Who has been buying Nongwoo Bio stock?

2 distinct insiders have filed 14 disclosed insider purchases in Nongwoo Bio (054050), most recently on 2026-06-10. 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 Nongwoo Bio have?

Nongwoo Bio has 14 buy-side and 0 sell-side disclosures on record, covering ₩123M ($85K) in total reported value, spanning 2024-04-09 to 2026-06-10.

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.

Nongwoo Bio 054050

Company

농우바이오Nongwoo Bio

Insiders

Buys

Total Value

₩123M ($85K)

Avg Return

+6.85%

Last Filing

2026-06-10

Nongwoo Bio (054050) has 14 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩123M ($85K) in reported transaction value. The earliest filing StockDrifts holds for Nongwoo Bio is dated 2024-04-09; the most recent is 2026-06-10. Across these filings the average return since disclosure is +6.85%, 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
2026-06-10	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	4.0K	₩6,960	+4.3%	₩28M ($19K)
2025-08-18	BUY	Market Buy	최정훈 Jeonghoon Choi	Managing Director	701	₩8,250	+3.1%	₩6M ($4K)
2025-08-14	BUY	Market Buy	최정훈 Jeonghoon Choi	Managing Director	299	₩8,370	+1.7%	₩3M ($2K)
2025-08-13	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	2.0K	₩8,460	+0.6%	₩17M ($12K)
2025-07-21	BUY	Market Buy	최정훈 Jeonghoon Choi	Managing Director	1.0K	₩8,810	-3.4%	₩9M ($6K)
2025-04-02	BUY	Market Buy	최정훈 Jeonghoon Choi	Managing Director	600	₩7,160	+18.9%	₩4M ($3K)
2025-04-02	BUY	Market Buy	최정훈 Jeonghoon Choi	Managing Director	1.4K	₩7,160	+18.9%	₩10M ($7K)
2024-10-16	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	2.0K	₩7,480	+13.8%	₩15M ($10K)
2024-04-22	BUY	Market Buy	최정훈 Jeonghoon Choi	Managing Director	2.0K	₩7,980	+6.6%	₩16M ($11K)
2024-04-11	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	1.0K	₩7,990	+6.5%	₩8M ($6K)
2024-04-09	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	302	₩8,010	+6.2%	₩2M ($2K)
2024-04-09	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	6	₩8,010	+6.2%	₩48K ($33)
2024-04-09	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	95	₩8,010	+6.2%	₩761K ($528)
2024-04-09	BUY	Market Buy	양현구 Yang Hyeon-gu	CEO	597	₩8,010	+6.2%	₩5M ($3K)

Frequently asked questions

Who has been buying Nongwoo Bio stock?: 2 distinct insiders have filed 14 disclosed insider purchases in Nongwoo Bio (054050), most recently on 2026-06-10. 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 Nongwoo Bio have?: Nongwoo Bio has 14 buy-side and 0 sell-side disclosures on record, covering ₩123M ($85K) in total reported value, spanning 2024-04-09 to 2026-06-10.
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.