Who has been buying gigabis stock?

13 distinct insiders have filed 66 disclosed insider purchases in gigabis (420770), most recently on 2026-07-07. 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 gigabis have?

gigabis has 66 buy-side and 23 sell-side disclosures on record, covering ₩12.6B ($8.8M) in total reported value, spanning 2024-06-03 to 2026-07-07.

Where does StockDrifts get gigabis 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.

gigabis 420770

Company

기가비스gigabis

Insiders

Buys

Total Value

₩12.6B ($8.8M)

Avg Return

+146.36%

Last Filing

2026-07-07

gigabis (420770) has 66 disclosed insider purchases and 23 disclosed disposals on record, filed by 13 distinct insiders. Together those filings cover ₩12.6B ($8.8M) in reported transaction value. The earliest filing StockDrifts holds for gigabis is dated 2024-06-03; the most recent is 2026-07-07. 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 +146.36%, 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
2026-07-27	SELL	시간외매매	이재곤 Jae-Gon Lee	-	-320.0K	₩115,600	+10.5%	₩38.3B ($26.6M)
2026-07-07	SELL	Market Sell	신용대 credit university	moving	-200	₩140,000	-8.2%	₩28M ($19K)
2026-07-02	SELL	Market Sell	김진철 Jincheol Kim	moving	-500	₩174,800	+4.5%	₩87M ($61K)
2026-06-29	SELL	Market Sell	오제환 Oh Je-hwan	vice president	-30.0K	₩175,500	+4.8%	₩5.3B ($3.7M)
2026-06-24	SELL	Market Sell	신찬희 Shin Chan-hee	moving	-507	₩155,800	-7.0%	₩79M ($55K)
2026-06-16	SELL	Market Sell	김진철 Jincheol Kim	moving	-500	₩141,900	+2.0%	₩71M ($49K)
2026-06-09	SELL	Market Sell	임홍규 Honggyu Lim	moving	-1.1K	₩124,700	-12.4%	₩133M ($93K)
2026-06-08	SELL	Market Sell	김종준 Jongjun Kim	Internal director	-34.5K	₩123,500	-13.5%	₩4.3B ($3.0M)
2026-06-02	SELL	Market Sell	윤기섭 Yoon Ki-seop	moving	-2.4K	₩125,400	-14.8%	₩301M ($209K)
2026-05-19	SELL	Market Sell	최종균 Choi Jong-gyun	moving	-4.0K	₩119,800	-9.1%	₩479M ($333K)
2026-05-13	BUY	기타	이용규 Yonggyu Lee	Managing Director	2.3K	₩127,100	-5.5%	₩295M ($205K)
2026-05-08	BUY	기타	강경완 Kang Kyung-wan	moving	103	₩102,200	+17.5%	₩11M ($7K)
2026-05-08	BUY	기타	강경완 Kang Kyung-wan	moving	2.5K	₩102,200	+17.5%	₩256M ($177K)
2026-04-30	SELL	Market Sell	신용대 credit university	moving	-600	-	-	-
2026-04-24	BUY	기타	신용대 credit university	moving	90	₩100,200	+8.9%	₩9M ($6K)
2026-03-24	SELL	Market Sell	서상국 Seo Sang-guk	moving	-2.8K	₩70,000	-11.4%	₩198M ($137K)
2026-03-20	BUY	기타	서상국 Seo Sang-guk	moving	2.8K	₩78,700	-0.9%	₩222M ($154K)
2026-03-13	SELL	Market Sell	신찬희 Shin Chan-hee	moving	-600	₩72,300	-7.9%	₩43M ($30K)
2026-03-09	SELL	Market Sell	김상준 Sangjun Kim	moving	-2.4K	₩63,200	-23.4%	₩151M ($105K)
2026-03-05	SELL	Market Sell	이호영 Hoyoung Lee	moving	-1.0K	₩71,300	-9.4%	₩72M ($50K)
2026-02-09	SELL	Market Sell	윤기섭 Yoon Ki-seop	moving	-41	₩65,100	-121.2%	₩3M ($2K)
2026-01-21	SELL	Market Sell	김상준 Sangjun Kim	moving	-2.2K	₩54,100	-44.2%	₩117M ($81K)
2026-01-21	SELL	Market Sell	이호영 Hoyoung Lee	moving	-1.0K	₩54,100	-44.2%	₩54M ($38K)
2026-01-01	BUY	신규선임	이호영 Hoyoung Lee	moving	2.0K	₩31,700	+146.1%	₩64M ($44K)
2026-01-01	BUY	신규선임	김상준 Sangjun Kim	moving	4.5K	₩31,700	+146.1%	₩144M ($100K)
2025-12-03	SELL	시간외매매	이재승 Jaeseung Lee	vice president	-120.0K	₩35,800	-117.9%	₩4.3B ($3.0M)
2025-08-21	BUY	Market Buy	강해철 Kang Hae-cheol	CEO	3.5K	₩23,700	+229.1%	₩83M ($58K)
2025-07-03	BUY	Market Buy	신용대 credit university	moving	710	₩26,200	+197.7%	₩19M ($13K)
2025-07-01	BUY	Market Buy	강해철 Kang Hae-cheol	CEO	7.4K	₩25,300	+208.3%	₩187M ($130K)
2025-05-20	BUY	신규보고	신용대 credit university	moving	120	₩25,500	+205.9%	₩3M ($2K)
2025-05-20	BUY	신규보고	신용대 credit university	moving	100	₩25,500	+205.9%	₩3M ($2K)
2025-05-20	BUY	신규보고	신용대 credit university	moving	17	₩25,500	+205.9%	₩434K ($301)
2025-05-20	BUY	신규보고	신용대 credit university	moving	148	₩25,500	+205.9%	₩4M ($3K)
2025-05-20	BUY	신규보고	신용대 credit university	moving	15	₩25,500	+205.9%	₩383K ($266)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	248	₩26,300	+196.6%	₩7M ($5K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	101	₩26,300	+196.6%	₩3M ($2K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	377	₩26,300	+196.6%	₩10M ($7K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	246	₩26,300	+196.6%	₩6M ($4K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	154	₩26,300	+196.6%	₩4M ($3K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	184	₩26,300	+196.6%	₩5M ($3K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	155	₩26,300	+196.6%	₩4M ($3K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	3	₩26,300	+196.6%	₩79K ($55)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	66	₩26,300	+196.6%	₩2M ($1K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	5	₩26,300	+196.6%	₩132K ($91)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	26	₩26,300	+196.6%	₩684K ($475)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	73	₩26,300	+196.6%	₩2M ($1K)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	2	₩26,300	+196.6%	₩53K ($37)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	4	₩26,300	+196.6%	₩105K ($73)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	1	₩26,300	+196.6%	₩26K ($18)
2025-05-07	BUY	Market Buy	김종준 Jongjun Kim	Internal director	5	₩26,300	+196.6%	₩132K ($91)

Showing the 50 most recent of 111 filings.

Frequently asked questions

Who has been buying gigabis stock?: 13 distinct insiders have filed 66 disclosed insider purchases in gigabis (420770), most recently on 2026-07-07. 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 gigabis have?: gigabis has 66 buy-side and 23 sell-side disclosures on record, covering ₩12.6B ($8.8M) in total reported value, spanning 2024-06-03 to 2026-07-07.
Where does StockDrifts get gigabis 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 gigabis. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.