Who has been buying Bia stock?

3 distinct insiders have filed 0 disclosed insider purchases in Bia (451250), most recently on 2025-12-18. 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 Bia have?

Bia has 0 buy-side and 6 sell-side disclosures on record, covering ₩7.8B ($5.4M) in total reported value, spanning 2024-04-25 to 2025-12-18.

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.

Bia 451250

Company

삐아Bia

Insiders

Buys

Total Value

₩7.8B ($5.4M)

Avg Return

+34.13%

Last Filing

2025-12-18

Bia (451250) has 0 disclosed insider purchases and 6 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩7.8B ($5.4M) in reported transaction value. The earliest filing StockDrifts holds for Bia is dated 2024-04-25; the most recent is 2025-12-18. Across these filings the average return since disclosure is +34.13%, 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
2025-12-18	SELL	Market Sell	이동운 Lee Dong-woon	moving	-5.5K	₩9,200	+3.0%	₩51M ($35K)
2025-11-25	SELL	Market Sell	오원선 Oh Won-seon	Managing Director	-5.0K	₩9,860	+9.5%	₩49M ($34K)
2025-08-21	BUY	주식매수선택권	김명철 Kim Myung-cheol	thanks	5.0K	₩10,020	-11.0%	₩50M ($35K)
2025-08-21	BUY	주식매수선택권	오원선 Oh Won-seon	Managing Director	13.5K	₩10,020	-11.0%	₩135M ($94K)
2025-08-21	BUY	주식매수선택권	이동운 Lee Dong-woon	moving	5.5K	₩10,020	-11.0%	₩55M ($38K)
2025-08-21	BUY	주식매수선택권	박광춘 Park Gwang-chun	CEO	25.0K	₩10,020	-11.0%	₩251M ($174K)
2024-05-03	SELL	Market Sell	유앤아이대부 You & I Loan	-	-58.4K	₩18,700	+52.3%	₩1.1B ($758K)
2024-05-02	SELL	Market Sell	유앤아이대부 You & I Loan	-	-31.0K	₩18,510	+51.8%	₩574M ($398K)
2024-04-30	SELL	Market Sell	유앤아이대부 You & I Loan	-	-113.0K	₩18,330	+51.3%	₩2.1B ($1.4M)
2024-04-29	SELL	Market Sell	유앤아이대부 You & I Loan	-	-280.0K	₩14,100	+36.7%	₩3.9B ($2.7M)
2024-04-25	BUY	신규상장	유앤아이대부 You & I Loan	-	1.2M	₩17,000	-47.5%	₩20.5B ($14.2M)
2024-04-25	BUY	신규상장	나우M&A투자펀드1호 Now M&A Investment Fund No. 1	-	6.1M	₩17,000	-47.5%	₩103.9B ($72.2M)

Frequently asked questions

Who has been buying Bia stock?: 3 distinct insiders have filed 0 disclosed insider purchases in Bia (451250), most recently on 2025-12-18. 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 Bia have?: Bia has 0 buy-side and 6 sell-side disclosures on record, covering ₩7.8B ($5.4M) in total reported value, spanning 2024-04-25 to 2025-12-18.
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.