Who has been buying Bioinfra Life Science stock?

1 distinct insiders have filed 3 disclosed insider purchases in Bioinfra Life Science (266470), most recently on 2024-12-07. 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 Bioinfra Life Science have?

Bioinfra Life Science has 3 buy-side and 35 sell-side disclosures on record, covering ₩156M ($108K) in total reported value, spanning 2023-02-10 to 2024-12-07.

Where does StockDrifts get Bioinfra Life Science 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.

Bioinfra Life Science 266470

Company

바이오인프라생명과학Bioinfra Life Science

Insiders

Buys

Total Value

₩156M ($108K)

Avg Return

+31.05%

Last Filing

2024-12-07

Bioinfra Life Science (266470) has 3 disclosed insider purchases and 35 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩156M ($108K) in reported transaction value. The earliest filing StockDrifts holds for Bioinfra Life Science is dated 2023-02-10; the most recent is 2024-12-07. 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 +31.05%, 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
2024-12-07	BUY	제3자배정유상증자	블랑두부 Blanc Tofu	-	3.0M	₩263	-12.9%	₩789M ($548K)
2024-12-07	BUY	제3자배정유상증자	팬시스쿼드 Fancy Quad	-	3.2M	₩263	-12.9%	₩842M ($584K)
2024-10-22	BUY	제3자배정유상증자	이정호 Jeongho Lee	-	3.0M	₩279	-17.9%	₩837M ($581K)
2024-08-31	BUY	제3자배정유상증자	이정호 Jeongho Lee	-	3.0M	₩318	-28.0%	₩954M ($663K)
2024-05-21	SELL	Market Sell	김철우 Kim Cheol-woo	-	-30.9K	₩280	+18.2%	₩9M ($6K)
2024-05-20	SELL	Market Sell	김철우 Kim Cheol-woo	-	-2	₩262	+12.6%	₩524 ($0)
2024-05-17	SELL	Market Sell	김철우 Kim Cheol-woo	-	-17.7K	₩293	+21.8%	₩5M ($4K)
2024-05-16	SELL	Market Sell	김철우 Kim Cheol-woo	-	-9.3K	₩277	+17.3%	₩3M ($2K)
2024-05-09	SELL	Market Sell	김철우 Kim Cheol-woo	-	-53	₩312	+26.6%	₩17K ($11)
2024-05-08	SELL	Market Sell	김철우 Kim Cheol-woo	-	-598	₩274	+16.4%	₩164K ($114)
2024-05-07	SELL	Market Sell	김철우 Kim Cheol-woo	-	-30.0K	₩255	+10.2%	₩8M ($5K)
2024-05-02	SELL	Market Sell	김철우 Kim Cheol-woo	-	-30.0K	₩284	+19.4%	₩9M ($6K)
2024-04-26	SELL	Market Sell	김철우 Kim Cheol-woo	-	-11.5K	₩227	-0.9%	₩3M ($2K)
2024-04-22	SELL	Market Sell	김철우 Kim Cheol-woo	-	-14.0K	₩225	-1.8%	₩3M ($2K)
2024-04-19	SELL	Market Sell	김철우 Kim Cheol-woo	-	-512	₩230	+0.4%	₩118K ($82)
2024-04-18	SELL	Market Sell	김철우 Kim Cheol-woo	-	-15.9K	₩240	+4.6%	₩4M ($3K)
2024-04-17	SELL	Market Sell	김철우 Kim Cheol-woo	-	-3.9K	₩278	+17.6%	₩1M ($749)
2024-04-16	SELL	Market Sell	김철우 Kim Cheol-woo	-	-3.3K	₩255	+10.2%	₩836K ($581)
2024-04-12	SELL	Market Sell	김철우 Kim Cheol-woo	-	-20.8K	₩295	+22.4%	₩6M ($4K)
2024-04-11	SELL	Market Sell	김철우 Kim Cheol-woo	-	-1	₩294	+22.1%	₩294 ($0)
2024-04-09	SELL	Market Sell	김철우 Kim Cheol-woo	-	-4.5K	₩270	+15.2%	₩1M ($843)
2024-04-05	SELL	Market Sell	김철우 Kim Cheol-woo	-	-30.0K	₩319	+28.2%	₩10M ($7K)
2023-07-17	BUY	Market Buy	김철우 Kim Cheol-woo	-	8.0K	₩425	-46.1%	₩3M ($2K)
2023-07-04	SELL	Market Sell	김철우 Kim Cheol-woo	-	-1	₩495	+53.7%	₩495 ($0)
2023-06-30	BUY	Market Buy	김철우 Kim Cheol-woo	-	12.7K	₩558	-59.0%	₩7M ($5K)
2023-06-14	SELL	Market Sell	김철우 Kim Cheol-woo	-	-5.7K	₩519	+55.9%	₩3M ($2K)
2023-05-08	SELL	Market Sell	김철우 Kim Cheol-woo	-	-50.0K	₩357	+35.9%	₩18M ($12K)
2023-04-25	SELL	Market Sell	김철우 Kim Cheol-woo	-	-8.0K	₩505	+54.6%	₩4M ($3K)
2023-04-13	SELL	Market Sell	김철우 Kim Cheol-woo	-	-10.0K	₩520	+56.0%	₩5M ($4K)
2023-04-11	SELL	Market Sell	김철우 Kim Cheol-woo	-	-10.0K	₩639	+64.2%	₩6M ($4K)
2023-04-10	SELL	Market Sell	김철우 Kim Cheol-woo	-	-10.0K	₩650	+64.8%	₩7M ($5K)
2023-04-07	SELL	Market Sell	김철우 Kim Cheol-woo	-	-5.0K	₩670	+65.8%	₩3M ($2K)
2023-04-04	SELL	Market Sell	김철우 Kim Cheol-woo	-	-4	₩695	+67.0%	₩3K ($2)
2023-03-31	SELL	Market Sell	김철우 Kim Cheol-woo	-	-10.0K	₩749	+69.4%	₩7M ($5K)
2023-03-31	BUY	Market Buy	김철우 Kim Cheol-woo	-	20.0K	₩749	-69.4%	₩15M ($10K)
2023-03-15	SELL	Market Sell	김철우 Kim Cheol-woo	-	-5.0K	₩730	+68.6%	₩4M ($3K)
2023-03-13	SELL	Market Sell	김철우 Kim Cheol-woo	-	-1.2K	₩700	+67.3%	₩869K ($603)
2023-03-08	SELL	Market Sell	김철우 Kim Cheol-woo	-	-2.1K	₩700	+67.3%	₩1M ($1K)
2023-02-27	SELL	Market Sell	김철우 Kim Cheol-woo	-	-5.0K	₩885	+74.1%	₩4M ($3K)
2023-02-22	SELL	Market Sell	김철우 Kim Cheol-woo	-	-5.0K	₩940	+75.6%	₩5M ($3K)
2023-02-13	SELL	Market Sell	김철우 Kim Cheol-woo	-	-12	₩975	+76.5%	₩12K ($8)
2023-02-10	SELL	Market Sell	김철우 Kim Cheol-woo	-	-111	₩995	+77.0%	₩110K ($77)

Frequently asked questions

Who has been buying Bioinfra Life Science stock?: 1 distinct insiders have filed 3 disclosed insider purchases in Bioinfra Life Science (266470), most recently on 2024-12-07. 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 Bioinfra Life Science have?: Bioinfra Life Science has 3 buy-side and 35 sell-side disclosures on record, covering ₩156M ($108K) in total reported value, spanning 2023-02-10 to 2024-12-07.
Where does StockDrifts get Bioinfra Life Science 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 Bioinfra Life Science. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.