Who has been buying inbio stock?

6 distinct insiders have filed 275 disclosed insider purchases in inbio (352940), most recently on 2026-07-06. 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 inbio have?

inbio has 275 buy-side and 0 sell-side disclosures on record, covering ₩435M ($302K) in total reported value, spanning 2022-07-26 to 2026-07-06.

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.

inbio 352940

Company

인바이오inbio

Insiders

Buys

275

Total Value

₩435M ($302K)

Avg Return

-8.23%

Last Filing

2026-07-06

inbio (352940) has 275 disclosed insider purchases and 0 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩435M ($302K) in reported transaction value. The earliest filing StockDrifts holds for inbio is dated 2022-07-26; the most recent is 2026-07-06. Across these filings the average return since disclosure is -8.23%, 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
2026-08-26	BUY	Market Buy	이명재 Myungjae Lee	Chairman	506	₩1,990	-0.5%	₩1M ($713)
2026-08-25	BUY	Market Buy	이명재 Myungjae Lee	Chairman	4.7K	₩2,015	-1.7%	₩9M ($7K)
2026-08-24	BUY	Market Buy	이명재 Myungjae Lee	Chairman	8.5K	₩2,025	-2.2%	₩17M ($12K)
2026-08-21	BUY	Market Buy	이명재 Myungjae Lee	Chairman	5.7K	₩2,080	-4.8%	₩11M ($8K)
2026-08-20	BUY	Market Buy	이명재 Myungjae Lee	Chairman	1.4K	₩2,090	-5.3%	₩3M ($2K)
2026-08-19	BUY	Market Buy	이명재 Myungjae Lee	Chairman	400	₩2,025	-2.2%	₩806K ($560)
2026-08-18	BUY	Market Buy	이명재 Myungjae Lee	Chairman	200	₩2,025	+0.0%	₩401K ($278)
2026-08-14	BUY	Market Buy	이명재 Myungjae Lee	Chairman	22	₩2,015	+0.0%	₩44K ($31)
2026-08-13	BUY	Market Buy	이명재 Myungjae Lee	Chairman	1.1K	₩2,005	+0.5%	₩2M ($1K)
2026-08-13	BUY	Market Buy	조인선 Jo In-seon	vice president	590	₩2,005	+0.5%	₩1M ($812)
2026-08-12	BUY	Market Buy	조인선 Jo In-seon	vice president	2.5K	₩2,010	+0.3%	₩5M ($3K)
2026-08-10	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	1.1K	₩1,992	+0.0%	₩2M ($1K)
2026-08-06	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	783	₩1,988	+0.2%	₩2M ($1K)
2026-08-05	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	398	₩1,993	-0.1%	₩793K ($551)
2026-08-04	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	311	₩1,993	-0.1%	₩619K ($430)
2026-08-03	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	500	₩1,993	-0.1%	₩993K ($689)
2026-07-31	BUY	Market Buy	조인선 Jo In-seon	vice president	500	₩2,005	+0.5%	₩997K ($692)
2026-07-31	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	371	₩1,994	+0.6%	₩739K ($513)
2026-07-30	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	970	₩1,999	+0.3%	₩2M ($1K)
2026-07-30	BUY	Market Buy	조인선 Jo In-seon	vice president	300	₩1,999	+0.8%	₩598K ($415)
2026-07-29	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	755	₩2,000	+0.3%	₩2M ($1K)
2026-07-28	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	17	₩2,015	-0.5%	₩34K ($24)
2026-07-24	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	22	₩2,015	+0.0%	₩44K ($30)
2026-07-16	BUY	Market Buy	조인선 Jo In-seon	vice president	3.0K	₩2,015	+0.0%	₩6M ($4K)
2026-07-10	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	5	₩2,015	+0.0%	₩10K ($7)
2026-07-08	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	335	₩2,010	+0.3%	₩666K ($462)
2026-07-07	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	114	₩2,030	-0.7%	₩228K ($159)
2026-07-06	BUY	Market Buy	조인선 Jo In-seon	vice president	1.9K	₩2,035	-1.5%	₩4M ($3K)
2026-07-06	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	47	₩2,035	-1.0%	₩93K ($65)
2026-07-03	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	7	₩2,010	+0.3%	₩14K ($10)
2026-07-02	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	3	₩2,000	+0.8%	₩6K ($4)
2026-07-01	BUY	Market Buy	이혁재 Hyukjae Lee	CEO	41	₩2,010	+0.3%	₩81K ($57)
2026-06-30	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	327	₩2,010	+0.0%	₩657K ($456)
2026-06-30	BUY	Market Buy	조인선 Jo In-seon	vice president	1.2K	₩2,010	+0.0%	₩2M ($2K)
2026-06-29	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	115	₩2,010	+0.0%	₩231K ($161)
2026-06-26	BUY	Market Buy	조인선 Jo In-seon	vice president	1.1K	₩2,000	+0.5%	₩2M ($2K)
2026-06-26	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	106	₩2,000	+0.5%	₩212K ($147)
2026-06-25	BUY	Market Buy	조인선 Jo In-seon	vice president	488	₩2,050	-1.9%	₩1M ($695)
2026-06-25	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	311	₩2,050	-1.9%	₩638K ($443)
2026-06-24	BUY	Market Buy	조인선 Jo In-seon	vice president	29	₩2,025	-0.7%	₩59K ($41)
2026-06-24	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	9	₩2,025	-0.7%	₩18K ($13)
2026-06-23	BUY	Market Buy	조인선 Jo In-seon	vice president	15	₩2,040	-1.5%	₩31K ($21)
2026-06-23	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	41	₩2,040	-1.5%	₩84K ($58)
2026-06-22	BUY	Market Buy	조인선 Jo In-seon	vice president	236	₩2,060	-2.4%	₩486K ($338)
2026-06-22	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	3	₩2,060	-2.4%	₩6K ($4)
2026-06-16	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	58	₩2,075	-3.1%	₩120K ($84)
2026-06-15	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	243	₩2,065	-2.7%	₩502K ($348)
2026-06-12	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	1.5K	₩2,030	+1.7%	₩3M ($2K)
2026-06-11	BUY	Market Buy	이혁재 Hyukjae Lee	vice president	2.2K	₩2,005	+3.0%	₩5M ($3K)
2026-06-11	BUY	Market Buy	조인선 Jo In-seon	vice president	1.7K	₩2,005	+3.0%	₩3M ($2K)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying inbio stock?: 6 distinct insiders have filed 275 disclosed insider purchases in inbio (352940), most recently on 2026-07-06. 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 inbio have?: inbio has 275 buy-side and 0 sell-side disclosures on record, covering ₩435M ($302K) in total reported value, spanning 2022-07-26 to 2026-07-06.
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.