이성호 Seongho Lee	Internal director	-77.5K	₩9,540	-6.3%	₩739M ($513K)
2026-01-30	SELL	증여	이성호 Seongho Lee	Internal director	-77.5K	₩9,540	-6.3%	₩739M ($513K)
2026-01-30	SELL	증여	이성호 Seongho Lee	Internal director	-77.5K	₩9,540	-6.3%	₩739M ($513K)
2026-01-30	SELL	증여	이성호 Seongho Lee	Internal director	-77.5K	₩9,540	-6.3%	₩739M ($513K)
2026-01-30	SELL	증여	이성호 Seongho Lee	Internal director	-77.5K	₩9,540	-6.3%	₩739M ($513K)
2026-01-30	SELL	증여	이성호 Seongho Lee	Internal director	-77.5K	₩9,540	-6.3%	₩739M ($513K)
2026-01-30	SELL	증여	이성호 Seongho Lee	Internal director	-77.5K	₩9,540	-6.3%	₩739M ($513K)
2025-12-23	BUY	상속	이성호 Seongho Lee	Internal director	1.0M	₩9,380	+8.1%	₩9.7B ($6.7M)
2025-12-23	SELL	피상속	이병철 Lee Byung-cheol	Internal director	-1.0M	₩9,380	-8.1%	₩9.7B ($6.7M)
2024-09-24	BUY	Market Buy	이병철 Lee Byung-cheol	Internal director	40.5K	₩11,400	-11.1%	₩462M ($321K)

Frequently asked questions

Who has been buying Sunjin Beauty Science stock?: 3 distinct insiders have filed 6 disclosed insider purchases in Sunjin Beauty Science (086710), most recently on 2026-06-30. 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 Sunjin Beauty Science have?: Sunjin Beauty Science has 6 buy-side and 0 sell-side disclosures on record, covering ₩482M ($334K) in total reported value, spanning 2024-09-24 to 2026-06-30.
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.