Who has been buying G2G Bio stock?

4 distinct insiders have filed 4 disclosed insider purchases in G2G Bio (456160), most recently on 2026-06-01. 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 G2G Bio have?

G2G Bio has 4 buy-side and 0 sell-side disclosures on record, covering ₩228M ($158K) in total reported value, spanning 2025-08-14 to 2026-06-01.

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.

G2G Bio 456160

Company

지투지바이오G2G Bio

Insiders

Buys

Total Value

₩228M ($158K)

Avg Return

-5.35%

Last Filing

2026-06-01

G2G Bio (456160) has 4 disclosed insider purchases and 0 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩228M ($158K) in reported transaction value. The earliest filing StockDrifts holds for G2G Bio is dated 2025-08-14; the most recent is 2026-06-01. Across these filings the average return since disclosure is -5.35%, 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
2026-07-30	BUY	Market Buy	조훈희 Jo Hoon-hee	moving	239	₩22,950	+62.1%	₩7M ($5K)
2026-06-01	BUY	신규선임	이종미 Jongmi Lee	moving	3.0K	₩56,400	-6.0%	₩169M ($118K)
2026-05-15	BUY	주식매수청구권 행사	최희경 Choi Hee-kyung	Managing Director	3.0K	₩66,400	-7.1%	₩199M ($138K)
2026-05-15	BUY	주식매수청구권 행사	이주한 emigrated	Managing Director	1.5K	₩66,400	-5.4%	₩100M ($69K)
2026-05-15	BUY	주식매수청구권 행사	이주한 emigrated	Managing Director	1.5K	₩66,400	-7.1%	₩100M ($69K)
2026-05-15	BUY	주식매수청구권 행사	이주한 emigrated	Managing Director	1.5K	₩66,400	-5.4%	₩100M ($69K)
2026-05-15	BUY	주식매수청구권 행사	설은영 Eunyoung Seol	vice president	2.8K	₩66,400	-7.1%	₩186M ($129K)
2026-04-20	BUY	신규선임	조훈희 Jo Hoon-hee	moving	100	₩76,700	-51.5%	₩6M ($4K)
2026-03-27	BUY	Market Buy	전교중 All school	president	670	₩78,800	-5.1%	₩53M ($37K)
2026-03-25	BUY	Market Buy	이희용 Heeyong Lee	CEO	1.2K	₩79,100	-5.4%	₩95M ($66K)
2026-03-25	BUY	Market Buy	최희경 Choi Hee-kyung	Managing Director	718	₩79,100	-5.4%	₩57M ($39K)
2026-03-25	BUY	Market Buy	설은영 Eunyoung Seol	vice president	300	₩79,100	-5.4%	₩24M ($16K)
2026-02-06	BUY	주식매수선택권	이정숙 Jeongsuk Lee	Managing Director	8.0K	₩79,700	+22.0%	₩638M ($443K)
2026-02-06	BUY	주식매수선택권	이용진 Yongjin Lee	vice president	22.5K	₩79,700	+22.0%	₩1.8B ($1.2M)
2026-02-06	BUY	주식매수선택권	노은한 noh eunhan	thanks	1.5K	₩79,700	+22.0%	₩120M ($83K)
2026-02-06	BUY	주식매수선택권	전교중 All school	president	4.0K	₩79,700	+22.0%	₩323M ($224K)
2026-02-06	BUY	주식매수선택권	김복만 Bokman Kim	Managing Director	3.0K	₩79,700	+22.0%	₩239M ($166K)
2026-02-06	BUY	주식매수선택권	전교중 All school	president	15.0K	₩79,700	+22.0%	₩1.2B ($830K)
2025-11-06	BUY	PROGRAM	홍진태 Jintae Hong	Outside Director	10.0K	₩59,300	+63.9%	₩591M ($410K)
2025-11-06	BUY	PROGRAM	이희용 Heeyong Lee	CEO	1.2M	₩59,300	+63.9%	₩71.3B ($49.5M)
2025-11-06	BUY	PROGRAM	최희경 Choi Hee-kyung	Managing Director	40.1K	₩59,300	+63.9%	₩2.4B ($1.7M)
2025-11-06	BUY	PROGRAM	이정숙 Jeongsuk Lee	Managing Director	3.7K	₩59,300	+63.9%	₩222M ($154K)
2025-11-06	BUY	PROGRAM	전교중 All school	Managing Director	23.1K	₩59,300	+63.9%	₩1.4B ($950K)
2025-11-06	BUY	PROGRAM	이용진 Yongjin Lee	vice president	2.2K	₩59,300	+63.9%	₩133M ($92K)
2025-11-06	BUY	PROGRAM	김복만 Bokman Kim	Managing Director	45.4K	₩59,300	+63.9%	₩2.7B ($1.9M)
2025-11-06	BUY	PROGRAM	설은영 Eunyoung Seol	vice president	407.3K	₩59,300	+63.9%	₩24.2B ($16.8M)
2025-11-06	BUY	PROGRAM	이주한 emigrated	moving	17.4K	₩59,300	+63.9%	₩1.0B ($715K)
2025-09-19	BUY	주식매수선택권	최희경 Choi Hee-kyung	Managing Director	500	₩78,042	+24.6%	₩39M ($27K)
2025-09-19	BUY	주식매수선택권	이주한 emigrated	moving	478	₩78,042	+24.6%	₩37M ($26K)
2025-09-19	BUY	주식매수선택권	이주한 emigrated	moving	500	₩78,042	+24.6%	₩39M ($27K)
2025-09-19	BUY	주식매수선택권	최희경 Choi Hee-kyung	Managing Director	478	₩78,042	+24.6%	₩37M ($26K)
2025-09-19	BUY	주식매수선택권	설은영 Eunyoung Seol	vice president	955	₩78,042	+24.6%	₩75M ($52K)
2025-08-14	BUY	PROGRAM	전교중 All school	Managing Director	11.5K	₩31,283	+210.7%	₩361M ($251K)
2025-08-14	BUY	신규상장	김복만 Bokman Kim	Managing Director	22.7K	₩31,283	+210.7%	₩710M ($493K)
2025-08-14	BUY	PROGRAM	홍진태 Jintae Hong	Outside Director	5.0K	₩31,283	+210.7%	₩156M ($108K)
2025-08-14	BUY	PROGRAM	이주한 emigrated	moving	7.7K	₩31,283	+210.7%	₩241M ($167K)
2025-08-14	BUY	PROGRAM	최희경 Choi Hee-kyung	Managing Director	19.1K	₩31,283	+210.7%	₩597M ($415K)
2025-08-14	BUY	PROGRAM	이용진 Yongjin Lee	vice president	1.1K	₩31,283	+210.7%	₩35M ($24K)
2025-08-14	BUY	PROGRAM	설은영 Eunyoung Seol	vice president	202.7K	₩31,283	+210.7%	₩6.3B ($4.4M)
2025-08-14	BUY	PROGRAM	이희용 Heeyong Lee	CEO	601.6K	₩31,283	+210.7%	₩18.8B ($13.1M)
2025-08-14	BUY	PROGRAM	이정숙 Jeongsuk Lee	Managing Director	1.9K	₩31,283	+210.7%	₩58M ($41K)

Frequently asked questions

Who has been buying G2G Bio stock?: 4 distinct insiders have filed 4 disclosed insider purchases in G2G Bio (456160), most recently on 2026-06-01. 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 G2G Bio have?: G2G Bio has 4 buy-side and 0 sell-side disclosures on record, covering ₩228M ($158K) in total reported value, spanning 2025-08-14 to 2026-06-01.
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.